Synthesis and Fabrication of Graphene Quantum Dots-Polypyrrole (GQDs-PPy) Nanocomposites in Bioengineering Applications as Supercapacitors and Fluorescent Probes
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Authors
Kalluri, Ankarao
Singh, Shrishti
Leighton, Devon
Macwan, Isaac
Patra, Prabir
Issue Date
2017-03-24
Type
Presentation
Language
en_US
Keywords
Bioengineering , Graphene quantum dots , Nanotechnology
Alternative Title
Abstract
Graphene quantum dots (GQDs), which are edge-bound nanometer-size graphene pieces, have fascinating optical and electronic properties. These GQDs fabricated by acid treatment and chemical exfoliation of pitch carbon-fibres and this produced GQDs have 1-4 nm in size with 2D morphology. The photoluminescence of the GQDs can be tailored through varying the size of the GQDs by changing the process parameters. Due to the luminescence stability, nanosecond lifetime, biocompatibility, low toxicity, and high water solubility, these GQDs are demonstrated to be excellent probes for high contrast bioimaging and biosensing applications. Here, we reporting the fabrication of free standing GQDs-PPy hybrid electrode films by electrochemical polymerization for supercapacitor device assembly. And also we reporting the bioconjugated quantum dots (QDs) provide a new class of biological labels for evaluating biomolecular signatures (biomarkers) on intact cells and tissue specimens. In particular, the use of multicolor QD probes in immunohistochemistry or cell biology studies of proteins and peptides is considered to be the most important and clinically relevant applications.