Rifat Kamarudheen

6 Questions 3 Answers 0 Followers

Questions related from Rifat Kamarudheen

Why are SU-8 photoresists baked before exposure to UV-light? Also, how important is to heat it after UV exposure?

I am wondering how important is the baking and development process in SU-8 photoresist polymerization.

06 March 2018 2,456 1 View

Is it possible to polymerize SU-8 in chloroform solution just by UV exposure, without the subsequent heating process?

Hello I'd like to know if it is possible to polymerize SU-8 in chloroform solution by exposing it to UV irradiation, without the subsequent heating Thanks

28 September 2017 714 0 View

Can anyone help me on how to redisperse COOH-PEGylated Au nanoparticles in Ethylene glycol?

I am interested in performing Fischer-esterification of COOH- terminated PEGylated gold nanoparticles and ethylene glycol, to study the self-assembly of nanoparticles. For this, I have managed to...

03 January 2017 7,801 2 View

Can anyone please suggest slow coupling agents for amide formation with deprotonated carboxylic acids?

Hi I am looking for a way to synthesize amide functionalized gold nanoparticles from mercaptocarboxylic acid functionalized gold nanoparticles. In order to keep these particles stable, the surface...

10 October 2016 6,243 1 View

How to model the interaction time of transiently formed dimer nano-particles (in liquid), w.r.t Brownian motion?

Nanoparticles dispersed in liquid are known to undergo Brownian motion. I feel that from time to time, two individual nanoparticles can come close enough to spaces of 1-3 nm and form transient...

28 September 2016 6,693 3 View

Can someone please help me on the functionalization of CTAB/citrate capped 40 nm gold spheres with mercaptocarboxylic acid groups?

I tried the round trip exchange method (by first exchanging the CTAB with dodecanethiol and further by mercaptoundecanoic acid), but my particles aggregated. The direct addition of...

21 June 2016 1,027 3 View