Hi all. I'm wondering if there is any differences between surface state and surface energy traps regarding fluorescence mechanism of carbon dots (CDs). If yes, what is the main difference between these two different mechanisms.
Salam all. according to the reported work in the literature, some authors used strong acid (like refluxing with HNo3) in conjugation with carbon-based precursor, while others used base such as...
11 December 2019 9,582 3 View
Hi experts. can anyone give me some details about the advantages of FWHM? is the narrower better than wider? and why? How to explain that in a scientific way so that it can be clear for any reader...
07 August 2019 8,625 8 View
Based on response surface methodology (RSM) of the design experts software, two-dimension graph were obtained. The influence of two independent variables (X1X2) on the response (QY) is shown in...
04 May 2019 8,857 4 View
Hi experts.. Can you explains why the excitation-“dependent” emission of aqueous N-CDs suddenly changed to ”independent” while binding with PVA (solid film). Is this related to PVA nature? Please...
04 May 2019 3,113 1 View
Hi all. According to the following mixture info., how to calculate the concentration of as-formed carbon dots (CDs). The initial amount of raw precursor = 0.05 gram. The mass of nitrogen element...
31 December 2018 4,585 0 View
As we know that polymer carbon dots (PDs) and graphene carbon quantum dots (GCQDs) are two types of carbon dots (CDs). How to distinguish between them so that we can decide that our synthesized...
11 December 2018 8,195 0 View
Hi all. what other alternative chemicals can be used as a cross linker for coating nanomaterial on the surface of fiber optic sensor based on layer-by-layer assembly. For instance,...
10 November 2018 2,844 3 View
Based on FTIR and XPs analysis, how to confirm that the obtained carbon dots (CDs) has (-COOH). In which form these groups can present in our material where C-C, C-N, O-H, C-H, C=O, C-O and C-O-C...
07 August 2018 2,171 5 View
Hi all. Can you suggest me an easy software for drawing any chemical reactions.
06 July 2018 2,788 0 View
Can any one please explain to me the easiest way to calculate the concentration of fluorescent carbon dots obtained from natural resources and added to nitrogen doping agent (N-CDs). It would be...
05 June 2018 10,245 0 View
I tried four trials of the same Copper Phosphides sample in Alkaline medium ( 0.5M KOH) with Hg/HgO reference electrode and Pt as counter electrode. I used 0.001 V/s scan rate for first three...
10 August 2024 3,629 1 View
How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests)...
10 August 2024 942 3 View
I am using Rhodamine6G as gain medium and silver nanoparticles as scatterers on a microscope slide and laser input 532 nm comes from above.
09 August 2024 9,894 2 View
How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?
09 August 2024 3,291 2 View
I need to do some experiment with it in liquid form.
07 August 2024 613 3 View
Global ‘Weather’ has stopped, as ‘aqua thermionic instituted by the ‘Global thermo atmospherics has instituted global thermodynamics of 120º C + and thus all waters are, or have boiled into a...
06 August 2024 8,716 0 View
After immunohistochemistry of previously fixed in PFA and EtOH and then frozen 20 μm sections of zebrafish brain, DAPI staining is very weak (right) compared to the same sections stained without...
05 August 2024 9,637 2 View
Are there any fluorescently labeled anti-Alpaca secondary antibodies raised in Donkey? So far I have only been able to find anti-Alpaca secondaries raised in Goat. Or is this not possible due to...
04 August 2024 4,255 1 View
Hello. I am working on ROS production of two systems: system A is cerium oxide and hydrogen peroxide, system B is cerium oxide nanoparticle, hydrogen peroxide and potassium bromide. I did some...
04 August 2024 5,974 3 View
How to calculate the molar proportions of the oxides from the XRF analyses?
02 August 2024 2,565 2 View