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Date Available
12-9-2014
Year of Publication
2014
Document Type
Master's Thesis
Degree Name
Master of Science (MS)
College
Arts and Sciences
Department/School/Program
Chemistry
Faculty
Dr. Doo Young Kim
Faculty
Dr. Dong-Sheng Yang
Abstract
Fluorescent carbon dots (C-dots) are well known for their low cell-cytotoxicity, biocompatibility, low preparation cost, excitation dependent photoluminescence, and excellent photostability. Typically, raw C-dots have low quantum efficiency and thus researchers have been utilizing biocompatible polymers such as polyethylene glycol (PEG) as a passivation agent in order to increase fluorescence signal. In this work, we report fluorescent self-passivated carbon nanodots (CNDs) synthesized from PEG by using it as a carbon source as well as a passivating agent. Importantly, the addition of graphene quantum dots (GQDs) during the synthesis of self-passivated CNDs can tune photoluminescence property. The results of bioimaging and cytotoxicity test of self-passivated CNDs hold promises for biomedicine applications.
Recommended Citation
Yeom, Sin Hea, "TEMPERATURE-DEPENDENT TUNABLE PHOTOLUMINESCENCE PROPERTIES OF CARBON NANODOTS DERIVED FROM POLYETHYLENE GLYCOL" (2014). Theses and Dissertations--Chemistry. 46.
https://uknowledge.uky.edu/chemistry_etds/46
