Control of Colloid Stability through Zeta Potential/ book?

More Marwah Alnuaimi's questions See All

What is the mechanism that causes antagonism between plant extracts?

what is the mechanism that causes antagonism between plant extracts?

03 November 2023 2,929 2 View

Where should Selenium nanoparticles' absorption peak be located, and at which range of peaks?

15 October 2023 3,569 3 View

Is the inhibitory action due to silver nanoparticles or silver nitrate?

Hi Can silver nitrate solution inhibit bacterial isolates? Is the inhibitory action due to silver nanoparticles or silver nitrate? Please attach references

11 June 2022 6,770 2 View

Is there a special protocol for using DAPI on frozen sections?

I want to try using DAPI on frozen sections. Is the protocol different from paraffin sections? Should i use triton?

30 March 2022 525 3 View

When should Bronchial asthma be phenotyped- at diagnosis or when it is uncontrolled/difficult to treat?

In current era of personalised therapy based upon phenotypes, it is important to understand the endotype/ phenotype of severe asthma. Most of the guidelines recommend phenotyping when it is severe...

29 December 2021 2,595 5 View

Why Absorption bands were observed at 450nm after 24 hrs incubation. not 200 or 300 or any number?

in Green synthesis and characterization of silver nanoparticles using plant extract Absorption bands were observed at 450nm after 24 hrs incubation, why this number??? if 200 or 300nm it also...

03 November 2021 2,186 3 View

A rapid method to estimate the concentration of green synthesis silver nanoparticles?

What is the best way to determine the concentration of silver nanoparticles manufactured by green synthesis?

04 September 2021 5,402 3 View

Nanoparticles how to kill the virus on masks contaminated with it?

If we assume there is a mask contaminated with a specific virus and we spray that mask with a nanoparticle solution and this solution kills the virus / How was this done?

20 April 2021 8,441 3 View

What is the best culture media that could be used to cultivate lieshmania donovani promastigotes in vitro?

Lieishmania donovanni is a blood flagellated protozoan parasite that may infect man and cause visceral lieshmaniasis. Phlebotomus sand fly is the insect vector.

24 December 2020 6,821 3 View

I need more explanations of how biological synthesis silver nanoparticles from a bacterial extract can biodegrade pesticides?have I made a mistakes?

green synthesized silver nanoparticles

24 March 2020 1,588 3 View

I found the zeta potential of exosomes in DLS and it was -8mv. So is it correct or not ?

What should be the zeta potential of bovine milk exosomes

25 July 2024 7,376 5 View

What are the strategies to improve the stability of chitosan nanoparticles in DMEM (cell culture media)?

Hi, I am synthesising chitosan nanoparticles using the ionic gelation method and I am characterising the nanoparticles in distilled water and in DMEM (cell culture), however the zeta potential in...

01 July 2024 1,526 1 View

What is the basic difference between gum and hydrocolloid?

30 June 2024 4,031 3 View

What is the reason of appearance of 2 or 3 peaks in zeta potential analysis of sample?

Hello I have prepared metal nanoparticles and did zeta potential. Normally there is a single peak in sample but now there are 3 peaks. I prepared sample for analysis first I prepared 10 mg/mL...

30 June 2024 1,063 4 View

What does it mean when NucBlue disappears completely during live cell imaging?

Using confocal imaging, I'm investigating the effect of a particular compound on mitochondrial membrane potential in live cells. I've stained the cells with varying concentrations of the compound...

29 June 2024 7,546 4 View

My material is AlSi10Mg made by Selective laser melting. Why i am facing difficulty in EBSD?

1. Which phase should I select during EBSD? 2. Attached image is the polished surface but in your opinion what is on the surface of sample? it is oxide or colloidal? 3. Diamond polishing by paste...

27 June 2024 5,246 2 View

Why I am facing difficulty in EBSD of AlSi10Mg (made by selective laser melting)?

I had polished my sample till 3000 grade manually then done diamond polishing by 3 micron, 1 micron and 1/4 micron (By Diamond paste and aerosol). After that I had done colloidal polishing by 0.04...

19 June 2024 5,343 3 View

I'm stimulating the shaffer collateral but do not want to generate LTP, what herz am I limited to?

I'm a graduate student at UWM focusing on electrophysiology. I'm trying to perform Shaffer Collateral stimulation of CA1 pyramidal neurons. If I were to have a protocol with 6s of no stim, 2...

18 June 2024 318 0 View

Why liposome size increase during storage and after release?

My liposome is a non-phospholipid liposome (sterosome) composed of palmitic acid and cholesterol, 20mg of palmitic acid and 70mg of cholesterol. After a month of storage in a refrigerator at 4...

18 June 2024 1,858 1 View

Why are my nanoliposomes turning purple??

Hello, I am making lipid nanoparticles using the thin film hydration method. Formula is DODMA:DSPC:Cholesterol:DSG-PEG2000 at 60:20:17.5:2.5 %mM in 5mM total. After hydration in sodium acetate...

16 June 2024 6,841 6 View

John Francis Miller

I don't have a copy but I believe this is the author who started the myth about the rule of thumb that you need a zeta potential >25mV for colloidal stability. That has created so much nonsense...

Abdelkader BOUAZIZ

Dear all, you can read ans take information from the link below. My Regards

https://archive.org/details/controlofcolloid0001thom/mode/1up

Marwah Alnuaimi

Thanks for your responses