What is the proper range of FRET efficacy?

I would like to use FRET effect to probe the distance between two functional moieties (I am sure the distance is smaller than 10 nm). I have tried several times, but I found out that the FRET...

21 February 2021 3,562 1 View

What's the function of each ingredient in a binding buffer?

I read a binding buffer in references. The recipe was listed as follows: Glucose (4.5g/L), Magnesium Chloride (5 mM), yeast tRNA (0.1 mg/ml) and BSA (1 mg/ml) was dissolved in DPBS. This buffer...

23 December 2020 8,440 4 View

Why transwell insert can cut off some drug molecules?

I am preparing a co-culture experiment in which transwell inserts will be used. According to the references, 0.4 micrometer PET membrane was selected. And different drugs were added to the upper...

15 November 2020 3,718 2 View

Can I use HUVEC cell line, not primary cell, to form barrier system in transwell?

I would like to measure the permeability of my drug using in vitro model, transwell, specifically. However, I only have the cell line, not the primary cell. Can I use the cell line to plate in the...

08 November 2020 3,330 1 View

How can I choose the concentration of Triton X-100 when I would like to permeabilize cells for flow cytometry?

Triton X-100 has been widely used to permeablize cells for flow cytometry. How can I choose the concentration of Triton X-100 if I would like to detect expression of one protein in the whole cell?...

31 October 2020 462 1 View

How to define Darcy's flow for pore pressure cohesive element in Abaqus?

Hi everyone, I am trying to define a Darcy's flow for pore pressure cohesive element in Abaqus. When I give permeability to the elements, the output of tangential flow rate (GFVR) is always shown...

11 October 2020 1,195 3 View

Extracting surface area, volume and cortical thickness from multiple groups using FreeSurfer?

Hello everyone, I'm new to FreeSurfer and this question might sound a bit stupid: I'm trying to get the volumetric measures, surface area and cortical thickness of brain regions of three groups...

29 July 2020 8,574 3 View

How many cm deepth of soil does the definition of soil composition generally refer to?

In general, for example, we think soil consist of 40% of minerals, 10% of organic matters, and 50% of water and air. My question is as follow: Does the soil used for the above definition refer...

03 July 2020 4,972 1 View

What are the dominate compounds of clay, silt, and sand in soil?

For example, what are the dominate 5 compounds in clay mineral? 80% of SiO2, etc.? Is the proportion/order of these dominate compounds changed with other factors, e.g., pH? Thank you in advance.

03 July 2020 453 1 View

Dose someone could give me sugestions about 3DNA, Nucleic acid builder, Namot2 and PyMol?

I am working on the MD simulation of 3D self-assembling nanostructures. But researchers in our group have mainly worked on proteins, small molecules and synthesized polymers. Softwares including...

31 March 2020 9,688 3 View

Dear all, I was wondering if anyone knows whether MGLtools and Autodock can run on Mac OS?

I have tried to download the 64-bit version of MGLtools however, as many times as I have downloaded and uninstall the programs, an error arises that the app needs to be updated. Thank you.

03 March 2021 5,997 2 View

Protein-aptamer gel electrophoresis help, please??

Hi, I have problems with running gel electrophoresis. I have tried agarose gel electrophoresis and native PAGE. I have two proteins, which have molecular weights of ~30kDa and ~180kDa and two...

03 March 2021 4,275 4 View

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 View

What are some important techniques for protein induction and SDS-PAGE analysis?

Hello everyone. I am fairly new in protein chemistry field. I am trying to perform a protein induction hoping to purify my protein of interest using FPLC method. However, I am having trouble on...

03 March 2021 8,237 3 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

SDS page software for analysis?

I did sds page to determine the difference in protein expression between 3 types of vaccine , but i don't have scanner or densitometer available. . so i wonder if there is a software to analyze...

02 March 2021 6,270 3 View

Do I need to strip the PVDF membrane before staining it with colloidal gold?

Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...

02 March 2021 7,829 3 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

PACYC PCR not working after several attempts. Would anyone have any suggestions?

So, I have been trying to run a pACYC PCR which will be used later on for a Gibson Assembly. However the PCR is not working. I have already tried gradient PCR and changing extension time; however...

02 March 2021 1,146 2 View

Which is a lucid standard comprehensive book to guide on psychological scale construction and its standardization?

02 March 2021 7,082 3 View