Does the electrolyte need to be saturated with hydrogen for measuring the hydrogen evolution reaction (HER)?

In most cases of measuring the HER the electrolyte is saturated with H2. Similarly for the OER it is saturated with O2. But I have also seen papers that saturate the electrolyte with N2 or Ar....

18 November 2020 4,535 2 View

Panel of serum or plasma with antibodies to known pathogens?

Does anyone know of a panel of serum/plasma with antibodies to known pathogens such as Influenza A, HBV, HCB etc, that could be purchased for testing? or through ethics application to biobank?

03 September 2020 3,017 1 View

How can I calculate ddCt in my results (real-time PCR results)?

I'm analyzing the results of SYBR green realtime PCR, but I had difficulty in interpreting the results of one of the genes tested.. As shown below, there was no gene expression in the control...

02 June 2019 5,723 2 View

How do I calculate output of solar panels for a given area?

Hi, I'm a little unsure if I have the correct formula. I'm looking to calculate the potential maximum output for Photovoltaic material when I know the surface area. i.e. peak= Wm^2 x total area...

02 March 2019 9,949 4 View

Which statistical test(s) should be run with ordinal data?

The research has: 1 IV and 3 DV's. Likert scales used yielding scores of 1-5 on Behavioural Observational Scales (BOS). n=99 with each individual being scored on all 3 DV's. Total BOS=297. 99 BOS...

30 November 2018 8,807 4 View

Which statistical test(s) should be run with what kind of data (nominal, ordinal, etc)?

1 IV and 3 DV's. Likert scales used yielding scores of 1-5 on Behavioural Observational Scales (BOS). n=99 with each individual being scored on all 3 DV's. Total BOS=297. 99 BOS scored for each...

29 November 2018 6,231 4 View

Questions about drawing graphics from sequencing results.

I plan to carry out sequencing of a bacterial integron using random primer walking to identify the structure of internal genes.Is there a program on ncbi homepage that can draw graphics of gene...

23 July 2017 6,279 3 View

Does internal and external dysbiosis increase the risk of atopic disease?

14 February 2016 3,184 3 View

What is the number of mammalian cells required for phage display?

I am looking to do phage display using a mammalian cell line as the immobilised target and was wondering how many cells I need to use. I have seen a whole range in the literature, but a number of...

09 November 2014 939 4 View

Why is this GLM output giving p = 1?

01 January 1970 4,541 3 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

For modelling epoxy-based matrices (in composites), which model in ABAQUS is the most suitable, Concrete damaged plasticity or Drucker-Prager model?

I am working on developing a micromechanical FE model for predicting kink-band formation in UD composites. To model matrix plasticity, which model, out of Concrete Damaged Plasticity and...

28 February 2021 5,415 1 View

How to clean up TEM grid with plasma cleaner?

I need to clean the hydrocarbon contamination on the carbon substrate of TEM grid. However, I heard that substrate could be broken by the powerful plasma. My substrate is pure carbon, with ~3nm,...

23 February 2021 3,262 5 View

How to dissolve cross-linked Amberlite IRC120 H, hydrogen form resin?

Hello all, I have used Amberlite IRC120 H, hydrogen form acidic cation-exchange resin for the ion-exchange of waterglass [sodium silicate solution -- 40% Sodium silicate (mol ratio > 3.2)...

21 February 2021 5,614 3 View

Phenol-pH graphic?

We want to use phenol pH graphic to measure the pH of mediums before and after inhibitor application to cells. We have phenol absorbence values at 460, 560 and 720 nm wavelength. When we measure...

20 February 2021 7,700 3 View

Is there a way to grow biofilm in lab to mimic biofilms in showers and baths? Also, how can I measure it?

Hello, I am new to biofilm research and have a question about growing and measuring biofilms. We want to research the effect of a type of enzymes in breaking down biofilms in showers, baths, hot...

14 February 2021 3,522 3 View

Best protocol for immunogold using araldite resin ?

Hello, We perfom Tokuyasu method (ultrathin cryo sectionning) very often to make immunogold experiments. This time, we need to make a PLT technique with K4M or LR white resin. Our results were...

14 February 2021 4,959 1 View

How to improve the adhesion of epoxy coating on steel substrate? Which factor affects?

I am facing a problem regarding a de-adhesion problem with the coating. A brief description of my methodology is given below. I am using mild or Low Carbon steel as a substrate and I polish the...

14 February 2021 2,167 4 View

What is the method of removing RNase contamination from a filter paper surface?

I am working on a biosensing project on paper substrate, however, it is found that the RNase contamination occurs on the filter paper. Might I ask is there any method to clean the paper surface...

12 February 2021 3,926 3 View

How do I stop losing peak shape with Waters T3 Atlantis Column?

I am using this column with a gradient of acetonitrile vs a phosphate buffer. I clean the column after every run with 2%ACN:98%H20 and store in 30% ACN. I've noticed that my peaks are getting...

10 February 2021 9,181 1 View