{"id":40633,"date":"2023-06-13T21:29:06","date_gmt":"2023-06-13T15:44:06","guid":{"rendered":"https:\/\/microbenotes.com\/?p=40633"},"modified":"2023-06-13T21:29:10","modified_gmt":"2023-06-13T15:44:10","slug":"petri-dish-plate","status":"publish","type":"post","link":"https:\/\/microbenotes.com\/petri-dish-plate\/","title":{"rendered":"Petri Dish: Definition, Parts, Types, Uses, 4 Examples"},"content":{"rendered":"\n<p><strong>A petri dish is a small shallow transparent dish with a lid that is mainly used in biological experiments for the <a href=\"https:\/\/microbenotes.com\/animal-cell-culture\/\" data-type=\"post\" data-id=\"34946\">culture of cells<\/a>.<\/strong><\/p>\n\n\n\n<p>For instance, in microbiological experiments, a <strong>Petri dish<\/strong> is used as a container to grow microbes with growth media in it. It is derived from the name of its inventor, German bacteriologist Julius Richard Petri.<br>It is also called a Petri plate or culture plate.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1205\" height=\"631\" src=\"https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish.jpg\" alt=\"Petri Dish\" class=\"wp-image-40639\" srcset=\"https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish.jpg 1205w, https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish-300x157.jpg 300w, https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish-1024x536.jpg 1024w, https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish-768x402.jpg 768w\" sizes=\"(max-width: 1205px) 100vw, 1205px\" \/><figcaption class=\"wp-element-caption\">Petri Dish<\/figcaption><\/figure>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_65 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title \" >Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #0a0a0a;color:#0a0a0a\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #0a0a0a;color:#0a0a0a\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#history-of-petri-dish\" title=\"History of Petri Dish\">History of Petri Dish<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#parts-of-petri-dish\" title=\"Parts of Petri Dish\">Parts of Petri Dish<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#types-of-petri-dish\" title=\"Types of Petri Dish\">Types of Petri Dish<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#based-on-shape\" title=\"Based on shape\">Based on shape<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#based-on-usability\" title=\"Based on usability&nbsp;\">Based on usability&nbsp;<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#based-on-the-type-of-material\" title=\"Based on the type of material\">Based on the type of material<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#based-on-compartments\" title=\"Based on compartments\">Based on compartments<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#applications-of-petri-dish\" title=\"Applications of Petri Dish\">Applications of Petri Dish<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#advantages-of-petri-dish\" title=\"Advantages of Petri Dish\">Advantages of Petri Dish<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#limitations-of-petri-dish\" title=\"Limitations of Petri Dish\">Limitations of Petri Dish<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#how-to-use-a-petri-dish-in-the-laboratory\" title=\"How to use a petri dish in the laboratory?\">How to use a petri dish in the laboratory?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#why-is-the-petri-dish-placed-upside-down-during-incubation\" title=\"Why is the petri dish placed upside down during incubation?\">Why is the petri dish placed upside down during incubation?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#precautions\" title=\"Precautions\">Precautions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#petri-dish-examples\" title=\"Petri Dish Examples\">Petri Dish Examples<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#petri-dish-ms-0350z-phc-europe-bv-phcbi\" title=\"Petri dish MS-0350Z (PHC Europe B.V.\/ PHCbi)\">Petri dish MS-0350Z (PHC Europe B.V.\/ PHCbi)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#petri-dish-cell-d-series-haier-biomedical\" title=\"Petri dish CELL-D series (Haier Biomedical)\">Petri dish CELL-D series (Haier Biomedical)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#petri-dish-sterilin%e2%84%a2-thermo-scientific\" title=\"Petri dish Sterilin\u2122 (Thermo Scientific)\">Petri dish Sterilin\u2122 (Thermo Scientific)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#petri-dish-with-counting-grid-d210-17-simport\" title=\"Petri dish with counting grid D210-17 (Simport)\">Petri dish with counting grid D210-17 (Simport)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/#references\" title=\"References\">References<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"history-of-petri-dish\"><\/span><strong>History of Petri Dish<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In the 19th century, while working in Koch\u2019s laboratory, German bacteriologist Julius Richar Petri first invented the Petri dish. Petri was working as an assistant to <a href=\"https:\/\/microbenotes.com\/robert-koch-and-kochs-postulates\/\" data-type=\"post\" data-id=\"1800\">Robert Koch<\/a>, the renowned German microbiologist. At that time, bacteria used to be cultured in test tubes or flasks with solid media. Hence it was difficult to handle and observe.<\/p>\n\n\n\n<p>Petri solved the problem by improving the old method and creating a shallow, flat dish for easy observation and manipulation of bacterial colonies. In 1887, he published his work \u201c<em>Eine kleine Modification des Kochschen Platten Verfahrens<\/em>\u201d (A small modification of Koch\u2019s plate method) in which he described the design and uses of such a dish, later known as a Petri dish.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"parts-of-petri-dish\"><\/span><strong>Parts of Petri Dish<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The parts of Petri plates include a transparent container with a lid\/cover. Normally, parafilm is used to seal the Petri plates. The bottom dish\/ container is a larger part that holds the medium and provides a stable base for the plate. It is usually flat with a slightly ridged rim to avoid spillage of agar medium. Labeling with the date, name of the sample, type of medium used, or any other relevant information is done on the bottom dish.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1500\" height=\"946\" src=\"https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Parts-of-Petri-Dish.jpg\" alt=\"Parts of Petri Dish\" class=\"wp-image-40642\" srcset=\"https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Parts-of-Petri-Dish.jpg 1500w, https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Parts-of-Petri-Dish-300x189.jpg 300w, https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Parts-of-Petri-Dish-1024x646.jpg 1024w, https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Parts-of-Petri-Dish-768x484.jpg 768w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" \/><figcaption class=\"wp-element-caption\">Parts of Petri Dish<\/figcaption><\/figure>\n\n\n\n<p>Likewise, the lid\/cover is the smaller part of the Petri plate that fits on the top of the bottom dish. It protects the medium from contamination and moisture loss. It is slightly larger than the bottom dish. The lid is also transparent, like the bottom dish, allowing for easy observation of samples inside the dish.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"types-of-petri-dish\"><\/span><strong>Types of<strong> Petri Dish<\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"based-on-shape\"><\/span><strong>Based on shape<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Usually, Petri dishes are cylindrical, with diameters ranging from 30 to 200 millimeters. Square and rectangular-shaped Petri dishes are also available.\u00a0<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"based-on-usability\"><\/span><strong>Based on usability&nbsp;<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>They may be reusable or disposable, depending on the type of materials they are made of.\u00a0 Reusables are durable in the sense that they can withstand repeated dry\/wet sterilization procedures.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"based-on-the-type-of-material\"><\/span><strong>Based on the type of material<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>They can be made of glass, polystyrene, polypropylene, or cellulose acetate.\u00a0<\/p>\n\n\n\n<p><strong>Glass<\/strong>: Borosilicate glass is often used, which is heat resistant and suited for sterilization in autoclaves or even in laboratory ovens at 120-160\u00b0C.\u00a0<\/p>\n\n\n\n<p><strong>Plastic: <\/strong>Plastic petri plates are a good choice if cross-contamination is a problem, as they are disposable. However, they have poor low-temperature performance.\u00a0<\/p>\n\n\n\n<ul>\n<li>Polystyrene Petri dishes are disposable and cheap with their wider performance in industrial and clinical settings for routine microbiological testing.<\/li>\n\n\n\n<li>Polypropylene petri dishes are lightweight, heat and chemical resistant, and more durable than glass Petri dishes.<\/li>\n<\/ul>\n\n\n\n<p><strong>Cellulose acetate:<\/strong> This type of petri dish is particularly relevant where there is a substantial requirement of oxygen and carbon dioxide, thus facilitating greater gas permeability.<\/p>\n\n\n\n<p><strong>Nitrile petri plates<\/strong> are a good choice for low-temperature applications with a temperature range of -30 F to 275 F.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"based-on-compartments\"><\/span><strong>Based on compartments<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Compartments in Petri dishes allow the preparation of multiple <a href=\"https:\/\/microbenotes.com\/types-of-culture-media\/\" data-type=\"post\" data-id=\"36320\">culture media<\/a> in a single plate. The number of compartments may range from 2 to 4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"applications-of-petri-dish\"><\/span><strong>Applications <strong>of Petri Dish<\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol>\n<li>It is used to culture cells in the storage space present in it. One of the reasons to use this method is also to protect cells from contamination. Also, the transparency of glass\/plastic helps to observe the growth of organisms without disturbing them.&nbsp;<\/li>\n\n\n\n<li>Sometimes, it can also be used in schools and colleges for science projects like the observation of seed germination.<br>Some petri dishes can be used to measure the density of culture with the help of grids printed on their bottom.&nbsp;<\/li>\n\n\n\n<li>They are used for the storage of samples in liquid or granular form or small objects like insects and seeds.&nbsp;<\/li>\n\n\n\n<li>They are also used in the evaporation and drying of samples.\u00a0<\/li>\n<\/ol>\n\n\n\n<p>One of the common applications of Petri plates is to make agar plates. Here is the simple procedure for making an agar plate:\u00a0<\/p>\n\n\n\n<ol>\n<li>Add an appropriate amount of agar with an appropriate volume of distilled water.<\/li>\n\n\n\n<li>If using nutrient broth or other growth media, add it to the agar mixture and mix.<\/li>\n\n\n\n<li>Place the flask with the agar mixture in an <a href=\"https:\/\/microbenotes.com\/autoclave\/\" data-type=\"post\" data-id=\"28626\">autoclave<\/a> for sterilization.<\/li>\n\n\n\n<li>Carefully remove the flask from the autoclave and allow it to cool to a temperature that is enough to handle but still in a liquid state. Cooling for a longer time might cause the solidification of agar inside the flask.<\/li>\n\n\n\n<li>Pour the liquid agar mixture into sterile petri plates in the aseptic environment. Agar should be filled to about \u00bc or \u00bd inch depth. After pouring, swirl the plate to distribute the agar uniformly and let it solidify.<\/li>\n\n\n\n<li>Once the agar is solidified, cover the container with a lid and wrap them with parafilm to avoid drying out and contamination.<\/li>\n\n\n\n<li>Store the plates in the refrigerator until use.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"advantages-of-petri-dish\"><\/span><strong>Advantages <strong>of Petri Dish<\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol>\n<li>It provides the storage space for culturing the cells.&nbsp;<\/li>\n\n\n\n<li>It also helps to avoid contamination.<\/li>\n\n\n\n<li>It also comes in different sizes and shapes, which broadens its application.<\/li>\n\n\n\n<li>The transparent feature of the petri dish helps observe cells inside it without needing to remove the lid.<\/li>\n\n\n\n<li>Reusability after sterilization is another advantage of using a glass petri dish.&nbsp;<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"limitations-of-petri-dish\"><\/span><strong>Limitations <strong>of Petri Dish<\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol>\n<li>One of the limitations of using a Petri plate is the need for skilled users. Otherwise, contamination is always a possibility.\u00a0<\/li>\n\n\n\n<li>The material used to make Petri dishes is another limitation. Plastic and glass might not be biocompatible or affect experiments dealing with sensitive cells.<\/li>\n\n\n\n<li>Likewise, it doesn&#8217;t mimic the physiological conditions where the cells\/microbes grow.&nbsp;<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"how-to-use-a-petri-dish-in-the-laboratory\"><\/span><strong>How to use a petri dish in the laboratory?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol>\n<li>After using the dish, treat it with bleach and sterilize it.<\/li>\n\n\n\n<li>Sterilize the dishes even before using them.<\/li>\n\n\n\n<li>Store the petri dish in the <a href=\"https:\/\/microbenotes.com\/laboratory-refrigerators-freezers\/\" data-type=\"post\" data-id=\"39742\">refrigerator<\/a> or any storage system upside-down.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"why-is-the-petri-dish-placed-upside-down-during-incubation\"><\/span><strong>Why is the petri dish placed upside down during incubation?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul>\n<li>Evaporation of water takes place on incubation. So, if the Petri plates are placed in a normal position without inverting, the condensation of water from the lid onto the container causes a mix-up of the colony. Therefore, this\u00a0leads to uneven growth of microorganisms and interferes with determining microbial count.<\/li>\n\n\n\n<li><strong>Placing the plates upside-down lowers the evaporation rate and prevents media dryness. Thus, a favorable environment for proper microbial growth is created.<\/strong><\/li>\n\n\n\n<li>The contaminants are likely to settle on the lid. The placement of the plate in an inverted position reduces the risk of contaminant contact with the culture.<\/li>\n\n\n\n<li>Easy handling of the inverted Petri dishes.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"precautions\"><\/span><strong>Precautions<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol>\n<li><a href=\"https:\/\/microbenotes.com\/physical-methods-of-sterilization\/\" data-type=\"post\" data-id=\"27119\">Sterilization<\/a> or disposal of Petri dishes should be done before and after their use.<\/li>\n\n\n\n<li>Gloves should be worn while using Petri dishes.<\/li>\n\n\n\n<li>Experiments should be performed in a sterile environment.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"petri-dish-examples\"><\/span><strong><span>Petri Dish<\/span> Examples<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"petri-dish-ms-0350z-phc-europe-bv-phcbi\"><\/span><strong>Petri dish MS-0350Z (PHC Europe B.V.\/ PHCbi)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul>\n<li>Ultra-hydrophilic polymers are used to pre-coat the plates that allow spheroid formation.<\/li>\n\n\n\n<li>High optical clarity in plates facilitates <a href=\"https:\/\/microbenotes.com\/brightfield-microscope\/\" data-type=\"post\" data-id=\"25884\">bright field<\/a> imaging and <a href=\"https:\/\/microbenotes.com\/confocal-microscope\/\" data-type=\"post\" data-id=\"25694\">confocal microscopy<\/a>.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"petri-dish-cell-d-series-haier-biomedical\"><\/span><strong>Petri dish CELL-D series (Haier Biomedical)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul>\n<li>These polystyrene petri plates can be employed for all types of culturing.<\/li>\n\n\n\n<li>These plates have a flat transparent surface that allows distortion-free observation under the <a href=\"https:\/\/microbenotes.com\/parts-of-a-microscope\/\" data-type=\"post\" data-id=\"25570\">microscope<\/a>.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1500\" height=\"1562\" src=\"https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish-Examples.jpg\" alt=\"Petri Dish Examples\" class=\"wp-image-40648\" srcset=\"https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish-Examples.jpg 1500w, https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish-Examples-288x300.jpg 288w, https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish-Examples-983x1024.jpg 983w, https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish-Examples-768x800.jpg 768w, https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish-Examples-1475x1536.jpg 1475w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" \/><figcaption class=\"wp-element-caption\">Figure: <span>Petri Dish<\/span> Examples. Image Source: Respective Company Websites.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"petri-dish-sterilin%e2%84%a2-thermo-scientific\"><\/span><strong>Petri dish Sterilin\u2122 (Thermo Scientific)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul>\n<li>Their sizes range from 30 to 140mm and are specifically designed to handle liquid media.<\/li>\n\n\n\n<li>They are suited for clinical and translational research and help to save <a href=\"https:\/\/microbenotes.com\/incubator\/\" data-type=\"post\" data-id=\"28326\">incubator<\/a> space.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"petri-dish-with-counting-grid-d210-17-simport\"><\/span><strong>Petri dish with counting grid D210-17 (Simport)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<ul>\n<li>These polystyrene dishes are offered with a grid 10X10 mm grid with numbered and lettered squares, which facilitate counting and locating colonies.<\/li>\n\n\n\n<li>There are two different models: one with a flat bottom and the other with a convex one.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"references\"><\/span><strong>References<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul>\n<li><a href=\"https:\/\/www.scienceequip.com.au\/blogs\/news\/petri-dish-function-and-their-uses-in-laboratory\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.scienceequip.com.au\/blogs\/news\/petri-dish-function-and-their-uses-in-laboratory<\/a><\/li>\n\n\n\n<li>https:\/\/www.globalspec.com\/learnmore\/labware_scientific_instruments\/labware_consumables\/petri_dishes<\/li>\n\n\n\n<li>https:\/\/www.npr.org\/2011\/12\/16\/143847287\/science-diction-the-origin-of-the-petri-dish<\/li>\n\n\n\n<li>https:\/\/archive.org\/details\/1887-petri-eine-kleine-modification-des-koch-schen-plattenverfahrens-2020-braus-<\/li>\n\n\n\n<li>https:\/\/microbiologie-clinique.com\/petri-dish.html<\/li>\n\n\n\n<li>https:\/\/www.pharmaguideline.com\/2015\/09\/incubation-of-petri-dishes-in-inverted-position.html<\/li>\n\n\n\n<li>https:\/\/www.medicalexpo.com\/prod\/phc-europe-bv-phcbi\/product-70908-1008612.html<\/li>\n\n\n\n<li>https:\/\/www.medicalexpo.com\/prod\/haier-biomedical\/product-299012-1058139.html<\/li>\n\n\n\n<li>https:\/\/www.medicalexpo.com\/prod\/thermo-scientific\/product-78678-591283.html<\/li>\n\n\n\n<li>https:\/\/www.medicalexpo.com\/prod\/thermo-scientific\/product-78678-591283.html<\/li>\n\n\n\n<li>https:\/\/www.medicalexpo.com\/prod\/simport-scientific\/product-70088-1091010.html<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>A petri dish is a small shallow transparent dish with a lid that is mainly used in biological experiments for the culture of cells. For instance, in microbiological experiments, a &#8230; <a title=\"Petri Dish: Definition, Parts, Types, Uses, 4 Examples\" class=\"read-more\" href=\"https:\/\/microbenotes.com\/petri-dish-plate\/\" aria-label=\"Read more about Petri Dish: Definition, Parts, Types, Uses, 4 Examples\">Read more<\/a><\/p>\n","protected":false},"author":22,"featured_media":40639,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2578,1572],"tags":[],"custom":{"td_video":"","featured_image":"https:\/\/microbenotes.com\/wp-content\/uploads\/2023\/06\/Petri-Dish.jpg","author":{"name":"Prakriti Karki","avatar":"https:\/\/secure.gravatar.com\/avatar\/8e6c4c88539ae6b43f1a4026a537a97a?s=96&d=mm&r=g"},"categories":[{"term_id":2578,"name":"Instrumentation","slug":"instrumentation","term_group":0,"term_taxonomy_id":2578,"taxonomy":"category","description":"<strong>Instrumentation is a collection of devices and mechanics used to measure, evaluate, and test systems.<\/strong>\r\n<ul>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">In biology, the instrumentation is considered a part of biomedical engineering where the working mechanism and the parts of a system are studies.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Instrumentation in biology or Bioinstrumentation is primarily concentrated on bringing the engineering and medical worlds together.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Different devices like centrifuges and autoclaves that are common in biological laboratories are a part of the instrumentation. Studies done in instrumentations allow the understanding of the parts and working mechanisms of such devices.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Other important techniques include chromatography which is routinely performed in laboratories to separate biological systems, which are also equally important.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Instrumentation is still an emerging discipline with new pieces of machinery still being produced for convenience in laboratories.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The application of bio-instruments is not only limited to laboratories as modern agriculture makes use of bio-instruments to monitor and evaluate soil and to measure plant growth.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Besides, these instruments can also be used to determine the physiological activities of plants like the carbon dioxide trade rate, net photosynthesis, etc.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Processes like electrophoresis make use of nucleic acids along with biosensors to compare the DNA sequences. This enables genetic testing and diagnosis of various diseases.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Genetic testing is heavily influenced by the progress made in instrumentation as new devices and techniques are discovered which makes the process faster, more accurate, and more reliable.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">As RT-PCR and blotting are considered advanced molecular diagnosis methods, disease diagnosis becomes faster and more accurate than ever.\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Determination of radioisotopes and concentration of a solution has been made easier with techniques like spectroscopy and colorimetry.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">As the discipline continues to grow, the main focus of the field remains in the improvements of technology to make the medical processes faster and more efficient.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Instrumentation, thus, is slowly becoming an integral part of all biological fields with new emerging new technology and the discovery of fast and reliable procedures.<\/span><\/li>\r\n<\/ul>","parent":0,"count":64,"filter":"raw","cat_ID":2578,"category_count":64,"category_description":"<strong>Instrumentation is a collection of devices and mechanics used to measure, evaluate, and test systems.<\/strong>\r\n<ul>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">In biology, the instrumentation is considered a part of biomedical engineering where the working mechanism and the parts of a system are studies.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Instrumentation in biology or Bioinstrumentation is primarily concentrated on bringing the engineering and medical worlds together.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Different devices like centrifuges and autoclaves that are common in biological laboratories are a part of the instrumentation. Studies done in instrumentations allow the understanding of the parts and working mechanisms of such devices.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Other important techniques include chromatography which is routinely performed in laboratories to separate biological systems, which are also equally important.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Instrumentation is still an emerging discipline with new pieces of machinery still being produced for convenience in laboratories.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">The application of bio-instruments is not only limited to laboratories as modern agriculture makes use of bio-instruments to monitor and evaluate soil and to measure plant growth.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Besides, these instruments can also be used to determine the physiological activities of plants like the carbon dioxide trade rate, net photosynthesis, etc.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Processes like electrophoresis make use of nucleic acids along with biosensors to compare the DNA sequences. This enables genetic testing and diagnosis of various diseases.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Genetic testing is heavily influenced by the progress made in instrumentation as new devices and techniques are discovered which makes the process faster, more accurate, and more reliable.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">As RT-PCR and blotting are considered advanced molecular diagnosis methods, disease diagnosis becomes faster and more accurate than ever.\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Determination of radioisotopes and concentration of a solution has been made easier with techniques like spectroscopy and colorimetry.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">As the discipline continues to grow, the main focus of the field remains in the improvements of technology to make the medical processes faster and more efficient.<\/span><\/li>\r\n \t<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Instrumentation, thus, is slowly becoming an integral part of all biological fields with new emerging new technology and the discovery of fast and reliable procedures.<\/span><\/li>\r\n<\/ul>","cat_name":"Instrumentation","category_nicename":"instrumentation","category_parent":0},{"term_id":1572,"name":"Basic Microbiology","slug":"basic-microbiology","term_group":0,"term_taxonomy_id":1572,"taxonomy":"category","description":"<strong>Microbiology is the branch of science that deals with microscopic organisms and their interaction with other microscopic and macroscopic organisms.<\/strong>\r\n<ul>\r\n \t<li>Microorganisms are tiny microscopic organisms that are too small to be seen with naked eyes and thus, can only be seen with a microscope. Microorganisms include microscopic organisms like bacteria, fungi, archaea, protozoa, and viruses.<\/li>\r\n \t<li>Basic microscopy deals with a diverse group of studies that help in research related to the biochemistry, physiology, cell biology, ecology, evolution, and clinical aspects of microorganisms, including the host response to these agents.<\/li>\r\n \t<li>Microbiology also deals with the structure, function, classification of such organisms, along with exploiting and controlling their activities.<\/li>\r\n \t<li>The concept of microbiology began with the discovery of the microscope by Anton Von Leeuwenhoek.<\/li>\r\n \t<li>On the one hand, microbes are used for their unique features which allow the production of antibiotics, amino acids, hormones, and other therapeutic compounds, and also the production of food and food-related products.<\/li>\r\n \t<li>Microorganisms are also involved in the decomposition of components such as lignocellulosic biomass for second-generation ethanol or biogas.<\/li>\r\n \t<li>Similarly, certain genetic features and biochemical abilities of microorganisms make them dangerous for industry (food spoilage) as well as human health.<\/li>\r\n \t<li>Microbiology, initially, was only associated with pathogenic microorganisms that result in different forms of diseases in different groups of living beings.<\/li>\r\n \t<li>With the establishment of microbiology as a discipline, the application of microorganisms in different areas has also increased.<\/li>\r\n \t<li>The use of microorganisms in food and pharmaceuticals has given rise to the branching of microbiology into further disciplines and studies.<\/li>\r\n \t<li>Thus, over the years, the branch has been classified into further groups like agriculture microbiology, food microbiology, pharmaceutical microbiology, systemic microbiology, etc.<\/li>\r\n \t<li>The studies in microbiology have also increased due to the use of microorganisms in different researches as these are easy to manipulate and reproduce when compared to other living organisms.<\/li>\r\n \t<li>Studies in microbiology are essential for the discovery of new and advanced methods for the discovery of emerging microorganisms and associated diseases and applications.<\/li>\r\n \t<li>Microbiology also deals with techniques for the identification of these microorganisms, their classification, and the life cycle.<\/li>\r\n \t<li>All of this allows for a better understanding of microorganisms and their role in maintaining the ecosystem.<\/li>\r\n \t<li>Microbiology and microorganisms can be applied for the formation of new genetically engineered microorganisms by a process like genetic recombination.<\/li>\r\n \t<li>Besides, different microorganisms have found their application in the production of food, industrial products, and antibiotics.<\/li>\r\n<\/ul>","parent":0,"count":60,"filter":"raw","cat_ID":1572,"category_count":60,"category_description":"<strong>Microbiology is the branch of science that deals with microscopic organisms and their interaction with other microscopic and macroscopic organisms.<\/strong>\r\n<ul>\r\n \t<li>Microorganisms are tiny microscopic organisms that are too small to be seen with naked eyes and thus, can only be seen with a microscope. Microorganisms include microscopic organisms like bacteria, fungi, archaea, protozoa, and viruses.<\/li>\r\n \t<li>Basic microscopy deals with a diverse group of studies that help in research related to the biochemistry, physiology, cell biology, ecology, evolution, and clinical aspects of microorganisms, including the host response to these agents.<\/li>\r\n \t<li>Microbiology also deals with the structure, function, classification of such organisms, along with exploiting and controlling their activities.<\/li>\r\n \t<li>The concept of microbiology began with the discovery of the microscope by Anton Von Leeuwenhoek.<\/li>\r\n \t<li>On the one hand, microbes are used for their unique features which allow the production of antibiotics, amino acids, hormones, and other therapeutic compounds, and also the production of food and food-related products.<\/li>\r\n \t<li>Microorganisms are also involved in the decomposition of components such as lignocellulosic biomass for second-generation ethanol or biogas.<\/li>\r\n \t<li>Similarly, certain genetic features and biochemical abilities of microorganisms make them dangerous for industry (food spoilage) as well as human health.<\/li>\r\n \t<li>Microbiology, initially, was only associated with pathogenic microorganisms that result in different forms of diseases in different groups of living beings.<\/li>\r\n \t<li>With the establishment of microbiology as a discipline, the application of microorganisms in different areas has also increased.<\/li>\r\n \t<li>The use of microorganisms in food and pharmaceuticals has given rise to the branching of microbiology into further disciplines and studies.<\/li>\r\n \t<li>Thus, over the years, the branch has been classified into further groups like agriculture microbiology, food microbiology, pharmaceutical microbiology, systemic microbiology, etc.<\/li>\r\n \t<li>The studies in microbiology have also increased due to the use of microorganisms in different researches as these are easy to manipulate and reproduce when compared to other living organisms.<\/li>\r\n \t<li>Studies in microbiology are essential for the discovery of new and advanced methods for the discovery of emerging microorganisms and associated diseases and applications.<\/li>\r\n \t<li>Microbiology also deals with techniques for the identification of these microorganisms, their classification, and the life cycle.<\/li>\r\n \t<li>All of this allows for a better understanding of microorganisms and their role in maintaining the ecosystem.<\/li>\r\n \t<li>Microbiology and microorganisms can be applied for the formation of new genetically engineered microorganisms by a process like genetic recombination.<\/li>\r\n \t<li>Besides, different microorganisms have found their application in the production of food, industrial products, and antibiotics.<\/li>\r\n<\/ul>","cat_name":"Basic Microbiology","category_nicename":"basic-microbiology","category_parent":0}]},"_links":{"self":[{"href":"https:\/\/microbenotes.com\/wp-json\/wp\/v2\/posts\/40633"}],"collection":[{"href":"https:\/\/microbenotes.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microbenotes.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microbenotes.com\/wp-json\/wp\/v2\/users\/22"}],"replies":[{"embeddable":true,"href":"https:\/\/microbenotes.com\/wp-json\/wp\/v2\/comments?post=40633"}],"version-history":[{"count":0,"href":"https:\/\/microbenotes.com\/wp-json\/wp\/v2\/posts\/40633\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microbenotes.com\/wp-json\/wp\/v2\/media\/40639"}],"wp:attachment":[{"href":"https:\/\/microbenotes.com\/wp-json\/wp\/v2\/media?parent=40633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microbenotes.com\/wp-json\/wp\/v2\/categories?post=40633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microbenotes.com\/wp-json\/wp\/v2\/tags?post=40633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}