Carbon quantum dots for the detection of antibiotics and pesticides

Chu, Han‐Wei; Unnikrishnan, Binesh; Anand, Anisha; Lin, Yang‐Wei; Huang, Chih‐Ching

doi:10.38212/2224-6614.1269

Cited by 39 publications

(25 citation statements)

References 82 publications

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“…The carbon quantum dots and graphene quantum dots with their eminent physical-chemical properties including potent chemical inertness, low toxicity, plenty of edge functionalization sites, and high surface areas have been attracting increasing attention in various fields such as sensing (M. Z. Li et al, 2019a,b), detection (Chu et al, 2020), extraction (Mohebbi et al, 2020), and membrane fabrication (Zhao and Chung, 2018), along with wastewater treatment via adsorption (Anand et al, 2020) and photocatalytic (Lee et al, 2020) techniques.…”

Section: Carbon and Graphene Quantum Dotsmentioning

confidence: 99%

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

et al. 2021

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Section: Carbon and Graphene Quantum Dotsmentioning

confidence: 99%

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

et al. 2021

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“…Upon a single excitation at 380 nm, the Pdots-PPF exhibit ratiometric pH sensing ability within a wide range of pH value ranging from 3.0 to 8.0 [10]. Recently, fluorescent carbon based-nanoparticles have received great interest due to their low chemical/cytotoxicity, good biocompatibility, multicolor luminescence tunability, and resistance to photobleaching [11][12][13]. Carbon dots (CDs) prepared by a variety of carbon sources in facile methods have shown significantly improved behaviors and been demonstrated as a suitable candidate for fluorescent pH sensing [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Development of Fluorescent Carbon Nanoparticle-Based Probes for Intracellular pH and Hypochlorite Sensing

et al. 2022

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Acid-base and redox reactions are important mechanisms that affect the optical properties of fluorescent probes. Fluorescent carbon nanoparticles (CNPs) that possess tailored surface functionality enable a prompt response to regional stimuli, offering a useful platform for detection, sensing, and imaging. In this study, mPA CNPs were developed through one-pot hydrothermal reaction as a novel fluorescent probe (quantum yield = 10%) for pH and hypochlorite sensing. m-Phenylenediamine was chosen as the major component of CNPs for pH and hypochlorite responsiveness. Meanwhile, ascorbic acid with many oxygen-containing groups was introduced to generate favorable functionalities for improved water solubility and enhanced sensing response. Thus, the mPA CNPs could serve as a pH probe and a turn-off sensor toward hypochlorite at neutral pH through fluorescence change. The as-prepared mPA CNPs exhibited a linear fluorescence response over the pH ranges from pH 5.5 to 8.5 (R2 = 0.989), and over the concentration range of 0.125–1.25 μM for hypochlorite (R2 = 0.985). The detection limit (LOD) of hypochlorite was calculated to be 0.029 μM at neutral pH. The mPA CNPs were further applied to the cell imaging. The positively charged surface and nanoscale dimension of the mPA CNPs lead to their efficient intracellular delivery. The mPA CNPs were also successfully used for cell imaging and sensitive detection of hypochlorite as well as pH changes in biological systems. Given these desirable performances, the as-synthesized fluorescent mPA CNPs shows great potential as an optical probe for real-time pH and hypochlorite monitoring in living cells.

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“…In the last decade, we have witnessed numerous sensing applications of C-dots, [11][12][13] but only few works focusing on sensing of illicit drugs, 14 mainly because it is inconvenient for most analytical labs to obtain the drugs. The reported C-dot bases PL sensing strategies are mostly through energy transfer, and photon-induced electron transfer processes as illustrated in Fig.…”

Section: Introductionmentioning

confidence: 99%

Photoluminescent carbon nanomaterials for sensing of illicit drugs: focus

Wei

Liang

et al. 2022

ANAL. SCI.

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The growth of illicit drugs is a serious social problem, putting great pressure on law enforcement officers to screen numerous suspicious samples at crime scenes. Although commercial colorimetric kits are available, they are limited to common illicit drugs. With increasing numbers of new psychoactive substances in the market, accurate and rapid screening assays are highly demanded. Carbon dots (C-dots) are photoluminescent (PL) carbon nanomaterials with unique properties of excellent stability against salt and photo-irradiation, low blinking, and biocompatibility. They can be prepared easily through various routes from numerous precursors.This Focus provides examples of C-dots based PL assays for screening illicit drugs. The drugs induce PL changes of C-dots mostly through electron transfer and energy transfer. Liquid-and solid-phase PL assays of C-dots can be applied for in-field screening, with advantages of rapidity, low cost, selectivity, and minimum color interference showing their great commercial potential.

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Carbon quantum dots for the detection of antibiotics and pesticides

Abstract: This Review Article is brought to you for free and open access by Journal of Food and Drug Analysis. It has been accepted for inclusion in Journal of Food and Drug Analysis by an authorized editor of Journal of Food and Drug Analysis.

Cited by 39 publications

References 82 publications

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

Toxicity and remediation of pharmaceuticals and pesticides using metal oxides and carbon nanomaterials

Development of Fluorescent Carbon Nanoparticle-Based Probes for Intracellular pH and Hypochlorite Sensing

Photoluminescent carbon nanomaterials for sensing of illicit drugs: focus

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