How to increase the degree of labeling in amine and NHS ester conjugation?

I am trying to conjugate oligo modified in the center with amine to NHS-ester modified dye. As oligo is modified in the center of the chain, the degree of labeling achieved is less than 40...

10 November 2018 1,458 3 View

What are the methods to check the bio-activity of lyophilized DNA-polymerase ?

I have to study the bioactivity of DNA polymerase. As per my search, qPCR is one of the methods to check the activity. What is the method I can use to check the bio-activity and the stability of...

08 September 2017 7,700 0 View

Do copper nanoparticles show shape and size dependent color variation ?

I read many research acticle regarding gold and silver nanoparticles have color variation as the size of particle changes. I am curious to know that does copper nanoparticles have similar...

09 October 2015 5,190 5 View

What is the reason for the presence of three plot ( for Exx, Eyy and Ezz) in dielectric constant vs photon energy plot for 2D structure?

While calculating the optical spectrum for nanowire (theoretically) I got three curves for all three different direction but as per my knowledge the spectrum contains two curve, one for z axis and...

31 December 2014 4,661 1 View

Is there any relation between the polarization of light and scattering of light?

During the study of optical spectrum for 2 D material, this question comes in my mind

31 December 2014 8,648 11 View

How to do passivation of nanowire in AtK virtual nanolab 11.8.2?

31 December 2014 2,481 0 View

If we made a nanowire by using semiconducting material like ZnTe or ZnO , are there electronic properties that will change or remain the same?

Electronic properties of nanowire

11 December 2014 921 17 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

Can chitosan alone can act as a reducing agent for Cu(0) nanoparticle sythesis?

[Synthesizing Cu nanoparticles without using chemical reductants]

01 March 2021 8,359 1 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 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

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How can I calculate the rdf of water molecules around 'Na' ions that are closest(adsorbed) to the nanoparticle(solute)?

Hi, I want to calculate the radial distribution function for water molecules around the Na+ ions adsorbed on the surface of a spherical nanoparticle using the gromacs trajectory dynamically? For...

28 February 2021 5,650 1 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

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

Why there are two peaks while using the mie plot of Silver nanoparticle?

Hi, I am trying to learn the theoretical modelling of silver nanoparticle using the Mie scattering theory. After that, I discovered a software named Mieplot developed by Philip Laven, where it...

25 February 2021 7,493 6 View