Revealing a Competitive and Slowed Reaction Mechanism by Using Synchrotron Radiation-Based Semi In Situ Techniques on the Structure Evolution of Functional Carbon Dots

ACS Nano, Год журнала: 2025, Номер unknown

Опубликована: Апрель 20, 2025

The production of stable carbon dots in large quantities for use industrial or clinical applications has remained a challenge, particularly with regard to the preservation specific functional molecular groups. Synchrotron radiation-based analytical techniques have been used study reactions occurring during formation dots. Based on this technique, reaction mechanism intramolecular competition hydrothermal synthesis was found. competitively reactive groups result slowing rapid polymerization and carbonization inhibiting intermediate active substance (5-hydroxymethylfurfural). This slowed controlled reaction, ensuring retention desired group surface Through strategy, there were significant improvements process capability indexes Cp Cpk synthesized dots, which increased by 32% 56%, respectively. improvement ensures consistent granularity product from batch batch, resulting engineered In addition, number amino acid molecules could be produced mechanism, can specifically taken up tumor cells via glucose transporters, meaning that these potential transformation.

Язык: Английский

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Balance Between Energy Migration and Thermal Quenching: Solid Solution Strategy to Highly Boost the Quantum Yield of Copper(I)‐Iodide Cluster

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract Cu(I)‐iodide clusters have attracted broad attention due to their outstanding photoluminescence properties. However, commercial viability is often constrained by moderate quantum yields. In this work, a solid solution strategy employed synthesize heterometallic cluster 3·Cu/Ag , achieving nearly 18‐ and 10‐fold enhancements in yield (up 86.10%) relative the monometallic 1·Cu 2·Ag respectively. Detailed investigations reveal an unprecedented mechanism balancing energy migration thermal quenching, which underlies intense emission distinct thermochromic behavior of under both cryogenic ambient conditions. These findings highlight potential applications luminescent thermometer, multicolor displays, solid‐state lighting technologies.

Язык: Английский

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Lyophilized Tumour Cell-Loaded 10B-Doped Carbon Dots for Simultaneous Boron Neutron Capture Therapy and Enhancement of Antitumor Immunity of Prostate Cancer

Journal of Materials Chemistry B, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

10B agents are critical components in the application of boron neutron capture therapy (BNCT) for tumor treatment. The development a multi-functional agent plays an important role BNCT. This study presents pioneering lyophilized-tumour-cell-based approach enhanced accumulation 10B-doped carbon dots (10B-CDs) within tumour tissue, irradiating thermal neutrons to treat prostate cancer. In this platform, lyophilized RM-1 cells function as both cell antigens and delivery vehicles 10B-CDs. design facilitates co-delivery 10B, thereby changing immune status from "cold" "hot" prolonging retention time 10B-CDs vivo. Prostate cancer killed by BNCT mediated not only damage DNA, but ferroptosis is also underlying mechanism. powerful binary system offers novel strategy combining with immunotherapy treatment cancer, providing promising BNCT-based combination immunotherapy.

Язык: Английский

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Highly Efficient Wavelength Red‐Shift Regulating Strategy of Carbon Dots Composites via the Effective Conjugated Domain and the Hydrogen Bonding Synergy

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 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.

Язык: Английский

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Carbon-based nanomaterials for carbon neutralization through electrochemical CO2 reduction and C–N coupling

Matter, Год журнала: 2025, Номер 8(5), С. 102077 - 102077

Опубликована: Май 1, 2025

Язык: Английский

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