Román Y Ramírez-Rueda

9 Questions 18 Answers 0 Followers

Questions related from Román Y Ramírez-Rueda

Will it be prudent (right) suggest a selectivity index for a natural product from acute toxicity test in C. elegans model using LC50/MIC?

Selectivity index (SI) is used to predict in vivo toxicity from a cytotoxic assay. In my case, I have used C. elegans to determine the acute toxicity of natural products resulting in low MICs....

20 October 2019 2,637 0 View

How to recover the violacein expression of C. violaceum after freezing?

Dear colleagues One year ago I stored my C. violaceum strain (violacein producer) at -80C with glycerol at 15%. In nowadays when I freezed out the vials and did culture the strain, it grew but...

04 June 2019 2,588 0 View

What type of statistical methods are recommended in order to obtain results statistically valid in antimicrobial activity tests like MIC and related?

Several statistical test are proposed in different paper, but any is a standard.

22 November 2017 3,993 3 View

Dear collegues in Brazil or Colombia, does anyone have Chromobacterium violaceum CV026 and ATCC 12472?

Actually I'm working with antimicrobial activity of natural products in my PhD project and we would like to test anti-QS activities of several extracts and oils. Unfortunately we don't have this...

01 December 2016 3,923 2 View

Can we say that the kinetic antibodies in viral infections are the same in all viruses ?

Could we say that in all infection caused by virus or in all population, kinetic antibody response is equal?

15 March 2014 6,277 3 View

What is the bacterial concentration used in microdilution broth for antimicrobial extracts?

What is the volume of bacterial innoculum used in microdilution broth for antimicrobial extracts?

04 December 2012 4,824 16 View

Is tumbling true bacterial motility?

Tumbling

28 October 2012 4,303 10 View

What is the concentration measurement unit more adequate for report antimicrobial activity of essential oils?

And why?

09 September 2012 8,052 22 View

Antimicrobial assays

Finding collegues to collaborate !!

03 April 2011 2,027 17 View