Green Synthesis of Self-Passivated Fluorescent Carbon Dots Derived from Rice Bran for Degradation of Methylene Blue and Fluorescent Ink Applications

Fabrication of novel quantum dots for the estimation of COVID-19 antiviral drug using green chemistry: application to real human plasma

“…2c) there are four peaks were observed at 283.5, 284.6, 285.4, and 287.5 eV, due to presence CC, C–OH, C–N, and CO groups, respectively. 20,22 For O 1s spectrum has two peaks for C–OH, C–O–C and CO at 529.8 eV and 530.8 eV † 23 . For N 1s spectrum, 2 peaks are observed at 399.8 eV and 401.4 eV, produced due to presence of C–N and N–H as shown in Fig.…”

“…20,22 For O 1s spectrum has two peaks for C-OH, C-O-C and C]O at 529.8 eV and 530.8 eV. † 23 For N 1s spectrum, 2 peaks are observed at 399.8 eV and 401.4 eV, produced due to presence of C-N and N-H as shown in Fig. 2d.…”

Quantification of tyramine in different types of food using novel green synthesis of ficus carica quantum dots as fluorescent probe

“…[ 25,26 ] this is because of self‐surface passivation of carbon particles. As observed in C1s spectrum, there are four peaks present at 283.5, 284.6, 285.4, and 287.5 eV, which are obtained from the C=C, C–OH, C–N, and C=O groups respectively [ 25,27 ] as shown in Figure 3b. However, the O1s spectrum has two peaks [ 28 ] for C–OH, C–O–C and C=O at 529.8 eV and 530.8 eV (Figure 3c).…”

Boron doped fluorescent carbon nano dots for the reduction of ionic dyes and as encryption/decryption QR security code labels

“…In the previous work, it is reported that un doped CDs were made with rice bran as a source of carbon, with a QY of 7.4%. 9 Through this, the effectiveness of boron introduced here as a functional moiety for the functionalization of BDCNDs has been confirmed. Furthermore, the BDCNDs’ strong fluorescence suggests that they are the best probe for fluorescence sensing, bio-imaging, and anti-counterfeiting applications.…”

“…The microwave technique is a quick way to prepare CDs within two minutes but the drawback is that it could not control the reaction conditions. 9 Recently, green technology has been used to synthesize CDs, which has attracted more attention, owing to its low cost and eco-friendliness with high quantum yield (QY). The natural products mainly consist of carbon (C), oxygen (O), nitrogen (N), sulphur (S) and hydrogen (H) elements undergo poly-condensation reaction to synthesize CDs with high surface functional groups.…”