Production and properties of electrosprayed sericin nanopowder

Science and Technology of Advanced Materials. 2012;13(3):035010

 

Journal Homepage

Journal Title: Science and Technology of Advanced Materials

ISSN: 1468-6996 (Print); 1878-5514 (Online)

Publisher: National Institute for Materials Science

Society/Institution: National Institute for Materials Science

LCC Subject Category: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials | Technology: Chemical technology: Biotechnology

Country of publisher: Japan

Language of fulltext: English

Full-text formats available: PDF, HTML

 

AUTHORS

Najmeh Hazeri, Hossein Tavanai and Ali Reza Moradi

EDITORIAL INFORMATION

Peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 15 weeks

 

Abstract | Full Text

Sericin is a proteinous substrate that envelops fibroin (silk) fiber, and its recovery provides significant economical and social benefits. Sericin is an antibacterial agent that resists oxidation and absorbs moisture and UV light. In powder form, sericin has a wide range of applications in food, cosmetics and drug delivery. Asides from other techniques of producing powder, such as precipitation and spray drying, electrospraying can yield solid nanoparticles, particularly in the submicron range. Here, we report the production of sericin nanopowder by electrospraying. Sericin sponge was recovered from Bombyx mori cocoons through a high-temperature, high-pressure process, followed by centrifugation and freeze drying of the sericin solution. The electrospraying solution was prepared by dissolving the sericin sponge in dimethyl sulfoxide. We demonstrate that electrospraying is capable of producing sericin nanopowder with an average particle size of 25 nm, which is by far smaller than the particles produced by other techniques. The electrosprayed sericin nanopowder consists of small crystallites and exhibits a high moisture absorbance.