What are Biological Samples? Biological samples are important resources for medical research. Pathological tissue and cell samples are common clinical biological samples, mainly in clinical

Pfizer, Moderna’s COVID-19 vaccine and the latest Janssen single-dose jab have turned the vaccine cold chain into hot topics. But what is a cold chain? How does

Introduction on PCR In 1971, Kleppe et al. published an article in the Journal of molecular biology，accurately, concisely, and objectively describing the PCR method for the first