Design and fabrication of dual functional sulfur nanodots with reducibility and fluorescence properties for sensitive and selective analysis of metal ions in environmental water samples

Article Biochemical Research Methods

A ratiometric fluorescence and colorimetric dual-mode sensing platform based on sulfur quantum dots and carbon quantum dots for selective detection of Cu2+

Hanqiang Zhang et al.

Summary: A new dual-mode ratiometric fluorescence and colorimetric probe has been developed for selective determination of Cu2+. The probe shows high accuracy and sensitivity, and has immense potential for practical applications.

ANALYTICAL AND BIOANALYTICAL CHEMISTRY (2022)

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Article Chemistry, Multidisciplinary

Negatively Charged Sulfur Quantum Dots for Treatment of Drug-Resistant Pathogenic Bacterial Infections

Yi Wang et al.

Summary: The study engineered negatively charged sulfur quantum dots (SQDs) as an efficient broad-spectrum antibiotic to kill drug-resistant bacteria in vitro and in vivo. SQDs destroy bacterial membrane systems and affect their metabolism through the intrinsic antibacterial activity of elemental sulfur and catalytic generation of reactive oxygen species. Compared to traditional positively charged materials, SQDs demonstrate better hemocompatibility and lower toxicity.

NANO LETTERS (2021)

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Article Chemistry, Physical

Polyvinyl Alcohol Enhanced Fluorescent Sulfur Quantum Dots for Highly Sensitive Detection of Fe3+ and Temperature in Cells

Jiehao Lei et al.

Summary: Sulfur quantum dots (SQDs) have attracted attention for their unique properties and potential applications. A simple method was used to prepare water-dispersible and stable SQDs, which showed sensitive and selective fluorescence quenching towards Fe3+ and could potentially serve as a nanothermometer. This work opens new opportunities for expanding the application fields of SQDs.

PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION (2021)

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Article Chemistry, Analytical

Early-warning and semi-quantitative colorimetric detection of Hg(II) with lysine-bis-Schiff base cellulose membranes designed by simple interfacial covalent bonding

Heng Zhang et al.

Summary: Efficient platforms for the detection of hypertoxic Hg2+ in water are of great significance. In this study, lysine-bis-Schiff base cellulose membranes (SCMs) were prepared as immobilized probe colorimetric platforms, offering an effective solution for early-warning detection of Hg2+. The SCMs exhibited high selectivity, sensitivity, and robust reusability in detecting Hg2+ qualitatively and semi-quantitatively within a short period of time.

SENSORS AND ACTUATORS B-CHEMICAL (2021)

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Article Chemistry, Analytical

One-pot synthesis of hydroxypropyl-β-cyclodextrin capped fluorescent sulfur quantum dots for highly sensitive and selective recognition of tartrazine

Zeming Huang et al.

Summary: A robust fluorescent sulfur quantum dots material, utilizing hydroxypropyl-β-cyclodextrin as ligand, has been developed with molecular recognition and fluorescence detection capability, displaying fine aqueous dispersibility, stable and tunable fluorescence, and favorable biocompatibility for applications in cellular imaging and sensing. The SQDs, benefiting from the synergistic effect of inner filter effect and host-guest interaction, can serve as an effective fluorescent probe for tartrazine detection with excellent sensitivity and selectivity, showing a limit of detection of 82 nM and a wide linear range of 0 to 30 µM. Moreover, the fluorescent SQDs have demonstrated successful detection of tartrazine in river water and food samples with satisfactory performance.

MICROCHEMICAL JOURNAL (2021)

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Article Nanoscience & Nanotechnology

Sulfur Quantum Dots as Fillers in Gelatin/Agar-Based Functional Food Packaging Films

Ruchir Priyadarshi et al.

Summary: Sulfur quantum dots (SQDs) show potential as functional fillers for food packaging biopolymer films, with good dispersibility, high antioxidant and antimicrobial activities, and low toxicity to cells. Adding SQDs to gelatin/agar blend films can enhance the UV-barrier property without compromising the color and transparency of the film.

ACS APPLIED NANO MATERIALS (2021)

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Article Chemistry, Multidisciplinary

Photoinduced Self-Assembly of Carbon Nitride Quantum Dots

Zheng Xing et al.

Summary: The study reports on a unique irradiation-triggered self-assembly and recrystallization phenomenon of crystalline carbon nitride quantum dots. Unlike conventional self-assembly of nanocrystals into ordered superstructures, this photoinduced self-assembly resembles a click reaction process of macromolecules, initiated by activated functional groups along the perimeters.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

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Article Chemistry, Multidisciplinary

Photoluminescence investigations of sulfur quantum dots synthesized by a bubbling-assisted strategy

Shuo Liu et al.

Summary: Sulfur quantum dots (S-dots) are considered promising luminescent materials due to their simple synthesis, excellent luminescence properties, and metal-free nature, making them attractive for optoelectronic and electroluminescence applications. The emission color of S-dots is size-dependent, explained by the quantum confinement effect. The dots' luminescent quantum efficiency is strongly affected by the surface sulfur species.

NANOSCALE ADVANCES (2021)

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Article Nanoscience & Nanotechnology

Mechanochemical Synthesis of Sulfur Quantum Dots for Cellular Imaging

Farwa Arshad et al.

Summary: This study demonstrates a mechanochemical synthesis of luminescent sulfur quantum dots, showing excitation-dependent photoluminescence and low toxicity. The method also shows potential application prospects in biological imaging.

ACS APPLIED NANO MATERIALS (2021)

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Article Engineering, Environmental

A magnetic relaxation switching and visual dual-mode sensor for selective detection of Hg2+ based on aptamers modified Au@Fe3O4 nanoparticles

Yuanyuan Liu et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

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Article Chemistry, Analytical

A blue/red dual-emitting multi-responsive fluorescent probe for Fe3+, Cu2+ and cysteine based on isophorone-antharecene

Serkan Erdemir et al.

MICROCHEMICAL JOURNAL (2020)

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Article Chemistry, Analytical

Highly fluorescent hematoporphyrin modi fi ed graphene oxide for selective detection of copper ions in aqueous solutions

Fathi S. Awad et al.

ANALYTICA CHIMICA ACTA (2020)

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Article Chemistry, Applied

Facile synthesis of carboxymethyl cellulose sulfur quantum dots for live cell imaging and sensitive detection of Cr(VI) and ascorbic acid

Yixing Duan et al.

CARBOHYDRATE POLYMERS (2020)

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Article Chemistry, Analytical

Ultrasensitive Electrochemiluminescence Biosensor Using Sulfur Quantum Dots as an Emitter and an Efficient DNA Walking Machine with Triple-Stranded DNA as a Signal Amplifier

Linlei Liu et al.

ANALYTICAL CHEMISTRY (2020)

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Article Chemistry, Multidisciplinary

49.25% efficient cyan emissive sulfur dots via a microwave-assisted route

Zhe Hu et al.

RSC ADVANCES (2020)

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Article Chemistry, Analytical

An ultrasensitive and selective fluorescent nanosensor based on porphyrinic metal-organic framework nanoparticles for Cu2+ detection

Changming Cheng et al.

ANALYST (2020)

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Article Engineering, Environmental

One-step green approach to synthesize highly fluorescent carbon quantum dots from banana juice for selective detection of copper ions

Navneet Chaudhary et al.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2020)

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Article Chemistry, Multidisciplinary

Oxygen accelerated scalable synthesis of highly fluorescent sulfur quantum dots

Yiheng Song et al.

CHEMICAL SCIENCE (2020)

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Article Chemistry, Multidisciplinary

Hydrogen Peroxide Assisted Synthesis of Highly Luminescent Sulfur Quantum Dots

Henggang Wang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2019)

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Article Chemistry, Multidisciplinary

Cu-Doped Carbon Dots as Catalysts for the Chemiluminescence Detection of Glucose

Yan Duan et al.

ACS OMEGA (2019)

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Article Chemistry, Analytical

A nanocomposite prepared from silver nanoparticles and carbon dots with peroxidase mimicking activity for colorimetric and SERS-based determination of uric acid

Ailin Wang et al.

MICROCHIMICA ACTA (2019)

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Article Chemistry, Analytical

Colorimetric and visual mercury(II) assay based on target-induced cyclic enzymatic amplification, thymine-Hg(II)-thymine interaction, and aggregation of gold nanoparticles

Xiaolei Song et al.

MICROCHIMICA ACTA (2019)

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Article Chemistry, Multidisciplinary

One Pot Green Synthesis of Si Quantum Dots and Catalytic Au Nanoparticle-Si Quantum Dot Nanocomposite

Bhagwati Sharma et al.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2019)

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Article Chemistry, Analytical

Metal coordination-functionalized Au-Ag bimetal SERS nanoprobe for sensitive detection of glutathione

Pan Li et al.

ANALYST (2019)

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Article Nanoscience & Nanotechnology

Rapid Synthesis of Sulfur Nanodots by One-Step Hydrothermal Reaction for Luminescence-Based Applications

Lian Xiao et al.

ACS APPLIED NANO MATERIALS (2019)

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Article Chemistry, Multidisciplinary

Assembling of Sulfur Quantum Dots in Fission of Sublimed Sulfur

Lihua Shen et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2018)

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Article Nanoscience & Nanotechnology

Ultrasmall Metal-Organic Framework Zn-MOF-74 Nanodots: Size-Controlled Synthesis and Application for Highly Selective Colorimetric Sensing of Iron(III) in Aqueous Solution

Jiuhai Wang et al.

ACS APPLIED NANO MATERIALS (2018)

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Article Chemistry, Analytical

A dual-response quinoline-based fluorescent sensor for the detection of Copper (II) and Iron(III) ions in aqueous medium

Bibo Zhang et al.

SENSORS AND ACTUATORS B-CHEMICAL (2017)

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Article Chemistry, Analytical

High peroxidase-like activity of iron and nitrogen co-doped carbon dots and its application in immunosorbent assay

Weiqiang Yang et al.

TALANTA (2017)

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Article Materials Science, Biomaterials

Graphene Quantum Dot/Silver Nanoparticle Hybrids with Oxidase Activities for Antibacterial Application

Shuai Chen et al.

ACS BIOMATERIALS SCIENCE & ENGINEERING (2017)

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Article Materials Science, Biomaterials

Graphene Quantum Dot/Silver Nanoparticle Hybrids with Oxidase Activities for Antibacterial Application

Shuai Chen et al.

ACS BIOMATERIALS SCIENCE & ENGINEERING (2017)

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Article Chemistry, Analytical

A sensitive Hg(II) colorimetric sensor based on synergistic catalytic effect of gold nanoparticles and Hg

Lulu Tan et al.

SENSORS AND ACTUATORS B-CHEMICAL (2016)

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Article Chemistry, Multidisciplinary

Facile synthesis of copper doped carbon dots and their application as a turn-off fluorescent probe in the detection of Fe3+ ions

Quan Xu et al.

RSC ADVANCES (2016)

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Article Chemistry, Multidisciplinary

Black Phosphorus Quantum Dots

Xiao Zhang et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2015)

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Article Chemistry, Physical

Carbon dot reduced bimetallic nanoparticles: size and surface plasmon resonance tunability for enhanced catalytic applications

Jeremy B. Essner et al.

JOURNAL OF MATERIALS CHEMISTRY A (2015)

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Article Chemistry, Physical

Binary transition metal nitrides with enhanced activity and durability for the oxygen reduction reaction

Xinlong Tian et al.

JOURNAL OF MATERIALS CHEMISTRY A (2015)

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Article Chemistry, Analytical

Exploiting the Higher Specificity of Silver Amalgamation: Selective Detection of Mercury(II) by Forming Ag/Hg Amalgam

Li Deng et al.

ANALYTICAL CHEMISTRY (2013)

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Article Chemistry, Multidisciplinary

Highly Photoluminescent Carbon Dots for Multicolor Patterning, Sensors, and Bioimaging

Shoujun Zhu et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2013)

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Article Chemistry, Physical

Reduced state carbon dots as both reductant and stabilizer for the synthesis of gold nanoparticles

Xiliang Wang et al.

CARBON (2013)

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Article Materials Science, Multidisciplinary

Recent advances in graphene quantum dots for sensing

Hanjun Sun et al.

MATERIALS TODAY (2013)

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Article Optics

Versatile surface plasmon resonance of carbon-dot-supported silver nanoparticles in polymer optoelectronic devices

Hyosung Choi et al.

NATURE PHOTONICS (2013)

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Article Chemistry, Multidisciplinary

Water-soluble photoluminescent silicon quantum dots

JH Warner et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2005)

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Design and fabrication of dual functional sulfur nanodots with reducibility and fluorescence properties for sensitive and selective analysis of metal ions in environmental water samples

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