Vishnu Sankar

14 Questions 28 Answers 0 Followers

Questions related from Vishnu Sankar

Is it possible to make activated carbon from natural source by normal calcination (without inert atmosphere)?

I am fabricating activated carbon from biowaste like peanut shell for supercapacitor applications. Literature shows that all calcination are doing under inert atmosphere and not normal...

09 October 2021 8,195 8 View

What is the general frequency range (initial and Final) for Electrochemical impedance spectroscopy (EIS) with screen printed carbon electrode and FTO?

I am working with screen printed carbon electrode and FTO coated glass electrodes for sensor studies. My electrolyte is PBS solution (pH=7). Please discuss what are the initial and final frequency...

20 July 2021 9,291 4 View

How to select a suitable polymer and filler material to make nanocomposite for biosensor applications?

I would like to fabricate a nanosensor for sensing application of biological molecules like cholestrol, uric acid etc Please discuss how can I select a suitable polymer and the nanofiller (two...

10 March 2021 2,779 6 View

What are the natural products having good anticancer or antiviral activity but limitations or side effects on oral administration?

There are several phytochemicals and natural products reported for having good anticancer or antiviral activity.. but problems like low solubility and degradation on first pass metabolism make...

09 November 2019 1,630 16 View

Which are the widely reported natural products/drug molecules having anti-HIV activity?

Several natural products have reported for anti-HIV activity..please share some of them and drug molecules with its limitations in terms of bioavailability and side effects

08 November 2019 7,744 4 View

What are the side effects and limitations of Tetrahydrocannabinol(THC) regarding it's oral administration?

THC is reported for its excellent anticancer activity..please share your opinion about its limitations for administering through oral route

08 November 2019 681 3 View

What are the gap and future perspectives of transdermal drug delivery research using biomaterial patches?

Transdermal drug delivery have lots of application with limitations.. biopolymers like chitosan are used to make transdermal patches.. please discuss the gap of the research and future possibilities

16 October 2019 7,885 0 View

Electrodeposition of functionalized mutiwalled carbon nanotubes

I have prepared acid functionalized mutiwalled carbon nanotube through chemical method..how can I deposit these multiwalled carbon nanotubes on FTO electrode (or any other working electrode)...

01 January 1970 7,274 3 View

Methanol oxidation reaction for DMFC using metal nanoparticles- Procedure

Direct methanol fuel cell involves oxidation of Methanol in alkaline or acid medium. what is the correct procedure to do the cyclic voltametry studies (CV) for the oxidation of methanol using...

01 January 1970 2,775 1 View

Electrodeposition of gold nanoparticle from gold chloride

I'm doing electrodeposition of gold nanoparticle from HAuCl4 on ITO electrode. Initially I deposited my polymer on the electrode..I want to deposit gold on the top layer.. please discuss the...

01 January 1970 4,351 8 View

Removal of high noise in using Scrren printed carbon electrode for electrochemical studies

I am using screen printed carbon electrode (scpe) for cyclic voltammetry in my sensing studies. The electrolyte is PBS solution (pH=7). I got the CV for bare SCPE without much noise but after...

01 January 1970 4,440 5 View

Discrepancy between antimicrobial action and IC50 value

I have studied the antioxidant activity of my three samples (tungsten disulfide) prepared solvothermal by changing the solvent alone. It seems that % inhibition is more for the sample2, but its...

01 January 1970 9,602 3 View

Photodegradation of dye

I have done photodegradation study for my catalyst using Rhodamine B. The amount of catalyst and dye was 0.05g and 0.05milliMolar respectively. But the UV-Vis spectra is not coming in proper way...

01 January 1970 6,689 8 View

Graphitic carbon nitride

Dear all, I have synthesized graphitic carbon nitride through pyrolysis of melamine. Heating 400 degree Celsius for four hours. But the color of product is off white instead of pale yellow I have...

01 January 1970 3,097 6 View