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

---

Carbon Dot Biopolymer-Based Flexible Functional Films for Antioxidant and Food Monitoring Applications

ACS Applied Polymer Materials, Journal Year: 2022, Volume and Issue: 4(12), P. 9323 - 9340

Published: Nov. 29, 2022

Heteroatom-doped carbon dot (CD)-reinforced flexible, antioxidant, and UV-resistant polymeric thin films have been fabricated by a facile physical compounding strategy associated with the 'cast peel' technique. The prepared CDs were found to be stable in aqueous media because of their zeta potential value (−5.85 mV). There was no significant change values during 7 days storage, indicating long-term stability CPCDs. CD-reinforced thermoplastic starch (TPS)/κ-carrageenan hybrid developed as antioxidants improve shelf-life agro-products. Besides this, they also qualified for mechanical strength (>40 MPa), transparency (∼77%), nondeteriorative dimensional integrity at high relative humidity (∼97%), properties. For assessing food preservation behavior, leaching has studied time-dependent sustained release different simulant media, where it showed gradual alteration entrapment efficacy high-polarity gradient environments. mechanism CD obtained from non-Fickian fittings initial preplateaued kinetic data. Surprisingly, when these nanodots arrested inside polymer matrix, film excellent water vapor impermeability, low moisture retention, sufficient toughness, superficial compliance external flexing stretching. Also, CD-based TPS/κ-carrageenan exhibited strong antioxidant activity, determined 1,1-diphenyl-2-picrylhydrazyl (>85%) 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid assays (>90%). Thus, could promoted ideal alternatives packaging thin, tough, moisture-impermeable

Language: Английский

---

Carbon Dot‐Based Hydrogels: Preparations, Properties, and Applications

Small, Journal Year: 2023, Volume and Issue: 19(17)

Published: Jan. 29, 2023

Hydrogels have extremely high moisture content, which makes it very soft and excellently biocompatible. They become an important material a wide range of applications in various fields such as biomedicine, bionic smart material, electrochemistry. Carbon dot (CD)-based hydrogels are based on carbon dots (CDs) auxiliary substances, forming gel with comprehensive properties individual components. CDs embedding could not only solve their aggregation-caused quenching (ACQ) effect, but also manipulate the even bring some novel properties, achieving win-win situation. In this review, preparation methods, formation mechanism, CD-based hydrogels, sensing, adsorption, energy storage, catalysis -are summarized. Finally, brief discussion future research directions will be given.

Language: Английский

---

Red emissive carbon dots as a fluorescent sensor for fast specific monitoring and imaging of polarity in living cells

Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(6), P. 2679 - 2689

Published: Jan. 1, 2023

This work presents red emissive CDs as a promising fluorescent sensor with excellent photostability, high fluorescence quantum yield, and negligible cytotoxicity for real-time sensing visualizing polarity changes in mitochondria lysosomes.

Language: Английский

---

Synthesis and applications of carbon quantum dots derived from biomass waste: a review

Environmental Chemistry Letters, Journal Year: 2023, Volume and Issue: 21(6), P. 3393 - 3424

Published: Aug. 12, 2023

Language: Английский

---

Multicolor Afterglow Carbon Dots: Luminescence Regulation, Preparation, and Application

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(25)

Published: Feb. 6, 2024

Abstract Afterglow materials have attracted much attention owing to their long luminescence lifetimes, large Stokes shifts, and emission without real‐time excitation. Compared with traditional organic afterglow materials, carbon dots (CDs), as a new material, superior properties such easy preparation, low toxicity, cost. The color of CDs can be regulated by external factors excitation wavelength, temperature, time, which is highly significant for expanding the diversified applications make them available biotechnology information applications. This review summarizes research progress multicolor in recent years, including regulation strategies, preparation methods, First, are classified into three strategies: room temperature phosphorescence (RTP), thermally activated delayed fluorescence converted RTP, based on Förster resonance energy transfer, strategies regulating analyzed. Second, methods achieving summarized both matrix‐free matrix‐confined aspects. Then, anticounterfeiting encryption, sensing bioimaging introduced detail. Finally, future challenges opportunities prospected provide ideas controlled design wide application.

Language: Английский

---

Carbon quantum dots for fluorescent detection of nitrite: A review

Food Chemistry, Journal Year: 2023, Volume and Issue: 415, P. 135749 - 135749

Published: Feb. 20, 2023

Language: Английский

---

Red/NIR C-dots: A perspective from carbon precursors, photoluminescence tuning and bioapplications

Carbon, Journal Year: 2024, Volume and Issue: 219, P. 118838 - 118838

Published: Jan. 17, 2024

Language: Английский

---

Computational insights into carbon dots: Evolution of structural models and structure–activity relationships

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 481, P. 148779 - 148779

Published: Jan. 13, 2024

Language: Английский

---

Comprehensive Overview of Controlled Fabrication of Multifunctional Fluorescent Carbon Quantum Dots and Exploring Applications

Small, Journal Year: 2024, Volume and Issue: 20(29)

Published: Feb. 11, 2024

Abstract In recent years, carbon dots (CDs) have garnered increasing attention due to their simple preparation methods, versatile performances, and wide‐ranging applications. CDs can manifest various optical, physical, chemical properties including quantum yield (QY), emission wavelength (Em), solid‐state fluorescence (SSF), room‐temperature phosphorescence (RTP), material‐specific responsivity, pH sensitivity, anti‐oxidation oxidation, biocompatibility. These be effectively regulated through precise control of the CD process, rendering them suitable for diverse However, lack consideration given each feature during process poses a challenge in obtaining requisite features This paper is analyze existing research present novel concepts ideas creating with different distinct The synthesis methods are discussed first section, followed by comprehensive overview important modification strategy. Subsequently, application reviewed. Finally, outlines current challenges controlling applications, discusses potential solutions, offers suggestions future research.

Language: Английский

---