Any evidence showing human eggs undergo stress in vitro?

Well, we read a lot about how in vitro manipulation of oocytes can induce stress and therefore reduce their potential or as people call it "quality". I've been looking into the studies mostly,...

04 May 2018 1,179 3 View

Any fast method to fix bacteria for Atomic Force Microscopy analysis?

I want to preserve the morphological features of the bacteria for AFM analysis and I need a fast method for the fixation! Alcohol make some detachments in the bacterial proteins!! And...

02 March 2017 6,312 4 View

What is the best solvent to disperse zincoxide nanopartices for antibacterial activity?

02 March 2017 5,120 2 View

How we can stabilize and increase the zeta potential of bio-synthesized silver nanoparticles?

my samples agglomerates and show low zeta potential after a week from the synthesis? I use 50 ml of 1mM AgnO3 + 5 ml of bacterial supernatant ( PH adjusted to 9)

31 December 2016 7,902 14 View

What are the most actual issues in the teaching process of middle east universities?

specially for graduate programs.

02 March 2016 8,897 0 View

What do you think about MBEC assay as a method for susceptibility testing of biofilms?

Any further techniques you recommend?

01 February 2016 6,849 2 View

How to make a ready use kit for measuring a new protein found in the serum in mg/dl levels from A to Z?

My professor asked me this question and we had a long discussion about it, any Ideas? I'm thinking about how to separate and purify the protein from the serum, then make monoclonal antibodies...

31 December 2015 1,098 1 View

After synthesis of silver nanoparticles how to concentrate and wash your colloida SNPs?

How I can concentrate my particles and wash them for further testing like for TEM and EDX?

01 January 1970 3,997 4 View

What is the best concentration and volume of PVP to use it as a capping agent in silver nanoparticles biosynthesis?

01 January 1970 7,257 5 View

Why my bio-synthesized colloidal silver nanoparticles do not show any antibacterial activity?

I have synthesized silver nanoparticles by using bacterial extracellular components as the reducing agent. After confirming the presence of AgNPs in our samples I'v tested the resulted colloid in...

01 January 1970 540 9 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

Polymer composites suddenly solidifies?

I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...

03 March 2021 7,540 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

Does Napabucasin soluble in dichloromethane and in ethanol?

I need to prepare a solution of Napabucasin (inhibitor of cancer cell stemness) in dichloromethane. The drug is expensive, so maybe somebody already tried to do it. If it is soluble, what is the...

02 March 2021 9,945 3 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 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