Formulation and characterization of a plasma sterilized, pharmaceutical grade chitosan powder.
Formulation and characterization of a plasma sterilized, pharmaceutical grade chitosan powder.
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等离子体灭菌的医药级壳聚糖粉末的配方和表征。
DOI:
10.1016/j.carbpol.2016.03.003
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发表时间:
2016
影响因子:
11.2
通讯作者:
Kirsch,WolffM
中科院分区:
文献类型:
--
作者:
Crofton,AndrewR;Hudson,SamuelM;Howard,Kristy;Pender,Tyler;Abdelgawad,Abdelrahman;Wolski,Daniel;Kirsch,WolffM
Chitosan has great potential as a pharmaceutical excipient. In this study, chitosan flake was micronized using cryo-ball and cryo-jet milling and subsequently sterilized with nitrogen plasma. Micronized chitosan was characterized by laser diffraction, scanning electron microscopy (SEM), conductometric titration, viscometry, loss on drying, FTIR, and limulus amebocyte lysate (LAL) assays. Cryo-jet milling produced mean particle size of 16.05 μm, 44% smaller than cryo-ball milling. Cryomilled chitosan demonstrated increased hygroscopicity, but reduced molecular weight and degree of deacetylation (DD). SEM imaging showed highly irregular shapes. FTIR showed changes consistent with reduced DD and an unexplained shift at 1100 cm−1. Plasma treated chitosan was sterile with <2.5 EU/g after low-pressure plasma and <1.3 EU/g after atmospheric pressure plasma treatment. Plasma treatment decreased the reduced viscosity of chitosan flake and powder, with a greater effect on powder. In conclusion, pharmaceutical grade, sterile chitosan powder was produced with cryo-jet milling and plasma sterilization.
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DOI:
--
发表时间:
2007
期刊:
Journal of Pharmacy and Science
影响因子:
--
作者:
Antonia Miranda;M. Millán;I. Caraballo
通讯作者:
I. Caraballo
影响因子:
2.1
作者:
F. Ahmadi;Z. Oveisi;S. Samani;Zohreh Amoozgar
通讯作者:
F. Ahmadi;Z. Oveisi;S. Samani;Zohreh Amoozgar
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
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通讯作者:
A. Göpferich
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
Po;Chi Li;Chi;Hsuan
通讯作者:
Hsuan
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
C. Cornelius
通讯作者:
C. Cornelius