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Published on: October 15, 2019
Biologically synthesized fluorescent CdS NPs encapsulated by PHB
Sureshbabu Ram Kumar Pandian1, Venkataraman Deepak, Kalimuthu Kalishwaralal
1Division of Molecular and Cellular Biology, Department of Biotechnology & Chemical Engineering, Kalasalingam University, Anand Nagar, Krishnankoil - 626 126, Tamil Nadu, India.
Enzyme and Microbial Technology
|November 25, 2011
Summary
This study demonstrates the green synthesis of fluorescent cadmium sulfide (CdS) nanoparticles using Brevibacterium casei SRKP2. Immobilizing these CdS nanoparticles in PHB nanoparticles preserves their fluorescence, showing potential for bio-based nanomaterials.
Area of Science:
- Nanotechnology
- Biotechnology
- Materials Science
Background:
- Green synthesis of nanoparticles offers an eco-friendly alternative to chemical methods.
- Cadmium sulfide (CdS) nanoparticles exhibit unique fluorescent properties.
- Polyhydroxybutyrate (PHB) is a biodegradable polymer suitable for nanoparticle encapsulation.
Purpose of the Study:
- To biologically synthesize fluorescent cadmium sulfide (CdS) nanoparticles.
- To immobilize the synthesized CdS nanoparticles within PHB nanoparticles.
- To characterize the CdS nanoparticles and their immobilization within PHB.
Main Methods:
- Utilized Brevibacterium casei SRKP2 for the biosynthesis of CdS nanoparticles.
- Characterized nanoparticles using electron microscopy and X-ray diffraction (XRD).
- Optimized synthesis conditions including pH, time, and precursor concentrations.
Main Results:
- Successfully synthesized CdS nanoparticles with sizes ranging from 10-30 nm.
- Optimized synthesis at pH 9 enhanced nanoparticle yield and fluorescence.
- Immobilization of CdS nanoparticles in PHB did not affect their fluorescent intensity.
Conclusions:
- Brevibacterium casei SRKP2 is a viable agent for green synthesis of fluorescent CdS nanoparticles.
- Immobilization in PHB nanoparticles is a promising strategy for stabilizing fluorescent CdS nanoparticles.
- The developed method offers a sustainable approach for producing functional nanomaterials.
