Non-specific bands in PCR?

Usually I am doing PCR with 0.5 ul of Taq polymerase (abm) per reaction. Since I wanted to increase the sensitivity of target amplification, I tried PCR with 1.0 ul of Taq. It gave some bands in...

02 March 2018 9,088 6 View

Mass spectroscopic analysis for protein identification?

I am doing immunoprecipitation for concentrating by target proteins. I usually elute my proteins in SDS loading buffer containing Tris, glycerol, SDS, beta mercaptoethanol and bromophenol blue....

11 December 2017 1,141 2 View

Human Anti-Leishmania IgG ELISA Kits...

I have found two commercial ELISA kits for detection of human leishmaniasis. 1. Human Anti-Leishmania IgG ELISA Kit (ab108749) by Abcam 2. Leishmania IgG ELISA Kit (KA3295) by Abnova Both are...

03 April 2017 3,589 1 View

Why did the protein sample and marker not migrate properly in the separating gel (SDS-PAGE)?

I am facing the a problem in my SDS page gel. protein marker and samples not get well separated. All samples were stop separating at the middle of separating gel (protein marker also). Dye front...

09 October 2016 3,280 12 View

Physical characterization of crude parasite Ag???

Is there a simple method to physically characterize the crude Ag extracted from a parasite to check whether they are proteins, polysaccharides or phospholipids like compounds? I am using crude Ag...

07 August 2016 3,925 3 View

Analysis of proteins using westernblotting?

Does 3D structure of a protein affect for migrating distance of a protein?

06 July 2016 6,207 0 View

What is the best condition for blocking western blot membrane?

Can I keep my blocking buffer (skimmed milk or BSA) at room temperature for overnight? Is that affect for my protein?

05 June 2016 3,857 5 View

Commercial protein sequencing services?

I want to sequence some unknown protein excised from 1D-SDS-gel. Have anybody experienced with protein sequencing? Are there any good commercial protein sequencing services?

04 May 2016 4,446 1 View

Fuzzy bands on SDS-PAGE?

What are the reasons for getting fuzzy bands on SDS-polyacrylamide gel?

03 April 2016 463 9 View

TMB SUBSTRATE FOR WESTERN BLOT???

How can we convert TMB of ELISA for western blot by converting soluble TMB product of ELISA into insoluble with addition of 0.05% sodium nitroprusside? Can I use ELISA TMB substrate for Western blot?

02 March 2016 8,565 0 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Buffer to disrupt platelet alpha granules for PF4 quantification?

Hello! I want to quantify by ELISA the secreted (from platelets poor plasma) and the non-secreted (from platelet lysate) PF4 before and after TRAP stimulation. I will use the ELISA from R&D...

03 March 2021 1,499 2 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Should we change media after1st 6hrs after plating HUVEC bought from INVITROGEN?it's not recomended by invitrogen.Will DMSO present in stock matter?

We have HUVEC bought from Invitrogen. Cat no -C-003-5c. while first plating the cells we have bought the protocol suggests not to centrifuge the cell with media to remove the DMSO. Should we...

02 March 2021 3,713 2 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 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