Currently, scientists have used several methods of extracting sericin contained in silk fiber. For example, the traditional thermal method, ultrasonic and microwave (ultra-high frequency - UHF rays) methods. When these methods are compared, the effectiveness of the microwave method is proven....

Silk fibroin (SF) is an excellent raw material for making many useful materials. Fibroin materials can be used in various environments. For this reason, it is very important to know the information about the amount of fibroin swelling in which solution medium and its swelling speed. Therefore, we...

Indigo dye is one of the dyes that has been used since ancient times and has maintained its importance to this day. Currently, indigo is obtained synthetically and from natural sources. Synthesis of indigo uses non-renewable resources, hurting the environment. This encourages research to improve...

In our research, quantum chemical calculations of the ability of osubstituted aromatic amines to react with urea were carried out in the SPK-DZP basis set of the GAMESS program, and compared with experimental results, the range of amines' reactivity, mechanism and relative activity was...