I stored Tris solution for one night after preparation. Then it changed to half the crystals.
Previously, I made Pb(NO3) stock in miliQ water and diluted into buffer. But I tried different way yesterday. I prepared 100 uM of Pb(NO3) in buffer 10 mM TA containing 50 mM NaCl, pH: 7.0-7.4 The...
01 February 2020 1,629 2 View
Yesterday I synthesized 13 nm colloidal gold nanoparticles using hotplate stirrer (T= 300 C, s= 600 rpm), the solution boiled for a long time (until bubles out). Even it had already ~ more than 1...
03 April 2019 653 6 View
Normally, I have fresh prepared TAE/TBE buffer. But sometimes I see one of my colleagues who re-use it max. 3 times, Is it corret or not? Does it have any effect to the result? Thanks
02 March 2019 814 3 View
I have DNA (disulfide modifier) has already become the Thiol due to adding TCEP. So I want to make it be disulfide again. Thanks
07 August 2018 466 0 View
I have 25 mM of Tris-acetate pH = 7.4 But, I need 25 mM of Tris-acetate pH = 8.2 for washing my DNA. I read a protocol, the adjuster should be using Acetate glacial. But, I have already adjusted...
07 August 2018 8,066 3 View
I need to block AuNPs surface (space between Thiol DNA - AunNPs) to prevent binding interaction with streptavidin.
07 August 2018 6,721 2 View
Yesterday I prepared 100 mM of MgCl in PBS 1X then sterilized it by autoclave. But my buffer was precipitated. How to prevent this matter? Thanks
07 August 2018 3,929 0 View
I read one paper (Hai-Bo Wang, 2013/DOI: 10.1039/c3nj00328k), he claim that there are approximately 50 strands of DNA probe for each AuNP. But, when I check a table from this paper (please check...
06 July 2018 1,391 1 View
I want to check the DNA strand displacement possibility of my DNA.
05 June 2018 645 0 View
I use that DNA marker in same concentration of gel (10%) and running at 80 V for 80 minutes (everything is the same).
04 May 2018 8,046 8 View
I have modelled a steel structure using beam elements in Abaqus and attached to this structure reinforced concrete slab. The analysis that I am making is heat transfer of the structure. The...
07 August 2024 1,028 0 View
Does anyone tried to do nucleofection with AMAXA by Lonza with lower than recommended amount of buffer in the cuvettes (100 ul)?
07 August 2024 4,616 0 View
Currently, when I run SDS-PAGE, I don't see any bands at all, even though I used the same material just a day ago and it worked fine.... In our lab, we dilute the 10X running buffer to 1X and...
06 August 2024 5,373 2 View
During low-temperature testing, new diffraction peaks that appear could be indicative of several phenomena. In one of our tests, we observed notable new peaks around 40° and 45° in a specific...
06 August 2024 726 3 View
Hello everyone, I'm encountering an issue with my electrochemical impedance spectroscopy (EIS) measurements and would appreciate some insights. Experimental Setup: Electrodes: Gold interdigitated...
05 August 2024 3,783 2 View
Is it the "elution buffer" or the "dialysis buffer"? Note: I'll be using NanoDrop OneC
01 August 2024 967 3 View
What information we can get from PXRD analysis other than from SCXRD analysis of a crystal ?
30 July 2024 6,261 4 View
How to apply magnetic field parallel to b axis of any crystal
29 July 2024 4,083 2 View
Hello everyone! How can i prepare EDTA buffer solution (pH 8.2) to determine GSH levels? Thank you in advance.
29 July 2024 4,374 1 View
I want to preserve the sample leaves for the LM study of the stomata and conidia analysis. Whether 2.5% glutaraldehyde in 0.05 M phosphate buffer with pH 7 can be applied for preservation.
29 July 2024 8,560 0 View