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In vitro degradation study of polyanhydride copolymers / surface grafted hydroxyapatite composites for bone tissue application. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.04.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Orban DE, Moretti A, Uhrich KE. Spatial location of indomethacin associated with unimeric amphiphilic carrier macromolecules as determined by nuclear magnetic resonance spectroscopy. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2016; 54:575-583. [PMID: 26864907 DOI: 10.1002/mrc.4401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 11/23/2015] [Accepted: 11/27/2015] [Indexed: 06/05/2023]
Abstract
A combination of nuclear magnetic resonance (NMR) techniques including, proton NMR, relaxation analysis, two-dimensional nuclear Overhauser effect spectroscopy, and diffusion-ordered spectroscopy, has been used to demonstrate the spatial location of indomethacin within a unimolecular micelle. Understanding the location of drugs within carrier molecules using such NMR techniques can facilitate rational carrier design. In addition, this information provides insight to encapsulation efficiency of different drugs to determine the most efficient system for a particular bioactive. This study demonstrates that drugs loaded by the unimolecular amphiphile under investigation are not necessarily encapsulated but reside or localize to the periphery or interfacial region of the carrier molecule. The results have further implications as to the features of the unimolecular carrier that contribute to drug loading. In addition, evidence of drug retention associated with the unimolecular surfactant is possible in organic media, as well as in an aqueous environment. Such findings have implications for rational carrier design to correlate the carrier features to the drug of interest and indicate the strong retention capabilities of the unimolecular micelle for delivery applications. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- David E Orban
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
- Air Liquide - Advanced Materials, Branchburg, NJ, 08876, USA
| | - Alysha Moretti
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Kathryn E Uhrich
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854, USA
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Momtazi L, Bagherifam S, Singh G, Hofgaard A, Hakkarainen M, Glomm WR, Roos N, Mælandsmo GM, Griffiths G, Nyström B. Synthesis, characterization, and cellular uptake of magnetic nanocarriers for cancer drug delivery. J Colloid Interface Sci 2014; 433:76-85. [PMID: 25112915 DOI: 10.1016/j.jcis.2014.07.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 07/07/2014] [Accepted: 07/08/2014] [Indexed: 01/22/2023]
Abstract
HYPOTHESIS The absence of targetability is the primary inadequacy of conventional chemotherapy. Targeted drug delivery systems are conceptualized to overcome this challenge. We have designed a targetable magnetic nanocarrier consisting of a superparamagnetic iron oxide (SPIO) core and biocompatible and biodegradable poly(sebacic anhydride)-block-methyl ether poly(ethylene glycol) (PSA-mPEG) polymer shell. The idea is that this type of carriers should facilitate the targeting of cancer cells. EXPERIMENTS PSA-mPEG was synthesized with poly-condensation and the in vitro degradation rate of the polymer was monitored by gel permeation chromatography (GPC). The magnetic nanocarriers were fabricated devoid of any surfactants and were capable of carrying high payload of hydrophobic dye. The successful encapsulation of SPIO within the polymer shell was confirmed by TEM. The results we obtained from measuring the size of SPIO loaded in polymeric NPs (SPIO-PNP) by dynamic light scattering (DLS) and iron content measurement of these particles by ICP-MS, indicate that SPIO is the most suitable carrier for cancer drug delivery applications. FINDINGS Measuring the hydrodynamic radii of SPIO-PNPs by DLS over one month revealed the high stability of these particles at both body and room temperature. We further investigated the cell viability and cellular uptake of SPIO-PNPs in vitro with MDA-MB-231 breast cancer cells. We found that SPIO-PNPs induce negligible toxicity within a concentration range of 1-2μg/ml. The TEM micrographs of thin cross-sectioned MDA-MBA-231 cells showed internalization of SPIO-PNPs within size range of 150-200nm after 24h. This study has provided a foundation for eventually loading these nanoparticles with anti-cancer drugs for targeted cancer therapy using an external magnetic field.
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Affiliation(s)
- Leva Momtazi
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway.
| | - Shahla Bagherifam
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway; Department of Biology, University of Oslo, Blindernveien 31, 0316 Oslo, Norway.
| | - Gurvinder Singh
- Department of Chemical Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - Antje Hofgaard
- Department of Biology, University of Oslo, Blindernveien 31, 0316 Oslo, Norway.
| | - Minna Hakkarainen
- Department of Fiber and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56-58, 10044 Stockholm, Sweden.
| | - Wilhelm R Glomm
- Biotechnology and Nanomedicine Sector, SINTEF Materials and Chemistry, Sem Sælands vei 2A, N-7034 Trondheim, Norway.
| | - Norbert Roos
- Department of Biology, University of Oslo, Blindernveien 31, 0316 Oslo, Norway.
| | - Gunhild M Mælandsmo
- Department of Tumor Biology, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.
| | - Gareth Griffiths
- Department of Biology, University of Oslo, Blindernveien 31, 0316 Oslo, Norway.
| | - Bo Nyström
- Department of Chemistry, University of Oslo, P.O. Box 1033, Blindern, N-0315 Oslo, Norway.
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Natarajan J, Rattan S, Singh U, Madras G, Chatterjee K. Polyanhydrides of Castor Oil–Sebacic Acid for Controlled Release Applications. Ind Eng Chem Res 2014. [DOI: 10.1021/ie500679u] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Janeni Natarajan
- Centre for Nano Science and Engineering, ‡Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Shruti Rattan
- Centre for Nano Science and Engineering, ‡Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Utkarsh Singh
- Centre for Nano Science and Engineering, ‡Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Giridhar Madras
- Centre for Nano Science and Engineering, ‡Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, Karnataka, India
| | - Kaushik Chatterjee
- Centre for Nano Science and Engineering, ‡Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, Karnataka, India
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You Q, Chang H, Guo Q, Zhang Y, Zhang P. Polystyrene-b-poly(oligo(ethylene oxide) Monomethyl Ether Methacrylate)-b-polystyrene Triblock Copolymers as Potential Carriers for Hydrophobic Drugs. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.2.558] [Citation(s) in RCA: 2] [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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Liang Y, Xiao L, Zhai Y, Xie C, Deng L, Dong A. Preparation and characterization of biodegradable poly(sebacic anhydride) chain extended by glycol as drug carrier. J Appl Polym Sci 2012. [DOI: 10.1002/app.37708] [Citation(s) in RCA: 18] [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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Xing J, Deng L, Xie C, Xiao L, Zhai Y, Jin F, Li Y, Dong A. Methoxy poly(ethylene glycol)-b
-poly(octadecanoic anhydride)-b
-methoxy poly(ethylene glycol) amphiphilic triblock copolymer nanoparticles as delivery vehicles for paclitaxel. POLYM ADVAN TECHNOL 2011. [DOI: 10.1002/pat.1563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Zhao A, Zhou Q, Chen T, Weng J, Zhou S. Amphiphilic PEG-based ether-anhydride terpolymers: Synthesis, characterization, and micellization. J Appl Polym Sci 2010. [DOI: 10.1002/app.32724] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zhao A, Zhou S, Zhou Q, Chen T. Thermosensitive Micelles from PEG-Based Ether-anhydride Triblock Copolymers. Pharm Res 2010; 27:1627-43. [DOI: 10.1007/s11095-010-0155-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Accepted: 04/08/2010] [Indexed: 11/28/2022]
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SYNTHESIS OF PSt-<I>b</I>-PAA-<I>b</I>-PSt AMPHIPHILIC BLOCK COPOLYMERS VIA RAFT POLYMERIZATION AND THEIR SELF-ASSEMBLY IN IONIC LIQUID [BMIM][PF<SUB>6</SUB>]. ACTA POLYM SIN 2010. [DOI: 10.3724/sp.j.1105.2010.00065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Petrova S, Riva R, Jérôme C, Lecomte P, Mateva R. Controlled synthesis of AB2 amphiphilic triarm star-shaped block copolymers by ring-opening polymerization. Eur Polym J 2009. [DOI: 10.1016/j.eurpolymj.2009.09.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kim BS, Oh JM, Cho JS, Lee SH, Lee B, Khang G, Lee HB, Kim MS. Comparison of micelles formed by amphiphilic poly(ethylene glycol)-b-poly(trimethylene carbonate) star block copolymers. J Appl Polym Sci 2009. [DOI: 10.1002/app.29179] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Shen C, Guo S, Lu C. Degradation behaviors of monomethoxy poly(ethylene glycol)-b-poly(ɛ-caprolactone) nanoparticles in aqueous solution. POLYM ADVAN TECHNOL 2008. [DOI: 10.1002/pat.975] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Degradation behaviors of star-shaped poly(ethylene glycol)–poly(ɛ-caprolactone) nanoparticles in aqueous solution. Polym Degrad Stab 2007. [DOI: 10.1016/j.polymdegradstab.2007.06.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Lu C, Liu L, Guo SR, Zhang Y, Li Z, Gu J. Micellization and gelation of aqueous solutions of star-shaped PEG–PCL block copolymers consisting of branched 4-arm poly(ethylene glycol) and polycaprolactone blocks. Eur Polym J 2007. [DOI: 10.1016/j.eurpolymj.2007.02.039] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wang S, Cheng Z, Zhu J, Zhang Z, Zhu X. Synthesis of amphiphilic and thermosensitive graft copolymers with fluorescence P(St-co-(p-CMS))-g-PNIPAAM by combination of NMP and RAFT methods. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.22277] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhang Y, Guo S, Lu C, Liu L, Li Z, Gu J. Poly(ε-caprolactone)-b-poly(ethylene glycol)-b-poly(ε-caprolactone) triblock copolymers: Synthesis and self-assembly in aqueous solutions. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pola.21739] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Zhang N, Guo SR, Li HQ, Liu L, Li ZH, Gu JR. Synthesis of Three Types of Amphiphilic Poly(ethylene glycol)-block-Poly(sebacic anhydride) Copolymers and Studies of their Micellar Solutions. MACROMOL CHEM PHYS 2006. [DOI: 10.1002/macp.200600100] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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