How to dissolve alpha melanocyte hormone (alpha-MSH)for long storage?

I am going to use alpha-MSH to stimulate B16F10 melanin production. I bought 1mg alpha-MSh from sigma. According to sigma, the protein dissolve in water. Can I dissolve the alpha-MSH in pbs, or...

06 December 2018 9,851 2 View

How to Identify Polymers of Packaging?

Dear all researchers, I have problem on identifying type of polymer used in different type of food packaging. I need to screen many food packaging in marketplace that use polymer that I want. In...

25 February 2018 4,232 3 View

How to change the solvent used in preparing standard stock solution?

Hi, can I know how to change solvent used in my standard stock solution? For your information, I initially prepared the standard (styrene) in methanol and I need to change it to hexane. Can I...

05 February 2018 2,935 3 View

DPPH Assay for enzymatic antioxidant?

Assalamualaikum and Good Day. I am currently working with enzymatic antioxidants such as SOD, CAT, APX etc in rice plants exposed to different water level (water stress treatment). I am a bit...

11 September 2017 3,456 3 View

I need to detect same compound using HPLC in different sample. Should I construct different calibration curve for each and every sample I studied?

I need to detect styrene monomer from different food sample

03 June 2017 3,662 10 View

How can I test the statisitcal significance of mean frequencies?

This is the situation: I observed 12 classes (4 elementary, 4 intermediate and 4 advanced) without any intervention or treatment. Each class was taught by a different teacher. So there were 12...

29 May 2017 1,228 4 View

Is Tafel plot suitable to determine corrosion rates of organic coatings?

I'm doing research about anticorrosive composite coatings by using different filler compositions (1%-5%). Currently I'm using EIS to study the anticorrosive behavior of my coatings. My question...

16 March 2017 4,781 7 View

Which package in R to implement the feature selection that suitable for regression?

15 January 2017 5,834 2 View

What are the suitable solvent extraction for liquid-liquid extraction ketamine?

liquid-liquid extraction of ketamine for chromatographic analysis

03 April 2016 9,248 1 View

Is there strong evidence in increasing estrogen from soy protein?

03 March 2016 3,091 1 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View

Is there an open source free software for text mining and sentiment analysis?

I am looking for a free software for text mining and sentiment analysis for my research on customer review mining (it involves calculating polarity of attributes,opinion oriented information...

25 February 2021 1,920 6 View

Which are the journals for free paper publication?

A bunch of flower for everybody. I would like to ask about the list of journals which we can publish our paper for free. Thanks in advance. Sincerely Walid

25 February 2021 9,790 3 View

Suggestions for occupational stress surveys?

I am currently writing a masters thesis on reasons for occupational stress in the early childhood classroom, and want to include a short survey assessing participants work-related stress levels. I...

24 February 2021 8,678 2 View

Can I use a protein-devoid condition as my negative control in ELISA?

Hello, I am running a sandwich-type ELISA where I am trying to inhibit a protein-protein interaction using small molecules. For each experiment, I determine my Z' (Z-prime) to determine the...

23 February 2021 7,429 1 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

Hello, does any one know a free medical text dataset?

a free multi label clinical text dataset , containing text as entry and several labels as classes. Best regards

22 February 2021 5,988 2 View

Protocol for membrane extraction E. coli?

Hello! I am interested in determining whether a poly-unsaturated fatty acid I have engineered E. coli to produce is being incorporated into the membrane of the cells or if it is simply a free...

21 February 2021 7,447 2 View

Can anyone recommend which is the best free questionnaire software please?

Hello, I am looking to send out links to an online survey. My previous research project used a paid for survey software. I am now looking for something that's free but straight forward to...

19 February 2021 5,641 3 View