Has anyone tried to scan fluorescence IHC slides with microarray scanner?

I have an old slide microarray scanner (VIDAR Revolution 4200) and would like to give it a "second life", as IHC scanner array (fluorescence dyes), FISH over tissue or similar. Has anyone tried...

24 February 2021 9,210 1 View

What could be the cause to have an E.coli DH10B transformed with pUC18 to grow in MKL + ampicillin but is not LAC+?

Hello everyone, I did a transformation of E. coli DH10B using pUC18 plasmid. The bacterias did grow on MKL medium with ampicillin but the colonies showed a white/pink colour and the medium was...

08 February 2021 9,720 3 View

Has anybody seen research on Generative Adversarial Networks not image / video / autoencoder based?

Searching for Generative Adversarial Networks applications.

09 October 2020 2,316 2 View

Can the crystallinity of starch or other materials be calculated from the birefringent area?

Hi I would like to know if is it possible to obtain the crystallinity of a material such as starch from the ratio of the birefringent area to total area using the images obtained from light and...

30 March 2020 952 5 View

How to integrate OpenComet in Micromanager?

Hello! Has anyone managed to integrate opencomet in micromanager software?? I am installing opencomet.jar at mmplugins folder but it does not appear anywhere in the program. thank you!!

25 March 2020 2,036 3 View

Why gap opening is fixed in instruments when using cone-plate geometry?

Hello I work with starch gels and I am performing experiments using cone and plate geometry with 1mm of gap because that height allows me to handle the samples better. I still can not understand...

28 March 2019 1,532 8 View

Does Golgi-cox stanning work in tissues storaged in sucrose 30% for 1 month before the stainning?

11 December 2018 5,386 1 View

What is the best probe height to measure Caspase-3 with a fluorescence kit using Synergy H1 microplate reader?

Hi, I'm measuring cellular Ca-3 activity with a fluorescence kit (EnzChek Caspase-3 Assay Kit 1) using a Synergy H1 microplate reader. With this current fluorescent kit the final volume to...

01 May 2018 8,793 4 View

How can I draw the spectral and spatial beampattern of a signal?

I have a wideband signal represented in a matrix, such that the number of rows corresponds to the number of frequency bins (N), and the number of columns corresponds to the number of antennas...

04 February 2018 1,900 5 View

If I want to do PCR of Cryptosporidium and Giardia to test, is it better to use a nested one?

05 June 2017 2,654 7 View

I want to performe MALDI-TOF MS for bacterial identification, I would appreciate it if anyone can tell me the matrix solution preparation protocol ?

based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...

26 February 2021 6,799 3 View

Universal bacterial primers targeting a mRNA?

Hi, I'm looking for universal primers targeting a bacterial mRNA to quatify bacterial load by qPCR in a complexe mixture (eukaryote and prokaryote RNA). Ribosomal RNA being depleted, I absolutly...

22 February 2021 9,969 3 View

Does anyone have any ideas why drug-resistant malaria is increasing in Southeast Asia even when those drugs are no longer used?

When dealing with bacterial toxins, there are three varieties of microbes that develop in your petri dish: toxic, resistant, and susceptible. Initially, there are only toxic and vulnerable...

21 February 2021 6,084 5 View

Could you please share your experience with me on the type of 96 wells plate for MIC determination: Treated Vs Untreated and Round-Vs Flat-bottomed?

I am working on the MIC determination of various antibacterial agents (both water-soluble and- insoluble) against S. aureus, MRSA, and S. pyogenes. Some guidelines recommend using round-bottomed...

17 February 2021 7,029 3 View

What are the best cations for preparing competent cells, Ca2+ or Mg2+?

I have been reading various articles and most state that treatment with CaCl2 produces higher efficiency of transformation than MgCl2. Can anyone explain why Ca2+ is better than Mg2+ at...

16 February 2021 8,519 5 View

How much amount of DNA (ligation mix) should I use for transformation?

Hi Fellow Scientists! I am trying to clone my 300 bp insert into a 6 kb vector. I run a few different ligation reactions using (1:3 vector: insert molar ratios) 10, 20,30, and 40 ng/ul vector...

15 February 2021 9,563 6 View

Would using an asRNA for repressing transcription of a high expression Listeria monocytogenes non-coding RNA harbored in a plasmid be a viable option?

Hello all, I am interested in deleting a highly expressed non-coding RNA located on a Listeria monocytogenes plasmid. Currently, there are not any optimized gene deletion methods for Listeria...

09 February 2021 4,994 1 View

Do you have any experience with transfection of EBV immortalized B cells with Lipofectamine?

I know that efficiency of transfection for primary B cells is very low with Lipofectamine. But I did not try that for EBV immortalized B cells. Do you have any experience with transfection of EBV...

05 February 2021 4,159 1 View

Does DNA A-tailing survive after agarose gel electrophoresis and purification?

Hi everyone, I need to clone in pGEM-T vector the result of amplifying a metagenomic library by PCR with a high fidelity polymerase but I only want to clone the fragments of an specific size...

04 February 2021 6,051 8 View

Multiple insertions with Q5 Site-directed mutagenesis?

03 February 2021 221 2 View