1
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Ruthenium based terpyridine complexes as both luminescent and NLO materials. Polyhedron 2023. [DOI: 10.1016/j.poly.2023.116299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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2
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Balzani V, Ceroni P, Credi A, Venturi M. Ruthenium tris(bipyridine) complexes: Interchange between photons and electrons in molecular-scale devices and machines. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213758] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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3
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Maroto-Diaz M, Sanz del Olmo N, Garcia-Gallego S, Gómez R, Ortega P, de la Mata FJ. Synthesis and structural characterization of carbosilane ruthenium(II) metallodendrons containing cymene units. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.120942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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4
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Interfacial charge transport studies and fabrication of high performance DSSC with ethylene cored unsymmetrical dendrimers as quasi electrolytes. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.05.119] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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5
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Chervonova UV, Gruzdev MS, Kolker AM, Akopova OB. Structure and phase transitions of azomethine biligand complexes of iron(III) based on 3,4,5-tri(tetradecyloxy)benzoyloxy-4-salicylidene-N′-ethyl-N-ethylenediamine. J STRUCT CHEM+ 2016. [DOI: 10.1134/s0022476616030094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Draghici B, Ilies MA. Synthetic Nucleic Acid Delivery Systems: Present and Perspectives. J Med Chem 2015; 58:4091-130. [DOI: 10.1021/jm500330k] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Bogdan Draghici
- Department
of Pharmaceutical Sciences and Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, 3307 North Broad Street, Philadelphia, Pennsylvania 19140, United States
| | - Marc A. Ilies
- Department
of Pharmaceutical Sciences and Moulder Center for Drug Discovery Research, Temple University School of Pharmacy, 3307 North Broad Street, Philadelphia, Pennsylvania 19140, United States
- Temple Materials Institute, 1803 North Broad Street, Philadelphia, Pennsylvania 19122, United States
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7
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Chen LJ, Zhao GZ, Jiang B, Sun B, Wang M, Xu L, He J, Abliz Z, Tan H, Li X, Yang HB. Smart Stimuli-Responsive Spherical Nanostructures Constructed from Supramolecular Metallodendrimers via Hierarchical Self-Assembly. J Am Chem Soc 2014; 136:5993-6001. [DOI: 10.1021/ja500152a] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Li-Jun Chen
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, Shanghai 200062, P. R. China
| | - Guang-Zhen Zhao
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, Shanghai 200062, P. R. China
| | - Bo Jiang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, Shanghai 200062, P. R. China
| | - Bin Sun
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, Shanghai 200062, P. R. China
| | - Ming Wang
- Department
of Chemistry and Biochemistry, Texas State University, San Marcos, Texas 78666, United States
| | - Lin Xu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, Shanghai 200062, P. R. China
| | - Jiuming He
- Institute
of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China
| | - Zeper Abliz
- Institute
of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, P. R. China
| | - Hongwei Tan
- Department
of Chemistry, Beijing Normal University, Beijing 100050, P. R. China
| | - Xiaopeng Li
- Department
of Chemistry and Biochemistry, Texas State University, San Marcos, Texas 78666, United States
| | - Hai-Bo Yang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, Department
of Chemistry, East China Normal University, Shanghai 200062, P. R. China
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8
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Meng W, League AB, Ronson TK, Clegg JK, Isley WC, Semrouni D, Gagliardi L, Cramer CJ, Nitschke JR. Empirical and Theoretical Insights into the Structural Features and Host–Guest Chemistry of M8L4 Tube Architectures. J Am Chem Soc 2014; 136:3972-80. [DOI: 10.1021/ja412964r] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Wenjing Meng
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Aaron B. League
- Department of Chemistry, Chemical Theory Center, and Supercomputer
Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Tanya K. Ronson
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Jack K. Clegg
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - William C. Isley
- Department of Chemistry, Chemical Theory Center, and Supercomputer
Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - David Semrouni
- Department of Chemistry, Chemical Theory Center, and Supercomputer
Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Laura Gagliardi
- Department of Chemistry, Chemical Theory Center, and Supercomputer
Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Christopher J. Cramer
- Department of Chemistry, Chemical Theory Center, and Supercomputer
Institute, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Jonathan R. Nitschke
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
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9
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Nath D, Banerjee P. Green nanotechnology - a new hope for medical biology. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2013; 36:997-1014. [PMID: 24095717 DOI: 10.1016/j.etap.2013.09.002] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 08/29/2013] [Accepted: 09/04/2013] [Indexed: 05/18/2023]
Abstract
The development of eco-friendly technologies in material synthesis is of considerable importance to expand their biological applications. Nowadays, a variety of green nanoparticles with well-defined chemical composition, size, and morphology have been synthesized by different methods and their applications in many cutting-edge technological areas have been explored. This review highlights the classification of nanoparticles giving special emphasis on biosynthesis of metal nanoparticle by viable organisms. It also focuses on the applications of these biosynthesized nanoparticles in a wide spectrum of potential areas of medical biology including catalysis, targeted drug delivery, cancer treatment, antibacterial agents and as biosensors.
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Affiliation(s)
- Debjani Nath
- Cytogenetics and Molecular Biology Laboratory, Department of Zoology, University of Kalyani, Nadia, West Bengal, India.
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10
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Chiad K, Grill M, Baumgarten M, Klapper M, Müllen K. Guest Uptake by Rigid Polyphenylene Dendrimers Acting As a Unique Dendritic Box in Solution Proven by Isothermal Calorimetry. Macromolecules 2013. [DOI: 10.1021/ma3024848] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Khalid Chiad
- Max Planck Institute for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
| | - Matthias Grill
- Max Planck Institute for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
| | - Martin Baumgarten
- Max Planck Institute for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
| | - Markus Klapper
- Max Planck Institute for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg
10, 55128 Mainz, Germany
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11
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Columnar and smectic self-assembly deriving from non ionic amphiphilic hyperbranched polyethylene imine polymers and induced by hydrogen bonding and segregation into polar and non polar parts. POLYMER 2013. [DOI: 10.1016/j.polymer.2012.12.023] [Citation(s) in RCA: 11] [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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12
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Pogoreltsev A, Solel E, Pappo D, Keinan E. Deca-heterosubstituted corannulenes. Chem Commun (Camb) 2012; 48:5425-7. [DOI: 10.1039/c2cc31801f] [Citation(s) in RCA: 14] [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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13
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Lijanova IV, Monter RG, Likhanova NV, Garibay FV, Olivares XO. Synthesis of PAMAM dendrimers with a resorcinarene core and their metal complexation. Supramol Chem 2011. [DOI: 10.1080/10610278.2011.622385] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Irina V. Lijanova
- a Instituto Politécnico Nacional, CIITEC, Cerrada Cecati S/N, Colonia Santa Catarina , Azcapotzalco, México DF , 02250 , México
| | - Ramirez G. Monter
- a Instituto Politécnico Nacional, CIITEC, Cerrada Cecati S/N, Colonia Santa Catarina , Azcapotzalco, México DF , 02250 , México
| | - N. V. Likhanova
- b Instituto Mexicano del Petróleo, Dirección de Investigación y Posgrado , Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacan, México DF , 07730 , México
| | - Febles V. Garibay
- b Instituto Mexicano del Petróleo, Dirección de Investigación y Posgrado , Eje Central Lázaro Cárdenas No. 152, Col. San Bartolo Atepehuacan, México DF , 07730 , México
| | - Xometl O.C. Olivares
- c Benemérita Universidad Autónoma de Puebla, Facultad de Ingeniería Química , Av. San Claudio y 18 Sur, Col. San Manuel, Ciudad Universitaria, Puebla , 72570 , México
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14
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Synthesis of glycopeptide dendrimers, dimerization and affinity for Concanavalin A. Bioorg Med Chem 2011; 19:2879-87. [DOI: 10.1016/j.bmc.2011.03.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 03/08/2011] [Accepted: 03/18/2011] [Indexed: 12/17/2022]
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15
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Affiliation(s)
- Peter J. Gittins
- a Department of Chemistry , University of Sheffield , Dainton Building, Brook Hill, Sheffield, S3 7HF, UK
| | - Lance J. Twyman
- a Department of Chemistry , University of Sheffield , Dainton Building, Brook Hill, Sheffield, S3 7HF, UK
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16
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Lee JH, Choi D, Shin EJ. Trans-cis isomerization of arylether dendrimers with azobenzene core and terminal hydroxy groups. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 77:478-484. [PMID: 20621552 DOI: 10.1016/j.saa.2010.06.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Revised: 05/13/2010] [Accepted: 06/04/2010] [Indexed: 05/29/2023]
Abstract
Azobenzene-cored arylether dendrimers 2a-2c with polar hydroxy groups at the periphery have been prepared from hydroboration-oxidation reaction of azobenzene-cored arylether dendrimers 1a-1c with nonpolar vinyl groups at the periphery. Trans-->cis photoisomerization of central azo group has been investigated by UV-vis spectral changes after photolysis. The results show that dendrimers 1a-1c and 2a-2c in methanol/dichloromethane (1/1, v/v) have carried out trans-cis isomerization. Reaction rate for trans-->cis photoisomerization of 2a-2c with polar hydroxy groups increases with increasing generation upon irradiation of 350 nm. On the other hand, the reaction rate of cis-->trans thermal back isomerization for 2a-2c decreases with increasing the generation. This result is somewhat different from that for 1a-1c with nonpolar vinyl groups. Both the reaction rates of trans-->cis photoisomerization and cis-->trans thermal back isomerization for 1a-1c decrease in higher generation.
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Affiliation(s)
- Ji-hye Lee
- Department of Chemistry, Sunchon National University, Suncheon, Jeonnam 540-742, Republic of Korea
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17
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Pappo D, Mejuch T, Reany O, Solel E, Gurram M, Keinan E. Diverse functionalization of corannulene: easy access to pentagonal superstructure. Org Lett 2010; 11:1063-6. [PMID: 19193048 DOI: 10.1021/ol8028127] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A variety of functionalized penta-arylcorannulene derivatives were prepared in high yields and high chemoselectivity by a cross-coupling reaction between sym-pentachlorocorannulene and substituted arylboronic acids using Fu's Pd(0) catalyst. This approach provides a general entry to penta-substituted corannulene derivatives, which are useful building blocks for various structures of high complexity, such as pentagonal dendrimers, synthetic capsids, and discotic liquid crystals. This was demonstrated here by the facile synthesis of a third generation pentagonal dendrimer.
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Affiliation(s)
- Doron Pappo
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
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18
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Johansson EMV, Dubois J, Darbre T, Reymond JL. Glycopeptide dendrimer colchicine conjugates targeting cancer cells. Bioorg Med Chem 2010; 18:6589-97. [PMID: 20674369 DOI: 10.1016/j.bmc.2010.04.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 03/15/2010] [Accepted: 04/07/2010] [Indexed: 02/08/2023]
Abstract
Screening of a 65,536-member one-bead-one-compound (OBOC) combinatorial library of glycopeptide dendrimers of structure ((betaGal)(n)(+1)X(8)X(7)X(6)X(5))(2)DapX(4)X(3)X(2)X(1)(beta-Gal)(m) (betaGal=beta-galactosyl-thiopropionic acid, X(8-1)=variable amino acids, Dap=l-2,3-diaminopropionic acid, n, m=0, or 1 if X(8)=Lys resp. X(1)=Lys) for binding of Jurkat cells to the library beads in cell culture, resynthesis and testing lead to the identification of dendrimer J1 (betaGal-Gly-Arg-His-Ala)(2)Dap-Thr-Arg-His-Asp-CysNH(2) and related analogues as delivery vehicles. Cell targeting is evidenced by FACS with fluorescein conjugates such as J1F. The colchicine conjugate J1C is cytotoxic with LD(50)=1.5 microM. The beta-galactoside groups are necessary for activity, as evidenced by the absence of cell-binding and cytotoxicity in the non-galactosylated, acetylated analogue AcJ1F and AcJ1C, respectively. The pentagalactosylated dendrimer J4 betaGal(4)(Lys-Arg-His-Leu)(2)Dap-Thr-Tyr-His-Lys(betaGal)-Cys) selectively labels Jurkat cell as the fluorescein derivative J4F, but its colchicine conjugate J4C lacks cytotoxicity. Tubulin binding assays show that the colchicine dendrimer conjugates do not bind to tubulin, implying intracellular degradation of the dendrimers releasing the active drug.
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Affiliation(s)
- Emma M V Johansson
- Department of Chemistry and Biochemistry, University of Berne, Freiestrasse 3, CH-3012 Berne, Switzerland
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19
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Alivertis D, Paraskevopoulos G, Theodorou V, Skobridis K. Dendritic effects of crown ether-functionalized dendrimers on the solvent extraction of metal ions. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.08.053] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Rosen BM, Wilson CJ, Wilson DA, Peterca M, Imam MR, Percec V. Dendron-Mediated Self-Assembly, Disassembly, and Self-Organization of Complex Systems. Chem Rev 2009; 109:6275-540. [DOI: 10.1021/cr900157q] [Citation(s) in RCA: 1066] [Impact Index Per Article: 71.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Brad M. Rosen
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Christopher J. Wilson
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Daniela A. Wilson
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Mohammad R. Imam
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
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21
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Gershoni-Poranne R, Pappo D, Solel E, Keinan E. Corannulene Ethers via Ullmann Condensation. Org Lett 2009; 11:5146-9. [DOI: 10.1021/ol902352k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Renana Gershoni-Poranne
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel, and Department of Molecular Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Doron Pappo
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel, and Department of Molecular Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Ephrath Solel
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel, and Department of Molecular Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
| | - Ehud Keinan
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel, and Department of Molecular Biology and the Skaggs Institute for Chemical Biology, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037
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23
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Javor S, Reymond JL. Structure-Activity Relationship Studies in Single-Site Esterase Peptide Dendrimers. Isr J Chem 2009. [DOI: 10.1560/ijc.49.1.129] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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24
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Percec V, Imam MR, Peterca M, Cho WD, Heiney PA. Self-Assembling Dendronized Dendrimers. Isr J Chem 2009. [DOI: 10.1560/ijc.49.1.55] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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25
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Maillard N, Darbre T, Reymond JL. Identification of Catalytic Peptide Dendrimers by “Off-Bead” in Silica High-Throughput Screening of Combinatorial Libraries. ACTA ACUST UNITED AC 2009; 11:667-75. [DOI: 10.1021/cc9000289] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Noélie Maillard
- Department of Chemistry and Biochemistry, University of Berne, Freiestrasse 3, CH-3012, Berne, Switzerland
| | - Tamis Darbre
- Department of Chemistry and Biochemistry, University of Berne, Freiestrasse 3, CH-3012, Berne, Switzerland
| | - Jean-Louis Reymond
- Department of Chemistry and Biochemistry, University of Berne, Freiestrasse 3, CH-3012, Berne, Switzerland
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26
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Kolomiets E, Swiderska M, Kadam R, Johansson EM, Jaeger KE, Darbre T, Reymond JL. Glycopeptide Dendrimers with High Affinity for the Fucose-Binding Lectin LecB fromPseudomonas aeruginosa. ChemMedChem 2009; 4:562-9. [DOI: 10.1002/cmdc.200800380] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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27
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Javor S, Reymond JL. Molecular Dynamics and Docking Studies of Single Site Esterase Peptide Dendrimers. J Org Chem 2009; 74:3665-74. [DOI: 10.1021/jo802743c] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sacha Javor
- Department of Chemistry and Biochemistry, University of Berne, Freiestrasse 3, CH-3012, Berne, Switzerland
| | - Jean-Louis Reymond
- Department of Chemistry and Biochemistry, University of Berne, Freiestrasse 3, CH-3012, Berne, Switzerland
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28
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29
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Ternat C, Ouali L, Sommer H, Fieber W, Velazco MI, Plummer CJG, Kreutzer G, Klok HA, Månson JAE, Herrmann A. Investigation of the Release of Bioactive Volatiles from Amphiphilic Multiarm Star-Block Copolymers by Thermogravimetry and Dynamic Headspace Analysis. Macromolecules 2008. [DOI: 10.1021/ma801366m] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Céline Ternat
- Division Recherche et Développement, Firmenich SA, B.P. 239, CH-1211 Genève 8, Switzerland; Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; and Laboratoire des Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Lahoussine Ouali
- Division Recherche et Développement, Firmenich SA, B.P. 239, CH-1211 Genève 8, Switzerland; Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; and Laboratoire des Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Horst Sommer
- Division Recherche et Développement, Firmenich SA, B.P. 239, CH-1211 Genève 8, Switzerland; Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; and Laboratoire des Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Wolfgang Fieber
- Division Recherche et Développement, Firmenich SA, B.P. 239, CH-1211 Genève 8, Switzerland; Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; and Laboratoire des Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Maria Inés Velazco
- Division Recherche et Développement, Firmenich SA, B.P. 239, CH-1211 Genève 8, Switzerland; Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; and Laboratoire des Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Christopher J. G. Plummer
- Division Recherche et Développement, Firmenich SA, B.P. 239, CH-1211 Genève 8, Switzerland; Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; and Laboratoire des Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Georg Kreutzer
- Division Recherche et Développement, Firmenich SA, B.P. 239, CH-1211 Genève 8, Switzerland; Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; and Laboratoire des Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Harm-Anton Klok
- Division Recherche et Développement, Firmenich SA, B.P. 239, CH-1211 Genève 8, Switzerland; Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; and Laboratoire des Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Jan-Anders E. Månson
- Division Recherche et Développement, Firmenich SA, B.P. 239, CH-1211 Genève 8, Switzerland; Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; and Laboratoire des Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Andreas Herrmann
- Division Recherche et Développement, Firmenich SA, B.P. 239, CH-1211 Genève 8, Switzerland; Laboratoire de Technologie des Composites et Polymères (LTC), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland; and Laboratoire des Polymères (LP), Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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Percec V, Peterca M, Dulcey AE, Imam MR, Hudson SD, Nummelin S, Adelman P, Heiney PA. Hollow Spherical Supramolecular Dendrimers. J Am Chem Soc 2008; 130:13079-94. [DOI: 10.1021/ja8034703] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, and National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8544
| | - Mihai Peterca
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, and National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8544
| | - Andrés E. Dulcey
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, and National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8544
| | - Mohammad R. Imam
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, and National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8544
| | - Steven D. Hudson
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, and National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8544
| | - Sami Nummelin
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, and National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8544
| | - Peter Adelman
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, and National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8544
| | - Paul A. Heiney
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6396, and National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8544
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Victorovna-Lijanova I, Reyes-Valderrama MI, Maldonado JL, Ramos-Ortiz G, Tatiana K, Martínez-García M. Synthesis and cubic nonlinear optical behavior of phenyl and ferrocenyl-ended resorcinarene-based dendrimers. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Chierotti MR, Gobetto R. Solid-state NMR studies of weak interactions in supramolecular systems. Chem Commun (Camb) 2008:1621-34. [PMID: 18368147 DOI: 10.1039/b711551b] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The field of application of solid-state NMR to the study of supramolecular systems is growing rapidly, with many research groups involved in the development of techniques for the study of crystalline and amorphous phases. This Feature Article aims to provide an overview of the recent contributions of our research group to this field, paying particular attention to the study of the weak interactions such as hydrogen bonds in supramolecular systems through solid-state NMR investigations. The structure and dynamic behaviour of selected host-guest systems will be also discussed.
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Affiliation(s)
- Michele R Chierotti
- Università degli Studi di Torino, Dipartimento di Chimica I.F.M, Via P. Giuria 7, 10125 Torino, Italy
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Newkome GR, Shreiner CD. Poly(amidoamine), polypropylenimine, and related dendrimers and dendrons possessing different 1→2 branching motifs: An overview of the divergent procedures. POLYMER 2008. [DOI: 10.1016/j.polymer.2007.10.021] [Citation(s) in RCA: 313] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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35
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Kim SY, Ko YH, Lee JW, Sakamoto S, Yamaguchi K, Kim K. Toward High-Generation Rotaxane Dendrimers That Incorporate a Ring Component on Every Branch: Noncovalent Synthesis of a Dendritic [10]Pseudorotaxane with 13 Molecular Components. Chem Asian J 2007; 2:747-54. [PMID: 17479998 DOI: 10.1002/asia.200700043] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
By taking advantage of the fact that cucurbit[6]uril (CB[6]) forms exceptionally stable host-guest complexes with protonated amines, and that its homologue CB[8] can encapsulate a pair of electron-rich and electron-deficient guest molecules to form a stable 1:1:1 complex, we synthesized a novel dendritic [10]pseudorotaxane, or second-generation rotaxane dendrimer (from a topological point of view), in which 13 molecular components are held together by noncovalent interactions. A triply branched molecule containing an electron-deficient bipyridinium unit on each branch formed a branched [4]pseudorotaxane with 3 equivalents of CB[8]. Addition of 3 equivalents of 2,6-dihydroxynaphthalene produced a first-generation rotaxane dendrimer, which was characterized by NMR spectroscopy and CSI-MS. The reaction of the branched [4]pseudorotaxane with 3 equivalents of a triply branched molecule that has an electron-donor unit at one arm and CB[6]-containing units at the other two gave the dendritic [10]pseudorotaxane, the structure of which was confirmed by NMR spectroscopy, UV/Vis titration experiments, and CSI-MS.
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Affiliation(s)
- Soo-Young Kim
- National Creative Research Initiative Center for Smart Supramolecules and Department of Chemistry, Pohang University of Science and Technology, San 31 Hyojadong, Pohang 790-784, Republic of Korea
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37
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Searching for new host compounds: synthesis and characterization of novel crown ether-functionalized dendrimers. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.04.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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38
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Ternat C, Kreutzer G, Plummer CJG, Nguyen TQ, Herrmann A, Ouali L, Sommer H, Fieber W, Velazco MI, Klok HA, Månson JAE. Amphiphilic Multi-Arm Star-Block Copolymers for Encapsulation of Fragrance Molecules. MACROMOL CHEM PHYS 2007. [DOI: 10.1002/macp.200600449] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Hardy JG, Ashworth I, Brennan C, Smith DK. Dendritic receptors designed to bind polyanions in both organic and aqueous media. Org Biomol Chem 2007; 5:900-6. [PMID: 17340005 DOI: 10.1039/b618063a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper reports the synthesis of dendrons containing a spermine unit at their focal point. The dendritic branching is based on l-lysine building blocks, and has terminal oligo(ethyleneglycol) units on the surface. As a consequence of the solubilising surface groups, these dendrons have high solubility in solvents with widely different polarities (e.g., dichloromethane and water). The protonated spermine unit at the focal point is an effective anion binding fragment and, as such, these dendrons are able to bind to polyanions. This paper demonstrates that polyanions can be bound in both dichloromethane (using a dye solubilisation assay) and in water (competitive ATP binding assay). In organic media the dendritic branching appears to have a pro-active effect on the solubilisation of the dye, with more dye being solubilised by higher generations of dendron. On the other hand, in water the degree of branching has no impact on the anion binding process. We propose that in this case, the spermine unit is effectively solvated by the bulk solvent and the dendritic branching does not need to play an active role in assisting solubility. Dendritic effects on anion binding have therefore been elucidated in different solvents. The dendritic branching plays a pro-active role in providing the anion binding unit with good solubility in apolar solvent media.
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Affiliation(s)
- John G Hardy
- Department of Chemistry, University of York, York, UK YO10 5DD
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40
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Hwang SH, Shreiner CD, Moorefield CN, Newkome GR. Recent progress and applications for metallodendrimers. NEW J CHEM 2007. [DOI: 10.1039/b612656c] [Citation(s) in RCA: 188] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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41
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Sato M, Matsuoka Y, Yamaguchi I. Preparation and properties of novel thermotropic liquid crystalline hyperbranched polyesters composed of five-membered heterocyclic mesogen by A2 + B3 approach. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22054] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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42
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Percec V, Holerca MN, Nummelin S, Morrison JJ, Glodde M, Smidrkal J, Peterca M, Rosen BM, Uchida S, Balagurusamy VSK, Sienkowska MJ, Heiney PA. Exploring and Expanding the Structural Diversity of Self-Assembling Dendrons through Combinations of AB, Constitutional Isomeric AB2, and AB3 Biphenyl-4-Methyl Ether Building Blocks. Chemistry 2006; 12:6216-41. [PMID: 16841348 DOI: 10.1002/chem.200600178] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
General, efficient and inexpensive methods for the synthesis of dendritic building blocks methyl 3',4'-dihydroxybiphenyl-4-carboxylate, 3',5'-dihydroxybiphenyl-4-carboxylate, and methyl 3',4',5'-trihydroxybiphenyl-4-carboxylate were elaborated. In all syntheses the major step involved an inexpensive Ni(II)-catalyzed Suzuki cross-coupling reaction. These three building blocks were employed together with methyl 4'-hydroxybiphenyl-4-carboxylate in a convergent iterative strategy to synthesize seven libraries containing up to three generations of 3',4'-, 3',5'-, and 3',4',5'-substituted biphenyl-4-methyl ether based amphiphilic dendrons. These dendrons self-assemble into supramolecular dendrimers that self-organize into periodic assemblies. Structural and retrostructural analysis of their assemblies demonstrated that these dendrons self-assemble into hollow and non-hollow supramolecular dendrimers exhibiting dimensions of up to twice those reported for architecturally related dendrons based on benzyl ether repeat units. These new dendrons expand the structural diversity and demonstrate the generality of the concept of self-assembling dendrons based on amphiphilic arylmethyl ethers.
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Affiliation(s)
- Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6323, USA.
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McNaughton RL, Mondal S, Nemykin VN, Basu P, Kirk ML. Oxomolybdenum tetrathiolates with sterically encumbering ligands: modeling the effect of a protein matrix on electronic structure and reduction potentials. Inorg Chem 2006; 44:8216-22. [PMID: 16270958 DOI: 10.1021/ic0482281] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The effect of sterically encumbering ligands on the electronic structure of oxomolybdenum tetrathiolate complexes was determined using a combination of electronic absorption and magnetic circular dichroism spectroscopies, complimented by DFT bonding calculations, to understand geometric and electronic structure contributions to reduction potentials. These complexes are rudimentary models for a redox-active metalloenzyme active site in a protein matrix and allow for detailed spectroscopic probing of specific oxomolybdenum-thiolate interactions that are directly relevant to Mo-S(cysteine) bonding in pyranopterin molybdenum enzymes. Data are presented for three para-substituted oxomolybdenum tetrathiolate complexes ([PPh4][MoO(p-SPhCONHCH3)4], [PPh4][MoO(p-SPhCONHC(CH2O(CH2)2CN)3)4], and [PPh4][MoO(p-SPhCONHC(CH2O(CH2)2COOCH2CH3)3)4]). The Mo(V/IV) reduction potentials of the complexes in DMF are -1213, -1251, and -1247 mV, respectively. The remarkably similar electronic absorption and magnetic circular dichroism spectra of these complexes establish that the observed reduction potential differences are not a result of significant changes in the electronic structure of the [MoOS4]- cores as a function of the larger ligand size. We provide evidence that these reduction potential differences result from the driving force for a substantial reorganization of the O-Mo-S-C dihedral angle upon reduction, which decreases electron donation from the thiolate sulfurs to the reduced molybdenum center. The energy barrier to favorable O-Mo-S-C geometries results in a reorganizational energy increase, relative to [MoO(SPh)4](-/2-), that correlates with ligand size. The inherent flexible nature of oxomolybdenum-thiolate bonds indicate that thiolate ligand geometry, which controls Mo-S covalency, could affect the redox processes of monooxomolybdenum centers in pyranopterin molybdenum enzymes.
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Affiliation(s)
- Rebecca L McNaughton
- Department of Chemistry, The University of New Mexico, MSC03 2060, 1 University of New Mexico, Albuquerque, New Mexico 87131-0001, USA
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Cooke G, Couet J, Garety JF, Ma CQ, Mabruk S, Rabani G, Rotello VM, Sindelar V, Woisel P. The electrochemically tuneable hydrogen bonding interactions between a phenanthrenequinone-functionalized self-assembled monolayer and a phenyl-urea terminated dendrimer. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.03.117] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Donnio B, Guillon D. Liquid Crystalline Dendrimers and Polypedes. SUPRAMOLECULAR POLYMERS POLYMERIC BETAINS OLIGOMERS 2006. [DOI: 10.1007/12_079] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Dilly SJ, Carlisle SJ, Clark AJ, Shepherd AR, Smith SC, Taylor PC, Marsh A. Practical syntheses of [1,3,5]-triazine dendritic molecules on solid supports. ACTA ACUST UNITED AC 2006. [DOI: 10.1002/pola.21336] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
Dendritic molecules constitute one of the most exciting areas of modern nanochemistry, largely as a consequence of the unique properties associated with their branched architectures. This article describes how 'dendritic function' can also be achieved using small, synthetically accessible branched building blocks (individual dendrons) which simply self-assemble via non-covalent interactions to generate dendritic nanoscale architectures with novel behaviour. (a) Using non-covalent interactions at the focal point of a dendron allows the self-assembly of nanometre-sized supramolecular dendrimers around an appropriate template species. Such systems have potential applications in the controlled encapsulation and release of active ingredients. (b) Employing non-covalent intermolecular dendron-dendron interactions can give rise to the hierarchical assembly of nanostructured materials. Such assemblies of dendritic molecules ultimately express their molecular scale information on a macroscopic scale, and therefore have applications in materials science, for example as gels. (c) The multiple surface groups of dendrons are capable of forming multiple interactions with large surfaces, such as those found on biomolecules or in biological systems. Employing multivalent interactions between dendron surfaces and biological molecules opens up the potential application of dendritic systems as medicinal therapies. In summary, dendritic supermolecules offer a potentially cost-effective approach to the future application of dendritic systems to a range of real-world problems.
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Affiliation(s)
- David K Smith
- Department of Chemistry, University of York, Heslington, York, UKYO10 5DD.
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Pittelkow M, Nielsen CB, Broeren MAC, van Dongen JLJ, van Genderen MHP, Meijer EW, Christensen JB. Molecular Recognition: Comparative Study of a Tunable Host-Guest System by Using a Fluorescent Model System and Collision-Induced Dissociation Mass Spectrometry on Dendrimers. Chemistry 2005; 11:5126-35. [PMID: 15991204 DOI: 10.1002/chem.200401230] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Host-guest interactions between the periphery of adamantylurea-functionalized dendrimers (host) and ureido acetic acid derivatives (guest) were shown to be specific, strong and spatially well-defined. The binding becomes stronger when using phosphonic or sulfonic acid derivatives. In the present work we have quantified the binding constants for the host-guest interactions between two different host motifs and six different guest molecules. The host molecules, which resemble the periphery of a poly(propylene imine) dendrimer, have been fitted with an anthracene-based fluorescent probe. The two host motifs differ in terms of the length of the spacer between a tertiary amine and two ureido functionalities. The guest molecules all contain an acidic moiety (either a carboxylic acid, a phosphonic acid, or a sulfonic acid) and three of them also contain an ureido moiety capable of forming multiple hydrogen bonds to the hosts. The binding constants for all 12 host-guest complexes have been determined by using fluorescence titrations by monitoring the increase in fluorescence of the host upon protonation by the addition of the guest. The binding constants could be tuned by changing the design of the acidic part of the guest. The formation of hydrogen bonds gives, in all cases, higher association constants, demonstrating that the host is more than a proton sensor. The host with the longer spacer (propyl) shows higher association constants than the host with the shorter spacer (ethyl). The gain in association constants are higher when the urea function is added to the guests for the host with the longer spacer, indicating a better fit. Collision-induced dissociation mass spectrometry (CID-MS) is used to study the stability of the six motifs using the corresponding third generation dendrimer. A similar trend is found when the six different guests are compared.
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Affiliation(s)
- Michael Pittelkow
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, Denmark
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Onclin S, Huskens J, Ravoo BJ, Reinhoudt DN. Molecular boxes on a molecular printboard: encapsulation of anionic dyes in immobilized dendrimers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2005; 1:852-7. [PMID: 17193539 DOI: 10.1002/smll.200500078] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Fifth-generation poly(propylene imine) dendrimers, modified with 64 apolar adamantyl groups, have been immobilized on cyclodextrin host monolayers ("molecular printboards") on glass by supramolecular microcontact printing. The immobilized dendrimers retain their guest-binding properties and function as "molecular boxes" that can be filled with fluorescent dye molecules from solution. Alternatively, part of the immobilized dendrimers were filled with dye molecules by cross-microcontact printing while the remaining, empty dendrimers were filled with a different dye from solution, resulting in alternating patterns of dye molecules. In addition, we demonstrate that encapsulation of dyes in immobilized dendrimers is reversible: immobilized molecular boxes can be filled with a dye, emptied, and subsequently refilled with a different dye.
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Affiliation(s)
- Steffen Onclin
- Laboratory of Supramolecular Chemistry and Technology, MESA+Institute for Nanotechnology, University of Twente, P. O. Box 217, 7500 AE Enschede, The Netherlands
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Kostiainen MA, Hardy JG, Smith DK. High-Affinity Multivalent DNA Binding by Using Low-Molecular-Weight Dendrons. Angew Chem Int Ed Engl 2005; 44:2556-9. [PMID: 15782377 DOI: 10.1002/anie.200500066] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mauri A Kostiainen
- Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK
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