Among the Cu, CuO and Cu2O nanoparticles, which one is the most antimicrobially active and why?

More Bibekananda De's questions See All

Will a hyperbranched polymer exhibit lower or higher dielectric constant compared to the linear analogue?

I have synthesized a hyperbranched epoxy thermoset which exhibits lower dielectric constant compare to the bisphenol-A based epoxy thermoset though one of the reactant in the hyperbranched epoxy...

01 February 2014 262 9 View

Do all Cu and Cu related nanoparticles (like CuS, CuO, Cu2O) exhibit antimicrobial activity?

I want to prepare polymer/Cu or Cu related antimicrobial nanocomposites. CuS is not showing any antimicrobial activity. What is the main mechanism of Cu or Cu related nps to show antimicrobial...

31 December 2013 1,174 11 View

Can anyone assign all the XRD peaks of the Bentonite clay?

Here I have attached my XRD of Bentonite and organically modified bentonite clay. One peak I have assigned as d(001) from literature. What will the others be?

11 December 2013 1,759 8 View

Why does triazine moiety show antimicrobial activity?

I am working with triazine based hyperbranched polyamine which does not show any antimicrobial activity. But all the triazine based polymers showed antimicrobial activity in the reported literature.

09 October 2013 4,690 4 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

Apart from Nanosilica and CNT's what are the other nanomaterials readily available to use in concrete mixture?

Nanotechnology in concrete materials

01 March 2021 3,379 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

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

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

Jerzy Kowalczyk

copper metal is the best with Cu2O layer - red-ox properties

L'Hocine L.H" Yahia

Copper oxide nanoparticles are a little more toxic than copper nanoparticles.The key factors that result in toxicity include particle size, concentration, morphology, dissolution, exposure routes, and structures, etc