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Start Over Topic catalysis Journal chemical communications
13 results

1. Bio-inspired antibacterial cellulose paper–poly(amidoxime) composite hydrogel for highly efficient uranium(<scp>vi</scp>) capture from seawater

Author

Jinxiang Gao, Chunxin Ma, Xiaolin Wang, Ning Wang, Qiuhan Yu, Yihui Yuan, Bingjie Yan, Jun Wen, Shaohua Jiang, and Yongxin Qian

Subjects
Paper, Staphylococcus aureus, Water Pollutants, Radioactive, Composite number, chemistry.chemical_element, Catalysis, Water Purification, law.invention, chemistry.chemical_compound, Adsorption, Magazine, law, Oximes, Escherichia coli, Materials Chemistry, Ionic conductivity, Seawater, Cellulose, Vibrio alginolyticus, Water pollutants, Metals and Alloys, Hydrogels, General Chemistry, Uranium, Anti-Bacterial Agents, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Chemical engineering, chemistry, Ceramics and Composites
Abstract

A bio-inspired cellulose paper–poly(amidoxime) composite hydrogel is explored via UV-polymerization. This hydrogel has a highly efficient uranium capture capacity of up to 6.21 mg g−1 for WU/Wdry gel and 12.9 mg g−1 for WU/Wpoly(amidoxime) in seawater for 6 weeks, due to its enhanced hydrophilicity, good hydraulic/ionic conductivity and broad-spectrum antibacterial performance.

Published
2020

2. A highly efficient red-emitting luminescent paper-based chemosensor for hydrogen sulfide

Author

Maximilian A. Springer, Michael R. Grace, Genevieve H. Dennison, Kellie L. Tuck, and Parvathy Mini

Subjects
Paper, Materials science, Sulfide, Hydrogen sulfide, Inorganic chemistry, chemistry.chemical_element, Catalysis, chemistry.chemical_compound, Europium, Coordination Complexes, Limit of Detection, Materials Chemistry, Hydrogen Sulfide, Bimetallic strip, chemistry.chemical_classification, Detection limit, Luminescent Agents, Aqueous solution, Metals and Alloys, General Chemistry, Copper, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry, Luminescent Measurements, Ceramics and Composites, Luminescence
Abstract

The first discrete bimetallic europium(iii)/copper(ii) complex for the fast, sensitive and selective luminescent detection of both aqueous and gaseous hydrogen sulfide has been developed. The chemosensor displayed an impressive response time of 30 seconds and a low theoretical limit of detection (100 ppb) for gaseous hydrogen sulfide.

Published
2020

3. A colorimetric and fluorescent lighting-up sensor based on ICT coupled with PET for rapid, specific and sensitive detection of nitrite in food

Author

Guangle Niu, Lirong Jiang, Peter Verwilst, Juanjuan Wu, Hongyan Zeng, Jong Seung Kim, Jusung An, and Lintao Zeng

Subjects
Paper, Light, Swine, Food Contamination, Brassica, Derivative, 010402 general chemistry, 01 natural sciences, Catalysis, Raphanus, chemistry.chemical_compound, Limit of Detection, Materials Chemistry, Animals, Nitrite, Nitrites, Rapid response, Fluorescent Dyes, Anthracenes, Detection limit, Anthracene, Chromatography, 010405 organic chemistry, Metals and Alloys, General Chemistry, Triazoles, Fluorescence, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Meat Products, Naphthalimides, chemistry, Ceramics and Composites, Colorimetry
Abstract

An anthracene carboxyimide derivative was synthesized as a colorimetric and fluorogenic sensor to determine NO2- with a rapid response (

Published
2019

4. In situ synthesis of photoluminescence-quenching nanopaper for rapid and robust detection of pathogens and proteins

Author

Songbai Tian, Zhike He, Xinghu Ji, Wang Wang, Yucheng Liu, Guobin Mao, and Meng Liu

Subjects
Paper, In situ, Materials science, Aptamer, Nanotechnology, 010402 general chemistry, 01 natural sciences, Catalysis, Robustness (computer science), Quantum Dots, Escherichia coli, Materials Chemistry, Photoluminescence quenching, Quenching (fluorescence), 010405 organic chemistry, Mucin-1, Metals and Alloys, Cytochromes c, Proteins, DNA, General Chemistry, Aptamers, Nucleotide, Fluorescence, Nanostructures, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Spectrometry, Fluorescence, Ceramics and Composites
Abstract

A green and facile method is presented for in situ synthesis of a novel photoluminescence-quenching nanopaper with a highly-efficient quenching ability, rapid reaction time and long-term storage. The as-prepared nanopaper is further used to construct an aptasensor platform with high performance, rapidness and robustness.

Published
2019

5. Covalent interlocking of glucose oxidase and peroxidase in the voids of paper: enzyme–polymer 'spider webs'

Author

Owen Hart, Challa V. Kumar, Dipali Mistri, Yao Lin, Murali Anuganti, Rajeswari M. Kasi, and Caterina Riccardi

Subjects
Paper, Polymers, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Protein Structure, Secondary, Catalysis, Glucose Oxidase, chemistry.chemical_compound, Polymer chemistry, Materials Chemistry, Glucose oxidase, Cellulose, Acrylic acid, Carbodiimide, biology, Chemistry, Metals and Alloys, General Chemistry, 021001 nanoscience & nanotechnology, Enzyme assay, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Kinetics, Cellulose fiber, Peroxidases, Covalent bond, Ceramics and Composites, biology.protein, 0210 nano-technology, Peroxidase
Abstract

A modular, general method for trapping enzymes within the voids of paper, without chemical activation of cellulose, is reported. Glucose oxidase and peroxidase were crosslinked with poly(acrylic acid) via carbodiimide chemistry, producing 3-dimensional networks interlocked in cellulose fibers. Interlocking prevented enzyme activity loss and enhanced the washability and stability.

Published
2016

6. Linkage inversion assembled nano-aptasensors (LIANAs) for turn-on fluorescence detection

Author

Maria C. DeRosa, Nadine R. Frost, and Ranganathan Velu

Subjects
Crops, Agricultural, Paper, Specific detection, Aptamer, Molecular Sequence Data, Nanotechnology, Biosensing Techniques, Fluorescence, Catalysis, Nano, Materials Chemistry, Base sequence, Base Sequence, Chemistry, Metals and Alloys, General Chemistry, Aptamers, Nucleotide, Mycotoxins, Ochratoxins, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Solutions, Liana, Ceramics and Composites, Biosensor
Abstract

A strategy for aptamer-based biosensing termed linkage inversion assembled nano-aptasensors (LIANAs) is shown to be a generally applicable approach to the sensitive and specific detection of a target molecule in turn-on fluorescence solution-based and paper-based tests.

Published
2015

7. Paper-based plasticizer-free sodium ion-selective sensor with camera phone as a detector

Author

Mark E. Meyerhoff, Xuewei Wang, and Yu Qin

Subjects
Paper, Materials science, Hydrocarbons, Fluorinated, Sodium, Inorganic chemistry, Ionophore, chemistry.chemical_element, Article, Catalysis, chemistry.chemical_compound, Adsorption, Phase (matter), Borates, Materials Chemistry, Cellulose, Ionophores, Metals and Alloys, Plasticizer, Substrate (chemistry), General Chemistry, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry, Ceramics and Composites, Optode, Cell Phone
Abstract

An ionophore-based ion-selective optode platform on paper is described for the first time with a sodium optode as the example. Cellulose paper is shown to be an excellent substrate for adsorption of the required chromoionophore, ionophore, and ion exchanger species. These adsorbed components form a hydrophobic phase that enables heterogeneous optical ion sensing in the absence of any plasticizer or organic polymer phase.

Published
2015

8. Real-time visual determination of the flux of hydrogen sulphide using a hollow-channel paper electrode

Author

Liang Linlin, Yan Zhang, Min Su, Jinghua Yu, Li Li, Shenguang Ge, and Fang Liu

Subjects
Paper, Materials science, Surface Properties, Microfluidics, Flux, Nanotechnology, Biosensing Techniques, Hydrogen sulphide, Catalysis, Materials Chemistry, Humans, Electrochemiluminescence, Hydrogen Sulfide, Multiple cancer, Metals and Alloys, Electrochemical Techniques, Equipment Design, General Chemistry, Microfluidic Analytical Techniques, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Microelectrode, Electrode, MCF-7 Cells, Microscopy, Electron, Scanning, Ceramics and Composites, Gold, Microelectrodes, Communication channel
Abstract

A novel 3D microfluidic paper-based turn-on electrochemiluminescence origami cyto-device with hollow channels is developed and applied for real-time visual determination of H2S released from multiple cancer cells for the first time.

Published
2015

9. A 3D origami multiple electrochemiluminescence immunodevice based on a porous silver-paper electrode and multi-labeled nanoporous gold–carbon spheres

Author

Weiping Li, Lei Ge, Shenguang Ge, Xianrang Song, Jinghua Yu, Mei Yan, and Long Li

Subjects
Paper, Silver, Materials science, Working electrode, chemistry.chemical_element, Nanotechnology, Catalysis, Silver nanoparticle, Nanopores, Neoplasms, Biomarkers, Tumor, Organometallic Compounds, Materials Chemistry, Humans, Electrochemiluminescence, Porosity, Electrodes, Immunoassay, Nanoporous, Metals and Alloys, Hydrogen Peroxide, General Chemistry, Microfluidic Analytical Techniques, Carbon, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry, Luminescent Measurements, Electrode, Ceramics and Composites, Luminol, SPHERES, Gold
Abstract

A simple and sensitive 3D origami multiple electrochemiluminescence immunodevice based on a novel silver nanoparticles modified porous paper working electrode as a sensor platform and multi-labeled nanoporous gold-carbon spheres as tracers has been demonstrated for the first time.

Published
2013

10. ZnO nanostructures directly grown on paper and bacterial cellulose substrates without any surface modification layer

Author

Ana Flávia Nogueira, Talita Mazon, Saionara V. Costa, Maria A. Zaguete, and Agnaldo S. Gonçalves

Subjects
Paper, Materials science, Surface Properties, Nanotechnology, Substrate (electronics), Catalysis, chemistry.chemical_compound, Nano, Materials Chemistry, Hydrothermal synthesis, Cellulose, Bacteria, Metals and Alloys, Chemical modification, General Chemistry, Nanostructures, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry, Bacterial cellulose, Microscopy, Electron, Scanning, Ceramics and Composites, Surface modification, Zinc Oxide, Layer (electronics)
Abstract

In this report, hierarchical ZnO nano- and microstructures were directly grown for the first time on a bacterial cellulose substrate and on two additional different papers by hydrothermal synthesis without any surface modification layer. Compactness and smoothness of the substrates are two important parameters that allow the growth of oriented structures.

Published
2013

11. Development of a 3D origami multiplex electrochemical immunodevice using a nanoporous silver-paper electrode and metal ion functionalized nanoporous gold–chitosan

Author

Xianrang Song, Jinghua Yu, Long Li, Meng Li, Weiping Li, Shenguang Ge, and Mei Yan

Subjects
Paper, Silver, Materials science, Working electrode, Microfluidics, Nanotechnology, Electrochemistry, Sensitivity and Specificity, Catalysis, Metal, Chitosan, chemistry.chemical_compound, Materials Chemistry, Animals, Humans, Multiplex, Electrodes, Immunoassay, Nanoporous, Metals and Alloys, Electrochemical Techniques, Equipment Design, General Chemistry, Microfluidic Analytical Techniques, Carcinoembryonic Antigen, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry, visual_art, Electrode, Ceramics and Composites, visual_art.visual_art_medium, Gold, alpha-Fetoproteins
Abstract

A simple and sensitive 3D microfluidic origami multiplex electrochemical immunodevice was developed for the first time using a novel nanoporous silver modified paper working electrode as a sensor platform and different metal ion functionalized nanoporous gold-chitosan as a tracer.

Published
2013

12. Electrochemical immunoassay on a 3D microfluidic paper-based device

Author

Xianrang Song, Jinghua Yu, Mei Yan, Lei Ge, and Dejin Zang

Subjects
Immunoassay, Paper, Time Factors, Materials science, Microfluidics, Metals and Alloys, Analytical chemistry, Nanotechnology, General Chemistry, Paper based, Microfluidic Analytical Techniques, Catalysis, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Electrochemical immunoassay, Microscopy, Electron, Scanning, Materials Chemistry, Ceramics and Composites
Abstract

A high-throughput, simple, fast, low-cost and sensitive paper-based electrochemical immunodevice has been demonstrated based on a functionalized 3D paper-based device for point-of-care diagnosis.

Published
2012

13. Detection of DNA using bioactive paper strips

Author

Yaqin Xu, Robert Pelton, M. Monsur Ali, Carlos D. M. Filipe, Yingfu Li, and Sergio D. Aguirre

Subjects
Paper, DNA nanoball sequencing, Base Sequence, Chemistry, Hybridization probe, Metals and Alloys, Nucleic Acid Hybridization, DNA, General Chemistry, Molecular biology, Catalysis, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, chemistry.chemical_compound, Nucleic acid thermodynamics, Rolling circle replication, Materials Chemistry, Ceramics and Composites, A-DNA, Primer (molecular biology), Ligation
Abstract

Paper strips containing DNA-conjugated microgels (MG) are used to achieve sensitive DNA detection in three steps: target DNA promoted ligation of a DNA primer to the MG-bound DNA, rolling circle amplification (RCA) between the primer and a circle DNA, and hybridization of the RCA products and a fluorescent DNA probe.

Published
2009