I have synthesized a hexafluorophosphate salt of and Ir(III) cyclometalated complex. I have tried using a DEAE anion exchanger sephadex but that did not convert the PF6 to Cl. Is there another way to achieve a conversion?
So i have a few peptides (synthesized by SPPS and not cleaved from resin) and I want to add a maleimide label. We have NHS-PEG-Maleimide and from literature it is evident that the free amine group...
18 July 2024 4,074 3 View
I have repeated an MTT assay three times using different batches of the same cell line. Each time, I tested the same treatment (different medium) and seeded the same number of cells. Additionally,...
08 July 2024 1,900 1 View
I am following the NEB protocol to perform SDM with Q5 and NEB HiFi Assembly. I am making a two base pair change. First picture is my Primers designed with NEBaseChanger. Second Picture is my...
24 June 2024 6,079 4 View
I have a very polar alcohol (soluble in MeOH, H2O, partially in heated DMSO). And a long chain fatty acid that I would like to couple. I can't find a common solvent for them. I can form the...
24 June 2024 9,318 0 View
Hi, In a previous question I asked how to effectively model springs in Abaqus. However, I figured out the feature under Assembly -> springs/dashspots -> node to node Springs. I have a cylinder...
20 June 2024 892 3 View
Hi, I am trying to complete a buckling analysis on a tube with an external pressure. This solves itself easily by adding radial constraint on the internal edge of the tube, one axial constraint...
17 June 2024 8,165 7 View
I'm interested in the earliest days of placental terrestrial locomotion in large herbivorous taxa. Phenacodus seems to be transitional in this regard. Any others?
06 June 2024 5,182 2 View
Hey everyone! I'm doing peptide synthesis on Rink amide resin and sometimes I need to add amino acids with secondary amines or beta amino acids. Normally I synthesize 35 to 40 mer peptides. As a...
21 May 2024 9,035 0 View
Sometimes TCSPC curves are analyzed using the actual photon counts, and sometimes they are normalized with the signal running from 0 to 1, or even from 0 to some value less than 1. What quantity...
20 May 2024 4,276 0 View
I am currently using CASTEP version 22.11, and I encounter the following error when running calculations with spin-orbit coupling: Error with dsytrf in nlpot_prepare_precon_ks Current trace...
19 May 2024 4,236 5 View
Approximate concentrations are require in compared with the WHO permissible limts
11 August 2024 2,722 1 View
I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...
10 August 2024 4,003 2 View
Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...
09 August 2024 5,439 7 View
How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?
09 August 2024 3,287 2 View
One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...
08 August 2024 6,689 1 View
I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...
04 August 2024 1,200 2 View
I am working on developing a MATLAB Simulink model of Wind turbine with PMSG followed by MPPT Boost converter. I have gone through so many literature and videos but I am not finding clear solution...
03 August 2024 887 1 View
Why is nonpoint source pollution potentially more harmful and difference between point and nonpoint sources of water pollution?
01 August 2024 1,180 2 View
I'm trying to calculate the tolerance factors of the hydride perovskite and the value calculated by me and the reported values are contradictory. Need more clarity in using the correct ionic radii...
01 August 2024 2,613 1 View
How do living organisms play a role in the water cycle and why is nonpoint source pollution potentially more harmful than point source pollution?
01 August 2024 7,061 2 View