1
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Badhe Y, Kumar D, Gupta R, Jain V, Rai B. Coarse grained MD simulation of bulk and interfacial behavior of mixture of CTAB/SDS surfactants. J Mol Model 2024; 30:162. [PMID: 38720045 DOI: 10.1007/s00894-024-05952-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 04/19/2024] [Indexed: 06/07/2024]
Abstract
CONTEXT This study involves simulating the process of inhibiting corrosion through the formation of micelles by surfactants and their deposition on iron (Fe) surfaces. The primary focus is on examining CTAB/SDS mixtures in aqueous solutions with different concentrations. Micelle properties, including size, shape, aggregation number, cluster size, and surfactant diffusion, were calculated and validated with experimental data. The coarse-grained Fe surface was modeled and validated against experimental water contact-angle data. Subsequently, the deposition of CTAB/SDS mixtures on the Fe surface and air-water interface was studied systematically. We found that the relative ratio of CTAB/SDS in the solution directly influences surfactant deposition behavior, which might impact the corrosion inhibition efficiency. METHODS All the MD simulations were performed using the GROMACS software with MARTINI2 force field and Martini polar water. The molecules are packed using PACKMOL software. Both NVT and NPT simulations are caried out at temperature and pressure of 303 K and 1 bar respectively, with a nonbonded interaction cut-off (rcut) of 1.1 nm. The LJ potential was shifted from 0.9 nm to rcut, while the electrostatic potential was shifted from 0.0 nm to rcut. For electrostatics, reaction-field coulomb type is used, relative dielectric constant (epsilon-r) and the reaction field dielectric constant (epsilon-rf) are equal to 2.5 and infinity respectively. The dielectric constant below rcut is epsilon-r, and beyond the cut-off is epsilon-rf. Coulomb-modifier used as potential-shift which leads to shift in the coulomb potential by a constant such that it is zero at the rcut. This makes the potential of the integral of the force . The neighbor list was updated every 10 steps, employing a neighbor list cut-off equal to rcut. Using a polar water model, we used a constant time step of 0.02 ps throughout the simulation. The used epsilon-r = 2.5, is recommended for polar water.
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Affiliation(s)
- Yogesh Badhe
- Physical Science Research Area, TCS Research, Sahyadri Park 2, Phase 3, Hinjewadi Rajiv Gandhi Infotech Park, Hinjewadi, Pimpri-Chinchwad, Pune, Maharashtra, 411057, India
| | - Dharmendr Kumar
- Physical Science Research Area, TCS Research, Sahyadri Park 2, Phase 3, Hinjewadi Rajiv Gandhi Infotech Park, Hinjewadi, Pimpri-Chinchwad, Pune, Maharashtra, 411057, India
| | - Rakesh Gupta
- Physical Science Research Area, TCS Research, Sahyadri Park 2, Phase 3, Hinjewadi Rajiv Gandhi Infotech Park, Hinjewadi, Pimpri-Chinchwad, Pune, Maharashtra, 411057, India.
| | - Vinay Jain
- Physical Science Research Area, TCS Research, Sahyadri Park 2, Phase 3, Hinjewadi Rajiv Gandhi Infotech Park, Hinjewadi, Pimpri-Chinchwad, Pune, Maharashtra, 411057, India
| | - Beena Rai
- Physical Science Research Area, TCS Research, Sahyadri Park 2, Phase 3, Hinjewadi Rajiv Gandhi Infotech Park, Hinjewadi, Pimpri-Chinchwad, Pune, Maharashtra, 411057, India
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2
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Hurst PJ, Yoon J, Singh R, Abouchaleh MF, Stewart KA, Sumerlin BS, Patterson JP. Hybrid Photoiniferter and Ring-Opening Polymerization Yields One-Pot Anisotropic Nanorods. Macromol Rapid Commun 2024:e2400100. [PMID: 38520318 DOI: 10.1002/marc.202400100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/18/2024] [Indexed: 03/25/2024]
Abstract
Polymerization-induced self-assembly (PISA) has emerged as a scalable one-pot technique to prepare block copolymer (BCP) nanoparticles. Recently, a PISA process, that results in poly(l-lactide)-b-poly(ethylene glycol) BCP nanoparticles coined ring-opening polymerization (ROP)-induced crystallization-driven self-assembly (ROPI-CDSA), was developed. The resulting nanorods demonstrate a strong propensity for aggregation, resulting in the formation of 2D sheets and 3D networks. This article reports the synthesis of poly(N,N-dimethyl acrylamide)-b-poly(l)-lactide BCP nanoparticles by ROPI-CDSA, utilizing a two-step, one-pot approach. A dual-functionalized photoiniferter is first used for controlled radical polymerization of the acrylamido-based monomer, and the resulting polymer serves as a macroinitiator for organocatalyzed ROP to form the solvophobic polyester block. The resulting nanorods are highly stable and display anisotropy at higher molecular weights (>12k Da) and concentrations (>20% solids) than the previous report. This development expands the chemical scope of ROPI-CDSA BCPs and provides readily accessible nanorods made with biocompatible materials.
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Affiliation(s)
- Paul Joshua Hurst
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697, USA
| | - Junsik Yoon
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697, USA
| | - Riya Singh
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697, USA
| | | | - Kevin A Stewart
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Brent S Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of Chemistry, University of Florida, Gainesville, FL, 32611, USA
| | - Joseph P Patterson
- Department of Chemistry, University of California, Irvine, Irvine, CA, 92697, USA
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, CA, 92697, USA
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3
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Heil C, Ma Y, Bharti B, Jayaraman A. Computational Reverse-Engineering Analysis for Scattering Experiments for Form Factor and Structure Factor Determination (" P( q) and S( q) CREASE"). JACS AU 2023; 3:889-904. [PMID: 37006757 PMCID: PMC10052275 DOI: 10.1021/jacsau.2c00697] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/09/2023] [Accepted: 02/10/2023] [Indexed: 05/11/2023]
Abstract
In this paper, we present an open-source machine learning (ML)-accelerated computational method to analyze small-angle scattering profiles [I(q) vs q] from concentrated macromolecular solutions to simultaneously obtain the form factor P(q) (e.g., dimensions of a micelle) and the structure factor S(q) (e.g., spatial arrangement of the micelles) without relying on analytical models. This method builds on our recent work on Computational Reverse-Engineering Analysis for Scattering Experiments (CREASE) that has either been applied to obtain P(q) from dilute macromolecular solutions (where S(q) ∼1) or to obtain S(q) from concentrated particle solutions when P(q) is known (e.g., sphere form factor). This paper's newly developed CREASE that calculates P(q) and S(q), termed as "P(q) and S(q) CREASE", is validated by taking as input I(q) vs q from in silico structures of known polydisperse core(A)-shell(B) micelles in solutions at varying concentrations and micelle-micelle aggregation. We demonstrate how "P(q) and S(q) CREASE" performs if given two or three of the relevant scattering profiles-I total(q), I A(q), and I B(q)-as inputs; this demonstration is meant to guide experimentalists who may choose to do small-angle X-ray scattering (for total scattering from the micelles) and/or small-angle neutron scattering with appropriate contrast matching to get scattering solely from one or the other component (A or B). After validation of "P(q) and S(q) CREASE" on in silico structures, we present our results analyzing small-angle neutron scattering profiles from a solution of core-shell type surfactant-coated nanoparticles with varying extents of aggregation.
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Affiliation(s)
- Christian
M. Heil
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy St., Newark, Delaware 19716, United States
| | - Yingzhen Ma
- Cain
Department of Chemical Engineering, Louisiana
State University, 3307 Patrick F. Taylor Hall, Baton Rouge, Louisiana 70803, United States
| | - Bhuvnesh Bharti
- Cain
Department of Chemical Engineering, Louisiana
State University, 3307 Patrick F. Taylor Hall, Baton Rouge, Louisiana 70803, United States
| | - Arthi Jayaraman
- Department
of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy St., Newark, Delaware 19716, United States
- Department
of Materials Science and Engineering, University
of Delaware, 201 DuPont
Hall, Newark, Delaware 19716, United States
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4
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Ji J, Hossain MS, Krueger EN, Zhang Z, Nangia S, Carpentier B, Martel M, Nangia S, Mozhdehi D. Lipidation Alters the Structure and Hydration of Myristoylated Intrinsically Disordered Proteins. Biomacromolecules 2023; 24:1244-1257. [PMID: 36757021 PMCID: PMC10017028 DOI: 10.1021/acs.biomac.2c01309] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/25/2023] [Indexed: 02/10/2023]
Abstract
Lipidated proteins are an emerging class of hybrid biomaterials that can integrate the functional capabilities of proteins into precisely engineered nano-biomaterials with potential applications in biotechnology, nanoscience, and biomedical engineering. For instance, fatty-acid-modified elastin-like polypeptides (FAMEs) combine the hierarchical assembly of lipids with the thermoresponsive character of elastin-like polypeptides (ELPs) to form nanocarriers with emergent temperature-dependent structural (shape or size) characteristics. Here, we report the biophysical underpinnings of thermoresponsive behavior of FAMEs using computational nanoscopy, spectroscopy, scattering, and microscopy. This integrated approach revealed that temperature and molecular syntax alter the structure, contact, and hydration of lipid, lipidation site, and protein, aligning with the changes in the nanomorphology of FAMEs. These findings enable a better understanding of the biophysical consequence of lipidation in biology and the rational design of the biomaterials and therapeutics that rival the exquisite hierarchy and capabilities of biological systems.
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Affiliation(s)
- Jingjing Ji
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
| | - Md Shahadat Hossain
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Emily N. Krueger
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Zhe Zhang
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Shivangi Nangia
- Department
of Chemistry, University of Hartford, West Hartford, Connecticut 06117, United States
| | - Britnie Carpentier
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
| | - Mae Martel
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
| | - Shikha Nangia
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
- BioInspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
| | - Davoud Mozhdehi
- Department
of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, United States
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
- BioInspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
- Department
of Biology, Syracuse University, Syracuse, New York 13244, United States
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5
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Mirzamani M, Dawn A, Garvey CJ, He L, Koerner H, Kumari H. Structural insights into self-assembly of a slow-evolving and mechanically robust supramolecular gel via time-resolved small-angle neutron scattering. Phys Chem Chem Phys 2022; 25:131-141. [PMID: 36475500 DOI: 10.1039/d2cp01826h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The supramolecular assembly process is a widespread phenomenon found in both synthetically engineered and naturally occurring systems, such as colloids, liquid crystals and micelles. However, a basic understanding of the evolution of self-assembly processes over time remains elusive, primarily owing to the fast kinetics involved in these processes and the complex nature of the various non-covalent interactions operating simultaneously. With the help of a slow-evolving supramolecular gel derived from a urea-based gelator, we aim to capture the different stages of the self-assembly process commencing from nucleation. In particular, we are able to study the self-assembly in real time using time-resolved small-angle neutron scattering (SANS) at length scales ranging from approximately 30 Å to 250 Å. Systems with and without sonication are compared simultaneously, to follow the different kinetic paths involved in these two cases. Time-dependent NMR, morphological and rheological studies act complementarily to the SANS data at sub-micron and bulk length scales. A hollow columnar formation comprising of gelator monomers arranged radially along the long axis of the fiber and solvent in the core is detected at the very early stage of the self-assembly process. While sonication promotes uniform growth of fibers and fiber entanglement, the absence of such a stimulus helps extensive bundle formation at a later stage and at the microscopic domain, making the gel system mechanically robust. The results of the present work provide a thorough understanding of the self-assembly process and reveal a path for fine-tuning such growth processes for applications such as the cosmetics industry, 3D printing ink development and paint industry.
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Affiliation(s)
- Marzieh Mirzamani
- James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267-0004, USA.
| | - Arnab Dawn
- James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267-0004, USA.
| | - Christopher J Garvey
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstraße 1, Garching 85748, Germany
| | - Lilin He
- Neutron Scattering Division, Oak Ridge National Laboratory, 1 Bethel Valley Rd., Oak Ridge, TN 37831, USA
| | - Hilmar Koerner
- Materials & Manufacturing Directorate, Air Force Research Laboratory, WPAFB, Ohio 45433, USA
| | - Harshita Kumari
- James L. Winkle College of Pharmacy, University of Cincinnati, 231 Albert Sabin Way, Cincinnati, OH 45267-0004, USA.
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6
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Ye Z, Wu Z, Jayaraman A. Computational Reverse Engineering Analysis for Scattering Experiments (CREASE) on Vesicles Assembled from Amphiphilic Macromolecular Solutions. JACS AU 2021; 1:1925-1936. [PMID: 34841410 PMCID: PMC8611670 DOI: 10.1021/jacsau.1c00305] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Indexed: 05/25/2023]
Abstract
In this paper we present the development and validation of the "Computational Reverse-Engineering Analysis for Scattering Experiments" (CREASE) method for analyzing scattering results from vesicle structures that are commonly found upon assembly of synthetic, biomimetic, or bioderived amphiphilic copolymers in solution. The two-step CREASE method takes the amphiphilic polymer chemistry and small-angle scattering intensity profile, I exp(q), as input and determines the vesicles' structural features on multiple length scales ranging from assembled vesicle wall's individual layer thicknesses to the monomer-level packing and distribution of polymer conformations. In the first step of CREASE, a genetic algorithm (GA) is used to determine the relevant vesicle dimensions from the input macromolecular solution information and I exp(q) by identifying the structure whose computed scattering profile best matches the input I exp(q). Then in the second step, the GA-determined dimensions are used for molecular reconstruction of the vesicle structure. To validate CREASE for vesicles, we test CREASE on input scattering intensity profiles generated mathematically (termed as in silico I exp(q) vs q) from a variety of vesicle sizes with known dimensions. We also test CREASE on in silico I exp(q) vs q generated from vesicles with dispersity in all relevant dimensions, resembling real experiments. After successful validation of CREASE, we compare the CREASE-determined dimensions against those obtained from the traditional approach of fitting the scattering intensity profile to relevant analytical model in SASVIEW package. We show that CREASE performs better than or as well as the core-multishell analytical model's fitting in SASVIEW in determining vesicle dimensions with dispersity. We also show that CREASE provides structural information beyond those possible from traditional scattering analysis using the core-multishell model, such as the distribution of solvophilic monomers between the vesicle wall's inner and outer layers in the vesicle wall and the chain-level packing within each vesicle layer.
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Affiliation(s)
- Ziyu Ye
- Colburn
Laboratory, Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
| | - Zijie Wu
- Colburn
Laboratory, Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
| | - Arthi Jayaraman
- Colburn
Laboratory, Department of Chemical and Biomolecular Engineering, University of Delaware, 150 Academy Street, Newark, Delaware 19716, United States
- Department
of Materials Science and Engineering, University
of Delaware, Newark, Delaware 19716, United States
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7
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Parent LR, Gnanasekaran K, Korpanty J, Gianneschi NC. 100th Anniversary of Macromolecular Science Viewpoint: Polymeric Materials by In Situ Liquid-Phase Transmission Electron Microscopy. ACS Macro Lett 2021; 10:14-38. [PMID: 35548998 DOI: 10.1021/acsmacrolett.0c00595] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A century ago, Hermann Staudinger proposed the macromolecular theory of polymers, and now, as we enter the second century of polymer science, we face a different set of opportunities and challenges for the development of functional soft matter. Indeed, many fundamental questions remain open, relating to physical structures and mechanisms of phase transformations at the molecular and nanoscale. In this Viewpoint, we describe efforts to develop a dynamic, in situ microscopy tool suited to the study of polymeric materials at the nanoscale that allows for direct observation of discrete structures and processes in solution, as a complement to light, neutron, and X-ray scattering methods. Liquid-phase transmission electron microscopy (LPTEM) is a nascent in situ imaging technique for characterizing and examining solvated nanomaterials in real time. Though still under development, LPTEM has been shown to be capable of several modes of imaging: (1) imaging static solvated materials analogous to cryo-TEM, (2) videography of nanomaterials in motion, (3) observing solutions or nanomaterials undergoing physical and chemical transformations, including synthesis, assembly, and phase transitions, and (4) observing electron beam-induced chemical-materials processes. Herein, we describe opportunities and limitations of LPTEM for polymer science. We review the basic experimental platform of LPTEM and describe the origin of electron beam effects that go hand in hand with the imaging process. These electron beam effects cause perturbation and damage to the sample and solvent that can manifest as artefacts in images and videos. We describe sample-specific experimental guidelines and outline approaches to mitigate, characterize, and quantify beam damaging effects. Altogether, we seek to provide an overview of this nascent field in the context of its potential to contribute to the advancement of polymer science.
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Affiliation(s)
- Lucas R. Parent
- Innovation Partnership Building, The University of Connecticut, Storrs, Connecticut 06269, United States
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8
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Ahmad HMN, Dutta G, Csoros J, Si B, Yang R, Halpern JM, Seitz WR, Song E. Stimuli-Responsive Templated Polymer as a Target Receptor for a Conformation-based Electrochemical Sensing Platform. ACS APPLIED POLYMER MATERIALS 2021; 3:329-341. [PMID: 33748761 PMCID: PMC7971449 DOI: 10.1021/acsapm.0c01120] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The use of highly crosslinked molecularly imprinted polymers as a synthetic target receptor has the limitations of restricted accessibility to the binding sites resulting in slow response time. Moreover, such artificial receptors often require additional transduction mechanisms to translate target binding events into measurable signals. Here, we propose the development of a single-chain stimuli-responsive templated polymer, without using any covalent interchain crosslinkers, as a target recognition element. The synthesized polymer chain exhibits preferential binding with the target molecule with which the polymer is templated. Moreover, upon specific target recognition, the polymer undergoes conformation change induced by its particular stimuli responsiveness, namely the target binding event. Such templated single-chain polymers can be attached to the electrode surface to implement a label-free electrochemical sensing platform. A target analyte, 4-nitrophenol (4-NP), was used as a template to synthesize a poly-N-isopropylacrylamide (PNIPAM)-based copolymer chain which was anchored to the electrode to be used as a selective receptor for 4-NP. The electrode surface chemistry analysis and the electrochemical impedance study reveal that the polymer concentration, the interchain interactions, and the Hofmeister effect play a major role in influencing the rate of polymer grafting as well as the morphology of the polymers grafted to the electrode. We also show that the specific binding between 4-NP and the copolymer results in a substantial change in the charge transfer kinetics at the electrode signifying the polymer conformation change.
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Affiliation(s)
- Habib M. N. Ahmad
- Department of Electrical and Computer Engineering, University of New Hampshire, Durham, NH 03824, United States
| | - Gaurab Dutta
- Department of Electrical and Computer Engineering, University of New Hampshire, Durham, NH 03824, United States
| | - John Csoros
- Department of Chemistry, University of New Hampshire, Durham, NH 03824, United States
| | - Bo Si
- Department of Chemistry, University of New Hampshire, Durham, NH 03824, United States
| | - Rongfang Yang
- Department of Chemistry, University of New Hampshire, Durham, NH 03824, United States
| | - Jeffrey M. Halpern
- Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824, United States
| | - W. Rudolf Seitz
- Department of Chemistry, University of New Hampshire, Durham, NH 03824, United States
| | - Edward Song
- Department of Electrical and Computer Engineering, University of New Hampshire, Durham, NH 03824, United States
- Materials Science Program, University of New Hampshire, Durham, NH 03824, United States
- Corresponding Author: Edward Song, . Phone: +1-603-862-5498
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9
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Ko CH, Henschel C, Meledam GP, Schroer MA, Müller-Buschbaum P, Laschewsky A, Papadakis CM. Self-Assembled Micelles from Thermoresponsive Poly(methyl methacrylate)-b-poly(N-isopropylacrylamide) Diblock Copolymers in Aqueous Solution. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02189] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Chia-Hsin Ko
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
| | - Cristiane Henschel
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
| | - Geethu P. Meledam
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
| | - Martin A. Schroer
- European Molecular Biology Laboratory, Hamburg Outstation, c/o Deutsches Elektronen-Synchrotron, Notkestr. 85, 22607 Hamburg, Germany
| | - Peter Müller-Buschbaum
- Physik-Department, Lehrstuhl für Funktionelle Materialien, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
- Heinz Maier-Leibnitz Zentrum (MLZ), Technische Universität München, Lichtenbergstr. 1, 85748 Garching, Germany
| | - André Laschewsky
- Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam-Golm, Germany
- Fraunhofer-Institut für Angewandte Polymerforschung, Geiselbergstraße 69, 14476 Potsdam-Golm, Germany
| | - Christine M. Papadakis
- Physik-Department, Fachgebiet Physik weicher Materie, Technische Universität München, James-Franck-Straße 1, 85748 Garching, Germany
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10
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Moreno A, Jiménez-Alesanco A, Ronda JC, Cádiz V, Galià M, Percec V, Abian O, Lligadas G. Dual Biochemically Breakable Drug Carriers from Programmed Telechelic Homopolymers. Biomacromolecules 2020; 21:4313-4325. [PMID: 32897693 DOI: 10.1021/acs.biomac.0c01113] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Well-defined hydrophilic telechelic dibromo poly(triethylene glycol monomethyl ether acrylate)s were prepared by single-electron transfer living radical polymerization employing a hydrophobic difunctional initiator containing acetal and disulfide linkages. Although the resulting homopolymers have low hydrophobic contents (<8.5 wt % of the entire structure), they are able to self-assemble in water into nanoscale micellelike particles via chain folding. Acetal and disulfide linkages were demonstrated to be "keystone" units for their dual stimuli-responsive behavior under biochemically relevant conditions. Their site-selective middle-chain cleavage under both acidic pH and reductive conditions splits the homopolymer into two equal-sized fragments and results in the breakdown of the nanoassemblies. The drug loading/delivery potential of these nanoparticles was investigated using curcumine combining in vitro drug release, cytotoxicity, and cellular uptake studies with human cancer cell lines (HT-29 and HeLa). Importantly, this strategy may be extended to prepare innovative nanoplatforms based on hydrophilic homopolymers or random copolymers for intelligent drug delivery.
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Affiliation(s)
- Adrian Moreno
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Ana Jiménez-Alesanco
- Institute of Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, Universidad de Zaragoza, Zaragoza 50018, Spain
| | - Juan C Ronda
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Virginia Cádiz
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Marina Galià
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Olga Abian
- Institute of Biocomputation and Physics of Complex Systems (BIFI), Joint Units IQFR-CSIC-BIFI, and GBsC-CSIC-BIFI, Universidad de Zaragoza, Zaragoza 50018, Spain.,Instituto Aragonés de Ciencias de la Salud (IACS), Zaragoza 50018, Spain.,Instituto de Investigación Sanitaria de Aragón (IIS Aragon), Zaragoza 50009 Spain.,Centro de Investigación Biomédica en Red en el Área Temática de Enfermedades Hepáticas Digestivas (CIBERehd), Madrid 28029, Spain.,Departamento de Bioquímica y Biología Molecular y Celular, Universidad de Zaragoza, Zaragoza 50013, Spain
| | - Gerard Lligadas
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain.,Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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11
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Moreno A, Ronda JC, Cádiz V, Galià M, Percec V, Lligadas G. Programming Self-Assembly and Stimuli-Triggered Response of Hydrophilic Telechelic Polymers with Sequence-Encoded Hydrophobic Initiators. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01400] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Adrian Moreno
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Juan C. Ronda
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Virginia Cádiz
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Marina Galià
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gerard Lligadas
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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12
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Wang S, Jin B, Chen G, Luo Y, Li X. Aggregation-induced emission from the crowded coronal chains of block copolymer micelles. Polym Chem 2020. [DOI: 10.1039/d0py00432d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Aggregation-induced emission (AIE) was triggered via the spatial confinement in the coronal chains in block copolymers upon micellization, even with very low content of AIE groups attached, and this could be used to monitor the self-assembly process.
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Affiliation(s)
- Siyu Wang
- School of Materials Science and Engineering
- Beijing
- China
| | - Bixin Jin
- School of Materials Science and Engineering
- Beijing
- China
| | - Gangfeng Chen
- School of Materials Science and Engineering
- Beijing
- China
| | - Yunjun Luo
- School of Materials Science and Engineering
- Beijing
- China
- Key Laboratory of High Energy Density Materials
- Ministry of Education
| | - Xiaoyu Li
- School of Materials Science and Engineering
- Beijing
- China
- Key Laboratory of High Energy Density Materials
- Ministry of Education
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13
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Moreno A, Ronda JC, Cádiz V, Galià M, Lligadas G, Percec V. pH-Responsive Micellar Nanoassemblies from Water-Soluble Telechelic Homopolymers Endcoding Acid-Labile Middle-Chain Groups in Their Hydrophobic Sequence-Defined Initiator Residue. ACS Macro Lett 2019; 8:1200-1208. [PMID: 35619448 DOI: 10.1021/acsmacrolett.9b00572] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A middle-chain cleavable telechelic poly(oligoethylene glycol) methyl ether acrylate) (MCCT-POEGA-Br) was synthesized by single-electron transfer living radical polymerization (SET-LRP) initiated from an acetal-containing hydrophobic sequence-defined difunctional initiator. In aqueous medium, above a certain concentration, this hydrophilic homopolymer self-assembled into nanogel-like large micelles that exhibit an encapsulating capacity for both hydrophobic and hydrophilic cargo. The sequence-defined cleavage pattern encoded in the initiator residue allowed precise middle-chain cleavage, leading to quantitative disassembly of the corresponding nanoobjects. Dye release studies performed in an acidic environment demonstrated the potential of this new design concept in the preparation of pH-responsive nanocarriers. In addition, fluorescently tagged nanoassemblies could also be obtained via the thio-bromo "click" modification of MCCT-POEGA-Br prior to self-assembly. This strategy may provide facile access to a diversity of multistimuli-responsive nanocarriers based on commercially available hydrophilic monomers and sequence-defined difunctional initiators synthesized by this simple design strategy.
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Affiliation(s)
- Adrian Moreno
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Juan C. Ronda
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Virginia Cádiz
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Marina Galià
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
| | - Gerard Lligadas
- Laboratory of Sustainable Polymers, Department of Analytical Chemistry and Organic Chemistry, University Rovira i Virgili, Tarragona 43007, Spain
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Virgil Percec
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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14
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Alford A, Kozlovskaya V, Kharlampieva E. Small Angle Scattering for Pharmaceutical Applications: From Drugs to Drug Delivery Systems. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1009:239-262. [PMID: 29218564 DOI: 10.1007/978-981-10-6038-0_15] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The sub-nanometer scale provided by small angle neutron and X-ray scattering is of special importance to pharmaceutical and biomedical investigators. As drug delivery devices become more functionalized and continue decreasing in size, the ability to elucidate details on size scales smaller than those available from optical techniques becomes extremely pertinent. Information gathered from small angle scattering therefore aids the endeavor of optimizing pharmaceutical efficacy at its most fundamental level. This chapter will provide some relevant examples of drug carrier technology and how small angle scattering (SAS) can be used to solve their mysteries. An emphasis on common first-step data treatments is provided which should help clarify the contents of scattering data to new researchers. Specific examples of pharmaceutically relevant research on novel systems and the role SAS plays in these studies will be discussed. This chapter provides an overview of the current applications of SAS in drug research and some practical considerations for selecting scattering techniques.
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Affiliation(s)
- Aaron Alford
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, CHEM 272, Birmingham, AL, 35294, USA
| | - Veronika Kozlovskaya
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, CHEM 272, Birmingham, AL, 35294, USA
| | - Eugenia Kharlampieva
- Department of Chemistry, University of Alabama at Birmingham, 901 14th Street South, CHEM 272, Birmingham, AL, 35294, USA.
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15
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Chain terminal group leads to distinct thermoresponsive behaviors of linear PNIPAM and polymer analogs. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.04.068] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Cryo-EM Visualization of Lipid and Polymer-Stabilized Perfluorocarbon Gas Nanobubbles - A Step Towards Nanobubble Mediated Drug Delivery. Sci Rep 2017; 7:13517. [PMID: 29044154 PMCID: PMC5647366 DOI: 10.1038/s41598-017-13741-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 09/27/2017] [Indexed: 02/02/2023] Open
Abstract
Gas microbubbles stabilized with lipids, surfactants, proteins and/or polymers are widely used clinically as ultrasound contrast agents. Because of their large 1-10 µm size, applications of microbubbles are confined to the blood vessels. Accordingly, there is much interest in generating nanoscale echogenic bubbles (nanobubbles), which can enable new uses of ultrasound contrast agents in molecular imaging and drug delivery, particularly for cancer applications. While the interactions of microbubbles with ultrasound have been widely investigated, little is known about the activity of nanobubbles under ultrasound exposure. In this work, we demonstrate that cryo-electron microscopy (cryo-EM) can be used to image nanoscale lipid and polymer-stabilized perfluorocarbon gas bubbles before and after their destruction with high intensity ultrasound. In addition, cryo-EM can be used to observe electron-beam induced dissipation of nanobubble encapsulated perfluorocarbon gas.
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17
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Greco CT, Andrechak JC, Epps TH, Sullivan MO. Anionic Polymer and Quantum Dot Excipients to Facilitate siRNA Release and Self-Reporting of Disassembly in Stimuli-Responsive Nanocarrier Formulations. Biomacromolecules 2017; 18:1814-1824. [PMID: 28441861 PMCID: PMC5672795 DOI: 10.1021/acs.biomac.7b00265] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The incorporation of anionic excipients into polyplexes is a promising strategy for modulating siRNA binding versus release and integrating diagnostic capabilities; however, specific design criteria and structure-function relationships are needed to facilitate the development of nanocarrier-based theranostics. Herein, we incorporated poly(acrylic acid) (PAA) and quantum dot (QD) excipients into photolabile siRNA polyplexes to increase gene silencing efficiencies by up to 100% and enable self-reporting of nanocarrier disassembly. Our systematic approach identified the functional relationships between gene silencing and key parameters such as excipient loading fractions and molecular weights that facilitated the establishment of design rules for optimization of nanocarrier efficacy. For example, we found that PAA molecular weights ∼10-20× greater than that of the coencapsulated siRNA exhibited the most efficient release and silencing. Furthermore, siRNA release assays and RNAi modeling allowed us to generate a PAA "heat map" that predicted gene silencing a priori as a function of PAA molecular weight and loading fraction. QDs further promoted selective siRNA release and provided visual as well as Förster resonance energy transfer (FRET)-based monitoring of the dynamic changes in nanostructure in situ. Moreover, even with the addition of anionic components, our formulations exhibited substantially improved stability and shelf life relative to typical formulations, with complete stability after a week of storage and full activity in the presence of serum. Taken together, this study enabled synergistic improvements in siRNA release and diagnostic capabilities, along with the development of mechanistic insights that are critical for advancing the translation of nucleic acid theranostics into the clinic.
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Affiliation(s)
- Chad T Greco
- Department of Chemical and Biomolecular Engineering and §Department of Materials Science and Engineering, University of Delaware , Newark, Delaware 19716, United States
| | - Jason C Andrechak
- Department of Chemical and Biomolecular Engineering and §Department of Materials Science and Engineering, University of Delaware , Newark, Delaware 19716, United States
| | - Thomas H Epps
- Department of Chemical and Biomolecular Engineering and §Department of Materials Science and Engineering, University of Delaware , Newark, Delaware 19716, United States
| | - Millicent O Sullivan
- Department of Chemical and Biomolecular Engineering and §Department of Materials Science and Engineering, University of Delaware , Newark, Delaware 19716, United States
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18
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Lye DS, Cohen AE, Wong MZ, Weck M. End-Functionalized Palladium SCS Pincer Polymers via Controlled Radical Polymerizations. Macromol Rapid Commun 2017; 38. [PMID: 28544248 DOI: 10.1002/marc.201700174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 04/21/2017] [Indexed: 11/05/2022]
Abstract
A direct and facile route toward semitelechelic polymers, end-functionalized with palladated sulfur-carbon-sulfur pincer (PdII -pincer) complexes is reported that avoids any post-polymerization step. Key to our methodology is the combination of reversible addition-fragmentation chain-transfer (RAFT) polymerization with functionalized chain-transfer agents. This strategy yields Pd end-group-functionalized materials with monomodal molar mass dispersities (Đ) of 1.18-1.44. The RAFT polymerization is investigated using a PdII -pincer chain-transfer agent for three classes of monomers: styrene, tert-butyl acrylate, and N-isopropylacrylamide. The ensuing PdII -pincer end-functionalized polymers are analyzed using 1 H NMR spectroscopy, gel-permeation chromatography, and elemental analysis. The RAFT polymerization methodology provides a direct pathway for the fabrication of PdII -pincer functionalized polymers with complete end-group functionalization.
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Affiliation(s)
- Diane S Lye
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, NY, 10003, USA
| | - Aaron E Cohen
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, NY, 10003, USA
| | - Madeleine Z Wong
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, NY, 10003, USA
| | - Marcus Weck
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, NY, 10003, USA
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19
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Lye DS, Xia Y, Wong MZ, Wang Y, Nieh MP, Weck M. ABC Supramolecular Triblock Copolymer by ROMP and ATRP. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00169] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Diane S. Lye
- Molecular
Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Yan Xia
- Department
of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
- Polymer
Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
- Department
of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Madeleine Z. Wong
- Molecular
Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
| | - Yufeng Wang
- Department
of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
- Polymer
Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
- Department
of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Mu-Ping Nieh
- Department
of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
- Polymer
Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
- Department
of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Marcus Weck
- Molecular
Design Institute and Department of Chemistry, New York University, New York, New York 10003, United States
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20
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Lang X, Lenart WR, Sun JEP, Hammouda B, Hore MJA. Interaction and Conformation of Aqueous Poly(N-isopropylacrylamide) (PNIPAM) Star Polymers below the LCST. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00068] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Xiaolong Lang
- Department
of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - William R. Lenart
- Department
of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Jessie E. P. Sun
- Laurel School, One Lyman
Circle, Shaker
Heights, Ohio 44122, United States
| | - Boualem Hammouda
- NIST Center for
Neutron Research, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Michael J. A. Hore
- Department
of Macromolecular Science and Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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21
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Blackman LD, Gibson MI, O'Reilly RK. Probing the causes of thermal hysteresis using tunable Nagg micelles with linear and brush-like thermoresponsive coronas. Polym Chem 2017; 8:233-244. [PMID: 28496523 PMCID: PMC5361139 DOI: 10.1039/c6py01191h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 07/30/2016] [Indexed: 12/17/2022]
Abstract
Self-assembled thermoresponsive polymers in aqueous solution have great potential as smart, switchable materials for use in biomedical applications. In recent years, attention has turned to the reversibility of these polymers' thermal transitions, which has led to debate over what factors influence discrepancies in the transition temperature when heating the system compared to the temperature obtained when cooling the system, known as the thermal hysteresis. Herein, we synthesize micelles with tunable aggregation numbers (Nagg) whose cores contain poly(n-butyl acrylate-co-N,N-dimethylacrylamide) (p(nBA-co-DMA)) and four different thermoresponsive corona blocks, namely poly(N-isopropylacrylamide) (pNIPAM), poly(N,N-diethylacrylamide) (pDEAm), poly(diethylene glycol monomethyl ether methacrylate) (pDEGMA) and poly(oligo(ethylene glycol) monomethyl ether methacrylate) (pOEGMA). By studying their thermoresponsive behavior, we elucidate the effects of changing numerous important characteristics both in the thermoresponsive chain chemistry and architecture, and in the structure of their self-assemblies. Our findings demonstrate large deviations in the reversibility between the self-assemblies and the corresponding thermoresponsive homopolymers; specifically we find that micelles whose corona consist of polymers with a brush-like architecture (pDEGMA and pOEGMA) exhibit irreversible phase transitions at a critical chain density. These results lead to a deeper understanding of stimuli-responsive self-assemblies and demonstrate the potential of tunable Nagg micelles for uncovering structure-property relationships in responsive polymer systems.
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Affiliation(s)
- L D Blackman
- Dept. of Chemistry , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK .
| | - M I Gibson
- Dept. of Chemistry , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK .
- Warwick Medical School , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK .
| | - R K O'Reilly
- Dept. of Chemistry , University of Warwick , Gibbet Hill Road , Coventry , CV4 7AL , UK .
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22
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Etchenausia L, Rodrigues AM, Harrisson S, Deniau Lejeune E, Save M. RAFT Copolymerization of Vinyl Acetate and N-Vinylcaprolactam: Kinetics, Control, Copolymer Composition, and Thermoresponsive Self-Assembly. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01451] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Laura Etchenausia
- IPREM, Equipe de Physique et Chimie des Polymères, CNRS, University of Pau & Pays Adour, UMR 5254, 2 avenue du Président Angot, Pau, F-64053, France
| | - Aurélie Malho Rodrigues
- IPREM, Equipe de Physique et Chimie des Polymères, CNRS, University of Pau & Pays Adour, UMR 5254, 2 avenue du Président Angot, Pau, F-64053, France
| | - Simon Harrisson
- Laboratoire
des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118 route de Narbonne 31062 Toulouse Cedex 9, France
| | - Elise Deniau Lejeune
- IPREM, Equipe de Physique et Chimie des Polymères, CNRS, University of Pau & Pays Adour, UMR 5254, 2 avenue du Président Angot, Pau, F-64053, France
| | - Maud Save
- IPREM, Equipe de Physique et Chimie des Polymères, CNRS, University of Pau & Pays Adour, UMR 5254, 2 avenue du Président Angot, Pau, F-64053, France
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23
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Xue X, Yang J, Huang W, Yang H, Jiang B, Li F, Jiang Y. Dual thermo- and light-responsive nanorods from self-assembly of the 4-propoxyazobenzene-terminated poly(N-isopropylacrylamide) in aqueous solution. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.07.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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24
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Movassaghian S, Merkel OM, Torchilin VP. Applications of polymer micelles for imaging and drug delivery. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2015; 7:691-707. [PMID: 25683687 DOI: 10.1002/wnan.1332] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 11/16/2014] [Accepted: 11/21/2014] [Indexed: 01/01/2023]
Abstract
Polymeric micelles, self-assembling nano-constructs of amphiphilic copolymers, are widely considered as convenient nano-carriers for a variety of applications, such as diagnostic imaging, and drug and gene delivery. They have demonstrated a variety of favorable properties including biocompatibility, longevity, high stability in vitro and in vivo, capacity to effectively solubilize a variety of poorly soluble drugs, changing the release profile of the incorporated pharmaceutical agents, and the ability to accumulate in the target zone based on the enhanced permeability and retention effect. Moreover, additional functions can be imparted to the micelle-based delivery systems by engineering their surface for specific applications. Various targeting ligands can be attached for cell or intracellular accumulation at a site of interest. Also, the chelation or incorporation of imaging moieties into the micelle structure enables in vivo biodistribution studies. Moreover, pH-, thermo-, ultrasound-, enzyme- and light-sensitive block-copolymers allow for controlled micelle dissociation and triggered drug release in response to the pathological environment-specific stimuli and/or externally applied signals. The combination of these approaches can further improve specificity and efficacy of micelle-based drug delivery to promote the development of smart multifunctional micelles.
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Affiliation(s)
- Sara Movassaghian
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, USA.,Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, MI, USA
| | - Olivia M Merkel
- Department of Pharmaceutical Sciences, Eugene Applebaum College of Pharmacy and Health Sciences, Wayne State University, Detroit, MI, USA.,Molecular Therapeutics Program, Barbara Ann Karmanos Cancer Institute, Detroit, MI, USA
| | - Vladimir P Torchilin
- Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA, USA
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25
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Schulte B, Rahimi K, Keul H, Demco DE, Walther A, Möller M. Blending of reactive prepolymers to control the morphology and polarity of polyglycidol based microgels. SOFT MATTER 2015; 11:943-953. [PMID: 25515704 DOI: 10.1039/c4sm02116a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The compartmentalization of microgels is a challenging task for synthetic polymer chemistry. Although the complexation with low molecular weight compounds or the use of microfluidic techniques offer attractive possibilities for other length scales, it is difficult to implement compartments in the mesoscale range of 10-100 nm. Herein we show how simple blending of reactive prepolymers is suitable to design new microgel morphologies with tailored compartments. We use poly(EEGE)-block-poly(AGE) as crosslinkable, pro-hydrophilic prepolymer in blends with varying amounts of crosslinkable, yet hydrophobic poly(THF-stat-AllylEHO) or inert and hydrophobic polystyrene, and crosslink the allyl functional prepolymer(s) in a thiol-ene click-type reaction after miniemulsification. Our strategy shows how arrested versus free nanophase separation can be used to control easily the morphology and polarity of microgel particles.
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Affiliation(s)
- B Schulte
- DWI - Leibniz Institute for Interactive Materials and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, Forckenbeckstraße 50, D-52074 Aachen, Germany.
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26
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Barnhill SA, Bell NC, Patterson JP, Olds DP, Gianneschi NC. Phase Diagrams of Polynorbornene Amphiphilic Block Copolymers in Solution. Macromolecules 2015. [DOI: 10.1021/ma502163j] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sarah A. Barnhill
- Department
of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Nia C. Bell
- Department
of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Joseph P. Patterson
- Department
of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Daniel P. Olds
- Lujan
Center at Los Alamos Neutron Science Center, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Nathan C. Gianneschi
- Department
of Chemistry and Biochemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
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27
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Sun JS, Du WC, Pu XL, Zou ZZ, Zhu BB. Synthesis and evaluation of a novel hydrophobically associating polymer based on acrylamide for enhanced oil recovery. CHEMICAL PAPERS 2015. [DOI: 10.1515/chempap-2015-0185] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractA novel polymerizable hydrophobic monomer 1-(4-dodecyloxy-phenyl)-propenone (DPP) was synthesized by esterification, Frise rearrangement and Williamson etherification; then, the obtained DPP was copolymerized with 2-(acrylamido)-dodecanesulfonic acid (AMC
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28
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Nichifor M, Mocanu G, Stanciu MC. Micelle-like association of polysaccharides with hydrophobic end groups. Carbohydr Polym 2014; 110:209-18. [DOI: 10.1016/j.carbpol.2014.03.072] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 01/14/2014] [Accepted: 03/20/2014] [Indexed: 11/26/2022]
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29
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Catenacci L, Mandracchia D, Sorrenti M, Colombo L, Serra M, Tripodo G. In-Solution Structural Considerations by1H NMR and Solid-State Thermal Properties of Inulin-d-α-Tocopherol Succinate (INVITE) Micelles as Drug Delivery Systems for Hydrophobic Drugs. MACROMOL CHEM PHYS 2014. [DOI: 10.1002/macp.201400342] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Laura Catenacci
- Department of Drug Sciences; University of Pavia; Viale Taramelli 12 27100 Pavia Italy
| | - Delia Mandracchia
- Department of Pharmacy; University of Bari “Aldo Moro”; Via Orabona 4 70125 Bari Italy
| | - Milena Sorrenti
- Department of Drug Sciences; University of Pavia; Viale Taramelli 12 27100 Pavia Italy
| | - Lino Colombo
- Department of Drug Sciences; University of Pavia; Viale Taramelli 12 27100 Pavia Italy
| | - Massimo Serra
- Department of Drug Sciences; University of Pavia; Viale Taramelli 12 27100 Pavia Italy
| | - Giuseppe Tripodo
- Department of Drug Sciences; University of Pavia; Viale Taramelli 12 27100 Pavia Italy
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30
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Patterson JP, Robin MP, Chassenieux C, Colombani O, O'Reilly RK. The analysis of solution self-assembled polymeric nanomaterials. Chem Soc Rev 2014; 43:2412-25. [DOI: 10.1039/c3cs60454c] [Citation(s) in RCA: 134] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
This tutorial review provides a guide for the characterisation and analysis of soft nanomaterials based on polymeric self-assemblies using scattering and microscopic techniques.
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Affiliation(s)
| | | | - Christophe Chassenieux
- LUNAM Université
- Université du Maine
- IMMM UMR CNRS 6283
- PCI Department
- 72085 Le Mans Cedex 09, France
| | - Olivier Colombani
- LUNAM Université
- Université du Maine
- IMMM UMR CNRS 6283
- PCI Department
- 72085 Le Mans Cedex 09, France
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Mabire AB, Robin MP, Willcock H, Pitto-Barry A, Kirby N, O'Reilly RK. Dual effect of thiol addition on fluorescent polymeric micelles: ON-to-OFF emissive switch and morphology transition. Chem Commun (Camb) 2014; 50:11492-5. [DOI: 10.1039/c4cc04713c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Reaction with a thiol causes solution-state self-assembled block copolymer nanoparticles to undergo a simultaneous morphology transition from micelles to vesicles coupled to an ON-to-OFF switch in particle fluorescence.
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Affiliation(s)
- Anne B. Mabire
- Department of Chemistry
- University of Warwick
- Coventry, UK
| | | | - Helen Willcock
- Department of Chemistry
- University of Warwick
- Coventry, UK
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