Recent advances in the synthesis of inorganic nano/microstructures using microbial biotemplates and their applications

Selvakumar, R.; Seethalakshmi, N.; Thavamani, P.; Naidu, Ravi; Megharaj, Mallavarapu

doi:10.1039/c4ra07903e

Cited by 86 publications

(40 citation statements)

References 116 publications

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“…Regarding the stability, the NPs are innoxious due to coating of biological molecules and hence, they are more biocompatible than the NPs prepared by chemical methods [3]. The biomolecules present in the extract of plants act as stabilizing agents in the formation of NPs [4,5].…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of ZnO nanoparticles using Jacaranda mimosifolia flowers extract: Synergistic antibacterial activity and molecular simulated facet specific adsorption studies

Sharma

Sabela

Kanchi

et al. 2016

Journal of Photochemistry and Photobiology B: Biology

151

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The naturally occurring biomolecules present in the plant extracts have been identified to play an active role in the single step formation of nanoparticles with varied morphologies and sizes which is greener and environmentally benign. In the present work, spherical zinc oxide nanoparticles (ZnO NPs) of 2-4nm size were synthesized using aqueous extract of fallen Jacaranda mimosifolia flowers (JMFs), treated as waste. The microwave assisted synthesis was completed successfully within 5min. Thereafter, phase identification, morphology and optical band gap of the synthesized ZnO NPs were done using X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM) and UV-Visible spectroscopy techniques. The composition of JMFs extract was analyzed by gas chromatography-mass spectrometry (GC-MS) and the ZnO NPs confirmation was further explored with fourier transform infrared spectroscopy (FTIR). The GC-MS results confirmed the presence of oleic acid which has high propensity of acting as a reducing and capping agent. The UV-Visible data suggested an optical band gap of 4.03eV for ZnO NPs indicating their small size due to quantum confinement. Further, facet specific adsorption of oleic acid on the surface of ZnO NPs was studied computationally to find out the impact of biomolecules in defining the shape and size of NPs. The viability of gram negative Escherichia coli and gram positive Enterococcus faecium bacteria was found to be 48% and 43%, respectively at high concentration of NPs.

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Section: Introductionmentioning

confidence: 99%

Biosynthesis of ZnO nanoparticles using Jacaranda mimosifolia flowers extract: Synergistic antibacterial activity and molecular simulated facet specific adsorption studies

Sharma

Sabela

Kanchi

et al. 2016

Journal of Photochemistry and Photobiology B: Biology

151

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“…26 Biotemplating approach is cost effective, less time consuming and environmental friendly as most of the biotemplates are from natural sources. 27 κ-carrageenan is one of the examples of biological structures that comes from the family of linear sulphated polysachharide and are extracted from red edible seaweeds. 28 The carrageenan also acts effectively to control the size and shape of the nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Visible Light Photocatalytic Activity of BiFeO3 Nanoparticles for Degradation of Methylene Blue

Azmy¹,

Razuki²,

Aziz³

et al. 2017

JPS

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“…In recent years, advancement of considerable research in the synthesis of metal chalcogenide nanostructures has emerged due to their potential applications in various fields of science and technology [1][2][3][4]. The chalcogenide nanoparticles have received attention due to their size-dependent optical properties [5] in addition to other physical and chemical properties [6] as a consequence of the quantum size effect and surface effect [7,8].…”

Section: Introductionmentioning

confidence: 99%

Sacrificial template synthesis and characterization of photoluminescent silver sulfide nanochains

et al. 2015

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Branched nanochains of silver sulfide (Ag 2 S) have been synthesized by using silver nanochains as templates by a chemical solution route. The synthesized nanochains were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, particle size by dynamic light scattering technique, and photoluminescence studies. In a series of comparative experiments with varying concentration of reactants, products having same structure and morphology were obtained. The size of the synthesized nanoparticles was found in range of 30-60 nm. Ag 2 S nanoparticles produce characteristic blue-green emission at 480 and 520 nm when excited at 378 nm. Graphical abstract

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Recent advances in the synthesis of inorganic nano/microstructures using microbial biotemplates and their applications

Abstract: Microbial biotemplates for synthesizing inorganic nanostructures of defined morphology and size.

Cited by 86 publications

References 116 publications

Biosynthesis of ZnO nanoparticles using Jacaranda mimosifolia flowers extract: Synergistic antibacterial activity and molecular simulated facet specific adsorption studies

Biosynthesis of ZnO nanoparticles using Jacaranda mimosifolia flowers extract: Synergistic antibacterial activity and molecular simulated facet specific adsorption studies

Visible Light Photocatalytic Activity of BiFeO3 Nanoparticles for Degradation of Methylene Blue

Sacrificial template synthesis and characterization of photoluminescent silver sulfide nanochains

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