Published: Jan. 1, 2024
Language: Английский
Published: Jan. 1, 2024
Language: Английский
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(44)
Published: Aug. 2, 2024
Abstract Carbon dots (CDs), as a kind of zero‐dimensional nanomaterials, have been widely synthesized by bottom‐up methods from various precursors. However, the formation mechanism is still unclear and controversial, which also brings difficulty to regulation structures properties. Only some tentative processes were postulated analyzing products obtained at different reaction times temperatures. Here, effect crosslinking on carbonized polymer (CPDs) explored. Crosslinking‐induced nucleation carbonization (CINC) proposed driving force for CPDs. Under hydrothermal synthesis, precursors are initiated polymerize crosslink. The higher hydrophobicity generate hydrophilic/hydrophobic microphase separation, promotes dehydration resulting in Based principle CINC, influence factors size revealed. Moreover, dissipative particle dynamics (DPD) simulation employed support this mechanism. This concept CINC will bring light process CPDs, well facilitate CPDs’ photoluminescence.
Language: Английский
Citations
15Microchemical Journal, Journal Year: 2024, Volume and Issue: 202, P. 110765 - 110765
Published: May 14, 2024
Language: Английский
Citations
7Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 15, 2025
Arginine (Arg) is involved in tissue metabolism and regulates the immune function; thereby, achieving detection of Arg crucial for early diagnosis treatment diseases. Herein, dual ratiometric fluorescence sensors were prepared with blue emission levorotatory/dextrorotatory carbon dots (CDs) red porphyrin (L/D-CDs-PP) sensitive portable Arg. Interestingly, L-CDs-PP D-CDs-PP displayed not only peaks at 493 650 nm but also different response modes to Arg; thus, they could serve as achieve accurate reliable Arg, limit 23.87 μM 2.39 D-CDs-PP. Importantly, solid-state successfully achieved dual-mode visual support a smartphone platform. In addition, exhibited excellent biocompatibility cell imaging capabilities, cells biological samples urine rat plasma. Therefore, broad application prospects fields analytical sensing, imaging, medical diagnosis.
Language: Английский
Citations
0Composites Communications, Journal Year: 2025, Volume and Issue: unknown, P. 102277 - 102277
Published: Jan. 1, 2025
Language: Английский
Citations
0Optical Materials, Journal Year: 2025, Volume and Issue: unknown, P. 116896 - 116896
Published: March 1, 2025
Language: Английский
Citations
0Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 116372 - 116372
Published: March 1, 2025
Language: Английский
Citations
0Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161778 - 161778
Published: March 1, 2025
Language: Английский
Citations
0ACS Sensors, Journal Year: 2025, Volume and Issue: unknown
Published: April 11, 2025
Hard-healing wounds are a serious issue faced by diabetic patients, and the cellular autophagy level is closely related to wound healing progress. However, it difficult monitor real-time levels in living organisms. In this work, we provided new fluorescent sensor IN-NH2 based on modification of 2-substituted quinoline, giving an excellent ability quantify pH fluctuation lysosomes during autophagy. This was successfully applied monitoring model rats, showing potential for exploring internal mechanism between disease progression.
Language: Английский
Citations
0Langmuir, Journal Year: 2025, Volume and Issue: unknown
Published: April 30, 2025
Identifying trace water in ethylene glycol is essential for maintaining stringent quality control chemical processes and ensuring product purity. However, the development of highly sensitive detection methods aqueous impurities within this viscous solvent presents significant challenges, primarily arising from strong intermolecular hydrogen bonding network glycol, which not only masks presence but also interferes with conventional analytical techniques. This work introduces a novel fluorescence-based method that combines simplicity, efficiency, rapid response by leveraging water-responsive carbon dots (CDs). Specifically, we synthesized (WCDs) exhibit enhanced fluorescence anhydrous glycol. Notably, introduction induces concentration-dependent enhancement at 394 nm, establishing linear correlation 0-0.284% (v/v) content range (detection limit: 0.017%, 3σ/S) remarkably low. By exploiting between WCDs cellulose paper matrices, triplet excited states are effectively stabilized, thereby enabling green room-temperature phosphorescence (RTP) emission. enables precise modulation WCDs' aggregation-dispersion through controlled water/ethanol addition, mechanism drives stimulus-responsive transitions RTP. These tunable optical properties validate create new opportunities developing dual-mode dynamic anticounterfeiting technologies.
Language: Английский
Citations
0Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: May 5, 2025
Abstract Room‐temperature phosphorescent (RTP) materials hold significant potential for applications in lighting, anti‐counterfeiting, and multi‐level information encryption. However, regulating RTP emission wavelengths, especially shifting into the red spectral region, remains challenging due to spin‐forbidden transitions of triplet‐state excitons non‐radiative decay. To address this issue, carbon dots (CDs) with different conjugated domain sizes are designed synthesized. The CDs then encapsulated polyacrylamide (PAM), resulting multicolored ranging from cyan (465–635 nm), phosphorescence exceeding 10 s 2 s, respectively. mechanism suggests that enhanced conjugation effect leads energy level splitting strengthened electron coupling, which lowers gap between singlet triplet excitons, ultimately causing a redshift wavelength. Meanwhile, introduction hydrogen bonding protects excited state electrons, suppresses transitions, induces CDs. These applied encryption time‐delayed LED illumination, offering novel strategies high‐security technologies advanced optical devices.
Language: Английский
Citations
0