Why to use acid or base for the development of fluorescent carbon dots?

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 9,322 3 View

Full width at a half maximum (FWHM)?

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 8,331 8 View

Anyone can help me to explain this graph?

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 8,695 4 View

Excitation-dependent/ independent emission of carbon dots?

04 May 2019 2,937 1 View

How to calculate the concentration of carbon dots based on the following details?

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 4,365 0 View

Polymer carbon dots and graphene carbon quantum dots?

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 8,012 0 View

Cross linker for coating nanomaterial on the surface of fiber optic sensor?

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 2,670 3 View

How to confirm the existence of carboxylic (-COOH) groups ?

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 1,972 5 View

Free software for drawing chemical reactions?

Hi all. Can you suggest me an easy software for drawing any chemical reactions.

06 July 2018 2,363 0 View

How to calculate the concentration of the as-synthesized carbon dots?

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 10,055 0 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

Does any one know how i can prepare liver tissue with transmission electron microscope with good fixation?

i have problem in preparation of liver tissue with bad cell organelles and how i can adjust osmolarity

03 March 2021 8,890 1 View

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why Trivalent chromium start precipitating above PH 5 ? Moreover discuss difference between adsorption of chromium and precipitation of chromium ?

I am a student of MS Environmental Engineering and started my research phase. I am working on metal removal ( chromium iii ) by using activated carbon prepared from the agricultural feedstock. So...

01 March 2021 5,475 2 View

How UAV or drone can be beneficial to better estimate crop yield?

As we know, crop yield estimation has been done traditionally with farmer's expert knowledge, deductive sampling in representative areas, and remote sensing with satellite imagery. Farmer's Expert...

01 March 2021 3,468 3 View

Which bacteria are suitable for quorum sensing screening?

I want to find a quorum sensing inhibitor from plant extracts. Klebsiella pneumoniae, Moraxella catarrhalis, Staphylococcus aureus, and Streptococcus pneumoniae. I looked for these strains...

01 March 2021 7,675 3 View

Why might my GFP tag be dissociating from my plasmid after transfection?

I have a set of stably transfected cell lines all transfected with plasmids containing GFP tags on the C terminus. During a western blot using anti-GFP antibody, one of my plasmids has dissociated...

01 March 2021 9,310 4 View