Why doesn't graphene have any band gap?

More Gangula Abilash's questions See All

Color at the test line of a lateral flow imuunoassay strip ?

Hi, I am trying to develop a competitive lateral flow assay to detect a protein. I coat the protein on the test line and use gold nanoparticle-antibody as the conjugate that binds to the test...

01 February 2019 4,028 5 View

What is the characteristic UV-Vis Spectrum of Ultra small Gold Nanoparticles ?

Hi, I am trying to synthesize ultra small 2nm gold nanoparticles by NaBH4 reduction (Brust Method). What should be the characteristic UV-Vis spectrum of 2nm size gold nanoparticles. Should we or...

08 September 2018 3,147 10 View

What causes a product to change color and turn sticky during an organic synthesis ?

Hi I was doing an organic syntheis. I was supposed to obtain the product as a white powder. Instead, I was getting an yellowish and bit oily and sticky product. I am giving below the procedure I...

07 August 2018 9,648 4 View

How to avoid urine matrix interference while measuring proteins using an ELISA?

Hello Everyone I was trying to measure a protein in human urine samples using ELISA. When I was doing spike-recovery experiment, the recovery is less than 50 %, indicating that urine matrix is...

02 March 2018 1,405 4 View

What are the ways to inactivate a Virus without affecting its ability to bind to its antibody ?

We are trying to detect a Virus using a sandwich lateral flow assay. We are targeting the epitopes on the envelop protein of the virus. Is there anyway I can inactivate the disinfect the virus,...

02 March 2018 4,213 3 View

How much more difficult it is to detect a whole virus when compared to its Non Structural (NS) Protein ?

I am trying to develop a gold nanoparticle based lateral flow sensor to detect a whole intact Virus. I have tried with 3 different antibodies of the virus. But, I was not successful. Reading the...

01 February 2018 339 9 View

Are antibodies of a Virus specific strain ?

Suppose a virus has 3 different strains. Will the antibody specific to the virus show affinity for all the 3 strains ?

09 October 2017 1,935 3 View

How the reaction of an Antibody with Trauts Reagent to create -SH groups can be made succesfull ?

Hello Everyone, I am trying to create -SH groups in cetuximab antibody by reacting it with Traut's reagent. I followed the procedure given by the protocols of Thermo...

31 December 2016 2,080 16 View

Is there any ideal initiator for synthesis of PMMA Nanoparticles through emulsion radical polymerisation ?

I would like to know whether ammonium per sulfate (APS) is a good radical initiator for synthesizing PMMA nanoparticles by emulsion radical polymerisation. Or, does it have any drawbacks...

09 October 2016 5,729 9 View

How does silver staining increase the intensity of colorimetric signal of gold nanoparticles in a lateral flow assay?

What is the mechanism involved in silver enhancing the color intensity of gold nano particles in a lateral flow assay ? What is the reagent that we use for that ? Is it silver salt solution with a...

07 August 2016 271 1 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 4 View

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

What is the density for pva electrospining?

I'm Juan Carlos, a high school student who is working with electropinning, I made an electropinning machine with a 21g needle and a 30kv high voltage source and the distance between my needle is...

28 February 2021 298 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View