I added spes to DMF when titrated with naoh it turned milky and precipitated ? what solvent to use to find degree of sulfonation of sulfonated polyethersulfone by acid base titration
I have .dat file, how do I generate the hydrogen bond plot? Is any software required or I can use Excel? I attached the .dat format.
13 January 2024 548 0 View
Hi, I am currently trying to isolate RNA from whole blood. I have frozen blood samples - preserved in RNAlater stored at - 80. Samples were collected in RNA later (300 ul blood sample and 1.3 ml...
12 October 2023 267 3 View
Hi, I want to draw supercell in VESTA with two different style like space filled and wireframe. Is it possible to draw structure such way in VESTA?
13 June 2023 5,601 1 View
I had cultured primary human lung cancer cells derived from needle biopsy sample after isolation. For 10 days cells were greatly healthy and good in number. I had two different cells from...
09 January 2023 2,322 1 View
The exosomes are purified from the blood samples from the patients. I want to know a protocol to isolate DNA from these exosomes that gives high yield.
16 March 2022 178 1 View
I am performing sandwich and indirect ELISA, but the ELISA test is failing to meet the assay acceptance criteria of the slope of 4PL curve, what could be the possible area that should be explored?
17 December 2021 350 2 View
I want to know can mobile phones apps which use PPG be used for HRV measurements. I want to use it for my research study comprising of more 150 participants.
23 August 2021 9,301 4 View
I'm curious to know if there are any audio signal processing algorithms existing for estimating the impact of collision through processing the sound generated by the impact
13 April 2021 4,750 1 View
I have tried isolating stemphylium and alternaria on PDA several times but unfortunately I am unable to get proper results. The method I have followed is surface sterilization of the diseased...
21 March 2021 5,882 6 View
I'm having an audio sample hitting aluminium object of known mass at varying speed, I'm trying to calculate the force the object is hitting using with the audio signal so that the extent of damage...
27 May 2020 6,604 0 View
I need to do some experiment with it in liquid form.
07 August 2024 613 3 View
Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.
07 August 2024 8,782 3 View
Dear readers, Thanks for your attention. I am wondering about the health economic problem of quantifying the value of interventions which a) prevent, b) improve symptom profile and c) ultimately...
05 August 2024 3,246 1 View
I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...
03 August 2024 4,725 2 View
Hello everyone, I need to dissolve stigmasterol for an animal experiment, but it hasn't dissolved in either DMSO or vegetable oil. Can anyone recommend the best solvent for stigmasterol?
01 August 2024 7,504 2 View
I am attempting to conjugate PEG to an amino acid at the C-terminus, for the purposes of producing nanoparticles. I have been told that PEG modified with amine groups can be used for this purpose,...
31 July 2024 2,033 1 View
Hi, researchers, Is it possible to use a safer acid instead of monochloroacetic acid to convert bacterial cellulose to carboxymethyl cellulose?
29 July 2024 4,570 0 View
Hello Everyone, While doing Boehm titration, We use nahco3 in order to determine carboxylic acids. Then the mixture was agitated. After a while, the solution was filtred and HCl was added. After a...
29 July 2024 4,048 4 View
I am currently performing cell-free DNA (cfDNA) extraction from plasma using an in-house developed kit that employs silica-coated magnetic beads. My protocol works effectively with plasma obtained...
28 July 2024 3,559 0 View
I have been looking for the principle of Cysteine-carbazole-sulfuric acid reaction in research papers and books, but couldn't find it. This reaction is mainly used for the quantification of...
23 July 2024 3,891 0 View