Silk-mediated synthesis and modification of photoluminescent ZnO nanoparticles

Han, Jie; Su, Huilan; Xu, Jian; Song, Weiqiang; Gu, Yu; Chen, Ying; Moon, Won‐Jin; Zhang, Di

doi:10.1007/s11051-012-0726-7

Cited by 22 publications

(19 citation statements)

References 30 publications

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“…Bio-inspired synthesis of ZnO nanoparticles has been achieved using environmentally and eco-friendly accepted systems. Several studies have been investigated the use of natural materials for ZnO nanoparticles synthesis such as DNA [12], silk [13], albumen [14], orange juice [15], pea starch [16], peptide structures [17] and etc. The use of nanoparticles derived from noble metals has spread in many areas involving medical fields, electronics, antibacterial textiles, etc.…”

Section: Introductionmentioning

confidence: 99%

“…The main objective of this research is to determine the effects of uncooked rice as a biotemplate on ZnO physico-chemical properties, particularly its morphology and surface properties. Due to easy controlling of the size, shape and water solubility of ZnO, then the biocompatibility and functionality of ZnO nanomaterials could be further improved by surface modification [13]. …”

Section: Introductionmentioning

confidence: 99%

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Hydrothermal synthesis of zinc oxide nanoparticles using rice as soft biotemplate

Ramimoghadam

Hussein

Taufiq‐Yap

2013

Chemistry Central Journal

128

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BackgroundRice as a renewable, abundant bio-resource with unique characteristics can be used as a bio-template to synthesize various functional nanomaterials. Therefore, the effect of uncooked rice flour as bio-template on physico-chemical properties, especially the morphology of zinc oxide nanostructures was investigated in this study.The ZnO particles were synthesized through hydrothermal-biotemplate method using zinc acetate-sodium hydroxide and uncooked rice flour at various ratios as precursors at 120°C for 18 hours.ResultsThe results indicate that rice as a bio-template can be used to modify the shape and size of zinc oxide particles. Different morphologies, namely flake-, flower-, rose-, star- and rod-like structures were obtained with particle size at micro- and nanometer range. Pore size and texture of the resulting zinc oxide particles were found to be template-dependent and the resulting specific surface area enhanced compared to the zinc oxide synthesized without rice under the same conditions. However, optical property particularly the band gap energy is generally quite similar.ConclusionPure zinc oxide crystals were successfully synthesized using rice flour as biotemplate at various ratios of zinc salt to rice. The size- and shape-controlled capability of rice to assemble the ZnO particles can be employed for further useful practical applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydrothermal synthesis of zinc oxide nanoparticles using rice as soft biotemplate

Ramimoghadam

Hussein

Taufiq‐Yap

2013

Chemistry Central Journal

128

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“…Some of them include L-cysteine, lysine [13-16], gelatin [17] and PEG [18], to name a few. Additionally, some biotemplates have been used for the synthesis of ZnO nanoparticles namely orange juice [19], albumen [20], cyclodextrin [21], egg-shell membrane [22], silk [23], peptide structures [24], DNA [25], pollen grain [26], wood [27], and different types of microorganisms [28-30]. In principle, the process of biotemplating can be described as seeking to either replicate the morphological characteristics and the functionality of a biological species or the use of biological structure to guide the assembly of inorganic materials [31], followed by removing of the template and finally forming a pure phase material with the required morphology.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of ZnO nanostructures using palm olein as biotemplate

Ramimoghadam

Hussein

Taufiq‐Yap

2013

Chemistry Central Journal

105

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BackgroundA green approach to synthesize nanomaterials using biotemplates has been subjected to intense research due to several advantages. Palm olein as a biotemplate offers the benefits of eco-friendliness, low-cost and scale-up for large scale production. Therefore, the effect of palm olein on morphology and surface properties of ZnO nanostructures were investigated.ResultsThe results indicate that palm olein as a biotemplate can be used to modify the shape and size of ZnO particles synthesized by hydrothermal method. Different morphology including flake-, flower- and three dimensional star-like structures were obtained. FTIR study indicated the reaction between carboxyl group of palm olein and zinc species had taken place. Specific surface area enhanced while no considerable change were observed in optical properties.ConclusionPhase-pure ZnO particles were successfully synthesized using palm olein as soft biotemplating agent by hydrothermal method. The physico-chemical properties of the resulting ZnO particles can be tuned using the ratio of palm olein to Zn cation.

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“…Nevertheless, those previously reported ZnO nanoparticles with various capping groups, including polyvinylpyrrolidone (PVP),22 oleic acid (OA) together with diethanolamine (DEA),23 polyethylene glycol methyl ether (PEGME),24 polymethylmethacrylate (PMMA),25 and polystyrene (PS),26 were not suitable for bioimaging. Some of them were insoluble or unstable in water, while others suffered from low luminescent efficiency or a single blue emission that could be covered by the autofluorescence of the cells 27. In 2008, our research group invented a new route, called two‐step polymerization for coating ZnO nanoparticles with a binary polymer shell that contains an internal layer of hydrophobic polyester and an external layer of hydrophilic polyether 28.…”

Section: Zno Nanoparticles For Bioimagingmentioning

confidence: 99%

ZnO Nanoparticles Applied to Bioimaging and Drug Delivery

2013

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The last decade has seen significant achievements in biomedical diagnosis and therapy at the levels of cells and molecules. Nanoparticles with luminescent or magnetic properties are used as detection probes and drug carriers, both in vitro and in vivo. ZnO nanoparticles, due to their good biocompatibility and low cost, have shown promising potential in bioimaging and drug delivery. The recent exciting progress on the biomedical applications of ZnO-based nanomaterials is reviewed here, along with discussions on the advantages and limitations of these advanced materials and suggestions for improving methods.

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Silk-mediated synthesis and modification of photoluminescent ZnO nanoparticles

Cited by 22 publications

References 30 publications

Hydrothermal synthesis of zinc oxide nanoparticles using rice as soft biotemplate

Hydrothermal synthesis of zinc oxide nanoparticles using rice as soft biotemplate

Synthesis and characterization of ZnO nanostructures using palm olein as biotemplate

ZnO Nanoparticles Applied to Bioimaging and Drug Delivery

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