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Nghiên cứu chế tạo bạc nano bằng phương pháp chiếu xạ gamma Co-60 sử dụng alignat làm chất ổn định.

Nguyễn Thị Kim Loan, Đặng Văn Phú, Võ Thị Kim Lăng, Nguyễn Ngọc Duy, Trương Thị Hạnh, Nguyễn Tuệ Anh, Nguyễn Quốc Hiến

Abstract


Silver nanoparticles have been widely applied in many fields. In this study, silver nanoparticles were prepared by gamma Co-60 irradiation using alginate as stabilizer. The conversion dose (Ag+® Ag0) was determined by UV-vis spectroscopy and the average size of silver nanoparticles was characterized by transmission electron microscopy (TEM). As a result, the particle sizes were in the range of  6 - 12 nm for Ag+ concentration from 1 to 5 mM. The effect of alginate concentration and the stability of colloidal silver nanoparicles solution were also investigated.


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