COMPOSITION, PREPARATION, AND USE OF CHITOSAN POWDER FOR BIOMEDICAL APPLICATIONS
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United States of America Patent
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Issued Date -
Mar 24, 2016
app pub date -
Sep 23, 2015
filing date -
Sep 23, 2014
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Abstract
A powder chitosan-based material can be used for biomedical applications. The chitosan has been treated in a nitrogen field by applying energy to ionize nitrogen in and around the chitosan material. A single or multiple such treatments may be employed. For example, the chitosan material may be irradiated under nitrogen using γ-irradiation, treated under a nitrogen plasma, or both. A powder chitosan material can be readily treated by surface modifying treatments such as irradiating under nitrogen using γ-irradiation, treating under a nitrogen plasma, or both.
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