Should i use universal buffer pH=2:12 when i add only 1 uL of HCl or NaOH to 2 mL solution in cuvette?

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Where I can find tutorials for using AMBER molecular dynamics software on supercomputer?

Hi, I am wondering what are the files that should be prepared? how? commands? that enables me to perform MD simulations using AMBER on Supercomputer.

11 December 2019 6,157 5 View

What database or anything else enable me to find the pharmacological actions of certain pharmacophore?

I want to find a database in which i can draw the chemical structure of the core ring and it will give me all the published structures with their biological activity. For example, the...

05 June 2018 1,361 11 View

How can I get a list of FDA-approved drugs of certain category?

I'm wondering how i can find an updated list of FDA-approved drugs for example, proton pump inhibitors, Topoisomerase inhibitors or whatever category.

04 May 2018 5,097 5 View

Any recommendations for highly viscous solvent but should be non-polar and aprotic one?

I'm wondering if you could suggest highly viscous solvent which is non-polar or slightly polar and can't form H-bond interactions. Most preferrably: a glass forming solvent at low temperatures to...

04 May 2018 3,629 4 View

Where I can find a downloadable list for Quartile (quantile) journals ranking?

I'm also wondering is this ranking standard or it differs from website to another.

02 March 2018 6,987 7 View

Some questions regarding proteins sequence and structural comparison?

I hope you can help in these matters. 1) What is the difference between sequence and structural comparison between proteins? 2) Which website or software is good to use to perform this task? 3)...

10 November 2017 9,829 5 View

What are files required to submit GROMACS job on supercomputer?

I don't know how to prepare input and script files for GROMACS. I appreciate if you could share example for a small job. I learnt that i have to convert .pdb file to .gro but I don't know how.

08 September 2017 2,748 13 View

Intermolecular H-bond bond can be converted into a covalent bond ?

From scientific point of view, if a h-bond is formed as in RN-H.....NAr The covalently bound proton can transfer to other side forming RN.....HN+Ar if it can take place, is there a reference for...

07 August 2017 10,152 6 View

How to purify BSA (Bovine Serum Albumin) for Absorption/Fluorescence spectroscopy use?

As you know, BSA is commercially available as 96% and 98% pure. It contains also fatty acids. Therefore, i'm wondering how to get BSA purified.

07 August 2017 5,133 3 View

Understanding synchronous fluorescence spectrum?

In Synchronous spectrum, both Exc and Fl monochromators are scanned simultaneously. MY questions are; 1) How to determine delta wavelength 2) if delta wavelength is 20nm, does it mean the data...

06 July 2017 4,191 4 View

AMAXA Lonza nucleofection lower volume of buffer?

Does anyone tried to do nucleofection with AMAXA by Lonza with lower than recommended amount of buffer in the cuvettes (100 ul)?

07 August 2024 4,616 0 View

Why I can't see any band in SDS-PAGE?

Currently, when I run SDS-PAGE, I don't see any bands at all, even though I used the same material just a day ago and it worked fine.... In our lab, we dilute the 10X running buffer to 1X and...

06 August 2024 5,373 2 View

Why might the impedance values for DI water and 0.1X PBS buffer solution exhibit a decreasing and increasing trend, respectively over time (HP 4194A)?

Hello everyone, I'm encountering an issue with my electrochemical impedance spectroscopy (EIS) measurements and would appreciate some insights. Experimental Setup: Electrodes: Gold interdigitated...

05 August 2024 3,783 2 View

What is the best blank for nanodrop if I want to read a recombinant protein concentration?

Is it the "elution buffer" or the "dialysis buffer"? Note: I'll be using NanoDrop OneC

01 August 2024 967 3 View

What is the best practice for resuspending cell pellets during competent cell preparation (both electro and comp)?

I'm fairly new to making homemade comp cells and have done so with some mild success. What is generally an acceptable way of resuspending comp cells during wash steps? I've been told to swirl the...

31 July 2024 8,309 0 View

EDTA buffer solution?

Hello everyone! How can i prepare EDTA buffer solution (pH 8.2) to determine GSH levels? Thank you in advance.

29 July 2024 4,374 1 View

Whether i can preserve leaves samples in 2.5% glutaraldehyde in 0.05 M phosphate buffer, pH 7 for coming several weeks for further LM study ?

I want to preserve the sample leaves for the LM study of the stomata and conidia analysis. Whether 2.5% glutaraldehyde in 0.05 M phosphate buffer with pH 7 can be applied for preservation.

29 July 2024 8,560 0 View

What is the best method for removing paraffin from plant samples prepared for microtome?

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24 July 2024 3,087 3 View

Can a shoot-through event of a tri-state digital buffer cause momentary Hi-Z state?

// interested in the difference between floating events and short circuits.

22 July 2024 6,565 0 View

How can EDTA be removed from already extracted DNA samples?

Our lab has extracted bacterial DNA samples using Qiagen DNeasy kit and eluted the samples in AE buffer. However, this buffer contains 0.5mM EDTA not suitable for downstream application. Any ideas...

13 July 2024 1,675 3 View