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Current progress in organic–inorganic hetero-nano-interfaces based electrochemical biosensors for healthcare monitoring. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214282] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Prince E, Wang Y, Smalyukh II, Kumacheva E. Cylindrical Confinement of Nanocolloidal Cholesteric Liquid Crystal. J Phys Chem B 2021; 125:8243-8250. [PMID: 34259528 DOI: 10.1021/acs.jpcb.1c04387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The organization of nanocolloidal liquid crystals in constrained geometries has fundamental and practical importance, since under confinement, liquid crystals contain stable topological defects that can serve as templates for nanoparticle organization. Three-dimensional confinement of cholesteric (Ch) liquid crystals formed by cellulose nanocrystals (CNCs) have been extensively studied; however, their two-dimensional confinement remains under-investigated. Here, we report the results of systematic experimental studies of two-dimensional confinement of Ch-CNC liquid crystal in cylindrical capillaries with varying inner diameters. Confinement resulted in phase separation of the Ch-CNC liquid crystal into a Ch shell formed by concentric CNC pseudolayers with the helicoidal axis perpendicular to the inner surface of the capillary walls, and a micrometer-diameter isotropic core thread running parallel to the long axis of the capillary. The morphology of the confined Ch-CNC liquid crystal varied when progressively increasing the degree confinement. Finally, we show that phase separation of the Ch-CNC liquid crystal into a Ch shell and an isotropic core is preserved in flexible capillary tubing, suggesting the applicability of this system for the fabrication of flexible optical waveguides.
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Affiliation(s)
- Elisabeth Prince
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Yongliang Wang
- College of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China
| | - Ivan I Smalyukh
- Department of Physics and Soft Materials Research Center, University of Colorado, Boulder, Colorado 80309, United States.,Materials Science and Engineering Program, University of Colorado, Boulder, Colorado 80309, United States
| | - Eugenia Kumacheva
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada.,Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada.,Institute of Biomaterials and Biomedical Engineering, University of Toronto, 4 Taddle Creek Road, Toronto, Ontario M5S 3G9, Canada
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Fizer M, Slivka M, Sidey V, Baumer V, Mariychuk R. XRD, NMR, FT-IR and DFT structural characterization of a novel organic-inorganic hybrid perovskite-type hexabromotellurate material. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130227] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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4
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Gassenq A, Chevrier K, Bard A, Benoit JM, Symonds C, Bellessa J. Selective grating obtained by dye microstructuration based on local photobleaching using a laser writer. APPLIED OPTICS 2020; 59:5697-5701. [PMID: 32609692 DOI: 10.1364/ao.393103] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
We propose a method to pattern organic optically active materials based on local photobleaching for creating a wavelength-selective grating. Usually, photobleaching is considered a limitation for an organic emitter. Here, this property is exploited to locally suppress dye emission and absorption at the microscale with an abrupt interface and no changes in layer thickness. Periodic patterns were fabricated and exhibit diffraction only at a 590 nm wavelength with a spectral selectivity of 11 nm. Based on laser writer flexibility and efficiency, this study shows the potential of local photobleaching for applications such as wavelength-selective grating fabrication.
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Jeong H, Oh K. Uracil-doped DNA thin solid films: a new way to control optical dispersion of DNA film using a RNA constituent. OPTICS EXPRESS 2019; 27:36075-36087. [PMID: 31873394 DOI: 10.1364/oe.27.036075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 11/15/2019] [Indexed: 06/10/2023]
Abstract
Among five nucleobases, adenine (A), guanine (G), cytosine (C), thymine (T) and uracil (U), uracil is a key distinctive constituent existing only in ribonucleic acid (RNA). RNA shares the common A, G, and C with deoxyribonucleic acid (DNA) made of A-T, G-C hydrogen bonding. We explored a new attempt to combine uracil (U) with DNA, successfully realizing U-doped DNA thin solid films for the first time. Impacts of uracil on optical properties of the films were thoroughly investigated. The method was based on optimal spin-coating of an aqueous solution of DNA and uracil over silicon or silica substrates. Optical absorption of both aqueous solution and U-doped DNA thin solid films was characterized in a wide spectral range covering UV-visible-IR. Immobilization of uracil within DNA thin solid films was experimentally confirmed by FTIR spectroscopy studies. By using an ellipsometer, we measured the refractive indices of the films and discovered that U-doping was a very effective means to control optical dispersion DNA thin solid film. We further investigated thermo-optic behavior to find impacts of U-doping in DNA films. Detailed thin film processes and optical characterizations are discussed.
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Meenu K, Bag DS, Lagarkha R, Tomar R, Gupta AK. Functional Polysilanes and their Optical, Chiroptical and Photoluminescence Properties. CURRENT ORGANOCATALYSIS 2019. [DOI: 10.2174/2213337206666190415124549] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
‘Polysilanes’ is an important class of inorganic polymers having Si-Si σ-conjugation along the backbone. They exhibit extraordinary electronic and photophysical properties and find suitable optoelectronics applications. They are typically synthesized by Wurtz coupling reaction of dichlorodialkylsilane or dichlorodiphenylsilane or dichloroalkylphenylsilane and their combinations under drastic reaction conditions by using sodium dispersion in boiling toluene. In such a drastic condition, no functional groups sustain with polysilane polymer. In order to achieve such functional materials, researchers have been interested in synthesizing functional polysilane with a different functional group like a chiral group, azobenzene containing chromophore and other heteroatoms in their main chain or side chain. Therefore, it is a very challenging task to synthesize polysilanes having effective functionality integrated with their structures. However, the modern technological demand of materials leads to efforts to obtain polymers having functional and multifunctional activity in a single material. In this review article, we cover the synthesis of polysilane with functional activity via pre-polymerization and post-polymerization with a functional group.
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Affiliation(s)
- Km. Meenu
- Defence Material and Stores Research and Development Establishment (DMSRDE) DMSRDE P.O., G.T. Road, Kanpur-208013, India
| | - Dibyendu S. Bag
- Defence Material and Stores Research and Development Establishment (DMSRDE) DMSRDE P.O., G.T. Road, Kanpur-208013, India
| | - Rekha Lagarkha
- Department of Chemistry Bundelkhand University Jhansi-284128, India
| | - Radha Tomar
- SOS in Chemistry, Jiwaji University, Gwalior-474011, India
| | - Arvind K. Gupta
- Defence Research and Development Establishment (DRDE), Gwalior- 474001, India
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7
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Preparation of flexible transparent acryl/alumina nano-hybrid materials exhibiting low thermal expansion coefficient. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1627-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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8
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Huang H, Wu Y, Zhang W, Feng C, Wang BQ, Cai WF, Hu P, Zhao KQ, Xiang SK. Copper-Catalyzed Regioselective C-H Sulfonyloxylation of Electron-Rich Arenes with p-Toluenesulfonic Acid and Sulfonyloxylation of Aryl(mesityl)iodonium Sulfonates. J Org Chem 2017; 82:3094-3101. [PMID: 28230367 DOI: 10.1021/acs.joc.7b00081] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Copper-catalyzed regioselective C-H sulfonyloxylation of electron-rich arenes with p-toluenesulfonic acid has been developed. Electron-rich benzene derivatives and heteroarenes can undergo this C-H sulfonyloxylation reaction to generate aryl tosylates. Furthermore, sulfonyloxylation of aryl(mesityl)iodonium sulfonates has also been investigated. Both aryl(mesityl)iodonium tosylates and triflates can react smoothly to get aryl sulfonates. The formed aryl sulfonates can be converted to phenols, as well as used as good partners of cross-coupling reactions.
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Affiliation(s)
- He Huang
- College of Chemistry and Materials Science, Sichuan Normal University , Chengdu 610068, People's Republic of China
| | - Yang Wu
- College of Chemistry and Materials Science, Sichuan Normal University , Chengdu 610068, People's Republic of China
| | - Wen Zhang
- College of Chemistry and Materials Science, Sichuan Normal University , Chengdu 610068, People's Republic of China
| | - Chun Feng
- College of Chemistry and Materials Science, Sichuan Normal University , Chengdu 610068, People's Republic of China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University , Chengdu 610068, People's Republic of China
| | - Wan-Fei Cai
- College of Chemistry and Materials Science, Sichuan Normal University , Chengdu 610068, People's Republic of China
| | - Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University , Chengdu 610068, People's Republic of China
| | - Ke-Qing Zhao
- College of Chemistry and Materials Science, Sichuan Normal University , Chengdu 610068, People's Republic of China
| | - Shi-Kai Xiang
- College of Chemistry and Materials Science, Sichuan Normal University , Chengdu 610068, People's Republic of China
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Kanaujia PK, Vijaya Prakash G. Laser-induced microstructuring of two-dimensional layered inorganic–organic perovskites. Phys Chem Chem Phys 2016; 18:9666-72. [DOI: 10.1039/c6cp00357e] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Non-contact bi-directional micropatterning of two-dimensional (2D) layered inorganic–organic (IO) perovskite [(R-NH3)2PbI4, R = organic moiety] thin films by direct laser writing (DLW) has been reported.
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Affiliation(s)
- Pawan K. Kanaujia
- Nanophotonics Lab
- Department of Physics
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - G. Vijaya Prakash
- Nanophotonics Lab
- Department of Physics
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
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10
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Wang M, Han XW, Liu L, Zeng XF, Zou HK, Wang JX, Chen JF. Transparent Aqueous Mg(OH)2 Nanodispersion for Transparent and Flexible Polymer Film with Enhanced Flame-Retardant Property. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b03172] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miao Wang
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xing-Wei Han
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Long Liu
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xiao-Fei Zeng
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hai-Kui Zou
- Research
Center of the Ministry of Education for High Gravity Engineering and
Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jie-Xin Wang
- Research
Center of the Ministry of Education for High Gravity Engineering and
Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jian-Feng Chen
- State
Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Research
Center of the Ministry of Education for High Gravity Engineering and
Technology, Beijing University of Chemical Technology, Beijing, 100029, China
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Samiey B, Cheng CH, Wu J. Organic-Inorganic Hybrid Polymers as Adsorbents for Removal of Heavy Metal Ions from Solutions: A Review. MATERIALS (BASEL, SWITZERLAND) 2014; 7:673-726. [PMID: 28788483 PMCID: PMC5453072 DOI: 10.3390/ma7020673] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 01/06/2014] [Accepted: 01/10/2014] [Indexed: 11/16/2022]
Abstract
Over the past decades, organic-inorganic hybrid polymers have been applied in different fields, including the adsorption of pollutants from wastewater and solid-state separations. In this review, firstly, these compounds are classified. These compounds are prepared by sol-gel method, self-assembly process (mesopores), assembling of nanobuilding blocks (e.g., layered or core-shell compounds) and as interpenetrating networks and hierarchically structures. Lastly, the adsorption characteristics of heavy metals of these materials, including different kinds of functional groups, selectivity of them for heavy metals, effect of pH and synthesis conditions on adsorption capacity, are studied.
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Affiliation(s)
- Babak Samiey
- Department of Chemistry, Faculty of Science, Lorestan University, Khoramabad 68137-17133, Iran.
| | - Chil-Hung Cheng
- Department of Chemical Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada.
| | - Jiangning Wu
- Department of Chemical Engineering, Ryerson University, Toronto, ON M5B 2K3, Canada.
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12
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Chen CT, Ghosh S, Malla Reddy C, Buehler MJ. Molecular mechanics of elastic and bendable caffeine co-crystals. Phys Chem Chem Phys 2014; 16:13165-71. [DOI: 10.1039/c3cp55117b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Enríquez AC, Pérez MGF, Sánchez JLA, Höpfl H, Parra-Hake M, Campos-Gaxiola JJ. Supramolecular networks in organic–inorganic hybrid materials from perchlorometalate(ii) salts and 2,4,5-tri(4-pyridyl)imidazole. CrystEngComm 2012. [DOI: 10.1039/c2ce25476j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
The interest in organic-inorganic hybrids as materials for optics and photonics started more than 25 years ago and since then has known a continuous and strong growth. The high versatility of sol-gel processing offers a wide range of possibilities to design tailor-made materials in terms of structure, texture, functionality, properties and shape modelling. From the first hybrid material with optical functional properties that has been obtained by incorporation of an organic dye in a silica matrix, the research in the field has quickly evolved towards more sophisticated systems, such as multifunctional and/or multicomponent materials, nanoscale and self-assembled hybrids and devices for integrated optics. In the present critical review, we have focused our attention on three main research areas: passive and active optical hybrid sol-gel materials, and integrated optics. This is far from exhaustive but enough to give an overview of the huge potential of these materials in photonics and optics (254 references).
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Affiliation(s)
- Benedicte Lebeau
- Equipe Matériaux à Porosité Contrôlée, Institut de Science des Matériaux de Mulhouse, CNRS LRC 7228, UHA-ENSCMu, 3 rue Alfred Werner, 68093 Mulhouse cedex, France
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Guo F, Zhang MQ, Lu N, Guan HY, Tong J, Wang BX. Co-crystal of [CuCl4]2− and L1 and its inclusion compounds with three different guests (L1 = N,N,N′,N′-tetra-p-methoxybenzyl-ethylenediamine). CrystEngComm 2011. [DOI: 10.1039/c1ce05713h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Park SK, Lee JM, Park S, Kim JT, Kim MS, Lee MH, Ju JJ. Highly fluorinated and photocrosslinkable liquid prepolymers for flexible optical waveguides. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm02604b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Lü C, Yang B. High refractive index organic–inorganic nanocomposites: design, synthesis and application. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b816254a] [Citation(s) in RCA: 310] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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