How to calculate the crystallinity of cellulose film?

27 February 2021 2,753 4 View

How does GROMACS calculate the average structure of proteins?

I want to get a average structure from a pdb file containing multiple models. I used the command below: gmx cluster -f input.pdb -s topol.tpr -cutoff 20 -method gromos -av GROMACS...

25 February 2021 6,314 1 View

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The regenerated cellulose film was prepared by zinc chloride/H2O system. The zinc chloride had been washed away in the regeneration process, and the wet film which was not dried had uniform...

18 February 2021 9,538 1 View

R/Python package for time-intensity or progressive profiling in sensory evaluation?

Hi I've been looking for a stat package for my sensory evaluation data (progressive profiled which is a multi-timepoint version of descriptive analysis). Is there any available one to...

08 February 2021 9,170 3 View

How can I make sure the simulation results of the water droplet impacting on the wall using the FLUENT agree with the experimental results?

Dear researchers, I am modeling the process of the water droplet impacting on the wall with a constant contact angle. The specific calculation parameters are as follows: The droplet diameter is...

24 January 2021 1,020 5 View

Mysterious line across SDS gel?

Does anyone have the similar issue? A line across the denature SDS gel shows up after staining with Coomassie blue and there are many lines in every lane if you take a closer look. This gel had 15...

07 January 2021 5,610 4 View

How can I calculate packing density of particles by fomulas or softwares?

I have all data of particles, such as size distribution, or numbers. Is there any way that I can calculate the packing density of these particles? Assume that all particles are circular.

05 January 2021 4,272 2 View

After cellulose is regenerated in water, a cellulose hydrogel is formed. I want to know if there is crystallinity inside the the hydrogel?

After cellulose is dissolved and regenerated in water, a regenerated cellulose hydrogel is formed. I want to know if there is crystallinity inside the hydrogel, or it will not crystallize until it...

04 January 2021 7,466 4 View

How can I fix the density of system in coarsed grain simulation?

In the process of obtaining the nonbond potential of the Coarse-grained(CG) model, I need to simulate the CG model mapped from the conformation of all atom(AA). AA simulation process is...

02 January 2021 3,643 1 View

How to export Mass and Stiffness matrices using Ansys Workbench?

Hello, I am trying to export Mass and Stiffness matrices using Ansys Workbench via Modal analysis modular, with APDL commands inserted. However, there is no .matrix file generated. Could anyone...

17 December 2020 1,196 5 View

ACE2 Blotted as a double band?

Hello, I have recently run a western of Vero cells for ACE2. I detected ACE2 at the correct size, but it presents as a double band. The sample was prepared by lysing cells in 1X Laemmli...

07 February 2021 6,973 3 View

SARS-CoV-2 Spike Protein Western Bands?

Hello, I am western blotting SARS-CoV-2 spike protein from lentiviral using an antibody against S1. To prepare samples, I mixed concentrated lentivirus 1:1 with 2X Laemmli buffer and boiled...

07 February 2021 3,643 4 View

Does gene insertion via CRISPR/Cas9 result in chromosomal abnormalities?

Hello, I hope to insert a gene into mammalian cells in culture using CRISPR/Cas9 and an HDR template. Will insertion of a 1 kilobase gene cause chromosomal abnormalities and effect cell...

31 January 2021 2,516 1 View

Can I heat my ELISA at 37C?

Hello, I am conducting a sandwich-type ELISA. It is to see if small molecules can interfere with a protein-protein interaction. As this interaction would occur in the human body, may I heat...

31 January 2021 4,271 3 View

Transfection toxicity when plated on glass coverslips?

I've been using A549s for the past couple of years to transfect in my protein of interest for imaging. Recently I've started to experience issues with transfecting cells seeded on glass...

27 January 2021 6,801 3 View

Does someone know which structure could exit the olfactory bulbs at their antero-dorsal top ?

Hi people, I am studying bat brains through endocranial casts and I cannot identify which structure could be present in sort of a canal located dorsally to the cribriform plate. It is like...

27 January 2021 797 6 View

What is the minimum number of cells required for fluorescence in situ hybridization?

I have to perform a FISH experiment with limited number of cells and I am trying to estimate the minimum number of cells required to do FISH. Cells are from mammalian cell line. I failed in doing...

12 January 2021 7,887 1 View

Can somebody recommend a dual expression vector?

09 January 2021 2,679 2 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

What are these called?

Upon tissue plating for cell isolation, I start to see fibroblasts and after a while these 3D structures start to form. Are they called stroma? Someone in my building told me that she calls them...

30 November 2020 8,685 4 View