CARBON NANODOT-POLYACRYLIC ACID COMPOSITE HYDROGEL, AND METHOD FOR PREPARING AND FORMULATION FOR FORMING THE SAME
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United States of America Patent
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Issued Date -
Apr 6, 2023
app pub date -
Aug 4, 2022
filing date -
Sep 24, 2021
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Abstract
Disclosed herein is a carbon nanodot-polyacrylic acid composite hydrogel including a polyacrylic acid-based gel matrix having carboxyl groups, and a plurality of fluorescent carbon nanodots having amino groups on surfaces thereof. The fluorescent carbon nanodots are formed by subjecting polyethylenimine and hydrochloric acid to a hydrothermal reaction, and are distributed in the polyacrylic acid-based gel matrix. The amino groups of the fluorescent carbon nanodots are covalently bonded with the carboxyl groups of the polyacrylic acid-based gel matrix. Also disclosed herein are a method for preparing and a formulation for forming a carbon nanodot-polyacrylic acid composite hydrogel.
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