A basic biological fact is that, most tissue and organ cells are adherent in growth, which means they adhere to other cells or extracellular matrix within human body. During the process of adhering , the cells first secrete an extracellular matrix (ECM) that adheres to the surfaces of the substrate (e.g., the bottom of cell culture flask, cell culture dish). Later, when cells occupy every inch of the bottom, they need to be peeled off from the cell culture flask, passaged then transferred to other cell culture vessels by means of cell digestion.

NEST's Vacuum Filtration System is mainly applied in the isolation and purification of tissue culture medium and large volume biofluid samples. The system consists of a membrane, a receiving bottle and a transparent graduated polystyrene filter top, all of which are connected by a filter. With the pressure differential conducted by the vacuum pump, the Vacuum Filtration System can filtrate the tissue culture medium and other lab fluid solution in large volumes even up to several Liters. The filtrated samples can be gathered in aseptic storage bottles.

As a dedicated designer and manufacter of biotech products, NEST has assisted plenties of academics and researchers in achieving distinct accomplishment. The following is the journal article accomplished by the Research Team led by Prof. Zhang Yuyang, which is included in the academic journal Acta Pharmacologica Sinica. In this article, the structure basis of the feline drug GC376, an effective inhibition of SARS-CoV-2 is demonstrated.