What are the reasons behind getting a blue shift and a red shift in the same photo luminescence spectrum?

The excitation-dependent feature of nitrogen and sulfur doped carbon dots was discussed from 270 nm to 500 nm. With increasing of the excitation from 270 nm to 300 nm, the maximum luminescence...

11 December 2018 9,637 4 View

What are the reasons behind getting a blue shift and a red shift in the same photo luminescence spectrum?

The excitation-dependent feature of nitrogen and sulfur doped carbon dots was discussed from 270 nm to 500 nm. With increasing of the excitation from 270 nm to 300 nm, the maximum luminescence...

11 December 2018 6,155 0 View

What are the reasons behind getting a blue shift and a red shift in the same photo luminescence spectrum?

The excitation-dependent feature of nitrogen and sulfur doped carbon dots was discussed from 270 nm to 500 nm. With increasing of the excitation from 270 nm to 300 nm, the maximum luminescence...

11 December 2018 7,181 3 View

What are the reasons behind getting a blue shift and a red shift in the same PL emission spectrum?

The excitation-dependent feature of nitrogen and sulfur doped carbon dots was discussed from 270 nm to 500 nm. With increasing of the excitation from 270 nm to 300 nm, the maximum luminescence...

11 December 2018 2,938 7 View

How to calculate the concentration of Carbon dots in the solution?

I have synthesized Carbon dots using Microwave method. The sucrose was dissolved in 10 mL of buffer and then charred in the microwave for 5 mins. After that, the charred area was dissolved in 10...

09 October 2017 7,435 1 View

How to identify contamination in Bacillus culture? Is microscopic examination of stained cells sufficient to probe the contamination?

We are working on bacterial concrete, so while doing the preliminary study we added 5ml of Bacillus licheniformisl solution + 50g of CaCl2 made it to 1L of water after 3-4 hours it showed...

08 September 2017 4,406 1 View

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01 January 1970 4,669 3 View

Why do my MCFs not form monolayer?

Hello, I am looking for some expertise on culturing MCF7s. I purchased them from ATCC and I have been following all media and culture conditions. Media is EMEM with 10% FBS and 10ug/mL of...

27 February 2021 3,904 2 View

Is it possible to have two luminescence bands of the same peak position but with different intensities in single spectrum??

Hi! If it is possible to have two luminescence bands of the same peak position in a spectrum, what is the reason behind formation of two separate bands instead of one? This phenomenon is related...

26 February 2021 4,963 5 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

EMSA troubleshooting. Protein-DNA complex not migrating, cold probe lane with multiple bands. Can anyone help?

I'm running an EMSA to show the DNA binding activity of recombinant proteins versus the Wild type. Previous assays run by my research group using a different test system show the protein-DNA...

24 February 2021 8,325 1 View

How to calculate Z (the number of molecules in a unit cell) for calculating theoretical density?

I am trying to calculate the theoretical density of my ceramics materials. I use the formula below to calculate the theoretical density: Theoretical density = (Molecular weight x No. of molecules...

24 February 2021 3,823 2 View

In methylene blue test Why is UV absorbance reading very low as soon adsorbent is added and then increasing before reaching equilibrium?

Hello, I'm working on removal of methylene blue. 01. in the dark test very first reading is taken 15 minutes after adding adsorbent to the dye solution and that UV absorbance reading is very...

19 February 2021 472 5 View

What is the reason film thickness increased?

what is the reason film thickness increased when increased doping concentrations give some reasons The measured film thickness is 156, 282, 394, 548 and 681 nm for 0, 1.5, 2.5, 3.5, and 4.5 wt....

17 February 2021 8,987 5 View

About XRD details of pristine and doped RGO?

Hi Can anyone please help me know the XRD details of reduced graphene oxide, Nitrogen doped reduced graphene oxide, Sulphur doped reduced graphene oxide, Nitrogen and Sulphur co-doped reduced...

08 February 2021 3,033 3 View

What is the best visualisation solvent for xylooligosaccharides using TLC?

I am interested in using TLC to detect non-linear xylooligosaccharides. What would be the best visualisation solvent? Would aniline phthalate solution be suitable? I have also seen people...

02 February 2021 7,748 3 View