Ninhydrin Test with not so free amines?

Hi, Ninhydrin reacts with free amines but if the amine is bound to some other molecule such as PEG which is further bound to nanoparticles, can Ninhydrin test still be used to estimate the amino...

11 December 2019 3,476 2 View

Conjugating cRGD with amine functionalized nanoparticles?

I have been working with nanoparticles with different functional groups. Usually its well known protocol for conjugating cRGD or RGD with COOH functional group but I have a few particles which are...

11 December 2019 3,688 3 View

Why is my XRD showing peaks s at ~7 and ~19 for Fe3O4?

I tried to synthesize oleic acid capped Fe3O4 nanoparticles and much to my surprise, they provide a strange XRD pattern (when started from 5 degrees (2 theta)). It shows a peak at ~7 (50% relative...

09 October 2018 720 8 View

Measuring size of a nanocube?

Would you suggest measuring the side of a nanocube and mentioning that in the paper or would you suggest writing the diagonal size of the particles ? Thanks in advance.

08 September 2018 8,599 6 View

Why do some particles in TEM images appear darker than other (for example see images attached)?

I am not sure why there is a difference in shade in particles analysed by TEM. Is it just because of the orientation of particles or is there more to it ? For reference I have attached a few...

08 September 2018 7,436 10 View

Sodium Gallate Synthesis?

How do I synthesize and purify Sodium Gallate?

06 July 2018 2,438 5 View

Basis for selection of Solvent?

I have read quite a bit of literature and I found that while synthesizing Fe3O4 nanoparticles, people have chosen different solvents mainly based on their boiling point to favor nucleation or...

06 July 2018 5,817 4 View

Why Sodium oleate is used in synthesis of Iron Oleate?

I was wondering about the role of sodium oleate in synthesis of iron oleate, are there any alternatives? And if we want to make iron linoleate for example, should we use sodium linolate or direct...

05 June 2018 7,758 9 View

Role of diethyl ether in casein isolation?

09 October 2016 2,994 4 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

What is the production process of CaFe ferroalloys?

I looking for ferro calcium production process

03 March 2021 1,755 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

12% ledeburitic cold work tool steel, etched for revealing retained austenite, any help for clarifying?

Hello everyone. Given microstructure image belongs to a 12% ledeburitic cold work tool steel (annealed and tempered). The sample was etched with picral (100 mL ethanol and 4 g picric acid). I...

02 March 2021 4,119 3 View

New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before?

Question to you and THEM, the New Journal, "Integrative Psychological and Behavioral Science" -- do you not know, and have you not seen, this done before? There appears to be a core problem for...

02 March 2021 3,024 2 View

Why the results when using wall thickness and when using shell conduction are different in ansys fluent?

Actually, I am running cfd simulation for a heat exchanger which has two fluids one hot and other one is cold fluid. there is a solid domain between them, which I removed and instead I have used...

01 March 2021 9,537 2 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

How Can I bring as much common elements in steel as possible to calculate stable phase(s) in OpenCalphad?

As I was tweaking step-by-step OpenCalphad6 Macros step1.ocm involving phase and thermal property calculation of a High-speed steel, I could not incorporate more than 6 elements in the steel...

01 March 2021 8,840 1 View

How can you bring two structures together to create an adhesive bond in LAMMPS?

I have created an Ice 1h crystalline structure and an Aluminium substrate structure and equilibrated both at 250K. Now I need to bring them together in a way that an adhesive bond is created....

01 March 2021 3,325 2 View