How to remove unreacted florescent dye from labeled protein?

Hi I have a protein labeled with rhodamine B and after reaction i used Zeba spin column for dye removal. my problem is that lot of unreacted dye remained which interfered with my florescent...

02 February 2021 644 2 View

Protocol for protein labeling using Rhodamine B Isothiocyanate?

Hi I want to label a protein with Rhodamine B Isothiocyanate which failed. I have the protein in PBS pH 7.2 the Rhodamine B Isothiocyanate dissolved in DMSO at 10 mM. added 15 times molar excess...

26 January 2021 7,468 3 View

Best practice for graphing linked data?

In an experiment with cardiomyocytes, each recorded cell was exposed to three different conditions. A) was a basal recording, B) was a low dose of a drug, and C) was a high dose of a drug. Every...

31 August 2020 3,246 1 View

How many nucleotides can you add in a PCR?

Hi so i have before added restriction sites and stop codons by flanking the primer with extra nucleotides. But now the question arises can I add more stuff this way? like a whole His-tag worth of...

24 November 2019 6,230 3 View

How do I bind Graphene to epoxy?

I am looking to use graphene sheets as strain gauges inside of a prepreg composite made of carbon fibers and epoxy resin (or BMI if easier). I haven't decided which kind of...

12 December 2018 6,073 3 View

Can you freeze diluted HRP-conjugated antibody?

Is it possible to reuse HRP conjugated antibody for ELISA after you have frozen(-20) the antibody that is diluted to experimental concentration?

18 May 2016 9,039 7 View

Does the pressure(-600 mmHg) affects pH?

When I conducted the degassing experiment using decompression under anaerobic condition(and I used ferrous based chelating agent), the oxidized ferric were observerd. So, could you tell me the...

03 March 2021 4,892 5 View

How can we obtain a modification factor for creep parameters?

I want to obtain standard creep parameters of salt rock by creep parameters of rectangular samples. Is there a modification factor to convert creep parameters of rectangular (prismatic) rock salt...

01 March 2021 7,131 1 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

Which transition metal salt precursor is best for doping? Why?

I would like to synthesize a transition metal doped TiO2 via solgel method. Hence, I would like to know which metal salt precursor to choose among Chloride, Nitrate, and Sulphate. A clear...

27 February 2021 4,285 3 View

Which database would give me this list of chemical components?

Dear colleagues: I would like to know if anyone knows of a database that gives me the parameters pH, K, K, Mg, P, C, N, Zn, Cu, Ni and Cd of common foods. I find a lot of information of proteins,...

26 February 2021 5,525 3 View

What are the saturated salt solutions that can give specific relative humidity of 35%, 65% and 95% for conditioning wood specimens?

Due to the unavailability of climate rooms, I want to carry out an experiment that require the use of certain saturated salt solutions especially those that can condition the wood specimen to 35%,...

25 February 2021 8,139 1 View

It is necessary to reflux the Schiff base and metal salts to obtain metal complex??

24 February 2021 9,166 3 View

Why is NH4OH added in heavy metals limit test?

The limit test I'm referring to is USP method II. In this procedure you need to dropwise add 6N of NH4OH to the sample until it the pH is alkali. After that you need to dilute and add HOAc until...

23 February 2021 2,049 3 View

How can I remove deep eutectic solvents from the medium?

Dear researchers, How can I remove deep eutectic solvents from the medium? You know, generally, deep eutectic solvents consist of ammonium salts and an acid group. Is there any alternative method...

22 February 2021 3,275 3 View