141 results match your criteria: "Advanced Materials and Processes Research Institute[Affiliation]"

Slippery and Wear-Resistant Surfaces Enabled by Interface Engineered Graphene.

Nano Lett

February 2020

Department of Electrical and Computer Engineering , National University of Singapore, Singapore 117583 , Republic of Singapore.

Friction and wear remain the primary cause of mechanical energy dissipation and system failure. Recent studies reveal graphene as a powerful solid lubricant to combat friction and wear. Most of these studies have focused on nanoscale tribology and have been limited to a few specific surfaces.

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As a key type of promising thermoelectric (TE) material -type Tin Telluride (SnTe) vacuum evaporated thin films synthesized at room temperature (RT) on a glass substrate, report a significant enhancement in the figure of merit (ZT) value. The thicknesses of the nanostructured thin films were kept about 145 nm and 275 nm. High-resolution X-ray diffraction (HRXRD) outlines the polycrystalline nature in both thin films.

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In the present work, an electrochemical immunosensor has been fabricated for the detection of amyloid beta peptide (βA) based on a gold nanoparticle/nickel ferrite decorated graphene oxide-chitosan nanocomposite (Au/NiFeO@GO-Ch) modified glassy carbon electrode (GCE) as an effective sensing platform. βA has been analyzed as a potential biomarker for its application in Alzheimer's disease monitoring. The combination of highly conducting Au and NiFeO nanoparticles on two-dimensional GO nanosheets provides an excellent platform for sensitive and selective sensing applications.

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The biomedical demand of the nanomaterials is continuously increasing due to their wide range of applications in the field. However, before the implementation of these nanomaterials, toxicity assessment is essential for its safe usage. In the present study, the toxicity of carbon nanoparticles (CNPs) was investigated which was derived from candle soot and compared with commercially available multi-walled carbon nanotubes (CNTs) by using Drosophila melanogaster as a model system.

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Ti4wt%Al alloy foams of various porosities were prepared using milled and unmilled powders through space holder technique. Crystallographic and morphological change in milled powder compared to the unmilled one were also examined. Space holder content was varied to get foams of different porosities.

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Electrochemical detection of monosodium glutamate in foodstuffs based on Au@MoS/chitosan modified glassy carbon electrode.

Food Chem

March 2019

Analytical Chemistry Group, Chemical Sciences & Technology Division, CSIR-North East Institute of Science & Technology (CSIR-NEIST), Jorhat 785006, Assam, India; Academy of Scientific and Innovative Research, CSIR-NEIST Campus, Jorhat 785006, Assam, India; Microfluidics & MEMS Centre, CSIR-Advanced Materials and Processes Research Institute (CSIR-AMPRI), Bhopal 462026, MP, India. Electronic address:

We report an amperometric immunosensor for the detection of monosodium glutamate (MSG) using a glassy carbon electrode modified with gold nanoparticle decorated on a molybdenum disulfide/chitosan (Au@MoS/Ch) nanocomposite. In the present detection technique, Au@MoS/Ch was used as a conductive matrix and anti-glutamate antibody was immobilized on to its surface via carbodiimide coupling method. Chemical and morphological attributes of the various components of the immunosensor were confirmed by UV-vis spectroscopy, SEM, TEM and XRD analysis.

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Increasing counterfeiting of important data, currency, stamp papers, branded products etc., has become a major security threat which could lead to serious damage to the global economy. Consequences of such damage are compelling for researchers to develop new high-end security features to address full-proof solutions.

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Investigation of curcumin release from chitosan/cellulose micro crystals (CMC) antimicrobial films.

Int J Biol Macromol

August 2015

Polymer Research Laboratory, Department of Chemistry, Govt. Model Science College, Jabalpur, M.P. 482001, India.

Following the novel 'vapor induced phase inversion' (VIPI) method, we have prepared curcumin loaded chitosan/cellulose micro crystals composite films and characterized them by thermo gravimetric analysis (TGA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The equilibrium moisture absorption behavior of these films was investigated under different relative humidity (RH) environments and the data obtained was interpreted by the GAB isotherm model successfully. The films were also studied for their curcumin release behavior in the physiological fluid (PF) at 37 °C and the kinetic data obtained was best interpreted by Higuchi model.

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Biological macromolecules enriched resources are rapidly emerging as sustainable, cost effective and environmental friendly materials for several industrial applications. Among different biological macromolecules enriched resources, banana fibres are one of the unexplored high potential bio-resources. Compared to various natural fibres such as jute, coir, palm etc.

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The present study deals with the estimation of the anti-HIV activity (log1/C) of a large set of 107 HEPT analogues using molecular descriptors which are responsible for the anti-HIV activity. The study has been undertaken by three techniques MLR, ANN, and SVM. The MLR model fits the train set with R (2)=0.

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A simple and highly sensitive gas chromatographic method has been developed for the determination of low molecular weight short-chain aliphatic amines (SCAAs) after their simultaneous extraction and in-syringe derivatization with pentafluorobenzoyl chloride (PFBOC). Derivatization of the low molecular weight aliphatic amines in bicarbonate buffer of pH 10.5 with PFBOC was followed by immersed solvent microextraction.

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Withania Somnifera Dunal know as Ashwagandha belong Solanaceae family. It is extensively used in most of the Indian herbal pharmaceuticals and nutraceuticals. The current study, evaluate in vitro cytotoxicity in 50% ethanol extract of root, stem and leaves of Withania Somnifera against five human cancer cell lines of four different tissues i.

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During the hydrometallurgical extraction of zinc by electrowinning process, a hazardous solid waste called anode mud is generated. It contains large quantity of manganese oxides (55-80%) and lead dioxide (6-16%). Due to the presence of a large quantity of lead, the anode mud waste is considered hazardous and has to be disposed of in secure landfills, which is costly, wastes available manganese and valuable land resources.

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In India, about 435.98 MMT of agro-residues are produced every year, out of which 313.62 MMT are surplus.

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For the first time, single reverse microemulsion-assisted direct precipitation route has been successfully used to synthesize tetragonal zirconia nanoparticles in narrow size range. The synthesized powder was characterized using FT-IR, XRD and HRTEM techniques. The zirconia nanoparticles obtained were spherical in shape and has narrow particle size distribution in the range of 13-31nm and crystallite size in the range of 13-23nm.

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A simple and sensitive liquid chromatographic method has been developed for the determination of low molecular weight aliphatic amines after their pre-column derivatization with naphthalene-2,3-dicarboxaldehyde (NDA). Derivatization conditions, including the NDA concentration, reaction pH and reaction time have been investigated for method optimization. The chromatographic separation of five amines was performed on ABZ PLUS column using mobile phase of methanol-water (80:20, v/v) at a flow rate of 0.

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