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256 matches in the database. These are records: 1 - 30. New search.

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1. Structure-biocompatibility relationship of dendritic polyglycerol derivatives. Khandare, Jayant; Mohr, Andreas; Calderón, Marcelo; Welker, Pia; Licha, Kai; Haag, Rainer. Biomaterials vol. 31 issue 15 May, 2010. p. 4268-4277

 Nanocarriers possess advanced physicochemical properties that improve bioavailability, enhance cellular dynamics, and control… (more)

Keywords: Dendritic polyglycerols; Delivery carrier systems; Zeta potential; Bovine serum albumin binding; Cell biocompatibility and cytotoxicity

DOI: 10.1016/j.biomaterials.2010.02.001. ISSN: 0142-9612.

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2. Hyperbranched polyglycerols on the nanometer and micrometer scale. Steinhilber, Dirk; Seiffert, Sebastian; Heyman, John A.; Paulus, Florian; Weitz, David A.; Haag, Rainer. Biomaterials vol. 32 issue 5 February, 2011. p. 1311-1316

 We report the preparation of polyglycerol particles on different length scales by extending… (more)

Keywords: Biocompatibility; Cell encapsulation; Hydrogel; Microsphere; Nanoparticle

DOI: 10.1016/j.biomaterials.2010.10.010. ISSN: 0142-9612.

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3. ChemInform Abstract: Polyglycerol-Supported Co- and Mn-Salen Complexes as Efficient and Recyclable Homogeneous Catalysts for the Hydrolytic Kinetic Resolution of Terminal Epoxides and Asymmetric Olefin Epoxidation. Beigi, Maryam; Roller, Sebastian; Haag, Rainer; Liese, Andreas. ChemInform vol. 39 issue 32 August 5, 2008.

 ChemInform is a weekly Abstracting Service, delivering concise information at a glance that… (more)

Keywords: oxirane derivatives; diastereoselective syntheses, enantioselective syntheses (incl. cis/trans-isomerism); epoxidation; stereochemistry (general, optical resolution)

DOI: 10.1002/chin.200832101. ISSN: 0931-7597.

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4. Hyperbranched Polymers as Platforms for Catalysts. Hajji, Chakib; Haag, Rainer. ChemInform vol. 38 issue 40 October 2, 2007.

 ChemInform is a weekly Abstracting Service, delivering concise information at a glance that… (more)

Keywords: organic chemistry, review; heterogeneous catalysis, catalysts; catalysis, phase-transfer catalysis

DOI: 10.1002/chin.200740251. ISSN: 0931-7597.

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5. Dendritic Polyglycerols for Biomedical Applications. Calderón, Marcelo; Quadir, Mohiuddin Abdul; Sharma, Sunil Kumar; Haag, Rainer. Advanced Materials vol. 22 issue 2 January 12, 2010. p. 190 - 218

 The application of nanotechnology in medicine and pharmaceuticals is a rapidly advancing field… (more)

Keywords: Core/shell nanoparticles; Dendrimers; Hyperbranched polyglycerols; Multivalent nanocarriers; Surface modification

DOI: 10.1002/adma.200902144. ISSN: 0935-9648.

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6. Influence of nanocarrier type and size on skin delivery of hydrophilic agents. Küchler, Sarah; Abdel-Mottaleb, Mona; Lamprecht, Alf; Radowski, Michal R.; Haag, Rainer; Schäfer-Korting, Monika. International Journal of Pharmaceutics vol. 377 issue 1-2 July 30, 2009. p. 169-172

 The nanoparticulate carrier systems solid lipid nanoparticles (SLN) and dendritic core-multishell (CMS) nanotransporters… (more)

Keywords: CMS; dendritic core-multishell; LD; laser diffraction; LNC; lipid nanocapsules; PCS; photon correlation spectroscopy; PEE; penetration enhancing effect; PI; polydispersity index; SLN; solid lipid nanoparticles; Dendritic core-multishell nanotransporters; Solid lipid nanoparticles; Skin penetration; Size effect; Rhodamin B

DOI: 10.1016/j.ijpharm.2009.04.046. ISSN: 0378-5173.

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7. Highly Regioselective Synthesis of Amino-Functionalized Dendritic Polyglycerols by a One-Pot Hydroformylation/Reductive Amination Sequence. Koç, Fikret; Wyszogrodzka, Monika; Eilbracht, Peter; Haag, Rainer. The Journal of Organic Chemistry vol. 70 issue 6 March 18, 2005. p. 2021-2025

DOI: http://dx.doi.org/10.1021/jo0481304. ISSN: 0022-3263.

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8. Structural and chemical properties of tribenzo-4,7-dihydroacepentalene derivatives and their central pyramidalised double bonds. Haag, Rainer; Ohlhorst, Björg; Noltemeyer, Matthias; Schuster, Andreas; Kuck, Dietmar; de Meijere, Armin. Journal of the Chemical Society, Chemical Communications vol. 1993 issue 23 1993. p. 1727-1729

 Dipotassium tribenzodihydroacepentalenediide 42− reacts with electrophiles to give 4,7-disubstituted tribenzodihydroacepentalene derivatives 3 with… (more)

DOI: 10.1039/C39930001727. ISSN: 0022-4936.

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9. Structure-Transport Relationship of Dendritic Core-Shell Nanocarriers for Polar Dyes. Xu, Shangjie; Luo, Ying; Haag, Rainer. Macromolecular Rapid Communications vol. 29 issue 2 January 17, 2008. p. 171 - 174

 TriPEGylated functionalized dendritic poly(ethylene imines) were synthesized and their transportation properties for rose… (more)

Keywords: aggregates; core-shell nanocarrier; dendrimers; dyes; structure-transport relationship

DOI: 10.1002/marc.200700589. ISSN: 1022-1336.

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10. Supramolecular Aggregates of Water Soluble Dendritic Polyglycerol Architectures for the Solubilization of Hydrophobic Compounds. Kurniasih, Indah N.; Liang, Hua; Rabe, Jürgen P.; Haag, Rainer. Macromolecular Rapid Communications vol. 31 issue 17 September 1, 2010. p. 1516-1520

  Dendritic core–shell architectures which are based on hyperbranched polyglycerol for the solubilization… (more)

Keywords: core–shell polymers; drug delivery systems; supramolecular host–guest interaction; hyperbranched polyglycerol

DOI: 10.1002/marc.201000112. ISSN: 1022-1336.

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11. Polymers in Biomedicine and Electronics. Lendlein, Andreas; Rehahn, Matthias; Buchmeiser, Michael R.; Haag, Rainer. Macromolecular Rapid Communications vol. 31 issue 17 September 1, 2010. p. 1487-1491

DOI: 10.1002/marc.201000426. ISSN: 1022-1336.

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12. PMMA Gradient Materials and in situ Nanocoating via Self-Assembly of Semifluorinated Hyperbranched Amphiphiles. Thomann, Yi; Haag, Rainer; Brenn, Rüdiger; Delto, Ralf; Weickman, Hans; Thomann, Ralf; Mülhaupt, Rolf. Macromolecular Chemistry and Physics vol. 206 issue 1 January 5, 2005. p. 135 - 141

 Summary: Nanostructured poly(methyl methacrylate) (PMMA) gradient materials with in situ nanocoating were obtained… (more)

Keywords: amphiphiles; dendrimer; fluorinated polymers; hyperbranched; nanocoating; polyglycerol; poly(methyl methacrylate)

DOI: 10.1002/macp.200400125. ISSN: 1022-1352.

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13. Broadband Dielectric Spectroscopy Studies of Hyperbranched Polyglycerols. Garcia-Bernabé, Abel; Díaz-Calleja, Ricardo; Haag, Rainer. Macromolecular Chemistry and Physics vol. 207 issue 11 June 2, 2006. p. 970 - 977

 Summary: The broadband dielectric spectroscopy of three hyperbranched polyglycerols with different molecular weights… (more)

Keywords: dielectric properties; glass transition; hyperbranched; polyglycerol; secondary relaxation

DOI: 10.1002/macp.200600025. ISSN: 1022-1352.

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14. Biocatalytic Approach for the Synthesis of Glycerol-Based Macroamphiphiles and their Self-Assembly to Micellar Nanotransporters. Gupta, Shilpi; Pandey, Mukesh K.; Levon, Kalle; Haag, Rainer; Watterson, Arthur C.; Parmar, Virinder S.; Sharma, Sunil K. Macromolecular Chemistry and Physics vol. 211 issue 2 January 19, 2010. p. 239 - 244

 Glycerol is one of the most versatile and valuable chemical substances and is… (more)

Keywords: amphiphiles; block copolymers; enzymes; glycerol; polyethylene glycol

DOI: 10.1002/macp.200900391. ISSN: 1022-1352.

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15. Development of enzymatically cleavable prodrugs derived from dendritic polyglycerol. Calderón, Marcelo; Graeser, Ralph; Kratz, Felix; Haag, Rainer. Bioorganic & Medicinal Chemistry Letters vol. 19 issue 14 July 15, 2009. p. 3725-3728

 In this Letter we report the synthesis and in vitro studies of cleavable… (more)

Keywords: Polyglycerol; Polymer therapeutics; Prodrug; Doxorubicin; Methotrexate; Drug conjugate; Controlled release; Nanocarrier

DOI: 10.1016/j.bmcl.2009.05.058. ISSN: 0960-894X.

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16. Continuous Application of Polyglycerol-Supported Salen in a Membrane Reactor: Asymmetric Epoxidation of 6-Cyano-2,2-dimethylchromene. Beigi, Maryam; Haag, Rainer; Liese, Andreas. Advanced Synthesis & Catalysis vol. 350 issue 6 April 7, 2008. p. 919 - 925

 In the current work, suitability of hyperbranched polyglycerol as a high loading catalyst… (more)

Keywords: asymmetric epoxidation; hyperbranched polymers; membrane reactor; polyglycerol; ultrafiltration

DOI: 10.1002/adsc.200700591. ISSN: 1615-4150.

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17. Polyglycerol-Supported Chromium-Salen as a High-Loading Dendritic Catalyst for Stereoselective Diels–Alder Reactions. Hajji, Chakib; Roller, Sebastian; Beigi, Maryam; Liese, Andreas; Haag, Rainer. Advanced Synthesis & Catalysis vol. 348 issue 12-13 August 2006. p. 1760 - 1771

 In this paper we demonstrate the application of hyperbranched polyglycerol (PG) 3 as… (more)

Keywords: dendritic architecture; Diels–Alder reaction; hyperbranched polymer; polyglycerol; polymeric support; salen ligand

DOI: 10.1002/adsc.200606168. ISSN: 1615-4150.

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18. Supramolecular Immobilization of a Perfluoro-Tagged Pd-Catalyst with Dendritic Architectures and Application in Suzuki Reactions. Garcia-Bernabé, Abel; Tzschucke, Carl Christoph; Bannwarth, Willi; Haag, Rainer. Advanced Synthesis & Catalysis vol. 347 issue 10 August 2005. p. 1389 - 1394

 A new supramolecular complex of a perfluoro-tagged palladium phosphine catalyst to a dendritic… (more)

Keywords: dendrimers; fluorinated ligands; ligand recycling; palladium catalysis; supramolecular complex; Suzuki coupling

DOI: 10.1002/adsc.200505079. ISSN: 1615-4150.

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19. Chirally Modified Platinum Nanoparticles Stabilized by Dendritic Core-Multishell Architectures for the Asymmetric Hydrogenation of Ethyl Pyruvate. Keilitz, Juliane; Nowag, Sabrina; Marty, Jean-Daniel; Haag, Rainer. Advanced Synthesis & Catalysis vol. 352 issue 9 June 1, 2010. p. 1503 - 1511

 In this paper we present the asymmetric hydrogenation of α-keto esters with platinum… (more)

Keywords: asymmetric catalysis; chiral modification; dendritic; hydrogenation; nanoparticles; recycling

DOI: 10.1002/adsc.201000128. ISSN: 1615-4150.

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20. Immobilization of a Modified Tethered Rhodium(III)-p-Toluenesulfonyl-1,2-diphenylethylenediamine Catalyst on Soluble and Solid Polymeric Supports and Successful Application to Asymmetric Transfer Hydrogenation of Ketones. Dimroth, Jonas; Keilitz, Juliane; Schedler, Uwe; Schomäcker, Reinhard; Haag, Rainer. Advanced Synthesis & Catalysis vol. 352 issue 14-15 October 4, 2010. p. 2497-2506

  Catalyst immobilization through covalent attachment onto a support is one strategy to… (more)

Keywords: asymmetric catalysis; asymmetric transfer hydrogenation; immobilization; recycling; rhodium; supported catalysts

DOI: 10.1002/adsc.201000340. ISSN: 1615-4150.

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21. Novel chemoenzymatic methodology for the regioselective glycine loading on polyhydroxy compounds. Malhotra, Shashwat; Calderón, Marcelo; Prasad, Ashok K.; Parmar, Virinder S.; Haag, Rainer. Organic & Biomolecular Chemistry vol. 8 issue 9 April 16, 2010. p. 2228-2237

  In the present work, we have developed a highly efficient temperature-dependent chemo-enzymatic… (more)

DOI: 10.1039/b927021c. ISSN: 1477-0520.

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22. Size-Tunable Micron-Bubbles Based on Fluorous–Fluorous Interactions of Perfluorinated Dendritic Polyglycerols. Zieringer, Maximilian; Garcia‐Bernabé, Abel; Costisella, Burkhard; Glatz, Heiko; Bannwarth, Willi; Haag, Rainer. ChemPhysChem vol. 11 issue 12 August 23, 2010. p. 2617-2622

  This paper describes the behavior of various generations of polyglycerol dendrimers that… (more)

Keywords: dendrimers; fluorous–fluorous interactions; micron-sized bubbles; polyglycerol; supramolecular chemistry

DOI: 10.1002/cphc.201000157. ISSN: 1439-4235.

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23. Effective Reversible Photoinduced Switching of Self-Assembled Monolayers of Functional Imines on Gold Nanoparticles. Luo, Ying; Korchak, Sergey; Vieth, Hans‐Martin; Haag, Rainer. ChemPhysChem vol. 12 issue 1 January 17, 2011. p. 132-135

  Rapid and effective photoinduced reversible switching is achieved on a novel gold… (more)

Keywords: gold; isomerization; nanoparticles; Schiff bases; self-assembly

DOI: 10.1002/cphc.201000694. ISSN: 1439-4235.

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24. Carbohydrate analogue polymers by ring opening metathesis poymerisation (ROMP) and subsequent catalytic dihydroxylation. Meier, Stefan; Reisinger, Harald; Haag, Rainer; Mecking, Stefan; Mülhaupt, Rolf; Stelzer, Franz. Chemical Communications (Cambridge) vol. 2001 issue 9 2001. p. 855-856

Ring opening metathesis poymerisation (ROMP) followed by catalytic dihydroxylation affords macromolecules with 1,2-diol structures. These new macromolecular compositions represent C-glycoside analogues of ribofuranose polymers that are thermally and hydrolytically stable.

DOI: 10.1039/b100680k. ISSN: 1359-7345.

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25. Highly fluorescent water-soluble polyglycerol-dendronized perylene bisimide dyes. Heek, Timm; Fasting, Carlo; Rest, Christina; Zhang, Xin; Würthner, Frank; Haag, Rainer. Chemical Communications vol. 46 issue 11 March 1, 2010. p. 1884-1886

 Water-soluble perylene tetracarboxylic acid bisimides (PBIs) with terminally linked polyglycerol dendrons of four… (more)

DOI: 10.1039/b923806a. ISSN: 1359-7345.

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26. Switchable, biocompatible surfaces based on glycerol copolymers. Weinhart, Marie; Becherer, Tobias; Haag, Rainer. Chemical Communications vol. 47 issue 5 February 7, 2011. p. 1553-1555

 Two thermoresponsive copolymers based on glycerol were synthesized and tethered onto gold surfaces… (more)

DOI: 10.1039/c0cc04002a. ISSN: 1359-7345.

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27. Photoresponsive amphiphiles based on azobenzene-dendritic glycerol conjugates show switchable transport behavior. Kördel, Christian; Popeney, Chris S.; Haag, Rainer. Chemical Communications vol. 47 issue 23 May 31, 2011. p. 6584-6586

 The synthesis and aggregation behavior of photo-switchable, nonionic dendritic amphiphiles was investigated with… (more)

DOI: 10.1039/c1cc11673h. ISSN: 1359-7345.

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28. A Dyadic Sensitizer for Dye Solar Cells with High Energy-Transfer Efficiency in the Device. Siegers, Conrad; Hohl-Ebinger, Jochen; Zimmermann, Boris; Würfel, Uli; Mülhaupt, Rolf; Hinsch, Andreas; Haag, Rainer. ChemPhysChem vol. 8 issue 10 July 16, 2007. p. 1548 - 1556

 A new bichromophoric dyad based on an alkyl-functionalized aminonaphthalimide as energy-donor chromophore and… (more)

Keywords: dyes; FRET (fluorescence resonant energy transfer); ruthenium; sensitizers; solar cells

DOI: 10.1002/cphc.200700170. ISSN: 1439-4235.

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29. Cover Picture: Dendritic Polyamines: Simple Access to New Materials with Defined Treelike Structures for Application in Nonviral Gene Delivery (ChemBioChem 8/2004). Krämer, Michael; Stumbé, Jean‐François; Grimm, Günther; Kaufmann, Brigitte; Krüger, Ute; Weber, Martin; Haag, Rainer. ChemBioChem vol. 5 issue 8 August 6, 2004. p. 1021-1021

  The cover picture shows the highly branched dendritic polymers obtained from controlled… (more)

Keywords: dendrimers; DNA transfection; gene delivery; hyperbranched polyamines; polymers

DOI: 10.1002/cbic.200490031. ISSN: 1439-4227.

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30. Dendritic Polyamines: Simple Access to New Materials with Defined Treelike Structures for Application in Nonviral Gene Delivery. Krämer, Michael; Stumbé, Jean‐François; Grimm, Günther; Kaufmann, Brigitte; Krüger, Ute; Weber, Martin; Haag, Rainer. ChemBioChem vol. 5 issue 8 August 6, 2004. p. 1081-1087

  Polycationic dendrimers are interesting nonviral vectors for in vitro DNA delivery. We… (more)

Keywords: dendrimers; DNA transfection; gene delivery; hyperbranched polyamines; polymers

DOI: 10.1002/cbic.200300905. ISSN: 1439-4227.

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