Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 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

How the parameters (such as Mw, Chemical bonds, polymer bland and so on) affect the mechanic property of polymer (such as storage, loss modulus) ?

Anyone can recommend any books on such topics? Thanks in advance.

02 March 2021 8,457 2 View

Expression cloning by using cDNA,do I need to modify the cDNA first?

I am going to have a expression cloning of mammalian gene by using shuttle plasmid to transforming the E.coli However I don't know I should only inserting the Coding sequence ,or I can...

28 February 2021 5,440 3 View

Can I ask did any good platform or journals for learning the calcluation on the reference governors and command governor?

Recently I face some problems with the mathematical ( calculation) on the reference governor and command governor, so I need some help from you all to get which platform or journal can let me...

23 February 2021 7,746 2 View

How to discriminate between Sentinel-2 Level-2A Product Discriminators?

According to the Sentinel-2 user guide here (https://sentinel.esa.int/web/sentinel/user-guides/sentinel-2-msi/naming-convention), the compact naming convention is arranged as...

21 February 2021 5,919 9 View

How to get the vector of a specific vibration mode in phonon dispersion?

For example, I have this phonon dispersion(Fig. 1), and now I would like get vector of atoms which describes TA1 in P. I know v_sim can show vibrational animation of specific mode, but I do not...

20 February 2021 4,332 4 View

Blast analysis of RC,UHPC slabs using material model *MAT_72R3 in LS-DYNA?

20 February 2021 5,984 3 View

What influences inter-day reproducibility in UPLC-MS/MS analysis?

I was analyzing some metabolites in human plasma. While the intraday precision of these metabolites was acceptable ( less than 20%), the interday precision was quite large. So what influences...

13 February 2021 9,183 9 View

Plasmid amplification in S2 cell?

When co-transfect S2 cell with selection vector (pCoHygro or pCoBlast ) to make a stable cell line, does the gene integrate into the genome or just like E.coli? How do the plasmids amplify within...

09 February 2021 5,423 1 View

How can solve/disperse silicon nanoparticles in water?

I want to add silicon nanoparticles to my hydrogel, but when I sonicated these particles with water to disperse them in water, they agglomerated on the water's surface. How can I disperse them in...

26 January 2021 213 4 View

What are the different subclasses in intermediate seeds?

I am currently working on an endemic tree species, that produces mature seeds (moisture content 51%) which shows both vivipary (30% of total harvested seeds from a tree) and dormancy (~40%) of...

20 January 2021 2,670 3 View

Hi friends. Is it possible powder graphene disperse in organic solvent?

Dear friend I would like to ask you a favor. how can I reach to a solution of Graphene based in an organic solvent. and if it was possible, what the appropriate solvent would be? My current...

11 January 2021 9,163 3 View

What does this PZC data mean?

I measured different kinds of catalysts which were dispersed in DI water.I firstly added certain amount of HCl and then used NaOH to titrate and measure the pH value. What does this result mean?

27 December 2020 5,728 4 View

How to define custom boundary condition between particle and wall in comsol multiphysics?

I was trying to incorporate stick-slip boundary condition between particle and wall. COMSOL is having a stick and bounce model for that, but it is not suitable for my case. Is there a way I can...

23 December 2020 5,883 1 View

Do the anchoring condition at NP-LC interface changes in any particular solvent (i.e. toluene, ethanol etc) or remains the same ?????

For absorbance and emission measurements of nanoparticles dispersed nematic liquid crystal we dissolve sample into a particular solvent (like toluene, ethanol etc). do anchoring condition at...

04 December 2020 1,938 1 View

What is the role of Phytomelanin in seed coat?

We know commonly found in seed coat at Asparagales and Asteraceae family But, what is the role of Phytomelanin in the seed coat? Is it only a protector?

03 December 2020 7,493 5 View

Can anyone help with setting up the R germinationmetrics Package using multiple species and treatments?

I have 14 species, 6 temperature settings and two treatments to examine germination responsiveness over 59 days. I want to start with some basic info for plotting (t50, Gmax etc). I want to...

18 November 2020 7,160 4 View

Are the particles well dispersed based on my results below?

What I want to do: I have a colloidal dispersion which comprises silicon dioxide (SiO2) particles (diameter=450nm) and poly(ethylene glycol) and want to confirm that the SiO2 particles are well...

16 November 2020 817 16 View

How does the influence of metal ions on the fluorescence intensity of a compound?

We found an interesting phenomenon that metal ions could not influence the fluorescence of a compound when the compound was dispersed in solvent. However, the fluorescence of the compound was...

31 October 2020 6,568 3 View