Toxicity of isolated bioactive compounds from plants ?

More Zoheir Mellouk's questions See All

Does the phase-matching play an important role at the nanoscale ?

In general, it is not possible to observe simultaneously all nonlinear effects described by the nonlinear polarizations, because usually only one nonlinear process is phase-matched. In nonlinear...

05 March 2021 5,195 2 View

How to characterize of microalgae pigment ?

Hi everyone; Please I'm studying a new isolated pigment from a local microalgae ! I would like to characterize this pigment in term of structure and composition as well as biochemical properties...

15 February 2020 9,718 3 View

By which molecular mechanisms the altered gut microbiota (dysbiosis) contribute to insulin sensitivity impairment and inflammation ?

A number of studies have associated obesity with altered gut microbiota, although results are discordant regarding compositional changes in the gut microbiota of obese animals. The altered gut...

23 April 2019 6,833 0 View

Is there a observability properties study of nonlinear system for all operation modes ?

To verify if the system satisfies the observability property. Several techniques and tools have been developed to study whether a nonlinear system is observable or not. Generally, the...

14 April 2018 2,992 5 View

Decoupling between flux and torque through DTC control !?

When Direct Torque Control (DTC) is used in variable frequency drives to control the torque of three-phase AC electric motors., you can interpret physically and analytically decoupling between...

13 April 2017 1,483 3 View

Numerical modelling of structural controls on gold-bearing quartz veins. Does this seem attractive for a collaborator?

Numerical analysis Geo-sciences computational methods Mathematical methods in Geology

25 May 2015 7,089 6 View

At present, is there a systematic procedure for the design of a Fuzzy Logic Controller?

No comments !

17 January 2015 798 2 View

How can the optimum settings for automatic controllers be quickly determined?

How can the proper controller adjustments be quickly determined on any control application?

03 January 2015 7,933 4 View

How do you think the uncertain and volatile situation in Egypt can be practically resolved?

The Egyptian spring revolution (January 25, 2011) has not progressed well, and resulted in many problems, and did not resolve democratic or economic problems.

27 November 2013 4,234 2 View

Which solvent is better to dissolve with secondary metabolites extracted from fungi?

I work on MCF7 cell cell for anticaner purpose and I wa to do drug preperation the drug ( secondary metabolites extracted from Aspergillus) My question which solvent is better with these secodary...

03 August 2024 4,725 2 View

What Are the Best Alternatives to the MTT Assay for Assessing Cell Toxicity of Colored Herbal Extracts?

I am currently investigating the cytotoxicity of a series of herbal extracts, and like many studies, I have been using the MTT assay to evaluate cell viability. However, I am encountering a...

31 July 2024 193 4 View

How to select relevant metabolites from multiple annotations ?

I am using the Polyomics Integrated Metabolomics Pipeline (PiMP) for metabolite feature analysis. After annotating my data, I have encountered cases where multiple potential metabolites are...

24 July 2024 5,789 0 View

How can I measure arsenic concentration in a patient blood?

I intend to get an economical and accurate LAB TEST to measure arsenic concentration in blood sample.

23 July 2024 3,654 2 View

What does negative readings in spectrophotometer denote. Was testing TSS content of bacterial cultures?

I was performing estimation of Total Soluble Sugar content in bacterial cultures by Anthrone method. Out of 9 samples, only one sample showed positive reading while others had a negative reading...

22 July 2024 9,576 4 View

How high should the remuneration be for test subjects in psychological research projects in Germany?

I am working on a project proposal (DFG project in Germany). I have the problem that I want to calculate how much funds I have to request for my test subjects (e.g., for qualitative interview of...

18 July 2024 1,690 0 View

What does an additional peak in FTIR between 3100 and 3300 nm affect the quality of the material, benzethonium chloride USP??

I do not know much about FTIR! The material Benzethonium Chloride USP was compared to a reference standard in regards to FTIR, as per the USP testing: Identification B. Infrared absorption (FTIR),...

16 July 2024 6,918 7 View

Asked a separate ways?

Dear all, I have a question regarding ways to separate ammonium nitrate and phosphorus pentoxide？

12 July 2024 3,164 2 View

Why flow rate of MFC for pure NH3 gas decreases with time?

We have been using MFC to control the flow rate of pure ammonia gas. The MFC is placed in an oven at 50 deg. C to avoid blockage due to NH3. However, after a few days of usage, the MFC is unable...

11 July 2024 5,796 1 View

Regarding solubility of Dorsomorphin in DMSO ?

I'm using Dorsomorphin (C24H25N5O) as one component in dual SMAD inhibition of pluripotent stem cells to differentiate into neurons alongwith SB431542. Now as to solubilizing 10mg SB in DMSO for...

11 July 2024 4,832 0 View

Mohammed Ismael Rushdi

Toxicity test and dose response curve befor you reached animal stage.

Zoheir Mellouk

Thank you Mohammed for your prompt replay !

Can you give me more precisions regarding the protocol please ?

Best

Luiz Querino Caldas

I’d rather apply QSAR AND IN SILICO tests in order to ascertain qualitative and quantitive effectiveness /efficacy ans also safety of your compounds

Hi Michael;

Thank you very much for your valuable comments :-)

The assay kit for Cell Proliferation (XTT) is so expensive !

Can I reproduce the same experiment by purshasing the products individually : MTT, PBS...

But the question will be : What about the cell selection (the type of used cells) ??????