Why are we measuring gel content of NBR latex? Does gel content related to the amount of cross-linked in a polymer?

Hi good day to everyone! I am actually studying the gel content of synthetic latex. Refer to ASTM 3616, gel content is measure of insoluble rubbers in the chosen solvent. So, I just would like to...

07 February 2021 605 4 View

What is the optimum Wolbachia population that can significantly affect dengue cases in densely populated provinces in the country?

I am working on a paper that looks into the dynamics of the spread of Wolbachia and its potential impact on dengue transmission, particularly in the Philippines.

29 October 2020 6,723 3 View

How to determine the number of cells before suspending them in 1x binding buffer in Annexin V FITC assay?

I am performing Annexin V FITC assay for adherent cells. According to the protocol described, the treated cells were trypsinised and collected, followed by washing them twice with cold PBS. The...

18 July 2020 8,695 5 View

Appearance of crossing point signal even in water during qPCR. Help?

We have been running qPCR to detect Fusarium in wheat grains. Suddenly out of nowhere, we kept getting crossing point signal in the blank (PCR water). We have done the following: ran with only...

01 March 2020 1,408 3 View

How to perform data analysis for ranking of familiarity of foods?

the most familiar food was assigned to 1 and continue rank among the list of the foods until the least familiar food. How to perform weighted ranking or any suitable method can be suggested for...

21 September 2018 6,557 3 View

Why do my western blots look so odd?

The three images attached here are for 3 different proteins probed at the same time. The first one is GAPDH. Does anyone have any idea why (1) Despite reasonable Bradford assay results, GAPDH...

14 January 2018 5,544 3 View

Choice of electrolyte for characterizing Cu2O/CuO coated on Cu mesh?

I have Cu2O/CuO coated on Cu mesh and would like to characterize its electrochemical properties using CV and Impedance analysis. I have tried using 0.5M and 1M of Na2SO4 (scan rate 10mV and 20mV),...

03 September 2017 4,244 4 View

Peak height in qPCR melt curve analysis?

31 October 2016 1,428 5 View

Why my cells (Flp-in CV-1) precipitate after adding in the antibiotics?

The culture looks fine during maintenance but after transfection, precipitation forms immediately after I adding the antibiotics (hygromycin b) for positive cells selection. So I tested the fresh...

18 August 2016 2,955 3 View

Where do i buy Sybr green dye?

27 June 2016 6,138 3 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 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

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 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

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

How can extract ciprofloxacin hydrochloride disolve in water er to organic solvent such as dichloromethan or any other solvent?

I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.

01 March 2021 4,306 1 View