I am astonished not to see any mention to the origin of the photosensitive plates, a material which since a long time is not available on the market, exception made of the Slavich material. Did I read too fast and did not noticed that?
It is said that when comparing the Einsteins's results for the deviation of the light from a star when passing close to the sun, as seen in the famous 1919 eclipse, Einstein himself and the...
05 June 2019 4,110 6 View
Backlight illumination of an LCD monitor is made by a sequence of total internal reflections from the illuminating source. That is why a larger monitor needs a larger and thicker plate. Could the...
04 May 2014 5,969 0 View
I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...
02 March 2021 1,408 1 View
We have HUVEC bought from Invitrogen. Cat no -C-003-5c. while first plating the cells we have bought the protocol suggests not to centrifuge the cell with media to remove the DMSO. Should we...
02 March 2021 3,713 2 View
Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...
02 March 2021 3,584 1 View
We have always used the 96 welled plate, the 48 welled plate but apparently there is much evidence on the 24 welled plate and above all its benefits.It states it is the same you would use on ELISA...
28 February 2021 1,149 1 View
Hi, recently I encountered a protocol for plating which was not the usual method I have been practicing (pour LB agar onto plate, allow it to solidify, pipette bacterial suspension onto plate,...
28 February 2021 7,292 3 View
I need to be able to match in-text citations to a reference list and back again in very large documents (100+ pages) WITHOUT the use of referencing software like Endnote. my method is to type the...
27 February 2021 9,848 1 View
I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...
26 February 2021 8,183 3 View
Hello, recently I am having some difficulties with maintaining the cell culture of primary cells isolated from a skin biopsy (normal and malignant). The coating of culture plates with Matrigel (a...
26 February 2021 6,151 2 View
I am facing difficulties in cloning a 1kb gene into a vector (pJIT163). I have my gene on interest (GOI) in pUC57 and want to clone in pJIT163 using SalI and BamHI restriction sites. I am getting...
25 February 2021 3,221 7 View
Hi all, Can cells be reused after I have seed them onto 96 well plates and test them with cell counting kit at OD450 (CCK8) at 12 hours, wash them with PBS x3 and add new media and let them...
24 February 2021 5,072 1 View