Tunable light emission using crystalline carbon dots

Fluorescent Carbon Dots as Biosensor, Green Reductant, and Biomarker

“…Transmission electron microscopy was used to study the size distribution and morphology of M-CDs. , As shown in Figure a, the dots are of size less than 10 nm. The inset of Figure a shows fringes corresponding to the partial crystalline nature of M-CDs . The “ d ” spacing value of 0.24 nm obtained is attributed to the in-plane lattice constant of aromatic carbon or graphene-like structures. , The size distribution histogram also indicated an average particle size of 6.5 nm (Figure b).…”

“…The inset of Figure 1a shows fringes corresponding to the partial crystalline nature of M-CDs. 52 The "d" spacing value of 0.24 nm obtained is attributed to the in-plane lattice constant of aromatic carbon or graphenelike structures. 52,53 The size distribution histogram also indicated an average particle size of 6.5 nm (Figure 1b).…”

“…52 The "d" spacing value of 0.24 nm obtained is attributed to the in-plane lattice constant of aromatic carbon or graphenelike structures. 52,53 The size distribution histogram also indicated an average particle size of 6.5 nm (Figure 1b). The selected area electron diffraction (SAED) pattern of M-CDs shown in the inset of Figure 1b confirms their partial crystalline nature.…”

Fe3+-induced luminescence quenching in carbon dots – mechanism unveiled

“…The inset showing the lattice fringes at a higher magnitude identifies the interlayer spacing value of 0.2 nm in LA-CDs, which is consistent with the in-plane lattice spacing (100 planes) of graphitic carbon. 14 The particle distribution profile (Fig. 1b) indicates an average particle size of 4.9 nm in this system.…”

Modular configurations of living biomaterials incorporating nano-based artificial mediators and synthetic biology to improve bioelectrocatalytic performance: A review

“…Compared with conventional metal oxide/sulfide semiconductors, metal-free light harvesters commonly exhibit a low toxicity and cost. Several carbon-based materials, such as carbon nitrides (C 3 N 4 ) and CDs with high water solubility, photostability and tunability (with an absorption wavelength > 600 nm), stand out among the most bio-friendly photosensitizers used for photocatalysis (Han et al, 2020;John et al, 2019;Liu et al, 2020a;Zhang and Zhao, 2009). Building upon these advantages, full exploitations of the intrinsic merits of semiconducting carbon-based materials are expected to improve the performance of multidimensional hybrid biomaterials (Table 2).…”