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Ai Z, Zhang L, Chen Y, Meng Y, Long Y, Xiao J, Yang Y, Guo W, Wang Y, Jiang J. Customizable Colorimetric Sensor Array via a High-Throughput Robot for Mitigation of Humidity Interference in Gas Sensing. ACS Sens 2024. [PMID: 39086324 DOI: 10.1021/acssensors.4c01083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
One challenge for gas sensors is humidity interference, as dynamic humidity conditions can cause unpredictable fluctuations in the response signal to analytes, increasing quantitative detection errors. Here, we introduce a concept: Select humidity sensors from a pool to compensate for the humidity signal for each gas sensor. In contrast to traditional methods that extremely suppress the humidity response, the sensor pool allows for more accurate gas quantification across a broader range of application scenarios by supplying customized, high-dimensional humidity response data as extrinsic compensation. As a proof-of-concept, mitigation of humidity interference in colorimetric gas quantification was achieved in three steps. First, across a ten-dimensional variable space, an algorithm-driven high-throughput experimental robot discovered multiple local optimum regions where colorimetric humidity sensing formulations exhibited high evaluations on sensitivity, reversibility, response time, and color change extent for 10-90% relative humidity (RH) in room temperature (25 °C). Second, from the local optimum regions, 91 sensing formulations with diverse variables were selected to construct a parent colorimetric humidity sensor array as the sensor pool for humidity signal compensation. Third, the quasi-optimal sensor subarrays were identified as customized humidity signal compensation solutions for different gas sensing scenarios across an approximately full dynamic range of humidity (10-90% RH) using an ingenious combination optimization strategy, and two accurate quantitative detections were attained: one with a mean absolute percentage error (MAPE) reduction from 4.4 to 0.75% and the other from 5.48 to 1.37%. Moreover, the parent sensor array's excellent humidity selectivity was validated against 10 gases. This work demonstrates the feasibility and superiority of robot-assisted construction of a customizable parent colorimetric sensor array to mitigate humidity interference in gas quantification.
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Affiliation(s)
- Zhehong Ai
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310024, China
- Research Center for High Efficiency Computing System, Zhejiang Laboratory, Hangzhou, Zhejiang 311121, China
| | - Longhan Zhang
- Research Center for New Materials Computing, Zhejiang Laboratory, Hangzhou, Zhejiang 311121, China
- Hong Kong University of Science and Technology (Guangzhou), Guangzhou 511458, China
| | - Yangguan Chen
- Research Center for New Materials Computing, Zhejiang Laboratory, Hangzhou, Zhejiang 311121, China
| | - Yu Meng
- School of Computer and Information Technology, Beijing Jiaotong University, Beijing 100091, China
| | - Yifan Long
- Research Center for Space Computing System, Zhejiang Laboratory, Hangzhou, Zhejiang 311121, China
| | - Julin Xiao
- Research Center for Novel Computing Sensing and Intelligent Processing, Zhejiang Laboratory, Hangzhou, Zhejiang 311121, China
| | - Yao Yang
- Research Center for Space Computing System, Zhejiang Laboratory, Hangzhou, Zhejiang 311121, China
| | - Wei Guo
- School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Yueming Wang
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang 310024, China
- Key Laboratory of Space Active Optoelectronics Technology, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
| | - Jing Jiang
- Research Center for High Efficiency Computing System, Zhejiang Laboratory, Hangzhou, Zhejiang 311121, China
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2
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Kubo T, Yagishita M, Tanigawa T, Konishi-Yamada S, Nakajima D. Enhanced molecular recognition with longer chain crosslinkers in molecularly imprinted polymers for an efficient separation of TR active substances. RSC Adv 2024; 14:12021-12029. [PMID: 38623302 PMCID: PMC11017824 DOI: 10.1039/d3ra08854e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 04/03/2024] [Indexed: 04/17/2024] Open
Abstract
Molecular imprinting technology has been widely studied as a technique to obtain molecular recognition by artificial means. Selecting functional monomers or polymerization conditions plays a key role to optimize molecularly imprinted polymer (MIP) synthesis. To date, there have been few reports well exploiting the effect of crosslinkers. Here, in this study, we synthesized the MIPs using poly(ethyleneglycol) dimethacrylate with different units of ethylene oxide (n = 1 to 23) as crosslinkers to observe the molecular recognition abilities. The MIPs were attached to the surface of mono-dispersed polymer beads. The obtained spherical MIPs and non-imprinted polymers were filled in a column for high performance liquid chromatography. Then the retention selectivity toward TR active substances was evaluated. The result revealed that the recognition ability did not improve regardless of the amount of ethylene oxide. With the crosslinker (n = 9), extremely high retention selectivity was observed, which provides at most around ten times as large imprinting factors in comparison with other MIPs. Interestingly, we obtained the highest recognition ability at around polymerization temperature from the evaluation of the recognition ability toward temperature shift using the MIP (n = 9). In general, hydrogen bonding based on MIPs provides high recognition ability at low temperature, whereas, this study indicates that the use of flexible crosslinkers may enable the synthesis of MIPs that precisely memorize the conditions of polymerization. Lastly, we simultaneously analyzed the TR active substances using the column filled with MIPs (n = 9). The result showed relatively linear correlation between the retention strength of each substance and phycological activity toward TR obtained by yeast assay. Therefore, we can conclude that an induced fit like the receptor emerged by constructing the flexible molecular recognition field.
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Affiliation(s)
- Takuya Kubo
- Division of Applied Life Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University 1-5 Shimogamo Hangi-cho, Sakyo-ku Kyoto 606-8522 Japan
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Mayuko Yagishita
- Department of Life and Environmental Science, Prefectural University of Hiroshima Shobara City Hiroshima 727-0023 Japan
| | - Tetsuya Tanigawa
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Sayaka Konishi-Yamada
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University Katsura, Nishikyo-ku Kyoto 615-8510 Japan
| | - Daisuke Nakajima
- Health and Environmental Risk Division, National Institute for Environmental Studies (NIES) Tsukuba City Ibaraki 305-8506 Japan
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Hamza TA, Hussein ES, Kadhim MM, Rheima AM, Al-Marjani MF, Alattia LH, Mahdi ZM, Hachim SK, Adel M. Cyclophosphamide drug sensing characteristics by using pure and Ti-doped graphyne-like BN-yne. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
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4
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Witkiewicz Z, Jasek K, Grabka M. Semiconductor Gas Sensors for Detecting Chemical Warfare Agents and Their Simulants. SENSORS (BASEL, SWITZERLAND) 2023; 23:s23063272. [PMID: 36991985 PMCID: PMC10058525 DOI: 10.3390/s23063272] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/12/2023] [Accepted: 03/17/2023] [Indexed: 05/27/2023]
Abstract
On-site detection of chemical warfare agents (CWAs) can be performed by various analytical techniques. Devices using well-established techniques such as ion mobility spectrometry, flame photometry, infrared and Raman spectroscopy or mass spectrometry (usually combined with gas chromatography) are quite complex and expensive to purchase and operate. For this reason, other solutions based on analytical techniques well suited to portable devices are still being sought. Analyzers based on simple semiconductor sensors may be a potential alternative to the currently used CWA field detectors. In sensors of this type, the conductivity of the semiconductor layer changes upon interaction with the analyte. Metal oxides (both in the form of polycrystalline powders and various nanostructures), organic semiconductors, carbon nanostructures, silicon and various composites that are a combination of these materials are used as a semiconductor material. The selectivity of a single oxide sensor can be adjusted to specific analytes within certain limits by using the appropriate semiconductor material and sensitizers. This review presents the current state of knowledge and achievements in the field of semiconductor sensors for CWA detection. The article describes the principles of operation of semiconductor sensors, discusses individual solutions used for CWA detection present in the scientific literature and makes a critical comparison of them. The prospects for the development and practical application of this analytical technique in CWA field analysis are also discussed.
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Detection of sulfasalazine drug by pure and doped boron nitride nanoclusters in solvent and gas phases using the DFT and TD-DFT calculation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Sensing of carbamazepine by AlN and BN nanoclusters in gas and solvent phases: DFT and TD-DFT calculation. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118750] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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7
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Pan Y, Wang P, Zhang G, Yan C, Zhang L, Guo T, Wang W, Zhai S. Development of a SAW poly(epichlorohydrin) gas sensor for detection of harmful chemicals. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1611-1622. [PMID: 35383795 DOI: 10.1039/d2ay00196a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The uniformity and compactness of the surface of a viscoelastic sensitive film are among the most important factors that influence the characteristics of a surface acoustic wave (SAW) gas sensor, directly affecting the detection sensitivity of a SAW sensor on a target gas. In this paper, poly(epichlorohydrin) (PECH) with viscoelastic properties was used as sensitive film for the detection of 2-chloroethyl ethyl sulfide (CEES), a common simulant of the chemical agent mustard gas. Nanoscale films were prepared using a spin coating technology on a SAW delay line of 200 MHz. Films were evaluated using polarizing microscopy and atomic force microscopy and observed with uniform surface states and particle diameter in the cluster region of 4.52-5.22 μm. The interface parameters, including contact angle, surface tension, Gibbs free energy, work of adhesion, work of immersion, and spreading coefficient values were 9.31° to 39.63°, 22.475 to 29.945 mN m-1, -85.70 to -78.08 J m-2, 78.08 to 85.70 J m-2, -42.62 to -35.00 J m-2, and 0.46 to 8.08 J m-1, respectively. These values were obtained by experiments combined with the Young T equation and Gibbs adsorption isotherm, and the surface analysis was carried out theoretically. The glass transition temperature (-22.4 °C), viscosity, pyrolysis, and other physical characteristics of the prepared PECH were discussed. Five SAW sensors prepared at the same time were used to test the repeatability of CEES measurements at one concentration, where the consistency of the sensor preparation was confirmed. At a concentration of 13.6 mg m-3 for CEES, 10 consecutive detection results showed good repeatability (i.e., standard deviation = 0.295, coefficient of variance = 0.021, and population mean deviation = 0.364). At room temperature (20 °C ± 5 °C), different concentrations of CEES were detected using the developed sensor, which showed good linearity in the concentration range of 1.9-19.6 mg m-3 (y = 0.0309 + 1.13x, r = 0.99478). The limit of detection was 0.85 mg m-3, the limit of quantitation was 1.91 mg m-3, and the sensitivity of the SAW sensor was 1.13 mV (mg m-3). The adsorption mechanism related to PECH in the detection of CEES was also discussed.
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Affiliation(s)
- Yong Pan
- State Key Laboratory of NBC Protection for Civilian, 102205 Beijing, China.
| | - Puhong Wang
- State Key Laboratory of NBC Protection for Civilian, 102205 Beijing, China.
| | - Genwei Zhang
- State Key Laboratory of NBC Protection for Civilian, 102205 Beijing, China.
| | - Cancan Yan
- State Key Laboratory of NBC Protection for Civilian, 102205 Beijing, China.
| | - Lin Zhang
- State Key Laboratory of NBC Protection for Civilian, 102205 Beijing, China.
| | - Tengxiao Guo
- State Key Laboratory of NBC Protection for Civilian, 102205 Beijing, China.
| | - Wen Wang
- Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.
| | - Shoupei Zhai
- State Key Laboratory of NBC Protection for Civilian, 102205 Beijing, China.
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8
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Veloz Martínez I, Ek JI, Ahn EC, Sustaita AO. Molecularly imprinted polymers via reversible addition-fragmentation chain-transfer synthesis in sensing and environmental applications. RSC Adv 2022; 12:9186-9201. [PMID: 35424874 PMCID: PMC8985154 DOI: 10.1039/d2ra00232a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 02/23/2022] [Indexed: 12/14/2022] Open
Abstract
Molecularly imprinted polymers (MIP) have shown their potential as artificial and selective receptors for environmental monitoring. These materials can be tailor-made to achieve a specific binding event with a template through a chosen mechanism. They are capable of emulating the recognition capacity of biological receptors with superior stability and versatility of integration in sensing platforms. Commonly, these polymers are produced by traditional free radical bulk polymerization (FRP) which may not be the most suitable for enhancing the intended properties due to the poor imprinting performance. To improve the imprinting technique and the polymer capabilities, controlled/living radical polymerization (CRP) has been used to overcome the main drawbacks of FRP. Combining CRP techniques such as RAFT (reversible addition-fragmentation chain transfer) with MIP has achieved higher selectivity, sensitivity, and sorption capacity of these polymers when implemented as the transductor element in sensors. The present work focuses on RAFT-MIP design and synthesis strategies to enhance the binding affinities and their implementation in environmental contaminant sensing applications.
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Affiliation(s)
- Irvin Veloz Martínez
- School of Engineering and Science, Tecnologico de Monterrey Av. Eugenio Garza Sada 2501 Monterrey N.L. 64849 Mexico
| | - Jackeline Iturbe Ek
- School of Engineering and Science, Tecnologico de Monterrey Av. Eugenio Garza Sada 2501 Monterrey N.L. 64849 Mexico
| | - Ethan C Ahn
- Department of Electrical and Computer Engineering, The University of Texas at San Antonio San Antonio TX 78249 USA
| | - Alan O Sustaita
- School of Engineering and Science, Tecnologico de Monterrey Av. Eugenio Garza Sada 2501 Monterrey N.L. 64849 Mexico
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Baudis S, Behl M. High-Throughput and Combinatorial Approaches for the Development of Multifunctional Polymers. Macromol Rapid Commun 2021; 43:e2100400. [PMID: 34460146 DOI: 10.1002/marc.202100400] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/18/2021] [Indexed: 01/22/2023]
Abstract
High-throughput (HT) development of new multifunctional polymers is accomplished by the combination of different HT tools established in polymer sciences in the last decade. Important advances are robotic/HT synthesis of polymer libraries, the HT characterization of polymers, and the application of spatially resolved polymer library formats, explicitly microarray and gradient libraries. HT polymer synthesis enables the generation of material libraries with combinatorial design motifs. Polymer composition, molecular weight, macromolecular architecture, etc. may be varied in a systematic, fine-graded manner to obtain libraries with high chemical diversity and sufficient compositional resolution as model systems for the screening of these materials for the functions aimed. HT characterization allows a fast assessment of complementary properties, which are employed to decipher quantitative structure-properties relationships. Moreover, these methods facilitate the HT determination of important surface parameters by spatially resolved characterization methods, including time-of-flight secondary ion mass spectrometry and X-ray photoelectron spectroscopy. Here current methods for the high-throughput robotic synthesis of multifunctional polymers as well as their characterization are presented and advantages as well as present limitations are discussed.
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Affiliation(s)
- Stefan Baudis
- Institute of Active Polymers, Helmholtz-Zentrum Hereon, 14513, Teltow, Germany
| | - Marc Behl
- Institute of Active Polymers, Helmholtz-Zentrum Hereon, 14513, Teltow, Germany
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10
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Abstract
Since their development, surface acoustic wave (SAW) devices have attracted much research attention due to their unique functional characteristics, which make them appropriate for the detection of chemical species. The scientific community has directed its efforts toward the development and integration of new materials as sensing elements in SAW sensor technology with a large area of applications, such as for example the detection of volatile organic compounds, warfare chemicals, or food spoilage, just to name a few. Thin films play an important role and are essential as recognition elements in sensor structures due to their wide range of capabilities. In addition, other requisites are the development and application of new thin film deposition techniques as well as the possibility to tune the size and properties of the materials. This review article surveys the latest progress in engineered complex materials, i.e., polymers or functionalized carbonaceous materials, for applications as recognizing elements in miniaturized SAW sensors. It starts with an overview of chemoselective polymers and the synthesis of functionalized carbon nanotubes and graphene, which is followed by surveys of various coating technologies and routes for SAW sensors. Different coating techniques for SAW sensors are highlighted, which provides new approaches and perspective to meet the challenges of sensitive and selective gas sensing.
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11
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Muzyka R, Drewniak S, Pustelny T, Sajdak M, Drewniak Ł. Characterization of Graphite Oxide and Reduced Graphene Oxide Obtained from Different Graphite Precursors and Oxidized by Different Methods Using Raman Spectroscopy Statistical Analysis. MATERIALS 2021; 14:ma14040769. [PMID: 33562112 PMCID: PMC7914510 DOI: 10.3390/ma14040769] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/27/2021] [Accepted: 02/01/2021] [Indexed: 11/16/2022]
Abstract
In this paper, various graphite oxide (GO) and reduced graphene oxide (rGO) preparation methods are analyzed. The obtained materials differed in their properties, including (among others) their oxygen contents. The chemical and structural properties of graphite, graphite oxides, and reduced graphene oxides were previously investigated using Raman spectroscopy (RS), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). In this paper, hierarchical clustering analysis (HCA) and analysis of variance (ANOVA) were used to trace the directions of changes of the selected parameters relative to a preparation method of such oxides. We showed that the oxidation methods affected the physicochemical properties of the final products. The aim of the research was the statistical analysis of the selected properties in order to use this information to design graphene oxide materials with properties relevant for specific applications (i.e., in gas sensors).
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Affiliation(s)
- Roksana Muzyka
- Institute for Chemical Processing of Coal, 1 Zamkowa St., 41-803 Zabrze, Poland; (R.M.); (M.S.)
| | - Sabina Drewniak
- Department of Optoelectronics, Faculty of Electrical Engineering, Silesian University of Technology, 2 Krzywoustego St., 44-100 Gliwice, Poland; (T.P.); (Ł.D.)
- Correspondence:
| | - Tadeusz Pustelny
- Department of Optoelectronics, Faculty of Electrical Engineering, Silesian University of Technology, 2 Krzywoustego St., 44-100 Gliwice, Poland; (T.P.); (Ł.D.)
| | - Marcin Sajdak
- Institute for Chemical Processing of Coal, 1 Zamkowa St., 41-803 Zabrze, Poland; (R.M.); (M.S.)
| | - Łukasz Drewniak
- Department of Optoelectronics, Faculty of Electrical Engineering, Silesian University of Technology, 2 Krzywoustego St., 44-100 Gliwice, Poland; (T.P.); (Ł.D.)
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12
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Michalek L, Krappitz T, Mundsinger K, Walden SL, Barner L, Barner-Kowollik C. Mapping Photochemical Reactivity Profiles on Surfaces. J Am Chem Soc 2020; 142:21651-21655. [PMID: 33337866 DOI: 10.1021/jacs.0c11485] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Herein, we introduce a comprehensive methodology to map the reactivity of photochemical systems on surfaces. The reactivity of photoreactive groups in solution often departs from their corresponding solution absorption spectra. On surfaces, the relationship between the surface absorption spectra and reactivity remains unexplored. Thus, herein, the reactivity of an o-methylbenzaldehyde and a tetrazole, as ligation partners for maleimide functionalized polymers, was investigated when the reactive moieties are tethered to a surface. The ligation reaction of tetrazole functionalized surfaces was found to proceed rapidly leading to high grafting densities, while o-methylbenzaldehyde functionalized substrates required longer irradiation times and resulted in lower surface coverage at the same wavelength (330 nm). Critically, wavelength resolved reactivity profiles were found to closely match the surface absorption spectra, contrary to previously reported red shifts in solution for the same chromophores.
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Affiliation(s)
- Lukas Michalek
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia.,Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia
| | - Tim Krappitz
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia.,Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia
| | - Kai Mundsinger
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia.,Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia
| | - Sarah L Walden
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia.,Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia
| | - Leonie Barner
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia.,Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia
| | - Christopher Barner-Kowollik
- School of Chemistry and Physics, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia.,Centre for Materials Science, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia
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13
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Chen Y, Pötschke P, Pionteck J, Voit B, Qi H. Aerogels Based on Reduced Graphene Oxide/Cellulose Composites: Preparation and Vapour Sensing Abilities. NANOMATERIALS 2020; 10:nano10091729. [PMID: 32878341 PMCID: PMC7560231 DOI: 10.3390/nano10091729] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 11/16/2022]
Abstract
This paper reports on the preparation of cellulose/reduced graphene oxide (rGO) aerogels for use as chemical vapour sensors. Cellulose/rGO composite aerogels were prepared by dissolving cellulose and dispersing graphene oxide (GO) in aqueous NaOH/urea solution, followed by an in-situ reduction of GO to reduced GO (rGO) and lyophilisation. The vapour sensing properties of cellulose/rGO composite aerogels were investigated by measuring the change in electrical resistance during cyclic exposure to vapours with varying solubility parameters, namely water, methanol, ethanol, acetone, toluene, tetrahydrofuran (THF), and chloroform. The increase in resistance of aerogels on exposure to vapours is in the range of 7 to 40% with methanol giving the highest response. The sensing signal increases almost linearly with the vapour concentration, as tested for methanol. The resistance changes are caused by the destruction of the conductive filler network due to a combination of swelling of the cellulose matrix and adsorption of vapour molecules on the filler surfaces. This combined mechanism leads to an increased sensing response with increasing conductive filler content. Overall, fast reaction, good reproducibility, high sensitivity, and good differentiation ability between different vapours characterize the detection behaviour of the aerogels.
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Affiliation(s)
- Yian Chen
- Leibniz-Institut für Polymerforschung Dresden e. V. (IPF), 01069 Dresden, Germany; (Y.C.); (J.P.); (B.V.)
- Organic Chemistry of Polymers, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Petra Pötschke
- Leibniz-Institut für Polymerforschung Dresden e. V. (IPF), 01069 Dresden, Germany; (Y.C.); (J.P.); (B.V.)
- Correspondence: (P.P.); (H.Q.)
| | - Jürgen Pionteck
- Leibniz-Institut für Polymerforschung Dresden e. V. (IPF), 01069 Dresden, Germany; (Y.C.); (J.P.); (B.V.)
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschung Dresden e. V. (IPF), 01069 Dresden, Germany; (Y.C.); (J.P.); (B.V.)
- Organic Chemistry of Polymers, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
| | - Haisong Qi
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
- Guangdong Engineering Research Center for Green Fine Chemicals, South China University of Technology, Guangzhou 510640, China
- Correspondence: (P.P.); (H.Q.)
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Yar M, Hashmi MA, Khan A, Ayub K. Carbon nitride 2-D surface as a highly selective electrochemical sensor for V-series nerve agents. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113357] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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15
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Stewart KME, Scott AJ, Penlidis A. Evaluation of doped and undoped poly (
o
‐anisidine) as sensing materials for a sensor array for volatile organic compounds. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Katherine M. E. Stewart
- Department of Chemical Engineering, Institute for Polymer ResearchUniversity of Waterloo Waterloo Ontario Canada
- Department of Chemistry and Physics, Center for Materials and Manufacturing SciencesTroy University Troy Alabama USA
| | - Alison J. Scott
- Department of Chemical Engineering, Institute for Polymer ResearchUniversity of Waterloo Waterloo Ontario Canada
| | - Alexander Penlidis
- Department of Chemical Engineering, Institute for Polymer ResearchUniversity of Waterloo Waterloo Ontario Canada
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16
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Yar M, Hashmi MA, Ayub K. The C2N surface as a highly selective sensor for the detection of nitrogen iodide from a mixture of NX3 (X = Cl, Br, I) explosives. RSC Adv 2020; 10:31997-32010. [PMID: 35518175 PMCID: PMC9056556 DOI: 10.1039/d0ra04930a] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 08/10/2020] [Indexed: 12/14/2022] Open
Abstract
Explosives are quite toxic and destructive; therefore, it is necessary to not only detect them but also remove them. The adsorption behavior of NX3 analytes (NCl3, NBr3 and NI3) over the microporous C2N surface was evaluated by DFT calculations. The nature of interactions between NX3 and C2N was characterized by adsorption energy, NCI, QTAIM, SAPT0, NBO, EDD and FMO analysis. The interaction energies of NX3 with C2N are in the range of −10.85 to −16.31 kcal mol−1 and follow the order of NCl3@C2N > NBr3@C2N > NI3@C2N, respectively. The 3D isosurfaces and 2D-RGD graph of NCI analysis qualitatively confirmed the existence of halogen bonding interactions among the studied systems. Halogen bonding was quantified by SAPT0 component energy analysis. The SAPT0 results revealed that ΔEdisp (56.75%) is the dominant contributor towards interaction energy, whereas contributions from ΔEelst and ΔEind are 29.41% and 14.34%, respectively. The QTAIM analysis also confirmed the presence of halogen bonding between atoms of NX3 and C2N surface. EDD analysis also validated NCI, QTAIM and NBO analysis. FMO analysis revealed that the adsorption of NI3 on the C2N surface caused the highest change in the EHOMO–LUMO gap (from 5.71 to 4.15 eV), and resulted in high sensitivity and selectivity of the C2N surface towards NI3, as compared to other analytes. It is worth mentioning that in all complexes, a significant difference in the EHOMO–LUMO gap was seen when electronic transitions occurred from the analyte to the C2N surface. Explosives are quite toxic and destructive; therefore, it is necessary to not only detect them but also remove them.![]()
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Affiliation(s)
- Muhammad Yar
- Department of Chemistry
- COMSATS University
- Abbottabad Campus
- Pakistan
| | | | - Khurshid Ayub
- Department of Chemistry
- COMSATS University
- Abbottabad Campus
- Pakistan
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17
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Park MS, Meresa AA, Kwon CM, Kim FS. Selective Wet-Etching of Polymer/Fullerene Blend Films for Surface- and Nanoscale Morphology-Controlled Organic Transistors and Sensitivity-Enhanced Gas Sensors. Polymers (Basel) 2019; 11:polym11101682. [PMID: 31618868 PMCID: PMC6836219 DOI: 10.3390/polym11101682] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 10/03/2019] [Accepted: 10/09/2019] [Indexed: 11/16/2022] Open
Abstract
Surface and nanoscale morphology of thin poly(3-hexylthiophene) (P3HT) films are effectively controlled by blending the polymer with a soluble derivative of fullerene, and then selectively dissolving out the fullerene from the blend films. A combination of the polymer blending with fullerene and a use of diiodooctane (DIO) as a processing additive enhances the molecular ordering of P3HT through nanoscale phase separation, compared to the pristine P3HT. In organic thin-film transistors, such morphological changes in the blend induce a positive effect on the field-effect mobility, as the mobility is ~5-7 times higher than in the pristine P3HT. Simple dipping of the blend films in butyl acetate (BA) causes a selective dissolution of the small molecular component, resulting in a rough surface with nanoscale features of P3HT films. Chemical sensors utilizing these morphological features show an enhanced sensitivity in detection of gas-phase ammonia, water, and ethanol.
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Affiliation(s)
- Min Soo Park
- School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 06974, Korea.
| | - Alem Araya Meresa
- School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 06974, Korea.
| | - Chan-Min Kwon
- School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 06974, Korea.
| | - Felix Sunjoo Kim
- School of Chemical Engineering and Materials Science, Chung-Ang University, Seoul 06974, Korea.
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18
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Singhal S, Patra A. Layer-by-layer versus copolymer: Opto-electrochemical properties of 1,3,5-Tris(N-carbazolyl)benzene and EDOT based polymers. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113296] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Michalek L, Mundsinger K, Barner L, Barner-Kowollik C. Quantifying Solvent Effects on Polymer Surface Grafting. ACS Macro Lett 2019; 8:800-805. [PMID: 35619509 DOI: 10.1021/acsmacrolett.9b00336] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
When grafting polymers onto surfaces, the reaction conditions critically influence the resulting interface properties, including the grafting density and molar mass distribution (MMD) on the surface. Herein, we show theoretically and experimentally that the application of poor solvents is beneficial for the "grafting-to" approach. We demonstrate the effect by grafting poly(methyl methacrylate) chains on silica nanoparticles in different solvents and compare the MMD of the polymer in solution before and after grafting via size exclusion chromatography (SEC). The shorter polymer chains are preferentially grafted onto the surface, leading to a distortion effect between the MMD in solution and on surfaces. The molecular weight distortion effect is significantly higher for ethyl acetate (good solvent quality, difference in Mw surface to solution 14%) than for N,N-dimethylacetamide (poor solvent quality, 6%). The difference in MMD on the surface to the solution significantly affects both the surface properties (e.g. the grafting densities) and their determination.
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Affiliation(s)
- Lukas Michalek
- School of Chemistry, Physics and Mechanical Engineering, Institute for Future Environments, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia
| | - Kai Mundsinger
- School of Chemistry, Physics and Mechanical Engineering, Institute for Future Environments, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia
| | - Leonie Barner
- School of Chemistry, Physics and Mechanical Engineering, Institute for Future Environments, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia
- Institut für Biologische Grenzflächen (IBG), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Christopher Barner-Kowollik
- School of Chemistry, Physics and Mechanical Engineering, Institute for Future Environments, Queensland University of Technology (QUT), 2 George Street, QLD 4000, Brisbane, Australia
- Macromolecular Architectures, Institut für Technische Chemie und Polymerchemie (ITCP), Karlsruhe Institute of Technology (KIT), Engesserstrasse 18, 76128 Karlsruhe, Germany
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20
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Sensing and elimination of the hazardous materials such as Sarin by metal functionalized γ-graphyne surface: A DFT study. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.110929] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Kubo T, Tachibana K, Naito T, Mukai S, Akiyoshi K, Balachandran J, Otsuka K. Magnetic Field Stimuli-Sensitive Drug Release Using a Magnetic Thermal Seed Coated with Thermal-Responsive Molecularly Imprinted Polymer. ACS Biomater Sci Eng 2018; 5:759-767. [DOI: 10.1021/acsbiomaterials.8b01401] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takuya Kubo
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kaname Tachibana
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Toyohiro Naito
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Sadaatsu Mukai
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazunari Akiyoshi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Jeyadevan Balachandran
- Department of Material Science, University of Shiga Prefecture, 2500 Hassaka-cho, Hikone City, 522-8533 Shiga Prefecture, Japan
| | - Koji Otsuka
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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22
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Gao S, Tang X, Langner S, Osvet A, Harreiß C, Barr MKS, Spiecker E, Bachmann J, Brabec CJ, Forberich K. Time-Resolved Analysis of Dielectric Mirrors for Vapor Sensing. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36398-36406. [PMID: 30264555 DOI: 10.1021/acsami.8b11434] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Dielectric mirrors based on bilayers of polystyrene- block-poly(ethylene- ran-butylene)- block-polystyrene (SEBS) and poly(vinyl alcohol) (PVA)-zirconium dioxide (ZrO2) nanocomposites are fabricated for vapor sensing. When exposed to specific solvent vapor, the layers of dielectric mirrors can gradually swell and cause a red-shift of the reflection band. Because PVA solely responds to water and SEBS is sensitive to several different types of organic solvents, the mirrors can respond to a large variety of solvents. The dual-functional hydrophilic ZrO2 nanoparticles are introduced to not only enlarge the refractive index contrast but also increase the permeability. Time-resolved measurements show that mirrors with nanoparticles have a significantly faster response than those without nanoparticles. Moreover, the dependence on relative humidity is studied for representative solvents, and several types of solvents are selected to show the dependence on the solvent-polymer interaction parameters at typical relative humidity, which allows one to predict the responsivity and selectivity of the sensors.
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Affiliation(s)
- Shuai Gao
- Institute of Materials for Electronics and Energy Technology (i-MEET), Department of Materials Science and Engineering , Friedrich-Alexander University Erlangen-Nürnberg , Martensstrasse 7 , 91058 Erlangen , Germany
- Erlangen Graduate School in Advanced Optical Technologies (SAOT) , Paul-Gordan-Strasse 6 , 91052 Erlangen , Germany
| | - Xiaofeng Tang
- Institute of Materials for Electronics and Energy Technology (i-MEET), Department of Materials Science and Engineering , Friedrich-Alexander University Erlangen-Nürnberg , Martensstrasse 7 , 91058 Erlangen , Germany
- Erlangen Graduate School in Advanced Optical Technologies (SAOT) , Paul-Gordan-Strasse 6 , 91052 Erlangen , Germany
| | - Stefan Langner
- Institute of Materials for Electronics and Energy Technology (i-MEET), Department of Materials Science and Engineering , Friedrich-Alexander University Erlangen-Nürnberg , Martensstrasse 7 , 91058 Erlangen , Germany
| | - Andres Osvet
- Institute of Materials for Electronics and Energy Technology (i-MEET), Department of Materials Science and Engineering , Friedrich-Alexander University Erlangen-Nürnberg , Martensstrasse 7 , 91058 Erlangen , Germany
| | - Christina Harreiß
- Institute of Micro- and Nanostructure Research (IMN) , Friedrich-Alexander University Erlangen-Nürnberg , Cauerstrasse 6 , 91058 Erlangen , Germany
| | - Maïssa K S Barr
- Chair of Chemistry of Thin Film Materials, Department of Chemistry and Pharmacy , Friedrich-Alexander University Erlangen-Nürnberg , Cauerstrasse 4 , 91058 Erlangen , Germany
| | - Erdmann Spiecker
- Institute of Micro- and Nanostructure Research (IMN) , Friedrich-Alexander University Erlangen-Nürnberg , Cauerstrasse 6 , 91058 Erlangen , Germany
| | - Julien Bachmann
- Chair of Chemistry of Thin Film Materials, Department of Chemistry and Pharmacy , Friedrich-Alexander University Erlangen-Nürnberg , Cauerstrasse 4 , 91058 Erlangen , Germany
- Institute of Chemistry , Saint-Petersburg State University , Universitetskii pr. 26, Petergof , 198504 Saint Petersburg , Russia
| | - Christoph J Brabec
- Institute of Materials for Electronics and Energy Technology (i-MEET), Department of Materials Science and Engineering , Friedrich-Alexander University Erlangen-Nürnberg , Martensstrasse 7 , 91058 Erlangen , Germany
- Bavarian Center for Applied Energy Research (ZAE Bayern) , Immerwahrstrasse 2 , 91058 Erlangen , Germany
| | - Karen Forberich
- Institute of Materials for Electronics and Energy Technology (i-MEET), Department of Materials Science and Engineering , Friedrich-Alexander University Erlangen-Nürnberg , Martensstrasse 7 , 91058 Erlangen , Germany
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23
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Szilvási T, Bao N, Nayani K, Yu H, Rai P, Twieg RJ, Mavrikakis M, Abbott NL. Redox-Triggered Orientational Responses of Liquid Crystals to Chlorine Gas. Angew Chem Int Ed Engl 2018; 57:9665-9669. [PMID: 29931784 DOI: 10.1002/anie.201803194] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/26/2018] [Indexed: 12/15/2022]
Abstract
Surface-supported liquid crystals (LCs) that exhibit orientational and thus optical responses upon exposure to ppb concentrations of Cl2 gas are reported. Computations identified Mn cations as candidate surface binding sites that undergo redox-triggered changes in the strength of binding to nitrogen-based LCs upon exposure to Cl2 gas. Guided by these predictions, μm-thick films of nitrile- or pyridine-containing LCs were prepared on surfaces decorated with Mn2+ binding sites as perchlorate salts. Following exposure to Cl2 , formation of Mn4+ (in the form of MnO2 microparticles) was confirmed and an accompanying change in the orientation and optical appearance of the supported LC films was measured. In unoptimized systems, the LC orientational transitions provided the sensitivity and response times needed for monitoring human exposure to Cl2 gas. The response was also selective to Cl2 over other oxidizing agents such as air or NO2 and other chemical targets such as organophosphonates.
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Affiliation(s)
- Tibor Szilvási
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI, 53706-1607, USA
| | - Nanqi Bao
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI, 53706-1607, USA
| | - Karthik Nayani
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI, 53706-1607, USA
| | - Huaizhe Yu
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI, 53706-1607, USA
| | - Prabin Rai
- Department of Chemistry and Biochemistry, Kent State University, 1175 Risman Drive, Kent, OH, 44242, USA
| | - Robert J Twieg
- Department of Chemistry and Biochemistry, Kent State University, 1175 Risman Drive, Kent, OH, 44242, USA
| | - Manos Mavrikakis
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI, 53706-1607, USA
| | - Nicholas L Abbott
- Department of Chemical and Biological Engineering, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, WI, 53706-1607, USA
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24
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Szilvási T, Bao N, Nayani K, Yu H, Rai P, Twieg RJ, Mavrikakis M, Abbott NL. Redox‐Triggered Orientational Responses of Liquid Crystals to Chlorine Gas. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803194] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tibor Szilvási
- Department of Chemical and Biological Engineering University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706-1607 USA
| | - Nanqi Bao
- Department of Chemical and Biological Engineering University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706-1607 USA
| | - Karthik Nayani
- Department of Chemical and Biological Engineering University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706-1607 USA
| | - Huaizhe Yu
- Department of Chemical and Biological Engineering University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706-1607 USA
| | - Prabin Rai
- Department of Chemistry and Biochemistry Kent State University 1175 Risman Drive Kent OH 44242 USA
| | - Robert J. Twieg
- Department of Chemistry and Biochemistry Kent State University 1175 Risman Drive Kent OH 44242 USA
| | - Manos Mavrikakis
- Department of Chemical and Biological Engineering University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706-1607 USA
| | - Nicholas L. Abbott
- Department of Chemical and Biological Engineering University of Wisconsin-Madison 1415 Engineering Drive Madison WI 53706-1607 USA
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25
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Michalek L, Barner L, Barner-Kowollik C. Polymer on Top: Current Limits and Future Perspectives of Quantitatively Evaluating Surface Grafting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706321. [PMID: 29512237 DOI: 10.1002/adma.201706321] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/01/2017] [Indexed: 05/15/2023]
Abstract
Well-defined polymer strands covalently tethered onto solid substrates determine the properties of the resulting functional interface. Herein, the current approaches to determine quantitative grafting densities are assessed. Based on a brief introduction into the key theories describing polymer brush regimes, a user's guide is provided to estimating maximum chain coverage and-importantly-examine the most frequently employed approaches for determining grafting densities, i.e., dry thickness measurements, gravimetric assessment, and swelling experiments. An estimation of the reliability of these determination methods is provided via carefully evaluating their assumptions and assessing the stability of the underpinning equations. A practical access guide for comparatively and quantitatively evaluating the reliability of a given approach is thus provided, enabling the field to critically judge experimentally determined grafting densities and to avoid the reporting of grafting densities that fall outside the physically realistic parameter space. The assessment is concluded with a perspective on the development of advanced approaches for determination of grafting density, in particular, on single-chain methodologies.
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Affiliation(s)
- Lukas Michalek
- School of Chemistry, Physics and Mechanical Engineering, Institute for Future Environments, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
| | - Leonie Barner
- School of Chemistry, Physics and Mechanical Engineering, Institute for Future Environments, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
- Institute for Biological Interfaces, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Christopher Barner-Kowollik
- School of Chemistry, Physics and Mechanical Engineering, Institute for Future Environments, Queensland University of Technology (QUT), 2 George Street, Brisbane, QLD, 4000, Australia
- Macromolecular Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76131, Karlsruhe, Germany
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26
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Synthesis and spectroscopic properties of a new fluorescent acridine hyperbranched polymer: Applications to acid sensing and as antimicrobial agent. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.03.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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27
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Ibanez JG, Rincón ME, Gutierrez-Granados S, Chahma M, Jaramillo-Quintero OA, Frontana-Uribe BA. Conducting Polymers in the Fields of Energy, Environmental Remediation, and Chemical–Chiral Sensors. Chem Rev 2018; 118:4731-4816. [DOI: 10.1021/acs.chemrev.7b00482] [Citation(s) in RCA: 264] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jorge G. Ibanez
- Departamento de Ingeniería y Ciencias Químicas, Universidad Iberoamericana, Prolongación Paseo de la Reforma 880, 01219 Ciudad de México, Mexico
| | - Marina. E. Rincón
- Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Apartado Postal 34, 62580, Temixco, MOR, Mexico
| | - Silvia Gutierrez-Granados
- Departamento de Química, DCNyE, Campus Guanajuato, Universidad de Guanajuato, Cerro de la Venada S/N, Pueblito
de Rocha, 36080 Guanajuato, GTO Mexico
| | - M’hamed Chahma
- Laurentian University, Department of Chemistry & Biochemistry, Sudbury, ON P3E2C6, Canada
| | - Oscar A. Jaramillo-Quintero
- CONACYT-Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Apartado Postal 34, 62580 Temixco, MOR, Mexico
| | - Bernardo A. Frontana-Uribe
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Km 14.5 Carretera Toluca-Ixtlahuaca, Toluca 50200, Estado de México Mexico
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito
exterior Ciudad Universitaria, 04510 Ciudad de México, Mexico
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28
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Guo Q, Wu D, You J. Oxidative Direct Arylation Polymerization Using Oxygen as the Sole Oxidant: Facile, Green Access to Bithiazole-Based Polymers. CHEMSUSCHEM 2016; 9:2765-2768. [PMID: 27553577 DOI: 10.1002/cssc.201600827] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Indexed: 06/06/2023]
Abstract
The most appealing oxidant, molecular oxygen, is employed for the first time as the sole oxidant in the transition metal-catalyzed oxidative direct arylation polymerization (C-H/C-H-type DArP), which eliminates by-product formation of stoichiometric metal salts except for water . Compared to conventional approaches, other than the avoidance of an end-capping procedure, the current protocol is remarkably advanced in the aspect of eco-friendliness, step- and cost-economy, and, of special significance, the purity of polymer products. As illustrative examples, six 5,5'-bithiazole-based polymers are synthesized using this new method, demonstrating higher number-average molecular weight (Mn up to 33 700) in better yields (up to 93 %) through only one step. The evolution of C-H/C-H-type DArP from heavy metal salts to O2 alone as the oxidant could solve the problem of metal residues in polymers, which is considered harmful to the performance of devices.
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Affiliation(s)
- Qiang Guo
- Key Laboratory of Green Chemistry and Technology of the Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China
- College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu, 610225, China
| | - Di Wu
- Key Laboratory of Green Chemistry and Technology of the Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of the Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
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29
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Potyrailo RA. Multivariable Sensors for Ubiquitous Monitoring of Gases in the Era of Internet of Things and Industrial Internet. Chem Rev 2016; 116:11877-11923. [DOI: 10.1021/acs.chemrev.6b00187] [Citation(s) in RCA: 224] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Yang Y, Wang D, Wu Y, Tian X, Qin H, Hu L, Zhang T, Ni W, Jin J. 2D Confined-Space Assisted Growth of Molecular-Level-Thick Polypyrrole Sheets with High Conductivity and Transparency. Macromol Rapid Commun 2016; 37:590-6. [PMID: 26833631 DOI: 10.1002/marc.201500698] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 12/30/2015] [Indexed: 11/12/2022]
Abstract
Herein, the use of a 2D soft template system composed of hundred-nanometer-thick water/ethanol mixed layers sandwiched by lamellar bilayer membranes of a self-assembled amphiphilic molecule to produce ultrathin polyprrole (PPy) with a uniform thickness as thin as 3.8 nm and with large dimensions (>2 μm(2)) is presented. The obtained PPy nanosheets exhibit regioregularity with ordered chain alignment where the polymer chains in the nanosheets produced are well aligned with a clear interchain spacing as confirmed by small-angle X-ray scattering measurement. The molecular-level-thick PPy nanosheets exhibit extremely high conductivity up to 1330 S m(-1), thanks to the ordered alignment of polymer chains in the nanosheets, and a high transparency in both the visible region (transmittance >99%) and near-infrared region (transmittance >93%).
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Affiliation(s)
- Yang Yang
- Department of Chemistry, Shanghai University, Shanghai, 200444, P. R. China.,Nano-Bionics Division and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Dong Wang
- Nano-Bionics Division and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Yongjin Wu
- Nano-Bionics Division and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China.,Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, P. R. China
| | - Xiaorui Tian
- Nano-Bionics Division and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Haili Qin
- Dr. H. Qin, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, P. R. China
| | - Liang Hu
- Nano-Bionics Division and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Ting Zhang
- Nano-Bionics Division and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Weihai Ni
- Nano-Bionics Division and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, P. R. China
| | - Jian Jin
- Department of Chemistry, Shanghai University, Shanghai, 200444, P. R. China
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31
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Sayago I, Matatagui D, Fernández MJ, Fontecha JL, Jurewicz I, Garriga R, Muñoz E. Graphene oxide as sensitive layer in Love-wave surface acoustic wave sensors for the detection of chemical warfare agent simulants. Talanta 2016; 148:393-400. [DOI: 10.1016/j.talanta.2015.10.069] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 10/14/2015] [Accepted: 10/24/2015] [Indexed: 12/18/2022]
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32
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Abstract
Notable aspects of the chemistry of polyether complexes of group 13 and 14 elements are reviewed.
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Affiliation(s)
- Ala'aeddeen Swidan
- Department of Chemistry and Biochemistry
- University of Windsor
- Windsor
- Canada
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33
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Potyrailo RA, Bonam RK, Hartley JG, Starkey TA, Vukusic P, Vasudev M, Bunning T, Naik RR, Tang Z, Palacios MA, Larsen M, Le Tarte LA, Grande JC, Zhong S, Deng T. Towards outperforming conventional sensor arrays with fabricated individual photonic vapour sensors inspired by Morpho butterflies. Nat Commun 2015; 6:7959. [PMID: 26324320 PMCID: PMC4569698 DOI: 10.1038/ncomms8959] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Accepted: 07/01/2015] [Indexed: 12/18/2022] Open
Abstract
Combining vapour sensors into arrays is an accepted compromise to mitigate poor selectivity of conventional sensors. Here we show individual nanofabricated sensors that not only selectively detect separate vapours in pristine conditions but also quantify these vapours in mixtures, and when blended with a variable moisture background. Our sensor design is inspired by the iridescent nanostructure and gradient surface chemistry of Morpho butterflies and involves physical and chemical design criteria. The physical design involves optical interference and diffraction on the fabricated periodic nanostructures and uses optical loss in the nanostructure to enhance the spectral diversity of reflectance. The chemical design uses spatially controlled nanostructure functionalization. Thus, while quantitation of analytes in the presence of variable backgrounds is challenging for most sensor arrays, we achieve this goal using individual multivariable sensors. These colorimetric sensors can be tuned for numerous vapour sensing scenarios in confined areas or as individual nodes for distributed monitoring. Individual vapour sensors often suffer from poor selectivity, which hinders their broad applicability. Here, Potyrailo et al. fabricate individual sensors inspired by the Morpho butterfly capable of selectively detecting vapours in mixtures and with a variable moisture background.
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Affiliation(s)
| | - Ravi K Bonam
- College of Nanoscale Science and Engineering, State University of New York, Albany, New York 12203, USA
| | - John G Hartley
- College of Nanoscale Science and Engineering, State University of New York, Albany, New York 12203, USA
| | | | - Peter Vukusic
- School of Physics, University of Exeter, Exeter, EX4 4QL, UK
| | - Milana Vasudev
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433, USA.,Department of Bioengineering, University of Massachusetts Dartmouth, Dartmouth, MA 02747, USA
| | - Timothy Bunning
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433, USA
| | - Rajesh R Naik
- Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson AFB, Ohio 45433, USA
| | - Zhexiong Tang
- General Electric Global Research Center, Niskayuna, New York 12309, USA
| | - Manuel A Palacios
- General Electric Global Research Center, Niskayuna, New York 12309, USA
| | - Michael Larsen
- General Electric Global Research Center, Niskayuna, New York 12309, USA
| | - Laurie A Le Tarte
- General Electric Global Research Center, Niskayuna, New York 12309, USA
| | - James C Grande
- General Electric Global Research Center, Niskayuna, New York 12309, USA
| | - Sheng Zhong
- General Electric Global Research Center, Niskayuna, New York 12309, USA
| | - Tao Deng
- General Electric Global Research Center, Niskayuna, New York 12309, USA.,State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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Pan Y, Mu N, Shao S, Yang L, Wang W, Xie X, He S. Selective Surface Acoustic Wave-Based Organophosphorus Sensor Employing a Host-Guest Self-Assembly Monolayer of β-Cyclodextrin Derivative. SENSORS 2015; 15:17916-25. [PMID: 26213930 PMCID: PMC4570299 DOI: 10.3390/s150817916] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 07/02/2015] [Accepted: 07/20/2015] [Indexed: 11/29/2022]
Abstract
Self-assembly and molecular imprinting technologies are very attractive technologies for the development of artificial recognition systems and provide chemical recognition based on need and not happenstance. In this paper, we employed a β-cyclodextrin derivative surface acoustic wave (SAW) chemical sensor for detecting the chemical warfare agents (CWAs) sarin (O-Isoprophyl methylphosphonofluoridate, GB). Using sarin acid (isoprophyl hydrogen methylphosphonate) as an imprinting template, mono[6-deoxy-6-[(mercaptodecamethylene)thio]]-β-cyclodextrin was prepared by self-assembled method on one of the SAW oscillators. After templates’ removal, a sensitive and selective molecular imprinting (MIP) monolayer for GB was prepared. Electrochemical impedance spectroscopy and atomic force microscope (AFM) were used to characterize this film. Comparing the detection results to GB by MIP film and non-MIP film, the molecularly imprinting effect was also proved. The resulting SAW sensor could detect sarin as low as 0.10 mg/m3 at room temperature and the frequency shift was about 300 Hz. The response frequency increased linearly with increasing sarin concentration in the range of 0.7 mg/m3~3.0 mg/m3. When sarin was detected under different temperatures, the SAW sensor exhibited outstanding sensitivity and reliability.
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Affiliation(s)
- Yong Pan
- State Key Laboratory of NBC Protection for Civilian, Yangfang, Changping District, Beijing 102205, China.
| | - Ning Mu
- State Key Laboratory of NBC Protection for Civilian, Yangfang, Changping District, Beijing 102205, China.
| | - Shengyu Shao
- State Key Laboratory of NBC Protection for Civilian, Yangfang, Changping District, Beijing 102205, China.
| | - Liu Yang
- State Key Laboratory of NBC Protection for Civilian, Yangfang, Changping District, Beijing 102205, China.
| | - Wen Wang
- Institute of Acoustic, Chinese Academy of Science, Zhongguancun Street, Haidian District, Beijing 100080, China.
| | - Xiao Xie
- Institute of Acoustic, Chinese Academy of Science, Zhongguancun Street, Haidian District, Beijing 100080, China.
| | - Shitang He
- Institute of Acoustic, Chinese Academy of Science, Zhongguancun Street, Haidian District, Beijing 100080, China.
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35
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Potyrailo RA, Murray AJ, Nagraj N, Pris AD, Ashe JM, Todorovic M. Towards Maintenance-Free Biosensors for Hundreds of Bind/Release Cycles. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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36
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Chang G, Yang L, Liu S, Lin R, You J. Rational design of a fluorescent poly(N-aryleneindole ether sulfone) switch by cation–π interactions. Polym Chem 2015. [DOI: 10.1039/c4py01472c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A fluorescence emission on–off switch is achieved by adjusting the assembly of poly(N-aryleneindole ether sulfone) (PESIN) and pyridine hydrochloride via the cation–π interactions.
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Affiliation(s)
- Guanjun Chang
- State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Li Yang
- State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials
- School of Material Science and Engineering
- Southwest University of Science and Technology
- Mianyang 621010
- China
| | - Shenye Liu
- Research Center of Laser Fusion
- China Academy of Engineering Physics
- Mianyang 621900
- China
| | - Runxiong Lin
- Engineering Research Center of High Performance Polymer and Molding Technology
- Ministry of Education
- Qingdao University of Science and Technology
- Qingdao 266042
- China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
- China
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37
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Potyrailo RA, Murray AJ, Nagraj N, Pris AD, Ashe JM, Todorovic M. Towards maintenance-free biosensors for hundreds of bind/release cycles. Angew Chem Int Ed Engl 2014; 54:2174-8. [PMID: 25476587 DOI: 10.1002/anie.201411094] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Indexed: 12/12/2022]
Abstract
A single aptamer bioreceptor layer was formed using a common streptavidin-biotin immobilization strategy and employed for 100-365 bind/release cycles. Chemically induced aptamer unfolding and release of its bound target was accomplished using alkaline solutions with high salt concentrations or deionized (DI) water. The use of DI water scavenged from the ambient atmosphere represents a first step towards maintenance-free biosensors that do not require the storage of liquid reagents. The aptamer binding affinity was determined by surface plasmon resonance and found to be almost constant over 100-365 bind/release cycles with a variation of less than 5% relative standard deviation. This reversible operation of biosensors based on immobilized aptamers without storage of liquid reagents introduces a conceptually new perspective in biosensing. Such new biosensing capability will be important for distributed sensor networks, sensors in resource-limited settings, and wearable sensor applications.
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38
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Whitcombe MJ, Kirsch N, Nicholls IA. Molecular imprinting science and technology: a survey of the literature for the years 2004-2011. J Mol Recognit 2014; 27:297-401. [PMID: 24700625 DOI: 10.1002/jmr.2347] [Citation(s) in RCA: 275] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/28/2013] [Accepted: 12/01/2013] [Indexed: 12/11/2022]
Abstract
Herein, we present a survey of the literature covering the development of molecular imprinting science and technology over the years 2004-2011. In total, 3779 references to the original papers, reviews, edited volumes and monographs from this period are included, along with recently identified uncited materials from prior to 2004, which were omitted in the first instalment of this series covering the years 1930-2003. In the presentation of the assembled references, a section presenting reviews and monographs covering the area is followed by sections describing fundamental aspects of molecular imprinting including the development of novel polymer formats. Thereafter, literature describing efforts to apply these polymeric materials to a range of application areas is presented. Current trends and areas of rapid development are discussed.
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39
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Demonstration of higher colour response with ambient refractive index in Papilio blumei as compared to Morpho rhetenor. Sci Rep 2014; 4:5591. [PMID: 24998707 PMCID: PMC4083278 DOI: 10.1038/srep05591] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Accepted: 06/17/2014] [Indexed: 11/26/2022] Open
Abstract
Multilayer structures are known to produce vivid iridescent colouration in many butterflies. Morpho butterflies are well known for their high reflectance, which appears to remain high over a wide range of viewing angles. Thus these butterflies have served as the inspiration for sensing materials. Using microscopic images and videos, we visually demonstrate that the colour response with ambient refractive index of Papilio blumei is better than that of Morpho rhetenor. This result was also verified using measurements of the reflectance for different viewing angles. The finite-difference time-domain method was then used to simulate the microscopic pictures and reflections. Finally, the relationships between the structure, ambient refractive index, reflection and viewing angle are discussed in detail.
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40
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Affiliation(s)
- Hyungwoo Kim
- Department of Materials Science and Engineering; College of Engineering; Seoul National University; Seoul 151-744 Korea
| | - Youngdo Kim
- Department of Materials Science and Engineering; College of Engineering; Seoul National University; Seoul 151-744 Korea
| | - Ji Young Chang
- Department of Materials Science and Engineering; College of Engineering; Seoul National University; Seoul 151-744 Korea
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41
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Park JW, Park SJ, Kwon OS, Lee C, Jang J. Polypyrrole Nanotube Embedded Reduced Graphene Oxide Transducer for Field-Effect Transistor-Type H2O2 Biosensor. Anal Chem 2014; 86:1822-8. [DOI: 10.1021/ac403770x] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jin Wook Park
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
| | - Seon Joo Park
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
| | - Oh Seok Kwon
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
- Department
of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Choonghyeon Lee
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
| | - Jyongsik Jang
- School
of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
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42
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Michinobu T, Li Y, Hyakutake T. Polymeric ion sensors with multiple detection modes achieved by a new type of click chemistry reaction. Phys Chem Chem Phys 2013. [DOI: 10.1039/c2cp43203j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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43
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Liu S, Zhou D, Guo T. Construction of a novel macroporous imprinted biosensor based on quartz crystal microbalance for ribonuclease A detection. Biosens Bioelectron 2012. [PMID: 23208087 DOI: 10.1016/j.bios.2012.11.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A novel quartz crystal microbalance (QCM) biosensor with high selectivity and sensitivity has been developed for ribonuclease A determination. Macroporous protein imprinted films have been fabricated on the surface of QCM electrode using 2,2,3,4,4,4-hexafluorobutyl methacrylate (HFBMA) as the main matrix monomer, N-methacryloyl-histidine (MAH) as the functional monomer, and trimethylolpropane trimethacrylate (TRIM) as the cross-linker. The imprinted special surface area and the quantity of the imprinted sites were increased by the formation of macropores that were generated by employing calcium carbonate nanoparticles as the porogen. The selectivity factor was improved obviously for the fluoromonomer containing system, especially in dilute protein solution, which gets benefit from the reducing of the nonspecific adsorption of proteins. Furthermore, MAH can not only play the role as the functional monomer, but also improve the hydrophilicity of surface of the imprinted film, which makes for the adsorption of proteins. At last, the rigid skeleton structure made the films durable in the recycled tests.
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Affiliation(s)
- Shuai Liu
- Key Laboratory of Functional Polymer Materials-Nankai University, Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Weijin Road, No. 94, Tianjin 300071, China
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44
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Synthesis and Characterization of Reversible Chemosensory Polymers: Modulation of Sensitivity through the Attachment of Novel Imidazole Pendants. Chemistry 2012; 18:16061-72. [DOI: 10.1002/chem.201201437] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 09/05/2012] [Indexed: 11/07/2022]
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45
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Estrada LA, Liu DY, Salazar DH, Dyer AL, Reynolds JR. Poly[Bis-EDOT-Isoindigo]: An Electroactive Polymer Applied to Electrochemical Supercapacitors. Macromolecules 2012. [DOI: 10.1021/ma3016129] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Leandro A. Estrada
- School of Chemistry
and Biochemistry,
School of Materials Science and Engineering, Center for Organic Photonics
and Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332,
United States
- The George
and Josephine Butler
Polymer Chemistry Laboratories, Department of Chemistry, Center for
Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - David Y. Liu
- The George
and Josephine Butler
Polymer Chemistry Laboratories, Department of Chemistry, Center for
Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Danielle H. Salazar
- The George
and Josephine Butler
Polymer Chemistry Laboratories, Department of Chemistry, Center for
Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Aubrey L. Dyer
- School of Chemistry
and Biochemistry,
School of Materials Science and Engineering, Center for Organic Photonics
and Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332,
United States
- The George
and Josephine Butler
Polymer Chemistry Laboratories, Department of Chemistry, Center for
Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - John R. Reynolds
- School of Chemistry
and Biochemistry,
School of Materials Science and Engineering, Center for Organic Photonics
and Electronics, Georgia Institute of Technology, Atlanta, Georgia 30332,
United States
- The George
and Josephine Butler
Polymer Chemistry Laboratories, Department of Chemistry, Center for
Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
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46
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Potyrailo RA, Nagraj N, Surman C, Boudries H, Lai H, Slocik JM, Kelley-Loughnane N, Naik RR. Wireless sensors and sensor networks for homeland security applications. Trends Analyt Chem 2012; 40:133-145. [PMID: 23175590 DOI: 10.1016/j.trac.2012.07.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
New sensor technologies for homeland security applications must meet the key requirements of sensitivity to detect agents below risk levels, selectivity to provide minimal false-alarm rates, and response speed to operate in high throughput environments, such as airports, sea ports, and other public places. Chemical detection using existing sensor systems is facing a major challenge of selectivity. In this review, we provide a brief summary of chemical threats of homeland security importance; focus in detail on modern concepts in chemical sensing; examine the origins of the most significant unmet needs in existing chemical sensors; and, analyze opportunities, specific requirements, and challenges for wireless chemical sensors and wireless sensor networks (WSNs). We further review a new approach for selective chemical sensing that involves the combination of a sensing material that has different response mechanisms to different species of interest, with a transducer that has a multi-variable signal-transduction ability. This new selective chemical-sensing approach was realized using an attractive ubiquitous platform of battery-free passive radio-frequency identification (RFID) tags adapted for chemical sensing. We illustrate the performance of RFID sensors developed in measurements of toxic industrial materials, humidity-independent detection of toxic vapors, and detection of chemical-agent simulants, explosives, and strong oxidizers.
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47
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Kwon OS, Ahn SR, Park SJ, Song HS, Lee SH, Lee JS, Hong JY, Lee JS, You SA, Yoon H, Park TH, Jang J. Ultrasensitive and selective recognition of peptide hormone using close-packed arrays of hPTHR-conjugated polymer nanoparticles. ACS NANO 2012; 6:5549-5558. [PMID: 22650249 DOI: 10.1021/nn301482x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Recognition of diverse hormones in the human body is a highly significant challenge because numerous diseases can be affected by hormonal imbalances. However, the methodologies reported to date for detecting hormones have exhibited limited performance. Therefore, development of innovative methods is still a major concern in hormone-sensing applications. In this study, we report an immobilization-based approach to facilitate formation of close-packed arrays of carboxylated polypyrrole nanoparticles (CPPyNPs) and their integration with human parathyroid hormone receptor (hPTHR), which is a B-class family of G-protein-coupled receptors (GPCRs). Our devices enabled use of an electrically controllable liquid-ion-gated field-effect transistor by using the surrounding phosphate-buffered saline solution (pH 7.4) as electrolyte solution. Field-induced signals from the peptide hormone sensors were observed and provided highly sensitive and selective recognition of target molecules at unprecedentedly low concentrations (ca. 48 fM). This hormone sensor also showed long-term stability and excellent selectivity in fetal bovine serum. Importantly, the hormone receptor attached on the surface of CPPyNPs enabled GPCR functional studies; synergistic effects corresponding to increased hPTH peptide length were monitored. These results demonstrate that close-packed CPPyNP arrays are a promising approach for high-performance biosensing devices.
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Affiliation(s)
- Oh Seok Kwon
- World Class University Program of Chemical Convergence for Energy & Environment, School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
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48
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Kwon OS, Park SJ, Lee JS, Park E, Kim T, Park HW, You SA, Yoon H, Jang J. Multidimensional conducting polymer nanotubes for ultrasensitive chemical nerve agent sensing. NANO LETTERS 2012; 12:2797-802. [PMID: 22545863 DOI: 10.1021/nl204587t] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Tailoring the morphology of materials in the nanometer regime is vital to realizing enhanced device performance. Here, we demonstrate flexible nerve agent sensors, based on hydroxylated poly(3,4-ethylenedioxythiophene) (PEDOT) nanotubes (HPNTs) with surface substructures such as nanonodules (NNs) and nanorods (NRs). The surface substructures can be grown on a nanofiber surface by controlling critical synthetic conditions during vapor deposition polymerization (VDP) on the polymer nanotemplate, leading to the formation of multidimensional conducting polymer nanostructures. Hydroxyl groups are found to interact with the nerve agents. Representatively, the sensing response of dimethyl methylphosphonate (DMMP) as a simulant for sarin is highly sensitive and reversible from the aligned nanotubes. The minimum detection limit is as low as 10 ppt. Additionally, the sensor had excellent mechanical bendability and durability.
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Affiliation(s)
- Oh Seok Kwon
- World Class University program of Chemical Convergence for Energy & Environment, School of Chemical and Biological Engineering, Seoul National University, Seoul 151-742, Korea
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49
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Guo Z, Zhu W, Tian H. Dicyanomethylene-4H-pyran chromophores for OLED emitters, logic gates and optical chemosensors. Chem Commun (Camb) 2012; 48:6073-84. [PMID: 22576048 DOI: 10.1039/c2cc31581e] [Citation(s) in RCA: 230] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Dicyanomethylene-4H-pyran (DCM) chromophores are typical donor-π-acceptor (D-π-A) type chromophores with a broad absorption band resulting from an ultra-fast internal charge-transfer (ICT) process. In 1989, Tang et al. firstly introduced a DCM derivative as a highly fluorescent dopant in organic electroluminescent diodes (OLEDs). Integration of ICT chromophore-receptor systems based on DCM chromophores with ion-induced shifts in absorption or emission is a convenient method to perform the logic expression for molecular logic gates. In recent years, various DCM-type derivatives have been explored due to their excellent optical-electronic properties and diverse structural modification. This feature article provides an insight into how the structural modification of DCM chromophores can be utilized for OLED emitters, logic gates and optical chemosensors. In addition, the aggregation-induced-emission (AIE) of DCM derivatives for further optical applications was also introduced.
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Affiliation(s)
- Zhiqian Guo
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, PR China
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50
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Potyrailo RA, Leach AM, Surman CM. Multisize CdSe nanocrystal/polymer nanocomposites for selective vapor detection identified from high-throughput screening experimentation. ACS COMBINATORIAL SCIENCE 2012; 14:170-8. [PMID: 22270701 DOI: 10.1021/co200112s] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have implemented high-throughput spectroscopic screening tools for the investigation of vapor-selectivity of CdSe semiconductor nanocrystals of different size (2.8- and 5.6-nm diameter) upon their incorporation in a library of rationally selected polymeric matrices. This library of resulting sensing materials was exposed to polar and nonpolar vapors in air. Each of the sensing materials demonstrated its own photoluminescence vapor-response patterns. Two criteria for the evaluation of vapor responses of the library of sensing materials included the diversity and the magnitude of sensing responses. We have found several polymer matrices that simultaneously meet these criteria. Our new sensing materials based on polymer-embedded semiconductor nanocrystal reagents of different size promise to overcome photobleaching and short shelf life limitations of traditional fluorescent organic reagent-based sensing materials.
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Affiliation(s)
- Radislav A. Potyrailo
- General Electric Company, Global
Research Center, Niskayuna, New York 12309, United States
| | - Andrew M. Leach
- General Electric Company, Global
Research Center, Niskayuna, New York 12309, United States
| | - Cheryl M. Surman
- General Electric Company, Global
Research Center, Niskayuna, New York 12309, United States
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