1
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Lai CF, Lin CP, Lee YC. Enhancement of Light Efficiency of Deep-Ultraviolet Light-Emitting Diodes by Encapsulation with a 3D Photonic Crystal Reflecting Layer. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:983. [PMID: 38869608 PMCID: PMC11173468 DOI: 10.3390/nano14110983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/28/2024] [Accepted: 06/04/2024] [Indexed: 06/14/2024]
Abstract
Recently, UVC LEDs, which emit deep ultraviolet light, have found extensive applications across various fields. This study demonstrates the design and implementation of thin films of three-dimensional photonic crystals (3D PhCs) as reflectors to enhance the light output power (LOP) of UVC LEDs. The 3D PhC reflectors were prepared using the self-assembly of silica nanospheres on a UVC LED lead frame substrate via the evaporation-induced method (side) and the gravitational sedimentation method (bottom), respectively. These PhCs with the (111) crystallographic plane were deposited on the side wall and bottom of the UVC LED lead frame, acting as functional materials to reflect UVC light. The LOP of UVC LEDs with 3D PhC reflectors at a driving current of 100 mA reached 19.6 mW. This represented a 30% enhancement compared to commercial UVC LEDs with Au-plated reflectors, due to the UVC light reflection by the photonic band gaps of 3D PhCs in the (111) crystallographic plane. Furthermore, after aging tests at 60 °C and 60% relative humidity for 1000 h, the relative LOP of UVC LEDs with 3D PhC reflectors decreased by 7%, which is better than that of commercial UVC LEDs. Thus, this study offers potential methods for enhancing the light output efficiency of commercial UVC light-emitting devices.
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Affiliation(s)
- Chun-Feng Lai
- Department of Photonics, Feng Chia University, Taichung 407, Taiwan
| | - Chun-Peng Lin
- Lextar Electronics Corp., Hsinchu Science Park, Hsinchu 30075, Taiwan; (C.-P.L.); (Y.-C.L.)
| | - Yu-Chun Lee
- Lextar Electronics Corp., Hsinchu Science Park, Hsinchu 30075, Taiwan; (C.-P.L.); (Y.-C.L.)
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2
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Lu Y, Zhang X, Zhao L, Liu H, Yan M, Zhang X, Mochizuki K, Yang S. Metal-organic framework template-guided electrochemical lithography on substrates for SERS sensing applications. Nat Commun 2023; 14:5860. [PMID: 37730799 PMCID: PMC10511444 DOI: 10.1038/s41467-023-41563-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 09/06/2023] [Indexed: 09/22/2023] Open
Abstract
The templating method holds great promise for fabricating surface nanopatterns. To enhance the manufacturing capabilities of complex surface nanopatterns, it is important to explore new modes of the templates beyond their conventional masking and molding modes. Here, we employed the metal-organic framework (MOF) microparticles assembled monolayer films as templates for metal electrodeposition and revealed a previously unidentified guiding growth mode enabling the precise growth of metallic films exclusively underneath the MOF microparticles. The guiding growth mode was induced by the fast ion transportation within the nanochannels of the MOF templates. The MOF template could be repeatedly used, allowing for the creation of identical metallic surface nanopatterns for multiple times on different substrates. The MOF template-guided electrochemical growth mode provided a robust route towards cost-effective fabrication of complex metallic surface nanopatterns with promising applications in metamaterials, plasmonics, and surface-enhanced Raman spectroscopy (SERS) sensing fields.
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Affiliation(s)
- Youyou Lu
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Xuan Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Liyan Zhao
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Hong Liu
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Mi Yan
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- Baotou Research Institute of Rare Earths, Baotou, 014030, China
| | - Xiaochen Zhang
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Kenji Mochizuki
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, P. R. China.
| | - Shikuan Yang
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China.
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
- Baotou Research Institute of Rare Earths, Baotou, 014030, China.
- State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou, 310027, China.
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3
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Ma B, Zhang M, Li Z, Peng J, Chen C. Recent Advance of Transition Metal-Free Catalyzed Suzuki-Type Cross Coupling Reaction. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202208008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
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4
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Fan Z, Liao F, Ji Y, Liu Y, Huang H, Wang D, Yin K, Yang H, Ma M, Zhu W, Wang M, Kang Z, Li Y, Shao M, Hu Z, Shao Q. Coupling of nanocrystal hexagonal array and two-dimensional metastable substrate boosts H 2-production. Nat Commun 2022; 13:5828. [PMID: 36192414 PMCID: PMC9530234 DOI: 10.1038/s41467-022-33512-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 09/21/2022] [Indexed: 11/09/2022] Open
Abstract
Designing well-ordered nanocrystal arrays with subnanometre distances can provide promising materials for future nanoscale applications. However, the fabrication of aligned arrays with controllable accuracy in the subnanometre range with conventional lithography, template or self-assembly strategies faces many challenges. Here, we report a two-dimensional layered metastable oxide, trigonal phase rhodium oxide (space group, P-3m1 (164)), which provides a platform from which to construct well-ordered face-centred cubic rhodium nanocrystal arrays in a hexagonal pattern with an intersurface distance of only 0.5 nm. The coupling of the well-ordered rhodium array and metastable substrate in this catalyst triggers and improves hydrogen spillover, enhancing the acidic hydrogen evolution for H2 production, which is essential for various clean energy-related devices. The catalyst achieves a low overpotential of only 9.8 mV at a current density of −10 mA cm−2, a low Tafel slope of 24.0 mV dec−1, and high stability under a high potential (vs. RHE) of −0.4 V (current density of ~750 mA cm−2). This work highlights the important role of metastable materials in the design of advanced materials to achieve high-performance catalysis. The construction of well-ordered nanoarrays, particularly invoking metastable material phases, remains a challenge. Here, authors prepared a well-ordered, rhodium nanoarray on two-dimensional, metastable rhodium oxide to enhance hydrogen evolution electrocatalysis.
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Affiliation(s)
- Zhenglong Fan
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China.,College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Fan Liao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Yujin Ji
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Yang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Hui Huang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Dan Wang
- College of Energy, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Kui Yin
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Haiwei Yang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Mengjie Ma
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Wenxiang Zhu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Meng Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Zhenhui Kang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China. .,Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, 999078, Macau SAR, China.
| | - Youyong Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China
| | - Mingwang Shao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, Jiangsu, China.
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of Solids, Nothnitzer Strasse 40, Dresden, 01187, Germany.
| | - Qi Shao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, Jiangsu, China.
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5
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Wang G, Wang L, Cheng Z, Chen D, Zhang X, Wang T, Wang Q, Fu Y. High-performance plasmonic lab-on-fiber sensing system constructed by universal polymer assisted transfer technique. NANOTECHNOLOGY 2021; 33:095502. [PMID: 34814122 DOI: 10.1088/1361-6528/ac3c7d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
Plasmonic lab-on-fiber (LOF) system has become an emerging sensing platform for the realization of miniaturized and portable plasmonic sensors. Herein, a facile and efficient polymer assisted transfer technique was reported for the preparation of plasmonic LOF systems. The proposed plasmonic LOF system was constructed through transferring plasmonic arrays to the end surface of optical fibers using polylactic acid as the sacrificial layer. The morphology of the transferred plasmonic arrays maintains excellent consistency with the original arrays. Importantly, the as-prepared plasmonic LOF system also possesses outstanding sensing performance in refractive index sensing and quantitative label-free biosensing applications. Additionally, the proposed polymer assisted transfer technique shows broad universality for various plasmonic arrays. Together with the above features, it is believed that the polymer assisted transfer technique will show great potential for the application of future plasmonic LOF systems.
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Affiliation(s)
- Guangrong Wang
- College of Sciences, Northeastern University, Shenyang 110819, People's Republic of China
| | - Lei Wang
- College of Information Science and Engineering, Northeastern University, Shenyang 110819, People's Republic of China
| | - Zhan Cheng
- College of Information Science and Engineering, Northeastern University, Shenyang 110819, People's Republic of China
| | - Dan Chen
- College of Sciences, Northeastern University, Shenyang 110819, People's Republic of China
| | - Xuemin Zhang
- College of Sciences, Northeastern University, Shenyang 110819, People's Republic of China
| | - Tieqiang Wang
- College of Sciences, Northeastern University, Shenyang 110819, People's Republic of China
| | - Qi Wang
- College of Information Science and Engineering, Northeastern University, Shenyang 110819, People's Republic of China
| | - Yu Fu
- College of Sciences, Northeastern University, Shenyang 110819, People's Republic of China
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6
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Chen J, Zhou Y, Fu Y, Pan J, Mohammed OF, Bakr OM. Oriented Halide Perovskite Nanostructures and Thin Films for Optoelectronics. Chem Rev 2021; 121:12112-12180. [PMID: 34251192 DOI: 10.1021/acs.chemrev.1c00181] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Oriented semiconductor nanostructures and thin films exhibit many advantageous properties, such as directional exciton transport, efficient charge transfer and separation, and optical anisotropy, and hence these nanostructures are highly promising for use in optoelectronics and photonics. The controlled growth of these structures can facilitate device integration to improve optoelectronic performance and benefit in-depth fundamental studies of the physical properties of these materials. Halide perovskites have emerged as a new family of promising and cost-effective semiconductor materials for next-generation high-power conversion efficiency photovoltaics and for versatile high-performance optoelectronics, such as light-emitting diodes, lasers, photodetectors, and high-energy radiation imaging and detectors. In this Review, we summarize the advances in the fabrication of halide perovskite nanostructures and thin films with controlled dimensionality and crystallographic orientation, along with their applications and performance characteristics in optoelectronics. We examine the growth methods, mechanisms, and fabrication strategies for several technologically relevant structures, including nanowires, nanoplates, nanostructure arrays, single-crystal thin films, and highly oriented thin films. We highlight and discuss the advantageous photophysical properties and remarkable performance characteristics of oriented nanostructures and thin films for optoelectronics. Finally, we survey the remaining challenges and provide a perspective regarding the opportunities for further progress in this field.
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Affiliation(s)
- Jie Chen
- Division of Physical Science and Engineering (PSE) and KAUST Catalysis Center (KCC), Advanced Membranes and Porous Materials Center (AMPMC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.,School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yang Zhou
- Division of Physical Science and Engineering (PSE) and KAUST Catalysis Center (KCC), Advanced Membranes and Porous Materials Center (AMPMC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Yongping Fu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jun Pan
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China
| | - Omar F Mohammed
- Division of Physical Science and Engineering (PSE) and KAUST Catalysis Center (KCC), Advanced Membranes and Porous Materials Center (AMPMC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Osman M Bakr
- Division of Physical Science and Engineering (PSE) and KAUST Catalysis Center (KCC), Advanced Membranes and Porous Materials Center (AMPMC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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7
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Cai Z, Li Z, Ravaine S, He M, Song Y, Yin Y, Zheng H, Teng J, Zhang A. From colloidal particles to photonic crystals: advances in self-assembly and their emerging applications. Chem Soc Rev 2021; 50:5898-5951. [PMID: 34027954 DOI: 10.1039/d0cs00706d] [Citation(s) in RCA: 136] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Over the last three decades, photonic crystals (PhCs) have attracted intense interests thanks to their broad potential applications in optics and photonics. Generally, these structures can be fabricated via either "top-down" lithographic or "bottom-up" self-assembly approaches. The self-assembly approaches have attracted particular attention due to their low cost, simple fabrication processes, relative convenience of scaling up, and the ease of creating complex structures with nanometer precision. The self-assembled colloidal crystals (CCs), which are good candidates for PhCs, have offered unprecedented opportunities for photonics, optics, optoelectronics, sensing, energy harvesting, environmental remediation, pigments, and many other applications. The creation of high-quality CCs and their mass fabrication over large areas are the critical limiting factors for real-world applications. This paper reviews the state-of-the-art techniques in the self-assembly of colloidal particles for the fabrication of large-area high-quality CCs and CCs with unique symmetries. The first part of this review summarizes the types of defects commonly encountered in the fabrication process and their effects on the optical properties of the resultant CCs. Next, the mechanisms of the formation of cracks/defects are discussed, and a range of versatile fabrication methods to create large-area crack/defect-free two-dimensional and three-dimensional CCs are described. Meanwhile, we also shed light on both the advantages and limitations of these advanced approaches developed to fabricate high-quality CCs. The self-assembly routes and achievements in the fabrication of CCs with the ability to open a complete photonic bandgap, such as cubic diamond and pyrochlore structure CCs, are discussed as well. Then emerging applications of large-area high-quality CCs and unique photonic structures enabled by the advanced self-assembly methods are illustrated. At the end of this review, we outlook the future approaches in the fabrication of perfect CCs and highlight their novel real-world applications.
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Affiliation(s)
- Zhongyu Cai
- Research Institute for Frontier Science, Beijing Advanced Innovation Center for Biomedical Engineering, School of Space and Environment, Beihang University, Beijing 100191, China. and Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117576, Singapore and Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Zhiwei Li
- Department of Chemistry, University of California, Riverside, CA 92521, USA
| | - Serge Ravaine
- CNRS, Univ. Bordeaux, CRPP, UMR 5031, F-33600 Pessac, France
| | - Mingxin He
- Department of Physics, Center for Soft Matter Research, New York University, New York, NY 10003, USA
| | - Yanlin Song
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, CA 92521, USA
| | - Hanbin Zheng
- CNRS, Univ. Bordeaux, CRPP, UMR 5031, F-33600 Pessac, France
| | - Jinghua Teng
- Institute of Materials Research and Engineering, Agency for Science, Technology, and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore 138634, Singapore.
| | - Ao Zhang
- Research Institute for Frontier Science, Beijing Advanced Innovation Center for Biomedical Engineering, School of Space and Environment, Beihang University, Beijing 100191, China.
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8
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Zhang M, Adkins M, Wang Z. Recent Progress on Semiconductor-Interface Facing Clinical Biosensing. SENSORS 2021; 21:s21103467. [PMID: 34065696 PMCID: PMC8156696 DOI: 10.3390/s21103467] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/04/2021] [Accepted: 04/06/2021] [Indexed: 01/17/2023]
Abstract
Semiconductor (SC)-based field-effect transistors (FETs) have been demonstrated as amazing enhancer gadgets due to their delicate interface towards surface adsorption. This leads to their application as sensors and biosensors. Additionally, the semiconductor material has enormous recognizable fixation extends, high affectability, high consistency for solid detecting, and the ability to coordinate with other microfluidic gatherings. This review focused on current progress on the semiconductor-interfaced FET biosensor through the fundamental interface structure of sensor design, including inorganic semiconductor/aqueous interface, photoelectrochemical interface, nano-optical interface, and metal-assisted interface. The works that also point to a further advancement for the trademark properties mentioned have been reviewed here. The emergence of research on the organic semiconductor interface, integrated biosensors with Complementary metal–oxide–semiconductor (CMOS)-compatible, metal-organic frameworks, has accelerated the practical application of biosensors. Through a solid request for research along with sensor application, it will have the option to move forward the innovative sensor with the extraordinary semiconductor interface structure.
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Affiliation(s)
- Mingrui Zhang
- School of Engineering, University of Manchester, Manchester M13 9PL, UK;
| | - Mitchell Adkins
- Chemistry Department, Oakland University, Rochester, MI 48309, USA;
| | - Zhe Wang
- Chemistry Department, Oakland University, Rochester, MI 48309, USA;
- Correspondence: ; Tel.: +1-248-370-2086
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9
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Jeong E, Woo H, Moon Y, Lee DY, Jung M, Lee YS, Bae JS. Self-Cleaning Polyester Fabric Prepared with TiOF 2 and Hexadecyltrimethoxysilane. Polymers (Basel) 2021; 13:387. [PMID: 33530596 PMCID: PMC7865654 DOI: 10.3390/polym13030387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 01/19/2021] [Accepted: 01/23/2021] [Indexed: 11/16/2022] Open
Abstract
In this study, self-cleaning polyester (PET) fabrics were prepared using TiOF2 and hexadecyltrimethoxysilane(HDS) treatment. TiOF2 was synthesized via direct fluorination of a precursor TiO2 at various reaction temperatures. The prepared PET fabrics had superior photocatalytic self-cleaning properties compared with anatase TiO2/HDS-treated PET fabrics under UV and sunlight with 98% decomposition of methylene blue. TiOF2/HDS-treated PET fabrics also had superior superhydrophobic self-cleaning properties compared with anatase TiO2/HDS-treated PET fabrics with a 161° water contact angle and 6° roll-off angle. After the self-cleaning tests of the non-dyed TiOF2/HDS-treated PET fabrics, we prepared dyed TiOF2/HDS-treated PET fabrics to test practical aspects of the treatment method. These PET fabrics were barely stained by tomato ketchup; even when stained, they could be self-cleaned within 4 h. These results suggest that practical self-cleaning PET fabrics with superhydrophobicity and photocatalytic degradation could be prepared using TiOF2/HDS-treatment.
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Affiliation(s)
- Euigyung Jeong
- Department of Textile System Engineering, Kyungpook National University, Daegu 41566, Korea; (E.J.); (H.W.); (Y.M.)
| | - Heeju Woo
- Department of Textile System Engineering, Kyungpook National University, Daegu 41566, Korea; (E.J.); (H.W.); (Y.M.)
| | - Yejin Moon
- Department of Textile System Engineering, Kyungpook National University, Daegu 41566, Korea; (E.J.); (H.W.); (Y.M.)
| | - Dong Yun Lee
- Department of Polymer Science and Engineering, Kyungpook National University, Daegu 41566, Korea;
| | - Minjung Jung
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea; (M.J.); (Y.-S.L.)
| | - Young-Seak Lee
- Department of Chemical Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Korea; (M.J.); (Y.-S.L.)
| | - Jin-Seok Bae
- Department of Textile System Engineering, Kyungpook National University, Daegu 41566, Korea; (E.J.); (H.W.); (Y.M.)
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10
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Yang TY, Yu L, Akiyama Y, Takarada T, Maeda M. DNA-Programmed Bimodal 2D Assembly of Differently Sized Nanoparticles via Folding of Precursory Circular Chains. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5588-5595. [PMID: 32378903 DOI: 10.1021/acs.langmuir.0c00765] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Gold nanoparticle (AuNP) assemblies in two-dimensions (2D) exhibit collective physical/chemical properties that are useful for various devices. However, technical issues still impede the efficient ordering of differently sized AuNPs on solid supports while avoiding phase separation. This paper describes a method to construct binary 2D assemblies by folding precursory circular chains composed of small and large AuNPs. The structural change is caused by a spontaneous, non-cross-linking assembly of fully matched double-stranded DNA-modified AuNPs (dsDNA-AuNPs) at a high ionic strength. Since larger dsDNA-AuNPs have a lower critical coagulation concentration of the supporting electrolyte, the spontaneous assembly of large AuNPs precedes that of small AuNPs in the precursory chain during evaporation. Transmission electron microscopy reveals that alternate-type AuNP chains are folded into a binary 2D structure in a mixed mode, whereas block-type chains are transformed into a binary 2D structure in a core-shell mode. The methodology could potentially be harnessed for the fabrication of binary AuNP arrays for various devices.
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Affiliation(s)
- Tzung-Ying Yang
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwano-ha, Kashiwa, Chiba 277-8561, Japan
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama351-0198, Japan
| | - Li Yu
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwano-ha, Kashiwa, Chiba 277-8561, Japan
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama351-0198, Japan
| | - Yoshitsugu Akiyama
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama351-0198, Japan
- Faculty of Industrial Science and Technology, Tokyo University of Science, 102-1 Tomino, Oshamambe-cho, Yamakoshi-gun, Hokkaido 049-3514, Japan
| | - Tohru Takarada
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama351-0198, Japan
| | - Mizuo Maeda
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwano-ha, Kashiwa, Chiba 277-8561, Japan
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama351-0198, Japan
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11
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Cao X, Li C, Lu Y, Zhang B, Wu Y, Liu Q, Wu J, Teng J, Yan W, Huang Y. Catalysis of Au nano-pyramids formed across the surfaces of ordered Au nano-ring arrays. J Catal 2019. [DOI: 10.1016/j.jcat.2019.07.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Liu Z, Tang P, Liu X, Yi Z, Liu G, Wang Y, Liu M. Truncated titanium/semiconductor cones for wide-band solar absorbers. NANOTECHNOLOGY 2019; 30:305203. [PMID: 30884474 DOI: 10.1088/1361-6528/ab109d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A truncated Ti and Si cones metasurface has been proposed for wide-band solar absorber (WSA), which produced a high average absorption of 94.7% in the spectral region from 500 to 4000 nm. A maximal enhancement factor of 166.0% was achieved by the WSA in comparison with the absorption of Ti/Si cylinder resonators based absorber. Under the standard solar radiance, a high full-spectrum solar absorption efficiency of 96.1% was obtained for the WSA in the energy range from 0.28 to 4.0 eV. The spectral bandwidth with absorption above 90% is up to 3.402 μm, which shows an enhancement factor of 165.0% than that of the WSA intercalated by the SiO2. Other semiconductors such as Ge, GaAs have been utilized to form the WSA, which also maintained the near-unity absorption in the wide-band spectrum. The plasmonic resonant response of the Ti material and the strong electromagnetic coupling capability of the Si resonator, and the plasmonic near-field coupling by the adjacent truncated cones were the main contributions for the impressive absorption behaviors. These findings pave a new way for achieving full-spectrum solar absorber via combining the Ti material and semiconductors, which could open potential approaches for active optoelectronic devices such as photo-detectors, hot-electron related modulators, and solar cells, etc.
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Affiliation(s)
- Zhengqi Liu
- Jiangxi Key Laboratory of Nanomaterials and Sensors, Provincial Key Laboratory of Optoelectronic and Telecommunication, College of Physics Communication and Electronics, Jiangxi Normal University, Nanchang 330022, People's Republic of China
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13
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Dai Z, Liang T, Lee JH. Gas sensors using ordered macroporous oxide nanostructures. NANOSCALE ADVANCES 2019; 1:1626-1639. [PMID: 36134246 PMCID: PMC9417045 DOI: 10.1039/c8na00303c] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 02/02/2019] [Indexed: 05/23/2023]
Abstract
Detection and monitoring of harmful and toxic gases have gained increased interest in relation to worldwide environmental issues. Semiconducting metal oxide gas sensors have been considered promising for the facile remote detection of gases and vapors over the past decades. However, their sensing performance is still a challenge to meet the demands for practical applications where excellent sensitivity, selectivity, stability, and response/recovery rate are imperative. Therefore, sensing materials with novel architectures and fabrication processes have been pursued with a flurry of research activity. In particular, the preparation of ordered macroporous metal oxide nanostructures is regarded as an intriguing candidate wherein ordered aperture sizes in the range from 50 nm to 1.5 μm can increase the chemical diffusion rate and considerably strengthen the performance stability and repeatability. This review highlights the recent advances in the fabrication of ordered macroporous nanostructures with different dimensions and compositions, discusses the sensing behavior evolution governed by structural layouts, hierarchy, doping, and heterojunctions, as well as considering their general principles and future prospects. This would provide a clear scale for others to tune the sensing performance of porous materials in terms of specific components and structural designs.
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Affiliation(s)
- Zhengfei Dai
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University Xi'an Shaanxi 710049 People's Republic of China
| | - Tingting Liang
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University Xi'an Shaanxi 710049 People's Republic of China
| | - Jong-Heun Lee
- Department of Materials Science and Engineering, Korea University Seoul 02841 Republic of Korea
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14
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Fabrication, Characterization, and Application of Large-Scale Uniformly Hybrid Nanoparticle-Enhanced Raman Spectroscopy Substrates. MICROMACHINES 2019; 10:mi10050282. [PMID: 31035552 PMCID: PMC6562888 DOI: 10.3390/mi10050282] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/18/2019] [Accepted: 04/22/2019] [Indexed: 12/13/2022]
Abstract
Surface-enhanced Raman spectroscopy (SERS) substrates with high sensitivity and reproducibility are highly desirable for high precision and even molecular-level detection applications. Here, large-scale uniformly hybrid nanoparticle-enhanced Raman spectroscopy (NERS) substrates with high reproducibility and controllability were developed. Using oxygen plasma treatment, large-area and uniformly rough polystyrene sphere (URPS) arrays in conjunction with 20 nm Au films (AuURPS) were fabricated for SERS substrates. Au nanoparticles and clusters covered the surface of the URPS arrays, and this increased the Raman signal. In the detection of malachite green (MG), the fabricated NERS substrates have high reproducibility and sensitivity. The enhancement factor (EF) of Au nanoparticles and clusters was simulated by finite-difference time-domain (FDTD) simulations and the EF was more than 104. The measured EF of our developed substrate was more than 108 with a relative standard deviation as low as 6.64%–13.84% over 15 points on the substrate. The minimum limit for the MG molecules reached 50 ng/mL. Moreover, the Raman signal had a good linear relationship with the logarithmic concentration of MG, as it ranged from 50 ng/mL to 5 μg/mL. The NERS substrates proposed in this work may serve as a promising detection scheme in chemical and biological fields.
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15
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Gu P, Hu T, Wu H, Yan Z, Chen J, Dong W, Chen Z, Zhan P, Xia X, Wang Z. Highly tunable multiple narrow emissions of dyed dielectric-metal core-shell resonators: towards efficient fluorescent labels. NANOTECHNOLOGY 2019; 30:065302. [PMID: 30523886 DOI: 10.1088/1361-6528/aaf157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report a potential efficient fluorescent label based on the dyed dielectric-metal core-shell resonators (DMCSRs). By utilizing the near-field coupling between the dyes and the multipolar sharp cavity plasmon resonances, the dyed DMCSRs with diameter of 1.02 μm are demonstrated to be capable of supporting multiple spontaneous emission peaks with the linewidths as narrow as ∼ 10 nm in visible range, and these reshaped fluorescent emissions are insensitive to the surrounding dielectric environment. Furthermore, these multiple narrow emission peaks show a precise tunability on the spectrum by simply separating a nanometric dielectric layer between the dielectric core and the metallic shell, which may provide an attractive spectral multiplexing strategy in the fields of cell biology and medical sciences.
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Affiliation(s)
- Ping Gu
- School of Physics and National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
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16
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Zhao M, Zhao J, Qin L, Jia H, Liu S. Synthesis of Ta/Ni microcavity array film for highly sensitive uric acid detection. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2018.12.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Ordered Array of Metal Particles on Semishell Separated with Ultrathin Oxide: Fabrication and SERS Properties. COATINGS 2018. [DOI: 10.3390/coatings9010020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Metal particles in gap cavities provide an interesting system to achieve hybrid local surface plasmon modes for local field enhancement. Here, we demonstrate a relatively simple method to fabricate Ag nanoparticles positioned on Ag semishells separated by a thin (~5 nm) dielectric layer. The obtained structure can provide strong local electric field enhancement for surface-enhanced Raman scattering (SERS). The fabrication of the ordered array structure was realized by nanosphere self-assembly, atomic layer deposition, and metal thin-film dewetting. Numerical simulation proved that, compared to the conventional metal semishell arrays, the additional Ag particles introduce extra hot spots particularly in the valley regions between adjacent Ag semishells. As a result, the SERS enhancement factor of the metal semishell-based plasmonic structure could be further improved by an order of magnitude. The developed novel plasmonic structure also shows good potential for application in plasmon-enhanced solar water-splitting devices.
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18
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Ouyang Y, Zhao J, Qiu R, Hu S, Zhang Y, Wang P. Bioinspired superhydrophobic and oil-infused surface: Which is the better choice to prevent marine biofouling? Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.09.060] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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19
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Li Z, Lin J, Liu Z, Feng S, Liu Y, Wang C, Liu Y, Yang S. Durable Broadband and Omnidirectional Ultra-antireflective Surfaces. ACS APPLIED MATERIALS & INTERFACES 2018; 10:40180-40188. [PMID: 30378430 DOI: 10.1021/acsami.8b15537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Light reflection from surfaces is ubiquitous in nature. Diverse optoelectronic devices need durable, omnidirectional, and transparent ultra-antireflective surfaces. Here, we engineered antireflective transparent surfaces composed of silica nanocaps through a simple thermal treatment of a silica-coated monolayer colloidal crystal template. The relationship between the structure and the antireflective performance of the silica nanocaps was systematically studied both experimentally and numerically. On the basis of the understanding of the structure-antireflection relationships, ultra-antireflection coatings with a transmittance of ∼98.75 ± 0.15% in the visible wavelength range were prepared by fabricating two differently sized silica nanocaps. More importantly, the antireflection of the coatings formed by two differently sized nanocaps demonstrated poor dependence on the angle of the incident light (i.e., omnidirectionality). The reflection is <2.5% even at an incident angle of 60°. The prepared ultra-antireflective silica nanocap coatings outperform state-of-the-art transparent antireflective coatings regarding the antireflection performance, the wavelength range, and the omnidirectionality. The silica nanoshells were welded together with the underlying fused silica. Therefore, they can sustain common mechanical friction and scratching, demonstrating extraordinary mechanical durability as verified by sand abrasion tests. Further, the silanized silica nanocaps turned out to be hydrophobic with an outstanding self-cleaning performance without prominently influencing the transmittance. The durable and omnidirectional ultra-antireflective transparent silica nanocaps will have promising applications in solar energy conversion and storage, displays, optical lenses, and a wide range of optoelectronic devices.
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Affiliation(s)
- Zhigang Li
- Department of Physics and Electronic Engineering , Taizhou University , Taizhou 318000 , China
| | - Jianjian Lin
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , China
| | - Zhengqi Liu
- Institute of Optoelectronic Materials and Technology, College of Physics and Communication Electronics , Jiangxi Normal University , Nanchang 330022 , China
| | - Shangshen Feng
- Department of Physics and Electronic Engineering , Taizhou University , Taizhou 318000 , China
| | - Yanping Liu
- Department of Physics and Electronic Engineering , Taizhou University , Taizhou 318000 , China
| | - Caifen Wang
- Department of Physics and Electronic Engineering , Taizhou University , Taizhou 318000 , China
| | - Yue Liu
- Insititute for Composites Science Innovation, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , China
| | - Shikuan Yang
- Insititute for Composites Science Innovation, School of Materials Science and Engineering , Zhejiang University , Hangzhou 310027 , China
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20
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Xu S, Lei Y. Template-Assisted Fabrication of Nanostructured Arrays for Sensing Applications. Chempluschem 2018; 83:741-755. [DOI: 10.1002/cplu.201800127] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 05/08/2018] [Indexed: 01/07/2023]
Affiliation(s)
- Shipu Xu
- Institute of Physics & IMN MacroNano (ZIK); Ilmenau University of Technology; Unterpoerlitzer Strasse 38 98693 Ilmenau Germany
| | - Yong Lei
- Institute of Physics & IMN MacroNano (ZIK); Ilmenau University of Technology; Unterpoerlitzer Strasse 38 98693 Ilmenau Germany
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21
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Brassat K, Kool D, Bürger J, Lindner JKN. Hierarchical nanopores formed by block copolymer lithography on the surfaces of different materials pre-patterned by nanosphere lithography. NANOSCALE 2018; 10:10005-10017. [PMID: 29774901 DOI: 10.1039/c8nr01397g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Bottom-up patterning techniques allow for the creation of surfaces with ordered arrays of nanoscale features on large areas. Two bottom-up techniques suitable for the formation of regular nanopatterns on different length scales are nanosphere lithography (NSL) and block copolymer (BCP) lithography. In this paper it is shown that NSL and BCP lithography can be combined to easily design hierarchically nanopatterned surfaces of different materials. Nanosphere lithography is used for the pre-patterning of surfaces with antidots, i.e. hexagonally arranged cylindrical holes in thin films of Au, Pt and TiO2 on SiO2, providing a periodic chemical and topographical contrast on the surface suitable for templating in subsequent BCP lithography. PS-b-PMMA BCP is used in the second self-assembly step to form hexagonally arranged nanopores with sub-20 nm diameter within the antidots upon microphase separation. To achieve this the microphase separation of BCP on planar surfaces is studied, too, and it is demonstrated for the first time that vertical BCP nanopores can be formed on TiO2, Au and Pt films without using any neutralization layers. To explain this the influence of surface energy, polarity and roughness on the microphase separation is investigated and discussed along with the wetting state of BCP on NSL-pre-patterned surfaces. The presented novel route for the creation of advanced hierarchical nanopatterns is easily applicable on large-area surfaces of different materials. This flexibility makes it suitable for a broad range of applications, from the morphological design of biocompatible surfaces for life science to complex pre-patterns for nanoparticle placement in semiconductor technology.
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Affiliation(s)
- Katharina Brassat
- Dept. of Physics, Paderborn University, Warburgerstr. 100, 33098 Paderborn, Germany.
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22
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Peksa V, Lebrušková P, Šípová H, Štěpánek J, Bok J, Homola J, Procházka M. Testing gold nanostructures fabricated by hole-mask colloidal lithography as potential substrates for SERS sensors: sensitivity, signal variability, and the aspect of adsorbate deposition. Phys Chem Chem Phys 2018; 18:19613-20. [PMID: 27381363 DOI: 10.1039/c6cp02752k] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Gold nanoplasmonic substrates with high sensitivity and spectral reproducibility are key components of molecular sensors based on surface-enhanced Raman scattering (SERS). In this work, we used a confocal Raman microscope and several types of gold nanostructures (arrays of nanodiscs, nanocones and nanodisc dimers) prepared by hole-mask colloidal lithography (HCL) to determine the sources of variability in SERS measurements. We demonstrate that significant variations in the SERS signal can originate from the method of deposition of analyte molecules onto a SERS substrate. While the method based on incubation of SERS substrates in a solution containing the analyte yields a SERS signal with low variability, the droplet deposition method produces a SERS signal with rather high variability. Variability of the SERS signal of a single nanoparticle was determined from the statistical analysis of the SERS signal in short-range Raman maps recorded using different sized laser spots produced by means of different objectives. We show that the number of nanoparticles located within the laser spot can be a source of substantial SERS signal variability, especially for high-magnification objectives. We demonstrate that SERS substrates prepared by HCL exhibit high SERS enhancement and excellent homogeneity (about 20% relative standard deviation from short-range maps). The nanocone arrays are shown to provide the highest SERS enhancement, the lowest relative level of fluorescence background, and also slightly better homogeneity when compared with arrays of nanodisc dimers or single nanodiscs.
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Affiliation(s)
- Vlastimil Peksa
- Charles University in Prague, Faculty of Mathematics and Physics, Institute of Physics, Ke Karlovu 5, 12 16, Prague 2, Czech Republic.
| | - Petra Lebrušková
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Prague, Chaberská 57, Prague 8, Czech Republic
| | - Hana Šípová
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Prague, Chaberská 57, Prague 8, Czech Republic
| | - Josef Štěpánek
- Charles University in Prague, Faculty of Mathematics and Physics, Institute of Physics, Ke Karlovu 5, 12 16, Prague 2, Czech Republic.
| | - Jiří Bok
- Charles University in Prague, Faculty of Mathematics and Physics, Institute of Physics, Ke Karlovu 5, 12 16, Prague 2, Czech Republic.
| | - Jiří Homola
- Institute of Photonics and Electronics, Academy of Sciences of the Czech Republic, Prague, Chaberská 57, Prague 8, Czech Republic
| | - Marek Procházka
- Charles University in Prague, Faculty of Mathematics and Physics, Institute of Physics, Ke Karlovu 5, 12 16, Prague 2, Czech Republic.
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23
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Li Y, Yan Q, Koshizaki N. Unconventional lithography for patterned nanomaterials. NANOTECHNOLOGY 2017; 28:500201. [PMID: 29148429 DOI: 10.1088/1361-6528/aa98a2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- Yue Li
- Institute of Solid State Physics, CAS, People's Republic of China
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24
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Chu Z, Liu Y, Jin W. Recent progress in Prussian blue films: Methods used to control regular nanostructures for electrochemical biosensing applications. Biosens Bioelectron 2017; 96:17-25. [DOI: 10.1016/j.bios.2017.04.036] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 04/07/2017] [Accepted: 04/25/2017] [Indexed: 02/05/2023]
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25
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Lotito V, Zambelli T. Approaches to self-assembly of colloidal monolayers: A guide for nanotechnologists. Adv Colloid Interface Sci 2017; 246:217-274. [PMID: 28669390 DOI: 10.1016/j.cis.2017.04.003] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 04/04/2017] [Accepted: 04/05/2017] [Indexed: 01/08/2023]
Abstract
Self-assembly of quasi-spherical colloidal particles in two-dimensional (2D) arrangements is essential for a wide range of applications from optoelectronics to surface engineering, from chemical and biological sensing to light harvesting and environmental remediation. Several self-assembly approaches have flourished throughout the years, with specific features in terms of complexity of the implementation, sensitivity to process parameters, characteristics of the final colloidal assembly. Selecting the proper method for a given application amidst the vast literature in this field can be a challenging task. In this review, we present an extensive classification and comparison of the different techniques adopted for 2D self-assembly in order to provide useful guidelines for scientists approaching this field. After an overview of the main applications of 2D colloidal assemblies, we describe the main mechanisms underlying their formation and introduce the mathematical tools commonly used to analyse their final morphology. Subsequently, we examine in detail each class of self-assembly techniques, with an explanation of the physical processes intervening in crystallization and a thorough investigation of the technical peculiarities of the different practical implementations. We point out the specific characteristics of the set-ups and apparatuses developed for self-assembly in terms of complexity, requirements, reproducibility, robustness, sensitivity to process parameters and morphology of the final colloidal pattern. Such an analysis will help the reader to individuate more easily the approach more suitable for a given application and will draw the attention towards the importance of the details of each implementation for the final results.
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26
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Liebig F, Sarhan RM, Sander M, Koopman W, Schuetz R, Bargheer M, Koetz J. Deposition of Gold Nanotriangles in Large Scale Close-Packed Monolayers for X-ray-Based Temperature Calibration and SERS Monitoring of Plasmon-Driven Catalytic Reactions. ACS APPLIED MATERIALS & INTERFACES 2017; 9:20247-20253. [PMID: 28535039 DOI: 10.1021/acsami.7b07231] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Anisotropic plasmonic particles such as gold nanotriangles have extraordinary structural, optical, and physicochemical properties. For many applications in different fields, it is essential to prepare them in a chemically and physically stable, structurally well-defined manner, e.g., as large and uniform coverage on a substrate. We present a direct method for the large scale close-packed monolayer formation of edge-to-edge ordered, ultrathin crystalline gold nanotriangles on Si wafers or quartz glass via the transfer of these asymmetric particles to the air-liquid interface after adding ethanol-toluene mixtures without any subsequent surface functionalization. X-ray diffraction monitoring of the close-packed, large area monolayer with a mosaicity of less than 0.1° allows for calibrating the temperature of the particles during continuous laser heating. This is important for characterizing the microscopic temperature of the metal particles in the plasmon-driven dimerization process of 4-nitrothiophenol (4-NTP) into 4,4'-dimercaptoazobenzene (DMAB), monitored in real time by surface-enhanced Raman scattering (SERS). The gold nanotriangles can act as a source of hot electrons and initiate the dimerization process.
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Affiliation(s)
| | - Radwan M Sarhan
- Chemistry Department, Faculty of Science, Cairo University , Cairo 12613, Egypt
- School of Analytical Sciences Adlershof (SALSA), Humboldt-Universität zu Berlin , Albert-Einstein-Str. 5-9, 10099 Berlin, Germany
| | | | | | - Roman Schuetz
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces , Am Mühlenberg 1, 14476 Potsdam, Germany
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27
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Yang Q, Peng H, Li J, Li Y, Xiong H, Chen L. Label-free colorimetric detection of tetracycline using analyte-responsive inverse-opal hydrogels based on molecular imprinting technology. NEW J CHEM 2017. [DOI: 10.1039/c7nj02368e] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Analyte-responsive inverse-opal hydrogels based on molecular imprinting technology were fabricated for selective, sensitive, and label-free colorimetric detection of tetracycline.
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Affiliation(s)
- Qian Yang
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- China
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation
| | - Hailong Peng
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- China
- Department of Biological and Agricultural Engineering
| | - Jinhua Li
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Yantai Institute of Coastal Zone Research
- Chinese Academy of Sciences
- Yantai 264003
- China
| | - Yanbin Li
- Department of Biological and Agricultural Engineering
- University of Arkansas
- Fayetteville
- USA
| | - Hua Xiong
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- China
| | - Lingxin Chen
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation
- Yantai Institute of Coastal Zone Research
- Chinese Academy of Sciences
- Yantai 264003
- China
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Zhu H, Liu A, Li D, Zhang Y, Wang X, Yang W, Gooding JJ, Liu J. Wafer-scale fabrication of a Cu/graphene double-nanocap array for surface-enhanced Raman scattering substrates. Chem Commun (Camb) 2017; 53:3273-3276. [DOI: 10.1039/c6cc09642e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel Cu/graphene double-nanocap array is developed via low-temperature CVD to serve as a highly sensitive, reproducible and stable SERS platform.
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Affiliation(s)
- Huihui Zhu
- College of Materials Science and Engineering
- Linyi University
- Linyi 276005
- China
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers
| | - Ao Liu
- College of Physics and Lab of New Fiber Materials and Modern Textile
- Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
- China
| | - Da Li
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Yongcheng Zhang
- College of Physics and Lab of New Fiber Materials and Modern Textile
- Growing Base for State Key Laboratory
- Qingdao University
- Qingdao 266071
- China
| | - Xiaoxia Wang
- College of Materials Science and Engineering
- Qingdao University
- Qingdao 266071
- China
| | - Wenrong Yang
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers
- College of Chemistry and Chemical Engineering
- Linyi University
- Linyi 276005
- China
| | - J. Justin Gooding
- School of Chemistry
- Australian Centre for NanoMedicine and ARC Centre of Excellence in Convergent Bio-Nano Science and Technology
- The University of New South Wales
- Sydney
- Australia
| | - Jingquan Liu
- College of Materials Science and Engineering
- Linyi University
- Linyi 276005
- China
- Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers
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29
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Zhang H, Liu D, Hang L, Li X, Liu G, Cai W, Li Y. Effective SERS-active substrates composed of hierarchical micro/nanostructured arrays based on reactive ion etching and colloidal masks. NANOTECHNOLOGY 2016; 27:395304. [PMID: 27573436 DOI: 10.1088/0957-4484/27/39/395304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A facile route has been proposed for the fabrication of morphology-controlled periodic SiO2 hierarchical micro/nanostructured arrays by reactive ion etching (RIE) using monolayer colloidal crystals as masks. By effectively controlling the experimental conditions of RIE, the morphology of a periodic SiO2 hierarchical micro/nanostructured array could be tuned from a dome-shaped one to a circular truncated cone, and finally to a circular cone. After coating a silver thin layer, these periodic micro/nanostructured arrays were used as surface-enhanced Raman scattering (SERS)-active substrates and demonstrated obvious SERS signals of 4-Aminothiophenol (4-ATP). In addition, the circular cone arrays displayed better SERS enhancement than those of the dome-shaped and circular truncated cone arrays due to the rougher surface caused by physical bombardment. After optimization of the circular cone arrays with different periodicities, an array with the periodicity of 350 nm exhibits much stronger SERS enhancement and possesses a low detection limit of 10(-10) M 4-ATP. This offers a practical platform to conveniently prepare SERS-active substrates.
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Affiliation(s)
- Honghua Zhang
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China. Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University, Nanchang 330013, People's Republic of China
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30
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Morphological and Structural Control of Organic Monolayer Colloidal Crystal Based on Plasma Etching and Its Application in Fabrication of Ordered Gold Nanostructured Arrays. CRYSTALS 2016. [DOI: 10.3390/cryst6100126] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Lotito V, Zambelli T. Self-Assembly of Single-Sized and Binary Colloidal Particles at Air/Water Interface by Surface Confinement and Water Discharge. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:9582-9590. [PMID: 27574790 DOI: 10.1021/acs.langmuir.6b02157] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We present an innovative apparatus allowing self-assembly at air/water interface in a smooth and reproducible way. The combination of water discharge and surface confinement of the area over which self-assembly takes place allows transfer of the assembled monolayer without any risk of damage to the colloidal crystal. As we demonstrate, the designed approach offers remarkable advantages in terms of cost and robustness compared to state-of-the art methods and is suitable for the fabrication of highly ordered monolayers even for more challenging assembly experiments such as transfer on rough substrates or assembly of binary colloids. Hence, our apparatus represents a significant headway toward high scale production of large area colloidal crystals. For the binary colloid assembly experiments, we also report the first experimental demonstration of a morphology based on the alternation of three and four small particles in the interstices between large particles.
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Affiliation(s)
- Valeria Lotito
- Laboratory of Biosensors and Bioelectronics, Institute for Biomedical Engineering, ETH Zurich , Gloriastrasse 35, 8092 Zurich, Switzerland
| | - Tomaso Zambelli
- Laboratory of Biosensors and Bioelectronics, Institute for Biomedical Engineering, ETH Zurich , Gloriastrasse 35, 8092 Zurich, Switzerland
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32
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Men D, Liu D, Li Y. Visualized optical sensors based on two/three-dimensional photonic crystals for biochemicals. Sci Bull (Beijing) 2016. [DOI: 10.1007/s11434-016-1134-7] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Colloidal Photonic Crystals Containing Silver Nanoparticles with Tunable Structural Colors. CRYSTALS 2016. [DOI: 10.3390/cryst6050061] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Wang Z, Ye W, Luo X, Wang Z. Fabrication of Superhydrophobic and Luminescent Rare Earth/Polymer complex Films. Sci Rep 2016; 6:24682. [PMID: 27086735 PMCID: PMC5263856 DOI: 10.1038/srep24682] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 04/04/2016] [Indexed: 01/19/2023] Open
Abstract
The motivation of this work is to create luminescent rare earth/polymer films with outstanding water-resistance and superhydrophobicity. Specifically, the emulsion polymerization of styrene leads to core particles. Then core-shell-structured polymer nanoparticles are synthesized by copolymerization of styrene and acrylic acid on the core surface. The coordination reaction between carboxylic groups and rare earth ions (Eu3+ and Tb3+) generates uniform spherical rare earth/polymer nanoparticles, which are subsequently complexed with PTFE microparticles to obtain micro-/nano-scaled PTFE/rare earth films with hierarchical rough morphology. The films exhibit large water contact angle up to 161° and sliding angle of about 6°, and can emit strong red and green fluorescence under UV excitation. More surprisingly, it is found that the films maintain high fluorescence intensity after submersed in water and even in aqueous salt solution for two days because of the excellent water repellent ability of surfaces.
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Affiliation(s)
- Zefeng Wang
- Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Weiwei Ye
- Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Xinran Luo
- Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhonggang Wang
- Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
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Wang Z, Ye W, Luo X, Wang Z. Heat-Resistant Crack-Free Superhydrophobic Polydivinylbenzene Colloidal Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3079-3084. [PMID: 26986041 DOI: 10.1021/acs.langmuir.6b00328] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Highly cross-linked poly(divinylbenzene) (PDVB) spherical colloidal particles with nano-, submicron-, and micron-sizes of 157.2 nm, 602.1 nm, and 5.1 μm were synthesized through emulsion and dispersion polymerization methods. The influences of particle size on the surface morphology, roughness, superhydrophobicity, and critical cracking thickness of colloidal films were studied in detail. The results show that PDVB colloidal films possess large water contact angle (CA) over 151°, belonging to superhydrophobic materials. Moreover, it is interesting to observe that the highly cross-linked network structure leads to PDVB film's excellent heat-resistance. The CA and rough surface morphology remain nearly unchanged after thermal-treatment of films at 150 °C for 24 h. In addition, no cracks were observed in films with thicknesses up to 8.1 μm, exceeding most of polymer and inorganic particle films reported in the literature. The simple and scalable preparation method, low-cost, superhydrophobicity, and excellent thermal stability endow the PDVB colloidal films with promising applications in advanced coating fields, especially when employed in the high-temperature service environment.
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Affiliation(s)
- Zefeng Wang
- Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology , Dalian 116024, China
| | - Weiwei Ye
- Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology , Dalian 116024, China
| | - Xinran Luo
- Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology , Dalian 116024, China
| | - Zhonggang Wang
- Department of Polymer Science and Materials, School of Chemical Engineering, Dalian University of Technology , Dalian 116024, China
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Hoshyargar F, Mahajan M, Anuradha, Bhosale SV, Kyratzis L, Bhatt AI, O'Mullane AP. Superhydrophobic Fabrics for Oil/Water Separation Based on the Metal–Organic Charge‐Transfer Complex CuTCNAQ. Chempluschem 2016; 81:378-383. [DOI: 10.1002/cplu.201600021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Indexed: 12/31/2022]
Affiliation(s)
- Faegheh Hoshyargar
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) GPO Box 2434 Brisbane QLD 4001 Australia
| | - Manika Mahajan
- School of Applied Sciences RMIT University GPO Box 2476V Melbourne VIC 3001 Australia
| | - Anuradha
- School of Applied Sciences RMIT University GPO Box 2476V Melbourne VIC 3001 Australia
| | - Sheshanath V. Bhosale
- School of Applied Sciences RMIT University GPO Box 2476V Melbourne VIC 3001 Australia
| | - Louis Kyratzis
- CSIRO Materials Science and Engineering P. O. Box 312 Clayton South VIC 3169 Australia
| | - Anand I. Bhatt
- CSIRO Energy Technology P. O. Box 312 Clayton South VIC 3169 Australia
| | - Anthony P. O'Mullane
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) GPO Box 2434 Brisbane QLD 4001 Australia
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Wang PY, Thissen H, Kingshott P. Stimulation of Early Osteochondral Differentiation of Human Mesenchymal Stem Cells Using Binary Colloidal Crystals (BCCs). ACS APPLIED MATERIALS & INTERFACES 2016; 8:4477-4488. [PMID: 26812467 DOI: 10.1021/acsami.5b12660] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new surface based on self-assembly of two colloids into well-defined nanostructures, so-called binary colloidal crystals (BCCs), was fabricated for stem cell culture. The facile fabrication process are able to cover large surface areas (>3 cm-diameter, i.e. > 7 cm(2)) with ordered surface nanotopographies that is often a challenge particularly in biomaterials science. From our library, four different combinations of BCCs were selected using mixtures of silica, polystyrene and poly(methyl methacrylate) particles with sizes in the range from 100 nm to 5 μm. Cell spreading, proliferation, and surface-induced lineage commitment of human adipose-derived stem cells (hADSCs) was studied using quantitative real time polymerase chain reaction (qRT-PCR) and immunostaining. The results showed that BCCs induced osteo- and chondro- but not adipo-gene expression in the absence of induction medium suggesting that the osteochondral lineage can be stimulated by the BCCs. When applying induction media, higher osteo- and chondro-gene expression on BCCs was found compared with tissue culture polystyrene (TCPS) and flat silica (Si) controls, respectively. Colony forming of chondrogenic hADSCs was found on BCCs and TCPS but not Si controls, suggesting that the differentiation of stem cells is surface-dependent. BCCs provide access to complex nanotopographies and chemistries, which can find applications in cell culture and regenerative medicine.
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Affiliation(s)
- Peng-Yuan Wang
- Department of Chemistry and Biotechnology, Swinburne University of Technology , Hawthorn, 3122 Victoria, Australia
- CSIRO Manufacturing , Bayview Avenue, Clayton, 3168 Victoria, Australia
- Department of Anatomy and Neuroscience, Florey Neuroscience and Mental Health Institute, The University of Melbourne , Melbourne, Australia
| | - Helmut Thissen
- CSIRO Manufacturing , Bayview Avenue, Clayton, 3168 Victoria, Australia
| | - Peter Kingshott
- Department of Chemistry and Biotechnology, Swinburne University of Technology , Hawthorn, 3122 Victoria, Australia
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40
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Zhang Z, Geng C, Hao Z, Wei T, Yan Q. Recent advancement on micro-/nano-spherical lens photolithography based on monolayer colloidal crystals. Adv Colloid Interface Sci 2016; 228:105-22. [PMID: 26732300 DOI: 10.1016/j.cis.2015.11.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 11/18/2015] [Accepted: 11/19/2015] [Indexed: 10/22/2022]
Abstract
Highly ordered nanostructures have gained substantial interest in the research community due to their fascinating properties and wide applications.Micro-/nano-spherical lens photolithography (SLPL) has been recognized as an inexpensive, inherently parallel, and high-throughput approach to the creation of highly ordered nanostructures. SLPL based on monolayer colloidal crystals (MCCs) of self-assembled colloidal micro-/nano-spheres have recently made remarkable progress in overcoming the constraints of conventional photolithography in terms of cost, feature size, tunability, and pattern complexity. In this review, we highlight the current state-of-the-art in this field with an emphasis on the fabrication of a variety of highly ordered nanostructures based on this technique and their demonstrated applications in light emitting diodes, nano-patterning semiconductors, and localized surface plasmon resonance devices. Finally, we present a perspective on the future development of MCC-based SLPL technique, including a discussion on the improvement of the quality of MCCs and the compatibility of this technique with other semiconductor micromachining process for nanofabrication.
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41
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Zhang L, Wang W, Zheng L, Wang X, Yan Q. Quantitative Characterization of Mechanical Property of Annealed Monolayer Colloidal Crystal. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:451-459. [PMID: 26700374 DOI: 10.1021/acs.langmuir.5b04091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Quantitative characterization of the mechanical properties of a polystyrene (PS) monolayer colloidal crystal (MCC) annealed with solvent vapor has been performed for the first time by means of atomic force microscopy nanoindentation. The results showed that both the compressive and bending elastic modulus of PS MCC increased with the prolongation of annealing time from initial to 13 min. When the annealing time reached 15 min or even more, the PS MCC almost deformed to a planar film, and the elastic modulus of the PS MCC presented a drastic increase. These results provide a basis for tailoring the mechanical properties of a polymer colloidal monolayer via solvent vapor annealing. Such self-supported and high-mechanical-strength colloidal monolayers can be transferred to other surfaces for potential and promising applications in the bottom-up fabrication of highly ordered nanostructured materials such as nano dot arrays, photonic crystals, and many others.
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Affiliation(s)
- Lijing Zhang
- Department of Chemistry and ‡State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University , Beijing 100084, China
| | - Weiqi Wang
- Department of Chemistry and ‡State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University , Beijing 100084, China
| | - Lu Zheng
- Department of Chemistry and ‡State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University , Beijing 100084, China
| | - Xiuyu Wang
- Department of Chemistry and ‡State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University , Beijing 100084, China
| | - Qingfeng Yan
- Department of Chemistry and ‡State Key Laboratory of Tribology, Department of Mechanical Engineering, Tsinghua University , Beijing 100084, China
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42
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Fu M, Wang X, Zhao H, He D, Wang Y. Synthesis of ZnO inverse opals with high crystalline quality by a three-dimensional colloidal crystal template-assisted hydrothermal method over a seed layer. CrystEngComm 2016. [DOI: 10.1039/c6ce01597b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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43
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Li D, Wu R, Li J, Li W, Zhang Y, She H. Facile fabrication of an underwater superoleophobic mesh for effective separation of oil/simulated seawater mixtures. RSC Adv 2016. [DOI: 10.1039/c6ra16900g] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The underwater superoleophobic meshes can efficiently separate oil/simulated seawater mixture and exhibit excellent environmental stability.
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Affiliation(s)
- Dianming Li
- Key Laboratory Eco-Environment-Related Polymer Materials of Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- China
| | - Runni Wu
- Key Laboratory Eco-Environment-Related Polymer Materials of Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- China
| | - Jian Li
- Key Laboratory Eco-Environment-Related Polymer Materials of Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- China
| | - Weijun Li
- Key Laboratory Eco-Environment-Related Polymer Materials of Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- China
| | - Yan Zhang
- Key Laboratory Eco-Environment-Related Polymer Materials of Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- China
| | - Houde She
- Key Laboratory Eco-Environment-Related Polymer Materials of Ministry of Education
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou 730070
- China
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44
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Guo F, Guo Z. Inspired smart materials with external stimuli responsive wettability: a review. RSC Adv 2016. [DOI: 10.1039/c6ra04079a] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Recent progress in smart surfaces with responsive wettability upon external stimuli is reviewed and some of the barriers and potentially promising breakthroughs in this field are also briefly discussed.
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Affiliation(s)
- Fei Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- People's Republic of China
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- People's Republic of China
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45
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Li Z, Wang W, Zhang L, Yang Z, Tian M, Zhang Y. Magnetically modulated critical current densities of Co/Nb hybrid. Sci Rep 2015; 5:18601. [PMID: 26678595 PMCID: PMC4683466 DOI: 10.1038/srep18601] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 11/23/2015] [Indexed: 11/23/2022] Open
Abstract
By tuning morphology and size of magnetic subsystem, ferromagnet-superconductor (F/S) hybrid system provides an effective way to modulate superconductivity due to the interaction between superconducting and magnetic-order parameters at the mesoscopic length scale. In this work, we report on investigations of critical current density in a large-area Co/Nb hybrid via facile colloidal lithography. Here, Co hexagon shell array as a magnetic template build on Nb film to modulate the critical current density. A novel superconducting transition has been observed in I-V curve with two metastable transition states: double-transition and binary-oscillation-transition states. Importantly, such unusual behavior can be adjusted by temperature, magnetic field and contact area of F/S. Such hybrid film has important implications for understanding the role of magnetic subsystem modulating superconductivity, as well as applied to low-energy electronic devices such as superconducting current fault limiters.
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Affiliation(s)
- Zhigang Li
- High magnetic field laboratory, Chinese Academy of Sciences, Hefei 230031, P. R. China
- Department of Physics & Electronic Engineering, Taizhou University, Taizhou 318000, China
| | - Weike Wang
- High magnetic field laboratory, Chinese Academy of Sciences, Hefei 230031, P. R. China
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Li Zhang
- Department of Physics & Electronic Engineering, Taizhou University, Taizhou 318000, China
| | - Zhaorong Yang
- High magnetic field laboratory, Chinese Academy of Sciences, Hefei 230031, P. R. China
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Mingliang Tian
- High magnetic field laboratory, Chinese Academy of Sciences, Hefei 230031, P. R. China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
| | - Yuheng Zhang
- High magnetic field laboratory, Chinese Academy of Sciences, Hefei 230031, P. R. China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
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46
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Yong J, Chen F, Yang Q, Hou X. Femtosecond laser controlled wettability of solid surfaces. SOFT MATTER 2015; 11:8897-8906. [PMID: 26415826 DOI: 10.1039/c5sm02153g] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Femtosecond laser microfabrication is emerging as a hot tool for controlling the wettability of solid surfaces. This paper introduces four typical aspects of femtosecond laser induced special wettability: superhydrophobicity, underwater superoleophobicity, anisotropic wettability, and smart wettability. The static properties are characterized by the contact angle measurement, while the dynamic features are investigated by the sliding behavior of a liquid droplet. Using different materials and machining methods results in different rough microstructures, patterns, and even chemistry on the solid substrates. So, various beautiful wettabilities can be realized because wettability is mainly dependent on the surface topography and chemical composition. The distinctions of the underlying formation mechanism of these wettabilities are also described in detail.
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Affiliation(s)
- Jiale Yong
- Key Laboratory of Photonics Technology for Information of Shaanxi Province & State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
| | - Feng Chen
- Key Laboratory of Photonics Technology for Information of Shaanxi Province & State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
| | - Qing Yang
- Key Laboratory of Photonics Technology for Information of Shaanxi Province & State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
| | - Xun Hou
- Key Laboratory of Photonics Technology for Information of Shaanxi Province & State Key Laboratory for Manufacturing System Engineering, School of Electronics & Information Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
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47
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Elliott PR, Stagon SP, Huang H. Control of Separation and Diameter of Ag Nanorods through Self-organized Seeds. Sci Rep 2015; 5:16826. [PMID: 26585104 PMCID: PMC4653628 DOI: 10.1038/srep16826] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 10/20/2015] [Indexed: 11/09/2022] Open
Abstract
This paper proposes a mechanism of controlling the diameter and separation of metallic nanorods from physical vapor deposition through self-organized seeds and experimentally demonstrates the feasibility using Ag as the prototype metal, In as the seed, and Si the substrate. Being non-wetting on Si substrates, deposited In atoms self-organize into islands. Subsequently deposited Ag atoms attach to In islands, rather than to Si substrates, due to preferential bonding and geometrical shadowing. The experimental results show that self-organized In seeds of 5 nm nominal thickness give rise to the best separation and the smallest diameter of Ag nanorods.
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Affiliation(s)
- Paul R Elliott
- Mechanical Engineering, University of Connecticut, Storrs, CT 06269, USA.,Mechanical and Industrial Engineering, Northeastern University, Boston, MA 02115, USA
| | - Stephen P Stagon
- Mechanical Engineering, University of North Florida, Jacksonville, FL 32224, USA
| | - Hanchen Huang
- Mechanical and Industrial Engineering, Northeastern University, Boston, MA 02115, USA
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Wu X, Xu R, Zhu R, Wu R, Zhang B. Converting 2D inorganic-organic ZnSe-DETA hybrid nanosheets into 3D hierarchical nanosheet-based ZnSe microspheres with enhanced visible-light-driven photocatalytic performances. NANOSCALE 2015; 7:9752-9759. [PMID: 25962330 DOI: 10.1039/c5nr02329g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Engineering two-dimensional (2D) nanosheets into three-dimensional (3D) hierarchical structures is one of the great challenges in nanochemistry and materials science. We report a facile and simple chemical conversion route to fabricate 3D hierarchical nanosheet-based ZnSe microspheres by using 2D inorganic-organic hybrid ZnSe-DETA (DETA = diethylenetriamine) nanosheets as the starting precursors. The conversion mechanism involves the controlled depletion of the organic-component (DETA) from the hybrid precursors and the subsequent self-assembly of the remnant inorganic-component (ZnSe). The transformation reaction of ZnSe-DETA nanosheets is mainly influenced by the concentration of DETA in the reaction solution. We demonstrated that this organic-component depletion method could be extended to the synthesis of other hierarchical structures of metal sulfides. In addition, the obtained hierarchical nanosheet-based ZnSe microspheres exhibited outstanding performance in visible light photocatalytic degradation of methyl orange and were highly active for photocatalytic H2 production.
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Affiliation(s)
- Xuan Wu
- Department of Chemistry, School of Science, Tianjin University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China.
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Gallego-Gómez F, Blanco A, López C. Exploration and exploitation of water in colloidal crystals. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:2686-2714. [PMID: 25753505 DOI: 10.1002/adma.201405008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 01/09/2015] [Indexed: 06/04/2023]
Abstract
Water on solid surfaces is ubiquitously found in nature, in most cases due to mere adsorption from ambient moisture. Because porous structures have large surfaces, water may significantly affect their characteristics. This is particularly obvious in systems formed by separate particles, whose interactions are strongly influenced by small amounts of liquid. Water/solid phenomena, like adsorption, condensation, capillary forces, or interparticle cohesion, have typically been studied at relatively large scales down to the microscale, like in wet granular media. However, much less is known about how water is confined and acts at the nanoscale, for example, in the interstices of divided systems, something of utmost importance in many areas of materials science nowadays. With novel approaches, in-depth investigations as to where and how water is placed in the nanometer-sized pores of self-assembled colloidal crystals have been made, which are employed as a well-defined, versatile model system with useful optical properties. In this Progress Report, knowledge gained in the last few years about water distribution in such nanoconfinements is gathered, along with how it can be controlled and the consequences it brings about to extract new or enhance existing material functionalities. New methods developed and new capabilities of standard techniques are described, and the water interplay with the optical, chemical, and mechanical properties of the ensemble are discussed. Some lines for applicability are also highlighted and aspects to be addressed in the near future are critically summarized.
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Affiliation(s)
- Francisco Gallego-Gómez
- Instituto de Ciencia de Materiales de Madrid, c/Sor Juana Inés de la Cruz 3, 28049, Madrid, Spain
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50
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Cai Z, Smith NL, Zhang JT, Asher SA. Two-dimensional photonic crystal chemical and biomolecular sensors. Anal Chem 2015; 87:5013-25. [PMID: 25867803 DOI: 10.1021/ac504679n] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We review recent progress in the development of two-dimensional (2-D) photonic crystal (PC) materials for chemical and biological sensing applications. Self-assembly methods were developed in our laboratory to fabricate 2-D particle array monolayers on mercury and water surfaces. These hexagonal arrays strongly forward Bragg diffract light to report on their array spacings. By embedding these 2-D arrays onto responsive hydrogel surfaces, 2-D PC sensing materials can be fabricated. The 2-D PC sensors utilize responsive polymer hydrogels that are chemically functionalized to show volume phase transitions in selective response to particular chemical species. Novel hydrogels were also developed in our laboratory by cross-linking proteins while preserving their native structures to maintain their selective binding affinities. The volume phase transitions swell or shrink the hydrogels, which alter their 2-D array spacings, and shift their diffraction wavelengths. These shifts can be visually detected or spectrally measured. These 2-D PC sensing materials have been used for the detection of many analytes, such as pH, surfactants, metal ions, proteins, anionic drugs, and ammonia. We are exploring the use of organogels that use low vapor pressure ionic liquids as their mobile phases for sensing atmospheric analytes.
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Affiliation(s)
- Zhongyu Cai
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Natasha L Smith
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Jian-Tao Zhang
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Sanford A Asher
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
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