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Liu Y, Xu Y, Zhao Y, Jia Y. Effect of ionic concentration on drug release from polyelectrolyte hydrogel carriers analyzed via triphasic mechanism model. Chem Res Chin Univ 2015. [DOI: 10.1007/s40242-015-5295-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Swamy BY, Prasad CV, Rao KC, Subha MCS. Preparation and Characterization of Poly (Hydroxy Ethyl Methyl Acrylate-Co-Acrylic Acid) Microspheres for Drug Delivery Application. INT J POLYM MATER PO 2013. [DOI: 10.1080/00914037.2013.769229] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Yerriswamy B, Reddy CL, Prasad CV, Subha MCS, Rao KC. Synthesis and Characterization of Sodium Alginate-g-2-Hydroxyethyl Methacrylate Interpenetrating Beads for Controlled Release of Acebutolol Hydrochloride. Des Monomers Polym 2012. [DOI: 10.1163/138577210x541178] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- B. Yerriswamy
- a Department of Chemistry, Sri Krishnadevaraya University, Anantapur, India;,
| | | | - C. Venkata Prasad
- c Department of Polymer Science & Technology, Sri Krishnadevaraya University, Anantapur, India
| | - M. C. S. Subha
- d Department of Chemistry, Sri Krishnadevaraya University, Anantapur, India
| | - K. Chowdoji Rao
- e Department of Polymer Science & Technology, Sri Krishnadevaraya University, Anantapur, India
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Mehrotra S, Lynam D, Liu C, Shahriari D, Lee I, Tuszynski M, Sakamoto J, Chan C. Time controlled release of arabinofuranosylcytosine (Ara-C) from agarose hydrogels using layer-by-layer assembly: an in vitro study. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2011; 23:439-63. [PMID: 21294967 PMCID: PMC3873741 DOI: 10.1163/092050610x552221] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Experimentally induced axonal regeneration is compromised by glial scar formation arising from leptomeningeal fibroblasts cells in and around the hydrogel scaffold implanted for nerve repair. Strategies are needed to prevent such fibroblastic reactive cell layer formation for enhanced axonal regeneration. Here, we implement the technique of layer-by-layer assembled degradable, hydrogen bonded multilayers on agarose hydrogels to incorporate an anti-mitotic drug (1-β-D-arabinofuranosylcytosine (Ara-C)) within the agarose hydrogels. We show controlled release of Ara-C under physiological conditions over a period of days. The concentrations of Ara-C released from agarose at the different time points were sufficient to inhibit fibroblast growth in vitro, while not adversely affecting the viability of the neuronal cells.
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Affiliation(s)
- Sumit Mehrotra
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | - Daniel Lynam
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | - Chun Liu
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | - Dena Shahriari
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | - Ilsoon Lee
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | - Mark Tuszynski
- Center for Neural Repair, Department of Neurosciences, University of California, San Diego, CA 92093, USA
| | - Jeffrey Sakamoto
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | - Christina Chan
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA
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Chhikara BS, Parang K. Development of cytarabine prodrugs and delivery systems for leukemia treatment. Expert Opin Drug Deliv 2010; 7:1399-414. [PMID: 20964588 DOI: 10.1517/17425247.2010.527330] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Development of semi-interpenetrating carbohydrate polymeric hydrogels embedded silver nanoparticles and its facile studies on E. coli. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.02.050] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Teijón C, Guerrero S, Olmo R, Teijón JM, Blanco MD. Swelling properties of copolymeric hydrogels of poly(ethylene glycol) monomethacrylate and monoesters of itaconic acid for use in drug delivery. J Biomed Mater Res B Appl Biomater 2009; 91:716-726. [PMID: 19572295 DOI: 10.1002/jbm.b.31448] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Copolymeric hydrogels of poly(ethylene glycol) monomethacrylate (PEGMA) (P) have been synthesized for use in drug-delivery. New copolymeric hydrogels were prepared by free radical solution polymerization of PEGMA and monomethyl itaconate (MMI) or monoethyl itaconate (MEI), using ethyleneglycol dimethacrylate and tetraethyleneglycol dimethacrylate, respectively, as cross-linkers. The effect of copolymer composition on swelling behavior, thermal decomposition and drug release was studied. Three compositions of each copolymer were studied: 70P/30MMI (or MEI), 80P/20MMI (or MEI) and 90P/10MMI (or MEI). The largest equilibrium swelling degree was observed in gels containing the highest content of MMI or MEI (84.22 +/- 0.22 wt % for 70P/30MEI; 79.56 +/- 0.64 wt % for 70P/30MMI). The swelling process was in accordance with Fick's Second Law. Methotrexate (MTX), an anticancer agent used in the treatment of different hyperproliferative epithelial diseases, was chosen to be loaded in the gels. The drug was included by immersion of the copolymeric disks in an aqueous solution of the drug. The amount of MTX in the xerogels was between 5.34 +/- 0.06 mg MTX/g (90P/10MMI) and 14.94 +/- 0.91 mg MTX/g (80P/20MEI). Two stages of thermal degradation for unloaded and MTX-loaded gels were determined; the presence of the drug in the polymeric matrices decreased the temperature of the first stage of thermal degradation. MTX release was also in accordance with Fick's Second Law. The length of total drug release (340 +/- 30 min-1502 +/- 81 min) could be modulated as a function of the comonomer composition of the hydrogel.
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Affiliation(s)
- César Teijón
- Escuela Universitaria de Enfermería, Fisioterapia y Podología, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - Sandra Guerrero
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - Rosa Olmo
- Escuela Universitaria de Enfermería y Fisioterapia, Universidad Pontificia Comillas, Madrid, Spain
| | - José M Teijón
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - M Dolores Blanco
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad Complutense de Madrid, Madrid 28040, Spain
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Babu VR, Sairam M, Hosamani KM, Aminabhavi TM. Preparation and characterization of novel semi-interpenetrating 2-hydroxyethyl methacrylate-g-chitosan copolymeric microspheres for sustained release of indomethacin. J Appl Polym Sci 2007. [DOI: 10.1002/app.25453] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Teijón C, Olmo R, Blanco MD, Teijón JM, Romero A. Effect of the crosslinking degree and the nickel salt load on the thermal decomposition of poly(2-hydroxyethyl methacrylate) hydrogels and on the metal release from them. J Colloid Interface Sci 2006; 295:393-400. [PMID: 16288772 DOI: 10.1016/j.jcis.2005.10.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2005] [Revised: 09/20/2005] [Accepted: 10/11/2005] [Indexed: 11/15/2022]
Abstract
Polymeric matrices of poly(2-hydroxyethyl methacrylate) (PHEMA) crosslinked with different percentages of ethylene glycol dimethacrylate (EGDMA) as well as different loads of nickel salt were synthesized. Nickel release from the polymeric systems, and their thermal stability were analyzed. A high percentage of the nickel loaded was released, although strong interactions between the polymeric matrices and the nickel ion must be established since a total nickel release did not take place. The values of the diffusion coefficients showed that nickel release depended on the amount of nickel salt loaded in the polymeric matrix and also on the crosslinking degree of the gels. On the other hand, the presence of nickel salt induced an evident thermal instability in the polymeric matrices, although all the polymeric systems can be considered thermally stable.
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Affiliation(s)
- César Teijón
- Departamento de Ingeniería Química, Facultad de Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain
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Kim SJ, Shin SR, Shin DI, Kim IY, Kim SI. Synthesis and characteristics of semi-interpenetrating polymer network hydrogels based on chitosan and poly(hydroxy ethyl methacrylate). J Appl Polym Sci 2005. [DOI: 10.1002/app.21407] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Chowdhury MA, Hill DJT, Whittaker AK. Vitamin B12 Release from P(HEMA-co-THFMA) in Water and SBF: A Model Drug Release Study. Aust J Chem 2005. [DOI: 10.1071/ch05027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A model drug release study on the ingress of water and Kokubo simulated body fluid (SBF) into poly(2-hydroxyethyl methacrylate) (P(HEMA)) and its copolymers with tetrahydrofurfuryl methacrylate (THFMA) loaded with vitamin B12 was undertaken over the temperature range 298–318 K. The polymers were studied as cylinders and were loaded with either 5 or 10 wt-% of the drug. The drug release from the polymers was found to follow a Fickian diffusion mechanism in the early stages of the drug release, with higher normalized release rates at higher temperatures and higher drug loadings. The normalized release rates were also found to be higher for the SBF solution than for water. The copolymer composition was found to have a significant effect on the rate of release of the drug, with the rate falling rapidly between HEMA mole fractions of 1.0 and 0.8, but for lower mole fractions of HEMA the normalized release rate decreased more slowly. This behaviour followed the trend found for the changes in the equilibrium penetrant contents for the copolymers.
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Bernardo MV, Blanco MD, Olmo R, Teijón JM. Delivery of bupivacaine included in poly(acrylamide-co-monomethyl itaconate) hydrogels as a function of the pH swelling medium. J Appl Polym Sci 2002. [DOI: 10.1002/app.10962] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Shaheen SM, Ukai K, Dai L, Yamaura K. Properties of hydrogels of atactic poly(vinyl alcohol)/NaCl/H2O system and their application to drug release. POLYM INT 2002. [DOI: 10.1002/pi.1061] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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