How anionic and cationic surfactant influences the properties of foam expansion and foam capacity?

14 July 2020 0 9K Report

Badges
Science topic

More Rajesh Kumar Sharma's questions See All

Which type of compound does lamda max of 218 indicate in a uv-vis spectrum of a partially purified compound through column and TLC?

A crude extract of fungal culture using EtOH was subjected to column and TLC and partially purified compound was obtained. UV vis spectrum of the compound/s has max absorbance at 218nm. The...

11 August 2024 9,801 2 View

How does grain and grain boundary affect the ceramic when studying its dielectric properties?

I am not able to get good literature and the physics behind how first these grains and grain boundaries arises out of no where when we make a pellet to study its dielectric properties and then how...

07 August 2024 5,177 3 View

How much Yeast should we add to fermentation media?

I have prepared a liquid broth containing Yeast (S. Cerevisiae) that i need to add from it to fermentation media of lignocellulosic hydrolysate. I need to know based on what parameters do we add...

06 August 2024 662 1 View

How to heat polymer for about 130° without oil bath ?

is there any other way to heat a polymer evenly other than oil bath if so what are those and how to use it

06 August 2024 947 1 View

Reason for discontinuities in my Band structure?

Hey All! I am wondering what might be wrong with my band structure. I did the calculations using VASP and plotted the results using Origin. Although I have tried changing various input...

25 July 2024 2,920 11 View

If my gene of interest has high GC content can it be problematic in sequencing? What kind of error is expected with GC rich gene sequences??

Gene sequencing related trouble shooting

25 July 2024 4,149 2 View

How to dispose off lipids waste?

I am looking for a lipid waste disposal method, keeping in mind the environmental, health and safety aspect of lipid waste. Could someone please provide guidelines or the lowest acceptable...

25 July 2024 637 5 View

What publications should I target as a psychology masters student in the UK?

I am writing a paper as a part of my course. I am new in London and was wondering that what publications should look upto?

21 July 2024 3,538 1 View

How effective has the United Nations been in addressing the conflict and its consequences?

After World War, we have seen the formation of the United Nations. The sovereign body for peacekeeping but with regards to the Russia-Ukraine war it is visible that the UN seems to be ineffective...

18 July 2024 4,674 4 View

What are the main obstacles to achieving a ceasefire or peace agreement between Russia and Ukraine?

It has been a quite long time since the Russia and Ukraine war has been going on and if we see the context of Geopolitics and International Relations we don't see a mediation between the two...

18 July 2024 6,737 4 View

What is the ionic radius of Hydrogen anion? And how to know the exact ionic radii of the elements?

I'm trying to calculate the tolerance factors of the hydride perovskite and the value calculated by me and the reported values are contradictory. Need more clarity in using the correct ionic radii...

01 August 2024 2,614 1 View

How to prepare alcohol foam with high alcohol content?

Hi everybody, I wonder is there a way to prepare foam from iso-propanol/water mixture? The content of this alcohol should be 70 – 80 w.%. I plan to use silicone-based surfactants, I have several...

15 July 2024 3,539 0 View

Transparency oin-in-water emulsion but larger size particle ?

Dear Colleagues, I am currently formulating oil in glycerin/water nanoemulsionn of Thymol and Eugenol, using cationic surfactant. After phase diagram, I got trouble that the clear and...

03 July 2024 4,200 2 View

Staining of foam cells derived from PBMC differentiated to macrophages. Does anyone have experience with this type of assay?

Hi everyone, I am trying to induce foam cells in macrophage differentiated from PBMC. Which type of staining do you prefer to use? Nile Red or Oil RED O ? What concentration and timing of ox-LDL...

01 July 2024 8,286 0 View

I anyone working on synperonic F108 non ionic surfactant?

I have having issue with my DLS results

25 June 2024 2,218 1 View

How surfactant concentration affects the viscosity of nanofluids? Does viscosity increase with the increase of surfactant concentration?

In nanofluids, surfactants play a great role in stability. What is the impact of surfactant in viscosity in nanofluids? If surfactant concentration increases, then viscosity will increase/decrease...

24 June 2024 6,288 4 View

How to calculate current density ?

I am using a rectangle Ni foam electrode area: (0.5 * 1 = 0.5 cm2) for OER and applying material to the area (0.5 * 0.5 = 0.25 cm2) and depositing the same area in the solution. Now, do I need to...

29 May 2024 1,454 5 View

How can i use Keithely B2901A SMU to measure resistance with dynamic loading condition over the flexible Polymer based piezoresistive strip&foam?

I am particularly interested in understanding the real-time response of the material (strip and foam type) to varying pressure loads. I have Keysight B2901A SMU in the lab. Additionally, I would...

27 May 2024 5,556 0 View

Limit concentration of Sulfate in Dionex Ion Chromatography devices and what syringe filter for effective filter Clorine on the solution for IC?

I measured the wastewater sulfate addition with Thermo Ficher Ion Chromatography (IC) (eluent NaOH of 25 mM w/w), as I used standard solutions of sulfate in the ranges of 50 ppm, 150 ppm, 300 ppm,...

27 May 2024 9,103 5 View

Which negative control do you recommend for In vitro Foam Cell Formation Assay?

Hi everyone I have to perform the Foam Cell Assay with OIL RED O staining. Can you recommend a compound that inhibits LDL oxidation? Also, can anyone recommend oxLDL to use?

14 May 2024 6,404 1 View