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Li J, Hao Y, Wang H, Zhang M, He J, Ni P. Advanced Biomaterials Derived from Functional Polyphosphoesters: Synthesis, Properties, and Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2024; 16:51876-51898. [PMID: 39311719 DOI: 10.1021/acsami.4c11899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2024]
Abstract
Polyphosphoesters (PPEs) represent an innovative class of biodegradable polymers, with the phosphate ester serving as the core repeating unit of their polymeric backbone. Recently, biomaterials derived from functionalized PPEs have garnered significant interest in biomedical applications because of their commendable biocompatibility, biodegradability, and the capacity for functional modification. This review commences with a brief overview of synthesis methodologies and the distinctive properties of PPEs, including thermoresponsiveness, degradability, stealth effect, and biocompatibility. Subsequently, the review delves into the latest applications of PPEs-based nanocarriers for drug or gene delivery and PPEs-based polymeric prodrugs and scaffolds in the biomedical field, presenting several illustrative examples for each application. By encapsulating the advancements of recent years, this review aims to offer an enhanced understanding and serve as a reference for the synthesis and biomedical applications of functional PPEs.
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Affiliation(s)
- Jintao Li
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou, Jiangsu 215123, China
| | - Ying Hao
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
| | - Hairong Wang
- Children's Hospital of Soochow University, Pediatric Research Institute of Soochow University, Suzhou, Jiangsu 215123, China
| | - Mingzu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jinlin He
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou, Jiangsu 215123, China
| | - Peihong Ni
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou, Jiangsu 215123, China
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Mohammed A, Jiménez A, Bidare P, Elshaer A, Memic A, Hassanin H, Essa K. Review on Engineering of Bone Scaffolds Using Conventional and Additive Manufacturing Technologies. 3D PRINTING AND ADDITIVE MANUFACTURING 2024; 11:1418-1440. [PMID: 39360139 PMCID: PMC11443118 DOI: 10.1089/3dp.2022.0360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/04/2024]
Abstract
Bone is a complex connective tissue that serves as mechanical and structural support for the human body. Bones' fractures are common, and the healing process is physiologically complex and involves both mechanical and biological aspects. Tissue engineering of bone scaffolds holds great promise for the future treatment of bone injuries. However, conventional technologies to prepare bone scaffolds cannot provide the required properties of human bones. Over the past decade, three-dimensional (3D) printing or additive manufacturing technologies have enabled control over the creation of bone scaffolds with personalized geometries, appropriate materials, and tailored pores. This article aims to review recent advances in the fabrication of bone scaffolds for bone repair and regeneration. A detailed review of bone fracture repair and an in-depth discussion on conventional manufacturing and 3D printing techniques are introduced with an emphasis on novel studies concepts, potentials, and limitations.
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Affiliation(s)
- Abdullah Mohammed
- School of Engineering, University of Birmingham, Birmingham, United Kingdom
| | - Amaia Jiménez
- TECNUN Escuela de Ingeniería, Universidad de Navarra, Manuel de Lardizábal San Sebastián, Spain
| | - Prveen Bidare
- School of Engineering, University of Birmingham, Birmingham, United Kingdom
| | - Amr Elshaer
- Drug Discovery, Delivery and Patient Care (DDDPC), School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston Upon Thames, Surrey, United Kingdom
| | - Adnan Memic
- Research Center of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hany Hassanin
- School of Engineering, Technology, and Design, Canterbury Christ Church University, Canterbury, United Kingdom
| | - Khamis Essa
- School of Engineering, University of Birmingham, Birmingham, United Kingdom
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Rheinberger T, Deuker M, Wurm FR. The microstructure of polyphosphoesters controls polymer hydrolysis kinetics from minutes to years. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Baljit Singh, Sharma V, Kumari A. Synthesis and Characterization of Sterculia Gum Polysaccharide-Poly(bis[2-methacryloyloxy]ethyl Phosphate Copolymeric Network Hydrogels for Use in Drug Delivery. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422700634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
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Ishihara K, Kaneyasu M, Fukazawa K, Zhang R, Teramura Y. Induction of mesenchymal stem cell differentiation by co-culturing with mature cells in double-layered 2-methacryloyloxyethyl phosphorylcholine polymer hydrogel matrices. J Mater Chem B 2021; 10:2561-2569. [PMID: 34878485 DOI: 10.1039/d1tb01817e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The effects of differentiated cells on stem cell differentiation were analyzed via co-culturing using a cell-encapsulated double-layered hydrogel system. As a polymer hydrogel matrix, a water-soluble zwitterionic polymer having both a 2-methacryloyloxyethyl phosphorylcholine unit and a p-vinylphenylboronic acid unit (PMBV), was complexed spontaneously with poly(vinyl alcohol) (PVA) under mild cell culture conditions. The creep modulus of the hydrogel was controlled by changing the composition of the polymer in the solution. Mouse mesenchymal stem cells (MSCs), C3H10T1/2 cells, were encapsulated into PMBV/PVA hydrogels and cultured. In the PMBV/PVA hydrogel with a lower creep modulus (0.40 kPa), proliferation of C3H10T1/2 cells occurred, and the formation of cell aggregates was observed. On the other hand, a higher creep modulus (1.7 kPa) of the hydrogel matrix prevented cell proliferation. Culturing C3H10T1/2 cells encapsulated in the PMBV/PVA hydrogel in the presence of bone morphogenetic protein-2 increased the activity of intracellular alkaline phosphatase (ALP). This indicated that C3H10T1/2 cells differentiated into mature osteoblasts. When the C3H10T1/2 cells encapsulated in the PMBV/PVA hydrogel were cultured in combination with the mature osteoblasts in the hydrogel by a close contacting double-layered hydrogel structure, higher ALP activity was observed compared with the cells cultured separately. It was considered that the differentiation of C3H10T1/2 cells in the hydrogel layer was induced by cytokines diffused from mature osteoblasts encapsulated in another hydrogel layer. It could be concluded that the PMBV/PVA hydrogel system provides a good way to observe the effects of the surrounding cells on cell function in three-dimensional culture.
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Affiliation(s)
- Kazuhiko Ishihara
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. .,Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Miu Kaneyasu
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Kyoko Fukazawa
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Ren Zhang
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuji Teramura
- Department of Bioengineering, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Chimisso V, Aleman Garcia MA, Yorulmaz Avsar S, Dinu IA, Palivan CG. Design of Bio-Conjugated Hydrogels for Regenerative Medicine Applications: From Polymer Scaffold to Biomolecule Choice. Molecules 2020; 25:E4090. [PMID: 32906772 PMCID: PMC7571016 DOI: 10.3390/molecules25184090] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/28/2020] [Accepted: 09/04/2020] [Indexed: 12/26/2022] Open
Abstract
Bio-conjugated hydrogels merge the functionality of a synthetic network with the activity of a biomolecule, becoming thus an interesting class of materials for a variety of biomedical applications. This combination allows the fine tuning of their functionality and activity, whilst retaining biocompatibility, responsivity and displaying tunable chemical and mechanical properties. A complex scenario of molecular factors and conditions have to be taken into account to ensure the correct functionality of the bio-hydrogel as a scaffold or a delivery system, including the polymer backbone and biomolecule choice, polymerization conditions, architecture and biocompatibility. In this review, we present these key factors and conditions that have to match together to ensure the correct functionality of the bio-conjugated hydrogel. We then present recent examples of bio-conjugated hydrogel systems paving the way for regenerative medicine applications.
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Affiliation(s)
| | | | | | | | - Cornelia G. Palivan
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR-1096, 4058 Basel, Switzerland; (V.C.); (M.A.A.G.); (S.Y.A.); (I.A.D.)
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Najafi M, Asadi H, van den Dikkenberg J, van Steenbergen MJ, Fens MHAM, Hennink WE, Vermonden T. Conversion of an Injectable MMP-Degradable Hydrogel into Core-Cross-Linked Micelles. Biomacromolecules 2020; 21:1739-1751. [PMID: 31945299 PMCID: PMC7218746 DOI: 10.1021/acs.biomac.9b01675] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/16/2020] [Indexed: 01/01/2023]
Abstract
In this study, a new type of injectable hydrogel called "HyMic" that can convert into core cross-linked (CCL) micelles upon exposure to matrix metalloproteinases (MMP's), was designed and developed for drug delivery applications. HyMic is composed of CCL micelles connected via an enzyme cleavable linker. To this end, two complementary ABA block copolymers with polyethylene glycol (PEG) as B block were synthesized using atom transfer radical polymerization (ATRP). The A blocks were composed of a random copolymer of N-isopropylacrylamide (NIPAM) and either N-(2-hydroxypropyl)methacrylamide-cysteine (HPMA-Cys) or N-(2-hydroxypropyl) methacrylamide-ethylthioglycolate succinic acid (HPMA-ETSA). Mixing the aqueous solutions of the obtained polymers and rising the temperature above the cloud point of the PNIPAM block resulted in the self-assembly of these polymers into flower-like micelles composed of a hydrophilic PEG shell and hydrophobic core. The micellar core was cross-linked by native chemical ligation between the cysteine (in HPMA-Cys) and thioester (in HPMA-ETSA) functionalities. A slight excess of thioester to cysteine groups (molar ratio 3:2) was used to allow further chemical reactions exploiting the unreacted thioester groups. The obtained micelles displayed a Z-average diameter of 80 ± 1 nm (PDI 0.1), and ζ-potential of -4.2 ± 0.4 mV and were linked using two types of pentablock copolymers of P(NIPAM-co-HPMA-Cys)-PEG-peptide-PEG-P(NIPAM-co-HPMA-Cys) (Pep-NC) to yield hydrogels. The pentablock copolymers were synthesized using a PEG-peptide-PEG ATRP macroinitiator and the peptide midblock (lysine-glycine-proline-glutamine-isoleucine-phenylalanine-glycine-glutamine-lysine (Lys-Gly-Pro-Gln-Gly-Ile-Phe-Gly-Gln-Lys)) consisted of either l- or d-amino acids (l-Pep-NC or d-Pep-NC), of which the l-amino acid sequence is a substrate for matrix metalloproteases 2 and 9 (MMPs 2 and 9). Upon mixing of the CCL micelles and the linker (l/d-Pep-NC), the cysteine functionalities of the l/d-Pep-NC reacted with remaining thioester moieties in the micellar core via native chemical ligation yielding a hydrogel within 160 min as demonstrated by rheological measurements. As anticipated, the gel cross-linked with l-Pep-NC was degraded in 7-45 days upon exposure to metalloproteases in a concentration-dependent manner, while the gel cross-linked with the d-Pep-NC remained intact even after 2 months. Dynamic light scattering analysis of the release medium revealed the presence of nanoparticles with a Z-average diameter of ∼120 nm (PDI < 0.3) and ζ-potential of ∼-3 mV, indicating release of core cross-linked micelles upon HyMic exposure to metalloproteases. An in vitro study demonstrated that the released CCL micelles were taken up by HeLa cells. Therefore, HyMic as an injectable and enzyme degradable hydrogel displaying controlled and on-demand release of CCL micelles has potential for intracellular drug delivery in tissues with upregulation of MMPs, for example, in cancer tissues.
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Affiliation(s)
- Marzieh Najafi
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Hamed Asadi
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
- Polymer
Laboratory, Chemistry Department, School of Science, University of Tehran, Tehran, Iran
| | - Joep van den Dikkenberg
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Mies J. van Steenbergen
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Marcel H. A. M. Fens
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Wim E. Hennink
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
| | - Tina Vermonden
- Department
of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS),
Science for Life, Faculty of Science, Utrecht
University, P.O. Box 80082, 3508 TB Utrecht, The Netherlands
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8
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Spontaneously and reversibly forming phospholipid polymer hydrogels as a matrix for cell engineering. Biomaterials 2020; 230:119628. [DOI: 10.1016/j.biomaterials.2019.119628] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 11/11/2019] [Accepted: 11/11/2019] [Indexed: 12/16/2022]
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9
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Endocytosis of poly(ethylene sodium phosphate) by macrophages and the effect of polymer length on cellular uptake. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Kunomura S, Iwasaki Y. Immobilization of polyphosphoesters on poly(ether ether ketone) (PEEK) for facilitating mineral coating. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:861-876. [PMID: 31013199 DOI: 10.1080/09205063.2019.1595305] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Poly(ether ether ketone) (PEEK) is an alternative material to metals for orthopedic applications. However, the compatibility of PEEK with hard tissues needs to be improved. To address this issue, this study proposes a novel technique for PEEK surface modifications. A polyphosphodiester macromonomer (PEPMA·Na) was synthesized via the demethylation of polyphosphotriester macromonomer obtained via the ring-opening polymerization of cyclic phosphoesters using 2-hydroxypropyl methacrylamide as the initiator. The surface modification of PEEK was performed via photoinduced and self-initiated graft polymerization of PEPMA·Na without using any photoinitiators. The amount of phosphorus due to poly(PEPMA·Na) immobilized on PEEK increased with an increase in the photoirradiation time. The PEEK surface turned hydrophilic due to poly(PEPMA·Na) grafting, with almost similar advancing and receding contact angles, implying that the modified PEEK surface (PEEK-g-poly(PEPMA·Na)) was homogeneous. Specimens were mineral coated by simple static soaking in ×1.5 simulated body fluid (1.5SBF) and by an alternative process that included additional soaking steps in 200 mM CaCl2 aq. and 200 mM K2HPO4 aq. before static soaking in 1.5SBF. Specimens were immersed in 1.5SBF for 28 days in simple static soaking, after which the PEEK-g-poly(PEPMA·Na) surface was completely covered with spherical cauliflower-like mineral deposits that resembled octacalcium phosphate (OCP). Their structural similarities were confirmed via X-ray diffraction (XRD), energy dispersive X-ray spectrometry (EDS), and X-ray fluorescence (XRF) analyses. However, these mineral deposits were not observed on the bare PEEK surface. Due to the additional soaking steps (alternative soaking) undertaken before the static soaking of the specimens in 1.5SBF, the mineral coating on the PEEK-g-poly(PEPMA·Na) was dramatically accelerated and the surface was fully covered with mineral deposits in only one day of soaking. The mineral deposits resulting from both the soaking processes had similar structures. Compared with bare PEEK, osteoblastic MC3T3-E1 cells proliferated more actively on mineral-coated PEEK-g-poly(PEPMA·Na). Thus, the surface immobilization of poly(PEPMA·Na) on a PEEK surface is effective for mineral coating and may be useful to provide hard-tissue compatibility on PEEK.
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Affiliation(s)
- Shun Kunomura
- a Department of Chemistry and Materials Engineering , Faculty of Chemistry, Materials and Bioengineering, Kansai University , Osaka , Japan
| | - Yasuhiko Iwasaki
- a Department of Chemistry and Materials Engineering , Faculty of Chemistry, Materials and Bioengineering, Kansai University , Osaka , Japan
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Abstract
This microreview details recent developments in stimuli-responsive polymers with phosphorus in the main-chain, in particular polyphosphazenes and polyphosphoesters. The presence of phosphorus in the polymers endows unique properties onto the macromolecules, which can be utilized for the preparation of materials capable of physically responding to specific stimuli. Achieving the desired responsiveness has been much facilitated by recent developments in synthetic polymer chemistry, in particular controlled synthesis and backbone functionalization phosphorus-based polymers, in order to achieve the required properties and hence responsiveness of the materials. The development of phosphorus-based polymers which respond to the most important stimuli are discussed, namely, pH, oxidation, reduction, temperature and biological triggers. The polymers are placed in the context not just of each other but also with reference to state-of-the-art organic polymers.
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Affiliation(s)
- Ian Teasdale
- Institute of Polymer ChemistryJohannes Kepler University LinzAltenberger Straße 694040LinzAustria
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Karmakar P, Gaitonde V. Promising Recent Strategies with Potential Clinical Translational Value to Combat Antibacterial Resistant Surge. MEDICINES (BASEL, SWITZERLAND) 2019; 6:E21. [PMID: 30709019 PMCID: PMC6473725 DOI: 10.3390/medicines6010021] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/10/2019] [Accepted: 01/26/2019] [Indexed: 12/27/2022]
Abstract
Multiple drug resistance (MDR) for the treatment of bacterial infection has been a significant challenge since the beginning of the 21st century. Many of the small molecule-based antibiotic treatments have failed on numerous occasions due to a surge in MDR, which has claimed millions of lives worldwide. Small particles (SPs) consisting of metal, polymer or carbon nanoparticles (NPs) of different sizes, shapes and forms have shown considerable antibacterial effect over the past two decades. Unlike the classical small-molecule antibiotics, the small particles are less exposed so far to the bacteria to trigger a resistance mechanism, and hence have higher chances of fighting the challenge of the MDR process. Until recently, there has been limited progress of clinical treatments using NPs, despite ample reports of in vitro antibacterial efficacy. In this review, we discuss some recent and unconventional strategies that have explored the antibacterial efficacy of these small particles, alone and in combination with classical small molecules in vivo, and demonstrate possibilities that are favorable for clinical translations in near future.
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Affiliation(s)
- Partha Karmakar
- Department of Radiology, Washington University School of Medicine, St. Louis, MO 63110, USA.
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Nakhjiri MT, Bagheri Marandi G, Kurdtabar M. Effect of bis[2-(methacryloyloxy)ethyl] phosphate as a crosslinker on poly(AAm-co-AMPS)/Na-MMT hydrogel nanocomposite as potential adsorbent for dyes: kinetic, isotherm and thermodynamic study. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1625-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Becker G, Wurm FR. Functional biodegradable polymers via ring-opening polymerization of monomers without protective groups. Chem Soc Rev 2018; 47:7739-7782. [PMID: 30221267 DOI: 10.1039/c8cs00531a] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Biodegradable polymers are of current interest and chemical functionality in such materials is often demanded in advanced biomedical applications. Functional groups often are not tolerated in the polymerization process of ring-opening polymerization (ROP) and therefore protective groups need to be applied. Advantageously, several orthogonally reactive functions are available, which do not demand protection during ROP. We give an insight into available, orthogonally reactive cyclic monomers and the corresponding functional synthetic and biodegradable polymers, obtained from ROP. Functionalities in the monomer are reviewed, which are tolerated by ROP without further protection and allow further post-modification of the corresponding chemically functional polymers after polymerization. Synthetic concepts to these monomers are summarized in detail, preferably using precursor molecules. Post-modification strategies for the reported functionalities are presented and selected applications highlighted.
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Affiliation(s)
- Greta Becker
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
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16
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Iwasaki Y, Yokota A, Otaka A, Inoue N, Yamaguchi A, Yoshitomi T, Yoshimoto K, Neo M. Bone-targeting poly(ethylene sodium phosphate). Biomater Sci 2018; 6:91-95. [PMID: 29184942 DOI: 10.1039/c7bm00930e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Poly(ethylene sodium phosphate) (PEP·Na) showed excellent cytocompatibility and in vivo bone affinity. Moreover, PEP·Na did not interact with thrombin, which is a coagulation-related protein. Because immobilization of therapeutic agents and imaging probes on PEP·Na is easily performed, PEP·Na is a promising polymer for bone-targeted therapies.
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Affiliation(s)
- Yasuhiko Iwasaki
- Department of Chemistry and Materials Engineering, Kansai University, 3-3-35, Yamate-cho, Suita-shi, Osaka 564-8680, Japan.
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Borguet Y, Khan S, Noel A, Gunsten SP, Brody SL, Elsabahy M, Wooley KL. Development of Fully Degradable Phosphonium-Functionalized Amphiphilic Diblock Copolymers for Nucleic Acids Delivery. Biomacromolecules 2018; 19:1212-1222. [PMID: 29526096 PMCID: PMC5894060 DOI: 10.1021/acs.biomac.8b00069] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 02/23/2018] [Indexed: 11/29/2022]
Abstract
To expand the range of functional polymer materials to include fully hydrolytically degradable systems that bear bioinspired phosphorus-containing linkages both along the backbone and as cationic side chain moieties for packaging and delivery of nucleic acids, phosphonium-functionalized polyphosphoester- block-poly(l-lactide) copolymers of various compositions were synthesized, fully characterized, and their self-assembly into nanoparticles were studied. First, an alkyne-functionalized polyphosphoester- block-poly(l-lactide) copolymer was synthesized via a one pot sequential ring opening polymerization of an alkyne-functionalized phospholane monomer, followed by the addition of l-lactide to grow the second block. Second, the alkynyl side groups of the polyphosphoester block were functionalized via photoinitiated thiol-yne radical addition of a phosphonium-functionalized free thiol. The polymers of varying phosphonium substitution degrees were self-assembled in aqueous buffers to afford formation of well-defined core-shell assemblies with an average size ranging between 30 and 50 nm, as determined by dynamic light scattering. Intracellular delivery of the nanoparticles and their effects on cell viability and capability at enhancing transfection efficiency of nucleic acids (e.g., siRNA) were investigated. Cell viability assays demonstrated limited toxicity of the assembly to RAW 264.7 mouse macrophages, except at high polymer concentrations, where the polymer of high degree of phosphonium functionalization induced relatively higher cytotoxicity. Transfection efficiency was strongly affected by the phosphonium-to-phosphate (P+/P-) ratios of the polymers and siRNA, respectively. The AllStars Hs Cell Death siRNA complexed to the various copolymers at a P+/P- ratio of 10:1 induced comparable cell death to Lipofectamine. These fully degradable nanoparticles might provide biocompatible nanocarriers for therapeutic nucleic acid delivery.
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Affiliation(s)
- Yannick
P. Borguet
- Departments
of Chemistry, Chemical Engineering, and Materials Science & Engineering,
and the Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Sarosh Khan
- Departments
of Chemistry, Chemical Engineering, and Materials Science & Engineering,
and the Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Amandine Noel
- Departments
of Chemistry, Chemical Engineering, and Materials Science & Engineering,
and the Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
| | - Sean P. Gunsten
- Department
of Medicine, Washington University, St. Louis, Missouri 63110, United States
| | - Steven L. Brody
- Department
of Medicine, Washington University, St. Louis, Missouri 63110, United States
- Department
of Radiology, Washington University, St. Louis, Missouri 63110, United States
| | - Mahmoud Elsabahy
- Departments
of Chemistry, Chemical Engineering, and Materials Science & Engineering,
and the Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
- Department
of Pharmaceutics, Faculty of Pharmacy, Assiut International Center
of Nanomedicine, Alrajhy Liver Hospital, Assiut University, Assiut 71515, Egypt
| | - Karen L. Wooley
- Departments
of Chemistry, Chemical Engineering, and Materials Science & Engineering,
and the Laboratory for Synthetic-Biologic Interactions, Texas A&M University, College Station, Texas 77842, United States
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Bauer KN, Tee HT, Velencoso MM, Wurm FR. Main-chain poly(phosphoester)s: History, syntheses, degradation, bio-and flame-retardant applications. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2017.05.004] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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19
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Eswaramma S, Reddy NS, Rao KSVK. Phosphate crosslinked pectin based dual responsive hydrogel networks and nanocomposites: Development, swelling dynamics and drug release characteristics. Int J Biol Macromol 2017; 103:1162-1172. [PMID: 28576553 DOI: 10.1016/j.ijbiomac.2017.05.160] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 05/17/2017] [Accepted: 05/27/2017] [Indexed: 01/08/2023]
Abstract
Potential dual responsive hydrogel networks (PPAD) are fabricated from pectin, poly((2-dimethylamino)ethyl methacrylate)) and phosphate crosslinker bis[2-methacryloyloxy] ethyl phosphate (BMEP) by a simple free radical polymerization. These hydrogel networks are successfully utilized for encapsulation of an anti-cancer drug, 5-fluorouracil (5-FU) and also employed as versatile platforms for production of silver nanoparticles. Fabricated hydrogel networks and silver nanocomposites were characterized by FTIR, SEM, EDX, TEM, DLS, DSC, TGA and XRD. Different polymer network parameters such as MC¯, χ, ξ and υe and diffusion constant (D) were evaluated to assess the drug release profile. The 5FU loaded PPAD hydrogels were used to perform in vitro release studies in both gastric and intestinal conditions of GIT (pH 1.2 & pH 7.4) at two different temperatures (25 and 37°C). On the other hand various kinetic models (zero, first, Higuchi & Koresmeyer-Peppas) have also been employed to fit drug release profile. In addition, the antibacterial activity of PPAD silver nanocomposites were tested against four bacterial species Escherichia coli (-ve), Klebsiella pneumoniae (-ve), Bacillus cereus (+ve) and Staphylococcus aereus (+ve) using zone of inhibition test.
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Affiliation(s)
- S Eswaramma
- Polymer Biomaterial Design and Synthesis Laboratory, Department of Chemistry, Yogi Vemana University, Kadapa, Andhra Pradesh, 516003, India
| | - N Sivagangi Reddy
- Advanced Nanomaterials Lab, Department of Polymer Science and Engineering, Pusan National University, Busan 46241, South Korea
| | - K S V Krishna Rao
- Polymer Biomaterial Design and Synthesis Laboratory, Department of Chemistry, Yogi Vemana University, Kadapa, Andhra Pradesh, 516003, India.
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20
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Abdallah MN, Abdollahi S, Laurenti M, Fang D, Tran SD, Cerruti M, Tamimi F. Scaffolds for epithelial tissue engineering customized in elastomeric molds. J Biomed Mater Res B Appl Biomater 2017; 106:880-890. [PMID: 28419685 DOI: 10.1002/jbm.b.33897] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 02/28/2017] [Accepted: 03/28/2017] [Indexed: 02/06/2023]
Abstract
Restoration of soft tissue defects remains a challenge for surgical reconstruction. In this study, we introduce a new approach to fabricate poly(d,l-lactic acid) (PDLLA) scaffolds with anatomical shapes customized to regenerate three-dimensional soft tissue defects. Highly concentrated polymer/salt mixtures were molded in flexible polyether molds. Microcomputed tomography showed that with this approach it was possible to produce scaffolds with clinically acceptable volume ratio maintenance (>90%). Moreover, this technique allowed us to customize the average pore size and pore interconnectivity of the scaffolds by using variations of salt particle size. In addition, this study demonstrated that with the increasing porosity and/or the decreasing of the average pore size of the PDLLA scaffolds, their mechanical properties decrease and they degrade more slowly. Cell culture results showed that PDLLA scaffolds with an average pore size of 100 µm enhance the viability and proliferation rates of human gingival epithelial cells up to 21 days. The simple method proposed in this article can be extended to fabricate porous scaffolds with customizable anatomical shapes and optimal pore structure for epithelial tissue engineering. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 880-890, 2018.
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Affiliation(s)
| | - Sara Abdollahi
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec, Canada
| | - Marco Laurenti
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | - Dongdong Fang
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada.,Craniofacial Stem Cells and Tissue Engineering Laboratory, McGill University, Montreal, Quebec, Canada
| | - Simon D Tran
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada.,Craniofacial Stem Cells and Tissue Engineering Laboratory, McGill University, Montreal, Quebec, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montreal, Quebec, Canada
| | - Faleh Tamimi
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
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21
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Zhang L, Shi D, Shi C, Dong L, Li X, Chen M. Controllable Synthesis of Multiarm Star-Shaped Copolymers Composed of Phosphoester Chains and Their Application on Drug Delivery. Macromol Biosci 2017; 17. [DOI: 10.1002/mabi.201600522] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/21/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Li Zhang
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi Jiangsu 214122 China
| | - Dongjian Shi
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi Jiangsu 214122 China
| | - Chunling Shi
- School of Chemistry and Chemical Engineering; Xuzhou Institute of Technology; Xuzhou Jiangsu 221111 China
| | - Liangliang Dong
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi Jiangsu 214122 China
| | - Xiaojie Li
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi Jiangsu 214122 China
| | - Mingqing Chen
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; 1800 Lihu Road Wuxi Jiangsu 214122 China
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22
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Henke H, Brüggemann O, Teasdale I. Branched Macromolecular Architectures for Degradable, Multifunctional Phosphorus-Based Polymers. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201600644] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/10/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Helena Henke
- Institute of Polymer Chemistry; Johannes Kepler University Linz; Altenberger Straße 69 4040 Linz Austria
| | - Oliver Brüggemann
- Institute of Polymer Chemistry; Johannes Kepler University Linz; Altenberger Straße 69 4040 Linz Austria
| | - Ian Teasdale
- Institute of Polymer Chemistry; Johannes Kepler University Linz; Altenberger Straße 69 4040 Linz Austria
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23
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Tian H, Du J, Wen J, Liu Y, Montgomery SR, Scott TP, Aghdasi B, Xiong C, Suzuki A, Hayashi T, Ruangchainikom M, Phan K, Weintraub G, Raed A, Murray SS, Daubs MD, Yang X, Yuan XB, Wang JC, Lu Y. Growth-Factor Nanocapsules That Enable Tunable Controlled Release for Bone Regeneration. ACS NANO 2016; 10:7362-7369. [PMID: 27227573 DOI: 10.1021/acsnano.5b07950] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Growth factors are of great potential in regenerative medicine. However, their clinical applications are largely limited by the short in vivo half-lives and the narrow therapeutic window. Thus, a robust controlled release system remains an unmet medical need for growth-factor-based therapies. In this research, a nanoscale controlled release system (degradable protein nanocapsule) is established via in situ polymerization on growth factor. The release rate can be finely tuned by engineering the surface polymer composition. Improved therapeutic outcomes can be achieved with growth factor nanocapsules, as illustrated in spinal cord fusion mediated by bone morphogenetic protein-2 nanocapsules.
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Affiliation(s)
- Haijun Tian
- Department of Surgery, Bethune School of Medics , Shijiazhuang 050000, China
- Department of Orthopaedic Surgery, Changzheng Hospital, Second Military Medical University , Shanghai 200003, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Samuel S Murray
- Research Service, VA Greater Los Angeles Healthcare System , North Hills, California 91343, United States
| | - Michael D Daubs
- Division of Orthopaedic Surgery, Department of Surgery, University of Nevada School of Medicine , Las Vegas, Nevada 89102, United States
| | - Xianjin Yang
- Department of Material Science, Tianjin University , Tianjin 300072, China
| | - Xu-Bo Yuan
- Department of Material Science, Tianjin University , Tianjin 300072, China
| | - Jeffrey C Wang
- Department of Orthopaedic Surgery, University of Southern California , Los Angeles, California 90033, United States
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24
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Lin KF, He S, Song Y, Wang CM, Gao Y, Li JQ, Tang P, Wang Z, Bi L, Pei GX. Low-Temperature Additive Manufacturing of Biomimic Three-Dimensional Hydroxyapatite/Collagen Scaffolds for Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2016; 8:6905-16. [PMID: 26930140 DOI: 10.1021/acsami.6b00815] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Low-temperature additive manufacturing (AM) holds promise for fabrication of three-dimensional (3D) scaffolds containing bioactive molecules and/or drugs. Due to the strict technical limitations of current approaches, few materials are suitable for printing at low temperature. Here, a low-temperature robocasting method was employed to print biomimic 3D scaffolds for bone regeneration using a routine collagen-hydroxyapatite (CHA) composite material, which is too viscous to be printed via normal 3D printing methods at low temperature. The CHA scaffolds had excellent 3D structure and maintained most raw material properties after printing. Compared to nonprinted scaffolds, printed scaffolds promoted bone marrow stromal cell proliferation and improved osteogenic outcome in vitro. In a rabbit femoral condyle defect model, the interconnecting pores within the printed scaffolds facilitated cell penetration and mineralization before the scaffolds degraded and enhanced repair, compared to nonprinted CHA scaffolds. Additionally, the optimal printing parameters for 3D CHA scaffolds were investigated; 600-μm-diameter rods were optimal in terms of moderate mechanical strength and better repair outcome in vivo. This low-temperature robocasting method could enable a variety of bioactive molecules to be incorporated into printed CHA materials and provides a method of bioprinting biomaterials without compromising their natural properties.
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Affiliation(s)
- Kai-Feng Lin
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University , Xi'an, 710032, P. R. China
| | - Shu He
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University , Xi'an, 710032, P. R. China
| | - Yue Song
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University , Xi'an, 710032, P. R. China
| | - Chun-Mei Wang
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University , Xi'an, 710032, P. R. China
| | - Yi Gao
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University , Xi'an, 710032, P. R. China
| | - Jun-Qin Li
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University , Xi'an, 710032, P. R. China
| | - Peng Tang
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University , Xi'an, 710032, P. R. China
| | - Zheng Wang
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University , Xi'an, 710032, P. R. China
| | - Long Bi
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University , Xi'an, 710032, P. R. China
| | - Guo-Xian Pei
- Department of Orthopaedics, Xijing Hospital, The Fourth Military Medical University , Xi'an, 710032, P. R. China
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25
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Lee J, Silberstein MN, Abdeen AA, Kim SY, Kilian KA. Mechanochemical functionalization of disulfide linked hydrogels. MATERIALS HORIZONS 2016; 3:447-451. [PMID: 28090330 PMCID: PMC5228622 DOI: 10.1039/c6mh00091f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Poly(ethylene glycol) hydrogels with disulfide linkages are functionalized through applied force. Compression or tension induces bond rupture at the relatively weak disulfide linkages, which will subsequently react through Michael-type addition with an acceptor molecule within the gel. We demonstrate the utility of this approach by patterning cell adhesion proteins through compression of a lithographically structured stamp, where cells predominately adhere to the compressed regions.
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Affiliation(s)
- Junmin Lee
- Department of Materials Science and Engineering and Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Meredith N. Silberstein
- Department of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Amr A. Abdeen
- Department of Materials Science and Engineering and Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Sang Yup Kim
- Department of Aerospace Engineering and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Kristopher A. Kilian
- Department of Materials Science and Engineering and Micro and Nanotechnology Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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26
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Rivero RE, Alustiza F, Rodríguez N, Bosch P, Miras MC, Rivarola CR, Barbero CA. Effect of functional groups on physicochemical and mechanical behavior of biocompatible macroporous hydrogels. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.10.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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27
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Kootala S, Tokunaga M, Hilborn J, Iwasaki Y. Anti-Resorptive Functions of Poly(ethylene sodium phosphate) on Human Osteoclasts. Macromol Biosci 2015. [PMID: 26222677 DOI: 10.1002/mabi.201500166] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Osteoporosis involves hyperactive osteoclasts. A large number of current drugs result in side effects affecting their efficacy in the clinic. Polyphosphoesters are unique polymeric biomaterials because of their biocompatibility, biodegradability, and bone affinity. We studied the viability and ability of human osteoclasts to resorb bone when dosed with poly(ethylene sodium phosphate) (PEP·Na). This did not trigger any change in osteoblast cell viability, however the polymer diminished human osteoclasts and their ability to resorb bone at concentrations as low as 10(-4) m · mL(-1). This is the first report to validate the possibility of using polyphosphoesters for selective inhibition of human osteoclast functions, indicating its potential to be used as an effective polymer prodrug for treatment of osteoporosis.
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Affiliation(s)
- Sujit Kootala
- Department of Chemistry, Polymer Chemistry, Uppsala University, Ångström Laboratory, S-75121 Uppsala, Sweden
| | - Masahiro Tokunaga
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka 564-8680, Japan
| | - Jöns Hilborn
- Department of Chemistry, Polymer Chemistry, Uppsala University, Ångström Laboratory, S-75121 Uppsala, Sweden.
| | - Yasuhiko Iwasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka 564-8680, Japan.
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28
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Tallawi M, Rosellini E, Barbani N, Cascone MG, Rai R, Saint-Pierre G, Boccaccini AR. Strategies for the chemical and biological functionalization of scaffolds for cardiac tissue engineering: a review. J R Soc Interface 2015; 12:20150254. [PMID: 26109634 PMCID: PMC4528590 DOI: 10.1098/rsif.2015.0254] [Citation(s) in RCA: 196] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 05/19/2015] [Indexed: 12/11/2022] Open
Abstract
The development of biomaterials for cardiac tissue engineering (CTE) is challenging, primarily owing to the requirement of achieving a surface with favourable characteristics that enhances cell attachment and maturation. The biomaterial surface plays a crucial role as it forms the interface between the scaffold (or cardiac patch) and the cells. In the field of CTE, synthetic polymers (polyglycerol sebacate, polyethylene glycol, polyglycolic acid, poly-l-lactide, polyvinyl alcohol, polycaprolactone, polyurethanes and poly(N-isopropylacrylamide)) have been proven to exhibit suitable biodegradable and mechanical properties. Despite the fact that they show the required biocompatible behaviour, most synthetic polymers exhibit poor cell attachment capability. These synthetic polymers are mostly hydrophobic and lack cell recognition sites, limiting their application. Therefore, biofunctionalization of these biomaterials to enhance cell attachment and cell material interaction is being widely investigated. There are numerous approaches for functionalizing a material, which can be classified as mechanical, physical, chemical and biological. In this review, recent studies reported in the literature to functionalize scaffolds in the context of CTE, are discussed. Surface, morphological, chemical and biological modifications are introduced and the results of novel promising strategies and techniques are discussed.
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Affiliation(s)
- Marwa Tallawi
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Elisabetta Rosellini
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56126 Pisa, Italy
| | - Niccoletta Barbani
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56126 Pisa, Italy
| | - Maria Grazia Cascone
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56126 Pisa, Italy
| | - Ranjana Rai
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Guillaume Saint-Pierre
- Inspiralia, Materials Laboratory, C/Faraday 7, Lab 3.02, Campus de Cantoblanco, Madrid 28049, Spain
| | - Aldo R. Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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29
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Zhang H, Chingin K, Zhu L, Chen H. Molecular Characterization of Ongoing Enzymatic Reactions in Raw Garlic Cloves Using Extractive Electrospray Ionization Mass Spectrometry. Anal Chem 2015; 87:2878-83. [DOI: 10.1021/ac504371z] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Hua Zhang
- Jiangxi Key Laboratory for
Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013 P.R. China
| | - Konstantin Chingin
- Jiangxi Key Laboratory for
Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013 P.R. China
| | - Liang Zhu
- Jiangxi Key Laboratory for
Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013 P.R. China
| | - Huanwen Chen
- Jiangxi Key Laboratory for
Mass Spectrometry and Instrumentation, East China Institute of Technology, Nanchang 330013 P.R. China
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30
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Iwasaki Y, Takahata Y, Fujii S. Self-setting particle-stabilized emulsion for hard-tissue engineering. Colloids Surf B Biointerfaces 2015; 126:394-400. [DOI: 10.1016/j.colsurfb.2014.12.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Revised: 11/26/2014] [Accepted: 12/02/2014] [Indexed: 11/26/2022]
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31
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Xu W, Wang Y, Li S, Ke Z, Yan Y, Li S, Xing Z, Wang C, Zeng F, Liu R, Deng F. Efficient gene and siRNA delivery with cationic polyphosphoramide with amino moieties in the main chain. RSC Adv 2015. [DOI: 10.1039/c5ra02721g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A novel cation polyphosphoramide with amino moieties in the main chain was synthesized, which can be used as efficient carriers for plasmid and siRNA.
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32
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Tairy O, Kampf N, Driver MJ, Armes SP, Klein J. Dense, Highly Hydrated Polymer Brushes via Modified Atom-Transfer-Radical-Polymerization: Structure, Surface Interactions, and Frictional Dissipation. Macromolecules 2014. [DOI: 10.1021/ma5019439] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Odeya Tairy
- Department
of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Nir Kampf
- Department
of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Michael J. Driver
- Vertellus
Biomaterials, Vertellus Specialties UK Ltd., Basingstoke, Hampshire RG25 2PH, U.K
| | - Steven P. Armes
- Department
of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
| | - Jacob Klein
- Department
of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel
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33
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Yom-Tov O, Neufeld L, Seliktar D, Bianco-Peled H. A novel design of injectable porous hydrogels with in situ pore formation. Acta Biomater 2014; 10:4236-46. [PMID: 25034645 DOI: 10.1016/j.actbio.2014.07.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 06/22/2014] [Accepted: 07/07/2014] [Indexed: 12/20/2022]
Abstract
The use of injectable porous hydrogels is of great interest in biomedical applications due to their excellent permeability and ease of integration into sites of surgical intervention. By implementing a method that enables the formation in situ of pores with controllable porosity and pore size, it is possible to synthesize bioactive hydrogels that are tailor-made for specific biomedical applications. An emulsion-templating technique was used to encapsulate oil droplets, which are subsequently leached out of the hydrogel to create the porous structure. Pore size and porosity were manipulated by changing oil-to-water ratios and the surfactant concentrations. Highly swellable porous hydrogels were obtained with control over mechanical strength and diffusive properties. The relationship between porosity, pore size, and the hydrogel's physical and mechanical characteristics was analyzed, and the potential of this material as a protein drug delivery system was demonstrated.
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34
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Wu Q, Zhou D, Kang R, Tang X, Yang Q, Song X, Zhang G. Synthesis and Self-Assembly of Thermoresponsive Amphiphilic Biodegradable Polypeptide/Poly(ethyl ethylene phosphate) Block Copolymers. Chem Asian J 2014; 9:2850-8. [DOI: 10.1002/asia.201402524] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Indexed: 12/13/2022]
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35
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Abstract
Disease and injury have resulted in a large, unmet need for functional tissue replacements. Polymeric scaffolds can be used to deliver cells and bioactive signals to address this need for regenerating damaged tissue. Phosphorous-containing polymers have been implemented to improve and accelerate the formation of native tissue both by mimicking the native role of phosphorous groups in the body and by attachment of other bioactive molecules. This manuscript reviews the synthesis, properties, and performance of phosphorous-containing polymers that can be useful in regenerative medicine applications.
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Affiliation(s)
- Brendan M. Watson
- Department of Bioengineering, Rice University 6500 Main Street, Houston, Texas 77030, USA
| | - F. Kurtis Kasper
- Department of Bioengineering, Rice University 6500 Main Street, Houston, Texas 77030, USA
| | - Antonios G. Mikos
- Department of Bioengineering, Rice University 6500 Main Street, Houston, Texas 77030, USA
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36
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Tamura A, Tokunaga M, Iwasaki Y, Yui N. Spontaneous Assembly into Pseudopolyrotaxane Between Cyclodextrins and Biodegradable Polyphosphoester Ionomers. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201300774] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Atsushi Tamura
- Department of Organic Biomaterials; Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University; 2-3-10 Kanda-Surugadai Chiyoda, Tokyo 101-0062 Japan
| | - Masahiro Tokunaga
- Department of Chemistry and Materials Engineering; Faculty of Chemistry, Materials and Bioengineering; Kansai University; 3-3-35 Yamate-cho Suita, Osaka 564-8680 Japan
| | - Yasuhiko Iwasaki
- Department of Chemistry and Materials Engineering; Faculty of Chemistry, Materials and Bioengineering; Kansai University; 3-3-35 Yamate-cho Suita, Osaka 564-8680 Japan
| | - Nobuhiko Yui
- Department of Organic Biomaterials; Institute of Biomaterials and Bioengineering; Tokyo Medical and Dental University; 2-3-10 Kanda-Surugadai Chiyoda, Tokyo 101-0062 Japan
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37
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McRae Page S, Parelkar S, Gerasimenko A, Shin DY, Peyton SR, Emrick T. Promoting cell adhesion on slippery phosphorylcholine hydrogel surfaces. J Mater Chem B 2013; 2:620-624. [PMID: 32261278 DOI: 10.1039/c3tb21493a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The growing interest in regenerative medicine has created a need for superior polymer matrices that suit multiple physical, mechanical, and biological requirements. While the phospholipid bilayer of a cell membrane is considered optimal for interacting with biologics, polymeric materials composed of 2-methacryloyloxyethyl phosphorylcholine (MPC) offer a cell membrane-like synthetic alternative. In this work, thiol-containing phosphorylcholine polymers were synthesized by radical copolymerization of a lipoic acid-functionalized methacrylate with MPC. The canonical cell adhesion oligopeptide (GRGDS) was incorporated into the polymers by copolymerization of a GRGDS-containing methacrylamide prepared by solid phase peptide synthesis. The relative amounts of phosphorylcholine, lipoic acid and oligopeptide were controlled by the monomer feed ratios, and the polymers were characterized by NMR spectroscopy and aqueous gel permeation chromatography (GPC). These multifunctional polymers formed hydrogels rapidly (<10 minutes) by Michael addition when poly(ethylene glycol)diacrylate (PEGDA) was added at pH 9 - an initiator-free gelation performed in a completely aqueous environment. Two cell lines, live mouse skeletal muscle myoblasts (C2C12) and human ovarian cancer (SKOV3) cells, were observed to specifically attach, spread and proliferate only on hydrogels containing the GRGDS peptide sequence, with a notable dependence on peptide concentration. The remarkable hydrophilicity and biocompatibility attributed to polyMPC combined with the facile gelation conditions of these polymers affords a platform of new bio-cooperative materials suitable for cell studies.
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Affiliation(s)
- Samantha McRae Page
- Polymer Science & Engineering Department, University of Massachusetts Amherst, Amherst, MA 01003, USA.
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Elsabahy M, Zhang S, Zhang F, Deng ZJ, Lim YH, Wang H, Parsamian P, Hammond PT, Wooley KL. Surface charges and shell crosslinks each play significant roles in mediating degradation, biofouling, cytotoxicity and immunotoxicity for polyphosphoester-based nanoparticles. Sci Rep 2013; 3:3313. [PMID: 24264796 PMCID: PMC3837308 DOI: 10.1038/srep03313] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 11/06/2013] [Indexed: 01/12/2023] Open
Abstract
The construction of nanostructures from biodegradable precursors and shell/core crosslinking have been pursued as strategies to solve the problems of toxicity and limited stability, respectively. Polyphosphoester (PPE)-based micelles and crosslinked nanoparticles with non-ionic, anionic, cationic, and zwitterionic surface characteristics for potential packaging and delivery of therapeutic and diagnostic agents, were constructed using a quick and efficient synthetic strategy, and importantly, demonstrated remarkable differences in terms of cytotoxicity, immunotoxicity, and biofouling properties, as a function of their surface characteristics and also with dependence on crosslinking throughout the shell layers. For instance, crosslinking of zwitterionic micelles significantly reduced the immunotoxicity, as evidenced from the absence of secretions of any of the 23 measured cytokines from RAW 264.7 mouse macrophages treated with the nanoparticles. The micelles and their crosslinked analogs demonstrated lower cytotoxicity than several commercially-available vehicles, and their degradation products were not cytotoxic to cells at the range of the tested concentrations. PPE-nanoparticles are expected to have broad implications in clinical nanomedicine as alternative vehicles to those involved in several of the currently available medications.
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Affiliation(s)
- Mahmoud Elsabahy
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut Clinical Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut, Egypt
- These authors contributed equally to this work
| | - Shiyi Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
- David H. Koch Institute for Integrative, Cancer Research, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
- These authors contributed equally to this work
| | - Fuwu Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Zhou J. Deng
- David H. Koch Institute for Integrative, Cancer Research, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Young H. Lim
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Hai Wang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Perouza Parsamian
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
| | - Paula T. Hammond
- David H. Koch Institute for Integrative, Cancer Research, Cambridge, MA 02139
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, United States
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Al-Ameen MA, Ghosh G. Sensitive quantification of vascular endothelial growth factor (VEGF) using porosity induced hydrogel microspheres. Biosens Bioelectron 2013; 49:105-10. [DOI: 10.1016/j.bios.2013.05.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 04/26/2013] [Accepted: 05/02/2013] [Indexed: 12/13/2022]
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40
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Zhang L, Jeong YI, Zheng S, Kang DH, Suh H, Kim I. Crosslinked Poly(ethylene glycol) Hydrogels with Degradable Phosphamide Linkers Used as a Drug Carrier in Cancer Therapy. Macromol Biosci 2013; 14:401-10. [DOI: 10.1002/mabi.201300327] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 09/16/2013] [Indexed: 01/01/2023]
Affiliation(s)
- Lidong Zhang
- BK21 PLUS Center for Advanced Chemical Technology, Department of Polymer Science and Engineering; Pusan National University Pusan; 609-735 Republic of Korea
| | - Young-Il Jeong
- National Research and Development Center for Hepatobiliary Cancer; Pusan National University Yangsan Hospital; Yangsan 626-870 Republic of Korea
| | - Sudan Zheng
- BK21 PLUS Center for Advanced Chemical Technology, Department of Polymer Science and Engineering; Pusan National University Pusan; 609-735 Republic of Korea
| | - Dae Hwan Kang
- National Research and Development Center for Hepatobiliary Cancer; Pusan National University Yangsan Hospital; Yangsan 626-870 Republic of Korea
| | - Hongsuk Suh
- Department of Chemistry and Chemistry Institute for Functional Materials; Pusan National University Pusan; 609-735 Republic of Korea
| | - Il Kim
- BK21 PLUS Center for Advanced Chemical Technology, Department of Polymer Science and Engineering; Pusan National University Pusan; 609-735 Republic of Korea
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Shen Y, Zhang S, Zhang F, Loftis A, Pavía-Sanders A, Zou J, Fan J, Taylor JSA, Wooley KL. Polyphosphoester-based cationic nanoparticles serendipitously release integral biologically-active components to serve as novel degradable inducible nitric oxide synthase inhibitors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5609-14. [PMID: 23999874 PMCID: PMC4404032 DOI: 10.1002/adma.201302842] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Indexed: 05/16/2023]
Abstract
A degradable polyphosphoester (PPE)-based cationic nanoparticle (cSCK), which is integrated constructed as a novel degradable drug device, demonstrates surprisingly efficient inhibition of inducible nitric oxide synthase (iNOS) transcription, and eventually inhibits nitric oxide (NO) over-production, without loading of any specific therapeutic drugs. This system may serve as a promising anti-inflammatory agent toward the treatment of acute lung injury.
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Affiliation(s)
- Yuefei Shen
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Shiyi Zhang
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA, Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Fuwu Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Alexander Loftis
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Adriana Pavía-Sanders
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Jiong Zou
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Jingwei Fan
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - John-Stephen A. Taylor
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
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Loh QL, Choong C. Three-dimensional scaffolds for tissue engineering applications: role of porosity and pore size. TISSUE ENGINEERING PART B-REVIEWS 2013; 19:485-502. [PMID: 23672709 DOI: 10.1089/ten.teb.2012.0437] [Citation(s) in RCA: 1430] [Impact Index Per Article: 130.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Tissue engineering applications commonly encompass the use of three-dimensional (3D) scaffolds to provide a suitable microenvironment for the incorporation of cells or growth factors to regenerate damaged tissues or organs. These scaffolds serve to mimic the actual in vivo microenvironment where cells interact and behave according to the mechanical cues obtained from the surrounding 3D environment. Hence, the material properties of the scaffolds are vital in determining cellular response and fate. These 3D scaffolds are generally highly porous with interconnected pore networks to facilitate nutrient and oxygen diffusion and waste removal. This review focuses on the various fabrication techniques (e.g., conventional and rapid prototyping methods) that have been employed to fabricate 3D scaffolds of different pore sizes and porosity. The different pore size and porosity measurement methods will also be discussed. Scaffolds with graded porosity have also been studied for their ability to better represent the actual in vivo situation where cells are exposed to layers of different tissues with varying properties. In addition, the ability of pore size and porosity of scaffolds to direct cellular responses and alter the mechanical properties of scaffolds will be reviewed, followed by a look at nature's own scaffold, the extracellular matrix. Overall, the limitations of current scaffold fabrication approaches for tissue engineering applications and some novel and promising alternatives will be highlighted.
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Affiliation(s)
- Qiu Li Loh
- Division of Materials Technology, School of Materials Science and Engineering, Nanyang Technological University , Singapore, Singapore
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Evaluation of physical and mechanical properties of porous poly (ethylene glycol)-co-(L-lactic acid) hydrogels during degradation. PLoS One 2013; 8:e60728. [PMID: 23593296 PMCID: PMC3621899 DOI: 10.1371/journal.pone.0060728] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 03/01/2013] [Indexed: 11/25/2022] Open
Abstract
Porous hydrogels of poly(ethylene glycol) (PEG) have been shown to facilitate vascularized tissue formation. However, PEG hydrogels exhibit limited degradation under physiological conditions which hinders their ultimate applicability for tissue engineering therapies. Introduction of poly(L-lactic acid) (PLLA) chains into the PEG backbone results in copolymers that exhibit degradation via hydrolysis that can be controlled, in part, by the copolymer conditions. In this study, porous, PEG-PLLA hydrogels were generated by solvent casting/particulate leaching and photopolymerization. The influence of polymer conditions on hydrogel architecture, degradation and mechanical properties was investigated. Autofluorescence exhibited by the hydrogels allowed for three-dimensional, non-destructive monitoring of hydrogel structure under fully swelled conditions. The initial pore size depended on particulate size but not polymer concentration, while degradation time was dependent on polymer concentration. Compressive modulus was a function of polymer concentration and decreased as the hydrogels degraded. Interestingly, pore size did not vary during degradation contrary to what has been observed in other polymer systems. These results provide a technique for generating porous, degradable PEG-PLLA hydrogels and insight into how the degradation, structure, and mechanical properties depend on synthesis conditions.
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44
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Surface engineering of cardiovascular stent with endothelial cell selectivity for in vivo re-endothelialisation. Biomaterials 2013; 34:2588-99. [DOI: 10.1016/j.biomaterials.2012.12.036] [Citation(s) in RCA: 157] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 12/29/2012] [Indexed: 01/26/2023]
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45
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Hao Y, He J, Zhang M, Tao Y, Liu J, Ni P. Synthesis and characterization of novel brush copolymers with biodegradable polyphosphoester side chains for gene delivery. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26617] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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46
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Steinbach T, Schröder R, Ritz S, Wurm FR. Microstructure analysis of biocompatible phosphoester copolymers. Polym Chem 2013. [DOI: 10.1039/c3py00563a] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Xiong MH, Li YJ, Bao Y, Yang XZ, Hu B, Wang J. Bacteria-responsive multifunctional nanogel for targeted antibiotic delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:6175-6180. [PMID: 22961974 DOI: 10.1002/adma.201202847] [Citation(s) in RCA: 202] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Revised: 08/15/2012] [Indexed: 06/01/2023]
Abstract
Bacteria-Responsive Multifunctional Nanogel: We developed a bacteria-responsive multifunctional nanogel for targeted antibiotic delivery, in which bacterial enzymes are utilized to trigger antibiotic release by degrading the polyphosphoester core. The mannosylated nanogel preferentially delivers drugs to macrophages and leads to drug accumulation at bacterial infection sites through macrophage transport. This nanogel provides macrophage targeting and lesion site-activatable drug release properties, which enhances bacterial growth inhibition.
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Affiliation(s)
- Meng-Hua Xiong
- CAS Key Laboratory of Soft Matter Chemistry and Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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48
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Zhang S, Zou J, Zhang F, Elsabahy M, Felder S, Zhu J, Pochan DJ, Wooley KL. Rapid and versatile construction of diverse and functional nanostructures derived from a polyphosphoester-based biomimetic block copolymer system. J Am Chem Soc 2012; 134:18467-74. [PMID: 23092249 PMCID: PMC3500909 DOI: 10.1021/ja309037m] [Citation(s) in RCA: 142] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A rapid and efficient approach for the preparation and modification of a versatile class of functional polymer nanoparticles has been developed, for which the entire engineering process from small molecules to polymers to nanoparticles bypasses typical slow and inefficient procedures and rather employs a series of steps that capture fully the "click" chemistry concepts that have greatly facilitated the preparation of complex polymer materials over the past decade. The construction of various nanoparticles with functional complexity from a versatile platform is a challenging aim to provide materials for fundamental studies and also optimization toward a diverse range of applications. In this paper, we demonstrate the rapid and facile preparation of a family of nanoparticles with different surface charges and functionalities based on a biodegradable polyphosphoester block copolymer system. From a retrosynthetic point of view, the nonionic, anionic, cationic, and zwitterionic micelles with hydrodynamic diameters between 13 and 21 nm and great size uniformity were quickly formed by suspending, independently, four amphiphilic diblock polyphosphoesters into water, which were functionalized from the same parental hydrophobic-functional AB diblock polyphosphoester by click-type thiol-yne reactions. The well-defined (PDI < 1.2) hydrophobic-functional AB diblock polyphosphoester was synthesized by an ultrafast (<5 min) organocatalyzed ring-opening polymerization in a two-step, one-pot manner with the quantitative conversions of two kinds of cyclic phospholane monomers. The whole programmable process starting from small molecules to nanoparticles could be completed within 6 h, as the most rapid approach for the anionic and nonionic nanoparticles, although the cationic and zwitterionic nanoparticles required ca. 2 days due to purification by dialysis. The micelles showed high biocompatibility, with even the cationic micelles exhibiting a 6-fold lower cytotoxicity toward RAW 264.7 mouse macrophage cells, as compared to the commercial transfection agent Lipofectamine.
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Affiliation(s)
- Shiyi Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Jiong Zou
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Fuwu Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Mahmoud Elsabahy
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Simcha Felder
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Jiahua Zhu
- Department of Materials Science and Engineering, University of Delaware
| | - Darrin J. Pochan
- Department of Materials Science and Engineering, University of Delaware
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
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Iwasaki Y, Katayama K, Yoshida M, Yamamoto M, Tabata Y. Comparative physicochemical properties and cytotoxicity of polyphosphoester ionomers with bisphosphonates. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:882-95. [DOI: 10.1080/09205063.2012.710823] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yasuhiko Iwasaki
- a Faculty of Chemistry, Materials and Bioengineering, Department of Chemistry and Materials Engineering , Kansai University , 3-3-35 Yamate-cho, Suita-shi, Osaka , 564-8680 , Japan
| | - Koichi Katayama
- a Faculty of Chemistry, Materials and Bioengineering, Department of Chemistry and Materials Engineering , Kansai University , 3-3-35 Yamate-cho, Suita-shi, Osaka , 564-8680 , Japan
| | - Munehiro Yoshida
- b Faculty of Chemistry, Materials and Bioengineering, Department of Life Science and Biotechnology , Kansai University , 3-3-35 Yamate-cho, Suita-shi, Osaka , 564-8680 , Japan
| | - Masaya Yamamoto
- c Department of Biomaterials, Institute for Frontier Medical Sciences , Kyoto University , 53 Kawara-cho Shogoin;Sakyo-ku, Kyoto , 606-8507 , Japan
| | - Yasuhiko Tabata
- c Department of Biomaterials, Institute for Frontier Medical Sciences , Kyoto University , 53 Kawara-cho Shogoin;Sakyo-ku, Kyoto , 606-8507 , Japan
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Ikeuchi R, Iwasaki Y. High mineral affinity of polyphosphoester ionomer-phospholipid vesicles. J Biomed Mater Res A 2012; 101:318-25. [PMID: 22829566 DOI: 10.1002/jbm.a.34321] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2012] [Revised: 05/07/2012] [Accepted: 06/20/2012] [Indexed: 12/19/2022]
Abstract
Bone-specific drug delivery is important for the treatment of osteoporosis and osseous metastases. However, there have been limitations in the design of drug carriers having bone affinity. We synthesized amphiphilic polyphosphoester ionomers (CH-PHE) and modified them to 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) vesicles. The ζ-potential of the vesicles was decreased by immobilization of CH-PHE; the amount was influenced by the structure and fraction of CH-PHE. The release rate of 5-carboxyfluorescein from the vesicles could be controlled by changing the fraction of DOPC and CH-PHE. In particular, the release of CF from DOPC vesicles containing 3% CH-PHE was most reduced. In addition, the enzymatic degradation of DOPC was reduced by immobilization with polyphosphoester ionomers; enzyme tolerance was increased with an increase in the molar fraction of polyphosphoester ionomers. Hemolytic activity of the phospholipid vesicles bearing CH-PHE was infrequently observed and was similar to that of the DOPC vesicles. Although a decrease in the viability of mouse osteoblastic cells (MC3T3-E1) in contact with the vesicles bearing CH-PHE was observed when the DOPC concentration of the vesicles bearing 20 mol % CH-PHE with highly ionized units was greater than 200 μM, the cytotoxicity was diminished by sodium salt formation of the CH-PHE. The affinity of the vesicles to calcium deposits generated by MC3T3-E1 cells was significantly improved by the immobilization polyphosphoesters.
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Affiliation(s)
- Ryota Ikeuchi
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Osaka, Japan
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