В работе методом ионотропного гелеобразования синтезированы стабильные наночастицы хитозана. Изучены свойства образца хитозана - определены его степень дезацетилирования (83,7%), а также относительная и характеристическая вязкости растворов. Определены размеры наночастиц дзета-потенциал динамического рассеяния света. Проведено исследование влияния соотношений реагентов триполифосфата натрия на ...

Purpose: To create a skin delivery system based on chitosan-tripolyphosphate nanoparticles (cs-tpp np) for acyclovir with enhanced chemical stability and satisfying permeation through skin. Methods: Cs-tpp np were prepared based on ionotropic gelation between positively charged amino groups of cs and negatively charged tpp as previously reported by Krauland et al. [1] with different amounts of ...

The enzymatic conversion of vitamin Ba to its coenzyme form has been described in cell-free systems derived from Propionibacterium shermanii (1) and from Clostridium tetanomorphum (2). The 5’-deoxyadenosyl moiety that replaces the cobalt-bound cyanide of cyanocobalamin during Blz coenzyme formation is derived from adenosine triphosphate (ATP) (3). In the present work, the fate of the phosphate ...

a Institute of Feed Science, College of Animal Science, Zhejiang University, Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Hangzhou 310029, China b Laboratory of Fruit Molecular Physiology and Biotechnology, The State Agricultural Ministry Laboratory of Horticultural Plant Growth Development and Biotechnology, Department of Horticulture, Zhejiang University, Hangzhou 3100...

manganese zinc ferrite nanoparticles (mzf nps) were synthesized by using a direct, efficient and environmental friendly hydrothermal method. to improve the colloidal stability of mzf nps for biomedical applications, nps were coated with chitosan by ionic gelation technique using sodium tripolyphosphate (tpp) as crosslinker. the synthesized nps were characterized by x ray diffraction (xrd) analy...