1
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Mohammad SA, Toragall VB, Fortenberry A, Shofolawe-Bakare O, Sulochana S, Heath K, Owolabi I, Tassin G, Flynt AS, Smith AE, Werfel T. Postpolymerization Modification of Poly(2-vinyl-4,4-dimethyl azlactone) as a Versatile Strategy for Drug Conjugation and Stimuli-Responsive Release. Biomacromolecules 2024; 25:2621-2634. [PMID: 38457653 PMCID: PMC11194783 DOI: 10.1021/acs.biomac.4c00181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2024]
Abstract
Postpolymerization modification of highly defined "scaffold" polymers is a promising approach for overcoming the existing limitations of controlled radical polymerization such as batch-to-batch inconsistencies, accessibility to different monomers, and compatibility with harsh synthesis conditions. Using multiple physicochemical characterization techniques, we demonstrate that poly(2-vinyl-4,4-dimethyl azlactone) (PVDMA) scaffolds can be efficiently modified with a coumarin derivative, doxorubicin, and camptothecin small molecule drugs. Subsequently, we show that coumarin-modified PVDMA has a high cellular biocompatibility and that coumarin derivatives are liberated from the polymer in the intracellular environment for cytosolic accumulation. In addition, we report the pharmacokinetics, biodistribution, and antitumor efficacy of a PVDMA-based polymer for the first time, demonstrating unique accumulation patterns based on the administration route (i.e., intravenous vs oral), efficient tumor uptake, and tumor growth inhibition in 4T1 orthotopic triple negative breast cancer (TNBC) xenografts. This work establishes the utility of PVDMA as a versatile chemical platform for producing polymer-drug conjugates with a tunable, stimuli-responsive delivery.
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Affiliation(s)
- Sk Arif Mohammad
- Department of Biomedical Engineering, University of Mississippi, University, MS, 38677, USA
| | - Veeresh B. Toragall
- Department of Biomedical Engineering, University of Mississippi, University, MS, 38677, USA
| | - Alex Fortenberry
- Department of Chemical Engineering, University of Mississippi, University, MS, 38677, USA
| | | | - Suresh Sulochana
- Center of Biomedical Research Excellence in Natural Products Neuroscience, University of Mississippi, University, MS, 38677, USA
| | - Katie Heath
- Center of Biomedical Research Excellence in Natural Products Neuroscience, University of Mississippi, University, MS, 38677, USA
| | - Iyanuoluwani Owolabi
- Center for Molecular and Cellular Biosciences, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Garrett Tassin
- Center for Molecular and Cellular Biosciences, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Alex S. Flynt
- Center for Molecular and Cellular Biosciences, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Adam E. Smith
- Department of Biomedical Engineering, University of Mississippi, University, MS, 38677, USA
- Department of Chemical Engineering, University of Mississippi, University, MS, 38677, USA
| | - Thomas Werfel
- Department of Biomedical Engineering, University of Mississippi, University, MS, 38677, USA
- Department of Chemical Engineering, University of Mississippi, University, MS, 38677, USA
- Department of BioMolecular Sciences, University of Mississippi, University, MS, 38677, USA
- Cancer Center and Research Institute, University of Mississippi Medical Center, Jackson, MS, 39216, USA
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2
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Telaretti Leggieri MR, Kaldéus T, Johansson M, Malmström E. PDMAEMA from α to ω chain ends: tools for elucidating the structure of poly(2-(dimethylamino)ethyl methacrylate). Polym Chem 2023. [DOI: 10.1039/d2py01604d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
An in-depth characterization of PDMAEMA prepared by ATRP was conducted, with a focus on end group analysis. This work discusses analytical tools providing essential information about the extent of control over DMAEMA polymerization and chain extension.
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Affiliation(s)
- Maria Rosella Telaretti Leggieri
- Division of Coating Technology, Department of Fibre and Polymer Technology, School of Engineering Science in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 56–58, SE-100 44 Stockholm, Sweden
| | - Tahani Kaldéus
- Division of Coating Technology, Department of Fibre and Polymer Technology, School of Engineering Science in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 56–58, SE-100 44 Stockholm, Sweden
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56–58, SE-100 44 Stockholm, Sweden
| | - Mats Johansson
- Division of Coating Technology, Department of Fibre and Polymer Technology, School of Engineering Science in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 56–58, SE-100 44 Stockholm, Sweden
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56–58, SE-100 44 Stockholm, Sweden
| | - Eva Malmström
- Division of Coating Technology, Department of Fibre and Polymer Technology, School of Engineering Science in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Teknikringen 56–58, SE-100 44 Stockholm, Sweden
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56–58, SE-100 44 Stockholm, Sweden
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3
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Lechuga-Islas VD, Trejo-Maldonado M, Anufriev I, Nischang I, Terzioğlu İ, Ulbrich J, Guerrero-Santos R, Elizalde-Herrera LE, Schubert US, Guerrero-Sánchez C. All-Aqueous, Surfactant-Free, and pH-Driven Nanoformulation Methods of Dual-Responsive Polymer Nanoparticles and their Potential use as Nanocarriers of pH-Sensitive Drugs. Macromol Biosci 2023; 23:e2200262. [PMID: 36259557 DOI: 10.1002/mabi.202200262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/16/2022] [Indexed: 01/19/2023]
Abstract
All-aqueous, surfactant-free, and pH-driven nanoformulation methods to generate pH- and temperature-responsive polymer nanoparticles (NPs) are described. Copolymers comprising a poly(methyl methacrylate) (PMMA) backbone with a few units of 2-(dimethylamino)ethyl methacrylate (DMAEMA) are solubilized in acidic buffer (pH 2.0) to produce pH-sensitive NPs. Copolymers of different molar mass (2.3-11.5 kg mol-1 ) and DMAEMA composition (7.3-14.2 mol%) are evaluated using a "conventional" pH-driven nanoformulation method (i.e., adding an aqueous polymer solution (acidic buffer) into an aqueous non-solvent (basic buffer)) and a robotized method for pH adjustment of polymer dispersions. Dynamic light scattering, zeta-potential (ζ), and sedimentation-diffusion analyses suggest the formation of dual-responsive NPs of tunable size (from 20 to 110 nm) being stable for at least 28 days in the pH and temperature intervals from 2.0 to 6.0 and 25 to 50 °C, respectively. Ultraviolet-visible spectroscopic experiments show that these NPs can act as nanocarriers for the pH-sensitive dipyridamole drug, expanding its bioavailability and potential controlled release as a function of pH and temperature. These approaches offer alternative strategies to prepare stimuli-responsive NPs, avoiding the use of harmful solvents and complex purification steps, and improving the availability of biocompatible polymer nanoformulations for specific controlled release of pH-sensitive cargos.
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Affiliation(s)
- Víctor D Lechuga-Islas
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.,Department of Macromolecular Chemistry and Nanomaterials, Research Center of Applied Chemistry (CIQA), Enrique Reyna H. 140, Saltillo, 25294, Mexico
| | - Melisa Trejo-Maldonado
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.,Department of Macromolecular Chemistry and Nanomaterials, Research Center of Applied Chemistry (CIQA), Enrique Reyna H. 140, Saltillo, 25294, Mexico
| | - Ilya Anufriev
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Ivo Nischang
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - İpek Terzioğlu
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.,Department of Polymer Science and Technology, Middle East Technical University, Dumlupınar Blv. 1, Çankaya, Ankara, 06800, Turkey
| | - Jens Ulbrich
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany
| | - Ramiro Guerrero-Santos
- Department of Macromolecular Chemistry and Nanomaterials, Research Center of Applied Chemistry (CIQA), Enrique Reyna H. 140, Saltillo, 25294, Mexico
| | - Luis E Elizalde-Herrera
- Department of Macromolecular Chemistry and Nanomaterials, Research Center of Applied Chemistry (CIQA), Enrique Reyna H. 140, Saltillo, 25294, Mexico
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Carlos Guerrero-Sánchez
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.,Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
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4
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Tomara M, Selianitis D, Pispas S. Dual-Responsive Amphiphilic P(DMAEMA-co-LMA-co-OEGMA) Terpolymer Nano-Assemblies in Aqueous Media. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12213791. [PMID: 36364568 PMCID: PMC9659099 DOI: 10.3390/nano12213791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/04/2022] [Accepted: 10/24/2022] [Indexed: 06/12/2023]
Abstract
This work reports on the synthesis and self-assembly of a novel series of dual-responsive poly[2-(dimethylamino)ethylmethacrylate-co-laurylmethacrylate-co-(oligoethyleneglycol)methacrylate], P(DMAEMA-co-LMA-co-OEGMA)statistical terpolymers in aqueous solutions. Five P(DMAEMA-co-LMA-co-OEGMA) amphiphilic terpolymers, having different content of the three monomers, were synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. The success of the synthesis was confirmed by the molecular characterization of the terpolymers via size exclusion chromatography (SEC) for the determination of molecular weights and the molecular weight distributions. By using nuclear magnetic resonance (1H-NMR) and Fourier-transform infrared (FTIR) spectroscopy, it was possible to determine the exact composition of the terpolymers. Dynamic light scattering (DLS) and fluorescence spectroscopy (FS) indicated the formation of P(DMAEMA-co-LMA-co-OEGMA) unimolecular or multichain aggregates in aqueous solutions, as a response to pH, temperature and ionic strength changes, with their dimensions being largely affected. The amphiphilic terpolymers were able to encapsulate the hydrophobic drug curcumin (CUR) and demonstrate stability to fetal bovine serum (FBS) solutions. These terpolymer aggregates were studied by DLS, FS and UV-Vis, and it was found that they may have been used as potential nanocarriers for drug delivery and bio-imaging applications.
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5
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Davies S, Hu Y, Jiang N, Montelongo Y, Richardson A, Blyth J, Yetisen AK. Reversible photonic hydrogel sensors via holographic interference lithography. Biosens Bioelectron 2022; 207:114206. [PMID: 35339821 DOI: 10.1016/j.bios.2022.114206] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/08/2022] [Accepted: 03/19/2022] [Indexed: 02/02/2023]
Abstract
Continuous monitoring of physiological conditions and biomarkers via optical holographic sensors is an area of growing interest to facilitate the expansion of personalised medicine. Here, a facile laser-induced dual polymerization method is developed to fabricate holographic hydrogel sensors for the continuous and reversible colorimetric determination of pH variations over a physiological range in serum (pH 7-9). Readout parameters simulated through a Finite-difference time-domain Yee's algorithm retrieve the spectral response through expansion. Laser lithography of holographic hydrogel sensor fabrication is achieved via a single 355 nm laser pulse to initiate polymerization of ultrafine hydrogel fringes. Eliminating the requirement for complex processing of toxic components and streamlining the synthetic procedure provides a simpler route to mass production. Optimised pH-responsive hydrogels contain amine bearing functional co-monomers demonstrating reversible Bragg wavelength shifts of 172 nm across the entire visible wavelength range with pH variation from 7.0 to 9.0 upon illumination with broadband light. Photolithographic recording of information shows the ability to convey detailed information to users for qualitative identification of pH. Holographic sensor reversibility over 20 cycles showed minimal variation in replay wavelength supporting reliable and consistent readout, with optimised sensors showing rapid response times of <5 min. The developed sensors demonstrate the application to continuous monitoring in biological fluids, withstanding interference from electrolytes, saccharides, and proteins colorimetrically identifying bovine serum pH over a physiological range. The holographic sensors benefit point-of-care pH analysis of biological analytes which could be applied to the identification of blood gas disorders and wound regeneration monitoring through colorimetric readouts.
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Affiliation(s)
- Samuel Davies
- Department of Chemical Engineering, Imperial College London, London, SW7 2BU, UK
| | - Yubing Hu
- Department of Chemical Engineering, Imperial College London, London, SW7 2BU, UK.
| | - Nan Jiang
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, China.
| | - Yunuen Montelongo
- Department of Engineering Science, University of Oxford, Oxford, OX1 3PJ, UK
| | - Andreas Richardson
- Department of Chemical Engineering, Imperial College London, London, SW7 2BU, UK
| | - Jeff Blyth
- Department of Chemical Engineering, Imperial College London, London, SW7 2BU, UK
| | - Ali K Yetisen
- Department of Chemical Engineering, Imperial College London, London, SW7 2BU, UK
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6
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Zhang C, Chen J, Song Y, Luo J, Jin P, Wang X, Xin L, Qiu F, Yao J, Wang G, Huang P. Ultrasound-Enhanced Reactive Oxygen Species Responsive Charge-Reversal Polymeric Nanocarriers for Efficient Pancreatic Cancer Gene Delivery. ACS APPLIED MATERIALS & INTERFACES 2022; 14:2587-2596. [PMID: 34982524 DOI: 10.1021/acsami.1c20030] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Inefficient intracellular gene release and transfection limit nonviral gene delivery applications in cancer therapy. Reactive oxygen species (ROS) responsive nonviral gene delivery is the most widely explored strategy for such applications, yet the development of fast and safe ROS responsive nanocarriers proves to be a challenge because of the intracellular chemical equilibrium of high ROS and glutathione levels. Here, we report an ultrasound-enhanced ROS responsive charge-reversal polymeric nanocarrier (BTIL) for fast and efficient pancreatic cancer gene delivery. The BTIL is composed of B-PDEAEA/DNA polyplex-based cores and IR780-loaded liposome coatings. The IR780 is able to produce an excess of ROS under low intensity ultrasound irradiation, thus disequilibrating the chemical equilibrium of ROS and glutathione, and promoting the ROS-responsive positive-to-negative charge-reversal of the B-PDEAEA polymer. This charge conversion results in fast polyplex dissociation and intracellular gene release, inducing efficient gene transfection and cancer cell apoptosis. Moreover, following the intravenous administration, BTIL maintains a stable and long circulation in the bloodstream, achieves orthotopic pancreatic ductal adenocarcinoma distribution, and exhibits potent antitumor activity with negligible side effects. Our results reveal the proposed strategy to be both promising and universal for the development of fast and safe ROS responsive nonviral gene delivery in cancer therapy.
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Affiliation(s)
- Cong Zhang
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Jifan Chen
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Yue Song
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Jiali Luo
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Peile Jin
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Xue Wang
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Lei Xin
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Fuqiang Qiu
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Jianting Yao
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Guowei Wang
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311200, China
| | - Pintong Huang
- Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
- Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, Zhejiang University, Hangzhou 310009, China
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7
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Shevtsov V, Hsin TY, Shieh YT. Preparation of amphiphilic copolymers via base-catalyzed hydrolysis of quaternized poly[2-(dimethylamino)ethyl methacrylate]. Polym Chem 2022. [DOI: 10.1039/d1py01697k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The multi-stimuli-responsiveness of tertiary amine-containing polyacrylates makes them highly attractive for use in a wide range of applications. In the last decade, poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA) has received exceptionally large attention...
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8
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Jerca FA, Jerca VV, Hoogenboom R. In Vitro Assessment of the Hydrolytic Stability of Poly(2-isopropenyl-2-oxazoline). Biomacromolecules 2021; 22:5020-5032. [PMID: 34753285 DOI: 10.1021/acs.biomac.1c00994] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Poly(2-isopropenyl-2-oxazoline) (PiPOx) is emerging as a promising, versatile polymer platform to design functional materials and particularly biomaterials that rely on the hydrophilic character of the 2-oxazoline side units. To be able to assess the applicability of PiPOx in a biomedical context, it is essential to understand its stability and degradation behavior in physiological conditions. In the present work, the hydrolytic stability of PiPOx was systematically investigated as a function of pH during incubation in various buffers. PiPOx was found to be stable in deionized water (pH 6.9), to have good stability in basic conditions (pH 8 and 9), to be satisfactorily stable in neutral conditions (pH 7.4), and to have moderate to low stability in acidic conditions (decreases drastically from pH 6 to pH 1.2). At pH 4, PiPOx formed a crosslinked network in a timeframe of hours, while at pH 1.2, PiPOx was transformed to a water-soluble poly(N-(2-hydroxyethyl)methacrylamide) type of structure over the course of 2 weeks. In vitro stability assays were performed in phosphate-buffered saline (pH 7.4), simulated body fluid (SBF) (pH 7.4), simulated saliva (pH 6.4), simulated intestinal fluid (pH 6.8), and plasma (pH 7.4) revealing that PiPOx is stable in these SBFs up to 1 week of incubation. When incubated in simulated gastric fluid (pH 1.2), PiPOx exhibited a similar degradation behavior to that observed in the buffer at pH 1.2, rendering a water-soluble structure. The presented results on the stability of PiPOx will be important for future use of PiPOx for the development of drug-delivery systems and biomedical applications, such as hydrogels.
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Affiliation(s)
- Florica Adriana Jerca
- Centre of Organic Chemistry "Costin D. Nenitzescu", Romanian Academy, 202B Spl. Independentei CP 35-108, 060023 Bucharest, Romania
| | - Valentin Victor Jerca
- Centre of Organic Chemistry "Costin D. Nenitzescu", Romanian Academy, 202B Spl. Independentei CP 35-108, 060023 Bucharest, Romania
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, B-9000 Ghent, Belgium
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9
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Gayathri V, Jaisankar SN, Samanta D. Temperature and pH responsive polymers: sensing applications. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1988636] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Varnakumar Gayathri
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
| | - Sellamuthu Nagappan Jaisankar
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
| | - Debasis Samanta
- Polymer Science & Technology division, CSIR-Central Leather Research Institute, Chennai, India
- Academy of Scientific and Innovative Research, Ghaziabad, Uttar Pradesh, India
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10
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Zhang Y, Hu Q, Yang S, Wang T, Sun W, Tong Z. Unique Self-Reinforcing and Rapid Self-Healing Polyampholyte Hydrogels with a pH-Induced Shape Memory Effect. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02657] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yuancheng Zhang
- Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
- Liming Research & Design Institute of Chemical Industry Co., Ltd., Luoyang 471000, China
| | - Qiqian Hu
- Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
| | - Shurui Yang
- Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
| | - Tao Wang
- Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
- Guangdong Provincial Key Enterprise Laboratory of Novel Polyamide 6 Functional Fiber Materials Research and Application, Jiangmen 529100, China
| | - Weixiang Sun
- Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
- Guangdong Provincial Key Enterprise Laboratory of Novel Polyamide 6 Functional Fiber Materials Research and Application, Jiangmen 529100, China
| | - Zhen Tong
- Research Institute of Materials Science, South China University of Technology, Guangzhou 510640, China
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11
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Kubiak JM, Morje AP, Lewis DJ, Wilson SL, Macfarlane RJ. Dynamic Manipulation of DNA-Programmed Crystals Embedded in a Polyelectrolyte Hydrogel. ACS APPLIED MATERIALS & INTERFACES 2021; 13:11215-11223. [PMID: 33645965 DOI: 10.1021/acsami.0c23097] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
DNA is a powerful tool for programming the three-dimensional organization of nanomaterials, where the specificity of nucleotide base-pairing can enable precise, complex, and dynamically addressable structures like colloidal crystals. However, because these DNA-programmed materials are often only stable in solution, their organization can be easily disrupted by changes to its local environment. Methods to stabilize these materials have been developed, but often come at the expense of altering or permanently fixing the materials' structures, removing many of the benefits of using DNA interactions to program assembly. Thus, these methods limit the application of DNA-assembled structures as dynamic and programmable material components. Here, a method is presented to resolve these drawbacks for DNA-grafted nanoparticles, also known as Programmable Atom Equivalents (PAEs), by embedding assembled lattices within a hydrogel matrix. The preformed lattices are exposed to polymerizable residues that electrostatically bind to the charged backbone of the DNA ligands and form a continuous, permeating gel network that stabilizes the colloidal crystals upon introduction of a radical initiator. After embedding PAEs in a hydrogel, deformation of the macroscopic matrix results in concomitant deformation of the PAE lattices, allowing superlattice structural changes to be induced by chemical methods (such as changing solute concentration to alter swelling pressure) or by application of mechanical strain. Changes to the structure of the PAE lattices are reversible and repeatable over multiple cycles and can be either isotropic (such as by swelling) or anisotropic (such as by mechanical deformation). This method of embedding nanoparticle crystals inside of a flexible and environmentally responsive hydrogel is therefore a useful tool in extending the utility of PAEs and other micro- and nanostructures assembled with DNA.
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Affiliation(s)
- Joshua M Kubiak
- Department of Materials Science and Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Amogh P Morje
- Department of Materials Science and Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Diana J Lewis
- Department of Materials Science and Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
- The Charles Stark Draper Laboratory, Inc., 555 Technology Square, Cambridge, Massachusetts 02139, United States
| | - Sara L Wilson
- Department of Materials Science and Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Robert J Macfarlane
- Department of Materials Science and Engineering, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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12
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Stimuli-responsive polymersomes of poly [2-(dimethylamino) ethyl methacrylate]-b-polystyrene. Polym Bull (Berl) 2021. [DOI: 10.1007/s00289-020-03533-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Klemm P, Huschke S, Rodewald M, Ehteshamzad N, Behnke M, Wang X, Cinar G, Nischang I, Hoeppener S, Weber C, Press AT, Höppener C, Meyer T, Deckert V, Schmitt M, Popp J, Bauer M, Schubert S. Characterization of a library of vitamin A-functionalized polymethacrylate-based nanoparticles for siRNA delivery. Polym Chem 2021. [DOI: 10.1039/d0py01626h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A 60-membered library of vitamin A-functionalized P(MMA-stat-DMAEMA)-b-PPEGMA block copolymers was synthesized by RAFT polymerization. From these, nanoparticles containing genetic material were formulated and fully characterized.
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14
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Quiñonez-Angulo P, Hutchinson RA, Licea-Claveríe Á, Saldívar-Guerra E, Zapata-González I. The influences of monomer structure and solvent on the radical copolymerization of tertiary amine and PEGylated methacrylates. Polym Chem 2021. [DOI: 10.1039/d1py00750e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This work presents a meticulous and rigorous investigation of reactivity ratios of commonly used monomers (PEGMA, DEAEMA, and DMAEMA) with high importance for stimuli-responsive materials; a copolymerization mini-library with 9 systems is reported.
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Affiliation(s)
- Priscila Quiñonez-Angulo
- Centro de Graduados e Investigación en Química, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, A.P. 1166, C.P. 22430 Tijuana, B.C., Mexico
| | - Robin A. Hutchinson
- Department of Chemical Engineering, Dupuis Hall, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - Ángel Licea-Claveríe
- Centro de Graduados e Investigación en Química, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, A.P. 1166, C.P. 22430 Tijuana, B.C., Mexico
| | - Enrique Saldívar-Guerra
- Centro de Investigación en Química Aplicada (CIQA), Blvd. Enrique Reyna 140, Saltillo, Coahuila, 25253, Mexico
| | - Iván Zapata-González
- Cátedras CONACYT, Centro de Graduados e Investigación en Química, Tecnológico Nacional de México/Instituto Tecnológico de Tijuana, C.P. 22430 Tijuana, B.C., Mexico
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15
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Gao Y, Wu X, Qi C. Janus-Like Single-Chain Polymer Nanoparticles as Two-in-One Emulsifiers for Aqueous and Nonaqueous Pickering Emulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:11467-11476. [PMID: 32975954 DOI: 10.1021/acs.langmuir.0c01756] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The exploration of Pickering emulsions is very significant owing to their versatile and important applications in many scopes. In this study, synthesis of a novel kind of single-chain polymer nanoparticle (SCPN) and its stabilized Pickering emulsions were demonstrated. To this end, linear-dendritic diblock copolymers consisting of poly((2-dimethylamino) ethyl methacrylate) (PDMAEMA) blocks and four-generation dendritic aliphatic polyester blocks (G4) have been first synthesized by the combination of click chemistry and reversible addition-fragmentation chain transfer (RAFT) polymerization reaction. The subsequent intramolecular cross-linking of the PDMAEMA block of PDMAEMA-b-G4 copolymers in DMF using 1,4-diiodobutane as cross-linkers afforded Janus-like SCPNs that exhibited a cross-linked PDMAEMA head tethered by a short dendritic tail. The molecular weight and distribution together with the structure of polymers were carefully characterized by GPC and NMR spectroscopy. By the employment of the as-synthesized Janus-like SCPNs as Pickering emulsifiers, aqueous and nonaqueous Pickering emulsions including water-in-oil and oil-in-oil as well as ionic liquid-in-oil were generated. Under the same conditions, it was found that the long-term stabilities of Pickering emulsions stabilized by Janus-like SCPNs were superior to those of Pickering emulsions stabilized by their linear quaternized PDMAEMA-b-G4 by CH3I analogous.
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Affiliation(s)
- Yong Gao
- Key Laboratory of Alternative Technologies for Fine Chemicals Process of Zhejiang Province, College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang 312000, China
- College of Chemistry and Key Lab of Environment-Friendly Chemistry and Application in Ministry of Education; Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Xiangtan University, Xiangtan, Hunan Province 411105, China
| | - Xionghui Wu
- College of Chemistry and Key Lab of Environment-Friendly Chemistry and Application in Ministry of Education; Key Laboratory of Polymeric Materials & Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, Xiangtan University, Xiangtan, Hunan Province 411105, China
| | - Chenze Qi
- Key Laboratory of Alternative Technologies for Fine Chemicals Process of Zhejiang Province, College of Chemistry and Chemical Engineering, Shaoxing University, Shaoxing, Zhejiang 312000, China
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16
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Gurnani P, Blakney AK, Terracciano R, Petch JE, Blok AJ, Bouton CR, McKay PF, Shattock RJ, Alexander C. The In Vitro, Ex Vivo, and In Vivo Effect of Polymer Hydrophobicity on Charge-Reversible Vectors for Self-Amplifying RNA. Biomacromolecules 2020; 21:3242-3253. [PMID: 32644777 DOI: 10.1021/acs.biomac.0c00698] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
RNA technology has the potential to revolutionize vaccination. However, the lack of clear structure-property relationships in relevant biological models mean there is no clear consensus on the chemical motifs necessary to improve RNA delivery. In this work, we describe the synthesis of a series of copolymers based on the self-hydrolyzing charge-reversible polycation poly(dimethylaminoethyl acrylate) (pDMAEA), varying the lipophilicity of the additional co-monomers. All copolymers formed stable polyplexes, showing efficient complexation with model nucleic acids from nitrogen/phosphate (N/P) ratios of N/P = 5, with more hydrophobic complexes exhibiting slower charge reversal and disassembly compared to hydrophilic analogues. The more hydrophobic copolymers outperformed hydrophilic versions, homopolymer controls and the reference standard polymer (polyethylenimine), in transfection assays on 2D cell monolayers, albeit with significantly higher toxicities. Similarly, hydrophobic derivatives displayed up to a 4-fold higher efficacy in terms of the numbers of cells expressing green fluorescent protein (GFP+) cells in ex vivo human skin (10%) compared to free RNA (2%), attributed to transfection enrichment in epithelial cells. In contrast, in a mouse model, we observed the reverse trend in terms of RNA transfection, with no observable protein production in more hydrophobic analogues, whereas hydrophilic copolymers induced the highest transfection in vivo. Overall, our results suggest an important relationship between the vector lipophilicity and RNA transfection in vaccine settings, with polymer biocompatibility potentially a key parameter in effective in vivo protein production.
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Affiliation(s)
- Pratik Gurnani
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kindom
| | - Anna K Blakney
- Department of Infectious Disease, Imperial College London, School of Medicine, St Mary's Hospital, Praed Street, London W2 1NY, United Kindom
| | - Roberto Terracciano
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kindom.,Drug Delivery Laboratory, Department of Pharmacy, University of Napoli Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
| | - Joshua E Petch
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kindom
| | - Andrew J Blok
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kindom
| | - Clément R Bouton
- Department of Infectious Disease, Imperial College London, School of Medicine, St Mary's Hospital, Praed Street, London W2 1NY, United Kindom
| | - Paul F McKay
- Department of Infectious Disease, Imperial College London, School of Medicine, St Mary's Hospital, Praed Street, London W2 1NY, United Kindom
| | - Robin J Shattock
- Department of Infectious Disease, Imperial College London, School of Medicine, St Mary's Hospital, Praed Street, London W2 1NY, United Kindom
| | - Cameron Alexander
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, United Kindom
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17
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Ros S, Wang J, Burke NAD, Stöver HDH. A Mechanistic Study of the Hydrolysis of Poly[N,N-(dimethylamino)ethyl acrylates] as Charge-Shifting Polycations. Macromolecules 2020. [DOI: 10.1021/acs.macromol.9b02272] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Samantha Ros
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4L8, Canada
| | - Jiexi Wang
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4L8, Canada
| | - Nicholas A. D. Burke
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4L8, Canada
| | - Harald D. H. Stöver
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, Ontario L8S 4L8, Canada
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18
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Koguchi R, Jankova K, Hayasaka Y, Kobayashi D, Amino Y, Miyajima T, Kobayashi S, Murakami D, Yamamoto K, Tanaka M. Understanding the Effect of Hydration on the Bio-inert Properties of 2-Hydroxyethyl Methacrylate Copolymers with Small Amounts of Amino- or/and Fluorine-Containing Monomers. ACS Biomater Sci Eng 2020; 6:2855-2866. [PMID: 33463271 DOI: 10.1021/acsbiomaterials.0c00230] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Materials exhibiting "bio-inert properties" are essential for developing medical devices because they are less recognized as foreign substances by proteins and cells in the living body. We have reported that the presence of intermediate water (IW) with the water molecules loosely bound to a polymer is a useful index of the bio-inertness of materials. Here, we analyzed the hydration state and the responses to biomolecules of poly(2-hydroxyethyl methacrylate) (PHEMA) copolymers including small amounts of 2-(dimethylamino)ethyl methacrylate (DMAEMA) (N-series) or/and 2,2,2-trifluoroethyl methacrylate (TFEMA) (F-series). The hydration structure was analyzed by differential scanning calorimetry (DSC), the molecular mobility of the produced copolymers by temperature derivative of DSC (DDSC), and the water mobility by solid 1H pulse nuclear magnetic resonance (NMR). Although the homopolymers did not show bio-inert properties, the binary and ternary PHEMA copolymers with low comonomer contents showed higher bio-inert properties than those of PHEMA homopolymers. The hydration state of PHEMA was changed by introducing a small amount of comonomers. The mobility of both water molecules and hydrated polymers was changed in the N-series nonfreezing water (NFW) with the water molecules tightly bound to a polymer and was shifted to high-mobility IW and free water (FW) with the water molecules scarcely bound to a polymer. On the other hand, in the F-series, FW turned to IW and NFW. Additionally, a synergetic effect was postulated when both comonomers coexist in the copolymers of HEMA, which was expressed by widening the temperature range of cold crystallization, contributing to further improvement of the bio-inert properties.
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Affiliation(s)
- Ryohei Koguchi
- Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,AGC Inc. Organic Materials Division, Materials Integration Laboratories, AGC Inc., 1150 Hazawa-cho, Kanagawa-ku, Yokohama, Kanagawa 221-8755, Japan
| | - Katja Jankova
- Soft Materials Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Build. CE41, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej, Build. 375, 2800 Kongens Lyngby, Denmark
| | - Yuki Hayasaka
- AGC Inc. Common Base Technology Division, Innovative Technology Laboratories, AGC Inc., 1150 Hazawa-cho, Kanagawa-ku, Yokohama, Kanagawa 221-8755, Japan
| | - Daisuke Kobayashi
- AGC Inc. Common Base Technology Division, Innovative Technology Laboratories, AGC Inc., 1150 Hazawa-cho, Kanagawa-ku, Yokohama, Kanagawa 221-8755, Japan
| | - Yosuke Amino
- AGC Inc. Common Base Technology Division, Innovative Technology Laboratories, AGC Inc., 1150 Hazawa-cho, Kanagawa-ku, Yokohama, Kanagawa 221-8755, Japan
| | - Tatsuya Miyajima
- AGC Inc. Common Base Technology Division, Innovative Technology Laboratories, AGC Inc., 1150 Hazawa-cho, Kanagawa-ku, Yokohama, Kanagawa 221-8755, Japan
| | - Shingo Kobayashi
- Soft Materials Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Build. CE41, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Daiki Murakami
- Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Soft Materials Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Build. CE41, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kyoko Yamamoto
- AGC Inc. Organic Materials Division, Materials Integration Laboratories, AGC Inc., 1150 Hazawa-cho, Kanagawa-ku, Yokohama, Kanagawa 221-8755, Japan
| | - Masaru Tanaka
- Graduate School of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Soft Materials Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Build. CE41, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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19
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Wang G, Zhu D, Zhou Z, Piao Y, Tang J, Shen Y. Glutathione-Specific and Intracellularly Labile Polymeric Nanocarrier for Efficient and Safe Cancer Gene Delivery. ACS APPLIED MATERIALS & INTERFACES 2020; 12:14825-14838. [PMID: 32166948 DOI: 10.1021/acsami.9b22394] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Cationic polymers condense nucleic acids into nanosized complexes (polyplexes) that are widely explored for nonviral gene delivery, but their strong electrostatic binding with DNA causes inefficient intracellular gene release and translation and thereby unsatisfactory gene transfection efficiencies. Facilitated intracellular dissociation of polyplexes by making the polymer undergo positive-to-negative/neutral charge reversal can effectively solve these problems, but they must be sufficiently stable during the delivery. Herein, we report the first glutathione (GSH)-specific intracellular labile polyplexes for cancer-targeted gene delivery. The polymers are made from p-(2,4-dinitrophenyloxybenzyl)-ammonium cationic moieties, whose p-2,4-dinitrophenyl ether is cleaved specifically by GSH, rather than other biological thiols, triggering the conversion of the ammonium cation into the carboxylate anion and thus the fast intracellular DNA release of the polyplexes. Furthermore, the polyplexes coated with PEG-functionalized lipids are stable in biological fluids to gain long blood circulation for tumor accumulation. Thus, the efficient tumor accumulation and cell transfection of the polyplexes loaded with the tumor suicide gene tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) give rise to potent antitumor activity similar to that of the first-line chemotherapy drug paclitaxel but with much less adverse effects.
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Affiliation(s)
- Guowei Wang
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Dingcheng Zhu
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhuxian Zhou
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ying Piao
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jianbin Tang
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
| | - Youqing Shen
- Center for Bionanoengineering and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China
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20
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Chen Y, Abdalkarim SYH, Yu HY, Li Y, Xu J, Marek J, Yao J, Tam KC. Double stimuli-responsive cellulose nanocrystals reinforced electrospun PHBV composites membrane for intelligent drug release. Int J Biol Macromol 2020; 155:330-339. [PMID: 32229207 DOI: 10.1016/j.ijbiomac.2020.03.216] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/15/2020] [Accepted: 03/22/2020] [Indexed: 01/09/2023]
Abstract
Double stimuli-responsive functionalized cellulose nanocrystal-poly[2-(dimethylamino)ethyl methacrylate] (CNC-g-PDMAEMA) reinforced poly(3-hydroxybutyrate-co-3-hydroxy valerate) (PHBV) electrospun composite membranes were explored as drug delivery vehicles using tetracycline hydrochloride (TH) as a model drug. It was found that rigid CNC-g-PDMAEMA nanoparticles enhanced thermal, crystallization and hydrophilic properties of PHBV. Moreover, great improvements in fiber diameter uniformity, crystallization ability and maximum decomposition temperature (Tmax) could be achieved at 6 wt% CNC-g-PDMAEMA. Furthermore, by introducing stimuli-responsive CNC-g-PDMAEMA nanofillers, intelligent and long-term sustained release behavior of composite membranes could be achieved. The releasing mechanism of composite membranes based on zero order, first order, Higuchi and Korsmeyere-Peppas mathematical models was clearly demonstrated, giving effective technical guidance for practical drug delivery systems.
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Affiliation(s)
- Yuxiang Chen
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Somia Yassin Hussain Abdalkarim
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China; Zhejiang Institute of Technology and Automatic Control, College of Mechanical and Automatic Control, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Hou-Yong Yu
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China; Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada.
| | - Yingzhan Li
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Jiaxin Xu
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada
| | - Jaromir Marek
- Institute for Nanomaterials, Advanced Technologies And Innovations, Studentska 1402/2, Liberec, Czech Republic
| | - Juming Yao
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Xiasha Higher Education Park Avenue 2 No.928, Hangzhou 310018, China
| | - Kam Chiu Tam
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada
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21
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Chaparro TDC, Silva RD, Monteiro IS, Barros-Timmons A, Giudici R, Martins Dos Santos A, Bourgeat-Lami E. Interaction of Cationic, Anionic, and Nonionic Macroraft Homo- and Copolymers with Laponite Clay. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11512-11523. [PMID: 31404489 DOI: 10.1021/acs.langmuir.9b01987] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The functionalization of Laponite RD platelets with different cationic, anionic, and nonionic homo- and copolymers synthesized by reversible addition-fragmentation chain transfer (RAFT) has been investigated. The effective interaction of the macromolecular RAFT agents (macroRAFTs) with the inorganic particles is known to be of crucial importance for the successful coating of minerals with polymers via RAFT-mediated emulsion polymerization to produce polymer-encapsulated inorganic particles. The macroRAFT agents synthesized in the present work contain carefully selected reinitiating R groups, which bear either ionizable tertiary amine or quaternary ammonium moieties (from 2-(dimethylamino)ethyl methacrylate, DMAEMA), negatively charged acrylic acid (AA) repeat units, or neutral polyethylene glycol (PEG) side chains, and are capable of interacting with Laponite via different adsorption mechanisms. The equilibrium adsorption of these RAFT (co)polymers was investigated by the plotting of adsorption isotherms, and either L-type or H-type curves were obtained. The hydrophobicity of the macroRAFT was shown to promote adsorption, as did the pending configuration of the PEG block. Charge repulsion between AA and the negatively charged surface of Laponite at pH 7.5, on the other hand, was prejudicial for adsorption, while the strong electrostatic interaction between the cationic DMAEMA molecules and the Laponite surface led to high-affinity-type curves.
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Affiliation(s)
- Thaíssa de Camargo Chaparro
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes (C2P2) , 43, Bvd du 11 Novembre 1918 , F-69616 Villeurbanne , France
- Engineering School of Lorena , University of São Paulo , 12.602-810 Lorena , SP , Brazil
| | - Rodrigo Duarte Silva
- Engineering School of Lorena , University of São Paulo , 12.602-810 Lorena , SP , Brazil
| | | | - A Barros-Timmons
- Department of Chemistry, CICECO , University of Aveiro , Campus Universitário de Santiago, 3810-193 Aveiro , Portugal
| | - Reinaldo Giudici
- Department of Chemical Engineering , Polytechnic School of the University of São Paulo , 05508-010 São Paulo , SP Brazil
| | | | - Elodie Bourgeat-Lami
- Univ Lyon, Université Claude Bernard Lyon 1, CPE Lyon, CNRS, UMR 5265, Chemistry, Catalysis, Polymers and Processes (C2P2) , 43, Bvd du 11 Novembre 1918 , F-69616 Villeurbanne , France
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22
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Li S, Yan X, Qu Y, Wang W, Chen B, Ma X, Liu S, Yu X. Hydrogen-Bond Cyclization Programming of Ultrasensitive Esters and Its Application in Gene Delivery. Chemistry 2019; 25:10375-10384. [PMID: 31090112 DOI: 10.1002/chem.201901173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Indexed: 01/07/2023]
Abstract
The ester bond as a universal linker has recently been applied in gene delivery systems owing to its efficient gene release by electrostatic repulsion after its cleavage. However, the ester bond is nonlabile and is difficult to cleave in cells. This work reports a method in which a secondary amine was introduced to the β-position of the ester bond to generate a hydrogen-bond cyclization (HBC) structure that can make the ester bond hydrolysis ultrafast. A series of molecules comprising ultrasensitive esters that can be activated by H2 O2 were synthesized, and it was found that those able to form an HBC structure showed complete ester hydrolysis within 5 h in both water and phosphate-buffered saline solution, which was several times faster than other methods reported. Then, a series of amphiphilic poly(amidoamine) dendrimers were constructed, comprising the ultrasensitive ester groups for gene delivery; it was found that they could effectively release genes under quite a low concentration of H2 O2 (<200 μm) and transport them into the nucleus within 2 h in Hela cells with high safety. Their gene transfection efficiencies were higher than that of PEI25k . The results demonstrated that the hydrogen-bond-induced ultrasensitive esters could be powerfully applied to construct gene delivery systems.
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Affiliation(s)
- Shengran Li
- Laboratory of Polymer Composites Engineering, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xinxin Yan
- Laboratory of Polymer Composites Engineering, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Yangchun Qu
- Department of Radiology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130033, China
| | - Wenliang Wang
- Laboratory of Polymer Composites Engineering, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Binggang Chen
- Laboratory of Polymer Composites Engineering, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Science and Technology of China, Hefei, Anhui, 230026, China
| | - Xiaojing Ma
- Laboratory of Polymer Composites Engineering, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Sanrong Liu
- Laboratory of Polymer Composites Engineering, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China
| | - Xifei Yu
- Laboratory of Polymer Composites Engineering, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.,University of Science and Technology of China, Hefei, Anhui, 230026, China
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23
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Electron beam irradiation of polyvinylidene fluoride/polyvinylpyrrolidone ultrafiltration membrane in presence of zwitterions molecules evaluation of filtration performances. Radiat Phys Chem Oxf Engl 1993 2019. [DOI: 10.1016/j.radphyschem.2019.02.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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24
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Le Bohec M, Bonchouo Kenzo K, Piogé S, Mura S, Nicolas J, Casse N, Forcher G, Fontaine L, Pascual S. Structure-pDNA complexation and structure–cytotoxicity relationships of PEGylated, cationic aminoethyl-based polyacrylates with tunable topologies. Polym Chem 2019. [DOI: 10.1039/c8py01776j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The influence of PEGylation and topology on cationic aminoethyl-based polyacrylates has been highlighted on cell viability and pDNA complexation.
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Affiliation(s)
- Maël Le Bohec
- Institut des Molécules et Matériaux du Mans
- UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans Cedex
- France
| | - Kévin Bonchouo Kenzo
- Institut des Molécules et Matériaux du Mans
- UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans Cedex
- France
| | - Sandie Piogé
- Institut des Molécules et Matériaux du Mans
- UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans Cedex
- France
| | - Simona Mura
- Institut Galien Paris-Sud
- UMR 8612 CNRS
- Faculté de Pharmacie
- Université Paris-Sud
- 92296 Châtenay-Malabry Cedex
| | - Julien Nicolas
- Institut Galien Paris-Sud
- UMR 8612 CNRS
- Faculté de Pharmacie
- Université Paris-Sud
- 92296 Châtenay-Malabry Cedex
| | - Nathalie Casse
- Mer
- Molécules et Santé
- EA 2160 – Le Mans Université
- 72085 Le Mans Cedex
- France
| | - Gwénaël Forcher
- Institut des Molécules et Matériaux du Mans
- UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans Cedex
- France
| | - Laurent Fontaine
- Institut des Molécules et Matériaux du Mans
- UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans Cedex
- France
| | - Sagrario Pascual
- Institut des Molécules et Matériaux du Mans
- UMR 6283 CNRS – Le Mans Université
- 72085 Le Mans Cedex
- France
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25
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Wendler F, Tom JC, Schacher FH. Synthesis and self-assembly of photoacid-containing block copolymers based on 1-naphthol. Polym Chem 2019. [DOI: 10.1039/c9py01131e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoacids experience a strong increase in acidity when absorbing light and, hence, can be considered as molecular switches. The incorporation into amphiphilic block copolymers leads to novel stimuli-responsive materials with great potential.
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Affiliation(s)
- Felix Wendler
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University
- Jena
- 07743 Jena
- Germany
| | - Jessica C. Tom
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University
- Jena
- 07743 Jena
- Germany
| | - Felix H. Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC)
- Friedrich Schiller University
- Jena
- 07743 Jena
- Germany
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26
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Abouelmagd SA, Ellah NHA, Hamid BNAE. Temperature and pH dual-stimuli responsive polymeric carriers for drug delivery. STIMULI RESPONSIVE POLYMERIC NANOCARRIERS FOR DRUG DELIVERY APPLICATIONS 2019:87-109. [DOI: 10.1016/b978-0-08-101995-5.00003-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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27
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Xiang J, Liu X, Zhou Z, Zhu D, Zhou Q, Piao Y, Jiang L, Tang J, Liu X, Shen Y. Reactive Oxygen Species (ROS)-Responsive Charge-Switchable Nanocarriers for Gene Therapy of Metastatic Cancer. ACS APPLIED MATERIALS & INTERFACES 2018; 10:43352-43362. [PMID: 30465424 DOI: 10.1021/acsami.8b13291] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The application of nonviral gene vectors has been limited by their insufficient transfection efficiency because of poor serum stability, high endosomal entrapment, limited intracellular release, and low accumulation in the targeted organelle. It is still challenging to design gene carriers with properties that can overcome all of the barriers. We previously developed a reactive oxygen species (ROS)-responsive cationic polymer, poly[(2-acryloyl)ethyl( p-boronic acid benzyl) diethylammonium bromide] (B-PDEAEA), which switches the charge at high concentrations of intracellular ROS to promote intracellular DNA release. However, its gene-delivery efficiency has been limited by serum instability and lysosomal trapping, and coating with an anionic PEGylated lipid only showed mild enhancement. Herein, we coated the ROS-responsive B-PDEAEA polymer with two cationic lipids to form ROS-responsive lipopolyplexes with integrated properties to overcome multiple delivery barriers. The surface cationic lipids endowed the nanocarrier with improved serum stability, effective cellular uptake, and lysosomal evasion. The interior B-PDEAEA/DNA polyplexes, which were highly stable in the extracellular environment, but quickly dissociated, released DNA, promoted nuclei localization, and achieved efficient transcription. The mechanisms of the ROS-responsive and charge-switchable properties of B-PDEAEA were quantitatively studied. The transfection efficiency and antitumor activity of lipopolyplexes were studied in vitro and in vivo. We found that the ROS-responsive lipopolyplexes effectively delivered therapeutic genes into cell nuclei and caused high tumor inhibition in mice bearing peritoneal or lung metastases.
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Affiliation(s)
| | - Xin Liu
- Center for Stem Cell and Tissue Engineering, School of Medicine , Zhejiang University , Hangzhou 310058 , China
- Zhejiang Xinyue Biotechnology Co. Ltd. , Hangzhou 311121 , China
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28
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Mendrek B, Fus A, Klarzyńska K, Sieroń AL, Smet M, Kowalczuk A, Dworak A. Synthesis, Characterization and Cytotoxicity of Novel Thermoresponsive Star Copolymers of N, N'-Dimethylaminoethyl Methacrylate and Hydroxyl-Bearing Oligo(Ethylene Glycol) Methacrylate. Polymers (Basel) 2018; 10:E1255. [PMID: 30961179 PMCID: PMC6401879 DOI: 10.3390/polym10111255] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/07/2018] [Accepted: 11/07/2018] [Indexed: 12/20/2022] Open
Abstract
Novel, nontoxic star copolymers of N,N-dimethylaminoethyl methacrylate (DMAEMA) and hydroxyl-bearing oligo(ethylene glycol) methacrylate (OEGMA-OH) were synthesized via atom transfer radical polymerization (ATRP) using hyperbranched poly(arylene oxindole) as the macroinitiator. Stars with molar masses from 100,000 g/mol to 257,000 g/mol and with various amounts of OEGMA-OH in the arms were prepared. As these polymers can find applications, e.g., as carriers of nucleic acids, drugs or antibacterial or antifouling agents, in this work, much attention has been devoted to exploring their solution behavior and their stimuli-responsive properties. The behavior of the stars was studied in aqueous solutions under various pH and temperature conditions, as well as in PBS buffer, in Dulbecco's modified Eagle's medium (DMEM) and in organic solvents for comparison. The results indicated that increasing the content of hydrophilic OEGMA-OH units in the arms up to 10 mol% increased the cloud point temperature. For the stars with an OEGMA-OH content of 10 mol%, the thermo- and pH-responsivity was switched off. Since cytotoxicity experiments have shown that the obtained stars are less toxic than homopolymer DMAEMA stars, the presented studies confirmed that the prepared polymers are great candidates for the design of various nanosystems for biomedical applications.
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Affiliation(s)
- Barbara Mendrek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland.
| | - Agnieszka Fus
- Department of Molecular Biology and Genetics, Medical University of Silesia, Medykow 18, 40-752 Katowice, Poland.
| | - Katarzyna Klarzyńska
- Department of Molecular Biology and Genetics, Medical University of Silesia, Medykow 18, 40-752 Katowice, Poland.
| | - Aleksander L Sieroń
- Department of Molecular Biology and Genetics, Medical University of Silesia, Medykow 18, 40-752 Katowice, Poland.
| | - Mario Smet
- Department of Chemistry, University of Leuven, Celestijnenlaan, 200F, B-3001 Leuven (Heverlee), Belgium.
| | - Agnieszka Kowalczuk
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland.
| | - Andrzej Dworak
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, 41-819 Zabrze, Poland.
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29
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Whitfield R, Anastasaki A, Truong NP, Cook AB, Omedes-Pujol M, Loczenski Rose V, Nguyen TAH, Burns JA, Perrier S, Davis TP, Haddleton DM. Efficient Binding, Protection, and Self-Release of dsRNA in Soil by Linear and Star Cationic Polymers. ACS Macro Lett 2018; 7:909-915. [PMID: 35650964 DOI: 10.1021/acsmacrolett.8b00420] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Double stranded RNA (dsRNA) exhibits severe degradation within 3 days in live soil, limiting its potential application in crop protection. Herein we report the efficient binding, protection, and self-release of dsRNA in live soil through the usage of a cationic polymer. Soil stability assays show that linear poly(2-(dimethylamino)ethyl acrylate) can delay the degradation of dsRNA by up to 1 week while the star shaped analogue showed an increased stabilization of dsRNA by up to 3 weeks. Thus, the architecture of the polymer can significantly affect the lifetime of dsRNA in soil. In addition, the hydrolysis and dsRNA binding and release profiles of these polymers were carefully evaluated and discussed. Importantly, hydrolysis could occur independently of environmental conditions (e.g., different pH, different temperature) showing the potential for many opportunities in agrochemicals where protection and subsequent self-release of dsRNA in live soil is required.
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Affiliation(s)
- Richard Whitfield
- Chemistry Department, University of Warwick, Library Road, CV4 7AL, Coventry, U.K
| | - Athina Anastasaki
- Chemistry Department, University of Warwick, Library Road, CV4 7AL, Coventry, U.K
| | - Nghia P. Truong
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - Alexander B. Cook
- Chemistry Department, University of Warwick, Library Road, CV4 7AL, Coventry, U.K
| | - Marta Omedes-Pujol
- Formulation Technology Group, Syngenta, Jealotts Hill international Research Centre, Bracknell, Berkshire RG42 6EY, U.K
| | - Vanessa Loczenski Rose
- Formulation Technology Group, Syngenta, Jealotts Hill international Research Centre, Bracknell, Berkshire RG42 6EY, U.K
| | - Tuan A. H. Nguyen
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia
| | - James A. Burns
- Formulation Technology Group, Syngenta, Jealotts Hill international Research Centre, Bracknell, Berkshire RG42 6EY, U.K
| | - Sébastien Perrier
- Chemistry Department, University of Warwick, Library Road, CV4 7AL, Coventry, U.K
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
- Warwick Medical School, University of Warwick, Coventry CV4 7AL, U.K
| | - Thomas P. Davis
- Chemistry Department, University of Warwick, Library Road, CV4 7AL, Coventry, U.K
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - David M. Haddleton
- Chemistry Department, University of Warwick, Library Road, CV4 7AL, Coventry, U.K
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), 399 Royal Parade, Parkville, Victoria 3152, Australia
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30
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Ros S, Kleinberger RM, Burke NAD, Rossi NAA, Stöver HDH. Charge-Shifting Polycations with Tunable Rates of Hydrolysis: Effect of Backbone Substituents on Poly[2-(dimethylamino)ethyl acrylates]. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00931] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Samantha Ros
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada
| | - Rachelle M. Kleinberger
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada
| | - Nicholas A. D. Burke
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada
| | | | - Harald D. H. Stöver
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON L8S 4M1, Canada
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31
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Rabyk M, Destephen A, Lapp A, King S, Noirez L, Billon L, Hruby M, Borisov O, Stepanek P, Deniau E. Interplay of Thermosensitivity and pH Sensitivity of Amphiphilic Block–Gradient Copolymers of Dimethylaminoethyl Acrylate and Styrene. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00621] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Mariia Rabyk
- Institute of Macromolecular
Chemistry AS CR, Heyrovského nám. 2, CZ-162 06 Prague, Czech Republic
| | - Aurélie Destephen
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux IPREM, CNRS - UMR 5254, Université de Pau & Pays de l’Adour, 64053 Pau, France
| | - Alain Lapp
- Leon Brillouin Laboratory (CEA-CNRS), Université Paris-Saclay, Cedex 91191, Gif sur Yvette, France
| | - Stephen King
- Science and Technology Facilities Council, Rutherford Appleton Laboratory, Harwell Campus, OX11 0QX Didcot, United Kingdom
| | - Laurence Noirez
- Leon Brillouin Laboratory (CEA-CNRS), Université Paris-Saclay, Cedex 91191, Gif sur Yvette, France
| | - Laurent Billon
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux IPREM, CNRS - UMR 5254, Université de Pau & Pays de l’Adour, 64053 Pau, France
- Bio-inspired Materials Group: Functionality & Self-assembly, Université de Pau & Pays Adour, Pau 64053, France
| | - Martin Hruby
- Institute of Macromolecular
Chemistry AS CR, Heyrovského nám. 2, CZ-162 06 Prague, Czech Republic
| | - Oleg Borisov
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux IPREM, CNRS - UMR 5254, Université de Pau & Pays de l’Adour, 64053 Pau, France
| | - Petr Stepanek
- Institute of Macromolecular
Chemistry AS CR, Heyrovského nám. 2, CZ-162 06 Prague, Czech Republic
| | - Elise Deniau
- Institut des Sciences Analytiques et de Physico-Chimie pour l’Environnement et les Matériaux IPREM, CNRS - UMR 5254, Université de Pau & Pays de l’Adour, 64053 Pau, France
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32
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Zong W, Thingholm B, Itel F, Schattling PS, Brodszkij E, Mayer D, Stenger S, Goldie KN, Han X, Städler B. Phospholipid-Block Copolymer Hybrid Vesicles with Lysosomal Escape Ability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6874-6886. [PMID: 29776311 DOI: 10.1021/acs.langmuir.8b01073] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The success of nanoparticulate formulations in drug delivery depends on various aspects including their toxicity, internalization, and intracellular location. Vesicular assemblies consisting of phospholipids and amphiphilic block copolymers are an emerging platform, which combines the benefits from liposomes and polymersomes while overcoming their challenges. We report the synthesis of poly(cholesteryl methacrylate)- block-poly(2-(dimethylamino) ethyl methacrylate) (pCMA- b-pDMAEMA) block copolymers and their assembly with phospholipids into hybrid vesicles. Their geometry, their ζ-potential, and their ability to adsorb onto polymer-coated surfaces were assessed. Giant unilamellar vesicles were employed to confirm the presence of both the phospholipids and the block copolymer in the same membrane. Furthermore, the cytotoxicity of selected hybrid vesicles was determined in RAW 264.7 mouse macrophages, primary rat Kupffer cells, and human macrophages. The internalization and lysosomal escape ability of the hybrid vesicles were confirmed using RAW 264.7 mouse macrophages. Taken together, our findings illustrate that the reported hybrid vesicles are a promising complementary drug delivery platform for existing liposomes and polymersomes.
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Affiliation(s)
- Wei Zong
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , 92 West Da-Zhi Street , Harbin 150001 , China
- Interdisciplinary Nanoscience Center (iNANO) , Aarhus University , Gustav Wieds Vej 14 , 8000 Aarhus , Denmark
| | - Bo Thingholm
- Interdisciplinary Nanoscience Center (iNANO) , Aarhus University , Gustav Wieds Vej 14 , 8000 Aarhus , Denmark
| | - Fabian Itel
- Interdisciplinary Nanoscience Center (iNANO) , Aarhus University , Gustav Wieds Vej 14 , 8000 Aarhus , Denmark
| | - Philipp S Schattling
- Interdisciplinary Nanoscience Center (iNANO) , Aarhus University , Gustav Wieds Vej 14 , 8000 Aarhus , Denmark
| | - Edit Brodszkij
- Interdisciplinary Nanoscience Center (iNANO) , Aarhus University , Gustav Wieds Vej 14 , 8000 Aarhus , Denmark
| | - Daniel Mayer
- Institute for Medical Microbiology and Infection Control , University Hospital Ulm , 89021 Ulm , Germany
| | - Steffen Stenger
- Institute for Medical Microbiology and Infection Control , University Hospital Ulm , 89021 Ulm , Germany
| | - Kenneth N Goldie
- Center for Cellular Imaging & Nano Analytics, Biozentrum , University of Basel , 4056 Basel , Switzerland
| | - Xiaojun Han
- State Key Laboratory of Urban Water Resource and Environment, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , 92 West Da-Zhi Street , Harbin 150001 , China
| | - Brigitte Städler
- Interdisciplinary Nanoscience Center (iNANO) , Aarhus University , Gustav Wieds Vej 14 , 8000 Aarhus , Denmark
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33
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Schönemann E, Laschewsky A, Rosenhahn A. Exploring the Long-Term Hydrolytic Behavior of Zwitterionic Polymethacrylates and Polymethacrylamides. Polymers (Basel) 2018; 10:E639. [PMID: 30966673 PMCID: PMC6403559 DOI: 10.3390/polym10060639] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2018] [Revised: 06/04/2018] [Accepted: 06/06/2018] [Indexed: 12/16/2022] Open
Abstract
The hydrolytic stability of polymers to be used for coatings in aqueous environments, for example, to confer anti-fouling properties, is crucial. However, long-term exposure studies on such polymers are virtually missing. In this context, we synthesized a set of nine polymers that are typically used for low-fouling coatings, comprising the well-established poly(oligoethylene glycol methylether methacrylate), poly(3-(N-2-methacryloylethyl-N,N-dimethyl) ammoniopropanesulfonate) ("sulfobetaine methacrylate"), and poly(3-(N-3-methacryamidopropyl-N,N-dimethyl)ammoniopropanesulfonate) ("sulfobetaine methacrylamide") as well as a series of hitherto rarely studied polysulfabetaines, which had been suggested to be particularly hydrolysis-stable. Hydrolysis resistance upon extended storage in aqueous solution is followed by ¹H NMR at ambient temperature in various pH regimes. Whereas the monomers suffered slow (in PBS) to very fast hydrolysis (in 1 M NaOH), the polymers, including the polymethacrylates, proved to be highly stable. No degradation of the carboxyl ester or amide was observed after one year in PBS, 1 M HCl, or in sodium carbonate buffer of pH 10. This demonstrates their basic suitability for anti-fouling applications. Poly(sulfobetaine methacrylamide) proved even to be stable for one year in 1 M NaOH without any signs of degradation. The stability is ascribed to a steric shielding effect. The hemisulfate group in the polysulfabetaines, however, was found to be partially labile.
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Affiliation(s)
- Eric Schönemann
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany.
| | - André Laschewsky
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Str. 24-25, D-14476 Potsdam-Golm, Germany.
- Fraunhofer Institute of Applied Polymer Research IAP, Geiselberg-Str. 69, D-14476 Potsdam-Golm, Germany.
| | - Axel Rosenhahn
- Institute of Analytical Chemistry-Biogrenzflächen, Ruhr-Universität Bochum, Universitätsstr. 150, D-44801 Bochum, Germany.
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34
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Mielańczyk A, Kupczak M, Burek M, Mielańczyk Ł, Klymenko O, Wandzik I, Neugebauer D. Functional (mikto)stars and star-comb copolymers from d-gluconolactone derivative: An efficient route for tuning the architecture and responsiveness to stimuli. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.05.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Mella M, La Rocca MV, Miele Y, Izzo L. On the origin and consequences of high DMAEMA reactivity ratio in ATRP copolymerization with MMA: An experimental and theoretical study#. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Massimo Mella
- Dipartimento di Scienza ed Alta Tecnologia; Università degli Studi dell'Insubria, via Valleggio 9; Como 22100 Italy
| | - Mario Vincenzo La Rocca
- Dipartimento di Scienza ed Alta Tecnologia; Università degli Studi dell'Insubria, via Valleggio 9; Como 22100 Italy
| | - Ylenia Miele
- Dipartimento di Chimica e Biologia; Università degli Studi di Salerno, Via Giovanni Paolo II, 132; 84084 Fisciano Italy
| | - Lorella Izzo
- Dipartimento di Chimica e Biologia; Università degli Studi di Salerno, Via Giovanni Paolo II, 132; 84084 Fisciano Italy
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36
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Cook AB, Peltier R, Hartlieb M, Whitfield R, Moriceau G, Burns JA, Haddleton DM, Perrier S. Cationic and hydrolysable branched polymers by RAFT for complexation and controlled release of dsRNA. Polym Chem 2018. [DOI: 10.1039/c8py00804c] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The complexation and sustained release of dsRNA from highly branched polymers prepared via RAFT polymerisation and copolymerisation of the monomers DMAEA, DMAPA, and DMAEMA, is reported.
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Affiliation(s)
| | - Raoul Peltier
- Department of Chemistry
- University of Warwick
- Coventry
- UK
| | | | | | | | - James A. Burns
- Syngenta
- Jealott's Hill International Research Centre
- Berkshire
- UK
| | - David M. Haddleton
- Department of Chemistry
- University of Warwick
- Coventry
- UK
- Faculty of Pharmacy and Pharmaceutical Sciences
| | - Sébastien Perrier
- Department of Chemistry
- University of Warwick
- Coventry
- UK
- Faculty of Pharmacy and Pharmaceutical Sciences
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37
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Jing X, Huang Z, Lu H, Wang B. Use of a hydrophobic associative four-armed star anionic polymer to create a saline aqueous solution of CO 2-switchability. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2016.1277358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Xianwu Jing
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
| | - Zhiyu Huang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
- Engineering Research Center of Oilfield Chemistry, Ministry of Education, Chengdu 610500, P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, P. R. China
| | - Hongsheng Lu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
- Engineering Research Center of Oilfield Chemistry, Ministry of Education, Chengdu 610500, P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, P. R. China
| | - Baogang Wang
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, P. R. China
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38
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Sekido T, Kappl M, Butt HJ, Yusa S, Nakamura Y, Fujii S. Effects of pH on the structure and mechanical properties of dried pH-responsive latex particles. SOFT MATTER 2017; 13:7562-7570. [PMID: 28972614 DOI: 10.1039/c7sm01625e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Micrometer-sized monodisperse polystyrene (PS) particles carrying a pH-responsive poly[2-(diethylamino)ethyl methacrylate] (PDEA) colloidal stabilizer were synthesized via free radical dispersion polymerization. X-ray photoelectron spectroscopy and electrophoretic measurements verified that PDEA covered the PS particle surface. At pH 3.0 and 6.3, where the PDEA is protonated and cationically charged, the PDEA-PS particles were well dispersed in aqueous media thanks to the water soluble PDEA stabilizer and slowly sedimented due to gravity and enriched at the bottom of the glass vials. At pH 10.0, where the PDEA is non-protonated and neutral, the PDEA-PS particles weakly aggregated due to non-hydrated and collapsed PDEA. These PDEA-PS particles and aggregates sedimented to the bottom. The sediment height observed at pH 10.0 was higher than those observed at pH 3.0 and 6.3 in both wet and dry systems, which indicated that a larger porosity was formed at pH 10.0. Mechanical testing experiments confirmed that the fracture toughness of the dried materials decreased with an increase of pH. The fracture toughness was found to be correlated with the degree of particle ordering in the dried particulate materials: more ordered, dense packings lead to a higher fracture toughness compared to amorphous, less dense packings. Thus, we could tune fracture toughness and degree of particle ordering by controlling the pH.
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Affiliation(s)
- T Sekido
- Division of Applied Chemistry, Graduate School of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku, Osaka, 535-8585, Japan
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39
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Pegg JC, Czajka A, Hill C, James C, Peach J, Rogers SE, Eastoe J. Alternative Route to Nanoscale Aggregates with a pH-Responsive Random Copolymer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:2628-2638. [PMID: 28219244 DOI: 10.1021/acs.langmuir.6b04559] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A random copolymer, poly(methyl methacrylate-co-2-dimethylaminoethyl methacrylate) (poly(MMA-co-DMAEMA)) is shown to form nanoscale aggregates (NAs) (∼20 nm) at copolymer concentrations ≥10% w/w, directly from the preformed surfactant-stabilized latex (∼120 nm) in aqueous solution. The copolymer is prepared by conventional emulsion polymerization. Introducing a small mole fraction of DMAEMA (∼10%) allows the copolymer hydrophilicity to be adjusted by the pH and external temperature, generating NAs with tuneable sizes and a defined weight-average aggregation number, as observed by dynamic light scattering (DLS) and small-angle neutron scattering (SANS). These NAs are different from the so-called mesoglobular systems and are insensitive to temperature at fixed pH. The relatively broad chemical composition distribution of the copolymer and lumpy (or blocky but not diblock) incorporation of DMAEMA mean that the NAs cannot be simply thought of as conventional polymer micelles. In the acidic pH regime, the amphiphilic copolymer exhibits a defined critical assembly concentration (CAC) and a minimum air-water surface tension of 45.2 mN m-1. This copolymer represents a convenient route to self-assembled NAs, which form directly in aqueous dispersions after pH and temperature triggers, rather than the typically applied (and time-consuming) water-induced micellization approach for common polymer micelles.
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Affiliation(s)
- Jonathan C Pegg
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| | - Adam Czajka
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| | - Christopher Hill
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| | - Craig James
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| | - Jocelyn Peach
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
| | - Sarah E Rogers
- ISIS-STFC, Rutherford Appleton Laboratory, Chilton, Oxon OX11 0QX, U.K
| | - Julian Eastoe
- School of Chemistry, University of Bristol , Cantock's Close, Bristol BS8 1TS, U.K
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40
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A direct comparison of linear and star-shaped poly(dimethylaminoethyl acrylate) polymers for polyplexation with DNA and cytotoxicity in cultured cell lines. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2016.08.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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41
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Ho HT, Bohec ML, Frémaux J, Piogé S, Casse N, Fontaine L, Pascual S. Tuning the Molar Composition of "Charge-Shifting" Cationic Copolymers Based on 2-(N,N-Dimethylamino)Ethyl Acrylate and 2-(tert-Boc-Amino)Ethyl Acrylate. Macromol Rapid Commun 2017; 38. [PMID: 28045212 DOI: 10.1002/marc.201600641] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Revised: 11/14/2016] [Indexed: 12/15/2022]
Abstract
Copolymers of 2-(N,N-dimethylamino)ethyl acrylate (DMAEA) and 2-(tert-Boc-amino)ethyl acrylate (tBocAEA) are synthesized by reversible addition-fragmentation chain transfer polymerization in a controlled manner with defined molar masses and narrow molar masses distributions (Ð ≤ 1.17). Molar compositions of the P(DMAEA-co-tBocAEA) copolymers are assessed by means of 1 H NMR. A complete screening in molar composition is studied from 0% of DMAEA to 100% of DMAEA. Reactivity ratios of both comonomers are determined by the extended Kelen-Tüdos method (r DMAEA = 0.81 and rtBocAEA = 0.99).
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Affiliation(s)
- Hien The Ho
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS - Université du Maine, Avenue Olivier Messiaen, 72085, Le Mans Cedex, France
| | - Maël Le Bohec
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS - Université du Maine, Avenue Olivier Messiaen, 72085, Le Mans Cedex, France
| | - Julien Frémaux
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS - Université du Maine, Avenue Olivier Messiaen, 72085, Le Mans Cedex, France
| | - Sandie Piogé
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS - Université du Maine, Avenue Olivier Messiaen, 72085, Le Mans Cedex, France
| | - Nathalie Casse
- Mer, Molécules et Santé, EA 2160 - Université du Maine, Avenue Olivier Messiaen, 72085, Le Mans Cedex, France
| | - Laurent Fontaine
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS - Université du Maine, Avenue Olivier Messiaen, 72085, Le Mans Cedex, France
| | - Sagrario Pascual
- Institut des Molécules et Matériaux du Mans, UMR 6283 CNRS - Université du Maine, Avenue Olivier Messiaen, 72085, Le Mans Cedex, France
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42
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Abstract
Stimuli-responsive polymers respond to a variety of external stimuli, which include optical, electrical, thermal, mechanical, redox, pH, chemical, environmental and biological signals. This paper is concerned with the process of forming such polymers by RAFT polymerization.
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43
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Bodnarchuk MS, Doncom KEB, Wright DB, Heyes DM, Dini D, O'Reilly RK. Polyelectrolyte pKa from experiment and molecular dynamics simulation. RSC Adv 2017. [DOI: 10.1039/c6ra27785c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The pKa of a polyelectrolyte has been determined experimentally by potentiometric titration and computed using Molecular Dynamics (MD) constant pH (CpH) methodology, which allows the pKa of each titratable site along the polymer backbone.
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Affiliation(s)
| | | | | | - David M. Heyes
- Department of Mechanical Engineering
- Imperial College
- London SW7 2AZ
- UK
| | - Daniele Dini
- Department of Mechanical Engineering
- Imperial College
- London SW7 2AZ
- UK
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44
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Rolph MS, Pitto-Barry A, O'Reilly RK. The hydrolytic behavior of N,N′-(dimethylamino)ethyl acrylate-functionalized polymeric stars. Polym Chem 2017. [DOI: 10.1039/c7py00219j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Well-definedN,N′-(dimethylamino)ethyl acrylate (DMAEA) functionalized polymeric stars have been synthesizedviaan arm-first approach.
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45
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Lauber L, Santarelli J, Boyron O, Chassenieux C, Colombani O, Nicolai T. pH- and Thermoresponsive Self-Assembly of Cationic Triblock Copolymers with Controlled Dynamics. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02201] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Lionel Lauber
- IMMM-UMR
CNRS 6283, Equipe Polymères, Colloïdes et Interfaces, Université du Maine, av. O. Messiaen, 72085 Le Mans, Cedex 9, France
| | - Julien Santarelli
- IMMM-UMR
CNRS 6283, Equipe Polymères, Colloïdes et Interfaces, Université du Maine, av. O. Messiaen, 72085 Le Mans, Cedex 9, France
| | - Olivier Boyron
- C2P2
UMR5265 CNRS, LCPP Group, ESCPE Lyon, Université de Lyon, Bat 308, 43
Bd du 11 novembre 1918, 69616 Villeurbanne, France
| | - Christophe Chassenieux
- IMMM-UMR
CNRS 6283, Equipe Polymères, Colloïdes et Interfaces, Université du Maine, av. O. Messiaen, 72085 Le Mans, Cedex 9, France
| | - Olivier Colombani
- IMMM-UMR
CNRS 6283, Equipe Polymères, Colloïdes et Interfaces, Université du Maine, av. O. Messiaen, 72085 Le Mans, Cedex 9, France
| | - Taco Nicolai
- IMMM-UMR
CNRS 6283, Equipe Polymères, Colloïdes et Interfaces, Université du Maine, av. O. Messiaen, 72085 Le Mans, Cedex 9, France
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46
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Rezaee Shirin-Abadi A, Darabi A, Jessop PG, Cunningham MF. Tuning the aggregation and redispersion behavior of CO2-switchable latexes by a combination of DMAEMA and PDMAEMA-b-PMMA as stabilizing moieties. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.067] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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47
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Whitfield R, Anastasaki A, Truong NP, Wilson P, Kempe K, Burns JA, Davis TP, Haddleton DM. Well-Defined PDMAEA Stars via Cu(0)-Mediated Reversible Deactivation Radical Polymerization. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01511] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Richard Whitfield
- Chemistry Department, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
| | - Athina Anastasaki
- Chemistry Department, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - Nghia P. Truong
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - Paul Wilson
- Chemistry Department, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - Kristian Kempe
- Chemistry Department, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - James A. Burns
- Formulation Technology Group, Jealotts Hill international Research
Centre, Syngenta, Bracknell, Berkshire RG42 6EY, United Kingdom
| | - Thomas P. Davis
- Chemistry Department, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 399 Royal Parade, Parkville, Victoria 3152, Australia
| | - David M. Haddleton
- Chemistry Department, University of Warwick, Library Road, CV4 7AL Coventry, United Kingdom
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology,
Monash Institute of Pharmaceutical Sciences, Monash University, Parkville Campus, 399 Royal Parade, Parkville, Victoria 3152, Australia
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48
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Mees M, Haladjova E, Momekova D, Momekov G, Shestakova PS, Tsvetanov CB, Hoogenboom R, Rangelov S. Partially Hydrolyzed Poly(n-propyl-2-oxazoline): Synthesis, Aqueous Solution Properties, and Preparation of Gene Delivery Systems. Biomacromolecules 2016; 17:3580-3590. [DOI: 10.1021/acs.biomac.6b01088] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maarten Mees
- Supramolecular
Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | | | - Denitsa Momekova
- Faculty
of Pharmacy, Medical University of Sofia, 2 Dunav str., Sofia 1000, Bulgaria
| | - Georgi Momekov
- Faculty
of Pharmacy, Medical University of Sofia, 2 Dunav str., Sofia 1000, Bulgaria
| | | | | | - Richard Hoogenboom
- Supramolecular
Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Ghent, Belgium
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49
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Shirin-Abadi AR, Jessop PG, Cunningham MF. In Situ Use of Aqueous RAFT Prepared Poly(2-(diethylamino)ethyl methacrylate) as a Stabilizer for Preparation of CO2Switchable Latexes. MACROMOL REACT ENG 2016. [DOI: 10.1002/mren.201600035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Philip G. Jessop
- Department of Chemistry; Queen's University; Kingston Ontario K7L 3N6 Canada
| | - Michael F. Cunningham
- Department of Chemical Engineering; Queen's University; Kingston Ontario K7L 3N6 Canada
- Department of Chemistry; Queen's University; Kingston Ontario K7L 3N6 Canada
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50
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Jing X, Lu H, Wang B, Huang Z. CO2-switchable polymeric vesicle-network structure transition induced by a hairpin-line molecular configuration conversion. J Appl Polym Sci 2016. [DOI: 10.1002/app.44417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xianwu Jing
- College of Chemistry and Chemical Engineering; Southwest Petroleum University; Chengdu 610500 People's Republic of China
| | - Hongsheng Lu
- College of Chemistry and Chemical Engineering; Southwest Petroleum University; Chengdu 610500 People's Republic of China
- Engineering Research Center of Oilfield Chemistry Ministry of Education; Chengdu 610500 People's Republic of China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province; Chengdu 610500 People's Republic of China
| | - Baogang Wang
- College of Chemistry and Chemical Engineering; Southwest Petroleum University; Chengdu 610500 People's Republic of China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province; Chengdu 610500 People's Republic of China
| | - Zhiyu Huang
- College of Chemistry and Chemical Engineering; Southwest Petroleum University; Chengdu 610500 People's Republic of China
- Engineering Research Center of Oilfield Chemistry Ministry of Education; Chengdu 610500 People's Republic of China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province; Chengdu 610500 People's Republic of China
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