The International Food Packaging Association, which is registered in Hong Kong, issued a report in Beijing that from May to August, the inner and outer layers of fluorescent materials for cups, such as instant noodles, milk tea cups, disposable cups, and paper bowls, will be packaged. Stiffness an ......Reading more

The microscope is one of the products of continuous scientific progress. Before it was invented, we can only see what the naked eye can see. Now with the microscope, we can see a lot of tiny things that the naked eye cannot see, just like cells Structure, molecular structure, etc. Since it is so m ......Reading more

1. Concentration of samples During the preparation process, biological macromolecules become very dilute due to column purification. For storage and identification purposes, they often need to be concentrated. Commonly used concentration methods: 1. Vacuum concentration, evaporation and concentr ......Reading more

In the packaging printing process, the phenomenon of streaks or light color printing occasionally occurs. This failure, which is called no ink and ink release roller, is caused by the swelling of the color and filler of the packaging printing ink system. Due to gelation. Explain from a theoretica ......Reading more

(1) Source of primary antibody species The type of secondary antibody is mainly determined according to the source of the primary antibody species. If the primary antibody is derived from a mouse, then the secondary antibody can be purchased from anti-mouse (such as sheep anti-mouse, rabbit anti- ......Reading more

"Eat seven times full"-control the intake of diet, can make healthier points. Dieting has proven to be effective in delaying aging and prolonging life in many species, and obesity caused by overnutrition can induce many metabolic diseases related to aging, such as diabetes, cardiovascula ......Reading more

The Collaborative Innovation Center for High-Performance High-performance Polymer Materials with Academician Yang Yuliang, President of Fudan University, as the chief scientist was launched at Fudan University. The Innovation Center was established by Fudan University, Sinopec Beijing Institute of ......Reading more