Does mesoporous silica NP dissolve in water?

Hi, guys. Recently, I was doing research on mesoporous silica. I used the traditional ingredient to synthesis it, namely TEOS, CTAB, ammounia aqueous, ethanol and water. To my surprise, when I...

06 July 2019 6,656 4 View

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

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 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

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 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

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

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