What risk associate with monocyte based therapy in clinical use?

14 February 2017 4,855 1 View

How to measure the density of reduced graphene?

I want to measure the electrical conductivity of reduced graphene oxide that I made. I need density data to measure the electrical conductivity.

06 January 2014 2,232 3 View

What is the effect of hydrothermal process on graphene synthesis?

I use Zn powder to reduce the graphene oxide. After the reduction process I use hydrothermal process to continue the synthesis process.

17 December 2013 8,978 1 View

How to prove Babushka-Aziz inequality?

Wondering if anyone can prove this theorem, or has a hint! Theorem: For any q in L_0^2(omega), there exists w in H_0^1(omega) with div w =q and a constant c such that ||grad w||

06 December 2013 4,210 3 View

What is the function of NaNO3 in graphene oxide?

Can I replace the natrium nitrate with the other like HNO3?

08 September 2013 5,023 13 View

Has someone ever reduced graphene oxide to graphene by Zn Powder?

I have researched the journal about this topic, but still don't understand about the process and the reaction mechanism about the reduction process.

11 July 2013 5,798 14 View

Do the antibacterial and cytotoxicity has a correlation?

I am currently working on cytotoxicity of bacterial extract, the extract is already known to have a antibacterial activity against Staphylococcus aureus from previous research. I am willing to...

01 January 1970 113 7 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 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

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

Do you kow of any database containing data on retention time, log P and polarizability for a large number of molecules?

Hi, I am a chemistry undergraduate doing my dissertation project on HPLC. In my project, I need to predict the HPLC retention time of 20 aromatic molecules, the calibration set. To do this I will...

24 February 2021 2,602 1 View

Any easy method of analyzing vitamin D in foods by HPLC?

Looking for method of extracting and analyzing vitamin D in foods by HPLC

24 February 2021 7,524 7 View

Is it efficient to do liquid biopsy to investigate the gene expressions of the tumor?

To do liquid biopsy and look for specific gene expressions there are so many published papers. Thera are different protocols and procedures used to isolate circulating cell free RNA or mRNA from...

23 February 2021 7,326 5 View

What HPLC Marker(s) should be used to detect anthocyanins in a sample?

What HPLC Marker(s) or standard is used to detect and quantify anthocyanins such as Delphinidin, Cyanidin in a given sample of plant extract?

23 February 2021 1,832 4 View

HPLC baseline failure (ACN/Water)?

My baseline increases without any explanation, it is only fixed by changing the solution B, will it be the column? Reagents? Bomb? Detector? Solution A: H3PO4 0.01% IN WATER Solution B: H3PO4...

21 February 2021 5,656 3 View

Which vial septa the right one to be used for HPLC?

This is the unanswered question stored very long in my mind and till now I could not find a right answer. Google search educated me that the red surface is the PTFE material compatible to wider...

21 February 2021 546 3 View