301
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Tamate R, Ueki T, Shibayama M, Yoshida R. Autonomous unimer-vesicle oscillation by totally synthetic diblock copolymers: effect of block length and polymer concentration on spatio-temporal structures. SOFT MATTER 2017; 13:4559-4568. [PMID: 28440372 DOI: 10.1039/c7sm00563f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, factors controlling autonomous vesicle oscillations exhibited by self-oscillating diblock copolymers were investigated. The self-oscillating diblock copolymer contains poly(ethylene oxide) (PEO) as the hydrophilic block and a random copolymer composed of N-isopropylacrylamide (NIPAAm) with side chains of ruthenium tris(2,2'-bipyridine) (Ru(bpy)3), which catalyzes the Belousov-Zhabotinsky (BZ) reaction, as the self-oscillating block. Recently, our group has reported that a diblock copolymer exhibits a unique autonomous disintegration and reconstruction of the vesicles driven by the periodic redox changes of Ru(bpy)3 in a catalyst-free BZ reaction solution. Nevertheless, the effect of the diblock copolymer architecture on the structure of the vesicles under equilibrium conditions, as well as their oscillation properties under non-equilibrium conditions, has not been clarified thus far. Hence, self-oscillating diblock copolymers with different block lengths were systematically synthesized, and the effects of the block length and polymer concentration on the spatio-temporal vesicle structures were comprehensively discussed.
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Affiliation(s)
- Ryota Tamate
- Department of Materials Engineering School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Takeshi Ueki
- National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.
| | - Mitsuhiro Shibayama
- Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwano-ha, Kashiwa, Chiba 277-8581, Japan
| | - Ryo Yoshida
- Department of Materials Engineering School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
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302
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Adawy A, Amghouz Z, van Hest JCM, Wilson DA. Sub-Micron Polymeric Stomatocytes as Promising Templates for Confined Crystallization and Diffraction Experiments. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1700642. [PMID: 28558135 DOI: 10.1002/smll.201700642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 04/06/2017] [Indexed: 06/07/2023]
Abstract
The possibility of using sub-micrometer polymeric stomatocytes is investigated to effectuate confined crystallization of inorganic compounds. These bowl-shaped polymeric compartments facilitate confined crystallization while their glassy surfaces provide their crystalline cargos with convenient shielding from the electron beam's harsh effects during transmission electron microscopy experiments. Stomatocytes host the growth of a single nanocrystal per nanocavity, and the electron diffraction experiments reveal that their glassy membranes do not interfere with the diffraction patterns obtained from their crystalline cargos. Therefore, it is expected that the encapsulation and crystallization within these compartments can be considered as a promising template (nanovials) that hold and protect nanocrystals and protein clusters from the direct radiation damage before data acquisition, while they are examined by modern crystallography methodologies such as serial femtosecond crystallography.
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Affiliation(s)
- Alaa Adawy
- Institute for Molecules and Materials, Radboud University, 6525, AJ, Nijmegen, The Netherlands
| | - Zakariae Amghouz
- HRTEM Laboratory, Scientific-Technical Services, University of Oviedo-CINN, Oviedo, 33006, Spain
| | - Jan C M van Hest
- Institute for Molecules and Materials, Radboud University, 6525, AJ, Nijmegen, The Netherlands
| | - Daniela A Wilson
- Institute for Molecules and Materials, Radboud University, 6525, AJ, Nijmegen, The Netherlands
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303
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Zhao Y, Li X, Zhao X, Yang Y, Li H, Zhou X, Yuan W. Asymmetrical Polymer Vesicles for Drug delivery and Other Applications. Front Pharmacol 2017; 8:374. [PMID: 28676761 PMCID: PMC5476746 DOI: 10.3389/fphar.2017.00374] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/30/2017] [Indexed: 11/28/2022] Open
Abstract
Scientists have been attracted by polymersomes as versatile drug delivery systems since the last two decades. Polymersomes have the potential to be versatile drug delivery systems because of their tunable membrane formulations, stabilities in vivo, various physicochemical properties, controlled release mechanisms, targeting abilities, and capacities to encapsulate a wide range of drugs and other molecules. Asymmetrical polymersomes are nano- to micro-sized polymeric capsules with asymmetrical membranes, which means, they have different outer and inner coronas so that they can exhibit better endocytosis rate and endosomal escape ability than other polymeric systems with symmetrical membranes. Hence, asymmetrical polymersomes are highly promising as self-assembled nano-delivery systems in the future for in vivo therapeutics delivery and diagnostic imaging applications. In this review, we prepared a summary about recent research progresses of asymmetrical polymersomes in the following aspects: synthesis, preparation, applications in drug delivery and others.
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Affiliation(s)
- Yi Zhao
- School of Pharmacy, Shanghai Jiao Tong UniversityShanghai, China
| | - Xiaoming Li
- School of Pharmacy, Shanghai Jiao Tong UniversityShanghai, China
| | - Xiaotian Zhao
- School of Pharmacy, Shanghai Jiao Tong UniversityShanghai, China
| | - Yunqi Yang
- School of Pharmacy, Shanghai Jiao Tong UniversityShanghai, China
| | - Hui Li
- School of Medicine, University of California, San FranciscoSan Francisco, CA, United States
| | - Xinbo Zhou
- Laboratory of Computer-Aided Drug Design and Discovery, Beijing Institute of Pharmacology and ToxicologyBeijing, China
| | - Weien Yuan
- School of Pharmacy, Shanghai Jiao Tong UniversityShanghai, China
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304
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You XR, Ju XJ, He F, Wang Y, Liu Z, Wang W, Xie R, Chu LY. Polymersomes with Rapid K +-Triggered Drug-Release Behaviors. ACS APPLIED MATERIALS & INTERFACES 2017; 9:19258-19268. [PMID: 28514157 DOI: 10.1021/acsami.7b05701] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel type of smart polymersomes with rapid K+-triggered drug-release properties is developed in this work. Block copolymers with biocompatible poly(ethylene glycol) (PEG) as the hydrophilic block and poly(N-isopropylacrylamide-co-benzo-18-crown-6-acrylamide) (PNB) copolymer as the K+-responsive block are successfully synthesized. Because of the presence of 18-crown-6 units, the PEG-b-PNB block copolymers exhibit excellent K+-dependent phase-transition behaviors, which show a hydrophilic-hydrophobic state in simulated extracellular fluid and present a hydrophilic-hydrophilic state in simulated intracellular fluid. Polymersomes with regular spherical shape and good monodispersity are prepared by the self-assembly of the PEG-b-PNB block copolymers. Both hydrophilic fluorescein isothiocyanate-dextran and hydrophobic doxorubicin are selected as model drugs and are successfully encapsulated into the PEG-b-PNB polymersomes. After being placed in a simulated intracellular fluid with high K+ concentration, the PEG-b-PNB polymersomes immediately disassemble accompanied by the rapid and complete release of drugs. Such K+-responsive polymersomes with the desired drug-release properties provide a novel strategy for advanced intracellular drug delivery and release, which can enhance the safety and efficacy of cancer therapy.
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Affiliation(s)
- Xiang-Ru You
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Xiao-Jie Ju
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Fan He
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Yuan Wang
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Zhuang Liu
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Wei Wang
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Rui Xie
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
| | - Liang-Yin Chu
- School of Chemical Engineering and ‡State Key Laboratory of Polymer Materials Engineering, Sichuan University , Chengdu, Sichuan 610065, P. R. China
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305
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Bains A, Cao Y, Kly S, Wulff JE, Moffitt MG. Controlling Structure and Function of Polymeric Drug Delivery Nanoparticles Using Microfluidics. Mol Pharm 2017; 14:2595-2606. [PMID: 28520436 DOI: 10.1021/acs.molpharmaceut.7b00177] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We demonstrate control of multiscale structure and drug delivery function for paclitaxel (PAX)-loaded polycaprolactone-block-poly(ethylene oxide) (PCL-b-PEO) polymeric nanoparticles (PNPs) via synthesis and flow-directed shear processing in a two-phase gas-liquid microfluidic reactor. This strategy takes a page from the engineering of commodity plastics, where processing rather than polymer chemistry provides an experimental handle on properties and function. PNPs formed from copolymers with three different PCL block lengths show sizes, morphologies, and loading efficiencies that depend on both the PCL block length and the microfluidic flow rate. By varying flow rate and comparing with a conventional bulk method of PNP preparation, we show that flow-variable shear processing provides control of PNP sizes and morphologies and enables slower PAX release times (up to 2 weeks) compared to bulk-prepared PNPs. Antiproliferative effects against cultured MCF-7 breast cancer cells were greatest for PNPs formed at an intermediate flow rate, corresponding to small and low-polydispersity spheres formed uniquely at this flow condition. Formation and flow-directed nanoscale shear processing in gas-liquid microfluidic reactors provides a manufacturing platform for drug delivery PNPs that could enable more effective and selective nanomedicines through multiscale structural control.
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Affiliation(s)
- Aman Bains
- Department of Chemistry, University of Victoria , P.O. Box 3065, Victoria, British Columbia V8W 3 V6, Canada
| | - Yimeng Cao
- Department of Chemistry, University of Victoria , P.O. Box 3065, Victoria, British Columbia V8W 3 V6, Canada
| | - Sundiata Kly
- Department of Chemistry, University of Victoria , P.O. Box 3065, Victoria, British Columbia V8W 3 V6, Canada
| | - Jeremy E Wulff
- Department of Chemistry, University of Victoria , P.O. Box 3065, Victoria, British Columbia V8W 3 V6, Canada
| | - Matthew G Moffitt
- Department of Chemistry, University of Victoria , P.O. Box 3065, Victoria, British Columbia V8W 3 V6, Canada
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306
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Li J, Xiao S, Xu Y, Zuo S, Zha Z, Ke W, He C, Ge Z. Smart Asymmetric Vesicles with Triggered Availability of Inner Cell-Penetrating Shells for Specific Intracellular Drug Delivery. ACS APPLIED MATERIALS & INTERFACES 2017; 9:17727-17735. [PMID: 28489341 DOI: 10.1021/acsami.7b02808] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Smart nanocarriers attract considerable interest in the filed of precision nanomedicine. Dynamic control of the interaction between nanocarriers and cells offers the feasibility that in situ activates cellular internalization at the targeting sites. Herein, we demonstrate a novel class of enzyme-responsive asymmetric polymeric vesicles self-assembled from matrix metalloproteinase (MMP)-cleavable peptide-linked triblock copolymer, poly(ethylene glycol)-GPLGVRG-b-poly(ε-caprolactone)-b-poly(3-guanidinopropyl methacrylamide) (PEG-GPLGVRG-PCL-PGPMA), in which the cell-penetrating PGPMA segments asymmetrically distribute in the outer and inner shells with fractions of 9% and 91%, respectively. Upon treatment with MMP-2 to cleave the stealthy PEG shell, the vesicles undergo morphological transformation into fused multicavity vesicles and small nanoparticles, accompanied by redistribution of PGPMA segments with 76% exposed to the outside. The vesicles after dePEGylation show significantly increased cellular internalization efficiency (∼10 times) as compared to the original ones due to the triggered availability of cell-penetrating shells. The vesicles loading hydrophobic anticancer drug paclitaxel (PTX) in the membrane exhibit significantly enhanced cytotoxicity against MMP-overexpressing HT1080 cells and multicellular spheroids. The proposed vesicular system can serve as a smart nanoplatform for in situ activating intracellular drug delivery in MMP-enriched tumors.
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Affiliation(s)
- Junjie Li
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China , Hefei 230026 Anhui, China
| | - Shiyan Xiao
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China , Hefei 230026 Anhui, China
| | - Yixuan Xu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China , Hefei 230026 Anhui, China
| | - Shuai Zuo
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China , Hefei 230026 Anhui, China
| | - Zengshi Zha
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China , Hefei 230026 Anhui, China
| | - Wendong Ke
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China , Hefei 230026 Anhui, China
| | - Chuanxin He
- College of Chemistry and Environmental Engineering, Shenzhen University , Shenzhen, Guangdong 518060, People's Republic of China
| | - Zhishen Ge
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China , Hefei 230026 Anhui, China
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307
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Mohammadi MR, Nojoomi A, Mozafari M, Dubnika A, Inayathullah M, Rajadas J. Nanomaterials engineering for drug delivery: a hybridization approach. J Mater Chem B 2017; 5:3995-4018. [PMID: 32264132 DOI: 10.1039/c6tb03247h] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The last twenty years have witnessed great advances in biology, medicine, and materials science, leading to the development of various nanoparticle (NP)-mediated drug delivery systems. Innovation in materials science has led the generation of biodegradable, biocompatible, stimuli-responsive, and targeted delivery systems. However, currently available nanotherapeutic technologies are not efficient, which has culminated in the failure of their clinical trials. Despite huge efforts devoted to drug delivery nanotherapeutics, only a small amount of the injected material could reach the desired target. One promising strategy to enhance the efficiency of NP drug delivery is to hybridize multiple materials, where each component could play a critical role in an efficient multipurpose delivery system. This review aims to comprehensively cover different techniques, materials, advantages, and drawbacks of various systems to develop hybrid nano-vesicles for drug delivery. Attention is finally given to the hybridization benefits in overcoming the biological barriers for drug delivery. It is believed that the advent of modern nano-formulations for multifunctional hybrid carriers paves the way for future advances to achieve more efficient drug delivery systems.
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Affiliation(s)
- M Rezaa Mohammadi
- Biomaterials and Advanced Drug Delivery Laboratory, Stanford University School of Medicine, 1050 Arastradero Road, Palo Alto, CA 94304, USA
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308
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Bazban-Shotorbani S, Hasani-Sadrabadi MM, Karkhaneh A, Serpooshan V, Jacob KI, Moshaverinia A, Mahmoudi M. Revisiting structure-property relationship of pH-responsive polymers for drug delivery applications. J Control Release 2017; 253:46-63. [DOI: 10.1016/j.jconrel.2017.02.021] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 01/23/2017] [Accepted: 02/19/2017] [Indexed: 12/17/2022]
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309
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Sherman SE, Xiao Q, Percec V. Mimicking Complex Biological Membranes and Their Programmable Glycan Ligands with Dendrimersomes and Glycodendrimersomes. Chem Rev 2017; 117:6538-6631. [PMID: 28417638 DOI: 10.1021/acs.chemrev.7b00097] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Synthetic vesicles have been assembled and coassembled from phospholipids, their modified versions, and other single amphiphiles into liposomes, and from block copolymers into polymersomes. Their time-consuming synthesis and preparation as stable, monodisperse, and biocompatible liposomes and polymersomes called for the elaboration of new synthetic methodologies. Amphiphilic Janus dendrimers (JDs) and glycodendrimers (JGDs) represent the most recent self-assembling amphiphiles capable of forming monodisperse, stable, and multifunctional unilamellar and multilamellar onion-like vesicles denoted dendrimersomes (DSs) and glycodendrimersomes (GDSs), dendrimercubosomes (DCs), glycodendrimercubosomes (GDCs), and other complex architectures. Amphiphilic JDs consist of hydrophobic dendrons connected to hydrophilic dendrons and can be thought of as monodisperse oligomers of a single amphiphile. They can be functionalized with a variety of molecules such as dyes, and, in the case of JGDs, with carbohydrates. Their iterative modular synthesis provides efficient access to sequence control at the molecular level, resulting in topologies with specific epitope sequence and density. DSs, GDSs, and other architectures from JDs and JGDs serve as powerful tools for mimicking biological membranes and for biomedical applications such as targeted drug and gene delivery and theranostics. This Review covers all aspects of the synthesis of JDs and JGDs and their biological activity and applications after assembly in aqueous media.
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Affiliation(s)
- Samuel E Sherman
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Qi Xiao
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , Philadelphia, Pennsylvania 19104-6323, United States
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310
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Goto A, Yen HC, Anraku Y, Fukushima S, Lai PS, Kato M, Kishimura A, Kataoka K. Facile Preparation of Delivery Platform of Water-Soluble Low-Molecular-Weight Drugs Based on Polyion Complex Vesicle (PICsome) Encapsulating Mesoporous Silica Nanoparticle. ACS Biomater Sci Eng 2017; 3:807-815. [DOI: 10.1021/acsbiomaterials.6b00562] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Akinori Goto
- Watarase
Research Center, Kyorin Pharmaceutical CO., LTD., 1848, Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | | | | | | | - Ping-Shan Lai
- Department
of Chemistry, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 402, Taiwan
| | - Masaru Kato
- Graduate
School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033 Japan
| | | | - Kazunori Kataoka
- Innovation
Center of NanoMedicne, Kawasaki Institute of Industry Promotion, 3-25-14 Tonomachi, Kawasaki-ku, Kawasaki 210-0821, Japan
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311
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Tan J, Huang C, Liu D, Li X, He J, Xu Q, Zhang L. Polymerization-Induced Self-Assembly of Homopolymer and Diblock Copolymer: A Facile Approach for Preparing Polymer Nano-Objects with Higher-Order Morphologies. ACS Macro Lett 2017; 6:298-303. [PMID: 35650906 DOI: 10.1021/acsmacrolett.7b00134] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Polymerization-induced self-assembly of homopolymer and diblock copolymer using a binary mixture of small chain transfer agent (CTA) and macromolecular chain transfer agent (macro-CTA) is reported. With this system, homopolymer and diblock copolymer were formed and chain extended at the same time to form polymer nano-objects. The molar ratio of homopolymer and diblock copolymer had a significant effect on the morphology of the polymer nano-objects. Porous vesicles, porous nanospheres, and micron-sized particles with highly porous inner structure were prepared by this method. We expect that this method will greatly expand the promise of polymerization-induced self-assembly for the synthesis of a range of polymer nano-objects with unique morphologies.
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Affiliation(s)
- Jianbo Tan
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
| | - Chundong Huang
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Dongdong Liu
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Xueliang Li
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Jun He
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Qin Xu
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Li Zhang
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
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312
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Omolo CA, Kalhapure RS, Jadhav M, Rambharose S, Mocktar C, Ndesendo VM, Govender T. Pegylated oleic acid: A promising amphiphilic polymer for nano-antibiotic delivery. Eur J Pharm Biopharm 2017; 112:96-108. [DOI: 10.1016/j.ejpb.2016.11.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 11/17/2016] [Accepted: 11/18/2016] [Indexed: 12/16/2022]
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313
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Hu X, Zhang Y, Xie Z, Jing X, Bellotti A, Gu Z. Stimuli-Responsive Polymersomes for Biomedical Applications. Biomacromolecules 2017; 18:649-673. [DOI: 10.1021/acs.biomac.6b01704] [Citation(s) in RCA: 265] [Impact Index Per Article: 37.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xiuli Hu
- Joint
Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- State
Key Laboratory of Polymer Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin 130022, People’s Republic of China
| | - Yuqi Zhang
- Joint
Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Zhigang Xie
- State
Key Laboratory of Polymer Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin 130022, People’s Republic of China
| | - Xiabin Jing
- State
Key Laboratory of Polymer Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Jilin 130022, People’s Republic of China
| | - Adriano Bellotti
- Joint
Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- Department
of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Zhen Gu
- Joint
Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- Center
for Nanotechnology in Drug Delivery and Division of Molecular Pharmaceutics,
UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
- Department
of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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314
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Zhou J, Ni R, Chau Y. Polymeric vesicle formation via temperature-assisted nanoprecipitation. RSC Adv 2017. [DOI: 10.1039/c7ra01959a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We here report an easy and efficient strategy to prepare submicron-sized polymeric vesicles with tetrahydrofuran (THF) as a good solvent through temperature-assisted nanoprecipitation (TAN).
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Affiliation(s)
- Junli Zhou
- Department of Chemical and Biomolecular Engineering
- The Hong Kong University of Science and Technology
- Kowloon
- China
| | - Rong Ni
- Division of Biomedical Engineering
- The Hong Kong University of Science and Technology
- Kowloon
- China
- Institute for Advanced Study
| | - Ying Chau
- Department of Chemical and Biomolecular Engineering
- The Hong Kong University of Science and Technology
- Kowloon
- China
- Division of Biomedical Engineering
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315
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Tan J, He J, Li X, Xu Q, Huang C, Liu D, Zhang L. Rapid synthesis of well-defined all-acrylic diblock copolymer nano-objects via alcoholic photoinitiated polymerization-induced self-assembly (photo-PISA). Polym Chem 2017. [DOI: 10.1039/c7py01652b] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A series of well-defined all-acrylic poly(hydroxyethyl acrylate)-poly(isobornyl acrylate) (PHEA-PIBOA) diblock copolymer nano-objects were prepared by photoinitiated polymerization-induced self-assembly (photo-PISA).
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Affiliation(s)
- Jianbo Tan
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Jun He
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Xueliang Li
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Qin Xu
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Chundong Huang
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Dongdong Liu
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Li Zhang
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
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316
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Li L, Chao T, Brant J, O'Malley B, Tsourkas A, Li D. Advances in nano-based inner ear delivery systems for the treatment of sensorineural hearing loss. Adv Drug Deliv Rev 2017; 108:2-12. [PMID: 26796230 DOI: 10.1016/j.addr.2016.01.004] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 01/03/2016] [Accepted: 01/04/2016] [Indexed: 01/31/2023]
Abstract
Sensorineural hearing loss (SNHL) is one of the most common diseases, accounting for about 90% of all hearing loss. Leading causes of SNHL include advanced age, ototoxic medications, noise exposure, inherited and autoimmune disorders. Most of SNHL is irreversible and managed with hearing aids or cochlear implants. Although there is increased understanding of the molecular pathophysiology of SNHL, biologic treatment options are limited due to lack of noninvasive targeted delivery systems. Obstacles of targeted inner ear delivery include anatomic inaccessibility, biotherapeutic instability, and nonspecific delivery. Advances in nanotechnology may provide a solution to these barriers. Nanoparticles can stabilize and carry biomaterials across the round window membrane into the inner ear, and ligand bioconjugation onto nanoparticle surfaces allows for specific targeting. A newer technology, nanohydrogel, may offer noninvasive and sustained biotherapeutic delivery into specific inner ear cells. Nanohydrogel may be used for inner ear dialysis, a potential treatment for ototoxicity-induced SNHL.
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Affiliation(s)
- Lilun Li
- Department of Otorhinolaryngology-Head & Neck Surgery, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA; New York University School of Medicine, New York, NY 10016, USA
| | - Tiffany Chao
- Department of Otorhinolaryngology-Head & Neck Surgery, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
| | - Jason Brant
- Department of Otorhinolaryngology-Head & Neck Surgery, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
| | - Bert O'Malley
- Department of Otorhinolaryngology-Head & Neck Surgery, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA
| | - Andrew Tsourkas
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Daqing Li
- Department of Otorhinolaryngology-Head & Neck Surgery, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.
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317
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Huang C, Tan J, Xu Q, He J, Li X, Liu D, Zhang L. Adding a solvophilic comonomer to the polymerization-induced self-assembly of block copolymer and homopolymer: a cooperative strategy for preparing large compound vesicles. RSC Adv 2017. [DOI: 10.1039/c7ra09120f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
We report a RAFT dispersion polymerization of styrene and 4-vinylpyridine in methanol/water at 70 °C. The polymerization was mediated by a binary mixture of DDMAT and mPEG45-DDMAT.
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Affiliation(s)
- Chundong Huang
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Jianbo Tan
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Qin Xu
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Jun He
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Xueliang Li
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Dongdong Liu
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Li Zhang
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
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318
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Shaarani S, Hamid SS, Mohd Kaus NH. The Influence of Pluronic F68 and F127 Nanocarrier on Physicochemical Properties, In vitro Release, and Antiproliferative Activity of Thymoquinone Drug. Pharmacognosy Res 2017; 9:12-20. [PMID: 28250648 PMCID: PMC5330097 DOI: 10.4103/0974-8490.199774] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND This study reports on hydrophobic drug thymoquinone (TQ), an active compound found in the volatile oil of Nigella sativa that exhibits anticancer activities. Nanoformulation of this drug could potentially increase its bioavailability to specific target cells. OBJECTIVE The aim of this study was to formulate TQ into polymer micelle, Pluronic F127 (5.0 wt %) and Pluronic F68 (0.1 wt %), as a drug carrier to enhance its solubility and instability in aqueous media. MATERIALS AND METHODS Polymeric micelles encapsulated TQ were prepared by the microwave-assisted solvent evaporation technique. Fourier transform infrared spectroscopy and ultraviolet-visible spectrophotometer were utilized for qualitative confirmation of micelles encapsulation. The surface morphology and mean particle size of the prepared micelles were determined by using transmission electron microscopy (TEM). Cytotoxicity effect was studied using 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, inner salt (MTS) assay. RESULTS Dynamic laser light scattering (DLS) technique showed hydrodynamic size distribution of optimized micelles of 50 nm, which was in close agreement with the mean particle size obtained from TEM of about 51 nm. Drug release study showed the maximum percentage of TQ release at 61% after 72 h, while the entrapment efficiency of TQ obtained was 46% using PF127. The cytotoxic effect of PF127-encapsulated TQ was considerably higher compared to PF68-encapsulated TQ against MCF7 cells, as they exhibited IC50value of 8 μM and 18 μM, respectively. CONCLUSION This study suggests higher molecular weight Pluronic polymer micelles (F127) with hydrophilic-hydrophobic segments which could be used as a suitable candidate for sustainable delivery of TQ. However, comprehensive studies should be carried out to establish the suitability of Pluronic F127 as a carrier for other drugs with similar challenges as TQ. SUMMARY There is a rising interest in integrating nanotechnology with medicine, creating a nanomedicine aiming for high efficiency and efficacy of disease diagnosis and treatment. In drug delivery, the term nanomedicine describes the nanometer-sized range (1-1000 nm) of a multi-component drug for disease treatments. As such, liposome-based nanoparticulate delivery vehicles have been approved by the Food and Drug Administration (FDA) for clinical applications. The main purpose of introducing nanoscale drug delivery is to improve the pharmacological and pharmacokinetic profiles of therapeutic molecules. Drug or therapeutic molecules can be either released through the cleavage of a covalent linkage between drug molecules and polymers (conjugation) or through the diffusion from a drug and polymer blended matrix (physical encapsulation). Polymers play an important role in the design of nanocarriers for therapeutic deliveries. In Asia, Nigella sativa seed oil has been used traditionally for its various medicinal benefits. One of its most potent compound which is thymoquinone has been intensively investigated for its anti-cancer effects in colorectal carcinoma, breast adenocarcinoma, osteosarcoma, ovarian carcinoma, myeloblastic leukemia, and pancreatic carcinoma. In addition, it is reported to show anti-inflammatory potential, antidiabetic, antihistaminic effects, as well as the ability to alleviate respiratory diseases, rheumatoid arthritis, multiple sclerosis, and Parkinson's disease. This study aims to formulate and characterize different pluronic-based thymoquinone nanocarrier and investigate its effect against breast cancer cells Abbreviations Used: ATR-IR: Attenuated Total Reflectance-Infrared Spectroscopy, CH3CN: Acetonitrile, DLS: Dynamic Light Scattering, MTS: [3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, NPs: Nanoparticles, PF127/TQ: Pluronic F127 encapsulated TQ, PF68/TQ: Pluronic F68 encapsulated TQ, PLGA: Poly-(D,L-lactide-co-glycolide), PVA: Poly-vinylalcohol, TQ: Thymoquinone, UV/VIS: Ultravioletvisible spectrophotometry.
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Affiliation(s)
- Salwa Shaarani
- Department of Physical Chemistry, School of Chemical Science, Universiti Sains Malaysia, 13200 Bertam, Kepala Batas, Pulau Pinang, Malaysia
| | - Shahrul Sahul Hamid
- Oncological and Radiological Sciences Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, 13200 Bertam, Kepala Batas, Pulau Pinang, Malaysia
| | - Noor Haida Mohd Kaus
- Department of Physical Chemistry, School of Chemical Science, Universiti Sains Malaysia, 13200 Bertam, Kepala Batas, Pulau Pinang, Malaysia
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319
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Zhang J, Li Y, Wang J, Qi S, Song X, Tao C, Le Y, Wen N, Chen J. Dual redox-responsive PEG–PPS–cRGD self-crosslinked nanocapsules for targeted chemotherapy of squamous cell carcinoma. RSC Adv 2017. [DOI: 10.1039/c7ra10499e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
A multifunctional branched copolymer, PEG–PPS–cRGD, was designed for developing dual redox-responsive self-crosslinked nanocapsules for targeted chemotherapy of squamous cell carcinoma.
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Affiliation(s)
- Jianjun Zhang
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Yunxia Li
- Department of the Prosthodontics
- The General Hospital of Chinese PLA
- Beijing 100853
- P. R. China
| | - Jiexin Wang
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Shengpei Qi
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Xiaoqing Song
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Cheng Tao
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Yuan Le
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Ning Wen
- Department of the Prosthodontics
- The General Hospital of Chinese PLA
- Beijing 100853
- P. R. China
| | - Jianfeng Chen
- College of Chemical Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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320
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Tan J, Liu D, Bai Y, Huang C, Li X, He J, Xu Q, Zhang X, Zhang L. An insight into aqueous photoinitiated polymerization-induced self-assembly (photo-PISA) for the preparation of diblock copolymer nano-objects. Polym Chem 2017. [DOI: 10.1039/c6py02135b] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Photoinitiated polymerization-induced self-assembly (photo-PISA) is utilized to investigate the sole effect of reaction temperature on PISA.
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Affiliation(s)
- Jianbo Tan
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Dongdong Liu
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Yuhao Bai
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Chundong Huang
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Xueliang Li
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Jun He
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Qin Xu
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Xuechao Zhang
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Li Zhang
- Department of Polymeric Materials and Engineering
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- China
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321
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Patil NG, Basutkar NB, Ambade AV. Copper and silver nanoparticles stabilized by bistriazole-based dendritic amphiphile micelles for 4-nitrophenol reduction. NEW J CHEM 2017. [DOI: 10.1039/c7nj00605e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Copper and silver nanoparticles stabilized on dendritic amphiphiles catalyzed 4-nitrophenol reduction at the ppm level, with particle size influencing catalytic efficiency.
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Affiliation(s)
- Naganath G. Patil
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune-411008
- India
| | - Nitin B. Basutkar
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune-411008
- India
| | - Ashootosh V. Ambade
- Polymer Science and Engineering Division
- CSIR-National Chemical Laboratory
- Dr Homi Bhabha Road
- Pune-411008
- India
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322
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Callari M, Wong S, Lu H, Aldrich-Wright J, de Souza P, Stenzel MH. Drug induced self-assembly of triblock copolymers into polymersomes for the synergistic dual-drug delivery of platinum drugs and paclitaxel. Polym Chem 2017. [DOI: 10.1039/c7py01162h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Co-delivery of two drugs in one nanoparticle is increasingly used to overcome, for example, multi-drug resistance in cancer therapy and therefore suitable drug carriers need to be developed.
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Affiliation(s)
- Manuela Callari
- Centre for Advanced Macromolecular Design. School of Chemistry
- University of New South Wales
- Sydney
- Australia
- School of Medicine
| | - Sandy Wong
- Centre for Advanced Macromolecular Design. School of Chemistry
- University of New South Wales
- Sydney
- Australia
| | - Hongxu Lu
- Centre for Advanced Macromolecular Design. School of Chemistry
- University of New South Wales
- Sydney
- Australia
| | - Janice Aldrich-Wright
- School of Medicine
- Western Sydney University
- Penrith 2579
- Australia
- Nanoscale Organisation and Dynamics Group
| | - Paul de Souza
- School of Medicine
- Western Sydney University
- Penrith 2579
- Australia
- Ingham Institute
| | - Martina H. Stenzel
- Centre for Advanced Macromolecular Design. School of Chemistry
- University of New South Wales
- Sydney
- Australia
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323
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Biodegradable Polymersomes as Nanocarriers for Doxorubicin Hydrochloride: Enhanced Cytotoxicity in MCF-7/ADR Cells and Prolonged Blood Circulation. Pharm Res 2016; 34:610-618. [DOI: 10.1007/s11095-016-2088-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 12/13/2016] [Indexed: 01/22/2023]
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324
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Cheng CC, Liang MC, Liao ZS, Huang JJ, Lee DJ. Self-Assembled Supramolecular Nanogels as a Safe and Effective Drug Delivery Vector for Cancer Therapy. Macromol Biosci 2016; 17. [DOI: 10.1002/mabi.201600370] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/09/2016] [Indexed: 01/07/2023]
Affiliation(s)
- Chih-Chia Cheng
- Graduate Institute of Applied Science and Technology; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Mei-Chih Liang
- Department of Biological Science and Technology; National Chiao Tung University; Hsinchu 30050 Taiwan
| | - Zhi-Sheng Liao
- Graduate Institute of Applied Science and Technology; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Jyun-Jie Huang
- Graduate Institute of Applied Science and Technology; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
| | - Duu-Jong Lee
- Department of Chemical Engineering; National Taiwan University; Taipei 10617 Taiwan
- Department of Chemical Engineering; National Taiwan University of Science and Technology; Taipei 10607 Taiwan
- R&D Center for Membrane Technology; Chung Yuan Christian University; Chungli Taoyuan 32043 Taiwan
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325
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Washington KE, Kularatne RN, Karmegam V, Biewer MC, Stefan MC. Recent advances in aliphatic polyesters for drug delivery applications. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2016; 9. [DOI: 10.1002/wnan.1446] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 09/30/2016] [Accepted: 10/31/2016] [Indexed: 01/24/2023]
Affiliation(s)
| | | | - Vasanthy Karmegam
- Department of Chemistry University of Texas at Dallas Richardson TX USA
| | - Michael C. Biewer
- Department of Chemistry University of Texas at Dallas Richardson TX USA
| | - Mihaela C. Stefan
- Department of Chemistry University of Texas at Dallas Richardson TX USA
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326
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Karandish F, Haldar M, You S, Brooks A, Brooks BD, Guo B, Choi Y, Mallik S. Prostate-Specific Membrane Antigen Targeted Polymersomes for Delivering Mocetinostat and Docetaxel to Prostate Cancer Cell Spheroids. ACS OMEGA 2016; 1:952-962. [PMID: 27917408 PMCID: PMC5131327 DOI: 10.1021/acsomega.6b00126] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 10/25/2016] [Indexed: 05/09/2023]
Abstract
Prostate cancer cells overexpress the prostate-specific membrane antigen (PSMA) receptors on the surface. Targeting the PSMA receptor creates a unique opportunity for drug delivery. Docetaxel is a Food and Drug Administration-approved drug for treating metastatic and androgen-independent prostate cancer, and mocetinostat is a potent inhibitor of class I histone deacetylases. In this study, we prepared reduction-sensitive polymersomes presenting folic acid on the surface and encapsulating either docetaxel or mocetinostat. The presence of folic acid allowed efficient targeting of the PSMA receptor and subsequent internalization of the polymeric vesicles in cultured LNCaP prostate cancer cell spheroids. The intracellular reducing agents efficiently released docetaxel and mocetinostat from the polymersomes. The combination of the two drug-encapsulated polymersome formulations significantly (p < 0.05) decreased the viability of the LNCaP cells (compared to free drugs or control) in three-dimensional spheroid cultures. The calculated combination index value indicated a synergistic effect for the combination of mocetinostat and docetaxel. Thus, our PSMA-targeted drug-encapsulated polymersomes has the potential to lead to a new direction in prostate cancer therapy that decreases the toxicity and increases the efficacy of the drug delivery systems.
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Affiliation(s)
- Fataneh Karandish
- Department of Pharmaceutical Sciences and Department of Physics, North Dakota State University, 1401 Albrecht Blvd., Fargo, North Dakota 58102, United States
| | - Manas
K. Haldar
- Department of Pharmaceutical Sciences and Department of Physics, North Dakota State University, 1401 Albrecht Blvd., Fargo, North Dakota 58102, United States
| | - Seungyong You
- Department of Pharmaceutical Sciences and Department of Physics, North Dakota State University, 1401 Albrecht Blvd., Fargo, North Dakota 58102, United States
| | - Amanda
E. Brooks
- Department of Pharmaceutical Sciences and Department of Physics, North Dakota State University, 1401 Albrecht Blvd., Fargo, North Dakota 58102, United States
| | - Benjamin D. Brooks
- Department of Pharmaceutical Sciences and Department of Physics, North Dakota State University, 1401 Albrecht Blvd., Fargo, North Dakota 58102, United States
| | - Bin Guo
- Department of Pharmaceutical Sciences and Department of Physics, North Dakota State University, 1401 Albrecht Blvd., Fargo, North Dakota 58102, United States
| | - Yongki Choi
- Department of Pharmaceutical Sciences and Department of Physics, North Dakota State University, 1401 Albrecht Blvd., Fargo, North Dakota 58102, United States
| | - Sanku Mallik
- Department of Pharmaceutical Sciences and Department of Physics, North Dakota State University, 1401 Albrecht Blvd., Fargo, North Dakota 58102, United States
- E-mail:
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327
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Laskar P, Dey J, Banik P, Mandal M, Ghosh SK. In Vitro Drug and Gene Delivery Using Random Cationic Copolymers Forming Stable and pH-Sensitive Polymersomes. Macromol Biosci 2016; 17. [PMID: 27879056 DOI: 10.1002/mabi.201600324] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/15/2016] [Indexed: 11/06/2022]
Abstract
Stimuli-sensitive polymeric vesicles or polymersomes as self-assembled colloidal nanocarriers have received paramount importance for their integral role as delivery system for therapeutics and biotherapeutics. This work describes spontaneous polymersome formation at pH 7, as evidenced by surface tension, steady state fluorescence, dynamic light scattering, and microscopic studies, by three hydrophilic random cationic copolymers synthesized using N,N-(dimethylamino)ethyl methacrylate (DMAEM) and methoxy poly(ethylene glycol) monomethacrylate in different mole ratios. The results suggest that methoxy poly(ethylene glycol) chains constitute the bilayer membrane of the polymersomes and DMAEM projects toward water constituting the positively charged surface. The polymersomes have been observed to release their encapsulated guest at acidic pH as a result of transformation into polymeric micelles. All these highly biocompatible cationic polymers show successful gene transfection ability as nonviral vector on human cell line with different potential. Thus these polymers prove their utility as a potential delivery system for hydrophilic model drug as well as genetic material.
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Affiliation(s)
- Partha Laskar
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
| | - Joykrishna Dey
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
| | - Payel Banik
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
| | - Mahitosh Mandal
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
| | - Sudip Kumar Ghosh
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, 721 302, India
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328
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Braunová A, Kostka L, Sivák L, Cuchalová L, Hvězdová Z, Laga R, Filippov S, Černoch P, Pechar M, Janoušková O, Šírová M, Etrych T. Tumor-targeted micelle-forming block copolymers for overcoming of multidrug resistance. J Control Release 2016; 245:41-51. [PMID: 27871991 DOI: 10.1016/j.jconrel.2016.11.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 10/31/2016] [Accepted: 11/17/2016] [Indexed: 11/17/2022]
Abstract
New amphiphilic diblock polymer nanotherapeutics serving simultaneously as a drug delivery system and an inhibitor of multidrug resistance were designed, synthesized, and evaluated for their physico-chemical and biological characteristics. The amphiphilic character of the diblock polymer, containing a hydrophilic block based on the N-(2-hydroxypropyl)methacrylamide copolymer and a hydrophobic poly(propylene oxide) block (PPO), caused self-assembly into polymer micelles with an increased hydrodynamic radius (Rh of approximately 15nm) in aqueous solutions. Doxorubicin (Dox), as a cytostatic drug, was bound to the diblock polymer through a pH-sensitive hydrazone bond, enabling prolonged circulation in blood, the delivery of Dox into a solid tumor and the subsequent stimuli-sensitive controlled release within the tumor mass and tumor cells at a decreased pH. The applicability of micellar nanotherapeutics as drug carriers was confirmed by an in vivo evaluation using EL4 lymphoma-bearing C57BL/6 mice. We observed significantly higher accumulation of micellar conjugates in a solid tumor because of the EPR effect compared with similar polymer-drug conjugates that do not form micellar structures or with the parent free drug. In addition, highly increased anti-tumor efficacy of the micellar polymer nanotherapeutics, even at a sub-optimal dose, was observed. The presence of PPO in the structure of the diblock polymer ensured, during in vitro tests on human and mouse drug-sensitive and resistant cancer cell lines, the inhibition of P-glycoprotein, one of the most frequently expressed ATP-dependent efflux pump that causes multidrug resistance. In addition, we observed highly increased rate of the uptake of the diblock polymer nanotherapeutics within the cells. We suppose that combination of unique properties based on MDR inhibition, stimuli sensitiveness (pH sensitive activation of drug), improved pharmacokinetics and increased uptake into the cells made the described polymer micelle a good candidate for investigation as potential drug delivery system.
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Affiliation(s)
- Alena Braunová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Libor Kostka
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Ladislav Sivák
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Lucie Cuchalová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Zuzana Hvězdová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Richard Laga
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Sergey Filippov
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Peter Černoch
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Michal Pechar
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Olga Janoušková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic
| | - Milada Šírová
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Tomáš Etrych
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague, Czech Republic.
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329
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Thiermann R, Bleul R, Maskos M. Kinetic Control of Block Copolymer Self-Assembly in a Micromixing Device - Mechanistical Insight into Vesicle Formation Process. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600347] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Regina Bleul
- Fraunhofer ICT-IMM; Carl-Zeiss-Straße 18-20 55129 Mainz Germany
| | - Michael Maskos
- Fraunhofer ICT-IMM; Carl-Zeiss-Straße 18-20 55129 Mainz Germany
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330
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Zou Y, Meng F, Deng C, Zhong Z. Robust, tumor-homing and redox-sensitive polymersomal doxorubicin: A superior alternative to Doxil and Caelyx? J Control Release 2016; 239:149-58. [DOI: 10.1016/j.jconrel.2016.08.022] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/18/2016] [Accepted: 08/21/2016] [Indexed: 01/03/2023]
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331
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Song Y, Jiang R, Wang Z, Wang L, Yin Y, Li B, Shi AC. Topological Effect on the Structure of Self-Assembled Aggregates from Amphiphilic Macromolecules in Solution. MACROMOL THEOR SIMUL 2016. [DOI: 10.1002/mats.201600039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yongbing Song
- School of Physics; Nankai University; Tianjin 300071 China
| | - Run Jiang
- School of Physics; Nankai University; Tianjin 300071 China
| | - Zheng Wang
- School of Physics; Nankai University; Tianjin 300071 China
| | - Lang Wang
- School of Physics; Nankai University; Tianjin 300071 China
| | - Yuhua Yin
- School of Physics; Nankai University; Tianjin 300071 China
| | - Baohui Li
- School of Physics; Nankai University; Tianjin 300071 China
| | - An-Chang Shi
- Department of Physics and Astronomy; McMaster University; Hamilton Ontario L8S 4M1 Canada
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332
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Kim MR, Cheong IW. Stimuli-triggered Formation of Polymersomes from W/O/W Multiple Double Emulsion Droplets Containing Poly(styrene)-block-poly(N-isopropylacrylamide-co-spironaphthoxazine methacryloyl). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:9223-9228. [PMID: 27584798 DOI: 10.1021/acs.langmuir.6b02178] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report stimuli-triggered fabrication of polymersomes from water-in-oil-in-water (W/O/W) multiple double emulsion droplets and the dual-stimuli (temperature and UV) responsive behavior of corresponding polymersomes. The polymersome comprises Tween20, cholesterol, and poly(styrene)-block-poly(N-isopropylacrylamide-co-spironaphthoxazine methacryloyl), i.e., PS-b-P(NIPAAm-co-SPO), synthesized by stepwise reversible addition-fragmentation chain transfer (RAFT) polymerization. Amphiphilic PS-b-P(NIPAAm-co-SPO) copolymer forms micelles in water above the critical micelle concentration (CMC) of 0.7 g/L at 23 °C. The micelles show a temperature-driven aggregation among the micelles above 30.6 °C, confirmed by a decrease in UV-vis transmittance. The micelles also show a color change without colloidal instability under 365 nm UV at room temperature. PS-b-P(NIPAAm-co-SPO) plays not only a role of the polymeric surfactant in the preparation of W/O/W multiple double emulsions but also an important role in the stimuli-triggered transformation from multi- to single-core double emulsion droplets under heat and UV light irradiation. It was found that the morphological transformation of W/O/W multiple double emulsions by UV irradiation was much faster than temperature change. Dual-responsive polymersomes were simply prepared after solvent removal and they exhibit stable and reversible size and color variations under temperature and UV-visible changes, respectively.
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Affiliation(s)
- Mi Ri Kim
- School of Applied Chemical Engineering and ‡Department of Nano-Science and Technology, Graduate School, Kyungpook National University , 80 Daehakro, Bukgu, Daegu 41566, Korea
| | - In Woo Cheong
- School of Applied Chemical Engineering and ‡Department of Nano-Science and Technology, Graduate School, Kyungpook National University , 80 Daehakro, Bukgu, Daegu 41566, Korea
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333
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334
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Figueiredo P, Balasubramanian V, Shahbazi MA, Correia A, Wu D, Palivan CG, Hirvonen JT, Santos HA. Angiopep2-functionalized polymersomes for targeted doxorubicin delivery to glioblastoma cells. Int J Pharm 2016; 511:794-803. [DOI: 10.1016/j.ijpharm.2016.07.066] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 07/26/2016] [Accepted: 07/27/2016] [Indexed: 12/11/2022]
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335
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Cholesteryl to improve the cellular uptake of polymersomes within HeLa cells. Int J Pharm 2016; 511:570-578. [DOI: 10.1016/j.ijpharm.2016.07.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 07/15/2016] [Accepted: 07/16/2016] [Indexed: 12/14/2022]
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336
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Abstract
Polymersomes are stable vesicles prepared from amphiphilic polymers and are more stable compared with liposomes. Although these nanovesicles have many attractive properties for in vitro/in vivo applications, liposome-based drug delivery systems are still prevalent in the market. In order to expedite the translational potential and to provide medically valuable formulations, the polymersomes need to be biocompatible and biodegradable. In this review, recent developments for biocompatible and biodegradable polymersomes, including the design of intelligent, targeted, and stimuli-responsive vesicles are summarized.
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337
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Tan J, Huang C, Liu D, Zhang X, Bai Y, Zhang L. Alcoholic Photoinitiated Polymerization-Induced Self-Assembly (Photo-PISA): A Fast Route toward Poly(isobornyl acrylate)-Based Diblock Copolymer Nano-Objects. ACS Macro Lett 2016; 5:894-899. [PMID: 35607218 DOI: 10.1021/acsmacrolett.6b00439] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We report a fast alcoholic photoinitiated polymerization-induced self-assembly (photo-PISA) formulation via photoinitiated RAFT dispersion polymerization of isobornyl acrylate (IBOA) in an ethanol/water mixture at 40 °C using a monomethoxy poly(ethylene glycol) (mPEG) based chain transfer agent. Polymerization proceeded rapidly via the exposure to visible light irradiation (405 nm, 0.5 mW/cm2), and high monomer conversion (>95%) was achieved within 30 min. Kinetic studies confirmed that good control was maintained during the photo-PISA process, and the polymerization can be activated or deactivated by light. Finally, we demonstrated that a diverse set of complex morphologies (spheres, worms, or vesicles) could be achieved by varying reaction parameters, and a phase diagram was constructed.
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Affiliation(s)
- Jianbo Tan
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial
Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
| | - Chundong Huang
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Dongdong Liu
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Xuechao Zhang
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Yuhao Bai
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Li Zhang
- Department
of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
- Guangdong Provincial
Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
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338
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Fang Y, Xue J, Ke L, Liu Y, Shi K. Polymeric lipid vesicles with pH-responsive turning on-off membrane for programed delivery of insulin in GI tract. Drug Deliv 2016; 23:3582-3593. [PMID: 27685178 DOI: 10.1080/10717544.2016.1212440] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
A kind of polymeric lipid vesicles (PLVs) with pH-responsive turning on-off membrane for programed delivery of insulin in gastrointestinal (GI) tract was developed, which was self-assembled from the grafted amphipathic polymer of N-tocopheryl-N'-succinyl-ɛ-poly-l-lysine (TP/SC-g-PLL). By controlling the grafting ratio of hydrophobic alkane and ionizable carboxyl branches, the permeability of membrane was adjustable and thus allowing insulin release in a GI-pH dependent manner. The effects of grafting degree of substitution (DS) on the pH-responsive behavior of the formed vesicles were confirmed by critical aggregation concentration determination, morphology and size characterization. Their transepithelial permeability across the GI tract was proved by both confocal visualization in vitro model of Caco-2 cellular monolayer and in vivo hypoglycemic study in diabetic rats. Accordingly, the work described here indicated that the self-assembled PLVs could be a promising candidate for improving the GI delivery of hydrophilic biomacromolecule agents.
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Affiliation(s)
- Yan Fang
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Jianxiu Xue
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Liyuan Ke
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Yang Liu
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
| | - Kai Shi
- a Department of Pharmaceutics , School of Pharmaceutical Science, Shenyang Pharmaceutical University , Shenyang , China
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339
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Dubey RD, Saneja A, Gupta PK, Gupta PN. Recent advances in drug delivery strategies for improved therapeutic efficacy of gemcitabine. Eur J Pharm Sci 2016; 93:147-62. [PMID: 27531553 DOI: 10.1016/j.ejps.2016.08.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 08/09/2016] [Accepted: 08/10/2016] [Indexed: 02/07/2023]
Abstract
Gemcitabine (2',2'-difluoro-2'-deoxycytidine; dFdC) is an efficacious anticancer agent acting against a wide range of solid tumors, including pancreatic, non-small cell lung, bladder, breast, ovarian, thyroid and multiple myelomas. However, short plasma half-life due to metabolism by cytidine deaminase necessitates administration of high dose, which limits its medical applicability. Further, due to its hydrophilic nature, it cannot traverse cell membranes by passive diffusion and, therefore, enters via nucleoside transporters that may lead to drug resistance. To circumvent these limitations, macromolecular prodrugs and nanocarrier-based formulations of Gemcitabine are gaining wide recognition. The nanoformulations based approaches by virtue of their controlled release and targeted delivery have proved to improve bioavailability, increase therapeutic efficacy and reduce adverse effects of the drug. Furthermore, the combination of Gemcitabine with other anticancer agents as well as siRNAs using nanocarriers has also been investigated in order to enhance its therapeutic potential. This review deals with challenges and recent advances in the delivery of Gemcitabine with particular emphasis on macromolecular prodrugs and nanomedicines.
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Affiliation(s)
- Ravindra Dhar Dubey
- Formulation & Drug Delivery Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-Tawi 180001, India
| | - Ankit Saneja
- Formulation & Drug Delivery Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-Tawi 180001, India
| | - Prasoon K Gupta
- Natural Product Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-Tawi 180001, India.
| | - Prem N Gupta
- Formulation & Drug Delivery Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-Tawi 180001, India.
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340
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Jia T, Sun Z, Lu Y, Gao J, Zou H, Xie F, Zhang G, Xu H, Sun D, Yu Y, Zhong Y. A dual brain-targeting curcumin-loaded polymersomes ameliorated cognitive dysfunction in intrahippocampal amyloid-β1-42-injected mice. Int J Nanomedicine 2016; 11:3765-75. [PMID: 27540290 PMCID: PMC4981163 DOI: 10.2147/ijn.s94622] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Due to the impermeability of the blood–brain barrier and the nonselective distribution of drugs in the brain, the therapeutic access to intractable neurological disorders is challenging. In this study, dual brain-targeting polymersomes (POs) functionalized by transferrin and Tet-1 peptide (Tf/Tet-1-POs) promoted the transportation of curcumin into the brain and provided neuroprotection. The modification of the ligands that bind to the surface of POs was revealed by X-ray photoelectron spectroscopy analysis. The cell uptake of a coculture model of mouse brain capillary endothelial cells with neurons showed that the Tf/Tet-1-POs had significant transportation properties and possessed affinity for neurons. The pharmacokinetic analysis showed that the blood–brain barrier permeability–surface efficiency of the Tf/Tet-1-POs was 0.28 mL/h/g and that the brain tissue uptake rate (% ID/g) was 0.08, which were significant compared with the controls (P<0.05). The curcumin-encapsulated Tf/Tet-1-POs provided neuroprotection and ameliorated cognitive dysfunction in intrahippocampal amyloid-β1–42-injected mice. These results suggest that the dual brain-targeting POs are more capable of drug delivery to the brain that can be exploited as a multiple noninvasive vehicle for targeting therapeutics.
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Affiliation(s)
- Tingting Jia
- Department of Pharmaceutical Sciences, School of Pharmacy, The Second Military Medical University
| | - Zhiguo Sun
- Department of Pharmaceutical Sciences, School of Pharmacy, The Second Military Medical University
| | - Ying Lu
- Department of Pharmaceutical Sciences, School of Pharmacy, The Second Military Medical University
| | - Jie Gao
- Department of Pharmaceutical Sciences, School of Pharmacy, The Second Military Medical University
| | - Hao Zou
- Department of Pharmaceutical Sciences, School of Pharmacy, The Second Military Medical University
| | - Fangyuan Xie
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Shanghai, People's Republic of China
| | - Guoqing Zhang
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Shanghai, People's Republic of China
| | - Hao Xu
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Michigan, Ann Arbor, MI, USA
| | - Duxin Sun
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Michigan, Ann Arbor, MI, USA
| | - Yuan Yu
- Department of Pharmaceutical Sciences, School of Pharmacy, The Second Military Medical University
| | - Yanqiang Zhong
- Department of Pharmaceutical Sciences, School of Pharmacy, The Second Military Medical University
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341
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Till U, Gibot L, Mingotaud C, Vicendo P, Rols MP, Gaucher M, Violleau F, Mingotaud AF. Self-assembled polymeric vectors mixtures: characterization of the polymorphism and existence of synergistic effects in photodynamic therapy. NANOTECHNOLOGY 2016; 27:315102. [PMID: 27334669 DOI: 10.1088/0957-4484/27/31/315102] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The objective of this work was to assess the relation between the purity of polymeric self-assemblies vectors solution and their photodynamic therapeutic efficiency. For this, several amphiphilic block copolymers of poly(ethyleneoxide-b-ε-caprolactone) have been used to form self-assemblies with different morphologies (micelles, worm-like micelles or vesicles). In a first step, controlled mixtures of preformed micelles and vesicles have been characterized both by dynamic light scattering and asymmetrical flow field flow fractionation (AsFlFFF). For this, a custom-made program, STORMS, was developed to analyze DLS data in a thorough manner by providing a large set of fitting parameters. This showed that DLS only sensed the larger vesicles when the micelles/vesicles ratio was 80/20 w/w. On the other hand, AsFlFFF allowed clear detection of the presence of micelles when this same ratio was as low as 10/90. Subsequently, the photodynamic therapy efficiency of various controlled mixtures was assessed using multicellular spheroids when a photosensitizer, pheophorbide a, was encapsulated in the polymer self-assemblies. Some mixtures were shown to be as efficient as monomorphous systems. In some cases, mixtures were found to exhibit a higher PDT efficiency compared to the individual nano-objects, revealing a synergistic effect for the efficient delivery of the photosensitizer. Polymorphous vectors can therefore be superior in therapeutic applications.
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Affiliation(s)
- Ugo Till
- Université de Toulouse, Institut National Polytechnique de Toulouse-Ecole d'Ingénieurs de Purpan, Département Sciences Agronomiques et Agroalimentaires, 75 voie du TOEC, BP 57611, F-31076 Toulouse Cedex 03, France. Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118 route de Narbonne, F-31062, Toulouse Cedex 9, France
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342
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Li R, Pang WM, Zhu QR, Nie KM. Controlled Synthesis of PCL/PVP Copolymer by RAFT Method and Its Hydrophilic Block-Dependent Micellar Behaviors. CHINESE J CHEM PHYS 2016. [DOI: 10.1063/1674-0068/29/cjcp1509203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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343
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Gao YJ, Qiao ZY, Wang H. Polymers with tertiary amine groups for drug delivery and bioimaging. Sci China Chem 2016. [DOI: 10.1007/s11426-015-0516-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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344
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Zhao D, Xu JQ, Yi XQ, Zhang Q, Cheng SX, Zhuo RX, Li F. pH-Activated Targeting Drug Delivery System Based on the Selective Binding of Phenylboronic Acid. ACS APPLIED MATERIALS & INTERFACES 2016; 8:14845-14854. [PMID: 27229625 DOI: 10.1021/acsami.6b04737] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Phenylboronic acid (PBA) is a tumor-targeting molecule, but its nonspecific interaction with normal cells or other components containing cis-diol residues undoubtedly limits its potential application in tumor-targeting drug delivery. Herein, we developed fructose-coated mixed micelles via PBA-terminated polyethylene glycol monostearate (PBA-PEG-C18) and Pluronic P123 (PEG20-PPG70-PEG20) to solve this problem, as the stability of borate formed by PBA and fructose was dramatically dependent on pH. The fluorescence spectroscopic results indicated that the borate formed by PBA and fructose decomposed at a decreased pH, and better binding between PBA and sialic acid (SA) was observed at a low pH. These results implied that the fructose groups decorated on the surface of the micelles could be out-competed by SA at a low pH. In vitro uptake and cytotoxicity studies demonstrated that the fructose coating on the mixed micelles improved the endocytosis and enhanced the cytotoxicity of drug-loaded mixed micelles in HepG2 cells but reduced the cytotoxicity in normal cells. These results demonstrate that a simple decorating strategy may facilitate PBA-targeted nanoparticles for tumor-specific drug delivery.
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Affiliation(s)
- Dan Zhao
- Key Laboratory of Biomedical Polymers of Ministry of Education and College of Chemistry and Molecular Science, Wuhan University , Wuhan 430072, China
| | - Jia-Qi Xu
- Key Laboratory of Biomedical Polymers of Ministry of Education and College of Chemistry and Molecular Science, Wuhan University , Wuhan 430072, China
| | - Xiao-Qing Yi
- Key Laboratory of Biomedical Polymers of Ministry of Education and College of Chemistry and Molecular Science, Wuhan University , Wuhan 430072, China
| | - Quan Zhang
- Key Laboratory of Biomedical Polymers of Ministry of Education and College of Chemistry and Molecular Science, Wuhan University , Wuhan 430072, China
| | - Si-Xue Cheng
- Key Laboratory of Biomedical Polymers of Ministry of Education and College of Chemistry and Molecular Science, Wuhan University , Wuhan 430072, China
| | - Ren-Xi Zhuo
- Key Laboratory of Biomedical Polymers of Ministry of Education and College of Chemistry and Molecular Science, Wuhan University , Wuhan 430072, China
| | - Feng Li
- Key Laboratory of Biomedical Polymers of Ministry of Education and College of Chemistry and Molecular Science, Wuhan University , Wuhan 430072, China
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345
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Pham TTH, Rombouts WH, Fokkink R, Stuart MCA, Cohen Stuart MA, Kleijn JM. Nanoparticle-Templated Formation and Growth Mechanism of Curved Protein Polymer Fibrils. Biomacromolecules 2016; 17:2392-8. [PMID: 27250876 DOI: 10.1021/acs.biomac.6b00486] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We investigated the growth of biosynthetic protein polymers with templated curvature on pluronic nanospheres. The protein has a central silk-like block containing glutamic residues (S(E)) and collagen-like end-blocks (C). The S(E) blocks stack into filaments when their charge is removed (pH <5). Indeed, at low pH curved and circular fibers are formed at the surface of the nanospheres, which keep their shape after removal of the pluronics. The data reveal the mechanism of the templated fibril-growth: The growth of protein assemblies is nucleated in solution; small protein fibrils adsorb on the nanospheres, presumably due to hydrogen bond formation between the silk-like blocks and the pluronic PEO blocks. The surface of the pluronic particles templates further growth. At relatively low protein/pluronic weight ratios, only a fraction of the nanospheres bears protein fibers, pointing to a limiting amount of nuclei in solution. Because the nanospheres capture fibrils at an early stage of growth, they can be used to separate growth and nucleation rates in protein fibril formation. Moreover, the nanoparticle-templated growth of stable curved fibers opens ways to build proteinaceous nanocapsules from designed protein polymers.
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Affiliation(s)
- Thao T H Pham
- Physical Chemistry and Soft Matter, Wageningen University , P.O. Box 8038, NL-6700 EK Wageningen, The Netherlands
| | - Wolf H Rombouts
- Physical Chemistry and Soft Matter, Wageningen University , P.O. Box 8038, NL-6700 EK Wageningen, The Netherlands
| | - Remco Fokkink
- Physical Chemistry and Soft Matter, Wageningen University , P.O. Box 8038, NL-6700 EK Wageningen, The Netherlands
| | - Marc C A Stuart
- Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen , Nijenborgh 7, NL-9747 AG Groningen, The Netherlands
| | - Martien A Cohen Stuart
- Physical Chemistry and Soft Matter, Wageningen University , P.O. Box 8038, NL-6700 EK Wageningen, The Netherlands
| | - J Mieke Kleijn
- Physical Chemistry and Soft Matter, Wageningen University , P.O. Box 8038, NL-6700 EK Wageningen, The Netherlands
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346
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Darabi A, Jessop PG, Cunningham MF. CO2-responsive polymeric materials: synthesis, self-assembly, and functional applications. Chem Soc Rev 2016; 45:4391-436. [PMID: 27284587 DOI: 10.1039/c5cs00873e] [Citation(s) in RCA: 213] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
CO2 is an ideal trigger for switchable or stimuli-responsive materials because it is benign, inexpensive, green, abundant, and does not accumulate in the system. Many different CO2-responsive materials including polymers, latexes, solvents, solutes, gels, surfactants, and catalysts have been prepared. This review focuses on the preparation, self-assembly, and functional applications of CO2-responsive polymers. Detailed discussion is provided on the synthesis of CO2-responsive polymers, in particular using reversible deactivation radical polymerization (RDRP), formerly known as controlled/living radical polymerization (CLRP), a powerful technique for the preparation of well-defined (co)polymers with precise control over molecular weight distribution, chain-end functional groups, and polymer architectural design. Self-assembly in aqueous dispersed media is highlighted as well as emerging potential applications.
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Affiliation(s)
- Ali Darabi
- Department of Chemical Engineering, Queen's University, Kingston, Canada.
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347
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Preparation, Characterization, and Biological Evaluation of Poly(Glutamic Acid)-b-Polyphenylalanine Polymersomes. Polymers (Basel) 2016; 8:polym8060212. [PMID: 30979309 PMCID: PMC6432269 DOI: 10.3390/polym8060212] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 05/22/2016] [Accepted: 05/25/2016] [Indexed: 12/04/2022] Open
Abstract
Different types of amphiphilic macromolecular structures have been developed within recent decades to prepare the polymer particles considered as drug delivery systems. In the present research the series of amphiphilic block-copolymers containing poly(glutamatic acid) as hydrophilic, and polyphenylalanine as hydrophobic blocks was synthesized and characterized. Molecular weights for homo- and copolymers were determined by gel-permeation chromatography (GPC) and amino acid analysis, respectively. The copolymers obtained were applied for preparation of polymer particles. The specific morphology of prepared polymerosomes was proved using transmission electron microscopy (TEM). The influence on particle size of polymer concentration and pH used for self-assembly, as well as on the length of hydrophobic and hydrophilic blocks of applied copolymers, was studied by dynamic light scattering (DLS). Depending on different experimental conditions, the formation of nanoparticles with sizes from 60 to 350 nm was observed. The surface of polymersomes was modified with model protein (enzyme). No loss in biocatalytic activity was detected. Additionally, the process of encapsulation of model dyes was developed and the possibility of intracellular delivery of the dye-loaded nanoparticles was proved. Thus, the nanoparticles discussed can be considered for the creation of modern drug delivery systems.
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348
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Wang M, Li J, Li X, Mu H, Zhang X, Shi Y, Chu Y, Wang A, Wu Z, Sun K. Magnetically and pH dual responsive dendrosomes for tumor accumulation enhanced folate-targeted hybrid drug delivery. J Control Release 2016; 232:161-74. [DOI: 10.1016/j.jconrel.2016.04.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 04/06/2016] [Accepted: 04/08/2016] [Indexed: 12/11/2022]
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349
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do Nascimento DF, Arriaga LR, Eggersdorfer M, Ziblat R, Marques MDFV, Reynaud F, Koehler SA, Weitz DA. Microfluidic Fabrication of Pluronic Vesicles with Controlled Permeability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:5350-5. [PMID: 27192611 DOI: 10.1021/acs.langmuir.6b01399] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Block copolymers with a low hydrophilic-to-lipophilic balance form membranes that are highly permeable to hydrophilic molecules. Polymersomes with this type of membrane enable the controllable release of molecules without membrane rupture. However, these polymersomes are difficult to assemble because of their low hydrophobicity. Here, we report a microfluidic approach to the production of these polymersomes using double-emulsion drops with ultrathin shells as templates. The small thickness of the middle oil phase enables the attraction of the hydrophobic blocks of the polymers adsorbed at each of the oil/water interfaces of the double emulsions; this results in the dewetting of the oil from the surface of the innermost water drops of the double emulsions and the ultimate formation of the polymersome. This approach to polymersome fabrication enables control of the vesicle size and results in the efficient encapsulation of hydrophilic ingredients that can be released through the polymer membrane without membrane rupture. We apply our approach to the fabrication of Pluronic L121 vesicles and characterize the permeability of their membranes. Furthermore, we show that membrane permeability can be tuned by blending different Pluronic polymers. Our work thus describes a route to producing Pluronic vesicles that are useful for the controlled release of hydrophilic ingredients.
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Affiliation(s)
- Débora F do Nascimento
- School of Engineering and Applied Sciences and Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States
- Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro , Rio de Janeiro 21941-598, Brasil
| | - Laura R Arriaga
- School of Engineering and Applied Sciences and Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States
| | - Max Eggersdorfer
- School of Engineering and Applied Sciences and Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States
| | - Roy Ziblat
- School of Engineering and Applied Sciences and Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States
| | - Maria de Fátima V Marques
- Instituto de Macromoléculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro , Rio de Janeiro 21941-598, Brasil
| | - Franceline Reynaud
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro , Rio de Janeiro 21941-902, Brasil
| | - Stephan A Koehler
- School of Engineering and Applied Sciences and Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States
| | - David A Weitz
- School of Engineering and Applied Sciences and Department of Physics, Harvard University , Cambridge, Massachusetts 02138, United States
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350
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Affiliation(s)
- Markus Müllner
- School of Chemistry; Key Centre for Polymers and Colloids; The University of Sydney; Sydney NSW 2006 Australia
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