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Self-assembly in magnetic supramolecular hydrogels. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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2
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Han X, He J, Wang Z, Bai Z, Qu P, Song Z, Wang W. Fabrication of silver nanoparticles/gelatin hydrogel system for bone regeneration and fracture treatment. Drug Deliv 2021; 28:319-324. [PMID: 33517806 PMCID: PMC8725951 DOI: 10.1080/10717544.2020.1869865] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The present work aims to examine the effect of gelatin on the stabilization of silver nanoparticles (AgNPs) and their use in healing the bone fracture. AgNPs-loaded Gel hydrogels (AgNPs/Gel) were fabricated under sunlight using gelatin (Gel) as stabilizing agent. The characterization of the synthesized hydrogels was performed with the help of techniques such as UV-visible spectroscopy (UV-Vis) and high-resolution transmission electron microscopy (HR-TEM). Furthermore, the results of cell cytotoxicity confirmed that the AgNPs/Gel hydrogels are nonhazardous to osteoblasts. The outcome of cell fixation with AgNPs/Gel hydrogels after an incubation period of five days exposed the improved survival and spreading of osteoblasts cells on the prepared AgNPs/Gel hydrogels. Moreover, the AgNPs/Gel hydrogel nanostructures displayed their ability in modulating bone fracture healing, which suggests their potential use in nursing care.
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Affiliation(s)
- Xingwen Han
- Department of Orthopaedics, The First Hospital of Lanzhou University, Lanzhou, China
| | - Jingjing He
- Department of Liver Disease, Lanzhou University Second Hospital, Lanzhou, China
| | - Zhan Wang
- Department of Orthopaedics, Gansu Provincial Hospital, Lanzhou, China
| | - Zhongtian Bai
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province Lanzhou, The First Hospital of Lanzhou University, Lanzhou, China
| | - Peng Qu
- Department of Orthopaedics, The First Hospital of Lanzhou University, Lanzhou, China
| | - Zhengdong Song
- Department of Orthopaedics, The First Hospital of Lanzhou University, Lanzhou, China
| | - Wenji Wang
- Department of Orthopaedics, The First Hospital of Lanzhou University, Lanzhou, China
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Guo N, Zhang L, Wang J, Wang S, Zou Y, Wang X. Novel fabrication of morphology tailored nanostructures with Gelatin/Chitosan Co-polymeric bio-composited hydrogel system to accelerate bone fracture healing and hard tissue nursing care management. Process Biochem 2020. [DOI: 10.1016/j.procbio.2019.11.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Hoque J, Sangaj N, Varghese S. Stimuli-Responsive Supramolecular Hydrogels and Their Applications in Regenerative Medicine. Macromol Biosci 2019; 19:e1800259. [PMID: 30295012 PMCID: PMC6333493 DOI: 10.1002/mabi.201800259] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/10/2018] [Indexed: 12/16/2022]
Abstract
Supramolecular hydrogels are a class of self-assembled network structures formed via non-covalent interactions of the hydrogelators. These hydrogels capable of responding to external stimuli are considered to be smart materials due to their ability to undergo sol-gel and/or gel-sol transition upon subtle changes in their surroundings. Such stimuli-responsive hydrogels are intriguing biomaterials with applications in tissue engineering, delivery of cells and drugs, modulating tissue environment to promote innate tissue repair, and imaging for medical diagnostics among others. This review summarizes the recent developments in stimuli-responsive supramolecular hydrogels and their potential applications in regenerative medicine. Specifically, various structural aspects of supramolecular hydrogelators involved in self-assembly, the role of external stimuli in tuning/controlling their phase transitions, and how these functions could be harnessed to advance applications in regenerative medicine are focused on. Finally, the key challenges and future prospects for these versatile materials are briefly described.
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Affiliation(s)
- Jiaul Hoque
- Department of Orthopaedic Surgery, Duke University, Durham 27710, NC,
| | - Nivedita Sangaj
- Department of Orthopaedic Surgery, Duke University, Durham 27710, NC
| | - Shyni Varghese
- Department of Orthopaedic Surgery, Department of Biomedical Engineering, Department of Mechanical Engineering and Materials Science, Duke University, Durham 27710, NC
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Wu H, Song L, Chen L, Zhang W, Chen Y, Zang F, Chen H, Ma M, Gu N, Zhang Y. Injectable magnetic supramolecular hydrogel with magnetocaloric liquid-conformal property prevents post-operative recurrence in a breast cancer model. Acta Biomater 2018; 74:302-311. [PMID: 29729897 DOI: 10.1016/j.actbio.2018.04.052] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 04/25/2018] [Accepted: 04/26/2018] [Indexed: 10/17/2022]
Abstract
Locoregional recurrence of breast cancer after tumor resection represents several clinical challenges. Here, we demonstrate that co-delivery of chemotherapy and thermotherapeutic agents by a magnetic supramolecular hydrogel (MSH) following tumor resection prevents tumor recurrence in a breast cancer mouse model. The self-assembled MSH was designed through the partial inclusion complexation associated with the threading of α-CD on the copolymer moieties on the surface of the PEGylated iron oxide (Fe3O4) nanoparticles, which enables shear-thinning injection and controllable thermoreversible gel-sol transition. MSH was injected to the postoperative wound uniformly, which became mobile and perfect match with irregular cavity without blind angle due to the magnetocaloric gel-sol transition when exposed to alternating current magnetic field (ACMF). The magnetic nanoparticle-mediated induction heat during the gel-sol transition process caused the triggered release of dual-encapsulated chemotherapeutic drugs and provided an effect of thermally induced cell damage. The hierarchical structure of the MSH ensured that both hydrophobic and hydrophilic drugs can be loaded and consecutively delivered with different release curves. The hydrogel nanocomposite might provide a potential locally therapeutic approach for the precise treatment of locoregional recurrence of cancer. STATEMENT OF SIGNIFICANCE Tumor recurrence after resection represents several clinical challenges. In this study, we prepared shear-thinning injectable magnetic supramolecular hydrogel (MSH) and demonstrated their therapeutic applications in preventing the post-operative recurrence of breast cancer with facile synthesis and minimally invasive implantation in vivo. MSH was injected to the postoperative wound uniformly, which become mobile and perfect match with irregular cavity without blind angle through magnetocaloric gel-sol transition when exposed to ACMF. The magnetic nanoparticles mediated induction heat during the gel-sol transition process caused the triggered release of dual-encapsulated chemotherapeutic drugs as well as thermally induced cell damage. This study demonstrates that MSH with the controlled administration of combined thermo-chemotherapy exhibit great superiority in terms of preventing post-operation cancer relapse.
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Kesavan MP, Ayyanaar S, Vijayakumar V, Dhaveethu Raja J, Annaraj J, Sakthipandi K, Rajesh J. Magnetic iron oxide nanoparticles (MIONs) cross-linked natural polymer-based hybrid gel beads: Controlled nano anti-TB drug delivery application. J Biomed Mater Res A 2017; 106:1039-1050. [PMID: 29218783 DOI: 10.1002/jbm.a.36306] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 11/03/2017] [Accepted: 12/04/2017] [Indexed: 01/22/2023]
Abstract
The nanosized rifampicin (RIF) has been prepared to increase the solubility in aqueous solution, which leads to remarkable enhancement of its bioavailability and their convenient delivery system studied by newly produced nontoxic, biodegradable magnetic iron oxide nanoparticles (MIONs) cross-linked polyethylene glycol hybrid chitosan (mCS-PEG) gel beads. The functionalization of both nano RIF and mCS-PEG gel beads were studied using various spectroscopic and microscopic techniques. The size of prepared nano RIF was found to be 70.20 ± 3.50 nm. The mechanical stability and swelling ratio of the magnetic gel beads increased by the addition of PEG with a maximum swelling ratio of 38.67 ± 0.29 g/g. Interestingly, this magnetic gel bead has dual responsive assets in the nano drug delivery application (pH and the magnetic field). As we expected, magnetic gel beads show higher nano drug releasing efficacy at acidic medium (pH = 5.0) with maximum efficiency of 71.00 ± 0.87%. This efficacy may also be tuned by altering the external magnetic field and the weight percentage (wt%) of PEG. These results suggest that such a dual responsive magnetic gel beads can be used as a potential system in the nano drug delivery applications. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1039-1050, 2018.
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Affiliation(s)
- Mookkandi Palsamy Kesavan
- Mohamed Sathak Engineering College, Kilakarai, Chemistry Research Centre, Ramanathapuram, Tamilnadu, 623 806, India
| | - Srinivasan Ayyanaar
- Mohamed Sathak Engineering College, Kilakarai, Chemistry Research Centre, Ramanathapuram, Tamilnadu, 623 806, India
| | | | - Jeyaraj Dhaveethu Raja
- Mohamed Sathak Engineering College, Kilakarai, Chemistry Research Centre, Ramanathapuram, Tamilnadu, 623 806, India
| | - Jamespandi Annaraj
- Department of Materials Science, School of Chemistry, Madurai Kamaraj University, Madurai, Tamilnadu, 625 021, India
| | - Kathiresan Sakthipandi
- Department of Physics, Sethu Institute of Technology, Kariapatti, Virudhunagar (D.T.), Tamilnadu, 626 115, India
| | - Jegathalaprathaban Rajesh
- Mohamed Sathak Engineering College, Kilakarai, Chemistry Research Centre, Ramanathapuram, Tamilnadu, 623 806, India
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7
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Acrylated Composite Hydrogel Preparation and Adsorption Kinetics of Methylene Blue. Molecules 2017; 22:molecules22111824. [PMID: 29072617 PMCID: PMC6150218 DOI: 10.3390/molecules22111824] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 10/16/2017] [Accepted: 10/24/2017] [Indexed: 11/25/2022] Open
Abstract
By using cyclodextrin (α-CD) self-assembly into a hydrogel with the triblock copolymer Pluronic F127, nanomicrocrystalline cellulose was introduced into a gel system to form a composite CNC-β-CD/α-CD/Pluronic F127 hydrogel (CCH). CCH was modified further by grafting acrylic acid to form a novel acrylated composite hydrogel (ACH). The swelling degree of ACH was 156 g/g. Adsorption isotherms show that the adsorption process for methylene blue proximity fitted the Freundlich model. The adsorption kinetics showed that ACH followed a quasi-second-order kinetic model. Methylene blue desorption showed that ACH was a temperature- and pH-dependent gel. Repeated adsorption and desorption experiments were carried out three times, and the removal rate of methylene blue at 75 mg/L was still 70.1%.
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8
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Niu Y, Yuan X, Zhao Y, Zhang W, Ren L. Temperature and pH Dual-Responsive Supramolecular Polymer Hydrogels Hybridized with Functional Inorganic Nanoparticles. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201600540] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yanli Niu
- School of Materials Science and Engineering; Tianjin Key Laboratory of Composite and Functional Materials; Tianjin University; Tianjin 300072 China
| | - Xiaoyan Yuan
- School of Materials Science and Engineering; Tianjin Key Laboratory of Composite and Functional Materials; Tianjin University; Tianjin 300072 China
| | - Yunhui Zhao
- School of Materials Science and Engineering; Tianjin Key Laboratory of Composite and Functional Materials; Tianjin University; Tianjin 300072 China
| | - Wenyu Zhang
- Standardization Research Institute of China North Industries Group Corporation; Beijing 100089 China
| | - Lixia Ren
- School of Materials Science and Engineering; Tianjin Key Laboratory of Composite and Functional Materials; Tianjin University; Tianjin 300072 China
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9
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Karoyo AH, Wilson LD. Physicochemical Properties and the Gelation Process of Supramolecular Hydrogels: A Review. Gels 2017; 3:E1. [PMID: 30920498 PMCID: PMC6318668 DOI: 10.3390/gels3010001] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 12/01/2016] [Accepted: 12/02/2016] [Indexed: 12/29/2022] Open
Abstract
Supramolecular polysaccharide-based hydrogels have attracted considerable research interest recently due to their high structural functionality, low toxicity, and potential applications in foods, cosmetics, catalysis, drug delivery, tissue engineering and the environment. Modulation of the stability of hydrogels is of paramount importance, especially in the case of stimuli-responsive systems. This review will update the recent progress related to the rational design of supramolecular hydrogels with the objective of understanding the gelation process and improving their physical gelation properties for tailored applications. Emphasis will be given to supramolecular host⁻guest systems with reference to conventional gels in describing general aspects of gel formation. A brief account of the structural characterization of various supramolecular hydrogels is also provided in order to gain a better understanding of the design of such materials relevant to the nature of the intermolecular interactions, thermodynamic properties of the gelation process, and the critical concentration values of the precursors and the solvent components. This mini-review contributes to greater knowledge of the rational design of supramolecular hydrogels with tailored applications in diverse fields ranging from the environment to biomedicine.
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Affiliation(s)
- Abdalla H Karoyo
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada.
| | - Lee D Wilson
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada.
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10
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Lin X, Huang R, Ulbricht M. Novel magneto-responsive membrane for remote control switchable molecular sieving. J Mater Chem B 2016; 4:867-879. [DOI: 10.1039/c5tb02368h] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Magneto-responsive separation membrane: reversible change of molecule sieving through pore-confined polymeric hydrogel network by remote control of immobilized “nano heaters” with alternating magnetic field.
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Affiliation(s)
- Xi Lin
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45117 Essen
- Germany
- CENIDE – Center for Nanointegration Duisburg-Essen
| | - Rong Huang
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45117 Essen
- Germany
- CENIDE – Center for Nanointegration Duisburg-Essen
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II
- Universität Duisburg-Essen
- 45117 Essen
- Germany
- CENIDE – Center for Nanointegration Duisburg-Essen
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11
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Memic A, Alhadrami HA, Hussain MA, Aldhahri M, Al Nowaiser F, Al-Hazmi F, Oklu R, Khademhosseini A. Hydrogels 2.0: improved properties with nanomaterial composites for biomedical applications. ACTA ACUST UNITED AC 2015; 11:014104. [PMID: 26694229 DOI: 10.1088/1748-6041/11/1/014104] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The incorporation of nanomaterials in hydrogels (hydrated networks of crosslinked polymers) has emerged as a useful method for generating biomaterials with tailored functionality. With the available engineering approaches it is becoming much easier to fabricate nanocomposite hydrogels that display improved performance across an array of electrical, mechanical, and biological properties. In this review, we discuss the fundamental aspects of these materials as well as recent developments that have enabled their application. Specifically, we highlight synthesis and fabrication, and the choice of nanomaterials for multifunctionality as ways to overcome current material property limitations. In addition, we review the use of nanocomposite hydrogels within the framework of biomedical and pharmaceutical disciplines.
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Affiliation(s)
- Adnan Memic
- Center of Nanotechnology, King Abdulaziz University, Jeddah, Saudi Arabia. Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02138, USA
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12
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MWNT-hybrided supramolecular hydrogel for hydrophobic camptothecin delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 50:294-9. [DOI: 10.1016/j.msec.2015.02.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 01/29/2015] [Accepted: 02/11/2015] [Indexed: 01/09/2023]
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Ramimoghadam D, Bagheri S, Abd Hamid SB. Stable monodisperse nanomagnetic colloidal suspensions: An overview. Colloids Surf B Biointerfaces 2015; 133:388-411. [PMID: 26073507 DOI: 10.1016/j.colsurfb.2015.02.003] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Revised: 01/19/2015] [Accepted: 02/01/2015] [Indexed: 12/29/2022]
Abstract
Magnetic iron oxide nanoparticles (MNPs) have emerged as highly desirable nanomaterials in the context of many research works, due to their extensive industrial applications. However, they are prone to agglomerate on account of the anisotropic dipolar attraction, and therefore misled the particular properties related to single-domain magnetic nanostructures. The surface modification of MNPs is quite challenging for many applications, as it involves surfactant-coating for steric stability, or surface modifications that results in repulsive electrostatic force. Hereby, we focus on the dispersion of MNPs and colloidal stability.
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Affiliation(s)
- Donya Ramimoghadam
- Nanotechnology & Catalysis Research Centre (NANOCAT), IPS Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Samira Bagheri
- Nanotechnology & Catalysis Research Centre (NANOCAT), IPS Building, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Sharifah Bee Abd Hamid
- Nanotechnology & Catalysis Research Centre (NANOCAT), IPS Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
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14
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Xie X, Ma D, Zhang LM. Fabrication and properties of a supramolecular hybrid hydrogel doped with CdTe quantum dots. RSC Adv 2015. [DOI: 10.1039/c5ra09386d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A fluorescent supramolecular hydrogel was fabricated based on the host–guest self-assembly between the amphiphilic block copolymer on the CdTe quantum dot (QD) surface and the cyclic oligosaccharide host molecule, α-cyclodextrin (α-CD).
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Affiliation(s)
- Xi Xie
- PCFM Lab and GDHPPC Lab
- Institute of Polymer Science
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen (Zhongshan) University
- Guangzhou
| | - Dong Ma
- PCFM Lab and GDHPPC Lab
- Institute of Polymer Science
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen (Zhongshan) University
- Guangzhou
| | - Li-Ming Zhang
- PCFM Lab and GDHPPC Lab
- Institute of Polymer Science
- School of Chemistry and Chemical Engineering
- Sun Yat-Sen (Zhongshan) University
- Guangzhou
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15
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Huang J, Hao J, Anderson DP, Chang PR. Supramolecular Hydrogels Based on Cyclodextrin Poly(Pseudo)Rotaxane for New and Emerging Biomedical Applications. Adv Healthc Mater 2014. [DOI: 10.1002/9781118774205.ch11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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16
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Ma D, Zhang LM. Novel biosensing platform based on self-assembled supramolecular hydrogel. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:2632-8. [DOI: 10.1016/j.msec.2013.02.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 01/02/2013] [Accepted: 02/15/2013] [Indexed: 01/26/2023]
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17
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Zhao S, Zhou F, Liu R. Hybrid supramolecular hydrogels induced by Au nanoparticles protected with MPEG-b-PCL copolymers with α-cyclodextrin. Supramol Chem 2013. [DOI: 10.1080/10610278.2013.803107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Sanping Zhao
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan, 430073, P.R. China
| | - Feng Zhou
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan, 430073, P.R. China
| | - Ruina Liu
- Key Laboratory of Green Processing and Functional Textiles of New Textile Materials of Ministry of Education, Wuhan Textile University, Wuhan, 430073, P.R. China
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Campbell SB, Patenaude M, Hoare T. Injectable Superparamagnets: Highly Elastic and Degradable Poly(N-isopropylacrylamide)–Superparamagnetic Iron Oxide Nanoparticle (SPION) Composite Hydrogels. Biomacromolecules 2013; 14:644-53. [PMID: 23410094 DOI: 10.1021/bm301703x] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Scott B. Campbell
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario,
Canada L8S 4L7
| | - Mathew Patenaude
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario,
Canada L8S 4L7
| | - Todd Hoare
- Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, Ontario,
Canada L8S 4L7
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19
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Guo CG, Wang L, Li YK, Wang CQ. Suprarmolecular hydrogels based on low-molecular-weight poly(ethylene glycol) and α-cyclodextrin. J Appl Polym Sci 2013. [DOI: 10.1002/app.38902] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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20
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Release of Ftorafur from pH-sensitive hydrogels with hyperbranched poly(4-vinylbenzyl chloride) moieties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.02.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Zhou L, He B, Zhang F. Facile one-pot synthesis of iron oxide nanoparticles cross-linked magnetic poly(vinyl alcohol) gel beads for drug delivery. ACS APPLIED MATERIALS & INTERFACES 2012; 4:192-199. [PMID: 22191417 DOI: 10.1021/am201649b] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this paper, a facile one-pot strategy for scalable synthesis of robust magnetic poly(vinyl alcohol) (mPVA) gel beads is developed. Through dropwise addition of mixed aqueous solution of iron salts and PVA solution into alkaline (e.g., ammonia, NaOH, and KOH) solution, mPVA gel beads with uniform size and excellent superparamagnetic property can be fabricated based on the simultaneous formation of magnetic iron oxide nanoparticles (MIONs) and cross-link of PVA chains. Moreover, this approach can be extended to prepare dual- or multiresponsive gel beads through simply adding functional fillers into PVA solution (e.g., mPVA-PNIPAM gel beads that possess both magnetic and temperature responsibilities can be readily prepared by adding temperature responsive poly(N-isopropylacrylamide) (PNIPAM) into PVA solution). It is found that that the obtained mPVA gel beads exhibit high drug loading level (e.g., above 70%) after the treatment of freezing-thawing. Drug release experiments reveal that the drug release rate and amount of the mPVA gel beads can be tuned by operating the external magnetic field and adjusting the concentration of iron oxide nanoparticles and temperature (for mPVA-PNIPAM gel beads). The present work is of interest for opening up enormous opportunities to make full use of magnetic gel beads in drug delivery and other applications, because of their facile availability, cost-effective productivity, and tunable drug release performance.
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Affiliation(s)
- Li Zhou
- State Key Laboratory Breeding Base of Nonferrous Metals and Specific Materials Processing, and College of Material Science and Engineering, Guilin University of Technology, Guilin 541004, China.
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22
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Tunable supramolecular hydrogel for in situ encapsulation and sustained release of bioactive lysozyme. J Colloid Interface Sci 2011; 359:399-406. [PMID: 21536304 DOI: 10.1016/j.jcis.2011.04.032] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Revised: 04/10/2011] [Accepted: 04/11/2011] [Indexed: 11/23/2022]
Abstract
To develop new matrices for the entrapment and sustained release of bioactive lysozyme, a series of supramolecular hydrogels based on α-cyclodextrin (α-CD) and water-soluble poly(ε-caprolactone)-poly(ethylene glycol) block copolymer (PCL-b-PEG) were prepared in the presence of chicken egg lysozyme. Different from commonly used polymeric microspheres and chemically crosslinked hydrogels for lysozyme encapsulation, such hydrogel matrices could be formed under mild conditions without high temperature and the use of chemical emulsifiers or crosslinkers. Their gelation rate, mechanical strength and shear viscosity as well as the release behavior for the encapsulated lysozyme could be tuned easily by the change of α-CD or PCL-b-PEG amount. For the encapsulated lysozyme, its conformation and biological activity could be well maintained when compared to native lysozyme. For the resultant supramolecular hydrogels, they were also confirmed to have a good biocompatibility by MTT assay using mice skin fibroblast (L929).
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Varaprasad K, Mohan YM, Vimala K, Mohana Raju K. Synthesis and characterization of hydrogel-silver nanoparticle-curcumin composites for wound dressing and antibacterial application. J Appl Polym Sci 2011. [DOI: 10.1002/app.33508] [Citation(s) in RCA: 154] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Structure and properties of polysaccharide nanocrystal-doped supramolecular hydrogels based on Cyclodextrin inclusion. POLYMER 2010. [DOI: 10.1016/j.polymer.2010.07.025] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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25
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Simhadri JJ, Stretz HA, Oyanader M, Arce PE. Role of Nanocomposite Hydrogel Morphology in the Electrophoretic Separation of Biomolecules: A Review. Ind Eng Chem Res 2010. [DOI: 10.1021/ie1003762] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jyothirmai J. Simhadri
- Department of Chemical Engineering, Tennessee Technological University (TTU), Cookeville, Tennessee 38505, and Department of Chemical Engineering, Universidad Catolica del Norte, Antofagasta, Chile
| | - Holly A. Stretz
- Department of Chemical Engineering, Tennessee Technological University (TTU), Cookeville, Tennessee 38505, and Department of Chemical Engineering, Universidad Catolica del Norte, Antofagasta, Chile
| | - Mario Oyanader
- Department of Chemical Engineering, Tennessee Technological University (TTU), Cookeville, Tennessee 38505, and Department of Chemical Engineering, Universidad Catolica del Norte, Antofagasta, Chile
| | - Pedro E. Arce
- Department of Chemical Engineering, Tennessee Technological University (TTU), Cookeville, Tennessee 38505, and Department of Chemical Engineering, Universidad Catolica del Norte, Antofagasta, Chile
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26
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Ma D, Tu K, Zhang LM. Bioactive Supramolecular Hydrogel with Controlled Dual Drug Release Characteristics. Biomacromolecules 2010; 11:2204-12. [DOI: 10.1021/bm100676a] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dong Ma
- DSAPM Lab and PCFM Lab, Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Kai Tu
- DSAPM Lab and PCFM Lab, Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Li-Ming Zhang
- DSAPM Lab and PCFM Lab, Institute of Polymer Science, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
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27
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Hui Z, Zhang X, Yu J, Huang J, Liang Z, Wang D, Huang H, Xu P. Carbon nanotube-hybridized supramolecular hydrogel based on PEO-b-PPO-b-PEO/α-cyclodextrin as a potential biomaterial. J Appl Polym Sci 2010. [DOI: 10.1002/app.31729] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Teodor E, Litescu SC, Lazar V, Somoghi R. Hydrogel-magnetic nanoparticles with immobilized L-asparaginase for biomedical applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:1307-14. [PMID: 19160022 DOI: 10.1007/s10856-008-3684-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2008] [Accepted: 12/29/2008] [Indexed: 05/17/2023]
Abstract
The association of magnetic nanoparticles, which could be controlled by a magnetic field and have dimensions which facilitate their penetration in cells/tissues, with hydrogel type biopolymeric shells confer them compatibility and the capacity to retain and deliver bioactive substances. The main objective of this work is the development of a new system based on a biocompatible polymer with organic-inorganic structure capable of vectoring support for biologic active agents (L: -asparaginase, e.g.). Characterization of size and morphology of the hydrogel-magnetic nanoparticles with entrapped L: -asparaginase was made using Dynamic Light Scattering method, Transmission Electron Microscopy and Confocal Microscopy. The structure of magnetic nanoparticles coated with hydrogel was characterized by Fourier Transformed Infrared Spectroscopy. The cytotoxicity of nanoparticles was evaluated and also the interactions with microorganisms. We obtained hydrogel-magnetic nanoparticles with L: -asparaginase entrapped, with sizes below 30 nm in dried stage, capable to penetrate the cells and tissues.
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Affiliation(s)
- Eugenia Teodor
- National Institute for Biological Sciences, Centre of Bioanalysis, Bucharest, Romania.
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29
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Teodor E, Liţescu S, Petcu C, Mihalache M, Somoghi R. Nanostructured Biomaterials with Controlled Properties Synthesis and Characterization. NANOSCALE RESEARCH LETTERS 2009; 4:544-549. [PMID: 20596398 PMCID: PMC2894169 DOI: 10.1007/s11671-009-9278-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2008] [Accepted: 02/09/2009] [Indexed: 05/29/2023]
Abstract
Magnetic nanoparticles were obtained using an adjusted Massart method and were covered in a layer-by-layer technique with hydrogel-type biocompatible shells, from chitosan and hyaluronic acid. The synthesized nanocomposites were characterized using dynamic light scattering, transmission electron microscopy, and Fourier transformed infrared spectroscopy. Biocompatibility of magnetic nanostructures was determined by MTT (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) cell proliferation assay, swelling tests, and degradation tests. In addition, interaction of hydrogel-magnetic nanoparticles with microorganisms was studied. The possibility of precise nanoparticles size control, as long as the availability of bio-compatible covering, makes them suitable for biomedical applications.
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Affiliation(s)
- Eugenia Teodor
- National Institute for Biological Sciences-Centre of Bioanalysis, 296 Spl. Independentei, Bucharest 6, Romania
| | - SimonaCarmen Liţescu
- National Institute for Biological Sciences-Centre of Bioanalysis, 296 Spl. Independentei, Bucharest 6, Romania
| | - C Petcu
- National Institute for Chemistry & Petrochemistry, 202 Spl. Independentei, Bucharest 6, Romania
| | - Mihaela Mihalache
- National Institute for Biological Sciences-Centre of Bioanalysis, 296 Spl. Independentei, Bucharest 6, Romania
| | - Raluca Somoghi
- National Institute for Chemistry & Petrochemistry, 202 Spl. Independentei, Bucharest 6, Romania
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30
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Wu Y, Zhou Z, Fan Q, Chen L, Zhu M. Facile in-situ fabrication of novel organic nanoparticle hydrogels with excellent mechanical properties. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b909125d] [Citation(s) in RCA: 59] [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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