1
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Liu X, Mokarizadeh AH, Narayanan A, Mane P, Pandit A, Tseng YM, Tsige M, Joy A. Multiphasic Coacervates Assembled by Hydrogen Bonding and Hydrophobic Interactions. J Am Chem Soc 2023; 145:23109-23120. [PMID: 37820374 DOI: 10.1021/jacs.3c06675] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Coacervation has emerged as a prevalent mechanism to compartmentalize biomolecules in living cells. Synthetic coacervates help in understanding the assembly process and mimic the functions of biological coacervates as simplified artificial systems. Though the molecular mechanism and mesoscopic properties of coacervates formed from charged coacervates have been well investigated, the details of the assembly and stabilization of nonionic coacervates remain largely unknown. Here, we describe a library of coacervate-forming polyesteramides and show that the water-tertiary amide bridging hydrogen bonds and hydrophobic interactions stabilize these nonionic, single-component coacervates. Analogous to intracellular biological coacervates, these coacervates exhibit "liquid-like" features with low viscosity and low interfacial energy, and form coacervates with as few as five repeating units. By controlling the temperature and engineering the molar ratio between hydrophobic interaction sites and bridging hydrogen bonding sites, we demonstrate the tuneability of the viscosity and interfacial tension of polyesteramide-based coacervates. Taking advantage of the differences in the mesoscopic properties of these nonionic coacervates, we engineered multiphasic coacervates with core-shell architectures similar to those of intracellular biological coacervates, such as nucleoli and stress granule-p-body complexes. The multiphasic structures produced from these synthetic nonionic polyesteramide coacervates may serve as a valuable tool for investigating physicochemical principles deployed by living cells to spatiotemporally control cargo partitioning, biochemical reaction rates, and interorganellar signal transport.
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Affiliation(s)
- Xinhao Liu
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Abdol Hadi Mokarizadeh
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Amal Narayanan
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Prathamesh Mane
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Avanti Pandit
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Yen-Ming Tseng
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Mesfin Tsige
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Abraham Joy
- School of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325, United States
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2
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Wang X, Zhang Z, Hadjichristidis N. Poly(amino ester)s as an emerging synthetic biodegradable polymer platform: Recent developments and future trends. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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3
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Li Z, Zhao D, Huang B, Shen Y, Li Z. Chemical Upcycling of Poly(3-hydroxybutyrate) (P3HB) toward Functional Poly(amine- alt-ester) via Tandem Degradation and Ring-Opening Polymerization. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zheng Li
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
| | - Dongfang Zhao
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
| | - Bingzheng Huang
- State Key Laboratory Base of Eco-Chemical Engineering; College of Chemical Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
| | - Yong Shen
- State Key Laboratory Base of Eco-Chemical Engineering; College of Chemical Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
| | - Zhibo Li
- Key Laboratory of Biobased Polymer Materials, Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
- State Key Laboratory Base of Eco-Chemical Engineering; College of Chemical Engineering, Qingdao University of Science and Technology, Shandong, Qingdao 266042, China
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4
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An Overview of Coacervates: The Special Disperse State of Amphiphilic and Polymeric Materials in Solution. COLLOIDS AND INTERFACES 2022. [DOI: 10.3390/colloids6030045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Individual amphiphiles, polymers, and colloidal dispersions influenced by temperature, pH, and environmental conditions or interactions between their oppositely charged pairs in solvent medium often produce solvent-rich and solvent-poor phases in the system. The solvent-poor denser phase found either on the top or the bottom of the system is called coacervate. Coacervates have immense applications in various technological fields. This review comprises a concise introduction, focusing on the types of coacervates, and the influence of different factors in their formation, structures, and stability. In addition, their physicochemical properties, thermodynamics of formation, and uses and multifarious applications are also concisely presented and discussed.
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5
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Bisbjerg G, Brown GW, Pham KS, Kock RA, Ramos W, Patierno JA, Bautista A, Zawalick NM, Vigil V, Padrnos JD, Mathers RT, Heying MD, Costanzo PJ. Exploring polymer solubility with thermally‐responsive Diels‐Alder monomers: Revisiting the monkey's fist. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Greg Bisbjerg
- Department of Chemistry and Biochemistry California Polytechnic State University San Luis Obispo California USA
| | - Ginger W. Brown
- Department of Chemistry and Biochemistry California Polytechnic State University San Luis Obispo California USA
| | - Kimberly S. Pham
- Department of Chemistry and Biochemistry California Polytechnic State University San Luis Obispo California USA
| | - Ryan A. Kock
- Department of Chemistry Boston University Boston Massachusetts USA
| | - William Ramos
- Department of Chemistry and Biochemistry California Polytechnic State University San Luis Obispo California USA
| | - Jordan A. Patierno
- Department of Chemistry and Biochemistry California Polytechnic State University San Luis Obispo California USA
| | | | - Natalie M. Zawalick
- Department of Chemistry University of California at Los Angeles Los Angeles California USA
| | - Viviana Vigil
- Department of Marine Science California State University Monterey Bay Marina California USA
| | - John D. Padrnos
- Department of Chemistry Penn State University New Kensington Pennsylvania USA
| | - Robert T. Mathers
- Department of Chemistry Penn State University New Kensington Pennsylvania USA
| | - Michael D. Heying
- Department of Chemistry and Biochemistry California Polytechnic State University San Luis Obispo California USA
| | - Philip J. Costanzo
- Department of Chemistry and Biochemistry California Polytechnic State University San Luis Obispo California USA
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6
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Matsumoto M, Asoh TA, Shoji T, Tsuboi Y. Formation of Single Double-Layered Coacervate of Poly( N,N-diethylacrylamide) in Water by a Laser Tweezer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:2874-2883. [PMID: 33616404 DOI: 10.1021/acs.langmuir.0c03009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We demonstrate liquid-liquid phase separation involving both coacervation and coil-to-globule phase transition of a thermoresponsive polymer. By focusing a near-infrared laser beam into an aqueous solution of poly(N-isopropylacrylamide) (PNIPAM), a single phase-separated polymer microdroplet can be formed and stably trapped at the focal point. Such droplet formation is induced by a local elevation in temperature (induced by a photothermal effect) and an optical force. The technique allows us to selectively analyze a single polymer droplet trapped at the focal point. In this study, we applied this technique to poly(N,N-diethylacrylamide) (PDEA) in water and generated a double-layered PDEA droplet. Such an inhomogeneous and complex microstructure has not been previously observed both in steady-state heating of a PDEA solution and in the PNIPAM system. Moreover, we used micro-Raman spectroscopy to clarify that PDEA underwent dehydration due to a coil-to-globule phase transition. Despite this, the polymer concentration (Cpoly) of the trapped PDEA droplet was very low and was around 30 wt %. Cpoly depended on the molecular weight of PDEA and the laser power that regulates the temperature elevation. These results strongly indicate that PDEA undergoes coacervation in addition to a coil-to-globule phase transition. This study will help provide us with a fundamental understanding of the phase separation mechanisms of thermoresponsive polymers.
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Affiliation(s)
- Mitsuhiro Matsumoto
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - Taka-Aki Asoh
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Tatsuya Shoji
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
- The Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA), Osaka City University, 3-3-138, Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - Yasuyuki Tsuboi
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
- The Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA), Osaka City University, 3-3-138, Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
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Wang Q, Xiao J, Su Y, Huang J, Li J, Qiu L, Zhan M, He X, Yuan W, Li Y. Fabrication of thermoresponsive magnetic micelles from amphiphilic poly(phenyl isocyanide) and Fe3O4 nanoparticles for controlled drug release and synergistic thermochemotherapy. Polym Chem 2021. [DOI: 10.1039/d1py00022e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The drug-loaded micelles self-assembled from co-poly(phenyl isocyanide), Fe3O4 and DOX demonstrated thermoresponsiveness and magnetic hyperthermia for synergistic thermochemotherapy.
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8
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Göppert NE, Dirauf M, Weber C, Schubert US. Block copolymers comprising degradable poly(2-ethyl-2-oxazoline) analogues via copper-free click chemistry. Polym Chem 2021. [DOI: 10.1039/d1py00853f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
We present the synthesis development of amphiphilic, degradable poly(2-ethyl-2-oxazoline) (PEtOx) analogue block copolymers in a modular fashion utilizing the strain-promoted azide–alkyne cycloaddition (SPAAC).
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Affiliation(s)
- Natalie E. Göppert
- 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
| | - Michael Dirauf
- 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
| | - Christine Weber
- 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
| | - 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
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9
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Göppert NE, Kleinsteuber M, Weber C, Schubert US. Degradable Poly(2-oxazoline) Analogues from Partially Oxidized Poly(ethylene imine). Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Natalie E. Göppert
- 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
| | - Maximilian Kleinsteuber
- 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
| | - Christine Weber
- 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
| | - 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
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10
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Rabiee Kenaree A, Sirianni QEA, Classen K, Gillies ER. Thermoresponsive Self-Immolative Polyglyoxylamides. Biomacromolecules 2020; 21:3817-3825. [DOI: 10.1021/acs.biomac.0c00899] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Amir Rabiee Kenaree
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151, Richmond Street, London N6A 5B7, Ontario, Canada
| | - Quinton E. A. Sirianni
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151, Richmond Street, London N6A 5B7, Ontario, Canada
| | - Kyle Classen
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151, Richmond Street, London N6A 5B7, Ontario, Canada
| | - Elizabeth R. Gillies
- Department of Chemistry and the Centre for Advanced Materials and Biomaterials Research, The University of Western Ontario, 1151, Richmond Street, London N6A 5B7, Ontario, Canada
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, 1151 Richmond Street, London N6A 5B9, Ontario, Canada
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11
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Narayanan A, Menefee JR, Liu Q, Dhinojwala A, Joy A. Lower Critical Solution Temperature-Driven Self-Coacervation of Nonionic Polyester Underwater Adhesives. ACS NANO 2020; 14:8359-8367. [PMID: 32538616 DOI: 10.1021/acsnano.0c02396] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To enable attachment to underwater surfaces, aquatic fauna such as mussels and sandcastle worms utilize the advantages of coacervation to deliver concentrated protein-rich adhesive cocktails in an aqueous environment onto underwater surfaces. Recently, a mussel adhesive protein Mfp-3s, was shown to exhibit a coacervation-based adhesion mechanism. Current synthetic strategies to mimic Mfp-3s often involve complexation of oppositely charged polymers. Such complex coacervates are more sensitive to changes in pH and salt, thereby limiting their utility to narrow ranges of pH and ionic strength. In this study, by taking advantage of the lower critical solution temperature-driven coacervation, we have created mussel foot protein-inspired, tropoelastin-like, bioabsorbable, nonionic, self-coacervating polyesters for the delivery of photo-cross-linkable adhesives underwater and to overcome the challenges of adhesion in wet or underwater environments. We describe the rationale for their design and the underwater adhesive properties of these nonionic adhesives. Compared to previously reported coacervate adhesives, these "charge-free" polyesters coacervate in wide ranges of pH (3-12) and ionic strength (0-1 M NaCl) and rapidly (<300 s) adhere to substrates submerged underwater. The study introduces smart materials that mimic the self-coacervation and environmental stability of Mfp-3s and demonstrate the potential for biological adhesive applications where high water content, salts, and pH changes can be expected.
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Affiliation(s)
- Amal Narayanan
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Joshua R Menefee
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Qianhui Liu
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Ali Dhinojwala
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Abraham Joy
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
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12
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Wen L, Zhang S, Xiao Y, He J, Zhu S, Zhang J, Wu Z, Lang M. Organocatalytic Ring-Opening Polymerization Toward Poly(γ-amide-ε-caprolactone)s with Tunable Lower Critical Solution Temperatures. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00253] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Lianlei Wen
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shaoze Zhang
- National Engineering Laboratory for Vacuum Metallurgy, Engineering Laboratory for Advanced Battery and Materials of Yunnan Province, Kunming University of Science and Technology, Kunming 650093, China
| | - Yan Xiao
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jin He
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shuang Zhu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jun Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zihan Wu
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Meidong Lang
- Shanghai Key Laboratory of Advanced Polymeric Materials, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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13
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Kundu M, Morris DL, Cruz MA, Miyoshi T, Leeper TC, Joy A. Elucidating the Molecular Interactions of Encapsulated Doxorubicin within a Nonionic, Thermoresponsive Polyester Coacervate. ACS APPLIED BIO MATERIALS 2020; 3:4626-4634. [DOI: 10.1021/acsabm.0c00507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mangaldeep Kundu
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Daniel L. Morris
- Department of Chemistry and Biochemistry, The University of Akron, Akron, Ohio 44325, United States
| | - Megan A. Cruz
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Toshikazu Miyoshi
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Thomas C. Leeper
- College of Science and Mathematics, Kennesaw State University, Kennesaw, Georgia 30144, United States
| | - Abraham Joy
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
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14
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Wang X, Hadjichristidis N. Organocatalytic Ring-Opening Polymerization of N-Acylated-1,4-oxazepan-7-ones Toward Well-Defined Poly(ester amide)s: Biodegradable Alternatives to Poly(2-oxazoline)s. ACS Macro Lett 2020; 9:464-470. [PMID: 35648503 DOI: 10.1021/acsmacrolett.0c00040] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report a series of poly(ester amide)s (PEAs) synthesized by organocatalytic ring-opening polymerization (ROP) of N-acylated-1,4-oxazepan-7-one (OxP) monomers, produced from N-acylated-4-piperidones using the Baeyer-Villiger oxidation reaction. The ROP of OxPs, conducted in CH2Cl2 at room temperature with benzyl alcohol as initiator and TBD/TU (1,5,7-triazabicyclo[4.4.0]dec-5-ene/thiourea) as a binary organocatalytic system, revealed a controlled/living character. The thermodynamics of the ROP highly depends on the N-acylated substituent of monomers, with the following reactivity order: OxPPh > OxPMe > OxPPr > OxPBn. Based on NMR results, it seems that our system follows the hydrogen bonding bifunctional activation mechanism. All intermediates and final products were characterized by NMR, MALDI-TOF MS, SEC, and DSC techniques. All poly(N-acylated-1,4-oxazepan-7-one) (POxP) polymers are amorphous with different glass transition temperatures (Tg), depending on the N-acylated substituent (Tg: -2.90 to 43.75 °C). Among the synthesized polymers, only POxPMe was water-soluble and it degraded much faster than polycaprolactone in an aqueous phosphate buffer saline solution (pH = 7.4). Therefore, poly(N-acylated-1,4-oxazepan-7-one)s are potential biodegradable alternatives to poly(2-oxazoline)s.
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Affiliation(s)
- Xin Wang
- Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division, KAUST Catalysis Center, Polymer Synthesis Laboratory, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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15
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Li X, Gong S, Yang L, Zhang F, Xie L, Luo Z, Xia X, Wang J. Study on the degradation behavior and mechanism of Poly(lactic acid) modification by ferric chloride. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.121991] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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16
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Mankoci S, Ewing J, Dalai P, Sahai N, Barton HA, Joy A. Bacterial Membrane Selective Antimicrobial Peptide-Mimetic Polyurethanes: Structure–Property Correlations and Mechanisms of Action. Biomacromolecules 2019; 20:4096-4106. [DOI: 10.1021/acs.biomac.9b00939] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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17
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18
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19
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Qian A, Liu K, Chen P, Yao Y, Yan J, Li W, Zhang X, Zhang A. OEGylated Cyclodextrin-Based Polyrotaxanes Showing Remarkable Thermoresponsive Behavior and Photocontrolled Degradation. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00267] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Apan Qian
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building
Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Kun Liu
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building
Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Peiyun Chen
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building
Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Yi Yao
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building
Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Jiatao Yan
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building
Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Wen Li
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building
Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Xiacong Zhang
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building
Room 447, Nanchen Street 333, Shanghai 200444, China
| | - Afang Zhang
- Laboratory of Polymer Chemistry, College of Materials Science and Engineering, Shanghai University, Materials Building
Room 447, Nanchen Street 333, Shanghai 200444, China
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20
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Peng C, Zhang T, Ortiz‐Ortiz DN, Vishwakarma A, Barton HA, Joy A. Modification of narrow‐spectrum peptidomimetic polyurethanes with fatty acid chains confers broad‐spectrum antibacterial activity. POLYM INT 2019. [DOI: 10.1002/pi.5773] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chao Peng
- Department of Polymer ScienceThe University of Akron Akron OH USA
| | - Tian Zhang
- Department of Polymer ScienceThe University of Akron Akron OH USA
| | | | | | - Hazel A Barton
- Department of BiologyThe University of Akron Akron OH USA
| | - Abraham Joy
- Department of Polymer ScienceThe University of Akron Akron OH USA
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21
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Poudyal R, Cakmak FP, Keating CD, Bevilacqua PC. Physical Principles and Extant Biology Reveal Roles for RNA-Containing Membraneless Compartments in Origins of Life Chemistry. Biochemistry 2018; 57:2509-2519. [PMID: 29560725 PMCID: PMC7276092 DOI: 10.1021/acs.biochem.8b00081] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This Perspective focuses on RNA in biological and nonbiological compartments resulting from liquid-liquid phase separation (LLPS), with an emphasis on origins of life. In extant cells, intracellular liquid condensates, many of which are rich in RNAs and intrinsically disordered proteins, provide spatial regulation of biomolecular interactions that can result in altered gene expression. Given the diversity of biogenic and abiogenic molecules that undergo LLPS, such membraneless compartments may have also played key roles in prebiotic chemistries relevant to the origins of life. The RNA World hypothesis posits that RNA may have served as both a genetic information carrier and a catalyst during the origin of life. Because of its polyanionic backbone, RNA can undergo LLPS by complex coacervation in the presence of polycations. Phase separation could provide a mechanism for concentrating monomers for RNA synthesis and selectively partition longer RNAs with enzymatic functions, thus driving prebiotic evolution. We introduce several types of LLPS that could lead to compartmentalization and discuss potential roles in template-mediated non-enzymatic polymerization of RNA and other related biomolecules, functions of ribozymes and aptamers, and benefits or penalties imparted by liquid demixing. We conclude that tiny liquid droplets may have concentrated precious biomolecules and acted as bioreactors in the RNA World.
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Affiliation(s)
- Raghav Poudyal
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Center for RNA Molecular Biology, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Fatma Pir Cakmak
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Christine D. Keating
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Philip C. Bevilacqua
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Center for RNA Molecular Biology, Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Biochemistry and Molecular Biology, Pennsylvania State University, University Park, Pennsylvania 16802, United States
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22
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Cruz MA, Morris DL, Swanson JP, Kundu M, Mankoci SG, Leeper TC, Joy A. Efficient Protein Encapsulation within Thermoresponsive Coacervate-Forming Biodegradable Polyesters. ACS Macro Lett 2018; 7:477-481. [PMID: 35619345 DOI: 10.1021/acsmacrolett.8b00118] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Presented here is a novel method for encapsulating proteins into biodegradable, thermoresponsive coacervate-type polyesters. Bovine serum albumin (BSA) was efficiently incorporated into coacervate droplets via a simple thermoresponsive encapsulation mechanism. Tunable modular systems for encapsulation such as the one presented here may be useful in a range of protein delivery applications.
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Affiliation(s)
- Megan A. Cruz
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Daniel L. Morris
- Department of Chemistry and Biochemistry, The University of Akron, Akron, Ohio 44325, United States
| | - John P. Swanson
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Mangaldeep Kundu
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Steven G. Mankoci
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Thomas C. Leeper
- College of Science and Mathematics, Kennesaw State University, Kennesaw, Georgia 30144, United States
| | - Abraham Joy
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
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23
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Vanparijs N, Nuhn L, De Geest BG. Transiently thermoresponsive polymers and their applications in biomedicine. Chem Soc Rev 2018; 46:1193-1239. [PMID: 28165097 DOI: 10.1039/c6cs00748a] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The focus of this review is on the class of transiently thermoresponsive polymers. These polymers are thermoresponsive, but gradually lose this property upon chemical transformation - often a hydrolysis reaction - in the polymer side chain or backbone. An overview of the different approaches used for the design of these polymers along with their physicochemical properties is given. Their amphiphilic properties and degradability into fully soluble compounds make this class of responsive polymers attractive for drug delivery and tissue engineering applications. Examples of these are also provided in this review.
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Affiliation(s)
- Nane Vanparijs
- Department of Pharmaceutics, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium.
| | - Lutz Nuhn
- Department of Pharmaceutics, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium.
| | - Bruno G De Geest
- Department of Pharmaceutics, Ghent University, Ottergemsesteenweg 460, 9000 Ghent, Belgium.
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24
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Marianelli AM, Miller BM, Keating CD. Impact of macromolecular crowding on RNA/spermine complex coacervation and oligonucleotide compartmentalization. SOFT MATTER 2018; 14:368-378. [PMID: 29265152 DOI: 10.1039/c7sm02146a] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We report the effect of neutral macromolecular crowders poly(ethylene glycol) (PEG) (8 kDa) and Ficoll (70 kDa) on liquid-liquid phase separation in a polyuridylic acid (polyU)/spermine complex coacervate system. The addition of PEG decreased both the amount of spermine required for phase separation and the coacervation temperature (TC). We interpret these effects on phase behavior as arising due to excluded volume and preferential interactions on both the secondary structure/condensation of spermine-associated polyU molecules and on the association of soluble polyU/spermine polyelectrolyte complexes to form coacervate droplets. Examination of coacervates formed in the presence of fluorescently-labeled PEG or Ficoll crowders indicated that Ficoll is accumulated while PEG is excluded from the coacervate phase, which provides further insight into the differences in phase behavior. Crowding agents impact distribution of a biomolecular solute: partitioning of a fluorescently-labeled U15 RNA oligomer into the polyU/spermine coacervates was increased approximately two-fold by 20 wt% Ficoll 70 kDa and by more than two orders of magnitude by 20 wt% PEG 8 kDa. The volume of the coacervate phase decreased in the presence of crowder relative to a dilute buffer solution. These findings indicate that potential impacts of macromolecular crowding on phase behavior and solute partitioning should be considered in model systems for intracellular membraneless organelles.
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Affiliation(s)
- A M Marianelli
- Department of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, USA.
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25
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Wolf T, Rheinberger T, Wurm FR. Thermoresponsive coacervate formation of random poly(phosphonate) terpolymers. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.05.048] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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26
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Mankoci S, Kaiser RL, Sahai N, Barton HA, Joy A. Bactericidal Peptidomimetic Polyurethanes with Remarkable Selectivity against Escherichia coli. ACS Biomater Sci Eng 2017; 3:2588-2597. [DOI: 10.1021/acsbiomaterials.7b00309] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Steven Mankoci
- Department
of Polymer Science and ‡Department of Biology, The University of Akron, Akron, Ohio 44325, United States
| | - Ricky L. Kaiser
- Department
of Polymer Science and ‡Department of Biology, The University of Akron, Akron, Ohio 44325, United States
| | - Nita Sahai
- Department
of Polymer Science and ‡Department of Biology, The University of Akron, Akron, Ohio 44325, United States
| | - Hazel A. Barton
- Department
of Polymer Science and ‡Department of Biology, The University of Akron, Akron, Ohio 44325, United States
| | - Abraham Joy
- Department
of Polymer Science and ‡Department of Biology, The University of Akron, Akron, Ohio 44325, United States
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27
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Zhou D, Pierucci L, Gao Y, O'Keeffe Ahern J, Huang X, Sigen A, Wang W. Thermo- and pH-Responsive, Coacervate-Forming Hyperbranched Poly(β-amino ester)s for Selective Cell Binding. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5793-5802. [PMID: 28170215 DOI: 10.1021/acsami.6b15005] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report a new type of thermo- and pH-responsive, coacervate-forming highly degradable polymer-hyperbranched poly(β-amino esters) (HPAEs) and its selective cell binding behaviors. The HPAEs were synthesized from 5-amino-1-pentanol (S5) and trimethylolpropane ethoxylate triacrylate (TMPETA) via an A2+B3 type Michael addition. The existence of multiple hydrogen bond pairs as well as tertiary amines makes the S5-TMPETA polymers manifest temperature- and pH-dependent phase transition. By varying the length of the ethylene glycol (EG) spacers in the TMPETA, polymer molecular weight, concentration, and pH value, the phase transition of the S5-TMPETA can be easily tuned in aqueous and buffer solutions, as evidenced by UV-vis spectroscopy and DLS measurements. Especially, the S5-TMPETA prepared from S5 and trimethylolpropane ethoxylate triacrylate 692 (S5-TMPETA692) shows a lower critical solution temperature (LCST) around 33 °C, above which the S5-TMPTEA can form coacervate particles able to encapsulate functional molecules effectively. Importantly, when incubation with HeLa cells, the S5-TMPTETA692 exhibits a temperature- and pH-responsive selective cell binding behaviors. In addition, the S5-TMPETA are highly hydrolyzable and elicit negligible cytotoxicity. This new type of "smart" polymer should find use in a variety of biomedical applications.
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Affiliation(s)
- Dezhong Zhou
- Charles Institute of Dermatology, School of Medicine, University College Dublin , Dublin 4, Ireland
| | - Luca Pierucci
- Charles Institute of Dermatology, School of Medicine, University College Dublin , Dublin 4, Ireland
| | - Yongsheng Gao
- Charles Institute of Dermatology, School of Medicine, University College Dublin , Dublin 4, Ireland
| | - Jonathan O'Keeffe Ahern
- Charles Institute of Dermatology, School of Medicine, University College Dublin , Dublin 4, Ireland
| | - Xiaobei Huang
- Charles Institute of Dermatology, School of Medicine, University College Dublin , Dublin 4, Ireland
- School of Materials Science and Engineering, Sichuan University , Chengdu 610064, China
| | - A Sigen
- Charles Institute of Dermatology, School of Medicine, University College Dublin , Dublin 4, Ireland
| | - Wenxin Wang
- School of Materials Science and Engineering, Tianjin University , Tianjin 300072, China
- Charles Institute of Dermatology, School of Medicine, University College Dublin , Dublin 4, Ireland
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28
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Swanson JP, Cruz MA, Monteleone LR, Martinez MR, Costanzo PJ, Joy A. The effect of pendant group structure on the thermoresponsive properties of N-substituted polyesters. Polym Chem 2017. [DOI: 10.1039/c7py01391d] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Structure–property correlation studies of a diverse set of biodegradable thermoresponsive polyesters provides a rationale for the design of thermoresponsive polyesters with desired cloud points.
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Affiliation(s)
- John P. Swanson
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - Megan A. Cruz
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - Leanna R. Monteleone
- Department of Chemistry and Biochemistry
- California Polytechnic State University
- San Luis Obispo
- USA
| | - Michael R. Martinez
- Department of Chemistry and Biochemistry
- California Polytechnic State University
- San Luis Obispo
- USA
| | - Philip J. Costanzo
- Department of Chemistry and Biochemistry
- California Polytechnic State University
- San Luis Obispo
- USA
| | - Abraham Joy
- Department of Polymer Science
- The University of Akron
- Akron
- USA
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29
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Curley J, Hasan MR, Larson J, Brooks BD, Liu Q, Jain T, Joy A, Brooks AE. An Osteoconductive Antibiotic Bone Eluting Putty with a Custom Polymer Matrix. Polymers (Basel) 2016; 8:E247. [PMID: 30974523 PMCID: PMC6432247 DOI: 10.3390/polym8070247] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 06/19/2016] [Accepted: 06/21/2016] [Indexed: 01/12/2023] Open
Abstract
With the rising tide of antibiotic resistant bacteria, extending the longevity of the current antibiotic arsenal is becoming a necessity. Developing local, controlled release antibiotic strategies, particularly for difficult to penetrate tissues such as bone, may prove to be a better alternative. Previous efforts to develop an osteoconductive local antibiotic release device for bone were created as solid molded composites; however, intimate contact with host bone was found to be critical to support host bone regrowth; thus, an osteocondconductive antibiotic releasing bone void filling putty was developed. Furthermore, a controlled releasing polymer matrix was refined using pendant-functionalized diols to provide tailorable pharmacokinetics. In vitro pharmacokinetic and bioactivity profiles were compared for a putty formulation with an analogous composition as its molded counterpart as well as four new pendant-functionalized polymers. A best-fit analysis of polymer composition in either small cylindrical disks or larger spheres revealed that the new pendant-functionalized polymers appear to release vancomycin via both diffusion and erosion regardless of the geometry of the putty. In silico simulations, a valuable technique for diffusion mediated controlled release models, will be used to confirm and optimize this property.
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Affiliation(s)
- John Curley
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND 58105, USA.
| | | | - Jacob Larson
- Department of Industrial and Manufacturing Engineering, North Dakota State University, Fargo, ND 58105, USA.
| | - Benjamin D Brooks
- Department of Electrical and Computer Engineering, North Dakota State University, Fargo, ND 58105, USA.
| | - Qianhui Liu
- Department of Polymer Science, University of Akron, Akron, OH 44325, USA.
| | - Tanmay Jain
- Department of Polymer Science, University of Akron, Akron, OH 44325, USA.
| | - Abraham Joy
- Department of Polymer Science, University of Akron, Akron, OH 44325, USA.
| | - Amanda E Brooks
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND 58105, USA.
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30
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Govindarajan SR, Xu Y, Swanson JP, Jain T, Lu Y, Choi JW, Joy A. A Solvent and Initiator Free, Low-Modulus, Degradable Polyester Platform with Modular Functionality for Ambient-Temperature 3D Printing. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02399] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Sudhanva R. Govindarajan
- Department
of Polymer Science and ‡Department of Mechanical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Ying Xu
- Department
of Polymer Science and ‡Department of Mechanical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - John P. Swanson
- Department
of Polymer Science and ‡Department of Mechanical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Tanmay Jain
- Department
of Polymer Science and ‡Department of Mechanical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Yanfeng Lu
- Department
of Polymer Science and ‡Department of Mechanical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Jae-Won Choi
- Department
of Polymer Science and ‡Department of Mechanical Engineering, The University of Akron, Akron, Ohio 44325, United States
| | - Abraham Joy
- Department
of Polymer Science and ‡Department of Mechanical Engineering, The University of Akron, Akron, Ohio 44325, United States
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31
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de Jongh PAJM, Mortiboy A, Sulley GS, Bennett MR, Anastasaki A, Wilson P, Haddleton DM, Kempe K. Dual Stimuli-Responsive Comb Polymers from Modular N-Acylated Poly(aminoester)-Based Macromonomers. ACS Macro Lett 2016; 5:321-325. [PMID: 35614728 DOI: 10.1021/acsmacrolett.5b00904] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
We report the synthesis of dual-responsive N-acylated poly(aminoester) (NPAE)-based comb polymers with varying molecular composition and monomer sequence via a combination of spontaneous zwitterionic copolymerization and redox-initiated reversible addition-fragmentation chain transfer (RRAFT) polymerization. NPAE macromonomers were synthesized from different nucleophilic (MN), for example, 2-ethyl-2-oxazoline (EtOx) or 2-ethyl-2-oxazine (EtOz), and electrophilic monomers (ME), for example, acrylic acid (AA) or 2-carboxyethyl acrylate (CEA), to tune the hydrophilicity and sequence of the systems. The latter was found to influence the thermal properties and stability of the respective comb polymers. Turbidity investigations in aqueous solution revealed a dual-responsive behavior of the comb polymers being responsive to both temperature and pH changes due to ω-carboxylic end groups of the NPAE-based macromonomers. Additional methylene groups in the NPAE backbone rendered the corresponding systems more hydrophobic and, hence, decreased the cloud point temperatures and, at the same time, increased the pH values (at constant temperature) at which the polymer phase separates from the aqueous solution.
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Affiliation(s)
| | - Alice Mortiboy
- Department
of Chemistry, University of Warwick, CV4 7AL, Coventry, United Kingdom
| | - Greg S. Sulley
- Department
of Chemistry, University of Warwick, CV4 7AL, Coventry, United Kingdom
| | - Mechelle R. Bennett
- Department
of Chemistry, University of Warwick, CV4 7AL, Coventry, United Kingdom
| | - Athina Anastasaki
- Department
of Chemistry, University of Warwick, CV4 7AL, Coventry, United Kingdom
| | - Paul Wilson
- Department
of Chemistry, University of Warwick, CV4 7AL, Coventry, United Kingdom
| | - David M. Haddleton
- Department
of Chemistry, University of Warwick, CV4 7AL, Coventry, United Kingdom
| | - Kristian Kempe
- Department
of Chemistry, University of Warwick, CV4 7AL, Coventry, United Kingdom
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32
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Abstract
A library of thermoresponsive polymers were developed with hydrophobic polynorbornene backbones and hydrophilic N-alkyl-amide/imide side groups, whose thermoresponsive behaviour in water could be conveniently tuned in a wide temperature range.
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Affiliation(s)
- Yuming Zhao
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
| | - Ke Zhang
- State Key Laboratory of Polymer Physics and Chemistry
- Institute of Chemistry
- The Chinese Academy of Sciences
- Beijing 100190
- China
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33
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Swanson JP, Martinez MR, Cruz MA, Mankoci SG, Costanzo PJ, Joy A. A coacervate-forming biodegradable polyester with elevated LCST based on bis-(2-methoxyethyl)amine. Polym Chem 2016. [DOI: 10.1039/c6py00814c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
This work details a thermoresponsive, biodegradable coacervate-forming polyester, which exhibits tunable Tcp under various conditions.
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Affiliation(s)
- J. P. Swanson
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - M. R. Martinez
- Department of Chemistry and Biochemistry
- California Polytechnic State University
- San Luis Obispo
- USA
| | - M. A. Cruz
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - S. G. Mankoci
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - P. J. Costanzo
- Department of Chemistry and Biochemistry
- California Polytechnic State University
- San Luis Obispo
- USA
| | - A. Joy
- Department of Polymer Science
- The University of Akron
- Akron
- USA
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