Zero-Dimensional Carbon Nanomaterials for Fluorescent Sensing and Imaging

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(18), P. 11047 - 11136

Published: Sept. 7, 2023

Advances in nanotechnology and nanomaterials have attracted considerable interest play key roles scientific innovations diverse fields. In particular, increased attention has been focused on carbon-based exhibiting extended structures unique properties. Among these materials, zero-dimensional structures, including fullerenes, carbon nano-onions, nanodiamonds, dots, possess excellent bioaffinities superior fluorescence properties that make suitable for application to environmental biological sensing, imaging, therapeutics. This review provides a systematic overview of the classification structural properties, design principles preparation methods, optical sensing applications nanomaterials. Recent interesting breakthroughs sensitive selective imaging heavy metal pollutants, hazardous substances, bioactive molecules as well information encryption, super-resolution photoacoustic phototherapy nanomedicine delivery are main focus this review. Finally, future challenges prospects materials highlighted envisaged. presents comprehensive basis directions designing, developing, applying fascinating fluorescent sensors fabricated based specific requirements numerous research

Language: Английский

---

The Emerging Star of Carbon Luminescent Materials: Exploring the Mysteries of the Nanolight of Carbon Dots for Optoelectronic Applications

Small, Journal Year: 2024, Volume and Issue: 20(31)

Published: March 10, 2024

Carbon dots (CDs), a class of carbon-based nanomaterials with dimensions less than 10 nm, have attracted significant interest since their discovery. They possess numerous excellent properties, such as tunability photoluminescence, environmental friendliness, low cost, and multifunctional applications. Recently, large number reviews emerged that provide overviews synthesis, applications, composite functionalization. The application CDs in the field optoelectronics has also seen unprecedented development due to optical but them this are relatively rare. With idea deepening broadening understanding applications optoelectronics, review for first time provides detailed summary luminescent solar concentrators (LSCs), light-emitting diodes (LEDs), cells, photodetectors. In addition, definition, categories, synthesis methods briefly introduced. It is hoped can bring scholars more deeper optoelectronic further promote practical CDs.

Language: Английский

---

Two Novel Viologen/Polyoxometalate‐Based Compounds for the Efficient Photocatalytic Reduction of Cr (VI) Under Visible Light Irradiation

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(2)

Published: Jan. 15, 2025

ABSTRACT Designing efficient photocatalyst has attracted extensive attention for treating polluted wastewater containing Cr (VI). In this work, two viologen/polyoxometalate (POM)‐based compounds were synthesized, [Ni (mimb) 2 (H O) 4 (β‐Mo 8 O 26 )]·4H ( 1 ) and [Zn (mimb = 1‐((3,5‐dimethylisoxazol‐4‐yl)methyl)‐[4,4′‐bipyridin]‐1‐ium), through a hydrothermal method investigated their ability of photocatalytic reduction The structures 1–2 characterized by single‐crystal X‐ray diffraction, revealing that both possess zero‐dimensional (0D) structure can form one‐dimensional (1D) chain hydrogen bondings. Photocatalytic experiments demonstrate compound superior performance compared to . Under optimal conditions (pH 2, 15 mg catalysts, 10 L −1 (VI) concentration), completely reduce within 20 min, while requires 30 min. Compounds also show good stability after reaction, maintain high activity five reaction cycles. Additionally, the mechanism was studied, free radical scavenging its main active species are e − , h + ˙O nitroblue tetrazolium (NBT) further confirm crucial role in process. activity, stability, recyclability viologen/POM‐based suggest potential application treatment

Language: Английский

---

Ultra-small nano CeO2/CuO doped carboxylated chitosan fibers for high-performance oxidase-mimic visual monitoring of S2− and Fe2+ in agricultural products

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151432 - 151432

Published: April 18, 2024

Language: Английский

---

Excitation-Dependent Photostability and High Fluorescence Quantum Yield of Cr-Doped Carbon Polymer Dots for Sensors, Anticounterfeiting Inks, and Light-Emitting Devices

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(2), P. 1674 - 1683

Published: Jan. 10, 2024

Carbon polymer dots (CPDs) show incredible potential due to their outstanding optical characteristics, simple synthesis using low-cost precursors, and diverse applications. This study aimed develop chromium-doped CPDs (Cr-CPDs) an efficient one-step microwave method for fluorescence sensing optoelectronic devices. The one-pot used citric acid, urea, C6H9O6Cr, N,N-dimethylformamide. resulting Cr-CPDs demonstrated excitation-dependent photostability with a high quantum yield of 15.56%, making them promising fluorescence-based Our experiments showed that the Cr-CPDs' could be effectively quenched in presence Fe3+ ions, allowing detection down 0.52 μM concentration. By combination PVA, flexible composite films were created visual ion sensing. Static quenching IFE dynamics work synergistically underpin selective sensitive fluorescent function Fe3+. These further served as colorful inks multifunctional information encoding. Most significantly, incorporating into PVA assembling on light-emitting devices (LEDs) led blue- green LEDs. opens new possibilities cost-effective luminescent materials next-gen electronics.

Language: Английский

---

Synthesis of Er(III)-based porphyrin metal-organic frameworks for rapid detection of sulfide ions with triple-signal output

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 404, P. 135301 - 135301

Published: Jan. 9, 2024

Language: Английский

---

Biological Waste-Derived Carbon Dots and Their Applications

Nanostructure science and technology, Journal Year: 2025, Volume and Issue: unknown, P. 107 - 128

Published: Jan. 1, 2025

Language: Английский

---

Size‐Tunable Covalent Organic Framework Nanoparticles for Assembling One‐Dimensional Photonic Crystals With Visual Sensing

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 5, 2025

Abstract One‐dimensional photonic crystals (1D PCs) emerged as superb sensing platforms due to their high sensitivity environmental changes. However, effectively translating the microscopic interactions between covalent organic frameworks (COFs) and analytes into macroscopic optical responses via 1D PCs for intuitive detection presents a significant challenge. Here, we propose stepwise‐induced synthesis strategy that first time achieves size‐controlled of uniform nanoscale COFs (60–80 nm), leading high‐quality COF layer. This advancement enables COF‐based exhibit diverse color variations controllable saturation. Notably, excellent compatibility layer with inorganic oxides, polymers, metal‐organic (MOFs) results in these exhibiting bright colors. Crucially, introducing mesoporous materials achieve deep integration adsorption recognition functions volatile compounds (VOCs). The fabricated COF/MOF PC allows differentiation 12 VOCs visually detects at different concentrations (0–80 g m − 3 ) through changes, response under 1 s. In particular, can be transferred flexible substrates while retaining VOC visual sensing. These attributes highlight potential real‐time monitoring industrial environments.

Language: Английский

---

Spectroscopic analysis for environmental sensing of smart polymers

AIP conference proceedings, Journal Year: 2025, Volume and Issue: 3157, P. 120060 - 120060

Published: Jan. 1, 2025

Language: Английский

---

High Refractive Index Carbonized Polymer Dots Acting as Light Scattering Units in Nanocomposites for Full‐Screen Light Guide Plate

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(16)

Published: Jan. 2, 2024

Abstract The full‐screen mobile phone can be fabricated by integrating the camera beneath screen, which needs nanocomposite light guide plate (nano‐LGP) with exceptional transparency and light‐guiding properties simultaneously. Choosing an appropriate nanoparticle a high refractive index compatibility within polymer matrix is crucial for producing nano‐LGP. In this study, carbonized dots (HRI‐CPDs) are synthesized through solvothermal treatment, achieving value of 1.7220 at 450 nm. Subsequently, modified HRI‐CPDs (mHRI‐CPDs)/polymethyl methacrylate (PMMA) nanocomposites copolymerizing mHRI‐CPDs methyl . Due to visible transmittance Rayleigh scattering characteristics when passes nanocomposites, kind suitable serving as nano‐LGPs. potential light‐scattering unit originally explored improve surface illuminance uniformity best‐performing 4.3‐inch LGP 1.0 wt.% doping content shows 15.8 times higher 2.1 than pure PMMA. This new type based on mHRI‐CPDs/PMMA holds tremendous promise in conjunction advanced liquid crystal display technology.

Language: Английский

---