What is the reason for cyclic voltagram shift to the right then to the left as shown in the attached figure ?

screen printed carbon electrode was characterized using 5 mM Ferricyanide/ 5mM Ferrocyanide with 0.1 M KCL , with scan rate from 10 to 100 mV/s vs Ag/AgCl , why the shift go to the right then to...

03 April 2019 8,806 6 View

How to modify screen printed electrode with AuNPs using thiosalicylic acid ?

I have gold nanoparticles suspension in citrate buffer and i want to modify the WE of screen printed electrode with is particles using thiosalicylic acid , if any one faced similar work, please...

03 April 2019 1,779 3 View

How to deposit gold nanoparticle onto (commercial) disposable screen printed carbon?

i have carbon screen printed electrode and gold nano particles suspension in citrate buffer, how to deposit the particles on the electrode in a way to get uniform distribution?

02 March 2019 8,150 5 View

If i have protein amino acid sequence how to get the 3D structure?

i have amino acid sequence of protein and I am looking for a free tool can predict the 3d structure, also i have the aptamer of this protein and i want to know how they bind with each other ?

01 February 2019 508 6 View

How to perform an electrochemical deposition of gold nanoparticels suspension in citrate buffer on the working electrode of an electrochemical cell?

i have screen printed electrode and i want to deposit gold nanoparticels on the workig electrode , the particles suspension in citrate buffer. how to do that using electrochemistry?

01 February 2019 4,720 1 View

How should I deposit a mono layer of gold nanoparticles on a screen printed carbon electrode (purchased) using Langmuir?

How should I deposit a mono layer of gold nanoparticles (suspension in citrate buffer ) on a screen printed carbon electrode (purchased) using Langmuir?

31 December 2018 4,666 3 View

How to design read out circuit for electrochemical sensor?

hello, iam working on an electrochemical sensor, to detect protein biomarker using DNA prob, i want to design a read out circuit for my sensor, also i want to know what is the differantce between...

10 November 2018 3,954 3 View

What is the basic different between IDA and SPE?

Currently Iam working on amperometric biosensor using SPCE (screen printed carbon electrode) but I still confuse to figure out what is the different between this electrode with Interdigitated...

10 November 2018 9,608 2 View

What is the optimum dimensions for interdigitated amperometric biosensor?

what is the optimum dimensions for interdigitated amperometric Label-free biosensor( Length, width and separation) for detect protein bio-marker ? also what is the best chose for working...

09 October 2018 3,770 2 View

How to regenerate a SPE biosensor?

hello! iam working on a biosensor design, to detect her2 protein using single strand DNA BIORECEPTOR, i need buffer to unbind thiol-modified oligo from AuNP, also a buffer to unbind PROTEIN-DNA...

09 October 2018 844 2 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 4 View

Why can't make aluminum nitride film successfully by use sputter?

We use reactive sputtering process to make aluminum nitride film, and want to make c-axis aluminum nitride film on a silicon substrate, but the crystal orientation cannot be seen with...

03 March 2021 7,975 3 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

What solvent can I used for Paal Knorr reaction between 6-amino hexanoic acid and 2.5 hexanedione?

I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...

02 March 2021 4,443 2 View

How to polymerize TEOS?

I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...

02 March 2021 1,404 6 View

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

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01 March 2021 3,905 5 View