1
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Dou J, Yu S, Reddy O, Zhang Y. Novel ABA block copolymers: preparation, temperature sensitivity, and drug release. RSC Adv 2022; 13:129-139. [PMID: 36605663 PMCID: PMC9764341 DOI: 10.1039/d2ra05831f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 12/04/2022] [Indexed: 12/24/2022] Open
Abstract
A new PEGylated macroiniferter was prepared based on the polycondensation reaction of polyethylene oxide (PEO), methylene diphenyl diisocyanate (MDI), and 1,1,2,2-tetraphenyl-1,2-ethanediol (TPED). The macroiniferter consists of PEO end groups and readily reacts with acrylamides (such as N-isopropylacrylamide, NIPAM) and forms ABA block copolymers (PEO-PNIPAM-PEO). This approach of making amphiphilic ABA block copolymers is robust, versatile, and useful, particularly for the development of polymers for biomedical applications. The resulting amphiphilic PEO-PNIPAM-PEO block copolymers are also temperature sensitive, and their phase transition temperatures are close to human body temperature and therefore they have been applied as drug carriers for cancer treatment. Two PEO-PNIPAM-PEO polymers with different molecular weights were prepared and selected to make temperature-sensitive micelles. As a result of the biocompatibility of these micelles, cell viability tests proved that these micelles have low toxicity toward cancer cells. The resultant polymer micelles were then used as drug carriers to deliver the hydrophobic anticancer drug doxorubicin (DOX), and the results showed that they exhibit significantly higher cumulative drug release efficiency at higher temperatures. Moreover, after loading DOX into the micelles, cellular uptake experiments showed easy uptake and cell viability tests showed that DOX-loaded micelles possess a better therapeutic effect than free DOX at the same dose.
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Affiliation(s)
- Jie Dou
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University HeightsNewark 07102NJUSA
| | - Shupei Yu
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University HeightsNewark 07102NJUSA
| | - Ojasvita Reddy
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University HeightsNewark 07102NJUSA
| | - Yuanwei Zhang
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, University HeightsNewark 07102NJUSA
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2
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Dutta G, Manickam S, Sugumaran A. Stimuli-Responsive Hybrid Metal Nanocomposite - A Promising Technology for Effective Anticancer Therapy. Int J Pharm 2022; 624:121966. [PMID: 35764265 DOI: 10.1016/j.ijpharm.2022.121966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 11/19/2022]
Abstract
Cancer is one of the most challenging, life-threatening illnesses to cure, with over 10 million new cases diagnosed each year globally. Improved diagnostic cum treatment with common side-effects are warranting for successful therapy. Nanomaterials are recognized to improve early diagnosis, imaging, and treatment. Recently, multifunctional nanocomposites attracted considerable interest due to their low-cost production, and ideal thermal and chemical stability, and will be beneficial in future diagnostics and customized treatment capacity. Stimuli-Responsive Hybrid Metal Nanocomposites (SRHMNs) based nanocomposite materials pose the on/off delivery of bioactive compounds such as medications, genes, RNA, and DNA to specific tissue or organs and reduce toxicity. They simultaneously serve as sophisticated imaging and diagnostic tools when certain stimuli (e.g., temperature, pH, redox, ultrasound, or enzymes) activate the nanocomposite, resulting in the imaging-guided transport of the payload at defined sites. This review in detail addresses the recent advancements in the design and mechanism of internal breakdown processes of the functional moiety from stimuli-responsive systems in response to a range of stimuli coupled with metal nanoparticles. Also, it provides a thorough understanding of SRHMNs, enabling non-invasive interventional therapy by resolving several difficulties in cancer theranostics.
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Affiliation(s)
- Gouranga Dutta
- Department of Pharmaceutics, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur 603203, India
| | - Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Jalan Tungku Link Gadong, BE1410, Brunei Darussalam
| | - Abimanyu Sugumaran
- Department of Pharmaceutics, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur 603203, India.
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3
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Moradi S, Najjar R, Hamishehkar H, Lotfi A. Triple-responsive drug nanocarrier: Magnetic core-shell nanoparticles of Fe3O4@poly(N-isopropylacrylamide)-grafted-chitosan, synthesis and in vitro cytotoxicity evaluation against human lung and breast cancer cells. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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4
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Mokrus M, Menzel H. Thermoresponsive Glycopolypeptide Containing Block Copolymers, Particle Formation, and Lectin Interaction. Macromol Biosci 2022; 22:e2100518. [PMID: 35358360 DOI: 10.1002/mabi.202100518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/04/2022] [Indexed: 01/01/2023]
Abstract
Amphiphilic block copolymers with a thermoresponsive poly(N-isopropylacrylamide) block and a glycopeptide block are synthesized and particle formation as well as interaction of the glyco-corona with lectins is investigated. The synthetic route comprises the preparation of block copolymers by N-carboxyanhydride polymerization and subsequent deprotection to obtain pH- and thermoresponsive poly(l-glutamic acid)-b-poly(N-isopropylacrylamide) (pGA-b-pNIPAM), which is then further modified with different amino sugars by a versatile coupling method with 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholin-4-ium chloride (DMT-MM). The glycosylated pGA-b-pNIPAM block copolymers are investigated with regard to cloud point temperatures (Tcp ), particle size, and stability. The morphology of the particles is visualized using cryo-SEM. Zeta potential measurements are indicating that the saccharide moieties are located on the surface of the particles. This assumption is further substantiated by quantitative lectin interaction assays with nonaggregated and aggregated glycosylated pGA-b-pNIPAM. The interaction of the model lectin ConA with the block copolymers is independent of the degree of substitution in the nonaggregated state at room temperature. However, at 37 °C, when particles of pGA-b-pNIPAM are present, the interaction becomes stronger with increasing degree of substitution. This interaction with lectins can be used for targeting saccharide-modified particles in drug delivery.
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Affiliation(s)
- Mandy Mokrus
- Institute for Technical Chemistry, Technische Universität Braunschweig, Hagenring 30, Braunschweig, 38106, Germany
| | - Henning Menzel
- Institute for Technical Chemistry, Technische Universität Braunschweig, Hagenring 30, Braunschweig, 38106, Germany
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5
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Li C, Qiu Y, Li R, Li M, Qin Z, Yin X. Preparation of poly (N-isopropylacrylamide)/polycaprolactone electrospun nanofibres as thermoresponsive drug delivery systems in wound dressing. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.2006654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Changgui Li
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan, China
| | - Yuheng Qiu
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan, China
| | - Rongguo Li
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan, China
| | - Mengting Li
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan, China
| | - Ziyu Qin
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan, China
| | - Xueqiong Yin
- Hainan Provincial Fine Chemical Engineering Research Center, Hainan University, Haikou, Hainan, China
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6
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Gonzaga RV, do Nascimento LA, Santos SS, Machado Sanches BA, Giarolla J, Ferreira EI. Perspectives About Self-Immolative Drug Delivery Systems. J Pharm Sci 2020; 109:3262-3281. [DOI: 10.1016/j.xphs.2020.08.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 07/27/2020] [Accepted: 08/17/2020] [Indexed: 12/14/2022]
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7
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Alami-Milani M, Zakeri-Milani P, Valizadeh H, Fathi M, Salatin S, Salehi R, Jelvehgari M. PLA-PCL-PEG-PCL-PLA based micelles for improving the ocular permeability of dexamethasone: development, characterization, and in vitro evaluation. Pharm Dev Technol 2020; 25:704-719. [PMID: 32098567 DOI: 10.1080/10837450.2020.1733606] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The aim of the present research was to investigate the feasibility of developing polylactide-polycaprolactone-polyethylene glycol-polycaprolactone-polylactide (PLA-PCL-PEG-PCL-PLA) based micelles to improve ocular permeability of dexamethasone (DEX). PLA-PCL-PEG-PCL-PLA copolymers were synthesized by a ring-opening polymerization method. DEX was loaded into the developed copolymers. The DEX-loaded micelles were characterized using transmission electron microscopy (TEM) and dynamic light scattering (DLS) methods. Cytotoxicity of the micelles obtained was investigated on L929 cell line. Cellular uptake was followed by fluorescence microscopy and flow cytometry analyses. The release behavior of DEX from the micelles as well as the drug release kinetics was studied. Corneal permeability was also evaluated using an ex vivo bovine model. The pentablock copolymers were successfully synthesized. The TEM results verified the formation of spherical micelles, the sizes of which was approximately 65 nm. The micelles exhibited suitable compatibility on L929 cells. The release profile showed an initial burst release phase followed by a sustained release phase, the kinetic of which was close to the Weibull's distribution model. The micelles showed higher corneal permeability in comparison to a marketed DEX eye drop. Taken together, the results indicated that the PLA-PCL-PEG-PCL-PLA micelles could be appropriate candidates for the ocular delivery of DEX, and probably other hydrophobic drugs.
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Affiliation(s)
- Mitra Alami-Milani
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parvin Zakeri-Milani
- Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hadi Valizadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Marzieh Fathi
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sara Salatin
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Roya Salehi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,School of Advanced Medical Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mitra Jelvehgari
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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9
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Gupta MK, Balikov DA, Lee Y, Ko E, Yu C, Chun YW, Sawyer DB, Kim WS, Sung HJ. Gradient release of cardiac morphogens by photo-responsive polymer micelles for gradient-mediated variation of embryoid body differentiation. J Mater Chem B 2017; 5:5206-5217. [PMID: 32264105 DOI: 10.1039/c7tb00880e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Retinoic acid (RA) is a well-known morphogen in human development. However, how an RA gradient distribution influences cardiac development remains obscure due to the lack of appropriate experimental apparatus. To address this issue, a polymeric micelle system with covalently attached RA was engineered to deliver gradient quantities of RA upon photo-irradiation. A photo-degradable polymeric nanoparticle (NP) composed of an amphiphilic methoxy(polyethylene glycol)-b-poly(ε-caprolactone)-co-poly(azido-ε-caprolactone-g-ortho nitrobenzyl retinoic ester) copolymer was synthesized, and hanging RA was covalently attached through a photo-sensitive o-nitrobenzyl (ONB) linker. The ONB linker was efficiently cleaved when exposed to a light (365 nm)-gradient, and the consequent gradient release of RA from the micelles was demonstrated. The efficacy of the photo-gradient-mediated RA release was validated across different concentrations of polymer micelles over varied irradiation periods. It was confirmed that polymer micelles demonstrated minimal cytotoxicity when exposed to mouse embryoid bodies (EBs). Finally, when the photo-gradient release of polymer micelles was applied, GFP-cardiac troponin T reporter mouse EBs demonstrated a concurrent gradient-like pattern of cardiac differentiation, verifying the utility of our novel photo-gradient approach to study morphogen gradients not only for cardiac development but also for other potential biological microenvironments subject to morphogen presentation with highly defined spatial and temporal geometries.
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Affiliation(s)
- Mukesh K Gupta
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA.
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10
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Lin YK, Yu YC, Wang SW, Lee RS. Temperature, ultrasound and redox triple-responsive poly(N-isopropylacrylamide) block copolymer: synthesis, characterization and controlled release. RSC Adv 2017. [DOI: 10.1039/c7ra06825e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Triple stimuli-responsive polymers PNiPAAm-S-S-PXCL containing a disulfide (–S–S–) bond as a junction point between hydrophilic and hydrophobic chains were synthesized and characterized.
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Affiliation(s)
- Yin-Ku Lin
- Department of Traditional Chinese Medicine
- Chang Gung Memorial Hospital at Keelung
- Keelung
- Taiwan
| | - Yung-Ching Yu
- Division of Natural Science
- Center of General Education
- Chang Gung University
- Tao-Yuan 33302
- Taiwan
| | - Shiu-Wei Wang
- Division of Natural Science
- Center of General Education
- Chang Gung University
- Tao-Yuan 33302
- Taiwan
| | - Ren-Shen Lee
- Division of Natural Science
- Center of General Education
- Chang Gung University
- Tao-Yuan 33302
- Taiwan
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11
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Manouras T, Vamvakaki M. Field responsive materials: photo-, electro-, magnetic- and ultrasound-sensitive polymers. Polym Chem 2017. [DOI: 10.1039/c6py01455k] [Citation(s) in RCA: 211] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Recent advances in field-responsive polymers, which have emerged as highly promising materials for numerous applications, are highlighted.
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Affiliation(s)
- Theodore Manouras
- Institute of Electronic Structure and Laser
- Foundation for Research and Technology-Hellas
- Heraklion
- Greece
| | - Maria Vamvakaki
- Institute of Electronic Structure and Laser
- Foundation for Research and Technology-Hellas
- Heraklion
- Greece
- University of Crete
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12
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Fang JY, Lin YK, Wang SW, Yu YC, Lee RS. Acid and light dual- stimuli-cleavable polymeric micelles. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1166-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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13
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Karimi M, Zangabad PS, Ghasemi A, Amiri M, Bahrami M, Malekzad H, Asl HG, Mahdieh Z, Bozorgomid M, Ghasemi A, Boyuk MRRT, Hamblin MR. Temperature-Responsive Smart Nanocarriers for Delivery Of Therapeutic Agents: Applications and Recent Advances. ACS APPLIED MATERIALS & INTERFACES 2016; 8:21107-33. [PMID: 27349465 PMCID: PMC5003094 DOI: 10.1021/acsami.6b00371] [Citation(s) in RCA: 219] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Smart drug delivery systems (DDSs) have attracted the attention of many scientists, as carriers that can be stimulated by changes in environmental parameters such as temperature, pH, light, electromagnetic fields, mechanical forces, etc. These smart nanocarriers can release their cargo on demand when their target is reached and the stimulus is applied. Using the techniques of nanotechnology, these nanocarriers can be tailored to be target-specific, and exhibit delayed or controlled release of drugs. Temperature-responsive nanocarriers are one of most important groups of smart nanoparticles (NPs) that have been investigated during the past decades. Temperature can either act as an external stimulus when heat is applied from the outside, or can be internal when pathological lesions have a naturally elevated termperature. A low critical solution temperature (LCST) is a special feature of some polymeric materials, and most of the temperature-responsive nanocarriers have been designed based on this feature. In this review, we attempt to summarize recent efforts to prepare innovative temperature-responsive nanocarriers and discuss their novel 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
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
| | - Parham Sahandi Zangabad
- Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Science (TUOMS), Tabriz, Iran
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Ghasemi
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Mohammad Amiri
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Mohsen Bahrami
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Hedieh Malekzad
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
- Department of Chemistry, Kharazmi University of Tehran, Tehran, Iran
| | - Hadi Ghahramanzadeh Asl
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
| | - Zahra Mahdieh
- Department of Biomedical and Pharmaceutical Sciences, Material Science and Engineering, University of Montana, Missoula, Montana 59812, United States
| | - Mahnaz Bozorgomid
- Department of Applied Chemistry, Central Branch of Islamic Azad University of Tehran, Tehran, Iran
| | - Amir Ghasemi
- Department of Materials Science and Engineering, Sharif University of Technology, Azadi Avenue, 14588 Tehran, Iran
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
| | | | - Michael R. Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, United States
- Department of Dermatology, Harvard Medical School, Boston, Massachusetts 02115, United States
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, Massachusetts 02139, United States
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14
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Du X, Jiang Y, Zhuo R, Jiang X. Thermosensitive and photocleavable polyaspartamide derivatives for drug delivery. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28171] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xiao Du
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Yibo Jiang
- Agrotechnology and Food Sciences; Wageningen University; PO Box 17 6700 AA Wageningen The Netherlands
| | - Renxi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
| | - Xulin Jiang
- Key Laboratory of Biomedical Polymers of Ministry of Education and Department of Chemistry; Wuhan University; Wuhan 430072 People's Republic of China
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15
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Lai YS, Kao CL, Chen YP, Fang CC, Hu CC, Chu CC. Photodegradable self-assembling PAMAM dendrons for gene delivery involving dendriplex formation and phototriggered circular DNA release. NEW J CHEM 2016. [DOI: 10.1039/c5nj03173g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Photoresponsive amphiphilic dendron bearing a photolabile o-nitrobenzyl group possesses self-assembly, DNA binding and photo-induced release.
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Affiliation(s)
- Yu-Sen Lai
- Department of Medical Applied Chemistry
- Chung Shan Medical University
- Taichung 40201
- Taiwan
| | - Chai-Lin Kao
- Department of Medical and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Taiwan
| | - Ya-Pei Chen
- Department of Medical Applied Chemistry
- Chung Shan Medical University
- Taichung 40201
- Taiwan
| | - Chia-Chia Fang
- Department of Medical Applied Chemistry
- Chung Shan Medical University
- Taichung 40201
- Taiwan
| | - Chao-Chin Hu
- Department of Medical Applied Chemistry
- Chung Shan Medical University
- Taichung 40201
- Taiwan
| | - Chih-Chien Chu
- Department of Medical Applied Chemistry
- Chung Shan Medical University
- Taichung 40201
- Taiwan
- Department of Medical Education
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16
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Fang JY, Lin YK, Wang SW, Li YC, Lee RS. Synthesis and characterization of dual-stimuli-responsive micelles based on poly(N-isopropylacrylamide) and polycarbonate with photocleavable moieties. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.08.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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17
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18
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Fang JY, Wang SW, Li YC, Lee RS. Bio-recognizable and photo-cleavable block copolymers based on sugar and poly(4-substituted-ε-caprolactone) bearing a photo-cleavable junction. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0803-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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19
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Lee RS, Lin CH, Aljuffali IA, Hu KY, Fang JY. Passive targeting of thermosensitive diblock copolymer micelles to the lungs: synthesis and characterization of poly(N-isopropylacrylamide)-block-poly(ε-caprolactone). J Nanobiotechnology 2015; 13:42. [PMID: 26084491 PMCID: PMC4472254 DOI: 10.1186/s12951-015-0103-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 06/08/2015] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Amphiphilic poly(N-isopropylacrylamide)-block-poly(ε-caprolactone) (PNiPAAm-b-PCL) copolymers were synthesized by ring-opening polymerization to form thermosensitive micelles as nanocarriers for bioimaging and carboplatin delivery. RESULTS The critical micelle concentration increased from 1.8 to 3.5 mg/l following the decrease of the PNiPAAm chain length. The copolymers revealed a lower critical solution temperature (LCST) between 33 and 40°C. The copolymers self-assembled to form spherical particles of 146-199 nm in diameter. Carboplatin in micelles exhibited a slower release at 37°C relative to that at 25°C due to the gel layer formation on the micellar shell above the LCST. The micelles containing dye or carboplatin were intravenously injected into the rats for in vivo bioimaging and drug biodistribution. The bioimaging profiles showed a significant accumulation of micelles in the lungs. The micelles could minimize the reticuloendothelial system (RES) recognition of the dye. In vivo biodistribution demonstrated an improved pulmonary accumulation of carboplatin from 2.5 to 3.4 μg/mg by the micelles as compared to the control solution. Carboplatin accumulation in the heart and kidneys was reduced after encapsulation by the micelles. CONCLUSION This study supports the potential of PNiPAAm-b-PCL micelles to passively target the lungs and attenuate RES uptake and possible side effects.
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Affiliation(s)
- Ren-Shen Lee
- The Center of General Education, Chang Gung University, Kweishan, Taoyuan, Taiwan.
| | - Chih-Hung Lin
- Center for General Education, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan.
| | - Ibrahim A Aljuffali
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
| | - Kai-Yin Hu
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, 259 Wen-Hwa 1st Road, Kweishan, Taoyuan, 333, Taiwan.
| | - Jia-You Fang
- Pharmaceutics Laboratory, Graduate Institute of Natural Products, Chang Gung University, 259 Wen-Hwa 1st Road, Kweishan, Taoyuan, 333, Taiwan. .,Immunology Consortium, Chang Gung Memorial Hospital, Kweishan, Taoyuan, Taiwan. .,Research Center for Industry of Human Ecology, Chang Gung University of Science and Technology, Kweishan, Taoyuan, Taiwan.
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20
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Plazas-Tuttle J, Rowles LS, Chen H, Bisesi JH, Sabo-Attwood T, Saleh NB. Dynamism of Stimuli-Responsive Nanohybrids: Environmental Implications. NANOMATERIALS (BASEL, SWITZERLAND) 2015; 5:1102-1123. [PMID: 28347054 PMCID: PMC5312917 DOI: 10.3390/nano5021102] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 06/04/2015] [Indexed: 01/04/2023]
Abstract
Nanomaterial science and design have shifted from generating single passive nanoparticles to more complex and adaptive multi-component nanohybrids. These adaptive nanohybrids (ANHs) are designed to simultaneously perform multiple functions, while actively responding to the surrounding environment. ANHs are engineered for use as drug delivery carriers, in tissue-engineered templates and scaffolds, adaptive clothing, smart surface coatings, electrical switches and in platforms for diversified functional applications. Such ANHs are composed of carbonaceous, metallic or polymeric materials with stimuli-responsive soft-layer coatings that enable them to perform such switchable functions. Since ANHs are engineered to dynamically transform under different exposure environments, evaluating their environmental behavior will likely require new approaches. Literature on polymer science has established a knowledge core on stimuli-responsive materials. However, translation of such knowledge to environmental health and safety (EHS) of these ANHs has not yet been realized. It is critical to investigate and categorize the potential hazards of ANHs, because exposure in an unintended or shifting environment could present uncertainty in EHS. This article presents a perspective on EHS evaluation of ANHs, proposes a principle to facilitate their identification for environmental evaluation, outlines a stimuli-based classification for ANHs and discusses emerging properties and dynamic aspects for systematic EHS evaluation.
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Affiliation(s)
- Jaime Plazas-Tuttle
- Department of Civil, Architectural, and Environmental Engineering, University of Texas, Austin, TX 78712, USA.
| | - Lewis S Rowles
- Department of Civil, Architectural, and Environmental Engineering, University of Texas, Austin, TX 78712, USA.
| | - Hao Chen
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA.
| | - Joseph H Bisesi
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA.
| | - Tara Sabo-Attwood
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, University of Florida, Gainesville, FL 32611, USA.
| | - Navid B Saleh
- Department of Civil, Architectural, and Environmental Engineering, University of Texas, Austin, TX 78712, USA.
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21
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Patil NG, Basutkar NB, Ambade AV. Visible light-triggered disruption of micelles of an amphiphilic block copolymer with BODIPY at the junction. Chem Commun (Camb) 2015; 51:17708-11. [DOI: 10.1039/c5cc06820g] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Photocleavable BODIPY functionalised with ATRP initiator and alkyne was used to obtain amphiphilic block copolymer in a single step. Micellar assembly of the polymer was disintegrated under visible light irradiation with controlled release of cargo.
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Affiliation(s)
- Naganath G. Patil
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research
| | - Nitin B. Basutkar
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Ashootosh V. Ambade
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
- Academy of Scientific and Innovative Research
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