Role of actinomycetes in bioactive and nanoparticle synthesis

2019 ◽  
pp. 163-182
Author(s):  
Akanksha Gupta ◽  
Divya Singh ◽  
Sandeep Kumar Singh ◽  
Vipin Kumar Singh ◽  
Anand Vikram Singh ◽  
...  
Keyword(s):  
Nanoparticle Synthesis

scholarly journals Aqueous-based Binary Sulfide Nanoparticle Inks for Cu2ZnSnS4 Thin Films Stabilized with Tin(IV) Chalcogenide Complexes

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1382
Author(s):  
Han Wang ◽  
Amrita Yasin ◽  
Nathaniel Quitoriano ◽  
George Demopoulos
Keyword(s):  
Thin Films ◽  
Nanoparticle Synthesis ◽  
Economic Feasibility ◽  
Organic Ligands ◽  
Sulfur Vapor ◽  
Optical And Electronic Properties ◽  
Photovoltaic Applications ◽  
Deposition Processes ◽  
Czts Thin Films

Cu2ZnSnS4(CZTS) is a promising semiconductor material for photovoltaic applications,with excellent optical and electronic properties while boasting a nontoxic, inexpensive, andabundant elemental composition. Previous high‐quality CZTS thin films often required eithervacuum‐based deposition processes or the use of organic ligands/solvents for ink formulation,which are associated with various issues regarding performance or economic feasibility. To addressthese issues, an alternative method for depositing CZTS thin films using an aqueous‐basednanoparticle suspension is demonstrated in this work. Nanoparticles of constituent binary sulfides(CuxS and ZnS) are stabilized in an ink using tin(IV)‐based, metal chalcogenide complexes such as[Sn2S6]4‐. This research paper provides a systematic study of the nanoparticle synthesis and inkformulation via the enabling role of the tin chalcogenide complexing power, the deposition of highqualityCZTS thin films via spin coating and annealing under sulfur vapor atmosphere, theirstructural characterization in terms of nanocrystal phase, morphology, microstructure, anddensification, and their resultant optoelectronic properties.

A study of the role of the solvent during magnetite nanoparticle synthesis: tuning size, shape and self-assembly

RSC Advances ◽  
2012 ◽  
Vol 2 (21) ◽  
pp. 8027 ◽  
Author(s):  
Fraser J. Douglas ◽  
Donald A. MacLaren ◽  
Mark Murrie
Keyword(s):  
Self Assembly ◽  
Nanoparticle Synthesis ◽  
Magnetite Nanoparticle

Synthesis and Characterization of Nanoparticles and Nanocrystalline Functional Films

2010 ◽  
Vol 636-637 ◽  
pp. 709-713
Author(s):  
Raj K. Thareja ◽  
A. Mohanta ◽  
D. Yadav ◽  
A. Kushwaha
Keyword(s):  
Plasma Plume ◽  
Ambient Pressure ◽  
Nanoparticle Synthesis ◽  
Electromagnetic Spectrum ◽  
Ambient Atmosphere ◽  
Nitrogen Gas ◽  
Charge Coupled Device ◽  
Intensified Charge Coupled Device

This work reports on spectroscopic investigations of interaction of an expanding laser ablated plume of aluminum, zinc, graphite with ambient atmosphere of oxygen and nitrogen gas and the formation of nitrides and oxides. The ambient pressure and fluence dependence on the reactive process occurring in the ablated plume responsible for formation of oxides and nitrides is discussed. Fast photography/imaging technique using intensified charge coupled device (ICCD) is gaining importance as a diagnostic tool for understanding the dynamics of the expanding plasma plume and the gas phase nanoparticle synthesis, thus providing a novel way to understand the transportation of nanoparticles and of control of particle size. Two dimensional images of the expanding plasma plume were captured using ICCD to understand the role of vapor and shock temperature. A comprehensive study done on oxide and nitrides films using pulsed laser deposition technique for possible laser oscillations in UV region of electromagnetic spectrum is presented.

scholarly journals The role of nanoparticle size and ligand coverage in size focusing of colloidal metal nanoparticles

2019 ◽  
Vol 1 (10) ◽  
pp. 4052-4066 ◽  
Author(s):  
Saeed Mozaffari ◽  
Wenhui Li ◽  
Mudit Dixit ◽  
Soenke Seifert ◽  
Byeongdu Lee ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Nanoparticle Synthesis ◽  
Population Balance ◽  
Nanoparticle Size ◽  
Population Balance Modeling ◽  
Pd Nanoparticle ◽  
Colloidal Metal

In situ SAXS and population balance modeling (PBM) are used to discover the mechanism(s) of size focusing during Pd nanoparticle synthesis.

Understanding the Role of Nanoparticle Synthesis on Their Underlying Electrocatalytic Activity

2008 ◽  
Vol 112 (11) ◽  
pp. 4327-4332 ◽  
Author(s):  
Han-Pu Liang ◽  
Timothy G. J. Jones ◽  
Nathan S. Lawrence ◽  
Li Jiang ◽  
Jonathan S. Barnard
Keyword(s):  
Electrocatalytic Activity ◽  
Nanoparticle Synthesis

scholarly journals Role of Content Analysis in Improving the Curation of Experimental Data

2020 ◽  
Vol 15 (1) ◽  
pp. 14
Author(s):  
João Daniel Aguiar Castro ◽  
Cristiana Landeira ◽  
João Rocha da Silva ◽  
Cristina Ribeiro
Keyword(s):  
Content Analysis ◽  
Nanoparticle Synthesis ◽  
High Rate ◽  
Sustainable Chemistry ◽  
Scientific Publications ◽  
Photovoltaic Generation ◽  
Domain Specific ◽  
Research Data Management ◽  
Sound Communication

As researchers are increasingly seeking tools and specialized support to perform research data management activities, the collaboration with data curators can be fruitful. Yet, establishing a timely collaboration between researchers and data curators, grounded in sound communication, is often demanding. In this paper we propose manual content analysis as an approach to streamline the data curator workflow. With content analysis curators can obtain domain-specific concepts used to describe experimental configurations in scientific publications, to make it easier for researchers to understand the notion of metadata and for the development of metadata tools. We present three case studies from experimental domains, one related to sustainable chemistry, one to photovoltaic generation and another to nanoparticle synthesis. The curator started by performing content analysis in research publications, proceeded to create a metadata template based on the extracted concepts, and then interacted with researchers. The approach was validated by the researchers with a high rate of accepted concepts, 84 per cent. Researchers also provide feedback on how to improve some proposed descriptors. Content analysis has the potential to be a practical, proactive task, which can be extended to multiple experimental domains and bridge the communication gap between curators and researchers. [This paper is a conference pre-print presented at IDCC 2020 after lightweight peer review.]

scholarly journals “Green” Nanotechnologies: Synthesis of Metal Nanoparticles Using Plants

Acta Naturae ◽  
2014 ◽  
Vol 6 (1) ◽  
pp. 35-44 ◽  
Author(s):  
V V Makarov ◽  
A. J. Love ◽  
O. V. Sinitsyna ◽  
S. S. Makarova ◽  
I. V. Yaminsky ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Plant Extracts ◽  
Nanoparticle Synthesis ◽  
Environmental Safety ◽  
Metal Nanoparticle ◽  
Factors Affecting ◽  
Viral Particles ◽  
Environmentally Safe ◽  
Effective Use

While metal nanoparticles are being increasingly used in many sectors of the economy, there is growing interest in the biological and environmental safety of their production. The main methods for nanoparticle production are chemical and physical approaches that are often costly and potentially harmful to the environment. The present review is devoted to the possibility of metal nanoparticle synthesis using plant extracts. This approach has been actively pursued in recent years as an alternative, efficient, inexpensive, and environmentally safe method for producing nanoparticles with specified properties. This review provides a detailed analysis of the various factors affecting the morphology, size, and yield of metal nanoparticles. The main focus is on the role of the natural plant biomolecules involved in the bioreduction of metal salts during the nanoparticle synthesis. Examples of effective use of exogenous biomatrices (peptides, proteins, and viral particles) to obtain nanoparticles in plant extracts are discussed.

Nanoparticles from Actinobacteria: A Potential Target to Antimicrobial Therapy

2019 ◽  
Vol 25 (24) ◽  
pp. 2626-2636 ◽  
Author(s):  
Palaniappan Sivasankar ◽  
Subramaniam Poongodi ◽  
Palaniappan Seedevi ◽  
Dharman Kalaimurugan ◽  
Murugesan Sivakumar ◽  
...  
Keyword(s):  
Global Warming ◽  
Antimicrobial Therapy ◽  
Nanoparticle Synthesis ◽  
Emerging Diseases ◽  
Review Article ◽  
Drug Resistant ◽  
Comprehensive Review ◽  
The Past ◽  
Frequent Use

Nanoparticles have gained significant importance in the past two decades, due to their multifaceted applications in the field of nanomedicine. As our ecosystems and habitats are changing due to global warming, many new diseases are emerging continuously. Treating these costs a lot of money and mostly ends up in failure. In addition, frequent use of antibiotics to control the emerging diseases has led the pathogens to develop resistance to antibiotics. Hence, the nanoparticles are targeted to treat such diseases instead of the costly antibiotics. In particular, the biosynthesized nanoparticles have received considerable attention due to their simple, eco-friendly and promising activity. To highlight, microbial mediated nanoparticles have been found to possess higher activity and thus have a promising role in antimicrobial therapy to fight against the emerging drug-resistant pathogens. In this context, this review article is aimed at highlight the role of nanoparticles in the field of nanomedicine and importance of actinobacteria in the nanoparticle synthesis and their need in antimicrobial therapy. This is a comprehensive review, focusing on the potential of actinobacteria-mediated nanoparticles in the field of nanomedicine.

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