Sagar Aryal, PhD

Sagar Aryal is a microbiologist and a scientific blogger. He completed his Ph.D. degree in Microbiology from the Central Department of Microbiology, Tribhuvan University, Kathmandu, Nepal in 2025. He was awarded the DAAD Research Grant to conduct part of his Ph.D. research work for two years (2019-2021) at Helmholtz-Institute for Pharmaceutical Research Saarland (HIPS), Saarbrucken, Germany. Sagar is interested in research on actinobacteria, myxobacteria, and natural products. He is the Research Head of the Department of Natural Products, Kathmandu Research Institute for Biological Sciences (KRIBS), Lalitpur, Nepal. Sagar has more than 15 years of experience in blogging, content writing, and SEO. Sagar was awarded the SfAM Communications Award 2015: Professional Communicator Category from the Society for Applied Microbiology (Now: Applied Microbiology International), Cambridge, United Kingdom (UK). Sagar is also the ASM Young Ambassador to Nepal for the American Society for Microbiology since 2023 onwards.

Radial Immunodiffusion- Principle, Procedure, Results, Uses

September 5, 2022July 4, 2022 by Sagar Aryal, PhD

Result Interpretation of Radial Immunodiffusion

Immuno-diffusion is a technique for the detection or measurement of antibodies and antigens by their precipitation which involves diffusion through a substance such as agar or gel agarose. Simply, it … Read more

Ring Precipitation Test- Principle, Procedure, Results, Examples

September 5, 2022July 4, 2022 by Sagar Aryal, PhD

Results Interpretation of Ring Precipitation Test

Interactions of antibodies and antigens, in the form of various tests, have been developed to determine the presence or absence of antibodies or antigens in a sample. A type of … Read more

Immunoglobulin E (IgE)- Definition, Structure and Functions

September 5, 2022July 2, 2022 by Sagar Aryal, PhD

Immunoglobulin E (IgE)- Structure and Functions

Immunoglobulin E (IgE) Definition Immunoglobulin E (IgE) is one of the 5 classes of immunoglobulins, which is defined by the presence of epsilon (ε) heavy chain. It is present in … Read more

Anatomical Barriers of Immune System- Skin and Mucus

September 5, 2022July 1, 2022 by Sagar Aryal, PhD

Before a microbe or parasite can invade the host and cause infection, it must first attach to and penetrate the surface epithelial layers of the body. Organisms gain entrance into … Read more

Enterotoxigenic E. coli (ETEC)

January 15, 2023July 1, 2022 by Sagar Aryal, PhD

Image Source: CDC and Johns Hopkins Bloomberg School of Public Health Disease Caused Mode of Transmission The infections are primarily acquired through consumption of fecally contaminated food or water. Person-to-person … Read more

Immunoglobulin D (IgD)- Structure and Functions

September 5, 2022June 29, 2022 by Sagar Aryal, PhD

Immunoglobulin D (IgD) is a unique immunoglobulin with a low concentration in serum and the exact function of which is not known. IgD represents about 0.25% of the total serum … Read more

Biochemical Test of Burkholderia cepacia

September 5, 2022June 28, 2022 by Sagar Aryal, PhD

a: Burkholderia cepacia ATCC (Image Source: ATCC) b: Burkholderia cepacia (Image Source: Rapid Microbiology) c: Burkholderia cepacia (Image Source: OMICS International) d: Burkholderia cepacia complex from respiratory secretions of patients … Read more