Why dispersion works best when the source of white light is a point source?

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What is the difference between aptamer treated nanoparticles and functionalized nanoparticles?

If we treat the nanoparticles with aptamer, can't we call it functionalized nanoparticles?

03 April 2017 7,863 3 View

How to synthesize powdered gold and silver nanoparticles so that they do not agglomerate?

Colloidal solution of gold and silver nanoparticles tend to agglomerate when centrifuged.

02 March 2017 9,333 4 View

How many research papers have been published on "Smartphone based sensing devices" in the last 10 years?

I want to make a statistical collection of number of research papers published on "smartphone based sensing devices" on various fields in the last 8-10 years. How can I get the information on the...

03 April 2016 528 0 View

Can we use plano-convex lens for producing uniform illumination?

A plano-convex lens is supposed to make the light rays parallel along the optical axis of the lens. Does it ensure that the collimated beam falling on a surface gets uniformly illuminated?

03 April 2016 7,130 4 View

How does size of AuNPs affects the adsorption of BSA on the AuNPs?

Why different sized AuNPs (spherical) possesses varying degree of affinity for adsorption (binding) with BSA proteins or any other biomolecules?

31 December 2015 6,517 2 View

Where can I find the number of published research papers in a given area?

Can anybody help me in finding the year wise publication record on a given area of research?

31 December 2015 5,099 1 View

How can we improve the selectivity of LSPR based sensing in complex biological media?

In complex biological media, many biomolecules can have the affinity to bind with the nanoparticles' surface but when it comes to selectivity, it becomes difficult to control the selective binding...

31 December 2015 1,709 1 View

Apart from TEM imaging, what are other characterization technique available to ensure binding of BSA protein and Trypsin enzyme on AuNPs colloids?

What are the characterization technique available to ensure binding/ adsorption of BSA protein and Trypsin enzyme on citrate capped gold nanoparticles in colloidal form. It means I want to do the...

11 December 2015 4,212 14 View

Can we say Catalase enzyme and BSA protein as biomolecules?

Can we say that BSA protein and catalase enzyme are biomolecules?

11 December 2015 954 4 View

How does sensitivity (nm/RIU) differ for LSPR in solution phase as compared to LSPR using nanoparticle substrate fabricated using lithography?

LSPR can be studied using noble metal nanoparticles in colloid form and through nanoparticle (of any shape and size) fabricated on a substrate through nanosphere lithography techniques. Can...

11 December 2015 1,146 3 View

Controlling for pupil light reflex when analyzing pupil size time course?

I used eye tracking to examine how participants from two different populations (A and B) react to an image. Participants in population A exhibit larger pupil sizes over time, but they also have...

10 August 2024 3,229 0 View

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

How can I define dispersion for salt in CMG or Eclipse?

How can I define dispersion for salt in Eclipse in a low salinity water flooding code? how can I active interactions between tracer and polymer in Eclipse? Please let me know if you have any idea.

05 August 2024 1,218 1 View

London dispersion in CCl4 vs the dipole-dipoles force strength in CHCl3?

How do you tie-break and rank these two in their strength?

03 August 2024 4,471 1 View

Z-average size from Dynamic Light scattering can it be lower than the original probe size?

Hi everyone, Recently I have been conducting Dynamic Light scattering experiments in a micellar solution at 5 and gel at 37 degrees of Celsius with latex particles of diameter 190-500 nm. While...

01 August 2024 1,168 4 View

While doing Chronoamperometry, when the light is turned off, why the current is not decreasing sharply?

Here, I have used Ag/AgCl as reference electrode and 0.5M KOH.

29 July 2024 4,538 3 View

What is the solubility of Iron (+3) in Bismuth Oxide?

Dear all: I am modifying Bismuth Tungstate with Hematite (Fe2O3), so I would like to know about how much Iron(+3) can form a solid solution in a Bismuth Oxide matrix. Best wishes Marco

29 July 2024 2,163 1 View

Aqua regia not heating up?

I used Aqua regia to clean Au nanoparticles in the used glassware. But for some reasons, it is not heating up upon mixing. The color did change from no color to light orange. The Au NPs on the...

25 July 2024 4,390 0 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

Comparing Liposome Size: DLS Measurement vs. SEM Observation with Air Drying ?

I have an issue with SEM imaging of liposomes. When measured by DLS, they appear to be around 120 nm, but when using SEM with simple air drying, they appear much larger, around one micrometer.

25 July 2024 3,395 3 View