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Eco-friendly synthesis of shrimp egg-derived carbon dots for fluorescent bioimaging

Paper ID Volume ID Publish Year Pages File Format Full-Text
23073 43415 2014 6 PDF Available
Title
Eco-friendly synthesis of shrimp egg-derived carbon dots for fluorescent bioimaging
Abstract

•We used Shrimp egg as a carbon source for the fabrication of fluorescent CDs.•AFM images show the SE-CDs are spherical and monodispersed on Si substrate.•SE-CDs exhibit good water solubility with no further surface modification required.•SE-CDs are highly biocompatible and efficiently taken up by cells.

Developing synthetic methods to produce carbon dots (CDs) using natural biomass or other readily available carbon sources are currently being explored. We describe a simple and green synthetic method for preparing fluorescent CDs by water extraction from heat-treated shrimp eggs (SE-CDs). The SE-CDs appeared spherical with an average size of 3.25 ± 1.06 nm. Elemental analysis indicate that the SE-CDs have functional groups such as C–OH, C–O–C, CO, and C–H on the surface which give rise to a series of emissive traps between π–π* states. SE-CDs also showed a broad emission range with excellent quantum yield of 18.5 ± 2.6%. In addition, when compared with commonly used traditional CdSe and CdTe nanocrystals, SE-CDs were bio-tolerable to cell at high doses (200 μg ml−1) in MTT assay. Thus, SE-CDs are very promising alternatives to semiconductor-based quantum dots for in vitro and in vivo bioimaging applications.

Keywords
Biomass; Carbon dot; Bioimaging; AFM; Biocompatible
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Eco-friendly synthesis of shrimp egg-derived carbon dots for fluorescent bioimaging
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Biotechnology - Volume 189, 10 November 2014, Pages 114–119
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us