How to purify a special lipid, such as cholesterol and phospholipids?

How to purify a special lipid, such as cholesterol and phospholipids? I need to purify the whole cholesterol in the blood to the exclusion of other lipids. Is there any special molecules to purify...

04 May 2019 7,035 4 View

Which laptop configuration should i choose for bioinformatics?

which laptop configuration should i choose for bioinformatics? I'm going to study the bioinformatics. But, the professor told me that my laptop isn't suitable for bioinformatics. Therefore, i...

11 December 2018 6,936 0 View

Can SDS-PAGE detect monomer and polymer?

Can SDS-PAGE detect monomer and polymer? If it can, DTT should be added prior to load in gel?

05 June 2018 3,720 1 View

Which concentration of the Bis could the native page need?

05 June 2017 9,348 3 View

What is the white cloudy precipitation after lysing HEK-293T cells?

What is the white cloudy precipitation after lysing HEK-293T cells? My lysis buffer is composed of 1%NP-40, 150mMNaCl, 50mMTris, 5mMEDTA. After lysing 30min and centrifuge at 1,2000 *g with 30min,...

04 May 2017 375 0 View

Could native page detect tiny mobility changes?

10 November 2016 8,066 0 View

How much concentration of CHAPS can i use in lysis buffer?

10 November 2016 6,497 3 View

Could cells from proliferation express the plasmid which i have transfected?

08 September 2016 8,298 0 View

Could I get a high yield human protein production in MDCK?

04 May 2016 4,596 3 View

Western Blot can not detect the expression of protein, although the green fluorescence is expressed. Why ?

Western Blot can not detect the expression of protein, although the green fluorescence is expressed. Why ? The vector is CMV promoter and the sequence is that eGFP-2A site-Myc-insert. There are...

03 April 2016 2,751 4 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

Buffer Exchange using column packed with sephadex G-25 effect on protein concentration?

Hello, If i am doing a buffer exchange for an antibody of 1mg/mL, does the elution lose protein in the process of buffer exchange? For example, if i flow through 500 uL of 1mg/mL sample, and...

03 March 2021 6,299 3 View

How optimize the Size Exclusion Chromatography?

Hello! I'll do a size exclusion chromatography, but I only have an open column, and I'll perform the peptide extraction from yeast, using buffer lysis (sodium phosphate 50 mM/NaCl 30 mM/DNAse and...

01 March 2021 2,215 2 View

Why are my bands weird in this Agarose gel?

Can someone please give me some possible things that could go wrong? Here is my recipe: 0.5g Agarose 50 mL of TAE 1x 1 uL ethyl bromide. Gel was run at 100V for 1 hour. The buffer used is also TAE.

01 March 2021 9,952 3 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

What do I do with DLS peaks that are from the buffer?

I'm looking at the aggregation of my protein sample using DLS. Unfortunately, my buffer (20mM HEPES) also results in a set of peaks. These are at approximately 1 and 1000 d.nm. The lowest peak...

01 March 2021 9,015 2 View

Why is the sum of the elements in a row in a Q matrix equal to zero?

When explaining substitution models, the substitutions are expressed as Q matrix. Why is the sum of the elements in a row zero?

28 February 2021 3,864 3 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View