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Rando G, Scalone E, Sfameni S, Plutino MR. Functional Bio-Based Polymeric Hydrogels for Wastewater Treatment: From Remediation to Sensing Applications. Gels 2024; 10:498. [PMID: 39195027 DOI: 10.3390/gels10080498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 07/23/2024] [Accepted: 07/25/2024] [Indexed: 08/29/2024] Open
Abstract
In recent years, many researchers have focused on designing hydrogels with specific functional groups that exhibit high affinity for various contaminants, such as heavy metals, organic pollutants, pathogens, or nutrients, or environmental parameters. Novel approaches, including cross-linking strategies and the use of nanomaterials, have been employed to enhance the structural integrity and performance of the desired hydrogels. The evolution of these hydrogels is further highlighted, with an emphasis on fine-tuning features, including water absorption capacity, environmental pollutant/factor sensing and selectivity, and recyclability. Furthermore, this review investigates the emerging topic of stimuli-responsive smart hydrogels, underscoring their potential in both sorption and detection of water pollutants. By critically assessing a wide range of studies, this review not only synthesizes existing knowledge, but also identifies advantages and limitations, and describes future research directions in the field of chemically engineered hydrogels for water purification and monitoring with a low environmental impact as an important resource for chemists and multidisciplinary researchers, leading to improvements in sustainable water management technology.
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Affiliation(s)
- Giulia Rando
- Institute for the Study of Nanostructured Materials, ISMN-CNR, URT of Messina, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
| | - Elisabetta Scalone
- Institute for the Study of Nanostructured Materials, ISMN-CNR, URT of Messina, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences (ChiBioFarAm), University of Messina, 98166 Messina, Italy
| | - Silvia Sfameni
- Institute for the Study of Nanostructured Materials, ISMN-CNR, URT of Messina, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
| | - Maria Rosaria Plutino
- Institute for the Study of Nanostructured Materials, ISMN-CNR, URT of Messina, c/o Department of ChiBioFarAm, University of Messina, 98166 Messina, Italy
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2
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Influence of Conditions of Preparation of C,N,F-TiO2 Nanostructures on Their Photocatalytic Activity in Doxycycline Photodegradation Process. THEOR EXP CHEM+ 2022. [DOI: 10.1007/s11237-022-09720-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Kaewtong C, Wanich S, Wanno B, Tuntulani T, Pulpoka B. An ultra-low detection limit gold(III) probe based on rhodamine-covalent hydrogel sensor. ENVIRONMENTAL TECHNOLOGY 2022; 43:1723-1731. [PMID: 33280570 DOI: 10.1080/09593330.2020.1850873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 11/08/2020] [Indexed: 06/12/2023]
Abstract
A highly sensitive and selective optical chemosensor (Arg-Rhoen) for determination of Au3+ was prepared by covalent immobilization of rhodamine ethylenediamine on agarose gel. Spectrophotometric studies of complex formation, chemical structures and purity of the hydrogel sensor were carried out using TGA, NMR, TEM, and IR. The complexation study results indicated that this probe can selectively detect Au3+ via a metal ion chelation-induced ring-opening reaction, and then caused a remarkable colour change from colourless to pink and a strong fluorescence enhancement. Theoretical DFT calculation results suggested that the hydrogel sensor Arg-Rhoen formed stable complexes with Au3+ through a large number of cation-dipole interactions. Reusability has been established by repeatedly dipping and rinsing the hydrogel in aqueous Au3+ and EDTA in basic solutions. We believe that this approach may provide an easily measurable and inherently sensitive method for Au3+ detection in environmental and biological applications.
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Affiliation(s)
- Chatthai Kaewtong
- Faculty of Science, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Nanotechnology Research Unit and Supramolecular Chemistry Research Unit, Mahasarakham University, Mahasarakham, Thailand
| | - Suchana Wanich
- Faculty of Science, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Nanotechnology Research Unit and Supramolecular Chemistry Research Unit, Mahasarakham University, Mahasarakham, Thailand
| | - Banchob Wanno
- Faculty of Science, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Nanotechnology Research Unit and Supramolecular Chemistry Research Unit, Mahasarakham University, Mahasarakham, Thailand
| | - Thawatchai Tuntulani
- Faculty of Science, Department of Chemistry, Supramolecular Chemistry Research Unit, Chulalongkorn University, Bangkok, Thailand
| | - Buncha Pulpoka
- Faculty of Science, Department of Chemistry, Supramolecular Chemistry Research Unit, Chulalongkorn University, Bangkok, Thailand
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4
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Abstract
Colloidal self-assembly refers to a solution-processed assembly of nanometer-/micrometer-sized, well-dispersed particles into secondary structures, whose collective properties are controlled by not only nanoparticle property but also the superstructure symmetry, orientation, phase, and dimension. This combination of characteristics makes colloidal superstructures highly susceptible to remote stimuli or local environmental changes, representing a prominent platform for developing stimuli-responsive materials and smart devices. Chemists are achieving even more delicate control over their active responses to various practical stimuli, setting the stage ready for fully exploiting the potential of this unique set of materials. This review addresses the assembly of colloids into stimuli-responsive or smart nanostructured materials. We first delineate the colloidal self-assembly driven by forces of different length scales. A set of concepts and equations are outlined for controlling the colloidal crystal growth, appreciating the importance of particle connectivity in creating responsive superstructures. We then present working mechanisms and practical strategies for engineering smart colloidal assemblies. The concepts underpinning separation and connectivity control are systematically introduced, allowing active tuning and precise prediction of the colloidal crystal properties in response to external stimuli. Various exciting applications of these unique materials are summarized with a specific focus on the structure-property correlation in smart materials and functional devices. We conclude this review with a summary of existing challenges in colloidal self-assembly of smart materials and provide a perspective on their further advances to the next generation.
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Affiliation(s)
- Zhiwei Li
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Qingsong Fan
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, California 92521, United States
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5
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Portable Au Nanoparticle-Based Colorimetric Sensor Strip for Rapid On-Site Detection of Cd2+ Ions in Potable Water. BIOCHIP JOURNAL 2021. [DOI: 10.1007/s13206-021-00029-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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6
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Bhamore JR, Park TJ, Kailasa SK. Glutathione-capped Syzygium cumini carbon dot-amalgamated agarose hydrogel film for naked-eye detection of heavy metal ions. J Anal Sci Technol 2020. [DOI: 10.1186/s40543-020-00208-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractDevelopment of a facile and sensitive analytical tool for the detection of heavy metal ions is still a challenging task because of interference from other chemical species. In this work, glutathione (GSH)-capped Syzygium cumini carbon dots (CDs) have been integrated with agarose hydrogel film and used as an amalgamated solid probe for sensing of different metal ions (Pb2+, Fe3+, and Mn2+). The synthesis of a solid sensing platform is based on the electrostatic interactions between GSH-capped Syzygium cumini CDs and agarose hydrogel. The developed hydrogel-based solid probe exhibited good linearities with the concentration ranges of metal ions from 0.005 to 0.075, 0.0075 to 0.1, and 0.0075 to 0.1 mM with detection limits of 1.3, 2.5, and 2.1 μM for Pb2+, Fe3+, and Mn2+ ions, respectively.
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7
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Hong W, Yuan Z, Chen X. Structural Color Materials for Optical Anticounterfeiting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e1907626. [PMID: 32187853 DOI: 10.1002/smll.201907626] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/14/2020] [Accepted: 02/23/2020] [Indexed: 05/23/2023]
Abstract
The counterfeiting of goods is growing worldwide, affecting practically any marketable item ranging from consumer goods to human health. Anticounterfeiting is essential for authentication, currency, and security. Anticounterfeiting tags based on structural color materials have enjoyed worldwide and long-term commercial success due to their inexpensive production and exceptional ease of percept. However, conventional anticounterfeiting tags of holographic gratings can be readily copied or imitated. Much progress has been made recently to overcome this limitation by employing sufficient complexity and stimuli-responsive ability into the structural color materials. Moreover, traditional processing methods of structural color tags are mainly based on photolithography and nanoimprinting, while new processing methods such as the inkless printing and additive manufacturing have been developed, enabling massive scale up fabrication of novel structural color security engineering. This review presents recent breakthroughs in structural color materials, and their applications in optical encryption and anticounterfeiting are discussed in detail. Special attention is given to the unique structures for optical anticounterfeiting techniques and their optical aspects for encryption. Finally, emerging research directions and current challenges in optical encryption technologies using structural color materials is presented.
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Affiliation(s)
- Wei Hong
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Engineering Technology Research Center for High-Performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Zhongke Yuan
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Engineering Technology Research Center for High-Performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Xudong Chen
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Guangdong Engineering Technology Research Center for High-Performance Organic and Polymer Photoelectric Functional Films, School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, P. R. China
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9
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Root HD, Thiabaud G, Sessler JL. Reduced texaphyrin: A ratiometric optical sensor for heavy metals in aqueous solution. Front Chem Sci Eng 2020; 14:19-27. [PMID: 37786429 PMCID: PMC10544843 DOI: 10.1007/s11705-019-1888-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Accepted: 07/21/2019] [Indexed: 10/25/2022]
Abstract
We report here a water-soluble metal cation sensor system based on the as-prepared or reduced form of an expanded porphyrin, texaphyrin. Upon metal complexation, a change in the redox state of the ligand occurs that is accompanied by a color change from red to green. Although long employed for synthesis in organic media, we have now found that this complexation-driven redox behavior may be used to achieve the naked eye detectable colorimetric sensing of several number of less-common metal ions in aqueous media. Exposure to In(III), Hg(II), Cd(II), Mn(II), Bi(III), Co(II), and Pb(II) cations leads to a colorimetric response within 10 min. This process is selective for Hg(II) under conditions of competitive analysis. Furthermore, among the subset of response-producing cations, In(III) proved unique in giving rise to a ratiometric change in the ligand-based fluorescence features, including an overall increase in intensity. The cation selectivity observed in aqueous media stands in contrast to what is seen in organic solvents, where a wide range of texaphyrin metal complexes may be prepared. The formation of metal cation complexes under the present aqueous conditions was confirmed by reversed phase high-performance liquid chromatography, ultra-violet-visible absorption and fluorescence spectroscopies, and high-resolution mass spectrometry.
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Affiliation(s)
- Harrison D Root
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712-1224, USA
| | - Gregory Thiabaud
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712-1224, USA
| | - Jonathan L Sessler
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712-1224, USA
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10
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Functional Micro–Nano Structure with Variable Colour: Applications for Anti-Counterfeiting. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/6519018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Colour patterns based on micro-nano structure have attracted enormous research interests due to unique optical switches and smart surface applications in photonic crystal, superhydrophobic surface modification, controlled adhesion, inkjet printing, biological detection, supramolecular self-assembly, anti-counterfeiting, optical device and other fields. In traditional methods, many patterns of micro-nano structure are derived from changes of refractive index or lattice parameters. Generally, the refractive index and lattice parameters of photonic crystals are processed by common solvents, salts or reactive monomers under specific electric, magnetic and stress conditions. This review focuses on the recent developments in the fabrication of micro-nano structures for patterns including styles, materials, methods and characteristics. It summarized the advantages and disadvantages of inkjet printing, angle-independent photonic crystal, self-assembled photonic crystals by magnetic field force, gravity, electric field, inverse opal photonic crystal, electron beam etching, ion beam etching, laser holographic lithography, imprinting technology and surface wrinkle technology, etc. This review will provide a summary on designing micro-nano patterns and details on patterns composed of photonic crystals by surface wrinkles technology and plasmonic micro-nano technology. In addition, colour patterns as switches are fabricated with good stability and reproducibility in anti-counterfeiting application. Finally, there will be a conclusion and an outlook on future perspectives.
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11
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Zhu Y, Wang J, Zhu X, Wang J, Zhou L, Li J, Mei T, Qian J, Wei L, Wang X. Carbon dot-based inverse opal hydrogels with photoluminescence: dual-mode sensing of solvents and metal ions. Analyst 2019; 144:5802-5809. [PMID: 31465037 DOI: 10.1039/c9an01287g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A dual-mode sensing platform, involving fluorescence and reflectance modes, has been demonstrated for highly sensitive and selective detection of solvents and metal ions based on carbon dot-based inverse opal hydrogels (CD-IOHs). In this work, CD-IOHs have been first synthesized via the typical templating technique. Two kinds of CDs, including solvent and Cu(ii) ion sensitive CDs, have been incorporated into the matrix of IOHs during the co-polymerization of acrylic acid (AA) and 2-hydroxyethyl methacrylate (HEMA). The CD-IOHs not only appear green under daylight but also exhibit stable photoluminescence (PL) under UV light owing to the stop-band effect of photonic crystals and the quantum effect of CDs, respectively. By using these two optical phenomena, for solvent sensing, the CD-IOHs change their colors from green, yellow, and red to a semitransparent state and show good linear sensing with the ethanol content varying from 0 to 45% in reflectance mode, while their PL intensities exhibit a nonlinear detection trend: first an increase and then a decrease with the ethanol content in fluorescence mode. Remarkably, as for metal ion sensing, the CD-IOHs have high selectivity for Cu(ii) ions via the specific PL quenching effect of Cu(ii) ion sensitive CDs. Furthermore, the CD-IOHs show good linear detection in both modes and a wide linear detection range from 0.1 μM to 7 mM. Thus, high selectivity, colorimetric detection, a broad linear detection range, and dual-mode sensing can be realized using the CD-IOHs.
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Affiliation(s)
- Yuhua Zhu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Jianying Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Xiang Zhu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Jun Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Lijie Zhou
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Jinhua Li
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Tao Mei
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Jingwen Qian
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
| | - Lai Wei
- Wuhan Drug Solubilization and Delivery Technology Research Center, School of Environment and Biochemical Engineering, Wuhan Vocational College of Software and Engineering, Wuhan 430205, P. R. China
| | - Xianbao Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Key Laboratory for the Green Preparation and Application of Functional Materials, Ministry of Education, Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan 430062, P. R. China.
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12
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Jia X, Xiao T, Hou Z, Xiao L, Qi Y, Hou Z, Zhu J. Chemically Responsive Photonic Crystal Hydrogels for Selective and Visual Sensing of Thiol-Containing Biomolecules. ACS OMEGA 2019; 4:12043-12048. [PMID: 31460317 PMCID: PMC6682092 DOI: 10.1021/acsomega.9b01257] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 06/25/2019] [Indexed: 06/10/2023]
Abstract
Intracellular thiols (e.g., cysteine, homocysteine, and glutathione) play critical roles in biological functions. Glutathione is the most abundant cellular thiol which is important for preserving redox homeostasis in biosystems. Herein, we demonstrated the fabrication of responsive photonic crystals (RPCs) for selective detection of thiol-containing biomolecules through the combination of self-assembly of monodisperse carbon-encapsulated Fe3O4 nanoparticles (NPs) and in situ photopolymerization. Typically, the polyacrylamide-based PCs were prepared by a cross-linking agent containing disulfide bonds. Interestingly, the specific chemical reaction between the disulfide bonds and thiol-containing biomolecules leads to the decrease of the cross-linking degree for the RPCs, triggering the swelling of the hydrogel and increase of the NP lattice spacing. The reduced glutathione (10-6 to 10-2 mol/L) can be determined by measuring the diffracted wavelength or visually observing the structural color change. Moreover, the RPCs can be used to detect different kinds of thiol-containing biomolecules by a simple color variation due to different reaction rates between disulfide bonds and different thiol-containing biomolecules. This study provides a facile yet effective strategy for visualized determination of the thiol-containing biomolecules.
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Affiliation(s)
- Xiaolu Jia
- School
of Chemistry and Chemical Engineering, Zhoukou
Normal University, Zhoukou 466001, China
| | - Tengfei Xiao
- School
of Chemistry and Chemical Engineering, Zhoukou
Normal University, Zhoukou 466001, China
| | - Zaiyan Hou
- Key
Lab of Materials Chemistry for Energy Conversion and Storage of Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Lina Xiao
- School
of Chemistry and Chemical Engineering, Zhoukou
Normal University, Zhoukou 466001, China
| | - Yuanchun Qi
- School
of Chemistry and Chemical Engineering, Zhoukou
Normal University, Zhoukou 466001, China
| | - Zhiqiang Hou
- School
of Chemistry and Chemical Engineering, Zhoukou
Normal University, Zhoukou 466001, China
| | - Jintao Zhu
- Key
Lab of Materials Chemistry for Energy Conversion and Storage of Ministry
of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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13
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Li X, Wang J, Liu J, Tang J, Wang J, Guo J, Wang Y, Huang L, Aleem AR, Kipper MJ, Belfiore LA. Strong luminescence and sharp heavy metal ion sensitivity of water-soluble hybrid polysaccharide nanoparticles with Eu3+ and Tb3+ inclusions. APPLIED NANOSCIENCE 2019. [DOI: 10.1007/s13204-019-01048-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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14
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Mahmoudian MR, Basirun WJ, Woi PM, Yousefi R, Alias Y. L-Glutamine-assisted synthesis of ZnO oatmeal-like/silver composites as an electrochemical sensor for Pb 2+ detection. Anal Bioanal Chem 2018; 411:517-526. [PMID: 30498983 DOI: 10.1007/s00216-018-1476-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2018] [Revised: 10/28/2018] [Accepted: 11/05/2018] [Indexed: 10/27/2022]
Abstract
We report a green synthesis of oatmeal ZnO/silver composites in the presence of L-glutamine as an electrochemical sensor for Pb2+ detection. The synthesis was performed via the direct reduction of Ag+ in the presence of L-glutamine in NaOH. X-ray diffraction indicated that the Ag+ was completely reduced to metallic Ag. The field emission scanning electron microscopy (FESEM) and energy dispersive X-ray results confirmed an oatmeal-like morphology of the ZnO with the presence of Ag. The FESEM images showed the effect of L-glutamine on the ZnO morphology. The EIS results confirmed a significant decrease in the charge transfer resistance of the modified glassy carbon electrode due to the presence of Ag. From the differential pulse voltammetry results, a linear working range for the concentration of Pb2+ between 5 and 6 nM with LOD of 0.078 nM (S/N = 3) was obtained. The sensitivity of the linear segment is 1.42 μA nM-1 cm-2. The presence of L-glutamine as the capping agent and stabilizer decreases the size of Ag nanoparticles and prevents the agglomeration of ZnO, respectively. Graphical abstract ᅟ.
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Affiliation(s)
| | - Wan Jefrey Basirun
- Department of Chemistry, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Pei Meng Woi
- Department of Chemistry, University of Malaya, 50603, Kuala Lumpur, Malaysia
| | - Ramin Yousefi
- Department of Physics, Masjed-Soleiman Branch Islamic Azad University (IAU), Masjed Soleyman, 649179658, Iran
| | - Yatimah Alias
- Department of Chemistry, University of Malaya, 50603, Kuala Lumpur, Malaysia.
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15
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Sun M, Bai R, Yang X, Song J, Qin M, Suo Z, He X. Hydrogel Interferometry for Ultrasensitive and Highly Selective Chemical Detection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1804916. [PMID: 30252962 DOI: 10.1002/adma.201804916] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/26/2018] [Indexed: 06/08/2023]
Abstract
Developing ultrasensitive chemical sensors with small scale and fast response through simple design and low-cost fabrication is highly desired but still challenging. Herein, a simple and universal sensing platform based on a hydrogel interferometer with femtomol-level sensitivity in detecting (bio)chemical molecules is demonstrated. A unique local concentrating effect (up to 109 folds) in the hydrogel induced by the strong analyte binding and large amount of ligands, combined with the signal amplification effect by optical interference, endows this platform with an ultrahigh sensitivity, specifically 10-14 m for copper ions and 1.0 × 10-11 mg mL-1 for glycoprotein with 2-4 order-of-magnitude enhancement. The specific chemical reactions between selected ligands and target analytes provide high selectivity in detecting complex fluids. This universal principle with broad chemistry, simple physics, and modular design allows for high performance in detecting wide customer choices of analytes, including metal ions and proteins. The scale of the sensor can be down to micrometer size. The nature of the soft gel makes this platform transparent, flexible, stretchable, and compatible with a variety of substrates, showing high sensing stability and robustness after 200 cycles of bending or stretching. The outstanding sensing performance grants this platform great promise in broad practical applications.
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Affiliation(s)
- Mo Sun
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Ruobing Bai
- John A. Paulson School of Engineering and Applied Sciences, Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, MA, 02138, USA
| | - Xingyun Yang
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Jiaqi Song
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Meng Qin
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Zhigang Suo
- John A. Paulson School of Engineering and Applied Sciences, Kavli Institute for Bionano Science and Technology, Harvard University, Cambridge, MA, 02138, USA
| | - Ximin He
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA
- California Nanosystems Institute, Los Angeles, CA, 90095, USA
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16
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Yan PJ, He F, Wang W, Zhang SY, Zhang L, Li M, Liu Z, Ju XJ, Xie R, Chu LY. Novel Membrane Detector Based on Smart Nanogels for Ultrasensitive Detection of Trace Threat Substances. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36425-36434. [PMID: 30261137 DOI: 10.1021/acsami.8b12615] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
A novel membrane detector is developed by a facile strategy combining commercialized membrane and smart nanogels for ultrasensitive and highly selective real-time detection of trace threat substances. On the basis of nanogel filtration and polydopamine adhesion, the membrane detector is fabricated by simply immobilizing smart nanogels onto the multiple pores of a commercialized membrane as the nanosensors and nanovalves. This is demonstrated by incorporating Pb2+-responsive poly( N-isopropylacrylamide- co-acryloylamidobenzo-18-crown-6) nanogels in the straight pores of a commercialized polycarbonate membrane for ultrasensitive and highly selective real-time detection of trace Pb2+. When selectively recognizing the Pb2+ in solution, the smart nanogels in the membrane pores swell, which lead to trans-membrane flux change. Quantitative detection of Pb2+ concentration can be achieved by simply measuring the flow rate of the trans-membrane flow. Due to the multiple nanochannels of nanogel-immobilized pores in the membrane for Pb2+ sensing and flux regulating, ultrasensitive and highly selective real-time detection of trace Pb2+ with concentration as low as 10-10 mol L-1 can be achieved. The nanogel-immobilized membrane detector offers a flexible platform to create versatile new membrane detectors by incorporating diverse smart nanogels for ultrasensitive and highly selective real-time detection of different trace threat substances.
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17
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Perween M, Srivastava DN. A Cost-Effective, Unmodified Platform for the Detection of Heavy Metals via Anodic Stripping Voltammetry at Nanomolar Level. ChemistrySelect 2017. [DOI: 10.1002/slct.201700477] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Mosarrat Perween
- Analytical Division and Centralized Instrument Facility; CSIR-Central Salt & Marine Chemicals Research Institute, Gijubhai Badheka Marg; Bhavnagar 364002 India
- Academy of Scientific and Innovative Research, Gijubhai Badheka Marg; Bhavnagar 364002 India
| | - Divesh N. Srivastava
- Analytical Division and Centralized Instrument Facility; CSIR-Central Salt & Marine Chemicals Research Institute, Gijubhai Badheka Marg; Bhavnagar 364002 India
- Academy of Scientific and Innovative Research, Gijubhai Badheka Marg; Bhavnagar 364002 India
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18
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Preparation of thermo-responsive electrospun nanofibers containing rhodamine-based fluorescent sensor for Cu2+ detection. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1115-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Yan Y, Liu L, Cai Z, Xu J, Xu Z, Zhang D, Hu X. Plasmonic nanoparticles tuned thermal sensitive photonic polymer for biomimetic chameleon. Sci Rep 2016; 6:31328. [PMID: 27502454 PMCID: PMC4977561 DOI: 10.1038/srep31328] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 07/18/2016] [Indexed: 11/08/2022] Open
Abstract
Among many thermo-photochromic materials, the color-changing behavior caused by temperature and light is usually lack of a full color response. And the study on visible light-stimuli chromic response is rarely reported. Here, we proposed a strategy to design a thermo-photochromic chameleon biomimetic material consisting of photonic poly(N-isopropylacrylamide-co-methacrylic acid) copolymer and plasmonic nanoparticles which has a vivid color change triggered by temperature and light like chameleons. We make use of the plasmonic nanoparticles like gold nanoparticles and silver nanoparticles to increase the sensitivity of the responsive behavior and control the lower critical solution temperature of the thermosensitive films by tuning the polymer chain conformation transition. Finally, it is possible that this film would have colorimetric responses to the entire VIS spectrum by the addition of different plasmonic nanoparticles to tune the plasmonic excitation wavelength. As a result, this method provides a potential use in new biosensors, military and many other aspects.
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Affiliation(s)
- Yang Yan
- State Key Laboratory of Metal Matrix Composites, Shanghai JiaoTong University, Shanghai 200240, People’s Republic of China
| | - Lin Liu
- State Key Laboratory of Metal Matrix Composites, Shanghai JiaoTong University, Shanghai 200240, People’s Republic of China
| | - Zihe Cai
- State Key Laboratory of Metal Matrix Composites, Shanghai JiaoTong University, Shanghai 200240, People’s Republic of China
| | - Jiwen Xu
- Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin 541004, People’s Republic of China
| | - Zhou Xu
- State Key Laboratory of Metal Matrix Composites, Shanghai JiaoTong University, Shanghai 200240, People’s Republic of China
| | - Di Zhang
- State Key Laboratory of Metal Matrix Composites, Shanghai JiaoTong University, Shanghai 200240, People’s Republic of China
| | - Xiaobin Hu
- State Key Laboratory of Metal Matrix Composites, Shanghai JiaoTong University, Shanghai 200240, People’s Republic of China
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20
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Ultrasensitive microchip based on smart microgel for real-time online detection of trace threat analytes. Proc Natl Acad Sci U S A 2016; 113:2023-8. [PMID: 26858435 DOI: 10.1073/pnas.1518442113] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Real-time online detection of trace threat analytes is critical for global sustainability, whereas the key challenge is how to efficiently convert and amplify analyte signals into simple readouts. Here we report an ultrasensitive microfluidic platform incorporated with smart microgel for real-time online detection of trace threat analytes. The microgel can swell responding to specific stimulus in flowing solution, resulting in efficient conversion of the stimulus signal into significantly amplified signal of flow-rate change; thus highly sensitive, fast, and selective detection can be achieved. We demonstrate this by incorporating ion-recognizable microgel for detecting trace Pb(2+), and connecting our platform with pipelines of tap water and wastewater for real-time online Pb(2+) detection to achieve timely pollution warning and terminating. This work provides a generalizable platform for incorporating myriad stimuli-responsive microgels to achieve ever-better performance for real-time online detection of various trace threat molecules, and may expand the scope of applications of detection techniques.
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21
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Bai L, Tou LJ, Gao Q, Bose P, Zhao Y. Remarkable colorimetric sensing of heavy metal ions based on thiol-rich nanoframes. Chem Commun (Camb) 2016; 52:13691-13694. [DOI: 10.1039/c6cc08007c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tailored dimercaptosuccinic acid based nanoframes were developed for sensing heavy metal ions, where remarkable colorimetric changes were observed in response to different heavy metal ions. The present work demonstrates a simple and effective approach for the detection of heavy metal ions.
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Affiliation(s)
- Linyi Bai
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Li Juan Tou
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Qiang Gao
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Purnandhu Bose
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- School of Materials Science and Engineering
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22
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March G, Nguyen TD, Piro B. Modified electrodes used for electrochemical detection of metal ions in environmental analysis. BIOSENSORS-BASEL 2015; 5:241-75. [PMID: 25938789 PMCID: PMC4493548 DOI: 10.3390/bios5020241] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 04/14/2015] [Accepted: 04/22/2015] [Indexed: 01/16/2023]
Abstract
Heavy metal pollution is one of the most serious environmental problems, and regulations are becoming stricter. Many efforts have been made to develop sensors for monitoring heavy metals in the environment. This review aims at presenting the different label-free strategies used to develop electrochemical sensors for the detection of heavy metals such as lead, cadmium, mercury, arsenic etc. The first part of this review will be dedicated to stripping voltammetry techniques, on unmodified electrodes (mercury, bismuth or noble metals in the bulk form), or electrodes modified at their surface by nanoparticles, nanostructures (CNT, graphene) or other innovative materials such as boron-doped diamond. The second part will be dedicated to chemically modified electrodes especially those with conducting polymers. The last part of this review will focus on bio-modified electrodes. Special attention will be paid to strategies using biomolecules (DNA, peptide or proteins), enzymes or whole cells.
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Affiliation(s)
| | - Tuan Dung Nguyen
- Institute for Tropical Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay District, Hanoi, Vietnam.
| | - Benoit Piro
- Chemistry Department, University Paris Diderot, Sorbonne Paris Cité, ITODYS, UMR 7086 CNRS, 15 rue J-A de Baïf, 75205 Paris Cedex 13, France.
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23
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Gogoi N, Barooah M, Majumdar G, Chowdhury D. Carbon dots rooted agarose hydrogel hybrid platform for optical detection and separation of heavy metal ions. ACS APPLIED MATERIALS & INTERFACES 2015; 7:3058-67. [PMID: 25567035 DOI: 10.1021/am506558d] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A robust solid sensing platform for an on-site operational and accurate detection of heavy metal is still a challenge. We introduce chitosan based carbon dots rooted agarose hydrogel film as a hybrid solid sensing platform for detection of heavy metal ions. The fabrication of the solid sensing platform is centered on simple electrostatic interaction between the NH3+ group present in the carbon dots and the OH- groups present in agarose. Simply on dipping the hydrogel film strip into the heavy metal ion solution, in particular Cr6+, Cu2+, Fe3+, Pb2+, Mn2+, the strip displays a color change, viz., Cr6+→yellow, Cu2+→blue, Fe3+→brown, Pb2+→white, Mn2+→tan brown. The optical detection limit of the respective metal ion is found to be 1 pM for Cr6+, 0.5 μM for Cu2+, and 0.5 nM for Fe3+, Pb2+, and Mn2+ by studying the changes in UV-visible reflectance spectrum of the hydrogel film. Moreover, the hydrogel film finds applicability as an efficient filtration membrane for separation of these quintet heavy metal ions. The strategic fundamental feature of this sensing platform is the successful capability of chitosan to form colored chelates with transition metals. This proficient hybrid hydrogel solid sensing platform is thus the most suitable to employ as an on-site operational, portable, cheap colorimetric-optical detector of heavy metal ion with potential skill in their separation. Details of the possible mechanistic insight into the colorimetric detection and ion separation are also discussed.
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Affiliation(s)
- Neelam Gogoi
- Material Nanochemistry Laboratory, Physical Sciences Division, Institute of Advanced Study in Science and Technology , Paschim Boragaon, Garchuk, Guwahati, 781035, India
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24
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Yan Y, Yin M, Hong W, Xu Z, Hu XB. Imprinted photonic hydrogel pillar for self-reporting water treatment of heavy metal ions. RSC Adv 2015. [DOI: 10.1039/c5ra16024c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work we synthesized a self-reporting water absorbent for heavy metal ions by assembling photonic crystals (PC) with imprinted hydrogel pillars.
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Affiliation(s)
- Yang Yan
- State Key Laboratory of Metal Matrix Composites
- Shanghai JiaoTong University
- Shanghai 200240
- People’s Republic of China
| | - Meng Yin
- Department of Cardiothoracic Surgery
- Shanghai JiaoTong University Affiliated Shanghai Children’s Medical Center
- Shanghai
- People’s Republic of China
| | - Wei Hong
- Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education
- School of Chemistry and Chemical Engineering
- Sun Yat-sen University
- Guangzhou
- People’s Republic of China
| | - Zhou Xu
- State Key Laboratory of Metal Matrix Composites
- Shanghai JiaoTong University
- Shanghai 200240
- People’s Republic of China
| | - Xiao-Bin Hu
- State Key Laboratory of Metal Matrix Composites
- Shanghai JiaoTong University
- Shanghai 200240
- People’s Republic of China
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25
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Giri D, Patra SK. Benzodithieno-imidazole based π-conjugated fluorescent polymer probe for selective sensing of Cu2+. RSC Adv 2015. [DOI: 10.1039/c5ra14079j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
A benzodithieno-imidazole based π-conjugated fluorescent polymer probe shows excellent selectivity towards Cu2+ions through fluorescence quenching.
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Affiliation(s)
- Dipanjan Giri
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur-721302
- India
| | - Sanjib K Patra
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- Kharagpur-721302
- India
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26
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Datta S, Bhattacharya S. Ag+-induced reverse vesicle to helical fiber transformation in a self-assembly by adjusting the keto–enol equilibrium of a chiral salicylideneaniline. Chem Commun (Camb) 2015; 51:13929-32. [DOI: 10.1039/c5cc05367f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chiral salicylideneaniline shows Ag+-induced reverse vesicle-to-helical nanofiber transformation accompanied by sol-to-gel transition at room temperature.
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Affiliation(s)
- Sougata Datta
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore
- India
| | - Santanu Bhattacharya
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore
- India
- Chemical Biology Unit
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27
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Agrawal KL, Shtein M. Self-powered ion detectors based on dye-sensitized photovoltaics. NANOSCALE 2014; 6:11019-11023. [PMID: 25135606 DOI: 10.1039/c4nr03417a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Autonomous sensing of metal ion contamination in remote environments with high reproducibility and sensitivity could unlock many new applications, but involves trade-offs between compactness, sensitivity, and power provisioning. In prior demonstrations of semi-autonomous sensors, the power source (e.g. a solar cell) was an additional component. Here, we demonstrate a concept, wherein a dye-sensitized solar cell is used for both power generation and sensitive detection of ionic analytes, unlocking a new pathway for ultra-miniaturization and integration.
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Affiliation(s)
- Kanika L Agrawal
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA.
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28
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Chen AL, Yu HR, Ju XJ, Xie R, Wang W, Chu LY. Visual detection of lead(ii) using a simple device based on P(NIPAM-co-B18C6Am) hydrogel. RSC Adv 2014. [DOI: 10.1039/c4ra03085k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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29
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Belitsky JM, Lye DS, Gittleman HR, Gorlin TA, Gorham AN, Moore CA, Chaves MB, Ellowitz MZ. Colorimetric metal ion binding of catechol-based coatings inspired by melanin and molecular imprinting. Supramol Chem 2013. [DOI: 10.1080/10610278.2013.852672] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Jason M. Belitsky
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH 44074, USA
| | - Diane S. Lye
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH 44074, USA
| | - Haley R. Gittleman
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH 44074, USA
| | - Thomas A. Gorlin
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH 44074, USA
| | - Arthur N. Gorham
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH 44074, USA
| | - Christine A. Moore
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH 44074, USA
| | - Matthew B. Chaves
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH 44074, USA
| | - Micah Z. Ellowitz
- Department of Chemistry and Biochemistry, Oberlin College, Oberlin, OH 44074, USA
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30
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Döring A, Birnbaum W, Kuckling D. Responsive hydrogels--structurally and dimensionally optimized smart frameworks for applications in catalysis, micro-system technology and material science. Chem Soc Rev 2013; 42:7391-420. [PMID: 23677178 DOI: 10.1039/c3cs60031a] [Citation(s) in RCA: 257] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although the technological and scientific importance of functional polymers has been well established over the last few decades, the most recent focus that has attracted much attention has been on stimuli-responsive polymers. This group of materials is of particular interest due to its ability to respond to internal and/or external chemico-physical stimuli, which is often manifested as large macroscopic responses. Aside from scientific challenges of designing stimuli-responsive polymers, the main technological interest lies in their numerous applications ranging from catalysis through microsystem technology and chemomechanical actuators to sensors that have been extensively explored. Since the phase transition phenomenon of hydrogels is theoretically well understood advanced materials based on the predictions can be prepared. Since the volume phase transition of hydrogels is a diffusion-limited process the size of the synthesized hydrogels is an important factor. Consistent downscaling of the gel size will result in fast smart gels with sufficient response times. In order to apply smart gels in microsystems and sensors, new preparation techniques for hydrogels have to be developed. For the up-coming nanotechnology, nano-sized gels as actuating materials would be of great interest.
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Affiliation(s)
- Artjom Döring
- Chemistry Department, University of Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany
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31
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Hong W, Li H, Hu X, Zhao B, Zhang F, Zhang D, Xu Z. Wettability gradient colorimetric sensing by amphiphilic molecular response. Chem Commun (Camb) 2013; 49:728-30. [DOI: 10.1039/c2cc37780b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Stein A, Wilson BE, Rudisill SG. Design and functionality of colloidal-crystal-templated materials—chemical applications of inverse opals. Chem Soc Rev 2013; 42:2763-803. [DOI: 10.1039/c2cs35317b] [Citation(s) in RCA: 435] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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33
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Yang PJ, Chu HC, Chen TC, Lin HC. Recoverable fluorescence chemosensors for Ni2+ ions based on hydrogen-bonded side-chain copolymers presenting pendent benzoic acid and pyridyl receptor units. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31367g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Xu D, Zhu W, An Q, Li W, Li X, Yang H, Yin J, Li G. Clickable inverse opal: a useful platform for fabrication of stimuli-responsive photonic materials. Chem Commun (Camb) 2012; 48:3494-6. [DOI: 10.1039/c2cc18081b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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