1
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Malecha JJ, Biller JR, Lama B, Gin DL. System for Living ROMP of a Paramagnetic FeCl 4--Based Ionic Liquid Monomer: Direct Synthesis of Magnetically Responsive Block Copolymers. ACS Macro Lett 2020; 9:140-145. [PMID: 35638664 DOI: 10.1021/acsmacrolett.9b00902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Direct, living ring-opening metathesis polymerization of a highly paramagnetic, norbornene-based imidazolium FeCl4- ionic liquid monomer was achieved using the Grubbs third-generation catalyst and starting the polymerization off with an uncharged, nonparamagnetic norbornene monomer in a sequential block copolymerization. Preparing the paramagnetic norbornene imidazolium FeCl4- monomer in high purity was found to be crucial for enabling living polymerization behavior and generating paramagnetic diblock copolymers with predictable block lengths and compositions.
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Affiliation(s)
- John J Malecha
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Joshua R Biller
- TDA Research, Inc., 4663 Table Mountain Drive, Golden, Colorado 80403, United States
| | - Bimala Lama
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Douglas L Gin
- Department of Chemistry, University of Colorado, Boulder, Colorado 80309, United States
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2
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Theodosiou M, Boukos N, Sakellis E, Zachariadis M, Efthimiadou EK. Gold nanoparticle decorated pH-sensitive polymeric nanocontainers as a potential theranostic agent. Colloids Surf B Biointerfaces 2019; 183:110420. [DOI: 10.1016/j.colsurfb.2019.110420] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 07/29/2019] [Accepted: 08/02/2019] [Indexed: 01/06/2023]
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3
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Koutsikou TS, Krokidis MG, Boukos N, Mitrikas G, Efthimiadou E. Synthesis, characterization and evaluation of multi sensitive nanocarriers by using the layer by layer method. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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4
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Toniolo G, Efthimiadou EK, Kordas G, Chatgilialoglu C. Development of multi-layered and multi-sensitive polymeric nanocontainers for cancer therapy: in vitro evaluation. Sci Rep 2018; 8:14704. [PMID: 30279462 PMCID: PMC6168533 DOI: 10.1038/s41598-018-32890-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 09/06/2018] [Indexed: 01/09/2023] Open
Abstract
Nanoscale drug delivery systems represent a promising strategy to treat cancer and to overcome the side effects of chemotherapy. In particular, hollow polymeric nanocontainers have attracted great interest because of their structural and morphological advantages and the variety of polymers that can be used, allowing the synthesis of stimuli-responsive materials capable of responding to the biochemical alterations of the tumour microenvironment. Here are reported the synthesis, characterization and in vitro evaluation of a three-stimuli-sensitive hollow nanocontainer consisting of three different shells, each one sensitive to a specific tumoral stimulus: in order pH, temperature and reducing environment. To test its properties, daunorubicin was used as a model drug, for which the nanocontainers exhibited excellent encapsulation ability. The in vitro drug release behaviour was studied under different conditions, where the system proved capable of responding to the selected tumoral stimuli by releasing a larger amount of drug than in physiological environment. The hollow system itself showed negligible cytotoxicity but the loaded nanocontainers and free drug showed identical cytotoxicity and intracellular localization. Therefore, this formulation can be considered as a promising platform to develop an injectable delivery system capable of improving systematic toxicity without affecting or reducing the activity of the encapsulated drug.
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Affiliation(s)
- Gianluca Toniolo
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Athens, Greece
| | - Eleni K Efthimiadou
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Athens, Greece.
- Inorganic Chemistry Laboratory, Chemistry Department, National and Kapodistrian University of Athens, Panepistimiopolis, Zografou, Greece.
| | - George Kordas
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Athens, Greece
| | - Chryssostomos Chatgilialoglu
- Institute of Nanoscience and Nanotechnology, NCSR Demokritos, Athens, Greece
- Institute for Organic Synthesis and Photoreactivity ISOF, Italian National Research Council, Bologna, Italy
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5
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Han L, Zhang XY, Wang YL, Li X, Yang XH, Huang M, Hu K, Li LH, Wei Y. Redox-responsive theranostic nanoplatforms based on inorganic nanomaterials. J Control Release 2017; 259:40-52. [DOI: 10.1016/j.jconrel.2017.03.018] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 02/23/2017] [Accepted: 03/08/2017] [Indexed: 12/19/2022]
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6
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Fukino T, Yamagishi H, Aida T. Redox-Responsive Molecular Systems and Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1603888. [PMID: 27990693 DOI: 10.1002/adma.201603888] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 09/15/2016] [Indexed: 06/06/2023]
Abstract
Redox reactions can alter the electronic, optical, and magnetic properties of molecules and their ensembles by adding or removing electrons. Here, the developments made over the past 10 years using molecular events are discussed, such as assembly/disassembly, transformation of ensembles, geometric changes, and molecular motions that are designed to be redox-responsive. Considerable progress has occurred in the application of these events to the realization of electronic memory, color displays, actuators, adhesives, and drug delivery. In these cases, systems behave in either a highly or a poorly correlated manner depending on the number of redox-active units involved, based on the method of integration. One of the great advantages of redox-responsive devices and materials is that they have the potential to be readily integrated into existing electronic technologies.
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Affiliation(s)
- Takahiro Fukino
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Hiroshi Yamagishi
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Takuzo Aida
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
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7
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Li F, Lu J, Kong X, Hyeon T, Ling D. Dynamic Nanoparticle Assemblies for Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605897. [PMID: 28224677 DOI: 10.1002/adma.201605897] [Citation(s) in RCA: 133] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 12/09/2016] [Indexed: 05/23/2023]
Abstract
Designed synthesis and assembly of nanoparticles assisted by their surface ligands can create "smart" materials with programmed responses to external stimuli for biomedical applications. These assemblies can be designed to respond either exogenously (for example, to magnetic field, temperature, ultrasound, light, or electric pulses) or endogenously (to pH, enzymatic activity, or redox gradients) and play an increasingly important role in a diverse range of biomedical applications, such as biosensors, drug delivery, molecular imaging, and novel theranostic systems. In this review, the recent advances and challenges in the development of stimuli-responsive nanoparticle assemblies are summarized; in particular, the application-driven design of surface ligands for stimuli-responsive nanoparticle assemblies that are capable of sensing small changes in the disease microenvironment, which induce the related changes in their physico-chemical properties, is described. Finally, possible future research directions and problems that have to be addressed are briefly discussed.
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Affiliation(s)
- Fangyuan Li
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, 310027, China
| | - Jingxiong Lu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xueqian Kong
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Korea
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 08826, Korea
| | - Daishun Ling
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Key Laboratory of Biomedical Engineering of the Ministry of Education, College of Biomedical Engineering & Instrument Science, Zhejiang University, Hangzhou, 310027, China
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8
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Zhao H. Retracted: Controlled synthesis of magnetic block copolymers for anti-microbial purpose. J Appl Polym Sci 2017. [DOI: 10.1002/app.44598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hongjian Zhao
- School of Materials Science & Engineering; Tianjin University; Tianjin 300072 China
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9
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Wang D, Jin Y, Zhu X, Yan D. Synthesis and applications of stimuli-responsive hyperbranched polymers. Prog Polym Sci 2017. [DOI: 10.1016/j.progpolymsci.2016.09.005] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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10
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Yang WJ, Zhao T, Zhou P, Chen S, Gao Y, Liang L, Wang X, Wang L. “Click” functionalization of dual stimuli-responsive polymer nanocapsules for drug delivery systems. Polym Chem 2017. [DOI: 10.1039/c7py00161d] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
“Clickable” and dual stimuli-responsive nanocapsules were developed for facile surface functionalizationviathiol–yne click chemistry and employed as drug nano-carriers.
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Affiliation(s)
- Wen Jing Yang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Tingting Zhao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Peng Zhou
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Simou Chen
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Yu Gao
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Lijun Liang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Xiaodong Wang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM)
- Jiangsu National Synergistic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts &Telecommunications
- Nanjing 210023
- China
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11
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Liu T, Hu J, Ma X, Kong B, Wang J, Zhang Z, Guo DS, Yang X. Hollow double-layered polymer nanoparticles with S-nitrosothiols for tumor targeted therapy. J Mater Chem B 2017; 5:7519-7528. [DOI: 10.1039/c7tb01715d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Tumor targeted hollow double-layered polymer nanoparticles (HDPNs) withS-nitrosothiols for nitric oxide (NO)-release as chemotherapy were described.
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Affiliation(s)
- Tuanwei Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education, Shandong Normal University
| | - Jingjing Hu
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education, Shandong Normal University
| | - Xiaoye Ma
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education, Shandong Normal University
| | - Bing Kong
- Department of Anesthesiology
- Shandong Maternal and Child Health Hospital
- Jinan 250014
- P. R. China
| | - Jilan Wang
- Department of Anesthesiology
- Shandong Provincal Hospital Affiliated to Shandong University
- Jinan 250014
- P. R. China
| | - Zhide Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education, Shandong Normal University
| | - Dian-Shun Guo
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education, Shandong Normal University
| | - Xinlin Yang
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
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12
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Ganivada MN, N VR, Kumar P, Bhattacharya S, Shunmugam R. Efficient approach to produce multi-functional copolymers for effective DNA binding. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3884] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mutyala Naidu Ganivada
- Polymer Research Centre, Department of Chemical Sciences; Indian Institute of Science Education Research Kolkata; Nadia West Bengal India
| | - Vijayakameswara Rao N
- Polymer Research Centre, Department of Chemical Sciences; Indian Institute of Science Education Research Kolkata; Nadia West Bengal India
| | - Pawan Kumar
- Polymer Research Centre, Department of Chemical Sciences; Indian Institute of Science Education Research Kolkata; Nadia West Bengal India
| | - Sourav Bhattacharya
- Polymer Research Centre, Department of Chemical Sciences; Indian Institute of Science Education Research Kolkata; Nadia West Bengal India
| | - Raja Shunmugam
- Polymer Research Centre, Department of Chemical Sciences; Indian Institute of Science Education Research Kolkata; Nadia West Bengal India
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13
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Potential use of SERS-assisted theranostic strategy based on Fe3O4/Au cluster/shell nanocomposites for bio-detection, MRI, and magnetic hyperthermia. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 64:199-207. [DOI: 10.1016/j.msec.2016.03.090] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 03/01/2016] [Accepted: 03/23/2016] [Indexed: 01/01/2023]
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14
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Cao ZQ, Wang GJ. Multi-Stimuli-Responsive Polymer Materials: Particles, Films, and Bulk Gels. CHEM REC 2016; 16:1398-435. [DOI: 10.1002/tcr.201500281] [Citation(s) in RCA: 120] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Indexed: 01/05/2023]
Affiliation(s)
- Zi-Quan Cao
- School of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083 P. R. China
| | - Guo-Jie Wang
- School of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083 P. R. China
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15
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Karimi M, Ghasemi A, Sahandi Zangabad P, Rahighi R, Moosavi Basri SM, Mirshekari H, Amiri M, Shafaei Pishabad Z, Aslani A, Bozorgomid M, Ghosh D, Beyzavi A, Vaseghi A, Aref AR, Haghani L, Bahrami S, Hamblin MR. Smart micro/nanoparticles in stimulus-responsive drug/gene delivery systems. Chem Soc Rev 2016; 45:1457-501. [PMID: 26776487 PMCID: PMC4775468 DOI: 10.1039/c5cs00798d] [Citation(s) in RCA: 882] [Impact Index Per Article: 110.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
New achievements in the realm of nanoscience and innovative techniques of nanomedicine have moved micro/nanoparticles (MNPs) to the point of becoming actually useful for practical applications in the near future. Various differences between the extracellular and intracellular environments of cancerous and normal cells and the particular characteristics of tumors such as physicochemical properties, neovasculature, elasticity, surface electrical charge, and pH have motivated the design and fabrication of inventive "smart" MNPs for stimulus-responsive controlled drug release. These novel MNPs can be tailored to be responsive to pH variations, redox potential, enzymatic activation, thermal gradients, magnetic fields, light, and ultrasound (US), or can even be responsive to dual or multi-combinations of different stimuli. This unparalleled capability has increased their importance as site-specific controlled drug delivery systems (DDSs) and has encouraged their rapid development in recent years. An in-depth understanding of the underlying mechanisms of these DDS approaches is expected to further contribute to this groundbreaking field of nanomedicine. Smart nanocarriers in the form of MNPs that can be triggered by internal or external stimulus are summarized and discussed in the present review, including pH-sensitive peptides and polymers, redox-responsive micelles and nanogels, thermo- or magnetic-responsive nanoparticles (NPs), mechanical- or electrical-responsive MNPs, light or ultrasound-sensitive particles, and multi-responsive MNPs including dual stimuli-sensitive nanosheets of graphene. This review highlights the recent advances of smart MNPs categorized according to their activation stimulus (physical, chemical, or biological) and looks forward to future pharmaceutical applications.
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Affiliation(s)
- Mahdi Karimi
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Ghasemi
- Department of Materials Science and Engineering, Sharif University of Technology, 11365-9466, Tehran, Iran
| | - Parham Sahandi Zangabad
- Department of Materials Science and Engineering, Sharif University of Technology, 11365-9466, Tehran, Iran
| | - Reza Rahighi
- Department of Research and Development, Sharif Ultrahigh Nanotechnologists (SUN) Company, P.O. Box: 13488-96394, Tehran, Iran and Nanotechnology Research Center, Research Institute of Petroleum Industry (RIPI), West Entrance Blvd., Olympic Village, P.O. Box: 14857-33111, Tehran, Iran
| | - S Masoud Moosavi Basri
- Bioenvironmental Research Center, Sharif University of Technology, Tehran, Iran and Civil & Environmental Engineering Department, Shahid Beheshti University, Tehran, Iran
| | - H Mirshekari
- Department of Biotechnology, University of Kerala, Trivandrum, India
| | - M Amiri
- Department of Materials Science and Engineering, Sharif University of Technology, 11365-9466, Tehran, Iran
| | - Z Shafaei Pishabad
- Department of Cell & Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - A Aslani
- Department of Materials Science and Engineering, Sharif University of Technology, 11365-9466, Tehran, Iran
| | - M Bozorgomid
- Department of Applied Chemistry, Central Branch of Islamic Azad University of Tehran, Tehran, Iran
| | - D Ghosh
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine (SATiM), Tehran University of Medical Sciences, Tehran, Iran
| | - A Beyzavi
- School of Mechanical Engineering, Boston University, Boston, MA, USA
| | - A Vaseghi
- Department of Biotechnology, Faculty of Advanced Science and Technologies of Isfahan, Isfahan, Iran
| | - A R Aref
- Department of Cancer Biology, Center for Cancer Systems Biology, Dana-Farber Cancer Institute, Department of Genetics, Harvard Medical School, Boston, MA 02215, USA
| | - L Haghani
- School of Medicine, International Campus of Tehran University of Medical Science, Tehran, Iran
| | - S Bahrami
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA. and Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA and Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
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16
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Peng E, Wang F, Xue JM. Nanostructured magnetic nanocomposites as MRI contrast agents. J Mater Chem B 2015; 3:2241-2276. [PMID: 32262055 DOI: 10.1039/c4tb02023e] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Magnetic resonance imaging (MRI) has become an integral part of modern clinical imaging due to its non-invasiveness and versatility in providing tissue and organ images with high spatial resolution. With the current MRI advancement, MRI imaging probes with suitable biocompatibility, good colloidal stability, enhanced relaxometric properties and advanced functionalities are highly demanded. As such, MRI contrast agents (CAs) have been an extensive research and development area. In the recent years, different inorganic-based nanoprobes comprising inorganic magnetic nanoparticles (MNPs) with an organic functional coating have been engineered to obtain a suitable contrast enhancement effect. For biomedical applications, the organic functional coating is critical to improve colloidal stability and biocompatibility. Simultaneously, it also provides a building block for generating a higher dimensional secondary structure. In this review, the combinatorial design approach by a self-assembling pre-formed hydrophobic inorganic MNPs core (from non-polar thermolysis synthesis) into various functional organic coatings (e.g. ligands, amphiphilic polymers and graphene oxide) to form water soluble nanocomposites will be discussed. The resultant magnetic ensembles were classified based on their dimensionality, namely, 0-D, 1-D, 2-D and 3-D structures. This classification provides further insight into their subsequent potential use as MRI CAs. Special attention will be dedicated towards the correlation between the spatial distribution and the associated MRI applications, which include (i) coating optimization-induced MR relaxivity enhancement, (ii) aggregation-induced MR relaxivity enhancement, (iii) off-resonance saturation imaging (ORS), (iv) magnetically-induced off-resonance imaging (ORI), (v) dual-modalities MR imaging and (vi) multifunctional nanoprobes.
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Affiliation(s)
- Erwin Peng
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, 9 Engineering Drive 1, 117576, Singapore.
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17
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Wu J, Zhou W, Cheng Q, Yang J. Polyvinylpyrrolidone-stabilized magnetic nickel nanochains for cancer hyperthermia and catalysis applications. RSC Adv 2015. [DOI: 10.1039/c4ra10545a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Novel polyvinylpyrrolidone-stabilized magnetic nickel nanochain (Ni-NC@PVP) have been reported by simple solvothermal method for potential cancer hyperthermia and catalytic applications.
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Affiliation(s)
- Jian Wu
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University
- Nanyang 639798
- Singapore
- State Key Laboratory of Coal Conversion
| | - Wei Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Qingmei Cheng
- Department of Chemistry
- Merkert Chemistry Center
- Boston College
- Chestnut Hill
- USA
| | - Jinglei Yang
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University
- Nanyang 639798
- Singapore
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18
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Yu X, Yuan X, Zhao Y, Ren L. Synthesis of paramagnetic polymers based on polyethyleneimine (PEI). RSC Adv 2015. [DOI: 10.1039/c5ra18175e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Paramagnetic polymers with high spin FeCl4 anion were prepared via the post-modification of PEI facilely. The resultant polymers showed a magnetic response under the attraction of a magnetic field.
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Affiliation(s)
- Xiaolong Yu
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- China
| | - Xiaoyan Yuan
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- China
| | - Yunhui Zhao
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- China
| | - Lixia Ren
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- China
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19
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Zhao Y, Lv LP, Jiang S, Landfester K, Crespy D. Advanced stimuli-responsive polymer nanocapsules with enhanced capabilities for payloads delivery. Polym Chem 2015. [DOI: 10.1039/c5py00323g] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent progress in the design, preparation, and application of stimuli-responsive polymer nanocapsules with enhanced capabilities for payloads delivery are reviewed.
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Affiliation(s)
- Yi Zhao
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Li-Ping Lv
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | - Shuai Jiang
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
| | | | - Daniel Crespy
- Max Planck Institute for Polymer Research
- 55128 Mainz
- Germany
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20
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van Rhee P, Rikken R, Abdelmohsen L, Maan J, Nolte R, van Hest J, Christianen P, Wilson D. Polymersome magneto-valves for reversible capture and release of nanoparticles. Nat Commun 2014; 5:5010. [PMID: 25248402 PMCID: PMC4176683 DOI: 10.1038/ncomms6010] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Accepted: 08/19/2014] [Indexed: 01/25/2023] Open
Abstract
Stomatocytes are polymersomes with an infolded bowl-shaped architecture. This internal cavity is connected to the outside environment via a small 'mouth' region. Stomatocytes are assembled from diamagnetic amphiphilic block-copolymers with a highly anisotropic magnetic susceptibility, which permits to magnetically align and deform the polymeric self-assemblies. Here we show the reversible opening and closing of the mouth region of stomatocytes in homogeneous magnetic fields. The control over the size of the opening yields magneto-responsive supramolecular valves that are able to reversibly capture and release cargo. Furthermore, the increase in the size of the opening is gradual and starts at fields below 10 T, which opens the possibility of using these structures for delivery and nanoreactor applications.
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Affiliation(s)
- P.G. van Rhee
- High Field Magnet Laboratory, Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - R.S.M. Rikken
- High Field Magnet Laboratory, Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - L.K.E.A. Abdelmohsen
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - J.C. Maan
- High Field Magnet Laboratory, Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - R.J.M. Nolte
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - J.C.M. van Hest
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
| | - P.C.M. Christianen
- High Field Magnet Laboratory, Institute for Molecules and Materials, Radboud University Nijmegen, Toernooiveld 7, 6525 ED Nijmegen, The Netherlands
| | - D.A. Wilson
- Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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21
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Li R, Feng F, Wang Y, Yang X, Yang X, Yang VC. Folic acid-conjugated pH/temperature/redox multi-stimuli responsive polymer microspheres for delivery of anti-cancer drug. J Colloid Interface Sci 2014; 429:34-44. [PMID: 24935187 DOI: 10.1016/j.jcis.2014.05.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 05/07/2014] [Accepted: 05/09/2014] [Indexed: 12/29/2022]
Abstract
The folic acid (FA)-conjugated pH/temperature/redox multi-stimuli responsive poly(methacrylic acid-co-N,N-bis(acryloyl)cystamine/poly(N-isopropylacrylamide-co-glycidyl methacrylate-co-N,N-bis(acryloyl)cystamine) microspheres were prepared by a two-stage distillation-precipitation polymerization with subsequent surface modification with FA. The microspheres were characterized by transmission electron microscopy, dynamical light scattering, Fourier-transform infrared spectra, UV-vis spectra and elemental analysis. The degradation of the functional microspheres could be triggered by a reductive reagent, such as glutathione, due to presence of BAC crosslinker. The drug-loaded microspheres exhibited a pH/temperature/redox multi-stimuli responsive drug release character for doxorubicin hydrochloride as a model anti-cancer drug, which was efficiently loaded into the microspheres with a high loading capacity of 208.0% and an encapsulation efficiency of 85.4%. In vitro drug delivery study indicated that the FA-conjugated microspheres could deliver Dox into MCF-7 cells more efficiently than the microspheres without functionalization of FA. Furthermore, WST-1 assay showed that the microspheres had no obvious toxicity to MCF-7 cells even at a high concentration of 2000 μg mL(-1). The resultant microsphere may be a promising vector for delivery of anti-cancer drugs as it exhibits a low cytotoxicity and degradability, precise molecular targeting property and multi-stimuli responsively controlled drug release.
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Affiliation(s)
- Rongrong Li
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Basic Medical Research Center, School of Pharmacy, Tianjin Medical University, Tianjin 300070, PR China
| | - Fuli Feng
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Basic Medical Research Center, School of Pharmacy, Tianjin Medical University, Tianjin 300070, PR China
| | - Yinsong Wang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Basic Medical Research Center, School of Pharmacy, Tianjin Medical University, Tianjin 300070, PR China
| | - Xiaoying Yang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Basic Medical Research Center, School of Pharmacy, Tianjin Medical University, Tianjin 300070, PR China.
| | - Xinlin Yang
- Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, PR China.
| | - Victor C Yang
- Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), Basic Medical Research Center, School of Pharmacy, Tianjin Medical University, Tianjin 300070, PR China
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22
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Ganivada MN, Rao N V, Dinda H, Kumar P, Das Sarma J, Shunmugam R. Biodegradable Magnetic Nanocarrier for Stimuli Responsive Drug Release. Macromolecules 2014. [DOI: 10.1021/ma500384m] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mutyala Naidu Ganivada
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
| | - Vijayakameswara Rao N
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
| | - Himadri Dinda
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
| | - Pawan Kumar
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
| | - Jayasri Das Sarma
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
| | - Raja Shunmugam
- Polymer Research Centre,
Department of Chemical Sciences and ‡Department of
Biological Sciences, Indian Institute of Science Education and Research Kolkata, India
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23
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Efthimiadou EK, Tapeinos C, Tziveleka LA, Boukos N, Kordas G. pH- and thermo-responsive microcontainers as potential drug delivery systems: Morphological characteristic, release and cytotoxicity studies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 37:271-7. [DOI: 10.1016/j.msec.2014.01.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Revised: 12/13/2013] [Accepted: 01/10/2014] [Indexed: 01/01/2023]
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24
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Rao N V, Ganivada MN, Sarkar S, Dinda H, Chatterjee K, Dalui T, Das Sarma J, Shunmugam R. Magnetic norbornene polymer as multiresponsive nanocarrier for site specific cancer therapy. Bioconjug Chem 2014; 25:276-85. [PMID: 24364417 DOI: 10.1021/bc400409n] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A site-specific, stimuli-responsive nanocarrier has been synthesized by conjugating folate, magnetic particles and doxorubicin to the backbone of norbornene polymer. Monomers, namely, cis-5-norbornene-6-(diethoxyphosphoryl)hexanote (mono 1), norbornene grafted poly(ethyleneglycol)-folate (mono 2), and norbornene derived doxorubicin (mono 3) are carefully designed to demonstrate the smart nanorcarrier capabilities. The synthesis and complete characterization of all three monomers are elaborately discussed. Their copolymerization is done by controlled/living ring-opening metathesis polymerization (ROMP) to get the triblock copolymer PHOS-FOL-DOX. NMR spectroscopy and gel permeation chromatography confirm the formation of the triblock copolymer, while FT-IR spectroscopy, thermogravimetric analysis, along with transmission electron microscope confirm the anchoring of iron particle (Fe3O4) to the PHOS-FOL-DOX. Drug release profile shows the importance of having the hydrazone linker that helps to release the drug exactly at the mild acidic conditions resembling the pH of the cancerous cells. The newly designed nanocarrier shows greater internalization (about 8 times) due to magnetic field. Also, increased intracellular DOX release is observed due to the folate receptor. From these results, it is clear that PHOS-FOL-DOX has the potential to act as a smart nanoreservoir with the magnetic field guidance, folate receptor targeting, and finally pH stimulation.
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Affiliation(s)
- Vijayakameswara Rao N
- Polymer Research Centre, Department of Chemical Sciences, ‡Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata , BCKV main campus, Mohanpur P.O., Mohanpur, West Bengal, India 741252
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25
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Feng F, Li R, Zhang Q, Wang Y, Yang X, Duan H, Yang X. Preparation of reduction-triggered degradable microcapsules for intracellular delivery of anti-cancer drug and gene. POLYMER 2014. [DOI: 10.1016/j.polymer.2013.11.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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26
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Miao K, Liu H, Zhao Y. Thermo, pH and reduction responsive coaggregates comprising AB2C2 star terpolymers for multi-triggered release of doxorubicin. Polym Chem 2014. [DOI: 10.1039/c3py01767b] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel disulfide-linked PEG(PCL)2(PNIPAM)2 and PEG(PCL)2(PAA)2 star terpolymers were synthesized and coassembled into mixed micelles or vesicles for multi-triggered drug release.
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Affiliation(s)
- Ke Miao
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Huanhuan Liu
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
| | - Youliang Zhao
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- Department of Polymer Science and Engineering
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
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27
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Efthimiadou EK, Tapeinos C, Chatzipavlidis A, Boukos N, Fragogeorgi E, Palamaris L, Loudos G, Kordas G. Dynamic in vivo imaging of dual-triggered microspheres for sustained release applications: synthesis, characterization and cytotoxicity study. Int J Pharm 2013; 461:54-63. [PMID: 24286923 DOI: 10.1016/j.ijpharm.2013.11.037] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Revised: 11/13/2013] [Accepted: 11/18/2013] [Indexed: 12/25/2022]
Abstract
This paper deals with the synthesis, characterization and property evaluation of drug-loaded magnetic microspheres with pH-responsive cross-linked polymer shell. The synthetic procedure consists of 3 steps, of which the first two comprise the synthesis of a poly methyl methacrylate (PMMA) template and the synthesis of a shell by using acrylic acid (AA) and methyl methacrylate (MMA) as monomers, and divinyl benzene (DVB) as cross-linker. The third step of the procedure refers to the formation of magnetic nanoparticles on the microsphere's surface. AA that attaches pH-sensitivity in the microspheres and magnetic nanoparticles in the inner and the outer surface of the microspheres, enhance the efficacy of this intelligent drug delivery system (DDS), which constitutes a promising approach toward cancer therapy. A number of experimental techniques were used to characterize the resulting microspheres. In order to investigate the in vitro controlled release behavior of the synthesized microspheres, we studied the Dox release percentage under different pH conditions and under external magnetic field. Hyperthermia caused by an alternating magnetic field (AFM) is used in order to study the doxorubicin (Dox) release behavior from microspheres with pH functionality. The in vivo fate of these hybrid-microspheres was tracked by labeling them with the γ-emitting radioisotope (99m)Tc after being intravenously injected in normal mice. According to our results, microsphere present a pH depending and a magnetic heating, release behavior. As expected, labeled microspheres were mainly found in the mononuclear phagocyte system (MPS). The highlights of the current research are: (i) to illustrate the advantages of controlled release by combining hyperthermia and pH-sensitivity and (ii) to provide noninvasive, in vivo information on the spatiotemporal biodistribution of these microsphere by dynamic γ-imaging.
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Affiliation(s)
- Eleni K Efthimiadou
- Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece.
| | - Christos Tapeinos
- Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece; Materials Science Department, School of Natural Sciences, University of Patras, 26 500 Patras, Greece.
| | - Alexandros Chatzipavlidis
- Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece.
| | - Nikos Boukos
- Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece.
| | - Eirini Fragogeorgi
- Department of Medical Instruments Technology, Technological Educational Institute, GR 122 10 Athens, Greece.
| | - Lazaros Palamaris
- Department of Medical Instruments Technology, Technological Educational Institute, GR 122 10 Athens, Greece.
| | - George Loudos
- Department of Medical Instruments Technology, Technological Educational Institute, GR 122 10 Athens, Greece.
| | - George Kordas
- Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR "Demokritos", 15310 Aghia Paraskevi Attikis, Greece.
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28
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Tziveleka LA, Bilalis P, Chatzipavlidis A, Boukos N, Kordas G. Development of Multiple Stimuli Responsive Magnetic Polymer Nanocontainers as Efficient Drug Delivery Systems. Macromol Biosci 2013; 14:131-41. [DOI: 10.1002/mabi.201300212] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 07/04/2013] [Indexed: 01/17/2023]
Affiliation(s)
- Leto-Aikaterini Tziveleka
- Institute for Advanced Materials, Physicochemical Processes; Nanotechnology & Microsystems, NCSR “Demokritos”; Aghia Paraskevi Attikis Athens GR-15310 Greece
| | - Panayiotis Bilalis
- Institute for Advanced Materials, Physicochemical Processes; Nanotechnology & Microsystems, NCSR “Demokritos”; Aghia Paraskevi Attikis Athens GR-15310 Greece
| | - Alexandros Chatzipavlidis
- Institute for Advanced Materials, Physicochemical Processes; Nanotechnology & Microsystems, NCSR “Demokritos”; Aghia Paraskevi Attikis Athens GR-15310 Greece
- School of Chemical Engineering; National Technical University of Athens; 9 HeroonPolytechniou St Zografos Athens GR-15780 Greece
| | - Nikos Boukos
- Institute for Advanced Materials, Physicochemical Processes; Nanotechnology & Microsystems, NCSR “Demokritos”; Aghia Paraskevi Attikis Athens GR-15310 Greece
| | - George Kordas
- Institute for Advanced Materials, Physicochemical Processes; Nanotechnology & Microsystems, NCSR “Demokritos”; Aghia Paraskevi Attikis Athens GR-15310 Greece
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29
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Chatzipavlidis A, Bilalis P, Tziveleka LA, Boukos N, Charitidis CA, Kordas G. Nanostructuring the surface of dual responsive hollow polymer microspheres for versatile utilization in nanomedicine-related applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:9562-9572. [PMID: 23862698 DOI: 10.1021/la401689c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The design and fabrication of hollow polymer microspheres responsive to various stimuli comprises a promising approach for the development of multifunctional and efficient systems for various nanomedicine-related applications. In this paper, we present the preparation of poly(methacrylic acid-co-N,N'-methylenebis(acrylamide)-co-poly(ethylene glycol) methyl ether methacrylate-co-N,N'-bis(acryloyl)cystamine) (PMAA(S-S)) hollow microspheres following a two-stage distillation precipitation polymerization procedure. Magnetic and silver nanocrystals were chemically grown on the surface of the hollow polymer microspheres, resulting in a composite system with interesting properties. We evaluated the performance of the composite hollow microspheres as magnetic hyperthermia mediators and their surface-enhanced Raman spectroscopy activity. Assessment of Daunorubicin-loaded PMAA(S-S) hollow microspheres performance as effective drug carriers was carried out through drug release experiments upon application of different pH and reducing conditions. pH and redox responsiveness as well as basic mechanisms of release profiles are discussed. Furthermore, in vitro cytotoxicity of empty and drug-loaded PMAA(S-S) hollow microspheres against MCF-7 cancer cells was investigated in order to evaluate their performance as drug carriers.
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Affiliation(s)
- A Chatzipavlidis
- Institute for Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, NCSR Demokritos, Aghia Paraskevi Attikis, Athens GR-15310, Greece
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30
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Dual and multi-stimuli responsive polymeric nanoparticles for programmed site-specific drug delivery. Biomaterials 2013; 34:3647-57. [DOI: 10.1016/j.biomaterials.2013.01.084] [Citation(s) in RCA: 999] [Impact Index Per Article: 90.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 01/28/2013] [Indexed: 01/19/2023]
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31
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Tapeinos C, Efthimiadou EK, Boukos N, Charitidis CA, Koklioti M, Kordas G. Microspheres as therapeutic delivery agents: synthesis and biological evaluation of pH responsiveness. J Mater Chem B 2012; 1:194-203. [PMID: 32260692 DOI: 10.1039/c2tb00013j] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A soft template method was used for the synthesis of pH-responsive microcontainers with an inner cavity. Poly(glycidyl methacrylate) (PGMA) microspheres of narrow size distribution were synthesized by soap-free radical emulsion polymerization and the coating of the microspheres was carried out by the same procedure. The procedure consists of two steps. In the first step the sacrificial template is synthesized and in the second step the shell is formed. Acrylic acid was used as a coating monomer, with the aim of introducing pH sensitivity in the synthesized microcontainers. A loading and release study of the anthracycline drug doxorubicin (DOX) was also carried out. The toxicity evaluation of the drug was carried out using the MTT assay, and the necrotic effect was studied using trypan blue.
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Affiliation(s)
- C Tapeinos
- NCSR "Demokritos", Sol-Gel Laboratory, Institute for Advanced Materials, Physicochemical Properties, Nanotechnology and Microsystems, 153 10 Aghia Paraskevi Attikis, Greece.
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