search Center For Nanotechnology And Bionanotechnology

Ambernath, India

search Center For Nanotechnology And Bionanotechnology

Ambernath, India
SEARCH FILTERS
Time filter
Source Type

Mishra N.,Nanotechnology Research Center | Das G.,Italian Institute of Technology | Ansaldo A.,Italian Institute of Technology | Genovese A.,Italian Institute of Technology | And 6 more authors.
Journal of Analytical and Applied Pyrolysis | Year: 2012

Waste polypropylene (PP) is used as precursor for synthesizing multi-walled carbon nanotubes (MWCNTs) by single stage chemical vapor deposition (CVD) method using nickel as catalyst. The pyrolytic degradation of PP to MWCNT was achieved by exposing the catalyst and precursor to temperature 600,700 and 800 °C under argon and hydrogen atmosphere for an hour. The resultant carbon was purified and characterized by XRD, Raman scattering, SEM, TEM and HRTEM. All the analysis confirmed the graphitic nature and multi-walled morphology of the CNT. Moreover the MWCNT was found to exhibit high transmittance to visible light up to 85% at 550 nm, comparable to that of typical ITO films (90%), suggesting that MWCNTs can be used for optoelectronic devices. The present work could be employed for synthesizing CNTs, having wide range of applications, and for environment protection as well since waste plastic is being used. © 2011 Elsevier B.V. All rights reserved.


Mishra N.,search Center For Nanotechnology And Bionanotechnology | Patra N.,Italian Institute of Technology | Pandey S.,search Center For Nanotechnology And Bionanotechnology | Salerno M.,Italian Institute of Technology | Sharon M.,search Center For Nanotechnology And Bionanotechnology
Journal of Thermal Analysis and Calorimetry | Year: 2014

Present research deals with the conversion of waste commodity plastics to valuable commercial product in the form of wax by pyrolysis. Optimization of both processes yield and produced wax quality was performed by means of a statistical tool originally proposed by G. Taguchi, using temperature, catalyst, carrier gas, and dwell time as the parameters. The obtained wax was characterized by Raman spectroscopy, differential scanning calorimetry, and thermogravimetric analysis. Yield of wax was found to be maximum when the parameters were 600 °C, Fe catalyst, nitrogen gas atmosphere, and 15 min time. However, stability of the wax was found to be optimum at 700 °C. Calorific value of the wax thus obtained was ̃43 MJ kg-1, which supports its suitability as fuels like other petroleum products. © Akadémiai Kiadó, Budapest, Hungary 2014.


Mewada A.,search Center For Nanotechnology And Bionanotechnology | Thakur M.,search Center For Nanotechnology And Bionanotechnology | Pandey S.,search Center For Nanotechnology And Bionanotechnology | Oza G.,search Center For Nanotechnology And Bionanotechnology | And 2 more authors.
Journal of Bionanoscience | Year: 2013

The biological synthesis of stable silver nanoparticles (SNPs) is reported using Azadirachta indica plant exudate (Neem gum). The SNPs were characterized by means of UV-Visible Spectroscopy, High Resolution Transmission Electron Microscopy and X-ray diffraction. The UV-visible spectra exhibited a sharp peak at 439 nm suggesting the formation of spherical nanoparticles. This was further confirmed by Transmission Electron Micrographs which displayed nanoparticles in the size range of 15-20 nm. The X-ray Diffraction of SNPs synthesized using neem gum exhibited 2θ values assigned to that of silver nano crystals. The SNPs showed anti-microbial activity against E. coli and S. aureus. Copyright © 2013 American Scientific Publishers. All rights reserved.


Pandey S.,search Center For Nanotechnology And Bionanotechnology | Mewada A.,search Center For Nanotechnology And Bionanotechnology | Oza G.,search Center For Nanotechnology And Bionanotechnology | Shah R.,search Center For Nanotechnology And Bionanotechnology | And 2 more authors.
Journal of Bionanoscience | Year: 2013

We report the novel biological method for the synthesis of environmentally benign nano-particles and its size dependent seperation using natural plant exudate of Azadirachta indica (Neem) gum as density gradient centrifugation. Three distinct layers were seen after centrifugation at 4000 rpm for 70 minutes. Spectral properties of each fraction revealed the morphological features of Gold nanoparticles (GNPs). Further studies of the morphology were done using Scanning Electron Microscopy. Supra-stable nanoparticles owing to negligible red shift after addition of approximately 18 M salt were observed in the solution after reduction of the gold ions at 100 °C. Also, Flocculation Parameter was found to increase with respect to the salt concentration. Less flocculation parameter is an indication of enhanced stability of the nanoparticles. Biocompatibility of the GNPs was studied using Mardin-Darby Canine Kidney cells (MDCK) cells and found to be extremely biocompatible. Copyright © 2013 American Scientific Publishers. Website © 2013 Publishing Technology.


Pandey S.,search Center For Nanotechnology And Bionanotechnology | Mewada A.,search Center For Nanotechnology And Bionanotechnology | Thakur M.,search Center For Nanotechnology And Bionanotechnology | Shah R.,search Center For Nanotechnology And Bionanotechnology | And 2 more authors.
Materials Science and Engineering C | Year: 2013

Use of biologically modified gold nanoparticles (GNPs) as molecular vehicle to ferry potential anti-cancer drug berberine hydrochloride (BHC) using folic acid (FA) as targeting molecule is reported in this work. A tropical fruit peel, Trapa bispinosa is used to fabricate highly monodispersed GNPs, passivated with essential functional groups which were used as linkers to attach FA and BHC via amide linkage. Flocculation Parameter (FP) of biologically synthesized GNPs was calculated under different salt concentrations which were found to be very ideal under a physiological condition. Various statistical models were used to find drug release profile out of which Higuchi was found to be the most ideal. GNP-FA-BHC complexes were found to be active against folic acid expressing HeLa cells. © 2013 Elsevier B.V.


Pandey S.,search Center For Nanotechnology And Bionanotechnology | Shah R.,search Center For Nanotechnology And Bionanotechnology | Mewada A.,search Center For Nanotechnology And Bionanotechnology | Thakur M.,search Center For Nanotechnology And Bionanotechnology | And 2 more authors.
Journal of Materials Science: Materials in Medicine | Year: 2013

Use of cysteamine hydrochloride (Cys-HCl) protected gold nanorods (GNRs) as efficient carrier of widely used anti-cancer drug doxorubicin using folic acid as navigational molecule is presented in this work. GNRs were found to have excellent drug loading capacity of >97 %. A detailed comprehension of in vitro drug release profile under ideal physiological condition was found to obey 1st order kinetics at pH 6.8, 5.3 and 7.2, an ideal milieu for drug delivery to solid tumours. © 2013 Springer Science+Business Media New York.

Loading search Center For Nanotechnology And Bionanotechnology collaborators
Loading search Center For Nanotechnology And Bionanotechnology collaborators