Green synthesis of nitrogen-doped carbon dots from lotus root for Hg(II) ions detection and cell imaging

Natural‐Product‐Derived Carbon Dots: From Natural Products to Functional Materials

“…Besides this, Gu et al. describe the use of microwave irradiation to prepare NCDs from lotus root to detect Hg 2+ ions . Shen et al.…”

“…[68] The N-doped NCDs can also be used as af luorescent probe for the detection of Hg 2 + and Fe 3 + ions (Figure 10 c, d).B esides this, Gu et al describe the use of microwave irradiation to prepareN CDs from lotus root to detect Hg 2 + ions. [50] Shen et al find that NCDs created from sweet potatob yt he hydrothermal method can be used as fluorescent sensors to detect Fe 3 + ions in biological systems. [48] In addition to NCD-based sensors for cations,s omeN CD-based sensors are able to detect anions.…”

“…[18,19] CDs also have outstanding electronic properties as electron donors and acceptors, which endow them with wide potentialinc atalysis and optronics. [20][21][22][23][24][25][26][27][28][29] The raw carbon sources for CDs can be either man-made [e.g.,c andle soot, [30] graphite, [31] fullerene-C 60 , [32] ammonium citrate, [33] glucose and ammonium hydroxide, [34] and branched poly(ethylenimine) [35] and ethylenediamine] [36] or natural products (e.g.,o range juice, [37] milk, [38] coffee grounds, [39] Bombyxm ori silk, [40] green tea, [41] egg, [42] eggshellm embrane, [43] soy milk, [44] flour, [45] banana, [46,47] potato, [48] Punica gianatum, [49] lotus root, [50] pepper, [51] honey, [52] coriander leaves, [53] garlic, [54] Jinhua bergamot, [55] aloe, [56] rose flowers, [57] limeade, [58] hair, [59][60][61] and rice husks). [62] Most pu...…”

Highly fluorescent carbon dots as an efficient nanoprobe for detection of clomifene citrate

“…Fluorescence probe technique owns high sensitivity and superior spatiotemporal resolutions, therefore can be widely adopted in ion detection, 6,7 food chemistry, 8 environment analyses 9 and targeted antibacterial research 10 through the uorescence quenching interactions between uorophores and guest quenchers. However, the uorescent probe for quantitative analysis of CC is rarely reported, 3 so the construction of efficient uorescent probe for CC detection is meaningful in practice.…”

Green Synthesis of S- and N-Codoped Carbon Nanospheres and Application as Adsorbent of Pb (II) from Aqueous Solution

“…e FT-IR spectrum of N-CNs shows distinctive absorption peaks of hydroxyl and amine appear stretch at 3257 cm −1 and peak at 2919 cm −1 assigned to C-H group. e bands appearing at 1299, 1105, and 1027 cm −1 demonstrate carboxyl groups [25,26]. e FT-IR analysis of S-CNs exhibits the band on stretch at 1038 cm −1 is attributed to C-O, S-O, and C-O-C bonds, while the C-O and C-S bonds appear on stretch at 1194 cm −1 and COO − groups appear between 1396-1496 cm −1 .…”