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Jäkle F, Sheridan JB, Pawar GM. Inside Cover: Pyridylborates as a New Type of Robust Scorpionate Ligand: From Metal Complexes to Polymeric Materials (Eur. J. Inorg. Chem. 15–16/2016). Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201670153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Frieder Jäkle
- Department of Chemistry Rutgers University Newark 73 Warren Street07102NewarkNew JerseyUnited States
| | - John B. Sheridan
- Department of Chemistry Rutgers University Newark 73 Warren Street07102NewarkNew JerseyUnited States
| | - Gajanan M. Pawar
- Department of Chemistry Rutgers University Newark 73 Warren Street07102NewarkNew JerseyUnited States
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Affiliation(s)
- Gajanan M. Pawar
- Department of Chemistry; Rutgers University Newark; 73 Warren Street 07102 Newark New Jersey United States
| | - John B. Sheridan
- Department of Chemistry; Rutgers University Newark; 73 Warren Street 07102 Newark New Jersey United States
| | - Frieder Jäkle
- Department of Chemistry; Rutgers University Newark; 73 Warren Street 07102 Newark New Jersey United States
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Abdelmohsen LKEA, Nijemeisland M, Pawar GM, Janssen GJA, Nolte RJM, van Hest JCM, Wilson DA. Dynamic Loading and Unloading of Proteins in Polymeric Stomatocytes: Formation of an Enzyme-Loaded Supramolecular Nanomotor. ACS Nano 2016; 10:2652-60. [PMID: 26811982 DOI: 10.1021/acsnano.5b07689] [Citation(s) in RCA: 186] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Self-powered artificial nanomotors are currently attracting increased interest as mimics of biological motors but also as potential components of nanomachinery, robotics, and sensing devices. We have recently described the controlled shape transformation of polymersomes into bowl-shaped stomatocytes and the assembly of platinum-driven nanomotors. However, the platinum encapsulation inside the structures was low; only 50% of the structures contained the catalyst and required both high fuel concentrations for the propelling of the nanomotors and harsh conditions for the shape transformation. Application of the nanomotors in a biological setting requires the nanomotors to be efficiently propelled by a naturally available energy source and at biological relevant concentrations. Here we report a strategy for enzyme entrapment and nanomotor assembly via controlled and reversible folding of polymersomes into stomatocytes under mild conditions, allowing the encapsulation of the proteins inside the stomach with almost 100% efficiency and retention of activity. The resulting enzyme-driven nanomotors are capable of propelling these structures at low fuel concentrations (hydrogen peroxide or glucose) via a one-enzyme or two-enzyme system. The confinement of the enzymes inside the stomach does not hinder their activity and in fact facilitates the transfer of the substrates, while protecting them from the deactivating influences of the media. This is particularly important for future applications of nanomotors in biological settings especially for systems where fast autonomous movement occurs at physiological concentrations of fuel.
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Affiliation(s)
- Loai K E A Abdelmohsen
- Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Marlies Nijemeisland
- Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Gajanan M Pawar
- Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Geert-Jan A Janssen
- Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Roeland J M Nolte
- Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Jan C M van Hest
- Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
| | - Daniela A Wilson
- Institute for Molecules and Materials, Radboud University , Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
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Pawar GM, Lalancette RA, Bonder EM, Sheridan JB, Jäkle F. ROMP-Derived Pyridylborate Block Copolymers: Self-Assembly, pH-Responsive Properties, and Metal-Containing Nanostructures. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01216] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Gajanan M. Pawar
- Department of Chemistry, Rutgers University Newark, 73
Warren Street, Newark, New
Jersey 07102, United States
| | - Roger A. Lalancette
- Department of Chemistry, Rutgers University Newark, 73
Warren Street, Newark, New
Jersey 07102, United States
| | - Edward M. Bonder
- Department of Chemistry, Rutgers University Newark, 73
Warren Street, Newark, New
Jersey 07102, United States
| | - John B. Sheridan
- Department of Chemistry, Rutgers University Newark, 73
Warren Street, Newark, New
Jersey 07102, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University Newark, 73
Warren Street, Newark, New
Jersey 07102, United States
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Koenigs MME, Pal A, Mortazavi H, Pawar GM, Storm C, Sijbesma RP. Tuning Cross-Link Density in a Physical Hydrogel by Supramolecular Self-Sorting. Macromolecules 2014. [DOI: 10.1021/ma500446g] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Marcel M. E. Koenigs
- Laboratory
for Macromolecular and Organic Chemistry, and Institute for Complex
Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Asish Pal
- Laboratory
for Macromolecular and Organic Chemistry, and Institute for Complex
Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Hamed Mortazavi
- Department
of Applied Physics and Institute for Complex Molecular Systems Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Gajanan M. Pawar
- Laboratory
for Macromolecular and Organic Chemistry, and Institute for Complex
Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Cornelis Storm
- Department
of Applied Physics and Institute for Complex Molecular Systems Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Rint P. Sijbesma
- Laboratory
for Macromolecular and Organic Chemistry, and Institute for Complex
Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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Pawar GM, Koenigs M, Fahimi Z, Cox M, Voets IK, Wyss HM, Sijbesma RP. Injectable Hydrogels from Segmented PEG-Bisurea Copolymers. Biomacromolecules 2012; 13:3966-76. [DOI: 10.1021/bm301242v] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Pawar GM, Weckesser J, Blechert S, Buchmeiser MR. Ring opening metathesis polymerization-derived block copolymers bearing chelating ligands: synthesis, metal immobilization and use in hydroformylation under micellar conditions. Beilstein J Org Chem 2010; 6:28. [PMID: 20502652 PMCID: PMC2874313 DOI: 10.3762/bjoc.6.28] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2010] [Accepted: 03/17/2010] [Indexed: 11/23/2022] Open
Abstract
Norborn-5-ene-(N,N-dipyrid-2-yl)carbamide (M1) was copolymerized with exo,exo-[2-(3-ethoxycarbonyl-7-oxabicyclo[2.2.1]hept-5-en-2-carbonyloxy)ethyl]trimethylammonium iodide (M2) using the Schrock catalyst Mo(N-2,6-Me₂-C₆H₃)(CHCMe₂Ph)(OCMe(CF₃)₂)₂[Mo] to yield poly(M1-b-M2). In water, poly(M1-b-M2) forms micelles with a critical micelle-forming concentration (cmc) of 2.8 x 10⁻⁶ mol L⁻¹; Reaction of poly(M1-b-M2) with [Rh(COD)Cl]₂ (COD = cycloocta-1,5-diene) yields the Rh(I)-loaded block copolymer poly(M1-b-M2)-Rh containing 18 mg of Rh(I)/g of block copolymer with a cmc of 2.2 x 10⁻⁶ mol L⁻¹. The Rh-loaded polymer was used for the hydroformylation of 1-octene under micellar conditions. The data obtained were compared to those obtained with a monomeric analogue, i.e. CH₃CON(Py)₂RhCl(COD) (C1, Py = 2-pyridyl). Using the polymer-supported catalyst under micellar conditions, a significant increase in selectivity, i.e. an increase in the n:iso ratio was accomplished, which could be further enhanced by the addition of excess ligand, e.g., triphenylphosphite. Special features of the micellar catalytic set up are discussed.
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Affiliation(s)
- Gajanan M Pawar
- Lehrstuhl für Makromolekulare Stoffe und Faserchemie, Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany; Tel.: +49 (0)711-685-64075; Fax: +49 (0)711-685-64050
| | - Jochen Weckesser
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, D-10623 Berlin, Germany
| | - Siegfried Blechert
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, D-10623 Berlin, Germany
| | - Michael R Buchmeiser
- Lehrstuhl für Makromolekulare Stoffe und Faserchemie, Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, D-70550 Stuttgart, Germany; Tel.: +49 (0)711-685-64075; Fax: +49 (0)711-685-64050
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Pawar GM, Bantu B, Weckesser J, Blechert S, Wurst K, Buchmeiser MR. Ring-opening metathesis polymerization-derived, polymer-bound Cu-catalysts for click-chemistry and hydrosilylation reactions under micellar conditions. Dalton Trans 2009:9043-51. [DOI: 10.1039/b909180g] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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