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Effect of. gamma. -irradiation on the crystalline structure of silk fibroin and silk sericin

Journal Article:

Abstract

Changes in the crystalline structure of silk sericin and silk fibroin induced by gamma-irradiation in the atmosphere described. The crystalline structure of silk sericin which had been subjected to gamma-irradiation remained unchanged. However the decomposition temperature of the specimen decreased to about 230 deg C, when the total dose of ..gamma.. rays exceeded 4.6 Mrad. The structure of the silk 1 type crystal of silk fibroin in the solid state, with a low degree of molecular orientation, changed into the silk 2 type crystal, when the total dose of ..gamma.. rays exceeded 4.6 Mrad. No changes in the crystalline structure were observed in the solid state of the silk 2 type crystal regardless of gamma-irradiation. The decrease in the decomposition temperature of the specimen was attributed to the decrease in the molecular orientation. However, the molecular conformation of silk fibroin with a randomly coiled structure remained unchanged even after gamma-irradiation.
Publication Date:
Feb 01, 1985
Product Type:
Journal Article
Reference Number:
AIX-17-082872; EDB-86-173772
Resource Relation:
Journal Name: Nippon Sanshigaku Zasshi; (Japan); Journal Volume: 54:1
Subject:
07 ISOTOPES AND RADIATION SOURCES; FIBERS; CHEMICAL RADIATION EFFECTS; CRYSTAL STRUCTURE; EXPERIMENTAL DATA; GAMMA RADIATION; IRRADIATION; PROTEINS; CHEMISTRY; DATA; ELECTROMAGNETIC RADIATION; INFORMATION; IONIZING RADIATIONS; NUMERICAL DATA; ORGANIC COMPOUNDS; RADIATION CHEMISTRY; RADIATION EFFECTS; RADIATIONS; 070204* - Radiation Sources- Industrial Uses, Radiometric
OSTI ID:
5208312
Research Organizations:
Sericultural Experiment Station, Yatabe, Ibaraki, Japan
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: CODEN: NISZA
Submitting Site:
INIS
Size:
Pages: 48-52
Announcement Date:
Nov 01, 1986

Journal Article:

Citation Formats

Tsukada, Masuhiro, and Aoki, Akira. Effect of. gamma. -irradiation on the crystalline structure of silk fibroin and silk sericin. Japan: N. p., 1985. Web.
Tsukada, Masuhiro, & Aoki, Akira. Effect of. gamma. -irradiation on the crystalline structure of silk fibroin and silk sericin. Japan.
Tsukada, Masuhiro, and Aoki, Akira. 1985. "Effect of. gamma. -irradiation on the crystalline structure of silk fibroin and silk sericin." Japan.
@misc{etde_5208312,
title = {Effect of. gamma. -irradiation on the crystalline structure of silk fibroin and silk sericin}
author = {Tsukada, Masuhiro, and Aoki, Akira}
abstractNote = {Changes in the crystalline structure of silk sericin and silk fibroin induced by gamma-irradiation in the atmosphere described. The crystalline structure of silk sericin which had been subjected to gamma-irradiation remained unchanged. However the decomposition temperature of the specimen decreased to about 230 deg C, when the total dose of ..gamma.. rays exceeded 4.6 Mrad. The structure of the silk 1 type crystal of silk fibroin in the solid state, with a low degree of molecular orientation, changed into the silk 2 type crystal, when the total dose of ..gamma.. rays exceeded 4.6 Mrad. No changes in the crystalline structure were observed in the solid state of the silk 2 type crystal regardless of gamma-irradiation. The decrease in the decomposition temperature of the specimen was attributed to the decrease in the molecular orientation. However, the molecular conformation of silk fibroin with a randomly coiled structure remained unchanged even after gamma-irradiation.}
journal = {Nippon Sanshigaku Zasshi; (Japan)}
volume = {54:1}
journal type = {AC}
place = {Japan}
year = {1985}
month = {Feb}
}