Is that possible to do an impedance measurement without FRA module?

One of my colleagues said, "the impedance you can measure with the three electrodes and with the specific sequence varying the frequency" Is it possible to configure the potenciostat without the...

21 February 2021 418 2 View

Dear fellows, what models are there available for water stable isotopes in the vadose zone?

I'm aware of Hydrus and Netpath, but are there others? I am highly interested in water stable isotopes in variably saturated and non-equilibrium flow (double porosity/permeability). Any hints...

21 October 2020 9,395 2 View

How to prevent cancer spheroid aggregation in culture?

I'm trying to grow PDX-derived cells from a SCCOHT model and I need them to survive short-term (7-14days) ex vivo After tumor digestion I platted 7,000,000 cells in a 10cm ULA dish In the...

26 February 2020 1,401 4 View

WHAT ARE THE RISKS in INDUSTRY 4.0?

22 August 2019 5,869 14 View

What is the best Finite Element Method (FEM) software for Shape Memory Alloy (SMA) simulations?

ANSYS, ABAQUS, COMSOL, etc?

19 May 2019 204 13 View

I made a saline solution of NaCl 0,9% andajusted the pH to 11 with NaOH. After 3 months I read the Ph and it had come down to 8. Does anyone know why?

I've also made a saline solution of NaCl 0,9% pH 9 and after 3 months it came down to pH 5. I don't understand why the pH came so drastcally down. I tested for any contamination and the results...

17 December 2018 8,793 3 View

I would like to talk to someone who extracts RNA from ganglion optics in crustaceans?

I'm trying to extract the RNA from the shrimp optical ganglion.

18 October 2018 2,959 1 View

Can you help me understand an inconsistency between copy-number variation of a gene and its expression?

Hi fellow scientists, I am researching a gene in Enterococcus faecalis, classified in two groups: 1) Penicillin-sensitive/ampicillin-sensitive (Control) and; 2)...

17 September 2018 9,809 4 View

Dear fellows, do you know any methods for deriving discharge baseflow constants from groundwater level timeseries?

I am aware of many methods for estimating base-flow recession constants from discharge (due to spring outlets) hydrographs. Unfortunately, in my study case there is no discharge contributing to...

04 June 2018 1,483 3 View

Why the current backward is higher than the forward?

Hi, does anyone knows why my CV in KOH 1M and EtOH 1M of Palladium in graphene oxide the current forward is lower than the current backward? It should be the opposit, or am i wrong? In the...

05 April 2018 1,687 1 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

Sutter electrode holder leaking after applying positive pressure. How to fix?

I am using a Sutter electrode holder for my patch clamp experiments, but I'm having trouble keeping positive pressure inside my electrode due to a leak out of the back of the holder. I have added...

02 March 2021 5,829 1 View

What thickness need for ITO to use as conductive layer?

I want to do RF sputtering of ITO on glass substrate using magnetron sputtering. what thickness do i need to make it good conductive layer to use it for PSC. Moreover, whats about thickness of...

01 March 2021 395 3 View

Adherance of Polyaniline coating over stainless steel?

Is the electropolymerisation of polyaniline coating over stainless steel (SS) via Cyclic voltammetry technique is really adherant? Else how to improve the adhesion of the coating, whether any...

01 March 2021 8,220 2 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...

28 February 2021 4,851 8 View

Why is my platinum counter electrode getting dirty during electrodeposition?

I am conducting anodic electrodeposition of MnO2 onto a stainless steel substrate, using a platinum strip as a counter electrode. This is done galvanostatically, with the current held between 5...

27 February 2021 1,829 3 View

How does charge on working electrode changes with rising potential?

During performing CV of a GCE or modified GCE, we rise the potential in the first half of the cycle and reduce it in reverse half. During the first half, what is the nature of charge on GCE or...

25 February 2021 7,994 3 View

Why there are two peaks while using the mie plot of Silver nanoparticle?

Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...

25 February 2021 7,493 6 View

How to troubleshoot Electrochromic Films and Electrochromic Devices?

I am trying to characterize an electrochromic system. The system uses ITO electrodes on glass, WO3 as the electrochromic film, and NiO as the ion storage layer. When I deposit NiO and WO3 and...

23 February 2021 9,592 2 View