1,2-Distearoyl-sn-Glycero-3-Phosphoethanolamine-
N-[Maleimide (Polyethylene Glycol)2000] ammonium salt [DSPEPEG-
MAL] is poymer and I want to conjugate with some peptide. So Please suggest me any method.
do you want to use an amino or sulfhydryl group from the peptide?
i am coupling 31 amino acid sequences to PEG, before that i have to activated this peptide with traut's reagents. Can anyone suggest me the which molar equivalent of concentration of both chemical...
03 April 2019 1,808 1 View
My super critical fluid extracts (SFE) are immiscible in 1 % DMSO for carrying out Cytotoxicity assay SFE is essential oil so i have problem to mix the oil and 1 % DMSO due to different polarity...
02 March 2019 2,666 2 View
We intend to study the interaction between peptides and polymer (like PP, PE and PS) through MD simulations using Martini force fields ( Martini 2 for PP and Martini 3 for PE, PS). We have...
08 August 2024 4,842 0 View
Hi, we have measured tryptic peptides using both DDA and DIA method on QExactive. In DDA replicates i saw unusual intensity drops occurring at the same sections of chromatograms in DDA replicates...
07 August 2024 3,218 4 View
Hello, I am currently analyzing some phosphoproteomics data, but I have peptides with multiple phosphorylation sites or phosphorylations together with carbamidomethylation or oxidation. How can I...
04 August 2024 8,432 3 View
Recently I'm trying to use Sep-pack C18 1 cc Vac Cartridge (Waters: SKU: WAT054955) to desalt digested peptides. However, the recovery rate is usually 40-60%. What is the normal recovery rate?
31 July 2024 6,544 11 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
For example, if low-density polyethylene (LDPE) is equilibrated with PCB contaminated marine and freshwater sediments, can LDPE-lipid partition coefficients be used to obtain equilibrium...
28 July 2024 263 1 View
Accredited laboratory of JV "Uz-Kor Gas Chemical" LLC (Uzbekistan) is looking for providers to conduct interlaboratory comparison tests on gas chromatographic analysis of hydrocarbons (component...
25 July 2024 8,108 0 View
It has been long known that EDC carbodiimide and NHS easter's half life agains hydrolysis are highly related to pH. However, very surprisingly, not yet found a paper giving a table/chart of their...
25 July 2024 8,738 0 View
For a partition of an integer \lambda, what does the difference \lambda_j - \lambda_{j+1} represent in relation to the conjugate partition, , with \lambda_j being the j-th element of \lambda?
23 July 2024 8,008 1 View
Hi everyone, Can someone explain for me a method to inject VOC collected with Tedlar bag from pyrolysis process and transfer or inject into GCMS. Thanks
22 July 2024 6,398 1 View