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Questions related from Irfan Ahmad
I used Sodium Chloride to change the ionic strength( Activity coefficient) of water. It also contains polycyclic aromatic hydrocarbon(PAH). The solubility of PAH in water is changing with the...
08 August 2019 9,676 2 View
I have a system where both dynamic and static quenching are taking place simultaneously. I have fitted the stern-volmer model. My Kd is 135 ml/mg and Ks 115 ml/mg. What do these constant show...
04 April 2019 7,111 4 View
I am trying dilute synthesis technique with APS and TEMED for free radical polymerization in water. Either it is very slow or it is not working. Which technique is better emulsion or dilute...
08 August 2018 2,036 5 View
I have amidation reaction in DCM using DCC. I can separate the bi-product through centrifuge or filtration. I am wondering what is the best solvent to precipitate the product ? either using cold...
04 April 2018 2,610 4 View
I used Rhodamine B to find the quantum yield of pyrene, but I got it wrong. I was reading some literature and it says that reference dye should resemble your dye ( expected QY and absorption...
03 March 2017 7,504 6 View
When a hydrophobic fluorescent dye is mixed with non-fluorescent hydrophobic molecule, they are making complex and instead of quenching the signal of dye is increasing. Any suggestion why ? Thanks.
03 March 2017 3,627 2 View
As FRET is a sensing technique for proteins/cells etc. Is there a suitable pair that I can use in solution as an example of FRET without conjugating them to anything (Cells/Protein).
10 October 2015 1,866 8 View
I want to use organic solvent instead of water for the synthesis of Hydrogel.
03 March 2013 1,626 8 View
