Which transition metal salt precursor is best for doping? Why?

I would like to synthesize a transition metal doped TiO2 via solgel method. Hence, I would like to know which metal salt precursor to choose among Chloride, Nitrate, and Sulphate. A clear...

27 February 2021 4,285 3 View

Sequence of an unknown Oligonucleotide ?

Hi All, I do have a single-stranded oligonucleotide of 100 - 150 bases synthesized and the sequence is not known. How would I proceed to know the sequence .

04 February 2021 5,614 3 View

How to separate solid NHS-folate during the folic acid activation?

Am functionalizing the metal nanoparticle with folic acid. in the process I have taken folic acid in DMSO and added DCC and NHS to activate the carboxylic acid group of folic acid in the standard...

01 February 2021 9,890 3 View

In online GC-FID/TCD connect to flow reactor, why I am getting instable peak area in FID in every injection under same conditions?

We have online GC-FID and GC-TCD (Mod: 2014) connected with flow reactor system. This GC-FID/TCD is connected to a gas line coming from flow reactor system which I used for cascade reaction. In...

11 November 2020 4,999 6 View

Please suggest that the way of obtaining the concentration (in mol) from the gas mixture (N2=98%, Ethylene=1% and Butadiene=1%) is correct or not?

I have a gas mixture (N2=98%, Ethylene=1% and Butadiene=1%). I want to obtained the molar concentration of each components for 1mL volume of the gas mixture. For that purpose, I have used the...

29 September 2020 6,233 1 View

What should be the minimum and maximum dopant concentration to achieve best photocatalytic activity of any semiconductor?

I am working on modifying the band structure of TiO2 semiconductor for visible light photocatalytic activity. For this reason, I would like to dope the metal and/or nonmetal ions into the TiO2 to...

23 September 2020 1,063 6 View

Standard curve and drug concentration for release behavior of drug?

I am working on drug loaded nanoparticles and their release behavior using dialysis membrane tubing method via UV-Vis spectrophotometer (nanodrop) and standard curve. For example, if i loaded 10...

17 September 2020 7,126 4 View

How to calibrate a GC-FID where two of the components are gas phase & others are in liquid phase?

I am new in GC-FID and TCD measurement technique. I will analyze a gas stream at high temperature above 190 oC in the GC-FID system. I want to construct a calibration curve for the mixture of...

08 September 2020 6,073 3 View

Anybody has an experience on the DSSAT 4.7 model ? please let me know?

I am working on the DSSAT model, its a little bit harder than I think please help me?

04 May 2020 5,708 3 View

Are antibiotics effective in preventing or treating the COVID-19?

Any drug/vaccine preventing corona virus

21 April 2020 1,638 26 View

Looking for Materials with high thermal expansion coefficient and high temperature resistance?

03 March 2021 8,272 1 View

How to grow E.coli on the low salt LB agar plate with 50 or 100ug/ml of Blasticidin?

Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...

01 March 2021 2,027 2 View

Are there lab markers/pens resistant to Roti-Histol?

Hi, I'm looking for a pen/marker to write on the smooth, transparent (non-frosted) part of microscopy slides which does not get washed away by alcohols and most importantly Roti-Histol. I want to...

24 February 2021 9,902 5 View

I have a problem with kanamycin - why the kanamycin doesn't affect?

Hi everyone, I need to expression of GFP with pET28 plasmid in E. coli BL21(DE3) plysE. Transformed cells have kanamycin and chloramphenicol resistance. Normally, only transformed cells should...

22 February 2021 4,032 4 View

How does elongation affect the resistance of an electrode?

What are the testing rate for electrodes recommended by ASTM for cochlear implants. I am currently doing the 15mm/min elongatio testing.

22 February 2021 1,515 1 View

Resistivity of PVD TiNx thin films vs. N2 flow?

In the PVD of TiN thin films (~100A), I've found the resistivity of the TiN films dropped from ~100 to 60um*cm with N2 flow increasing up to the metallic mode ending point; then the resistivity...

21 February 2021 1,864 2 View

Where can the fault diagnosis data set of lithium battery be found?

Most of the data sets on the network only contain good information about the voltage and internal resistance of lithium batteries. The data of faulty battery is missing. Who can help me, I will be...

21 February 2021 8,659 1 View

How to produce huge amount of protoplasts from Fusarium graminearum?

Hi, all I am using some protocol for protoplast production from Fusarium graminearum (Fg), but I need them in a huge amount. Sometimes the protocol worked well but most of the time failed....

14 February 2021 2,286 4 View

Recommendations on CO2 Resistant Rocking Shaker?

A certain protocol we have developed requires the use of a Rocker/Rocking Shaker in which our dishes with cells are maintained in the incubator. The rocking is essential to the protocol but we...

09 February 2021 3,291 1 View

Which is the most accepted taxonomy in Resistance to Change literature?

I am searching for a well accepted taxonomy of resistance to change and in terms of its underlying causes/roots.

04 February 2021 497 3 View