Phage-Directed Synthesis of Photoluminescent Zinc Oxide Nanoparticles under Benign Conditions

Żelechowska, Kamila; Karczewska-Golec, Joanna; Karczewski, Jakub; Łoś, Marcin; Kłonkowski, Andrzej M.; Węgrzyn, Grzegorz; Golec, Piotr

doi:10.1021/acs.bioconjchem.6b00196

Cited by 20 publications

(10 citation statements)

References 54 publications

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“…The plant extracts act as a capping agent for nanoparticles synthesis and are now valuable over other biological processes [13]. Biological process for nanoparticle synthesis using bacteria, fungi, enzymes, plants, algae, collagen, macromolecules and amino acid sequences has been proposed as eco-friendly alternatives to chemical and physical methods [14][15][16]. Green synthesis was acquiring high interest based on the rich content of active metabolites in plant [17].…”

Section: Introductionmentioning

confidence: 99%

Phytoextract-mediated synthesis of zinc oxide nanoparticles using aqueous leaves extract of Ipomoea pes-caprae (L).R.br revealing its biological properties and photocatalytic activity

Venkateasan

Prabakaran

Sujatha

2017

Nanotechnol. Environ. Eng.

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ZnO NPs were efficiently synthesized from the leaves extract of Ipomoea pes-caprae. The work focuses on phytochemical studies, phytomediated synthesis and characterization of ZnO NPs and its biological applications. Phytochemicals present in the extract may be responsible for reducing the metal salts into their respective nanosize particles. The UV-Vis spectrum infers the formation of NPs, with absorbed peak at 322 nm. The XRD pattern depicted significant peaks at 2h positions which confirmed the hexagonal wurtzite structure. FTIR spectrum (ZnO NPs) was recorded to identify the functional group of biomolecules involved in synthesis. ZnO NPs was measured in the range of 2-20 nm by FE-SEM and particle analyses. ZnO NPs in various concentrations revealed potential antioxidant (IC 50 -21.09) and antibacterial activities. Cytotoxicity activity by Vero cell line (MTT assay) was found to be significant. ZnO NPs exhibited concentration-dependent cytotoxic reactivity to Vero cells after 24-h contact. ZnO NPs exhibited efficient dye degradation of methylene blue in the presence of sunlight. Due to the versatile properties and applications of ZnO NPs, these were widely studied by user-friendly approaches being green, simple and economy.& Venugopal Sujatha

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Section: Introductionmentioning

confidence: 99%

Phytoextract-mediated synthesis of zinc oxide nanoparticles using aqueous leaves extract of Ipomoea pes-caprae (L).R.br revealing its biological properties and photocatalytic activity

Venkateasan

Prabakaran

Sujatha

2017

Nanotechnol. Environ. Eng.

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“…Moreover, we investigated the specificity of phage for binding the phase-change-based precursors by examining the suspension with phage after incorporating the last precursor (see the Experimental Section in the Supporting Information). The suspension with phage of high affinity to oxide-based materials has been shown to display higher absorbance values relative to the suspension with a low-oxide-affinity phage . By ultraviolet–visible (UV–vis) absorption spectroscopy, the suspension with E3 phage showed higher absorbance versus the suspension with WT phage for varying synthesis temperatures (Figure b).…”

Section: Resultsmentioning

confidence: 98%

“…Moreover, we investigated the specificity of phage for binding the phasechange-based precursors by examining the suspension with phage after incorporating the last precursor (see the Experimental Section in the Supporting The suspension with phage of high affinity to oxide-based materials has been shown to display higher absorbance values relative to the suspension with a low-oxide-affinity phage. 28 By ultraviolet−visible (UV−vis) absorption spectroscopy, the suspension with E3 phage showed higher absorbance versus the suspension with WT phage for varying synthesis temperatures (Figure 3b). The same result is similarly observed for alternate synthesis durations (Figure S4).…”

Section: Acs Applied Nano Materialsmentioning

confidence: 99%

Biological-Templating of a Segregating Binary Alloy for Nanowire-Like Phase-Change Materials and Memory

Loke

Clausen

Ohmura

et al. 2018

ACS Appl. Nano Mater.

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One of the best strategies for achieving faster computers is to mitigate the millisecond-order time delays arising from the transfer and storage of information between silicon-and magnetic-based memories. Segregating-binaryalloy (SBA)-type phase-change materials (PCMs), such as gallium antimonide-based systems, can store information on 10 ns time scales by using a single memory structure; however, these materials are hindered by the high consumption of energies and undergo elemental segregation around 620 K. Nanowire-like PCMs can achieve low-energy consumption but are often synthesized by vapor−liquid−solid methods above 720 K, which would cause irreversible corruption of SBA-based PCMs. Here we control the morphology, composition, and functionality of SBA-type germanium− tin oxide systems using template-driven nucleation that leverages the electrostatic-binding specificity of the M13 bacteriophage surface. A wirelike PCM was achieved, with controllable and reliable phase-changing signatures, capable of tens of nanoseconds switching times. This approach addresses some of the critical material compositional and structural constraints that currently diminish the utility of PCMs in universal memory systems.

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“…Some of the biomolecules used in ZnO synthesis include gelatin, polyethylene glycol (PEG), , DNA, silk, albumen, urease, amino acids, ,, peptides, polyamines, cyclodextrin, egg-shell membranes, palm olein, arabic gum, , bacteria, , and viruses. − As shown in Figure , these biomolecules do not only interact with ZnO and form hybrid materials but also influence, in some instances, Zn(OH) 2 and ZnO forming systems either by catalyzing ZnO formation, ,− causing the stabilization of intermediate phases thereby inhibiting ZnO formation ,− and/or by, in some cases, also modifying ZnO morphology. ,,,,,,,,− Artificial ZnO-binding peptides (ZnO-BPs) identified using either CSD or PD libraries have particularly shown great potential and versatility in their ability to affect ZnO formation. There is growing interest in understanding ZnO-ZnO-BP interaction mechanisms, the consequences of such interactions, and possible applications that can be developed exploiting such interactions. ,,,− ,− …”

Section: Znomentioning

confidence: 99%

Interactions between Metal Oxides and Biomolecules: from Fundamental Understanding to Applications

et al. 2018

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Metallo-oxide (MO)-based bioinorganic nanocomposites promise unique structures, physicochemical properties, and novel biochemical functionalities, and within the past decade, investment in research on materials such as ZnO, TiO 2 , SiO 2 , and GeO 2 has significantly increased. Besides traditional approaches, the synthesis, shaping, structural patterning, and postprocessing chemical functionalization of the materials surface is inspired by strategies which mimic processes in nature. Would such materials deliver new technologies? Answering this question requires the merging of historical knowledge and current research from different fields of science. Practically, we need an effective defragmentation of the research area. From our perspective, the superficial accounting of material properties, chemistry of the surfaces, and the behavior of biomolecules next to such surfaces is a problem. This is particularly of concern when we wish to bridge between technologies in vitro and biotechnologies in vivo. Further, besides the potential practical technological efficiency and advantages such materials might exhibit, we have to consider the wider long-term implications of material stability and toxicity. In this contribution, we present a critical review of recent advances in the chemistry and engineering of MO-based biocomposites, highlighting the role of interactions at the interface and the techniques by which these can be studied. At the end of the article, we outline the challenges which hamper progress in research and extrapolate to developing and promising directions including additive manufacturing and synthetic biology that could benefit from molecular level understanding of interactions occurring between inanimate (abiotic) and living (biotic) materials.

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Phage-Directed Synthesis of Photoluminescent Zinc Oxide Nanoparticles under Benign Conditions

Cited by 20 publications

References 54 publications

Phytoextract-mediated synthesis of zinc oxide nanoparticles using aqueous leaves extract of Ipomoea pes-caprae (L).R.br revealing its biological properties and photocatalytic activity

Phytoextract-mediated synthesis of zinc oxide nanoparticles using aqueous leaves extract of Ipomoea pes-caprae (L).R.br revealing its biological properties and photocatalytic activity

Biological-Templating of a Segregating Binary Alloy for Nanowire-Like Phase-Change Materials and Memory

Interactions between Metal Oxides and Biomolecules: from Fundamental Understanding to Applications

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