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

Schrodinger Desmond runs fine on one GPU, but crashes on other GPU?

Hi, We are having issues using Desmond on our workstation. Simulations run fine on one of our gpus ("Gpu0") but crash consistently on the other gpu ("gpu1" - which is also set up as the display...

01 February 2021 5,866 3 View

Is it possible to entrain a particle(s) into a gap/crack/cavity within Ansys Fluent?

I am trying to simulate the entrainment of a discrete phase particle in Ansys Fluent. Essentially, the particles would enter a pipe containing water, and flow into a hole in the pipe, and become...

13 January 2021 4,789 3 View

Is it possible to model a pressure-activated sealant in Ansys fluent?

I am trying to figure out how you'd model a pressure-activated sealant within Ansys fluent. This would be able to seal over a small crack, represented by a pressure differential, on the inside of...

12 January 2021 2,504 3 View

Would a non-Newtonian fluid be the best way to approximate the flow of large particles in Ansys which can plug a leak?

I am trying to model the sealing of a leaking water pipe within Ansys fluent, using the insertion of a stream of particles into the pipe, which would be forced into the gap by the pressure...

12 January 2021 9,509 0 View

How does climate change affect birds (shorebirds)?

I m recently investigating the impact of climate change on shorebird population trends, I would like to know what is the impact of fluctuations in variables such as sea surface temperature, global...

10 November 2020 9,293 15 View

Can I use the EPIC-Oxford FFQ for free?

Designing my PhD project and need to use an FFQ, but we don't have any funding for this part of the project.

09 November 2020 4,541 1 View

Is there a survey tool (similar to REDCap) through which we can send an anonymous survey and restrict respondents to one survey each?

I am working on a research survey where I need to send it out to a group of users and track in (anonymous) responses. I need to restrict users to completing the survey only once. I do not think...

06 August 2020 918 2 View

Western Blot Transfer Band Smearing?

Anyone have any insight? It's becoming a recurring issue. I make fresh transfer buffer each time.

29 July 2020 9,331 9 View

How many users can i put in the same vsat broadband plan?

sorry if i wasn't able to explain very well for example, i am in a country that doesn't have satellite internet service, and would like to be the first provider for this service. lets say i have a...

05 July 2020 4,637 1 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

What pH condition required to coat APTES on silica coated Fe3O4?

It's a hydrolysis reaction, which may produce by either acid or base-catalyzed reaction. so can anybody help me with this, which condition is suitable for this reaction?

26 February 2021 1,760 8 View

My silica gel column dried can I somehoe save the trapped matter?

I tried to separate my substance from a protein in a sillica gel column. By mistake, it dried and cracked. Can I save the trapped substance? Can I repack it ,or at least elute all of the trapped...

22 February 2021 1,789 3 View

Amorphous silica XRD peak at around 10 degree?

21 February 2021 3,417 5 View

Reaction condition to convert NH2 to COOH?

I need to couple Dopamine by NH2 end to silica nanoparticles coated by PEG-NH2, but first i need to convert the PEG-NH2 to COOH by using succinic anhydrous ... can you suggest a reaction condition ?

13 February 2021 2,768 4 View

Extraction of DNA from insect samples conserved in silica gel?

Hi everybody, can anybody suggest how to extract DNA from insect samples conserved in silica gel (in my case, mosquitoes)? Does anybody know a commericial kit which does that or a particular...

10 February 2021 3,392 4 View

What is the type or grade of ethanol used in SOL-GEL?

I'm preparing materials that will be use in SOL-GEL to produce silica gel, I will use Tetraethyl orthosilicate (TEOS) as precursor, and ethanol as solvent , but when I search to buy ethanol, the...

01 February 2021 5,153 4 View

What is the most efficient way to generate amorphous silica in LAMMPS?

I would like to generate multiple large samples of amorphous silica in LAMMPS. Currently I am generating it by beginning with a lattice of silicon and oxygen atoms and using a melting and...

28 January 2021 6,128 4 View

How best can one separate n-hexane-soluble fraction of plant extract that binds strongly to silica gel columns and what are the possible compounds?

I wanted to elute n-hexane-soluble fraction of a plant extract in a silica gel column using different proportions of dichloromethane/n-hexane. The bands separated visibly initially but moved only...

18 January 2021 9,270 3 View

Is there any special rule to find out possible room-temperature stable silicates' chemical composition, if not crystal structure itself?

Suppose one needs to find out room-temperature stable silicates chemical composition of a particular cation, suppose magnesium. Is there any rule to estimate which stoichiometric values of metal...

13 January 2021 7,385 4 View