Press Release on Nanoparticles Research: September-2018

Nanoparticles derived from tea leaves destroy lung cancer cells: Quantum dots have great potential

Nanoparticles derived from tea leaves inhibit the expansion of carcinoma cells, destroying up to eighty % of them, a new analysis has shown. The team created the invention whereas they were testing out a replacement methodology of manufacturing a kind of nanoparticle known as quantum dots. This area unit} little particles that measure lower than ten nanometers. a person’s hair is forty,000 nanometers thick. [1]

Biosynthesis of Selenium Nanoparticles by a Heavy Metal-Resistant Bacterium Stenotrophomonas sp. EGS12

Production of atomic number 34 nanoparticles (SNPs) by chemical approaches is expensive and environmentally venturous, whereas biological ways, particularly those victimization microorganisms, will avoid these disadvantages. during this study, fast biogenic synthesis of SNPs by an important metal-resistant bacteria Stenotrophomonas sp., strain EGS12 was investigated. SNPs were characterized by transmission microscopy (TEM), scanning microscopy (SEM), and energy-dispersive X-ray spectrum analysis (EDX). TEM and SEM analysis showed that the SNPs were spherical and ranged from a hundred to two hundred nm in size. EDX incontestable that the SNPs contained C, Se, O, P, and S, and therefore the content of Se was thirty two.64%. The mechanism of SNPs biogenic synthesis by this strain was conjointly investigated. [2]

MODELING APPROACH OF TRANSCATHETER ARTERIAL DELIVERY OF DRUG-LOADED MAGNETIC NANOPARTICLES

To enhance locoregional therapies for carcinoma treatment, we have a tendency to propose during this study a mathematical model to optimize the transcatheter blood vessel delivery of therapeutic agents. to maximise the result of the treatment and minimize adverse effects on the patient, completely different mathematical models of the growth are thought-about during this study to search out the best variety of the therapeutic drug-loaded magnetic nanoparticles to be administered. 3 forms of medical aid models are thought-about, e.g. growing inhibition of medical aid, therapy, and therapy. [3]

Bacillus mojavensis BTCB15-Mediated Synthesis of Silver Nanoparticles with Mosquito Larvicidal Activity Against Vector-Borne Diseases

Microbial synthesis of silver nanoparticles may be a biocompatible and useful methodology. we have a tendency to synthesized silver nanoparticles from Bacillus mojavensis BTCB15 as a nanocide against mosquito, Anopheles stephensi, and yellow-fever mosquito larvae, necessary vectors of sickness. The shaped silver nanoparticles (6–48 nm) peaked at 382 nm within the ultraviolet-visible spectrum, and Fouriertransform infrared spectroscopic analysis disclosed aminoalkane, carboxylic, and organic compound teams. the five hundred and ninetieth deadly concentrations against third-instar larvae of the 3 species were zero.80, 0.75, and 1.2 ppm, and 0.80, 0.67, and 0.86 ppm, severally. [4]

Synthesis and Characterization of SiO2 Nanoparticles by Sol-Gel Process and Its Degradation of Methylene Blue

Nanomaterials square measure used for the miniaturization of the explicit device. however new era of technology demands a less expensive and additional industrial technique to supply wonderful material particularly silicon oxide. the current work deals with the sol-gel synthesis of SiO2 material and additionally provides a basic understanding of the result of oxidation temperature on the expansion of SiO2 by chemical reaction of TEOS with fermentation alcohol, deionized water and catalyst mixture. The properties of ensuring materials were characterized by scanning microscopy (SEM), diffraction (XRD), AFM and optical properties through UV-visible spectroscopic analysis and pic Luminescence (PL). The XRD study of pure SiO2 with oxidation temperature at 300ºC shows well crystalline characteristics and having a hexangular crystal structure. SEM results show obtained silicon dioxide particles were having a spherical morphology. the correct temperature the PL intensity was reduced and therefore the form of the spectrum slightly split into sharp peaks. UV-visible absorbance spectra of the silicon dioxide samples having wide bandgap showing absorbance within the immoderate violet region. The degradation of stain was chosen as a take a look at reaction [5]

Reference

[1] Nanoparticles derived from tea leaves destroy lung cancer cells: Quantum dots have great potential

Date: May 21, 2018, Source: Swansea University (web link)

[2] Biosynthesis of Selenium Nanoparticles by a Heavy Metal-Resistant Bacterium Stenotrophomonas sp. EGS12

Yuan Z, Yong J, Zhou H, Wu Y. Biosynthesis of Selenium Nanoparticles by a Heavy Metal-Resistant Bacterium Stenotrophomonas sp. EGS12. Nanoscience and Nanotechnology Letters. 2018 Jul 1;10(7):982-7. (web link)

[3] MODELING APPROACH OF TRANSCATHETER ARTERIAL DELIVERY OF DRUG-LOADED MAGNETIC NANOPARTICLES

Mellal L, Folio D, Belharet K, Ferreira A. MODELING APPROACH OF TRANSCATHETER ARTERIAL DELIVERY OF DRUG-LOADED MAGNETIC NANOPARTICLES. (web link)

[4] Bacillus mojavensis BTCB15-Mediated Synthesis of Silver Nanoparticles with Mosquito Larvicidal Activity Against Vector-Borne Diseases

Iftikhar S, Iqtedar M, Akhtar MS, Abdullah R, Kaleem A, Aihetasham A, Chaudhry A, Naz S, Sharif S. Bacillus mojavensis BTCB15-Mediated Synthesis of Silver Nanoparticles with Mosquito Larvicidal Activity Against Vector-Borne Diseases. Nanoscience and Nanotechnology Letters. 2018 Jul 1;10(7):943-9. (web link)

[5] Synthesis and Characterization of SiO2 Nanoparticles by Sol-Gel Process and Its Degradation of Methylene Blue

Ruchi Nandanwar1, Purnima Singh1 and Fozia Z. Haque2*

1Department of Physics, Sarojini Naidu Govt Girls P.G. (Autonomous) College, Barkatullah University, Bhopal 462016, Madhya Pradesh, India.

2Optical Nanomaterials Lab, Department of Physics, Maulana Azad National Institute of Technology, Bhopal, Madhya Pradesh, India. (web link)

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