1
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Tian HW, Xu Z, Li HB, Hu XY, Guo DS. Study on assembling compactness of amphiphilic calixarenes by fluorescence anisotropy. Supramol Chem 2022. [DOI: 10.1080/10610278.2022.2087523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Han-Wen Tian
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, China
| | - Zhe Xu
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, China
| | - Hua-Bin Li
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, China
| | - Xin-Yue Hu
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, China
| | - Dong-Sheng Guo
- College of Chemistry, Key Laboratory of Functional Polymer Materials (Ministry of Education), State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, China
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2
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Humeniuk H, Gini A, Hao X, Coelho F, Sakai N, Matile S. Pnictogen-Bonding Catalysis and Transport Combined: Polyether Transporters Made In Situ. JACS AU 2021; 1:1588-1593. [PMID: 34723261 PMCID: PMC8549043 DOI: 10.1021/jacsau.1c00345] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Indexed: 05/16/2023]
Abstract
The combination of catalysis and transport across lipid bilayer membranes promises directional access to a solvent-free and structured nanospace that could accelerate, modulate, and, at best, enable new chemical reactions. To elaborate on these expectations, anion transport and catalysis with pnictogen and tetrel bonds are combined with polyether cascade cyclizations into bioinspired cation transporters. Characterized separately, synergistic anion and cation transporters of very high activity are identified. Combined for catalysis in membranes, cascade cyclizations are found to occur with a formal rate enhancement beyond one million compared to bulk solution and product formation is detected in situ as an increase in transport activity. With this operational system in place, intriguing perspectives open up to exploit all aspects of this unique nanospace for important chemical transformations.
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3
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Structures and strategies for enhanced sensitivity of polydiacetylene(PDA) based biosensor platforms. Biosens Bioelectron 2021; 181:113120. [PMID: 33714858 DOI: 10.1016/j.bios.2021.113120] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 01/20/2021] [Accepted: 02/25/2021] [Indexed: 11/22/2022]
Abstract
Polydiacetylene (PDA) is a versatile polymer that has been studied in numerous fields because of its unique optical properties derived from alternating multiple bonds in the polymer backbone. The conjugated structure in the polymer backbone enables PDA to possess the ability of blue-red colorimetric transition when π-π interactions in the PDA backbone chain are disturbed by the external environment. The chromatic property of PDA disturbed by external stimuli can also emit fluorescence in the red region. Owing to the unique characteristics of PDA, it has been widely studied in facile and label-free sensing applications based on colorimetric or fluorescence signals for several decades. Among the various PDA structures, membrane structures assembled by amphiphilic molecules are widely used as a versatile platform because facile modification of the synthetic membrane provides extensive applications, such as receptor-ligand interactions, resulting in potent biosensors. To use PDA as a sensory material, several methods have been studied to endow the specificity to PDA molecules and to amplify the signal from PDA supramolecules. This is because selective and sensitive detection of target materials is required at an appropriate level corresponding to each material for applicable sensor applications. This review focuses on factors that affect the sensitivity of PDA composites and several strategies to enhance the sensitivity of the PDA sensor to various structures. Owing to these strategies, the PDA sensor system has achieved a higher level of sensitivity and selectivity, enabling it to detect multiple target materials for a full field of application.
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4
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Kamimura A, Umemoto H, Kawamoto T, Honda T. Development of Water Solubility of 2-Phenylsulfanylhydroquinone Dimer Dye. ACS OMEGA 2021; 6:9254-9262. [PMID: 33842794 PMCID: PMC8028172 DOI: 10.1021/acsomega.1c00703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 03/12/2021] [Indexed: 06/12/2023]
Abstract
With the aim of developing a new fluorescence dye with enhanced photophysical properties, this study describes the modification of the 2-phenylsulfanylhydroquinone dimer to realize a new bioimaging molecule. The characteristics of the dimer were advanced by introducing tetraethylene glycol side chains to provide sufficient water solubility and a tether consisting of an N-hydroxysuccinimide-terminated C6-carbon chain to attach bioactive molecules. Two derivatives containing two or three tetraethylene glycol side chains were designed and prepared, and the latter showed sufficient water solubility for biochemical applications. Both compounds exhibited similar photophysical properties and blue fluorescence under UV light irradiation. The dye containing three tetraethylene glycol units reacted with bovine serum albumin in water to give fluorescent derivatives.
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Affiliation(s)
- Akio Kamimura
- Department
of Applied Chemistry, Yamaguchi University, Ube 755-8611, Japan
| | - Haruka Umemoto
- Department
of Applied Chemistry, Yamaguchi University, Ube 755-8611, Japan
| | - Takuji Kawamoto
- Department
of Applied Chemistry, Yamaguchi University, Ube 755-8611, Japan
| | - Takeshi Honda
- Department
of Pharmacology, School of Medicine, Yamaguchi
University, Ube 755-8505, Japan
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5
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Duan L, Zhao Y. Selective Binding of Dopamine and Epinephrine in Water by Molecularly Imprinted Fluorescent Receptors. Chem Asian J 2020; 15:1035-1038. [PMID: 32043821 PMCID: PMC7480134 DOI: 10.1002/asia.201901783] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/06/2020] [Indexed: 01/02/2023]
Abstract
Catecholamines play important roles in biology but their structural similarity makes it challenging to construct synthetic receptors with selective binding. A combination of covalent and noncovalent binding groups in the hydrophobic core of water-soluble nanoparticles enabled them to recognize dopamine and epinephrine with an association constant (Ka ) of 3-4×104 M-1 in water, an order of magnitude higher than those of previously reported synthetic hosts. In addition, minute structural changes among analogues were detected including the addition or removal of a single hydroxyl or methyl group.
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Affiliation(s)
- Likun Duan
- Department of Chemistry, Iowa State University, Ames, IA, 50011-3111, U.S.A
| | - Yan Zhao
- Department of Chemistry, Iowa State University, Ames, IA, 50011-3111, U.S.A
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6
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Tong KY, Zhao J, Tse CW, Wan PK, Rong J, Au-Yeung HY. Selective catecholamine detection in living cells by a copper-mediated oxidative bond cleavage. Chem Sci 2019; 10:8519-8526. [PMID: 31762971 PMCID: PMC6855198 DOI: 10.1039/c9sc03338f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 08/10/2019] [Indexed: 12/17/2022] Open
Abstract
The development of a new triggered-release system for selective detection of catecholamines in biological samples including living cells is reported. Catecholamines are a class of tightly regulated hormones and neurotransmitters in the human body and their dysregulation is implicated in various neurodegenerative diseases. It is highly challenging to selectively sense and detect catecholamines in a complex biological environment due to their small size, non-specific molecular shape and trivial chemical properties. In this study, a copper-based, catecholamine-triggered oxidation that releases a fluorescent reporter is described. The probe is highly sensitive and selective for detecting changes in catecholamine levels in aqueous buffer, human plasma, and cellular models of neuronal differentiation and Parkinson's disease. This new catecholamine sensing strategy features chemical reactivity as part of small molecule recognition as opposed to the conventional use of a well-designed host for reversible binding.
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Affiliation(s)
- Ka Yan Tong
- The University of Hong Kong , State Key Laboratory for Synthetic Chemistry , Department of Chemistry , Pokfulam Road , P. R. China .
| | - Jia Zhao
- School of Chinese Medicine , The University of Hong Kong , 10 Sassoon Road, Pokfulam , Hong Kong , P. R. China
| | - Chun-Wai Tse
- The University of Hong Kong , State Key Laboratory for Synthetic Chemistry , Department of Chemistry , Pokfulam Road , P. R. China .
| | - Pui-Ki Wan
- The University of Hong Kong , State Key Laboratory for Synthetic Chemistry , Department of Chemistry , Pokfulam Road , P. R. China .
| | - Jianhui Rong
- School of Chinese Medicine , The University of Hong Kong , 10 Sassoon Road, Pokfulam , Hong Kong , P. R. China
| | - Ho Yu Au-Yeung
- The University of Hong Kong , State Key Laboratory for Synthetic Chemistry , Department of Chemistry , Pokfulam Road , P. R. China .
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7
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Kim T, Moon D, Park JH, Yang H, Cho S, Park TH, Ahn DJ. Visual detection of odorant geraniol enabled by integration of a human olfactory receptor into polydiacetylene/lipid nano-assembly. NANOSCALE 2019; 11:7582-7587. [PMID: 30964490 DOI: 10.1039/c9nr00249a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A new polydiacetylene lipid/human olfactory receptor nano-assembly was fabricated for the visual detection of an odorant for the first time. The assembly consisted of phospholipid-mixed polydiacetylenes (PDAs) and human olfactory receptors (hORs) in detergent micelles. To overcome the limitations of bioelectronic noses, hOR-embedded chromatic complexes (PDA/hORs) were developed, introducing PDAs that showed color and fluorescence transitions against various stimuli. The chromatic nanocomplexes reacted with target molecules, showing a fluorescence intensity increase in a dose-dependent manner and target selectivity among various odorants. As a result, a color transition of the assembly from blue to purple occurred, allowing the visual detection of the odorant geraniol. Through circular dichroism (CD) spectroscopy and a tryptophan fluorescence quenching method, the structural and functional properties of the hORs embedded in the complexes were confirmed. Based on this first work, future array devices, integrating multiple nano-assemblies, can be substantiated and utilized in environmental assessment and analysis of food quality.
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Affiliation(s)
- Taegon Kim
- Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Korea.
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8
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Wu Y, Yu W, Yang B, Li P. Self-assembled two-dimensional gold nanoparticle film for sensitive nontargeted analysis of food additives with surface-enhanced Raman spectroscopy. Analyst 2018; 143:2363-2368. [DOI: 10.1039/c8an00540k] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
CTAB-functionalized Au NP film as SERS active substrate prepared by the evaporation-driven self-assembly strategy demonstrated high sensitivity and reproducibility for the detection of different food additives.
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Affiliation(s)
- Yiping Wu
- Department of Chemical and Materials Engineering
- Hefei University
- Hefei
- Anhui
- China
| | - Wenfang Yu
- Department of Chemical and Materials Engineering
- Hefei University
- Hefei
- Anhui
- China
| | - Benhong Yang
- Department of Chemical and Materials Engineering
- Hefei University
- Hefei
- Anhui
- China
| | - Pan Li
- Institute of Intelligent Machines
- Chinese Academy of Sciences
- Hefei
- China
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9
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Lee CG, Kang S, Oh J, Eom MS, Oh J, Kim MG, Lee WS, Hong S, Han MS. A colorimetric and fluorescent chemosensor for detection of Hg2+ using counterion exchange of cationic polydiacetylene. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.09.082] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Jiang H, Hu XY, Schlesiger S, Li M, Zellermann E, Knauer SK, Schmuck C. Morphology-Dependent Cell Imaging by Using a Self-Assembled Diacetylene Peptide Amphiphile. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708168] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hao Jiang
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
| | - Xiao-Yu Hu
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; 210023 Nanjing China
| | - Stefanie Schlesiger
- Institute for Microbiology; University of Duisburg-Essen; 45141 Essen Germany
| | - Mao Li
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
| | - Eilo Zellermann
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
| | - Shirley K. Knauer
- Institute for Microbiology; University of Duisburg-Essen; 45141 Essen Germany
| | - Carsten Schmuck
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
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11
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Jiang H, Hu XY, Schlesiger S, Li M, Zellermann E, Knauer SK, Schmuck C. Morphology-Dependent Cell Imaging by Using a Self-Assembled Diacetylene Peptide Amphiphile. Angew Chem Int Ed Engl 2017; 56:14526-14530. [DOI: 10.1002/anie.201708168] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/13/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Hao Jiang
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
| | - Xiao-Yu Hu
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
- Key Laboratory of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; 210023 Nanjing China
| | - Stefanie Schlesiger
- Institute for Microbiology; University of Duisburg-Essen; 45141 Essen Germany
| | - Mao Li
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
| | - Eilo Zellermann
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
| | - Shirley K. Knauer
- Institute for Microbiology; University of Duisburg-Essen; 45141 Essen Germany
| | - Carsten Schmuck
- Institute for Organic Chemistry; University of Duisburg-Essen; 45141 Essen Germany
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12
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Molecular recognition of sulfonatocalixarene with organic cations at the self-assembled interface: a thermodynamic investigation. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.12.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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13
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Shim J, Kim B, Kim JM. Aminopyridine-containing supramolecular polydiacetylene: film formation, thermochromism and micropatterning. Supramol Chem 2016. [DOI: 10.1080/10610278.2016.1243792] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jina Shim
- Department of Chemical Engineering, Hanyang University, Seoul, Korea
| | - Bubsung Kim
- Department of Chemical Engineering, Hanyang University, Seoul, Korea
| | - Jong-Man Kim
- Department of Chemical Engineering, Hanyang University, Seoul, Korea
- Institute of Nano Science and Technology, Hanyang University, Seoul, Korea
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14
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Xing P, Zhao Y. Multifunctional Nanoparticles Self-Assembled from Small Organic Building Blocks for Biomedicine. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:7304-7339. [PMID: 27273862 DOI: 10.1002/adma.201600906] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 03/17/2016] [Indexed: 06/06/2023]
Abstract
Supramolecular self-assembly shows significant potential to construct responsive materials. By tailoring the structural parameters of organic building blocks, nanosystems can be fabricated, whose performance in catalysis, energy storage and conversion, and biomedicine has been explored. Since small organic building blocks are structurally simple, easily modified, and reproducible, they are frequently employed in supramolecular self-assembly and materials science. The dynamic and adaptive nature of self-assembled nanoarchitectures affords an enhanced sensitivity to the changes in environmental conditions, favoring their applications in controllable drug release and bioimaging. Here, recent significant research advancements of small-organic-molecule self-assembled nanoarchitectures toward biomedical applications are highlighted. Functionalized assemblies, mainly including vesicles, nanoparticles, and micelles are categorized according to their topological morphologies and functions. These nanoarchitectures with different topologies possess distinguishing advantages in biological applications, well incarnating the structure-property relationship. By presenting some important discoveries, three domains of these nanoarchitectures in biomedical research are covered, including biosensors, bioimaging, and controlled release/therapy. The strategies regarding how to design and characterize organic assemblies to exhibit biomedical applications are also discussed. Up-to-date research developments in the field are provided and research challenges to be overcome in future studies are revealed.
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Affiliation(s)
- Pengyao Xing
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore
- School of Chemistry and Chemical Engineering and Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, Shandong University, Jinan, 250100, P. R. China
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore.
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
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15
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Unidirectional Threading into a Bowl-Shaped Macrocyclic Trimer of Boron-Dipyrrin Complexes through Multipoint Recognition. Angew Chem Int Ed Engl 2016; 55:9606-9. [DOI: 10.1002/anie.201603821] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Indexed: 11/07/2022]
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16
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Nakamura T, Yamaguchi G, Nabeshima T. Unidirectional Threading into a Bowl-Shaped Macrocyclic Trimer of Boron-Dipyrrin Complexes through Multipoint Recognition. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603821] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Takashi Nakamura
- Graduate School of Pure and Applied Sciences and Tsukuba Research Center for Interdisciplinary Materials Science (TIMS); University of Tsukuba; 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
| | - Gento Yamaguchi
- Graduate School of Pure and Applied Sciences and Tsukuba Research Center for Interdisciplinary Materials Science (TIMS); University of Tsukuba; 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
| | - Tatsuya Nabeshima
- Graduate School of Pure and Applied Sciences and Tsukuba Research Center for Interdisciplinary Materials Science (TIMS); University of Tsukuba; 1-1-1 Tennodai Tsukuba Ibaraki 305-8571 Japan
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17
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Lee S, Cheng H, Chi M, Xu Q, Chen X, Eom CY, James TD, Park S, Yoon J. Sensing and antibacterial activity of imidazolium-based conjugated polydiacetylenes. Biosens Bioelectron 2016; 77:1016-9. [DOI: 10.1016/j.bios.2015.10.090] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 10/26/2015] [Accepted: 10/30/2015] [Indexed: 01/07/2023]
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18
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Park J, Ku SK, Seo D, Hur K, Jeon H, Shvartsman D, Seok HK, Mooney DJ, Lee K. Label-free bacterial detection using polydiacetylene liposomes. Chem Commun (Camb) 2016; 52:10346-9. [DOI: 10.1039/c6cc03116a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Label-free bacterial sensors using specific interplay between released-surfactin and polydiacetylene (PDA) liposomes.
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Affiliation(s)
- Jimin Park
- Center for Biomaterials
- Korea Institute of Science & Technology
- Seoul 02792
- Republic of Korea
| | - Seul Kathy Ku
- School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
| | - Deokwon Seo
- Advanced Institutes of Convergence Technology
- Gyeonggi-do 16229
- Republic of Korea
- Program in Nano Science and Technology
- Graduate School of Convergence Science and Technology
| | - Kahyun Hur
- Center for Computational Science
- Korea Institute of Science & Technology
- Seoul 02792
- Republic of Korea
| | - Hojeong Jeon
- Center for Biomaterials
- Korea Institute of Science & Technology
- Seoul 02792
- Republic of Korea
| | - Dmitry Shvartsman
- School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
| | - Hyun-Kwang Seok
- Center for Biomaterials
- Korea Institute of Science & Technology
- Seoul 02792
- Republic of Korea
| | - David J. Mooney
- School of Engineering and Applied Sciences
- Harvard University
- Cambridge
- USA
- Wyss Institute for Biologically Inspired Engineering
| | - Kangwon Lee
- Advanced Institutes of Convergence Technology
- Gyeonggi-do 16229
- Republic of Korea
- Program in Nano Science and Technology
- Graduate School of Convergence Science and Technology
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19
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Enhanced Sensitivity for Hydrogen Peroxide Detection: Polydiacetylene Vesicles with Phenylboronic Acid Head Group. J Fluoresc 2015; 26:121-7. [DOI: 10.1007/s10895-015-1691-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 10/07/2015] [Indexed: 12/28/2022]
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20
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Schneider HJ, Agrawal P, Yatsimirsky AK. Supramolecular complexations of natural products. Chem Soc Rev 2014; 42:6777-800. [PMID: 23703643 DOI: 10.1039/c3cs60069f] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Complexations of natural products with synthetic receptors as well as the use of natural products as host compounds are reviewed, with an emphasis on possible practical uses or on biomedical significance. Applications such as separation, sensing, enzyme monitoring, and protection of natural drugs are first outlined. We then discuss examples of complexes with all important classes of natural compounds, such as amino acids, peptides, nucleosides/nucleotides, carbohydrates, catecholamines, flavonoids, terpenoids/steroids, alkaloids, antibiotics and toxins.
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Affiliation(s)
- Hans-Jörg Schneider
- FR Organische Chemie, Universität des Saarlandes, D 66041 Saarbrücken, Germany.
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21
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Pradhan T, Jung HS, Jang JH, Kim TW, Kang C, Kim JS. Chemical sensing of neurotransmitters. Chem Soc Rev 2014; 43:4684-713. [DOI: 10.1039/c3cs60477b] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This review focuses on the chemosensors for neurotransmitters published for the last 12 years, covering biogenic amines (dopamine, epinephrine, norepinephrine, serotonin, histamine and acetylcholine), amino acids (glutamate, aspartate, GABA, glycine and tyrosine), and adenosine.
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Affiliation(s)
- Tuhin Pradhan
- Department of Chemistry
- Korea University
- Seoul 130-701, Korea
- Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology
- and Department of Chemistry
| | - Hyo Sung Jung
- Department of Chemistry
- Korea University
- Seoul 130-701, Korea
| | - Joo Hee Jang
- Department of Chemistry
- Korea University
- Seoul 130-701, Korea
| | - Tae Woo Kim
- The East-West Medical Science
- Kyung Hee University
- Yongin 446-701, Korea
| | - Chulhun Kang
- The East-West Medical Science
- Kyung Hee University
- Yongin 446-701, Korea
| | - Jong Seung Kim
- Department of Chemistry
- Korea University
- Seoul 130-701, Korea
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22
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Lee S, Cho Y, Ye BU, Baik JM, Kim MH, Yoon J. Unprecedented colorimetric responses of polydiacetylenes driven by plasma induced polymerization and their patterning applications. Chem Commun (Camb) 2014; 50:12447-9. [DOI: 10.1039/c4cc03511a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this communication, we report that polydiacetylenes (PDAs) can be alternatively prepared via a plasma induced polymerization process.
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Affiliation(s)
- Songyi Lee
- Department of Chemistry and Nano Science
- Global Top 5 Research Program
- Ewha Womans University
- Seoul, Korea
| | - Yukyung Cho
- Department of Chemistry and Nano Science
- Global Top 5 Research Program
- Ewha Womans University
- Seoul, Korea
| | - Byeong Uk Ye
- School of Mechanical and Advanced Materials Engineering
- KIST-UNIST-Ulsan Centre for Convergent Materials
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan, Korea
| | - Jeong Min Baik
- School of Mechanical and Advanced Materials Engineering
- KIST-UNIST-Ulsan Centre for Convergent Materials
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan, Korea
| | - Myung Hwa Kim
- Department of Chemistry and Nano Science
- Global Top 5 Research Program
- Ewha Womans University
- Seoul, Korea
| | - Juyoung Yoon
- Department of Chemistry and Nano Science
- Global Top 5 Research Program
- Ewha Womans University
- Seoul, Korea
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23
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Rodionov PV, Veselova IA, Shekhovtsova TN. Optical sensors for determining phenolic compounds with different structures. JOURNAL OF ANALYTICAL CHEMISTRY 2013. [DOI: 10.1134/s1061934813110130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hettie KS, Liu X, Gillis KD, Glass TE. Selective catecholamine recognition with NeuroSensor 521: a fluorescent sensor for the visualization of norepinephrine in fixed and live cells. ACS Chem Neurosci 2013; 4:918-23. [PMID: 23527575 DOI: 10.1021/cn300227m] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
A method for the selective labeling and imaging of catecholamines in live and fixed secretory cells is reported. The method integrates a tailored approach using a novel fluorescence-based turn-on molecular sensor (NeuroSensor 521) that can exploit the high concentration of neurotransmitters and acidic environment within secretory vesicles for the selective recognition of norepinephrine and dopamine. The utility of the method was demonstrated by selectively labeling and imaging norepinephrine in secretory vesicles such that discrimination between norepinephrine- and epinephrine-enriched populations of chromaffin cells was observed. This method was validated in fixed cells by co-staining with an anti-PNMT antibody.
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Affiliation(s)
- Kenneth S. Hettie
- Department
of Chemistry, ‡Dalton Cardiovascular Research Center, §Biological Engineering, and ∥Department of
Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri 65211, United States
| | - Xin Liu
- Department
of Chemistry, ‡Dalton Cardiovascular Research Center, §Biological Engineering, and ∥Department of
Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri 65211, United States
| | - Kevin D. Gillis
- Department
of Chemistry, ‡Dalton Cardiovascular Research Center, §Biological Engineering, and ∥Department of
Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri 65211, United States
| | - Timothy E. Glass
- Department
of Chemistry, ‡Dalton Cardiovascular Research Center, §Biological Engineering, and ∥Department of
Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri 65211, United States
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25
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An acetylene zipper—Sonogashira reaction sequence for the efficient synthesis of conjugated arylalkadiynols. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.02.066] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Bernitzki K, Maue M, Schrader T. Artificial signal transduction with primary and secondary messengers. Chemistry 2012; 18:13412-7. [PMID: 22961842 DOI: 10.1002/chem.201200623] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Indexed: 11/07/2022]
Abstract
The complete, entirely artificial, signal-transduction process was realized with a pair of tailored transmembrane units that were equipped with receptor- and reactive sites at both amphiphilic ends. Thus, docking of the primary messenger, transmission of the signal, and release of the secondary messenger could all be imitated in a single experimental setup. The system imitates the signaling principle of receptor tyrosine kinases and employs bisphosphonate head-groups for oligoamine-recognition and a pair of thiol nucleophiles and pyridine disulfide tail-groups for intravesicle S(N)2 displacement. This system operates in a unidirectional fashion, does not suffer from intervesicle competition, and is highly sensitive towards the lipid composition of the membrane and the nature of the primary messenger.
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Affiliation(s)
- Kai Bernitzki
- Department of Chemistry, University of Duisburg-Essen, Universitätsstrasse 7, 45117 Essen, Germany
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27
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Chen X, Zhou G, Peng X, Yoon J. Biosensors and chemosensors based on the optical responses of polydiacetylenes. Chem Soc Rev 2012; 41:4610-30. [PMID: 22569480 DOI: 10.1039/c2cs35055f] [Citation(s) in RCA: 267] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Polydiacetylenes (PDAs), a family of conjugated polymers, have very unique electrical and optical properties. Upon environmental stimulation, such as by viruses, proteins, DNAs, metal ions, organic molecules etc., the blue PDAs can undergo a colorimetric transition from blue to red, which is accompanied by a fluorescence enhancement. Since the first report on polymerized diacetylene molecules as sensors of influenza virus, the development of efficient sensory systems based on PDAs continues to be of great interest. This tutorial review highlights the recent advances in bio- and chemo-sensors derived from polydiacetylenes.
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Affiliation(s)
- Xiaoqiang Chen
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
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28
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Jeon H, Lee S, Li Y, Park S, Yoon J. Conjugated polydiacetylenes bearing quaternary ammonium groups as a dual colorimetric and fluorescent sensor for ATP. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm14996f] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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29
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Pumtang S, Siripornnoppakhun W, Sukwattanasinitt M, Ajavakom A. Solvent colorimetric paper-based polydiacetylene sensors from diacetylene lipids. J Colloid Interface Sci 2011; 364:366-72. [DOI: 10.1016/j.jcis.2011.08.074] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 08/26/2011] [Accepted: 08/29/2011] [Indexed: 10/17/2022]
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30
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Chen JL, Yan XP, Meng K, Wang SF. Graphene Oxide Based Photoinduced Charge Transfer Label-Free Near-Infrared Fluorescent Biosensor for Dopamine. Anal Chem 2011; 83:8787-93. [DOI: 10.1021/ac2023537] [Citation(s) in RCA: 243] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Jin-Long Chen
- State Key Laboratory of Medicinal Chemical Biology, and Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiu-Ping Yan
- State Key Laboratory of Medicinal Chemical Biology, and Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Kang Meng
- State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
| | - Shu-Feng Wang
- State Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
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31
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Givelet C, Bibal B. A simple ionic triphenylene receptor for catecholamines, serotonin and D-glucosamine in buffered water. Org Biomol Chem 2011; 9:7457-60. [PMID: 21912789 DOI: 10.1039/c1ob06099f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The combination of hydrophobic effects and ionic pairing within a triphenylene-based receptor were exploited for the binding of biological phenylethylamines, serotonin and D-glucosamine in phosphate buffered water.
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Affiliation(s)
- Cécile Givelet
- Université de Bordeaux, Institut des Sciences Moléculaires-UMR CNRS 5255, 351 cours de la Libération, 33405 Talence, France
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32
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Lim MC, Shin YJ, Jeon TJ, Kim HY, Kim YR. Microbead-assisted PDA sensor for the detection of genetically modified organisms. Anal Bioanal Chem 2011; 400:777-85. [PMID: 21387154 DOI: 10.1007/s00216-011-4832-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Revised: 02/20/2011] [Accepted: 02/21/2011] [Indexed: 10/18/2022]
Abstract
A simple and sensitive approach for the detection of marker protein, phosphinothricin acetyltransferase, from genetically modified crops was developed based on the colorimetric transition of polydiacetylene (PDA) vesicles in combination with silica microbeads. PDAs have attracted a great deal of interests as a transducing material due to their special features that allow colorimetric response to sensory signals, as well as their inherent simplicity. However, most PDA-based biosensors require additional analytical equipment such as a fluorescence microscope or UV-Vis spectrometer. In this study, we report a new approach to increase the degree of color transition by coupling antibody-conjugated PDA vesicles with silica microbeads in an effort to monitor the results with the unaided eye or simple RGB analysis. By immobilizing PDA vesicles on silica microbeads, we were able to overcome the disadvantages of colloidal PDA-based sensors and increase the degree of colorimetric changes in response to target molecules to a concentration as low as 20 nM. The additional stresses were given to PDA vesicles by antigen-antibody bridging of PDA vesicles coupled with microbeads, resulting in enhanced blue-red color transition. All the results showed that PDA vesicles in conjunction with silica microbeads will be a promising transducing material for the detection of target proteins in diagnostic and biosensing applications.
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Affiliation(s)
- Min-Cheol Lim
- Institute of Life Sciences and Resources & Department of Food Science and Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, South Korea
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33
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Jang YS, Yoon B, Kim JM. Colorimetric detection of aluminium ion based on conjugated polydiacetylene supramolecules. Macromol Res 2011. [DOI: 10.1007/s13233-011-0102-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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34
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Lee KM, Moon JH, Jeon H, Chen X, Kim HJ, Kim S, Kim SJ, Lee JY, Yoon J. Diverse colorimetric changes of polydiacetylenes with cationic surfactants and their mechanistic studies. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12818c] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Xu Q, Yoon J. Visual detection of dopamine and monitoring tyrosinase activity using a pyrocatechol violet–Sn4+ complex. Chem Commun (Camb) 2011; 47:12497-9. [DOI: 10.1039/c1cc15587c] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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36
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Kim G, Song S, Lee J, Kim JM. Size-controlled fabrication of supramolecular vesicles for the construction of conjugated polymer sensors with enhanced optical properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:17840-17842. [PMID: 21053986 DOI: 10.1021/la103920p] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Polymerizable supramolecular monomer vesicles are readily fabricated by employing a hydrodynamic focusing method on a microfluidic chip. The polymerized diacetylenene nanovesicles, generated using the microfluidic method, display an improved fluorescence property compared to those prepared by employing a conventional bulk method. The flexibility of the vesicle size control by manipulating the flow conditions is another significant feature of the new microfluidic approach.
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Affiliation(s)
- Gangjune Kim
- Department of Mechanical Engineering, Hanyang University, Seoul 133-791, Korea
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37
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Sheynis T, Jelinek R. Lipid-Induced Calcitonin Fibrillation Blocks Membrane Interactions of a Peptide Antibiotic. J Phys Chem B 2010; 114:15530-5. [DOI: 10.1021/jp1072473] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tania Sheynis
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Raz Jelinek
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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38
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Gruber B, Stadlbauer S, Späth A, Weiss S, Kalinina M, König B. Modulare Chemosensoren auf Basis selbstorganisierter Vesikelmembranen mit künstlichen Rezeptoren und fluoreszierenden Reportergruppen. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201001101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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39
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Gruber B, Stadlbauer S, Späth A, Weiss S, Kalinina M, König B. Modular Chemosensors from Self-Assembled Vesicle Membranes with Amphiphilic Binding Sites and Reporter Dyes. Angew Chem Int Ed Engl 2010; 49:7125-8. [DOI: 10.1002/anie.201001101] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Yoo IS, Yoon BR, Song SM. Probing Temperature on a Microfluidic Chip with Thermosensitive Conjugated Polymer Supramolecules. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.6.1753] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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41
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42
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Eo SH, Won KJ, Song SM, Yoon BR, Kim JM. Hemoglobin Detection on a Microfluidic Sensor Chip with a Partially Conjugated Polymer. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.02.467] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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43
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Hwang HJ, Song SM, Kim JM. Reversible Modulation of Fluorescence Signals of Conjugated Polydiacetylene Supramolecules in a Microfluidic Sensor Chip. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.02.273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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44
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Chen X, Kang S, Kim M, Kim J, Kim Y, Kim H, Chi B, Kim SJ, Lee J, Yoon J. Thin-Film Formation of Imidazolium-Based Conjugated Polydiacetylenes and Their Application for Sensing Anionic Surfactants. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200905041] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Chen X, Kang S, Kim M, Kim J, Kim Y, Kim H, Chi B, Kim SJ, Lee J, Yoon J. Thin-Film Formation of Imidazolium-Based Conjugated Polydiacetylenes and Their Application for Sensing Anionic Surfactants. Angew Chem Int Ed Engl 2010; 49:1422-5. [DOI: 10.1002/anie.200905041] [Citation(s) in RCA: 252] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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46
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Lee K, Povlich LK, Kim J. Recent advances in fluorescent and colorimetric conjugated polymer-based biosensors. Analyst 2010; 135:2179-89. [DOI: 10.1039/c0an00239a] [Citation(s) in RCA: 146] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Yarimaga O, Lee S, Kim JM, Choi YK. Fabrication of Patterned Polydiacetylene Composite Films Using a Replica-Molding (REM) Technique. Macromol Rapid Commun 2009; 31:270-4. [DOI: 10.1002/marc.200900662] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2009] [Indexed: 11/10/2022]
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48
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You X, Chen X, Zou G, Su W, Zhang Q, He P. Colorimetric response of azobenzene-terminated polydiacetylene vesicles under thermal and photic stimuli. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.10.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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49
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Abstract
Supramolecular chemistry has expanded dramatically in recent years both in terms of potential applications and in its relevance to analogous biological systems. The formation and function of supramolecular complexes occur through a multiplicity of often difficult to differentiate noncovalent forces. The aim of this Review is to describe the crucial interaction mechanisms in context, and thus classify the entire subject. In most cases, organic host-guest complexes have been selected as examples, but biologically relevant problems are also considered. An understanding and quantification of intermolecular interactions is of importance both for the rational planning of new supramolecular systems, including intelligent materials, as well as for developing new biologically active agents.
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Affiliation(s)
- Hans-Jörg Schneider
- Organische Chemie, Universität des Saarlandes, 66041 Saarbrücken, Deutschland.
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50
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Yoon J, Azizan KAB, Yoo HO, Okada S, Kim JM. Unusual photopolymerization behavior of amino Acid-derived polydiacetylene supramolecules. Macromol Rapid Commun 2009; 30:981-5. [PMID: 21706558 DOI: 10.1002/marc.200900016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2009] [Revised: 02/27/2009] [Accepted: 03/02/2009] [Indexed: 11/10/2022]
Abstract
UV-irradiation of aqueous suspensions of amino acid-derived amphiphilic diacetylene supramolecules promotes a process that involves initial formation of species that absorb at 640 nm followed by the generation of polymers that have longer wavelength (686 nm) absorbance. The initially formed intermediate polydiacetylenes display substantial colorimetric reversibility while the long wavelength absorbing polymers show irreversible thermochromism during heating and cooling cycles. The long wavelength absorbing polydiacetylenes, formed from amino acid-derived amphiphilic diacetylene supramolecules, are suggested to have more planer backbone structures that allow more efficient overlap of the conjugated p-orbitals.
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Affiliation(s)
- Jaewon Yoon
- Department of Chemical Engineering, Hanyang University, Seoul 133-791, Korea
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