Dinesh Kumar

ORCID: 0000-0001-6769-827X
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Research Areas
  • Advanced Photocatalysis Techniques
  • Graphene and Nanomaterials Applications
  • Nanoplatforms for cancer theranostics
  • Catalysis and Hydrodesulfurization Studies
  • Biodiesel Production and Applications
  • Mechanisms of cancer metastasis
  • Enzyme Catalysis and Immobilization
  • Graphene research and applications
  • Nanomaterials for catalytic reactions
  • Copper-based nanomaterials and applications
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Angiogenesis and VEGF in Cancer
  • Advanced Nanomaterials in Catalysis
  • Laser-Ablation Synthesis of Nanoparticles
  • Nanoparticle-Based Drug Delivery
  • Catalysis for Biomass Conversion
  • Bone Tissue Engineering Materials
  • Quantum Dots Synthesis And Properties
  • Carbon Nanotubes in Composites
  • Lubricants and Their Additives
  • Cancer-related Molecular Pathways
  • Supercapacitor Materials and Fabrication
  • ZnO doping and properties
  • Electrospun Nanofibers in Biomedical Applications
  • Adsorption and biosorption for pollutant removal

Jeonbuk National University
2015-2024

Punjabi University
2014-2023

Academy of Scientific and Innovative Research
2023

Institute of Himalayan Bioresource Technology
2023

Inha University
2023

Chitkara University
2023

University of Mumbai
2020-2022

Panjab University
2022

Central University of Gujarat
2022

Forest Research Institute
2021

A simple approach for growing porous electrochemically reduced graphene oxide (pErGO) networks on copper wire, modified with galvanostatically deposited foam is demonstrated. The as-prepared pErGO the wire are directly used to fabricate solid-state supercapacitor. pErGO-based supercapacitor can deliver a specific capacitance (Csp) as high 81±3 F g-1 at 0.5 polyvinyl alcohol/H3PO4 gel electrolyte. Csp per unit length and area calculated 40.5 mF cm-1 283.5 cm-2, respectively. shape of...

10.1038/s41598-017-18593-3 article EN cc-by Scientific Reports 2018-01-08

We report a strongly amplified photoacoustic (PA) performance of the new functional hybrid material composed reduced graphene oxide and gold nanorods. Due to excellent NIR light absorption properties coated nanorods (r-GO-AuNRs) highly efficient heat transfer process through layer, r-GO-AuNRs exhibit photothermal stability significantly higher amplitudes than those bare-AuNRs, nonreduced AuNRs (GO-AuNRs), or silica-coated AuNR, as demonstrated in both vitro vivo systems. The linear response...

10.1021/nn506516p article EN ACS Nano 2015-03-09

We report that reduced graphene-coated gold nanoparticles (r-GO-AuNPs) are excellent visible-light-responsive photocatalysts for the photoconversion of CO2 into formic acid (HCOOH). The wavelength-dependent quantum and chemical yields HCOOH shows a significant contribution plasmon-induced hot electrons photoconversion. Furthermore, presence state graphene layers critical parameters efficient because electron mobility graphene. With an selectivity toward (>90%), yield using r-GO-AuNPs is...

10.1021/acs.nanolett.5b04764 article EN Nano Letters 2016-02-08

Zinc-doped (0.25–7 wt %) calcium oxide (Zn/CaO) has been prepared in nanocrystalline form by a simple wet chemical method followed calcination up to 950 °C. The structural analysis investigated powder X-ray diffraction (XRD), whereas the surface morphology and average particle size of Zn/CaO were determined scanning electron transmission microscopic studies, respectively. catalytic activity toward transesterification cotton seed oil with methanol was found be function its temperature,...

10.1021/ef400594t article EN Energy & Fuels 2013-07-01

Methylene blue (MB) and rhodamine B dyes (RB) were degraded from water using zirconium oxide (ZrO2) oxide/graphene composites (ZrO2/GR) as photocatalyst. The photocatalytic efficiency was calculated absorption spectra obtained UV–visible spectroscopy. It has been observed that photodegradation time well increase with the concentration of catalyst up to a certain limit after which effect reversed. degradation studied function pH also. found more in alkaline medium than acidic medium....

10.1016/j.wsj.2016.04.001 article EN cc-by-nc-nd Water Science 2016-04-01

The present work demonstrates the application of nanocrystalline Li+ impregnated CaO as a heterogeneous catalyst for transesterification used cottonseed oil with higher amount moisture. Catalysts different alkali metal ions were prepared by wet impregnation method, and their basic strengths measured Hammett indicators maximum was found in case lithium carbonate CaO. Further characterization powder X-ray diffraction transmission electron microscopy studies supports formation nanosized...

10.1021/ef901318s article EN Energy & Fuels 2010-02-12

Plasmonic nanoparticle based nanotechnology plays a pivotal role in the recent advances biomedical applications. Along with biocompatibility and robust surface chemistry, tunable optical properties of visible near-infrared regions gold nanoparticles have attracted significant attention for wide range applications such as vitro biosensing, vivo imaging, drug delivery, tissue engineering. In this review, we focus on use plasmonic nanoparticles, which been developed to solve limitations current...

10.1039/c5tb01292a article EN Journal of Materials Chemistry B 2015-01-01

ABSTRACT The graphene oxide (GO) was prepared by sonication‐induced exfoliation from graphite oxide, which produced oxidation flakes with a modified Hummer's method. GO then treated hydrazine to obtain reduced (rGO). On the basis of characterization results, successfully rGO. Acrylonitrile–butadiene rubber (NBR)–GO and NBR–rGO composites were via solution‐mixing method, their various physical properties investigated. nanocomposite demonstrated higher curing efficiency change in torque...

10.1002/app.42457 article EN Journal of Applied Polymer Science 2015-06-06

Abstract This paper deals with a mathematical model describing the inward solidification of melt phase change material within container different geometrical configuration like slab, circular cylinder or sphere under most generalized boundary conditions. The thermal and physical properties solid are assumed to be identical. To solve this model, finite difference scheme is used convert problem into an initial value vector matrix form further, solving it using Legendre wavelet Galerkin method....

10.5560/zna.2014-0052 article EN Zeitschrift für Naturforschung A 2014-10-22

In this paper, we have studied heat transfer process in a continuously moving fin whose thermal conductivity, coefficient varies with temperature and surface emissivity wavelength. Heat is assumed to be power law type form where exponent represent different types of convection, nucleate boiling, condensation, radiation etc. The conductivity linear quadratic function temperature. Exact solution obtained case independent absence conduction parameter compared those by present method same up ten...

10.1016/j.jppr.2014.11.003 article EN cc-by-nc-nd Propulsion and Power Research 2014-12-01

Silver nanowires have been synthesized by the polyol process with ethylene glycol as a reducing agent and polyvinylpyrrolidone stabilizer, using microwave technique. Crystallographic, topographic, morphological characterizations of nanostructures studied via powder X-ray diffraction electron microscopy (Field Emission Scanning Electron Microscope) Transmission Microscope, respectively. Fourier Transform-Infrared Spectroscopy, UV–Vis absorption spectroscopy, Raman Thermogravometric analysis,...

10.1007/s13204-014-0386-2 article EN cc-by Applied Nanoscience 2014-12-09

A new one-pot reaction for the regioselective construction of a six-membered fused N-heterocyclic ring leading to isoquinolones under Pd/C–Cu catalysis is described.

10.1039/b617823e article EN Chemical Communications 2007-01-01

Radioactive isotope-labeled gold nanomaterials have potential biomedical applications. Here, we report the synthesis and characterization of PEGylated crushed shell-radioactive iodide-124-labeled core nanoballs (PEG-124I-Au@AuCBs) for in vivo tumor imaging applications through combined positron emission tomography Cerenkov luminescent (PET/CLI). PEG-124I-Au@AuCBs showed high stability sensitivity various pH solutions, serum, conditions were not toxic to tested cells. Combined PET/CLI clearly...

10.1186/s12951-018-0366-x article EN cc-by Journal of Nanobiotechnology 2018-04-18
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