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Podaru IA, Stănescu PO, Ginghină R, Stoleriu Ş, Trică B, Şomoghi R, Teodorescu M. Poly(N-vinylpyrrolidone)-Laponite XLG Nanocomposite Hydrogels: Characterization, Properties and Comparison with Divinyl Monomer-Crosslinked Hydrogels. Polymers (Basel) 2022; 14:polym14194216. [PMID: 36236165 PMCID: PMC9571604 DOI: 10.3390/polym14194216] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/03/2022] [Accepted: 10/04/2022] [Indexed: 11/12/2022] Open
Abstract
The present work investigates, for the first time, the synthesis and properties of some nanocomposite (NC) hydrogels obtained by the aqueous solution free radical polymerization of N-vinylpyrrolidone (NVP) in the presence of Laponite XLG (XLG) as a crosslinker, in comparison with the corresponding hydrogels prepared by using two conventional crosslinking divinyl monomers: N,N'-methylenebisacrylamide (MBA) and tri(ethylene glycol) divinyl ether (DVE). The structure and properties of the hydrogels were studied by FTIR, TEM, XRD, SEM, swelling and rheological and compressive mechanical measurements. The results showed that DVE and XLG are much better crosslinking agents for the synthesis of PNVP hydrogels than MBA, leading to larger gel fractions and more homogeneous network hydrogels. The hydrogels crosslinked by either DVE or XLG displayed comparable viscoelastic and compressive mechanical properties under the experimental conditions employed. The properties of the XLG-crosslinked hydrogels steadily improved as the clay content increased. The addition of XLG as a second crosslinker together with a divinyl monomer strongly enhanced the material properties in comparison with the hydrogels crosslinked by only one of the crosslinkers involved. The FTIR analyses suggested that the crosslinking of the NC hydrogels was the result of two different interactions occurring between the clay platelets and the PNVP chains. Laponite XLG displayed a uniform distribution within the NC hydrogels, the clay being mostly exfoliated. However, a small number of platelet agglomerations were still present. The PNVP hydrogels described here may find applications for water purification and in the biomedical field as drug delivery systems or wound dressings.
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Affiliation(s)
- Ionela Alice Podaru
- Department of Bioresources and Polymer Science, Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, 1–7 Gh. Polizu Str., 011061 Bucharest, Romania
- Armament Systems and Mechatronics Department, Military Technical Academy “Ferdinand I”, 39–49 G. Cosbuc Blvd., 050141 Bucharest, Romania
| | - Paul O. Stănescu
- Department of Bioresources and Polymer Science, Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, 1–7 Gh. Polizu Str., 011061 Bucharest, Romania
- Advanced Polymer Materials Group, Politehnica University of Bucharest, 1–7 Gh. Polizu Str., 011061 Bucharest, Romania
| | - Raluca Ginghină
- Chemical Technologies for CBRN Defense Department, Research and Innovation Center for CBRN Defense and Ecology, 225 Olteniţei Ave., 041327 Bucharest, Romania
| | - Ştefania Stoleriu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, 1–7 Gh. Polizu Str., 011061 Bucharest, Romania
| | - Bogdan Trică
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Spl. Independentei 202, 060021 Bucharest, Romania
| | - Raluca Şomoghi
- National Institute for Research and Development in Chemistry and Petrochemistry—ICECHIM, Spl. Independentei 202, 060021 Bucharest, Romania
- Faculty of Petroleum Technology and Petrochemistry, Petroleum and Gas University of Ploiesti, 39 Bucuresti Blvd., 100680 Ploiesti, Romania
| | - Mircea Teodorescu
- Department of Bioresources and Polymer Science, Faculty of Chemical Engineering and Biotechnologies, Politehnica University of Bucharest, 1–7 Gh. Polizu Str., 011061 Bucharest, Romania
- Correspondence: ; Tel.: +40-7-4590-7871
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Singh R, Pal D, Chattopadhyay S. Target-Specific Superparamagnetic Hydrogel with Excellent pH Sensitivity and Reversibility: A Promising Platform for Biomedical Applications. ACS OMEGA 2020; 5:21768-21780. [PMID: 32905505 PMCID: PMC7469382 DOI: 10.1021/acsomega.0c02817] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 08/11/2020] [Indexed: 06/11/2023]
Abstract
Superparamagnetism has been widely used for many biomedical applications, such as early detection of inflammatory cancer and diabetes, magnetic resonance imaging (MRI), hyperthermia, etc., whereas incorporation of superparamagnetism in stimulus-responsive hydrogels has now gained substantial interest and attention for application in these fields. Recently, pH-responsive superparamagnetic hydrogels showing the potential use in disease diagnosis, biosensors, polymeric drug carriers, and implantable devices, have been developed based on the fact that pH is an important environmental factor in the body and some disease states manifest themselves by a change in the pH value. However, improvement in pH sensitivity of magnetic hydrogels is a dire need for their practical applications. In this study, we report the distinctly high pH sensitivity of new synthesized dual-responsive magnetic hydrogel nanocomposites, which was accomplished by copolymerization (free-radical polymerization) of two pH-sensitive monomers, acrylic acid (AA) and vinylsulfonic acid (VSA) with an optimum ratio, in the presence of presynthesized superparamagnetic iron oxide nanoparticles (Fe3O4(OH) x ). The monomers contain pH-sensitive functional groups (COO- and SO3 - for AA and VSA, respectively), and they have also been widely used as biomaterials because of the good biocompatibility. The pH sensitivity of the superparamagnetic hydrogel, poly(acrylic acid-co-vinylsulfonic acid), PAAVSA/Fe3O4, was investigated by swelling studies at different pH values from pH 7 to 1.4. Distinct pH reversibility of the system was also demonstrated through swelling/deswelling analysis. Thermal stability, chemical configuration, magnetic response, and structural properties of the system have been explored by suitable characterization techniques. Furthermore, the study reveals a pH-responsive significant change in the overall morphology and packing fraction of iron oxide nanoparticles in PAAVSA/Fe3O4 via energy-dispersive X-ray (EDX) elemental mapping with the field emission scanning electron microscopy (FESEM) study (for freeze-dried PAAVSA/Fe3O4, swelled at different pH values), implying a drastic change in susceptibility and induced saturation magnetization of the system. These important features could be easily utilized for the purpose of diagnosis using magnetic probe and/or impedance analysis techniques.
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Affiliation(s)
- Rinki Singh
- Discipline
of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore 453552, India
| | - Dipayan Pal
- Discipline
of Physics, Indian Institute of Technology
Indore, Indore 453552, India
| | - Sudeshna Chattopadhyay
- Discipline
of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore 453552, India
- Discipline
of Physics, Indian Institute of Technology
Indore, Indore 453552, India
- Discipline
of Metallurgy Engineering and Materials Science, Indian Institute of Technology Indore, Indore 453552, India
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Timaeva O, Pashkin I, Mulakov S, Kuzmicheva G, Konarev P, Terekhova R, Sadovskaya N, Czakkel O, Prevost S. Synthesis and physico-chemical properties of poly( N-vinyl pyrrolidone)-based hydrogels with titania nanoparticles. JOURNAL OF MATERIALS SCIENCE 2019; 55:3005-3021. [PMID: 32431364 PMCID: PMC7222127 DOI: 10.1007/s10853-019-04230-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 11/13/2019] [Indexed: 06/11/2023]
Abstract
Poly(N-vinyl pyrrolidone) (PVP)-based hydrogels with titania nanoparticles (TN) were synthesized by the sol-gel method for the first time and were characterized in different states (native, freeze-dried, air-dried to constant weight and ground to powder, or swollen to constant weight in H2O or D2O) by various methods such as wide-angle and small-angle X-ray and neutron scattering, neutron spin-echo (NSE) spectroscopy, and scanning electron microscopy. The static (static polymer-polymer correlation length (mesh size), associates of cross-links and PVP microchains) and dynamic (polymer chain relaxation rate, hydrodynamic polymer-polymer correlation length) structural elements were determined. The incorporation of titania nanoparticles into PVP hydrogel slightly increases the size of structural inhomogeneities (an increase in the static and dynamic polymer-polymer correlation length, the formation of associates of cross-links and PVP chains). Titania nanoparticles have an impact on the microstructure of the composite hydrogel and form associates with sizes from 0.5 to 2 µm attached to PVP hydrogel pore walls. The PVP and TN/PVP hydrogels show a high degree of water swelling. Moreover, the presence of titania nanoparticles in TN/PVP increases the number of water adsorption cycles compared to PVP hydrogel. The high swelling degree, bacteria-resistant and antimicrobial properties against Staphylococcus aureus allow considering NT/PVP hydrogels for medical applications as wound coatings.
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Affiliation(s)
- Olesya Timaeva
- MIREA - Russian Technological University, Moscow, Russian Federation 119571
| | - Igor Pashkin
- MIREA - Russian Technological University, Moscow, Russian Federation 119571
| | - Sergey Mulakov
- MIREA - Russian Technological University, Moscow, Russian Federation 119571
| | - Galina Kuzmicheva
- MIREA - Russian Technological University, Moscow, Russian Federation 119571
| | - Petr Konarev
- Shubnikov Institute of Crystallography of Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences, Moscow, Russian Federation 119333
- National Research Centre “Kurchatov Institute”, Moscow, Russian Federation 123098
| | - Raisa Terekhova
- A.V. Vishnevsky Institute of Surgery, Ministry of Health of the Russian Federation, Moscow, Russian Federation 117997
| | - Natalia Sadovskaya
- L.Ya. Karpov Research Institute of Physical Chemistry, Moscow, Russian Federation 103064
| | - Orsolya Czakkel
- Institut Laue-Langevin, CS 20156, 38042 Grenoble Cedex 9, France
| | - Sylvain Prevost
- Institut Laue-Langevin, CS 20156, 38042 Grenoble Cedex 9, France
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An efficient pH sensitive hydrogel, with biocompatibility and high reusability for removal of methylene blue dye from aqueous solution. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.104346] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pan X, Guo X, Choi B, Feng A, Wei X, Thang SH. A facile synthesis of pH stimuli biocompatible block copolymer poly(methacrylic acid)-block-poly(N-vinylpyrrolidone) utilizing switchable RAFT agents. Polym Chem 2019. [DOI: 10.1039/c9py00110g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of block copolymer PMAA-b-PNVP utilizing switchable RAFT agents and its self-assembly.
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Affiliation(s)
- Xiangyu Pan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Xiaofeng Guo
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Bonnie Choi
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Anchao Feng
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- College of Materials Science and Engineering
- Beijing University of Chemical Technology
- Beijing
- China
| | - Xiaohu Wei
- State Key Laboratory of Special Functional Waterproof Materials
- Beijing Oriental Yuhong Waterproof Technology Co
- Ltd
- Beijing 100123
- China
| | - San H. Thang
- School of Chemistry
- Monash University Clayton Campus
- Australia
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Haigh JN, Chuang YM, Farrugia B, Hoogenboom R, Dalton PD, Dargaville TR. Hierarchically Structured Porous Poly(2-oxazoline) Hydrogels. Macromol Rapid Commun 2015; 37:93-99. [DOI: 10.1002/marc.201500495] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 09/11/2015] [Indexed: 12/30/2022]
Affiliation(s)
- Jodie N. Haigh
- Nanotechnology and Molecular Science Discipline; Science and Engineering Faculty; Queensland University of Technology; Queensland 4001 Australia
| | - Ya-mi Chuang
- Nanotechnology and Molecular Science Discipline; Science and Engineering Faculty; Queensland University of Technology; Queensland 4001 Australia
| | - Brooke Farrugia
- Graduate School of Biomedical Engineering; Faculty of Engineering; University of New South Wales; Sydney 2052 Australia
| | - Richard Hoogenboom
- Supramolecular Chemistry Group; Department of Organic and Macromolecular Chemistry; Ghent University; Krijgslaan 281 S4 B-9000 Ghent Belgium
| | - Paul D. Dalton
- Department for Functional Materials in Medicine and Dentistry; Universität Würzburg; Pleicherwall 2 D97070 Germany
| | - Tim R. Dargaville
- Nanotechnology and Molecular Science Discipline; Science and Engineering Faculty; Queensland University of Technology; Queensland 4001 Australia
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Synthesis and Characterization of Chemically Cross-Linked Acrylic Acid/Gelatin Hydrogels: Effect of pH and Composition on Swelling and Drug Release. INT J POLYM SCI 2015. [DOI: 10.1155/2015/187961] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This present work was aimed at synthesizing pH-sensitive cross-linked AA/Gelatin hydrogels by free radical polymerization. Ammonium persulfate and ethylene glycol dimethacrylate (EGDMA) were used as initiator and as cross-linking agent, respectively. Different feed ratios of acrylic acid, gelatin, and EGDMA were used to investigate the effect of monomer, polymer, and degree of cross-linking on swelling and release pattern of the model drug. The swelling behavior of the hydrogel samples was studied in 0.05 M USP phosphate buffer solutions of various pH values pH 1.2, pH 5.5, pH 6.5, and pH 7.5. The prepared samples were evaluated for porosity and sol-gel fraction analysis. Pheniramine maleate used for allergy treatment was loaded as model drug in selected samples. The release study of the drug was investigated in 0.05 M USP phosphate buffer of varying pH values (1.2, 5.5, and 7.5) for 12 hrs. The release data was fitted to various kinetic models to study the release mechanism. Hydrogels were characterized by Fourier transformed infrared (FTIR) spectroscopy which confirmed formation of structure. Surface morphology of unloaded and loaded samples was studied by surface electron microscopy (SEM), which confirmed the distribution of model drug in the gel network.
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Chemically cross-linked poly(acrylic-co-vinylsulfonic) acid hydrogel for the delivery of isosorbide mononitrate. ScientificWorldJournal 2013; 2013:340737. [PMID: 24250265 PMCID: PMC3821952 DOI: 10.1155/2013/340737] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 09/10/2013] [Indexed: 11/18/2022] Open
Abstract
We report synthesis, characterization, and drug release attributes of a series of novel pH-sensitive poly(acrylic-co-vinylsulfonic) acid hydrogels. These hydrogels were prepared by employing free radical polymerization using ethylene glycol dimethacrylate (EGDMA) and benzyl peroxide (BPO) as cross-linker and initiator, respectively. Effect of acrylic acid (AA), polyvinylsulfonic acid (PVSA), and EGDMA on prepared hydrogels was investigated. All formulations showed higher swelling at high pHs and vice versa. Formulations containing higher content of AA and EGDMA show reduced swelling, but one with higher content of PVSA showed increased swelling. Hydrogel network was characterized by determining structural parameters and loaded with isosorbide mononitrate. FTIR confirmed absence of drug polymer interaction while DSC and TGA demonstrated molecular dispersion of drug in a thermally stable polymeric network. All the hydrogel formulations exhibited a pH dependent release of isosorbide mononitrate which was found to be directly proportional to pH of the medium and PVSA content and inversely proportional to the AA contents. Drug release data were fitted to various kinetics models. Results indicated that release of isosorbide mononitrate from poly(AA-co-VSA) hydrogels was non-Fickian and that the mechanism was diffusion-controlled.
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Sahiner N, Karakoyun N, Sahan T, Butun S, Aktas N. Reusable Soft Hydrogels for Gold Recovery from Acidic Environments. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2012.710704] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hoo SP, Loh QL, Yue Z, Fu J, Tan TTY, Choong C, Chan PPY. Preparation of a soft and interconnected macroporous hydroxypropyl cellulose methacrylate scaffold for adipose tissue engineering. J Mater Chem B 2013; 1:3107-3117. [DOI: 10.1039/c3tb00446e] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Liu X, Xu Y, Wu Z, Chen H. Poly(N-vinylpyrrolidone)-Modified Surfaces for Biomedical Applications. Macromol Biosci 2012; 13:147-54. [DOI: 10.1002/mabi.201200269] [Citation(s) in RCA: 150] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2012] [Revised: 09/27/2012] [Indexed: 12/22/2022]
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12
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Singh R, Singh D. Radiation synthesis of PVP/alginate hydrogel containing nanosilver as wound dressing. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:2649-2658. [PMID: 22886579 DOI: 10.1007/s10856-012-4730-3] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 07/23/2012] [Indexed: 05/27/2023]
Abstract
Hydrogels with polyvinyl pyrrolidone (PVP) and alginate were synthesized and silver nanoparticles were incorporated in hydrogel network using gamma radiation. PVP (10 and 15 %) in combination with 0.5 and 1 % alginate was gamma irradiated at different doses of 25 and 40 kGy. Maximum gel percent was obtained with 15 % PVP in combination with 0.5 % alginate. The fluid absorption capacity for the PVP/alginate hydrogels was about 1881-2361 % at 24 h. Moisture vapour transmission rate (MVTR) of hydrogels containing nanosilver at 24 h was 278.44 g/(m(2)h). The absorption capacity and moisture permeability of the PVP/alginate-nanosilver composite hydrogel dressings show the ability of the hydrogels to prevent fluid accumulation in exudating wound. The hydrogels containing nanosilver demonstrated strong antimicrobial effect and complete inhibition of microbial growth was observed with 70 ppm nanosilver dressings. PVP/alginate hydrogels containing nanosilver with efficient fluid handling capacity and antimicrobial activity was found suitable for use as wound dressing.
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Affiliation(s)
- Rita Singh
- Radiation Dosimetry and Processing Group, Defence Laboratory, Defence Research and Development Organization, Jodhpur, India.
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Bardajee GR, Hooshyar Z, Zehtabi F, Pourjavadi A. A superabsorbent hydrogel network based on poly((2-dimethylaminoethyl) methacrylate) and sodium alginate obtained by γ-radiation: synthesis and characterization. IRANIAN POLYMER JOURNAL 2012. [DOI: 10.1007/s13726-012-0089-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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14
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Abd El-Mohdy HL. Controlled release of testosterone propionate based on poly N-vinyl pyrrolidone/2-acrylamido-2-methyl-1-propanesulfonic acid hydrogels prepared by ionizing radiation. JOURNAL OF POLYMER RESEARCH 2012. [DOI: 10.1007/s10965-012-9931-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim Y, Liemmawal ED, Pourgholami MH, Morris DL, Stenzel MH. Comparison of Shell-Cross-Linked Micelles with Soft and Glassy Cores as a Drug Delivery Vehicle for Albendazole: Is There a Difference in Performance? Macromolecules 2012. [DOI: 10.1021/ma300644v] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yoseop Kim
- Centre
for Advanced Macromolecular Design (CAMD) and ‡Cancer Research Laboratories, Department
of Surgery, St. George Hospital, University of New South Wales, Sydney NSW 2052, Australia
| | - Elviana D. Liemmawal
- Centre
for Advanced Macromolecular Design (CAMD) and ‡Cancer Research Laboratories, Department
of Surgery, St. George Hospital, University of New South Wales, Sydney NSW 2052, Australia
| | - Mohammad H. Pourgholami
- Centre
for Advanced Macromolecular Design (CAMD) and ‡Cancer Research Laboratories, Department
of Surgery, St. George Hospital, University of New South Wales, Sydney NSW 2052, Australia
| | - David L. Morris
- Centre
for Advanced Macromolecular Design (CAMD) and ‡Cancer Research Laboratories, Department
of Surgery, St. George Hospital, University of New South Wales, Sydney NSW 2052, Australia
| | - Martina H. Stenzel
- Centre
for Advanced Macromolecular Design (CAMD) and ‡Cancer Research Laboratories, Department
of Surgery, St. George Hospital, University of New South Wales, Sydney NSW 2052, Australia
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