Which research institutes perform the telomerase repeat amplification protocol (TRAP) assay?

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Can we solate viable cells from frozen xenograft tissues?

I am planning to isolate cells from frozen xenograft tissues (stored in liquid nitrogen). The tissues are stored in 10% DMSO, 30%FBS and 60% RPMI with Penn/Strep. These tissues were frozen with a...

14 December 2020 3,910 1 View

Hello Everyone, Can anyone help me in the transfection procedure of plasmid into chicken spermatozoa by electroporation?

Hello everyone, I am doing an experiment in which, the plan of work is to electroporate a clone (plasmid form) into chicken spermatozoa, which will be used further for artificial insemination....

07 September 2020 7,855 2 View

CG relaxation with B3LYP in VASP?

I am trying to CG relax a amorphous GeSe system with B3LYP and single K-point (gamma). Even though I have a 250 atom model, the calculations seem to be extremely slow. Is there a way to speed up...

23 August 2020 8,848 4 View

Can I use XBridge C18 ( 3x150mm, 3.5 um) column in a Aquity UPLC system for method development?

I have a UPLC system and XBridge C18 ( 3x150mm, 3.5 um). I am running short of time and cant procure a UPLC compatible column for the time being.

15 December 2019 8,433 12 View

Can anybody share links of dorsal hand vein images data set to download?

I need a data set of dorsal hand vein images for experimental purpose.

07 October 2019 1,438 1 View

How to dissolve PtCl2 in water?

HI, I am finding difficulty with the solubility of Platinum (II) chloride. I wanted to prepare PtCl2 in water for electrochemical application.

21 August 2019 5,444 3 View

No title

We have derived from certain astrometric and cosmological observations how physical constants evolve in time (https://doi.org/10.3390/galaxies7020055). The theoretical basis used is rather...

25 May 2019 8,899 3 View

How to link an enzyme to nanoparticle?

Hi everyone, I am looking forward for a solution to my problem. I want to attach an enzyme covalently on gold nanoparticle surface. If i follow EDC-NHS chemistry, the enzyme-nanoparticle complex...

14 April 2019 7,238 2 View

No title

Tartaric acid content by HPLC

09 April 2019 3,675 10 View

I have been doing HPLC with 0.1%OPA/MeOH.....after a couple of runs..the pressure started increasing the maximum level @ 40% MeOH?

washed the column in the reverse direction also but the same problem persists. when flow rate is reduced to 0.8mL/min from 1 ml/min...the pressure reduced to 2800 psi apprx. what more can be done...

04 January 2019 7,935 13 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

RIA. How to measure?

When you use RIA, with a control the unknown sample with antibodies, you bare in mind the binding sites of the antibodies. However you still need to measure labelled antigen (radioactive) and not...

28 February 2021 2,133 3 View

What's the concentration recommend for recombinant protein use in western blotting?

I'm currently working having problem with the concentration for recombinant protein use in western blot, the one been used is Recombinant Human CD19 Fc Chimera Protein-rndsystem which does not...

24 February 2021 8,514 3 View

Will SARS-CoV-2 Spike be broken into S1 and S2 by denaturing conditions?

Hello, I am performing a western blot of my SARS-CoV-2 Spike-pseudotyped lentiviral particles. I denature my virus by adding concentrated virus to 2X Laemmli buffer at 1:1, then boiling for...

17 February 2021 4,844 4 View

What is the best temperature to coat an ELISA plate?

Hello, I want to control the temperature of my ELISA plate during incubations to get consistent results. In general, what is the best temperature to coat the plate with antibody? I have been...

16 February 2021 2,377 7 View

Kinetics of Enzyme production in Recombinant E Coli?

Hello, I am trying to find kinetic information (such as rate of enzyme production etc.) on the expression of taq polymerase in E-Coli after inserting a recombinant plasmid. Any help would be...

12 February 2021 1,386 3 View

Can Immunogenic BNT162b vaccines protect HUMANS from SARS-CoV-2?

"A safe and effective vaccine against COVID-19 is urgently needed in quantities sufficient to immunise large populations. We report the preclinical development of two BNT162b vaccine candidates,...

11 February 2021 6,628 9 View

Is it possible to quantify recombinant protein in the supernatant using SDS PAGE ?

I would like to quantify a recombinant protein (with native signal sequence) secreted by Pichia pastoris using the SDS PAGE. Since my standard protein (plant origin) is not pure, I would like to...

07 February 2021 3,880 9 View

How to measure the concentration of a labeled protein with no tryptophan or tyrosines?

Hey I'm trying to measure the concentration of a protein I've purified and then labeled with Atto 647 flourescent dye. The protein has no tryptophans or tyrosines (although does have...

04 February 2021 4,482 4 View

How to prepare protein samples in EMSA assay?

Recently l was studying EMSA assay, but l didn't find any detailed information about protein sample. we can use two kinds of protein, including crude protein extracts and recombinant proteins. but...

02 February 2021 10,047 3 View