Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: unknown, P. 136678 - 136678
Published: Sept. 1, 2024
Language: Английский
Chem, Journal Year: 2023, Volume and Issue: 10(1), P. 134 - 171
Published: Oct. 19, 2023
Language: Английский
Citations
75
Advanced Science, Journal Year: 2024, Volume and Issue: unknown
Published: July 18, 2024
Abstract Carbon dots (CDs) are an emerging class of nanomaterials with attractive optical properties, which promise to enable a variety applications. An important and timely question is whether CDs can become functional sustainable alternative incumbent nanomaterials, notably inorganic quantum dots. Herein, the current CD literature comprehensively reviewed as regards their synthesis function, focus on sustainability aspects. The study quantifies why it that be synthesized biomass sole starting material free from toxic precious metals critical raw materials. It further describes analyzes employed pretreatment, chemical‐conversion, purification, processing procedures, highlights issues usage solvents, energy efficiency, safety waste management. specially shown many reported methods concerningly wasteful utilization non‐sustainable solvents energy. finally recommended future studies should explicitly consider discuss environmental influence selected material, generated byproducts, quantitative information required amounts consumables, provided evaluation presented in upscaled context.
Language: Английский
Citations
26
Carbon, Journal Year: 2024, Volume and Issue: 226, P. 119169 - 119169
Published: April 21, 2024
Language: Английский
Citations
23
ACS Nano, Journal Year: 2024, Volume and Issue: 18(18), P. 11560 - 11572
Published: April 29, 2024
Second near-infrared (NIR-II) carbon dots, with absorption or emission between 1000 and 1700 nm, are gaining increasing attention in the biomaterial field due to their distinctive properties, which include straightforward preparation processes, stable photophysical characteristics, excellent biocompatibility, low cost. As a result, there is growing focus on controlled synthesis modulation of photochemical properties NIR-II aim further expand biomedical applications, current research hotspot. This account aims provide comprehensive overview recent advancements dots within field. The review will cover following topics: (i) design, synthesis, purification (ii) surface modification strategies, (iii) particularly domain cancer theranostics. Additionally, this addresses challenges encountered by outline future directions realm By exploring carbon-based biomaterials, we can anticipate that contribution garner increased contribute development next-generation advanced functional thereby offering enhanced tools strategies
Language: Английский
Citations
23
The Analyst, Journal Year: 2024, Volume and Issue: 149(6), P. 1680 - 1700
Published: Jan. 1, 2024
Literature reports demonstrate versatile optical applications of fluorescent carbon dots (CDs) in biological imaging, full-color solid-state lighting, optoelectronics, sensing, anticounterfeiting and so on. The fluorescence associated with CDs may originate significantly from byproducts generated during their synthesis, which need to be eliminated achieve error-free results. significance purification, specifically for luminescence-based characterizations, is highly critical imperative. Thus, there a pressing demand implement consistent adequate purification strategies reduce sample complexity thereby realize reliable results that can provide tactical steppingstone towards the advancement as next-generation materials. article focuses on mechanism origin further demonstrates different approaches including dialysis, centrifugation, filtration, solvent extraction, chromatography, electrophoresis have been adopted by various researchers. Furthermore, fundamental separation mechanism, well advantages limitations each these techniques are discussed. finally provides challenges overcome obtain homogeneous CD fractions coherent features suitable applications.
Language: Английский
Citations
22
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(48)
Published: Aug. 20, 2024
Abstract Carbon dots (CDs) have rapidly emerged as a new family of carbon‐based nanomaterials since their initial discovery two decades ago. Numerous appealing properties, such precursor and synthesis process flexibility, tunable photoluminescence, good biocompatibility, enabled widespread applications in sensing, catalysis, energy, biomedical fields. As the field expands, notable efforts recently focused on mechanistically elucidating structural formation optical behavior CDs. However, absence “clean” CDs presents major obstacle to achieving solid understanding these aspects. Often, claimed are, fact, mixture small molecules, oligomers, nano‐sized aggregates, or even microparticles. Such coexistence impurities markedly impacts physicochemical properties resulting CD‐based mixtures, hampering resolution key mechanistic questions. Here, we aim address this fundamental shortcoming field, going beyond customary focus existing reviews that predominantly cover synthesis, performance, application prospects. We begin with an overview CD then thoroughly examine purification methods, including filtration, dialysis, electrophoresis, chromatography. The insights provided here will guide researchers towards obtaining high‐quality CDs, employing proper combinations available tools, ultimately paving way for more demanding applications.
Language: Английский
Citations
19
ACS Nano, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 22, 2025
The chemical structure and photoredox properties of carbon dots (CDs) are not yet fully understood. However, it has been reported that, by carefully choosing the starting materials tuning their synthesis conditions, is possible to obtain CDs with different structures therefore photocatalytic performance. For this work, a family was synthesized in Milli-Q water via microwave-assisted protocol, using citric acid urea as precursors. syntheses were carried out at times temperatures assess impact synthetic parameters on final materials. After extensive accurate purification, abilities selected subset tested performing photocatalyzed atom transfer radical addition reaction. Among CDs, best ones found be those highest temperature, which most graphitic. A number characterization techniques then used evaluate degree graphitization elucidate origin
Language: Английский
Citations
4
Analytica Chimica Acta, Journal Year: 2023, Volume and Issue: 1268, P. 341430 - 341430
Published: May 25, 2023
Language: Английский
Citations
29
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
Citations
18
Chemical Science, Journal Year: 2024, Volume and Issue: 15(10), P. 3428 - 3445
Published: Jan. 1, 2024
Characterizing functionalized 2D materials is not easy. We present a critical overview of the challenges, spectroscopic, microscopic and analytical techniques available practical examples in literature to illustrate their correct use.
Language: Английский
Citations
14