Fluorescent carbon dots obtained from chitosan gel

Devasish Chowdhury, Neelam Gogoi, Gitanjali Majumdar
2012 RSC Advances  
Low molecular weight chitosan was purchased from Sigma Aldrich, Glycerol (about 98% purified), hydrochloric acid and sodium hydroxide pellets (purified) were purchased from Merck. Acetic acid glacial was purchased from Qualigens Fine Chemicals. All other materials used were of analytical reagent grade from commercial sources. Experimental Procedure The Chitosan/Ag or Au nanocomposites were prepared using the same procedure as used for the preparation of chitosan hydrogels. The nanocomposites
more » ... e prepared in two different ways: in-situ and ex-situ incorporation of Ag or Au NPs into the gel matrix.
doi:10.1039/c2ra21705h fatcat:ihedpctuwza2vpz7aua7scjzl4