12 December 2016 0 10K Report

Dear all,

Oxigen, double bonded to benzene, is carbonyl oxigen?

(e.g. Phenoxide)

Thank you for reading my question.

More Yong Hyun Choi's questions See All
What is proper injection solvent for drug insoluble in water?

Dear all, I use hydrophobic or insoluble drug for injection What is proper solvent that is low cytotoxicity ?

31 December 2016 2,740 4 View

What is the best solvent for pi-pi interaction of CNT with aromatic compound?

Dear all, What is the best solvent or buffer for pi-pi interaction of CNT? Low polarity solvent is good for non covalent conjugation? I wonder that... Thank you.

11 December 2016 2,081 1 View

Biomolecule and polymer have zetapotetial ?

Deat all, I wonder that biomolecule and  polymer have zeta potential. Zeta potential is used in liquid system consisted of collid. So... biomolecule and polymer are colloid?

09 October 2016 10,099 2 View

How to calculate pecent of injected dose per gram of organ ?

Dear all, Total injected dose : 100ug/100uL Gram of organ: 16mg Uptaked Drug concenration in organ: 1ug/mL How to calculate %ID/g ?

08 September 2016 10,223 2 View

How nanoparticles bind with thiolated compound ?

Dear all, Thiolated chemicals can bind to nanoparticle covalently (e.g. gold, silver, quantum dot...) and that is well known. But I have question. What is principle or drive force of...

06 July 2016 1,573 1 View

Why use coupling reagent [ex) EDC/NHS] ?

Good afternoon :) I want to bind carboxylic acid-SAM layer with protein having amino group. In too many paper, coupling reagent is used for 'activation'. I know that carboxyl group react with...

04 May 2015 3,417 1 View

Is Osmium tetroxide necessary for SEM?

I want to make cell sample for measuring SEM but I don't have osmium tetroxide ( I heard it is expensive reagent...) I have to use osmium tetroxide? or negligible? Are there any other alternatives?

03 April 2015 5,272 6 View

Similar questions and discussions
Should I include H atom into C3N5 when i am doing DFT modelling?

Hi all, my experimental XPS results shown that my C3N5 sample consists of N-H bond, hence in this case I should incorporate the N-H bond into my DFT modelling. However, I do notice several papers...

07 August 2024 8,414 2 View

What is the best method to detect the chemical composition of pollen ?

I have multiple small samples of grass pollen with anthers. I want to find a method to identify concentrations of proteins, lipids, and other various elements for these samples. any suggestions?

28 July 2024 5,331 1 View

What is the principle/mechanism behind aging of carbon (graphite) containing refractory mix for isostatically pressed refractories?

The resin bonded carbon containing refractories are aged before use. How time of aging is determined? And mechanism behind aging.

23 July 2024 3,205 0 View

Hi dear researchers, do you suggest the best and shortest path for chemical synthesis and green synthesis of magnetite(Fe3O4)?

Suggest the best and shortest route for the chemical synthesis and and green synthesis of magnetite(Fe3O4) The chemical synthesis should contain the least dangerous chemicals along with full...

21 July 2024 2,476 2 View

Why do fish have fishy odors naturally ?

Chemical Engineering /Food Engineering

20 July 2024 4,152 4 View

Can Langmuir constant related to bonding energy (Kl) and Freundlich exponent (1/n) indicative of ads intensity show opposite trends with temperature?

The adsorbate is Arsenic and the adsorbent is a soil

18 July 2024 332 8 View

How to create parameter and coordinate files for ligand in amber when FATAL error (maybe due to duplicate bond specifications) happens?

Hello, I'm trying to create parameter and coordinate files for a drug (PRG-A01) found on the following page: http://www.probechem.com/products_PRG-A01.html I used the guide made by Michael...

17 July 2024 3,472 3 View

What does an additional peak in FTIR between 3100 and 3300 nm affect the quality of the material, benzethonium chloride USP??

I do not know much about FTIR! The material Benzethonium Chloride USP was compared to a reference standard in regards to FTIR, as per the USP testing: Identification B. Infrared absorption (FTIR),...

16 July 2024 6,918 7 View

What should be consider when do CVD?

I'm trying to create a new substance. Are there any important considerations when fabricating with CVD? For example, lattice constant If you have any such considerations, please let me know.

15 July 2024 9,359 0 View

Is there any possible explanation for the statement written below?

Low magenic concenrartion indicating enhanced chemical weathering associated with warm and wet climate in detrital sediments.

14 July 2024 1,381 4 View

Our partners will collect data and use cookies for ad personalization and measurement. Learn how we and our ad partner Google, collect and use data. Agree & close