Does aggregation of nanoparticles have a strong effect on their specific surface area?

I've been doing adsorption of heavy metals using nanoparticles as adsorbant. Typically, there are two ways of adding the adsorbant(i.e. the nanoparticles). One is to add the suspension of...

08 September 2017 9,076 8 View

Why calcination doesn't destroy carbon backbone in making active carbon?

When we make active carbon with calcination method, we usually make the temperature as high as 600 degree C or higher. The carbon backbone structure maintained as a result. But why doesn't the C-C...

06 July 2017 836 3 View

How can I choose a proper model for fitting my SANS data?

09 October 2016 7,435 3 View

How to fully hydrolyze PtBA into PAA?

I've been doing hydrolyze a PtBA polymer into PAA. I found there are many researchers doing this with TFA in DCM solution of PtBA. However, I tried this method for several times, the solution of...

08 September 2016 1,062 3 View

Does the mineral oil on NaH affect subsequent reactions?

I have been doing an end-group reaction of polymer. The former step of this is a substitution reaction using NaH(I used it directly without removal of the mineral oil). However, after many times...

07 August 2016 532 2 View

Why is the study of cyclic polymer not as heated as we expect?

These two decades, the synthetic strategy of cyclic polymer is heated studied. However, the applications of such polymer are not as much as people expect. Especially these years, the investigation...

07 August 2016 2,934 3 View

What is the lower limit of Mw that static light scattering can determinate ?

04 May 2016 6,813 4 View

How can I obtain a single peak(without slow mode) when measuring dilute polymer aqueous solution with DLS?

I ve been doing some experiment on PNIPAAM dilute aqueous solution. However, when measuring the size of each polymer molecue, the DLS result always shows two peaks, namely a fast mode and a slow...

01 February 2016 6,050 6 View

How long it will take for interpolymer complexes to reach their equilibrium state in dilute solution?

As we know, some certain pairs of polymers can form interpolymer complexes in solution which can be detected by scattering or other method. However, in preparing such samples(or change pH...

11 December 2015 3,014 1 View

Can micelles formed by block copolymer break up?

I have been doing some research on forming micelles that are formed by block copolymers. I want to know that if the concentration of the system get lower than cmc, will the micelles break up and...

10 November 2015 3,625 3 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

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

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

Why am i not getting solid after reacting APTES with salicylaldehyde?

The reaction of APTES with salicylaldehyde in ethanol leads to the formation of imine compound yellow solid which is mention in literature, but I am not getting yellow solid I don't know why? when...

28 February 2021 2,955 2 View

How to replicate the well conditions of a crystal hit with 20%(w/v) isopropanol?

I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?

25 February 2021 9,761 1 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

How to best wash a 96-well plate containing microplastic?

I am planning my protocol for my dissertation for an experiment quantifying bacterial (E. coli) biofilm formation on micro-plastic (5mm discs of polyethylene bags) by conducting a crystal violet...

23 February 2021 7,868 2 View

Are there any known solvothermal methods to synthesize MoS2 nanosheets using solvents other than water (like ethanol/ethanol-water mixture) ?

I need to synthesize MoS2 nanosheets by alternate methods without pure water as a solvent.

22 February 2021 9,246 1 View

What is the best etching method for Mg-Ca alloy?

I have used Picral etchant (4.2 g Picric acid, 10 mL Acetic acid, 70 mL Ethanol, 10 mL distilled water) but it didn't work. Is there any alternative?

21 February 2021 2,558 5 View

Any Homemade Organic Synthesis Practices?

Hi everyone, I am a teacher of Heterocycles Synthesis, Is there a home practice that you recommend for undergraduate students? A simulator would also be useful Due to the pandemic, students...

18 February 2021 2,769 4 View