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04 May 2016 6,281 3 View
03 March 2021 8,272 1 View
Hello, I would like to ask how to grow E.coli which resists 50 or 100ug/ml of Blasticidin. I have tried many methods by using low salt Luria-Bertain(LB) agar plate. However, no colonies grow. Let...
01 March 2021 2,027 2 View
Hello everyone. I have conducted the research on post harvest longevity of tomato crop using plastic packaging and different doses of chemicals as two different factors. The design of experiment I...
28 February 2021 8,189 3 View
I am trying to identify these 3 genes among some tomato cultivar collections and after aligning some sequences from NCBI, I couldn't find unique sequences to target for specific primers. There...
28 February 2021 606 3 View
Hi, I'm looking for a pen/marker to write on the smooth, transparent (non-frosted) part of microscopy slides which does not get washed away by alcohols and most importantly Roti-Histol. I want to...
24 February 2021 9,902 5 View
Hi everyone, I need to expression of GFP with pET28 plasmid in E. coli BL21(DE3) plysE. Transformed cells have kanamycin and chloramphenicol resistance. Normally, only transformed cells should...
22 February 2021 4,032 4 View
What are the testing rate for electrodes recommended by ASTM for cochlear implants. I am currently doing the 15mm/min elongatio testing.
22 February 2021 1,515 1 View
In the PVD of TiN thin films (~100A), I've found the resistivity of the TiN films dropped from ~100 to 60um*cm with N2 flow increasing up to the metallic mode ending point; then the resistivity...
21 February 2021 1,864 2 View
Most of the data sets on the network only contain good information about the voltage and internal resistance of lithium batteries. The data of faulty battery is missing. Who can help me, I will be...
21 February 2021 8,659 1 View
Hi, all I am using some protocol for protoplast production from Fusarium graminearum (Fg), but I need them in a huge amount. Sometimes the protocol worked well but most of the time failed....
14 February 2021 2,286 4 View