Genescan gives 3 peaks instead of one?

Hi all, I am doing a genescan analysis for a deleted exon in the patient sample. The amplified region is 215 bp. In the patient sample because of homozygous deletion, no peak is observed while in...

23 February 2021 5,645 1 View

How to extract water soluble amino compound from after aqueous work up?

4-Dimethyl amino pyridine is used in reaction.Product formed contains amino group along with amide & is highly water soluble. To remove 4-DMAP aqueous work up done. Please give solution. Thanks.

21 February 2021 1,883 1 View

How doping in nano-particles with same valency affect it's crystal lattice structure?

When doping in case of semiconductor is concerned, we doped Si by trivalent or pentavalent impurity atoms to improve its electronic properties but in case of nano-particles, sometimes we doped...

31 January 2021 7,128 1 View

How to prevent aggregation of nano-particles without using surfactants?

As it is well known fact that nano-particles can easily aggregate during nucleation/ synthesis part due to high surface energy..by reading literature, I came to know that surfactants can help to...

30 January 2021 8,206 6 View

How do I dissociate an antibody used for positive selection of cells in order to re-culture the selected cells?

Hi, I am interested in cells that express a specific receptor. I use a fluorophore-conjugated antibody bound to the receptor followed by MACS positive selection to enrich for this...

21 January 2021 2,245 3 View

Is it possible that insecticides from same group and same mode of action may not show cross resistance?

I could not find any cross resistance between two insecticides from OP group, is this possible?

14 January 2021 9,625 3 View

I'm getting same +ve and -ve value of the blank, which I set for taking fluorescence reading?

I'm checking fluorescence of umbliferon and has set water as blank in two wells. The two wells are showing same reading but one is +ve and another is -ve. Also, the fluorescence can't be negative....

12 January 2021 2,332 3 View

Standard curve for 7 hydroxy coumarin (umbliferon)?

Hi! I am getting a higher fluorescence value for a lower concentration Umblifero solution than compared to a higher concentration solution. I am using the 0.001, 0.0008, 0.0006,0.0004, and 0.0002...

07 January 2021 4,353 5 View

I want to use Gold electrode as a reference electrode for electrodeposition of nanostructures. Can i use it and how ??

How to use a Gold electrode as a reference electrode ??

04 January 2021 4,058 4 View

Basmati rice and GI tag?

You may be aware of the application for Geographical information tag to Basmati rice by India to European Union (EU). Since Basmati rice is traditionally grown, sold, and consumed in Nepal and...

16 December 2020 8,402 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

What kind of steel moulds are used for hot pressing metal powders?

My main concern is that the metal powders should not weld to the mold surface and I should easily be able to eject out the pressed samples. I am looking for alternative for graphite moulds. The...

22 February 2021 2,965 4 View

How do you integrate the 'friction' variable Xi in the Nose - Hoover Thermostat in order to apply it to a molecular dynamics simulation?

Everything tells you the derivative of Xi, but not how integrate the value to implement it into a simulation. How do you do this?

21 February 2021 6,481 1 View

How to implement boundary conditions in Abaqus contact problems?

Hello I am trying to simulate crawling motion of a bilayer beam using Abaqus. Kind of similar to this: https://youtu.be/os-Z3ucoFpA I am using multiphysics enabled (diffusion, deformation,...

20 February 2021 2,916 1 View

How to get/count refractive index in gasses?

20 February 2021 8,202 6 View

How to make Fast Green FCF from powder?

Hi everyone We need Fast Green to electroporate plasmid into mice embryos, therefore we simply need it to see some color in the liquid we are electroporating so that electroporation is more...

07 February 2021 1,671 2 View

When to use Darcy or Fanning friction factor in frictional pressure drop measurement?

04 February 2021 6,174 3 View

Which is the best software for the simulation of tribological properties of materials?

I want to simulate the tribological properties of solids, liquids, and fluids, please suggest good software.

02 February 2021 3,947 3 View

Does anybody work with CoolLED in fluorescence microscopy?

I have trouble with exciting wavelengths higher than 460 nm while e.g. ex with 405 nm works. Filtercubes are correc, as I used them with my old xenon lamp before... I work on axiovert200M and with...

25 January 2021 5,201 2 View

How to prepare a liquid sample for FTIR spectrum?

I have a ethanol-water 50% extract of mango peel. I purified mangiferin from the extract with filtration and precipitation. so i obtained a low concentrated extract which i want to se the IR...

24 January 2021 8,880 7 View