Selective and sensitive detection of cinnamaldehyde by nitrogen and sulphur co-doped carbon dots: a detailed systematic study

Abstract

Nitrogen and sulfur co-doped carbon dots (NSCDs) have been used as a fluorescent probe for the sensitive and selective detection of clinically important organic aldehyde cinnamaldehyde.

Bioinspired and eco-friendly high efficacy cinnamaldehyde antibacterial surfaces

“…3. 61,62 Polydopamine coated quartz showed a weaker UV-Vis absorbance peak at l = 290 nm, as well as broad absorption across the 200-800 nm wavelength range, Fig. 3 63 Polydopaminecinnamaldehyde coated quartz exhibited a strong absorbance at l = 288 nm, which can be attributed to either or both of the cinnamaldehyde and dopamine coating constituents.…”

Facile Synthesis of N, S-Doped Carbon Quantum Dots from Food Waste as Fluorescent Probe for Sensitive Detection of Thiamphenicol and Its Analogues in Real Food Samples along with an Application in Bioimaging

“…The peaks located at 1050 cm −1 and 787 cm −1 correspond to the C-O stretching vibrations and in-plane bending of the C-O bond [ 29 ], respectively. Lastly, a strong N-H stretching vibration [ 34 ] was observed at 669 cm −1 . Consequently, these FTIR spectral data demonstrated the existence of C=O, -NH 2 , -OH, and C-S and C-N functional groups on the surface of N, S-CDs.…”

“…It is apparent from Figure 2 d that the XRD pattern of N, S-CDs displayed a typical wide peak at about 23.6°, which can be interpreted as the (002) planes of the graphitic carbon structure, confirming the amorphous carbon structure of N, S-CDs [ 21 ]. This observation may be attributed to the rich nitrogen, sulfur, oxygen, and other functional groups introduced [ 34 ] by the N, S-CDs sample. The surface functionalization process of N, S-CDs was further studied by XPS spectra.…”

Cinnamal Sensing and Luminescence Color Tuning in a Series of Rare-Earth Metal−Organic Frameworks with Trans-1,4-cyclohexanedicarboxylate

“…Such behavior is reasonable, as free cinnamal in solutions has an intensive absorption band with the maximum at ca. 288 nm [ 41 ] and demonstrates a strong interaction between the adsorbed cinnamal guest molecules and the host luminescent framework. Note that clear DMF solutions of cinnamal with the same concentrations were used for a baseline correction.…”

“…Despite generally low toxicity for human and occurrence in various common consumption goods, cinnamal is known to evoke allergic reactions [ 33 ]; therefore, its efficient detection is relevant for healthcare and other practical issues. Although there are a number of developed analytical methods for its quantitative determination [ 34 , 35 , 36 , 37 , 38 , 39 , 40 ], only one method of cinnamal fluorescent detection has been reported using nitrogen and sulfur codoped carbon dots [ 41 ]. To the best of our knowledge, no MOF-assisted techniques have been reported for cinnamal detection yet.…”