What is the reaction condition for two hydroxyl group condensation?

More Mahnaz Shahzamani's questions See All

What is the latest research in the world in the field of personality and artificial intelligence?

22 May 2024 1,070 3 View

By adding ethanol to salt solution which of the following compounds will be produced?

Sodium Chloride + Ethanol 1) Sodium hydroxide + Chloroethane 2) Sodium ethoxide + Hydrogen 3) sNaCl

25 March 2024 5,065 7 View

What physiological relation exists between the production of beta carotene and starch storage in Dunaliella salina alga under salt stress?

In D. salina in which beta carotene is accumulated throughout the cells, staining with iodine reagent will cause the whole cell to be stained. NOTE: These pictures are copyright. No reproduction...

09 September 2023 6,597 3 View

Would you please tell me some hot topics in adolescents?

hi, i'm going to work on it as my thesis.

03 August 2023 272 8 View

What is Carbonic Anhydrase (CA) Activity Assay protocol?

I need to check the purified bovin carbonic anhydrase activity, can anyone let me know a simple method to check carbonic anhydrase activity?

14 December 2022 4,083 1 View

Do you have any protocol for coating Fe3O4@sio2 nanoparticles with APTES?

I want to prepare fe3o4@sio2@APTES nanoparticles to conjugate with bovine carbonic anhydrase.

28 November 2022 342 4 View

What is the maximum resistance of a conductive composite that can be used for reliable electroencephalography recording?

My goal is to record electroencephalography using a conductive carbon nanotube composite. But, I don't know how many ohms the resistance of this composite should be to provide reliable...

09 July 2022 7,566 0 View

Would you please inform me about "the Markov chain Monte Carlo models" reference to self-learning? And How long usually takes to learn it?

Hi everyone, I hope all of you are well. I need to learn "the Markov chain Monte Carlo models". If you're familiar with it, would you please let me know about a good reference to learn and also,...

12 January 2022 3,088 5 View

Does anyone has the gams code for Fuzzy Best Worst Method ?

Does anyone have the gams code for Fuzzy Best Worst method, and could share it? otherwise if there is any article or source code that would be useful, I'll appreciate your help.

23 August 2021 3,731 2 View

Question about quantification of Aloe Vera polysaccharids formula?

I’m trying to follow your published protocol in article entitle “ Quantification of Aloe Vera polysaccharides by O-Acetyl and UV-Vis spectrophotometry: First Action 2018.14”. All parts are clear...

28 February 2021 6,109 5 View

Geotechnical Engineering (Proceedings of the ICE) time review?

Hello everyone, I recently submitted an article to Geotechnical Engineering (Proceedings of the ICE), and the current status has been listed as "EiC Pre-assessment: Ready" for the past 20 days. I...

10 August 2024 6,493 1 View

How to confirm the site-directed mutagenesis result without performing NGS?

I'm cloning a fragment of 3200 nts into plasmid. The cloning was successful, however, 02 amino acids were mutated. Now I want to fix these 02 aa by site-directed mutagenesis technique using...

08 August 2024 4,645 2 View

Why my colony PCR results of my recombinant bacterial not showing any results?

I am performing ligation of the plasmid and a target gene. The steps I have taken are: 1. Double digestion of the plasmid and target gene 2. Ligation of the plasmid with the target gene 3....

05 August 2024 2,570 3 View

Low-yield gel extraction problem?

I am having an issue with my gel image where my PCR product is not appearing very bright on the gel. When I perform gel extraction, the A260/280 purity value is very low. I used the Qiagen gel...

05 August 2024 9,798 3 View

PCR showing no bands - Master mix and primers didn't mix?

Hello everyone, I performed a PCR yesterday, and the results showed no bands on the gel. Of course, I probably missed some crucial steps, like adding my samples to the PCR strips themselves, for...

31 July 2024 2,406 6 View

Dimensions of an MJ Research 96-well alpha module?

Can anyone with an MJ research / BioRad PCR machine from ~2010 or earlier tell me the external measurements (LxWxH) of the removable standard PCR alpha modules that can be removed from a PTC200 or...

30 July 2024 2,867 0 View

How to retain amplicon yield after Ampure bead cleanup, following a 2-stage PCR protocol?

Hello all, I have been trying to follow a 2-stage PCR protocol used to amplify barcodes of a large yeast library, as per Nyugen et al. (2022) -...

30 July 2024 841 2 View

What should a Mechanical Engineering PhD scholar focus on during their PhD to enhance their chances of securing a postdoctoral position?

29 July 2024 7,714 4 View

May I know the exact Quartile of the journal- Advanced Engineering Materials (Wiley) for material science category?

In some data sources it has been grouped in Q1 and some shows it is Q2.

29 July 2024 4,227 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

Zahra Mazrouei-Sebdani

I think it's possible.

You can do it in slight acidic or basic conditions but the velocity of the condensation reactions in the later is maybe higher than the hydrolysis reactions.

Seyed Razavi

I think it's better to use a coupling agent like brom organosilane or chloro organosilane, that it reaction from one side with your silica filler, and also reaction with your rubber from another side .

Regard