Overload while perfoming CV measurements in Versastat potentiometer?

Hello, I am trying to perform cyclic voltammetric studies using Versastat 3 Potentiometer. For the first study, I have used a Pt wire with diameter 1.6mm as working electrode, a Pt sheet as...

04 May 2018 7,216 8 View

How can we calculate the demagnetizing field around a spherical magnetic nanoparticle?

08 September 2016 8,482 4 View

How can I make the PVP coated iron oxide nanoparticles stable in water?

I have synthesized PVP coated iron oxide nanoclusters( approx. 250-300nm diameter) using hydrothermal method. But the nanoparticles are not very stable in water and keep falling down. How can I...

06 July 2015 4,632 3 View

How to determine the extinction coefficient for carbon quantum dots?

For determining the concentration of a colloidal solution of carbon quantum dots I need to calculate the extinction coefficient. How can I determine the extinction coefficient from optical...

11 December 2014 8,511 6 View

Why is a kink appearing at around 160 K in the M-T curve of Fe3O4 nanospheres?

09 October 2014 5,720 15 View

How does the magnetic property of a solid magnetic nanosphere differ from that of a mesoporous magnetic nanosphere?

I am trying to study the magnetic properties of mesoporous magnetic systems in comparison to solid nanoparticles. Can I expect spin tunneling through the pores of the mesoporous nanosystems?

03 April 2014 1,229 7 View

What is the difference between carbon quantum dots and graphene quantum dots?

I have prepared carbon quantum dots by a simple hydrothermal treatment of glucose. Recently I got some papers on fluorescing Graphene Quantum dots. I was wondering whether both of them Graphene...

02 March 2014 4,574 11 View

How do you determine the crystal planes from an XRD pattern?

I have been trying to index the planes from an XRD pattern. But the 2theta value of the nanoparticles happens to match with various other phases of the same sample. What is the correct method to...

11 December 2013 6,109 10 View

Do we need to digest laboratory treated water samples for arsenic remediation before analyzing under atomic absorption spectroscopy?

I am trying to remove arsenic from laboratory water using iron nano particles. After treating with nano particles, do we need to digest the water sample using nitric acid? I have prepared my...

04 May 2013 2,978 14 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

Adherance of Polyaniline coating over stainless steel?

Is the electropolymerisation of polyaniline coating over stainless steel (SS) via Cyclic voltammetry technique is really adherant? Else how to improve the adhesion of the coating, whether any...

01 March 2021 8,220 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 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

What is the indication of the absence of peaks in Methanol electrooxidation CV curves ?

I have several question regarding the MOR; hope anyone help me better understand. 1- in CV using (KOH+MEOH) what is the indication of absence of the redox peaks? shouldn't they exist as a sign...

28 February 2021 4,851 8 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