Regulating the Aggregation and Dispersion of Carbon Dots to Achieve Stimulus‐Responsive Multimodal Luminescence for Dynamic Anti‐Counterfeiting DOI Open Access
Yang Li, Xiaoyun Liang, Zhiyu Wang

и другие.

Advanced Optical Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 29, 2024

Abstract Stimulus‐responsive multimodal luminescence (MML) within a single material system is highly desirable for anti‐counterfeiting and information encryption applications. However, achieving adjustable MML unified framework challenging due to the distinct responses of different modes common external stimulus. In work, novel approach devised regulating aggregation or dispersion state carbon dots (CDs) exhibit responsive MML, including fluorescence (FL), room temperature phosphorescence (RTP), chemiluminescence (CL). Specifically, aggregation‐caused quenching CDs (ACQCDs) are synthesized via one‐step hydrothermal method using levofloxacin. These ACQCDs ACQ significant aggregation‐induced color change effects. When interact with paper‐based materials, they form hydrogen bonds, establishing high‐density bond network that induces aggregation. Upon stimulation, undergoes dynamic changes, triggering dispersion. This process effectively deactivates nonradiative defect centers, stabilizes triplet excitons, promotes simultaneous tunable FL, RTP, CL. The integration stimulus input enables creation programmable multi‐input logic gate, offering potential encoded Overall, this research provides valuable insights into conduction CDs, thereby advancing utilization nanomaterials in intelligent technologies. findings pave way development more sophisticated secure measures based on unique luminescent properties CDs.

Язык: Английский

Biomass-derived carbon dots: synthesis, modification and application in batteries DOI Creative Commons
Dongyang Cai,

Xue Zhong,

Laiqiang Xu

и другие.

Chemical Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Biomass-derived carbon dots (BCDs) have attracted considerable attention for their promising attributes, including low toxicity, excellent solubility, biocompatibility, and eco-friendliness. Their rich surface chemistry impressive photoluminescent properties sparked widespread research interest, particularly in areas such as sensing biomedicine. However, the potential applications of BCDs energy sector, especially electrochemical storage batteries, received scant review focus. This article systematically consolidates selection sources, synthesis methods, modification strategies, corresponding characterization techniques BCDs. Application strategies batteries are explored, with underlying connection between role structural being analyzed, providing comprehensive insights from to application. Furthermore, a preliminary discussion is initiated on current limitations material regulation design within research, avenues enhancement proposed.

Язык: Английский

Процитировано

6

A review of carbon dots in synthesis, property and application DOI
Qian Wang,

Xinyi He,

Yuanda Lv

и другие.

Materials Today Communications, Год журнала: 2025, Номер unknown, С. 111824 - 111824

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

4

Antimicrobial properties of carbon “quantum” dots for food safety applications DOI Creative Commons
J.V. Collins, Liju Yang, Xiuli Dong

и другие.

Journal of Nanoparticle Research, Год журнала: 2025, Номер 27(2)

Опубликована: Янв. 31, 2025

Abstract Carbon dots represent a rapidly advancing and expanding research field, with large number of literature reports on their potential technological applications including those relevant to food safety. In this article, the dot samples prepared by deliberate chemical functionalization preexisting small carbon nanoparticles or thermal carbonization various organic precursors under different processing conditions are highlighted critiqued for similarities differences in sample structure-morphology properties, especially antimicrobial properties safety–related uses. Also discussed representative recent examples use inactivate foodborne pathogens, disrupt biofilms prevent formation, extend shelf life products, which involve antibacterial mechanisms. Some perspectives further development dots–based/derived platform related excellent application opportunities safety provided.

Язык: Английский

Процитировано

2

Chitin-rich shrimp shells-based nitrogen-doped green fluorescence carbon dots: New insights for multi-orbital applications DOI

Mingying Chen,

Danni Wu,

Xiaolan Deng

и другие.

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 141029 - 141029

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

1

Microwave-Assisted Carbonization Processing for Carbon Dot-like Nanomaterials with Antimicrobial Properties DOI Creative Commons
Buta Singh, Audrey F. Adcock,

Simran Dumra

и другие.

Micro, Год журнала: 2025, Номер 5(1), С. 14 - 14

Опубликована: Март 17, 2025

Carbon dots (CDots) are classically defined as small carbon nanoparticles with effective surface passivation, which, in the classical synthesis, has been accomplished by organic functionalization. CDot-like nanostructures could also be produced thermal carbonization processing of selected precursors, which non-molecular nanocarbons resulting from embedded remaining species, may provide passivation function for nanocarbons. In this work, a mixture oligomeric polyethylenimine and citric acid solid state was used efficient microwave irradiation under various conditions to produce dot samples different nanocarbon content. The were characterized terms their structural morphological features regarding similarity or equivalency those CDots, along significant divergences. Also evaluated optical spectroscopic properties photoinduced antimicrobial activity against bacterial species. advantages disadvantages method mimicking synthesized CDots discussed.

Язык: Английский

Процитировано

1

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity DOI Creative Commons
Moritz Maxeiner,

Ruben Maile,

Murat Cuvalli

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 2, 2025

Abstract This study presents nanosized metal‐organic framwork (nanoMOF)‐based multifunctional mixed‐matrix‐membranes (MMMs) and composite powders as extremely sensitive responder materials for a responder‐stimulus based multilevel anti‐counterfeiting. The physicochemical properties of nanoMOF‐based composites offer wide operational range anti‐counterfeiting tags. Nine are presented, constituted trivalent lanthanide‐containing nanoMOFs ([Ln 3 (bdc) 4.5 (H 2 O) (dmf) ] (nLn‐bdc); bdc 2− ═benzene‐1,4‐dicarboxylate; Ln═Eu, Tb, Yb) polystyrene sulfonate, pyrolyzed resorcinol‐formaldehyde polysulfone matrices. These inherit distinct properties, their combination provides visible near‐infrared light emission specific conductivity multiple security level additive interdependent nature features in the developed ensures that altering one feature will invariably affect others, thereby reinforcing overall integrity resilience mechanism. Even pitch‐black nLn‐bdc show bright to range, when stimulated by UV‐light being suitable black materials. work also describes matrix‐based active contribution an tag, instead solely used carrier feature‐bearing nanoMOFs. levels different marks these complicated copy including proof‐of‐principle experiment.

Язык: Английский

Процитировано

1

Carbon Dots: A Versatile Platform for Cu2+ Detection, Anti-Counterfeiting, and Bioimaging DOI Creative Commons
Qian Wang,

Xinyi He,

Jian Mao

и другие.

Molecules, Год журнала: 2024, Номер 29(17), С. 4211 - 4211

Опубликована: Сен. 5, 2024

Carbon dots (CDs) have garnered extensive interest in basic physical chemistry as well biomedical applications due to their low cost, good biocompatibility, and great aqueous solubility. However, the synthesis of multi-functional carbon has always been a challenge for researchers. Here, we synthesized novel CDs with high quantum yield 28.2% through straightforward hydrothermal method using Diaminomaleonitrile Boc-D-2, 3-diaminopropionic acid. The size, chemical functional group, photophysical properties were characterized by TEM, FTIR, XPS, UV, fluorescence. It was demonstrated this study that prepared yield, excellent photostability, cytotoxicity. Regarding highly water-soluble property CDs, they proven possess selective sensitive behavior against Cu2+ ions (linear range = 0–9 μM limit detection 1.34 μM). Moreover, utilized fluorescent ink anti-counterfeiting measures. Because cytotoxicity also successfully cell imaging. Therefore, as-prepared potential fluorescence sensing, anti-counterfeiting, bioimaging.

Язык: Английский

Процитировано

6

Carbon dots-engineered gold nanoclusters in silica enabled aqueous-phase fluorescence-phosphorescence dual-emission towards advanced luminescent anti-counterfeiting DOI

Xiaojian Yan,

Lin Wang,

Wencheng Zhong

и другие.

Nano Research, Год журнала: 2024, Номер 18(2), С. 94907172 - 94907172

Опубликована: Дек. 16, 2024

Язык: Английский

Процитировано

6

Precise Regulation Strategy for Fluorescence Wavelength of Aggregation‐Induced Emission Carbon Dots DOI Creative Commons

Liu Ding,

Xilang Jin, Yuchong Gao

и другие.

Advanced Science, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 3, 2024

Abstract Aggregation‐induced emission (AIE) carbon dot (CDs) in solid state with tunable multicolor emissions have sparked significant interest multidimensional anti‐counterfeiting. However, the realization of solid‐state fluorescence (SSF) by AIE effect and regulation wavelength is a great challenge. In order to solve this dilemma, method prepare multi‐color CDs wavelengths ranging from bright blue red employed. Specifically, using thiosalicylic acid carbonyl hydrazine as precursors, can be accurately adjusted varying reaction temperature 150 230 °C or changing molar ratio precursors 1:1 1:2. Structural analysis theoretical calculations consistently indicate that increasing sp 2 domains doping graphite nitrogen both cause redshift state. Moreover, multi‐dimensional adjustable wavelength, application fields multi‐anti‐counterfeiting encryption, ink printing, screen printing demonstrated. All all, work opens up new way for preparing effect, further proposes an innovative strategy controlling wavelengths.

Язык: Английский

Процитировано

4

Carbon dot nanoarchitectonics with high photoluminescence for efficient Cr ion sensors DOI
Yi Tian, Xiao Zhang, Jianrong Wang

и другие.

Surfaces and Interfaces, Год журнала: 2024, Номер 52, С. 104926 - 104926

Опубликована: Авг. 8, 2024

Язык: Английский

Процитировано

3