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Questions related from Varun Arora
I've done MRI imaging of iron oxide nanoparticles in phantom gels. The images are showing decreased signal intensities upon increasing the iron concentration, this is due to iron oxide being a...
16 December 2017 3,519 3 View
Hello, I have done MRI of iron oxide nanoparticles in phantom gels. Although I have got the signal intensities and related curves from the instrument (using Paravision software) and I have...
11 December 2017 5,577 2 View
I've seen FT-IR spectra of Iron oxide nanoparticles and in many of them peaks at 2854 and 2926 which corresponds to C-H stretching is coming, they haven't coated iron oxide with anything. Can...
08 April 2017 1,167 3 View
I'm trying to conjugate 7-amino 4-methylcoumarin (AMC) to nanoparticles with free carboxylate groups on the surface via amide bond formation, but the problem is that AMC is not soluble in water...
14 March 2017 9,689 2 View
Is there any way to visualize a fluorescent drug loaded inside the nanoparticles? I think confocal microscopy won't help due to the small size of the nanoparticles and TEM won't be useful too.
06 March 2017 1,775 2 View
I want to purify by sample by dialysis, is it possible to use 100% methanol or another other percentage ?
02 August 2016 9,104 7 View
I am trying to synthesize Aminated PEG (NH2-PEG-OCH3) using P-amino benzoic acid to replace the tosyl group on peg-tosylate via nucleophillic substitution reaction. I think both amine and...
30 July 2016 3,208 7 View
I'm trying to study release of curcumin from nanoparticles by using dialysis bags but the buffer solution outside the dialysis bag is colorless while inside there are particles and I did add...
07 May 2016 2,914 5 View
I'm trying to conjugate carboxylic groups terminated nanoparticles with amine terminated polyethylene glycol, I'm using EDC/NHS for the conjugation and DMF as the solvent. The particles after...
29 March 2016 7,008 6 View
I am trying to calculate size by fitting M vs H curve using langevin function, I know the langevin equation, but my query is we plot a curve between M/Ms vs H or meu.H/K.T? After fitting the curve...
01 December 2015 7,881 3 View
Does anyone know about maximum tolerable and safe concentration of magnesium administered intravenously?
16 December 2014 1,244 4 View