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Yildirim T, Bali A, Koch M, Paul P, Latta L, Schneider-Daum N, Gallei M, Lehr CM. A New Class of Polyion Complex Vesicles (PIC-somes) to Improve Antimicrobial Activity of Tobramycin in Pseudomonas Aeruginosa Biofilms. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401926. [PMID: 38829185 DOI: 10.1002/smll.202401926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/26/2024] [Indexed: 06/05/2024]
Abstract
Pseudomonas aeruginosa (PA) is a major healthcare concern due to its tolerance to antibiotics when enclosed in biofilms. Tobramycin (Tob), an effective cationic aminoglycoside antibiotic against planktonic PA, loses potency within PA biofilms due to hindered diffusion caused by interactions with anionic biofilm components. Loading Tob into nano-carriers can enhance its biofilm efficacy by shielding its charge. Polyion complex vesicles (PIC-somes) are promising nano-carriers for charged drugs, allowing higher drug loadings than liposomes and polymersomes. In this study, a new class of nano-sized PIC-somes, formed by Tob-diblock copolymer complexation is presented. This approach replaces conventional linear PEG with brush-like poly[ethylene glycol (methyl ether methacrylate)] (PEGMA) in the shell-forming block, distinguishing it from past methods. Tob paired with a block copolymer containing hydrophilic PEGMA induces micelle formation (PIC-micelles), while incorporating hydrophobic pyridyldisulfide ethyl methacrylate (PDSMA) monomer into PEGMA chains reduces shell hydrophilicity, leads to the formation of vesicles (PIC-somes). PDSMA unit incorporation enables unprecedented dynamic disulfide bond-based shell cross-linking, significantly enhancing stability under saline conditions. Neither PIC-somes nor PIC-micelles show any relevant cytotoxicity on A549, Calu-3, and dTHP-1 cells. Tob's antimicrobial efficacy against planktonic PA remains unaffected after encapsulation into PIC-somes and PIC-micelles, but its potency within PA biofilms significantly increases.
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Affiliation(s)
- Turgay Yildirim
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
| | - Aghiad Bali
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123, Saarbrücken, Germany
| | - Marcus Koch
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123, Saarbrücken, Germany
| | - Pascal Paul
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
| | - Lorenz Latta
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
| | - Nicole Schneider-Daum
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
| | - Markus Gallei
- Polymer Chemistry, Saarland University, Campus C4 2, 66123, Saarbrücken, Germany
- Saarene - Saarland Center for Energy Materials and Sustainability, Campus C4 2, 66123, Saarbrücken, Germany
| | - Claus-Michael Lehr
- HIPS - Helmholtz Institute for Pharmaceutical Research Saarland, 66123, Saarbrücken, Germany
- Department of Pharmacy, Saarland University, 66123, Saarbrücken, Germany
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2
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Wang L, Cao Q, Wang X, Wu D. Visible light triggered controlled formation of rapidly self-healing hydrogels based on thiol-disulfide exchange. SOFT MATTER 2022; 18:3004-3012. [PMID: 35355026 DOI: 10.1039/d1sm01698a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The properties of stimuli-responsive hydrogels can be tailored under various external stimuli, but it is difficult to realize the customized adjustment of hydrogel properties since the crosslinking degree in the gelation process is intractable. Here, a visible light triggered thiol-disulfide exchange reaction was applied for constructing disulfide-crosslinked hydrogels from P(EMA-SS-PEG), a poly(ethylene glycol) grafted poly(ethyl methacrylate) derivative with a disulfide linkage as the grafting point. This photochemical method provides mild gelation conditions to handily regulate the morphology, mechanical properties, swelling ratio, and degradation rate of hydrogels by simply varying the irradiation time. Based on this strategy, these disulfide-crosslinked hydrogel coatings showed rapid self-healing in 10 min under ambient conditions, which was dependent on the width of the scratch, temperature, and humidity. Notably, spraying water on these coatings could significantly accelerate the self-healing process of large scratches (360 μm) at room temperature with a self-healing time of 1 hour, enabling the practical application of hydrogel coatings in a natural environment.
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Affiliation(s)
- Linlin Wang
- Key Laboratory of Special Functional Aggregated Materials (Shandong University), Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Qingchen Cao
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
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3
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Leer K, Cinar G, Solomun JI, Martin L, Nischang I, Traeger A. Core-crosslinked, temperature- and pH-responsive micelles: design, physicochemical characterization, and gene delivery application. NANOSCALE 2021; 13:19412-19429. [PMID: 34591061 DOI: 10.1039/d1nr04223h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Stimuli-responsive block copolymer micelles can provide tailored properties for the efficient delivery of genetic material. In particular, temperature- and pH-responsive materials are of interest, since their physicochemical properties can be easily tailored to meet the requirements for successful gene delivery. Within this study, a stimuli-responsive micelle system for gene delivery was designed based on a diblock copolymer consisting of poly(N,N-diethylacrylamide) (PDEAm) as a temperature-responsive segment combined with poly(aminoethyl acrylamide) (PAEAm) as a pH-responsive, cationic segment. Upon temperature increase, the PDEAm block becomes hydrophobic due to its lower critical solution temperature (LCST), leading to micelle formation. Furthermore, the monomer 2-(pyridin-2-yldisulfanyl)ethyl acrylate (PDSAc) was incorporated into the temperature-responsive PDEAm building block enabling disulfide crosslinking of the formed micelle core to stabilize its structure regardless of temperature and dilution. The cloud points of the PDEAm block and the diblock copolymer were investigated by turbidimetry and fluorescence spectroscopy. The temperature-dependent formation of micelles was analyzed by dynamic light scattering (DLS) and elucidated in detail by an analytical ultracentrifuge (AUC), which provided detailed insights into the solution dynamics between polymers and assembled micelles as a function of temperature. Finally, the micelles were investigated for their applicability as gene delivery vectors by evaluation of cytotoxicity, pDNA binding, and transfection efficiency using HEK293T cells. The investigations showed that core-crosslinking resulted in a 13-fold increase in observed transfection efficiency. Our study presents a comprehensive investigation from polymer synthesis to an in-depth physicochemical characterization and biological application of a crosslinked micelle system including stimuli-responsive behavior.
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Affiliation(s)
- Katharina Leer
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Gizem Cinar
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Jana I Solomun
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Liam Martin
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ivo Nischang
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Anja Traeger
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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4
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Chen X, Michinobu T. Postpolymerization Modification: A Powerful Tool for the Synthesis and Function Tuning of Stimuli‐Responsive Polymers. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100370] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Xu Chen
- Department of Materials Science and Engineering Tokyo Institute of Technology 2‐12‐1 Ookayama, Meguro‐ku Tokyo 152‐8552 Japan
| | - Tsuyoshi Michinobu
- Department of Materials Science and Engineering Tokyo Institute of Technology 2‐12‐1 Ookayama, Meguro‐ku Tokyo 152‐8552 Japan
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5
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Reduction-triggered di-block copolymer prodrug for high-performance long-acting tumor-selective killing. Colloids Surf B Biointerfaces 2020; 196:111368. [DOI: 10.1016/j.colsurfb.2020.111368] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/27/2020] [Accepted: 08/29/2020] [Indexed: 01/19/2023]
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6
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Chang YL, Wei TC, Liu YL. Electrochemical activation of polymer chains mediated with radical transfer reactions. Chem Commun (Camb) 2020; 56:2626-2629. [PMID: 32016254 DOI: 10.1039/c9cc09768f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
This work demonstrates a general and effective approach to activate inert polymer chains for further reactions through electrochemically driven radical generation and radical transfer reactions. The generated radical-containing polymer chains show capacity for further polymer reactions and preparation of polymer hybrids.
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Affiliation(s)
- Yu-Ling Chang
- Department of Chemical Engineering, National Tsing Hua University, #101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, Taiwan.
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7
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Maruya-Li K, Shetty C, Moini Jazani A, Arezi N, Oh JK. Dual Reduction/Acid-Responsive Disassembly and Thermoresponsive Tunability of Degradable Double Hydrophilic Block Copolymer. ACS OMEGA 2020; 5:3734-3742. [PMID: 32118189 PMCID: PMC7045573 DOI: 10.1021/acsomega.9b04430] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 01/29/2020] [Indexed: 05/27/2023]
Abstract
We report a thermoresponsive double hydrophilic block copolymer degradable in response to dual reduction and acidic pH at dual locations. The copolymer consists of a poly(ethylene oxide) block covalently connected through an acid-labile acetal linkage with a thermoresponsive polymethacrylate block containing pendant oligo(ethylene oxide) and disulfide groups. The copolymer undergoes temperature-driven self-assembly in water to form nanoassemblies with acetal linkages at the core/corona interface and disulfide pendants in the core, exhibiting dual reduction/acid responses at dual locations. The physically assembled nanoaggregates are converted to disulfide-core-crosslinked nanogels through disulfide-thiol exchange reaction, retaining enhanced colloidal stability, yet degraded to water-soluble unimers upon reduction/acid-responsive degradation. Further, the copolymer exhibits improved tunability of thermoresponsive property upon the cleavage of junction acetal and pendant disulfide linkages individually and in combined manner. This work suggests that dual location dual reduction/acid-responsive degradation is a versatile strategy toward effective drug delivery exhibiting disulfide-core-crosslinking capability and disassembly as well as improved thermoresponsive tunability.
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8
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Altinbasak I, Arslan M, Sanyal R, Sanyal A. Pyridyl disulfide-based thiol–disulfide exchange reaction: shaping the design of redox-responsive polymeric materials. Polym Chem 2020. [DOI: 10.1039/d0py01215g] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review provides an overview of synthetic approaches utilized to incorporate the thiol-reactive pyridyl-disulfide motif into various polymeric materials, and briefly highlights its utilization to obtain functional materials.
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Affiliation(s)
| | - Mehmet Arslan
- Yalova University
- Faculty of Engineering
- Department of Polymer Materials Engineering
- 77100 Yalova
- Turkey
| | - Rana Sanyal
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
- Center for Life Sciences and Technologies
| | - Amitav Sanyal
- Department of Chemistry
- Bogazici University
- Istanbul
- Turkey
- Center for Life Sciences and Technologies
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9
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Leichner C, Jelkmann M, Bernkop-Schnürch A. Thiolated polymers: Bioinspired polymers utilizing one of the most important bridging structures in nature. Adv Drug Deliv Rev 2019; 151-152:191-221. [PMID: 31028759 DOI: 10.1016/j.addr.2019.04.007] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 04/16/2019] [Accepted: 04/16/2019] [Indexed: 12/13/2022]
Abstract
Thiolated polymers designated "thiomers" are obtained by covalent attachment of thiol functionalities on the polymeric backbone of polymers. In 1998 these polymers were first described as mucoadhesive and in situ gelling compounds forming disulfide bonds with cysteine-rich substructures of mucus glycoproteins and crosslinking through inter- and intrachain disulfide bond formation. In the following, it was shown that thiomers are able to form disulfides with keratins and membrane-associated proteins exhibiting also cysteine-rich substructures. Furthermore, permeation enhancing, enzyme inhibiting and efflux pump inhibiting properties were demonstrated. Because of these capabilities thiomers are promising tools for drug delivery guaranteeing a strongly prolonged residence time as well as sustained release on mucosal membranes. Apart from that, thiomers are used as drugs per se. In particular, for treatment of dry eye syndrome various thiolated polymers are in development and a first product has already reached the market. Within this review an overview about the thiomer-technology and its potential for different applications is provided discussing especially the outcome of studies in non-rodent animal models and that of numerous clinical trials. Moreover, an overview on product developments is given.
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10
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Geven M, Luo H, Koo D, Panambur G, Donno R, Gennari A, Marotta R, Grimaldi B, Tirelli N. Disulfide-Mediated Bioconjugation: Disulfide Formation and Restructuring on the Surface of Nanomanufactured (Microfluidics) Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2019; 11:26607-26618. [PMID: 31282644 DOI: 10.1021/acsami.9b07972] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This study is about (1) nanomanufacturing (focusing on microfluidic-assisted nanoprecipitation), (2) advanced colloid characterization (focusing on field flow fractionation), and (3) the possible restructuring of surface disulfides. Disulfides are dynamic and exchangeable groups, and here we specifically focus, first, on their use to introduce biofunctional groups and, second, on their re-organization, which may lead to variable surface chemistries and uncontrolled cell interactions. The particles were obtained via microfluidic-assisted (flow-focused) nanoprecipitation of poly(ethylene glycol)-b-poly(ε-caprolactone) bearing or not a 2-pyridyl disulfide (PDS) terminal group, which quantitatively exchanges with thiols in solution. In this study, we have paid specific attention to size characterization, thereby also demonstrating the limitations of dynamic light scattering (DLS) as a stand-alone technique. By using asymmetric flow field flow fractionation coupled with DLS, static light scattering (SLS), and refractive index detectors, we show that relatively small amounts of >100 nm aggregates (cryogenic transmission electron microscopy and SLS/DLS comparison suggesting them to be wormlike micelles) dominated the stand-alone DLS results, whereas the "real" size distributions picked <50 nm. Our key result is that the kinetics of the conjugation based on PDS-thiol exchange was controlled by the thiol pKa, and this also determined the rate of the exchange between the resulting disulfides and glutathione (GSH). In particular, more acidic thiols (e.g., peptides, where a cysteine is flanked by cationic residues) react faster with PDS, but their disulfides hardly exchange with GSH; the reverse applies to thiols with a higher pKa. Disulfides that resist against restructuring via thiol-disulfide exchange allow for a stable bioconjugation, although they may be bad news for payload release under reducing conditions. However, experiments of both thiol release and nanoparticles uptake in cells (HCT116) show that also the disulfides formed from less-acidic and, therefore, less-reactive, and more exchangeable thiols were stable for at least a few hours even in a GSH-rich (10 mM) environment; this suggests a sufficiently long stability of surface groups to achieve, for example, a cell-targeting effect.
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Affiliation(s)
| | - Hanying Luo
- MilliporeSigma Materials Science , 6000 N Teutonia Avenue , Milwaukee , Wisconsin 53209 , United States
| | - Donghun Koo
- MilliporeSigma Materials Science , 6000 N Teutonia Avenue , Milwaukee , Wisconsin 53209 , United States
| | - Gangadhar Panambur
- MilliporeSigma Materials Science , 6000 N Teutonia Avenue , Milwaukee , Wisconsin 53209 , United States
| | | | | | | | | | - Nicola Tirelli
- Division of Pharmacy and Optometry, School of Health Sciences, Faculty of Biology, Medicine and Health , The University of Manchester , M13 9PT Manchester , U.K
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11
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Sui B, Cheng C, Xu P. Pyridyl Disulfide Functionalized Polymers as Nanotherapeutic Platforms. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900062] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Binglin Sui
- Department of Discovery and Biomedical Sciences College of Pharmacy University of South Carolina 715 Sumter Columbia SC 29208 USA
| | - Chen Cheng
- Department of Discovery and Biomedical Sciences College of Pharmacy University of South Carolina 715 Sumter Columbia SC 29208 USA
| | - Peisheng Xu
- Department of Discovery and Biomedical Sciences College of Pharmacy University of South Carolina 715 Sumter Columbia SC 29208 USA
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12
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Korde JM, Kandasubramanian B. Fundamentals and Effects of Biomimicking Stimuli-Responsive Polymers for Engineering Functions. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00683] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jay M. Korde
- Biocomposite Laboratory, Department of Metallurgical & Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune-411025, India
| | - Balasubramanian Kandasubramanian
- Biocomposite Laboratory, Department of Metallurgical & Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune-411025, India
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13
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Oh JK. Disassembly and tumor-targeting drug delivery of reduction-responsive degradable block copolymer nanoassemblies. Polym Chem 2019. [DOI: 10.1039/c8py01808a] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Review on recent strategies to synthesize novel disulfide-containing reductively-degradable block copolymers and their nanoassemblies as being classified with the number, position, and location of the disulfide linkages toward effective tumor-targeting intracellular drug delivery exhibiting enhanced release of encapsulated drugs.
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Affiliation(s)
- Jung Kwon Oh
- Department of Chemistry and Biochemistry
- Concordia University
- Montreal
- Canada H4B 1R6
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14
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Schäfer O, Barz M. Of Thiols and Disulfides: Methods for Chemoselective Formation of Asymmetric Disulfides in Synthetic Peptides and Polymers. Chemistry 2018; 24:12131-12142. [DOI: 10.1002/chem.201800681] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Olga Schäfer
- Institute of Organic Chemistry; Johannes Gutenberg University Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Matthias Barz
- Institute of Organic Chemistry; Johannes Gutenberg University Mainz; Duesbergweg 10-14 55128 Mainz Germany
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15
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Lee KM, Kim KH, Yoon H, Kim H. Chemical Design of Functional Polymer Structures for Biosensors: From Nanoscale to Macroscale. Polymers (Basel) 2018; 10:E551. [PMID: 30966585 PMCID: PMC6415446 DOI: 10.3390/polym10050551] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 05/14/2018] [Accepted: 05/14/2018] [Indexed: 11/16/2022] Open
Abstract
Over the past decades, biosensors, a class of physicochemical detectors sensitive to biological analytes, have drawn increasing interest, particularly in light of growing concerns about human health. Functional polymeric materials have been widely researched for sensing applications because of their structural versatility and significant progress that has been made concerning their chemistry, as well as in the field of nanotechnology. Polymeric nanoparticles are conventionally used in sensing applications due to large surface area, which allows rapid and sensitive detection. On the macroscale, hydrogels are crucial materials for biosensing applications, being used in many wearable or implantable devices as a biocompatible platform. The performance of both hydrogels and nanoparticles, including sensitivity, response time, or reversibility, can be significantly altered and optimized by changing their chemical structures; this has encouraged us to overview and classify chemical design strategies. Here, we have organized this review into two main sections concerning the use of nanoparticles and hydrogels (as polymeric structures) for biosensors and described chemical approaches in relevant subcategories, which act as a guide for general synthetic strategies.
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Affiliation(s)
- Kyoung Min Lee
- Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea.
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea.
| | - Kyung Ho Kim
- Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea.
| | - Hyeonseok Yoon
- Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea.
- School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea.
| | - Hyungwoo Kim
- Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea.
- School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Korea.
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16
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Fritze UF, Craig SL, von Delius M. Disulfide-centered poly(methyl acrylates): Four different stimuli to cleave a polymer. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Urs F. Fritze
- University of Ulm, Institute of Organic Chemistry and Advanced Materials, Albert-Einstein-Allee 11; Ulm 89081 Germany
| | - Stephen L. Craig
- Duke University, Department of Chemistry; 3221 French Family Science Center, 124 Science Drive; Durham North Carolina 27708
| | - Max von Delius
- University of Ulm, Institute of Organic Chemistry and Advanced Materials, Albert-Einstein-Allee 11; Ulm 89081 Germany
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17
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Shahkaramipour N, Lai CK, Venna SR, Sun H, Cheng C, Lin H. Membrane Surface Modification Using Thiol-Containing Zwitterionic Polymers via Bioadhesive Polydopamine. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b05025] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nima Shahkaramipour
- Department
of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Cheng Kee Lai
- Department
of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Surendar R. Venna
- National
Energy
Technology Laboratory/AECOM, 626 Cochrans
Mill Rd., Pittsburgh, Pennsylvania 15236, United States
| | - Haotian Sun
- Department
of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Chong Cheng
- Department
of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Haiqing Lin
- Department
of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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18
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Oz Y, Sanyal A. The Taming of the Maleimide: Fabrication of Maleimide-Containing 'Clickable' Polymeric Materials. CHEM REC 2017; 18:570-586. [PMID: 29286198 DOI: 10.1002/tcr.201700060] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 12/07/2017] [Indexed: 12/20/2022]
Abstract
Functional polymers are widely employed in various areas of biomedical sciences. In order to tailor them for desired applications, facile and efficient functionalization of these polymeric materials under mild and benign conditions is important. Polymers containing reactive maleimide groups can be employed for such applications since they provide an excellent handle for conjugation of thiol- and diene-containing molecules and biomolecules. Until recently, fabrication of maleimide containing polymeric materials has been challenging due to the interference from the highly reactive double bond. A Diels-Alder/retro Diels-Alder reaction sequence based strategy to transiently mask the maleimide group provides access to such polymeric materials. In this personal account, we summarize contributions from our group towards the fabrication and functionalization of maleimide-containing polymeric materials over the past decade.
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Affiliation(s)
- Yavuz Oz
- Department of Chemistry, Bogazici University, Bebek, 34342, Istanbul, Turkey
| | - Amitav Sanyal
- Department of Chemistry, Bogazici University, Bebek, 34342, Istanbul, Turkey.,Center for Life Sciences and Technologies, Bogazici University, Istanbul, Turkey
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19
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Regulation of protein‐binding activities of molecularly imprinted polymers via post‐imprinting modifications to exchange functional groups within the imprinted cavity. J Mol Recognit 2017; 31. [DOI: 10.1002/jmr.2633] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 02/05/2017] [Accepted: 03/15/2017] [Indexed: 01/09/2023]
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20
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Sevimli S, Knight FC, Gilchuk P, Joyce S, Wilson JT. Fatty Acid-Mimetic Micelles for Dual Delivery of Antigens and Imidazoquinoline Adjuvants. ACS Biomater Sci Eng 2017; 3:179-194. [PMID: 29046894 PMCID: PMC5642296 DOI: 10.1021/acsbiomaterials.6b00408] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Vaccine design has undergone a shift towards the use of purified protein subunit vaccines, which offer increased safety and greater control over antigen specificity, but at the expense of immunogenicity. Here we report the development of a new polymer-based vaccine delivery platform engineered to enhance immunity through the co-delivery of protein antigens and the Toll-like receptor 7 (TLR7) agonist imiquimod (IMQ). Owing to the preferential solubility of IMQ in fatty acids, a series of block copolymer micelles with a fatty acid-mimetic core comprising lauryl methacrylate (LMA) and methacrylic acid (MAA), and a poly(ethylene glycol) methyl ether methacrylate (PEGMA) corona decorated with pyridyl disulfide ethyl methacrylate (PDSM) moieties for antigen conjugation were synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. Carriers composed of 50 mole% LMA (LMA50) demonstrated the highest IMQ loading (2.2 w/w%) and significantly enhanced the immunostimulatory capacity of IMQ to induce dendritic cell maturation and proinflammatory cytokine production. Conjugation of a model antigen, ovalbumin (OVA), to the corona of IMQ-loaded LMA50 micelles enhanced in vitro antigen uptake and cross-presentation on MHC class I (MHC-I). A single intranasal (IN) immunization of mice with carriers co-loaded with IMQ and OVA elicited significantly higher pulmonary and systemic CD8+ T cell responses and increased serum IgG titer relative to a soluble formulation of antigen and adjuvant. Collectively, these data demonstrate that rationally designed fatty acid-mimetic micelles enhance intracellular antigen and IMQ delivery and have potential as synthetic vectors for enhancing the immunogenicity of subunit vaccines.
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Affiliation(s)
- Sema Sevimli
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, 2400 Highland Avenue
| | - Frances C. Knight
- Department of Biomedical Engineering, Vanderbilt University, 2301 Vanderbilt Place
| | - Pavlo Gilchuk
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Medical Center North
- Department of Veterans Administration Tennessee Valley Healthcare System, 1310 24th Avenue South
| | - Sebastian Joyce
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Medical Center North
- Department of Veterans Administration Tennessee Valley Healthcare System, 1310 24th Avenue South
- Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, 2301 Vanderbilt Place, Nashville, TN 37235, USA
| | - John T. Wilson
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, 2400 Highland Avenue
- Department of Biomedical Engineering, Vanderbilt University, 2301 Vanderbilt Place
- Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, 2301 Vanderbilt Place, Nashville, TN 37235, USA
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21
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Zhang Y, Zhang J, Xing C, Zhang M, Wang L, Zhao H. Protein Nanogels with Temperature-Induced Reversible Structures and Redox Responsiveness. ACS Biomater Sci Eng 2016; 2:2266-2275. [DOI: 10.1021/acsbiomaterials.6b00490] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yue Zhang
- Key
Laboratory of Functional Polymer Materials, Ministry of Education,
College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative
Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| | - Jiamin Zhang
- The
Key Laboratory of Bioactive Materials, Ministry of Education, College
of Life Sciences, Nankai University, Tianjin 300071, China
| | - Cheng Xing
- The
Key Laboratory of Bioactive Materials, Ministry of Education, College
of Life Sciences, Nankai University, Tianjin 300071, China
| | - Mingming Zhang
- Tianjin Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China
| | - Lianyong Wang
- The
Key Laboratory of Bioactive Materials, Ministry of Education, College
of Life Sciences, Nankai University, Tianjin 300071, China
| | - Hanying Zhao
- Key
Laboratory of Functional Polymer Materials, Ministry of Education,
College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative
Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, China
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22
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Peng H, Rübsam K, Huang X, Jakob F, Karperien M, Schwaneberg U, Pich A. Reactive Copolymers Based on N-Vinyl Lactams with Pyridyl Disulfide Side Groups via RAFT Polymerization and Postmodification via Thiol–Disulfide Exchange Reaction. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01210] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Huan Peng
- DWI-Leibniz Institute
for Interactive Materials e.V., Aachen, Germany
| | - Kristin Rübsam
- DWI-Leibniz Institute
for Interactive Materials e.V., Aachen, Germany
| | - Xiaobin Huang
- Developmental
BioEngineering, MIRA Institute for Biomedical Technology and Technical
Medicine, University of Twente, Enschede, The Netherlands
| | - Felix Jakob
- DWI-Leibniz Institute
for Interactive Materials e.V., Aachen, Germany
| | - Marcel Karperien
- Developmental
BioEngineering, MIRA Institute for Biomedical Technology and Technical
Medicine, University of Twente, Enschede, The Netherlands
| | | | - Andrij Pich
- DWI-Leibniz Institute
for Interactive Materials e.V., Aachen, Germany
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23
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Barlow TR, Brendel JC, Perrier S. Poly(bromoethyl acrylate): A Reactive Precursor for the Synthesis of Functional RAFT Materials. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00721] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Tammie R. Barlow
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
| | - Johannes C. Brendel
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
- Faculty
of Pharmacy and Pharmaceutical Sciences, Monash University, 381
Royal Parade, Parkville, Victoria 3052, Australia
| | - Sébastien Perrier
- Department
of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom
- Faculty
of Pharmacy and Pharmaceutical Sciences, Monash University, 381
Royal Parade, Parkville, Victoria 3052, Australia
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24
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Liu X, Hu D, Jiang Z, Zhuang J, Xu Y, Guo X, Thayumanavan S. Multi-Stimuli-Responsive Amphiphilic Assemblies through Simple Postpolymerization Modifications. Macromolecules 2016; 49:6186-6192. [PMID: 29353939 DOI: 10.1021/acs.macromol.6b01397] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
A strategy to construct different stimuli responsive polymers from post polymerization modifications of a single polymer scaffold via thiol-disulfide exchange has been developed. Here, we report on a random copolymer that enables the design and syntheses of a series of dual or multi-stimuli responsive nanoassemblies using a simple post-polymerization modification step. The reactive functional group involves a side chain monopyridyl disulfide unit, which rapidly and quantitatively reacts with various thiols under mild conditions. Independent and concurrent incorporation of physical, chemical or biologically responsive properties have been demonstrated. We envision that this strategy may open up opportunities to simplify the synthesis of multi-functional polymers with broad implications in a variety of biological applications.
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Affiliation(s)
- Xiaochi Liu
- State-Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.,Department of Chemistry, University of Massachusetts, Ameherst, Massachusetts 01003, United States
| | - Ding Hu
- Department of Chemistry, University of Massachusetts, Ameherst, Massachusetts 01003, United States
| | - Ziwen Jiang
- Department of Chemistry, University of Massachusetts, Ameherst, Massachusetts 01003, United States
| | - Jiaming Zhuang
- Department of Chemistry, University of Massachusetts, Ameherst, Massachusetts 01003, United States
| | - Yisheng Xu
- State-Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xuhong Guo
- State-Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - S Thayumanavan
- Department of Chemistry, University of Massachusetts, Ameherst, Massachusetts 01003, United States
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25
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Chen T, Han X, Peng Z, Li A, Liu J. Improvement of the hydrophilicity of 7, 8-dihydroxyflavone by in situ grafting of PEG-A via RAFT polymerization and the drug efficacy tests. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.06.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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26
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Asadi H, Khoee S. Dual responsive nanogels for intracellular doxorubicin delivery. Int J Pharm 2016; 511:424-435. [PMID: 27444549 DOI: 10.1016/j.ijpharm.2016.07.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 07/16/2016] [Indexed: 01/13/2023]
Abstract
Nanosized polymeric delivery systems that encapsulate drug molecules and release them in response to a specific intracellular stimulus are of promising interest for cancer therapy. Here, we demonstrated a simple and fast synthetic protocol of redox-responsive nanogels with high drug encapsulation efficiency and stability. The prepared nanogels displayed narrow size distributions and versatility of surface modification. The polymer precursor of these nanogels is based on a random copolymer that contains oligoethyleneglycol (OEG) and pyridyldisulfide (PDS) units as side-chain functionalities. The nanogels were prepared through a lock-in strategy in aqueous media via self cross-linking of PDS groups. By changing polymer concentration, we could control the size of nanogels in range of 80-115nm. The formed nanogels presented high doxorubicin (DOX) encapsulation efficiency (70% (w/w)) and displayed pH and redox-controlled drug release triggered by conditions mimicking the reducible intracellular environment. The nanogels displayed an excellent cytocompatibility and were effectively endocytosed by A2780CP ovarian cancer cells, which make them promising nanomaterials for the efficient intracellular delivery of anticancer drugs.
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Affiliation(s)
- Hamed Asadi
- Polymer Laboratory, Chemistry Department, School of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran
| | - Sepideh Khoee
- Polymer Laboratory, Chemistry Department, School of Science, University of Tehran, P.O. Box 14155-6455, Tehran, Iran.
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27
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Yildirim T, Traeger A, Preussger E, Stumpf S, Fritzsche C, Hoeppener S, Schubert S, Schubert US. Dual Responsive Nanoparticles from a RAFT Copolymer Library for the Controlled Delivery of Doxorubicin. Macromolecules 2016. [DOI: 10.1021/acs.macromol.5b02603] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Turgay Yildirim
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Anja Traeger
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Elisabeth Preussger
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Steffi Stumpf
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Carolin Fritzsche
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Stephanie Hoeppener
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Stephanie Schubert
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
- Institute
of Pharmacy, Department of Pharmaceutical Technology, Friedrich Schiller University Jena, Otto-Schott-Strasse 41, 07745 Jena, Germany
| | - Ulrich S. Schubert
- Laboratory
of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
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28
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Lybaert L, Vanparijs N, Fierens K, Schuijs M, Nuhn L, Lambrecht BN, De Geest BG. A Generic Polymer-Protein Ligation Strategy for Vaccine Delivery. Biomacromolecules 2016; 17:874-81. [PMID: 26812240 DOI: 10.1021/acs.biomac.5b01571] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Although the field of cancer immunotherapy is intensively investigated, there is still a need for generic strategies that allow easy, mild and efficient formulation of vaccine antigens. Here we report on a generic polymer-protein ligation strategy to formulate protein antigens into reversible polymeric conjugates for enhanced uptake by dendritic cells and presentation to CD8 T-cells. A N-hydroxypropylmethacrylamide (HPMA)-based copolymer was synthesized via RAFT polymerization followed by introduction of pyridyldisulfide moieties. To enhance ligation efficiency to ovalbumin, which is used as a model protein antigen, protected thiols were introduced onto lysine residues and deprotected in situ in the presence of the polymer. The ligation efficiency was compared for both the thiol-modified versus unmodified ovalbumin, and the reversibility was confirmed. Furthermore, the obtained nanoconjugates were tested in vitro for their interaction and association with dendritic cells, showing enhanced cellular uptake and antigen cross-presentation to CD8 T-cells.
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Affiliation(s)
- Lien Lybaert
- Department of Pharmaceutics, Ghent University , Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Nane Vanparijs
- Department of Pharmaceutics, Ghent University , Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Kaat Fierens
- VIB Inflammation Research Center, Ghent University , Technologiepark 927, 9052 Ghent Belgium
| | - Martijn Schuijs
- VIB Inflammation Research Center, Ghent University , Technologiepark 927, 9052 Ghent Belgium
| | - Lutz Nuhn
- Department of Pharmaceutics, Ghent University , Ottergemsesteenweg 460, 9000 Ghent, Belgium
| | - Bart N Lambrecht
- VIB Inflammation Research Center, Ghent University , Technologiepark 927, 9052 Ghent Belgium
| | - Bruno G De Geest
- Department of Pharmaceutics, Ghent University , Ottergemsesteenweg 460, 9000 Ghent, Belgium
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29
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Wang L, Li L, Wang X, Huang D, Yang F, Shen H, Li Z, Wu D. UV-triggered thiol–disulfide exchange reaction towards tailored biodegradable hydrogels. Polym Chem 2016. [DOI: 10.1039/c5py01925g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biodegradable hydrogels were constructed by a UV-triggered thiol–disulfide exchange reaction with temporal and spatial precision.
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Affiliation(s)
- Linlin Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Lei Li
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Key Laboratory of Polymer Chemistry & Physics of Ministry of Education
- Department of Polymer Science & Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Da Huang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Hong Shen
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Zichen Li
- Beijing National Laboratory for Molecular Sciences (BNLMS)
- Key Laboratory of Polymer Chemistry & Physics of Ministry of Education
- Department of Polymer Science & Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory of Polymer Physics & Chemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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31
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Desmet GB, D’hooge DR, Sabbe MK, Marin GB, Du Prez FE, Espeel P, Reyniers MF. Computational Study and Kinetic Analysis of the Aminolysis of Thiolactones. J Org Chem 2015; 80:8520-9. [DOI: 10.1021/acs.joc.5b01446] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gilles B. Desmet
- Laboratory
for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Gent, Belgium
| | - Dagmar R. D’hooge
- Laboratory
for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Gent, Belgium
| | - Maarten K. Sabbe
- Laboratory
for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Gent, Belgium
| | - Guy B. Marin
- Laboratory
for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Gent, Belgium
| | - Filip E. Du Prez
- Polymer
Chemistry Research Group, Ghent University, Krijgslaan 281 S4-bis, B-9000 Gent, Belgium
| | - Pieter Espeel
- Polymer
Chemistry Research Group, Ghent University, Krijgslaan 281 S4-bis, B-9000 Gent, Belgium
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32
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Graphene/tri-block copolymer composites prepared via RAFT polymerizations for dual controlled drug delivery via pH stimulation and biodegradation. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.02.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Gok O, Kosif I, Dispinar T, Gevrek TN, Sanyal R, Sanyal A. Design and Synthesis of Water-Soluble Multifunctionalizable Thiol-Reactive Polymeric Supports for Cellular Targeting. Bioconjug Chem 2015; 26:1550-60. [PMID: 26030527 DOI: 10.1021/acs.bioconjchem.5b00182] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Design and synthesis of novel water-soluble polymers bearing reactive side chains are actively pursued due to their increasing demand in areas such as bioconjugation and drug delivery. This study reports the fabrication of poly(ethylene glycol) methacrylate based thiol-reactive water-soluble polymeric supports that can serve as targeted drug delivery vehicles. Thiol-reactive maleimide units were incorporated into polymers as side chains by use of a furan-protected maleimide containing monomer. Atom transfer radical polymerization (ATRP) was employed to obtain a family of well-defined copolymers with narrow molecular weight distributions. After the polymerization, the maleimide groups were activated to their reactive form, ready for conjugation with thiol-containing molecules. Efficient functionalization of the maleimide moieties was demonstrated by conjugation of a tripeptide glutathione under mild and reagent-free aqueous conditions. Additionally, hydrophobic thiol-containing dye (Bodipy-SH) and a cyclic peptide-based targeting group (cRGDfC) were sequentially appended onto the maleimide bearing polymers to demonstrate their efficient multifunctionalization. The conjugates were utilized for in vitro experiments over both cancerous and healthy breast cell lines. Obtained results demonstrate that the conjugates were nontoxic, and displayed efficient cellular uptake. The presence of the peptide based targeting group had a clear effect on increasing the uptake of the dye-conjugated polymers into cells when compared to the construct devoid of the peptide. Overall, the facile synthesis and highly efficient multifunctionalization of maleimide-containing thiol-reactive copolymers offer a novel and attractive class of polyethylene glycol-based water-soluble supports for drug delivery.
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Affiliation(s)
- Ozgul Gok
- Department of Chemistry, Bogazici University, Bebek 34342, Istanbul, Turkey
| | - Irem Kosif
- Department of Chemistry, Bogazici University, Bebek 34342, Istanbul, Turkey
| | - Tugba Dispinar
- Department of Chemistry, Bogazici University, Bebek 34342, Istanbul, Turkey
| | - Tugce Nihal Gevrek
- Department of Chemistry, Bogazici University, Bebek 34342, Istanbul, Turkey
| | - Rana Sanyal
- Department of Chemistry, Bogazici University, Bebek 34342, Istanbul, Turkey
| | - Amitav Sanyal
- Department of Chemistry, Bogazici University, Bebek 34342, Istanbul, Turkey
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Facile construction of dual-bioresponsive biodegradable micelles with superior extracellular stability and activated intracellular drug release. J Control Release 2015; 210:125-33. [PMID: 25987525 DOI: 10.1016/j.jconrel.2015.05.273] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2015] [Revised: 05/13/2015] [Accepted: 05/13/2015] [Indexed: 11/21/2022]
Abstract
It is still a major challenge for targeted cancer chemotherapy to design stable biodegradable micellar drug delivery systems which show a rapid and complete intracellular drug release. Here, reversibly core-crosslinked pH-responsive biodegradable micelles were developed based on poly(ethylene glycol)-poly(2,4,6-trimethoxybenzylidene-pentaerythritol carbonate-co-pyridyl disulfide carbonate) [PEG-P(TMBPEC-co-PDSC)] copolymers and investigated for intracellular doxorubicin (DOX) release. PEG-P(TMBPEC-co-PDSC) copolymers formed micelles with a small size of 58.6nm were readily crosslinked by the addition of dithiothreitol (DTT). Notably, in vitro release studies showed that under physiological conditions only ca. 19.9% of DOX was released from the reversibly crosslinked micelles in 24h at a low micelle concentration of 40μg/mL. The release of DOX was accelerated at pH5.0 or in the presence of 10mM glutathione (GSH) at pH7.4, in which 64.2% and 44.1% of DOX was released, respectively, in 24h. The drug release was further boosted at pH5.0 and 10mM GSH, with 98.8% of DOX released in 12h. Moreover, DOX release was also facilitated by a 4h incubation at pH5.0 followed by incubation at pH7.4 with 10mM GSH. Confocal microscopy indicated that DOX was delivered and released into the nuclei of RAW 264.7 cells following a 12h incubation with DOX-loaded reversibly crosslinked micelles. MTT assays revealed that DOX-loaded reversibly crosslinked micelles had much higher antitumor activity than irreversibly crosslinked controls, with low IC50 values of 1.65 and 1.14μg/mL for HeLa and RAW 264.7 cells, respectively, following a 48h incubation. The blank crosslinked micelles had a low cytotoxicity of up to a concentration of 0.8mg/mL. These reversibly crosslinked pH-sensitive biodegradable micelles with superior extracellular stability but activated intracellular drug release provide a novel platform for tumor-targeting drug delivery.
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35
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Darvishmanesh S, Qian X, Wickramasinghe SR. Responsive membranes for advanced separations. Curr Opin Chem Eng 2015. [DOI: 10.1016/j.coche.2015.04.002] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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36
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Shanmugam S, Xu J, Boyer C. Utilizing the electron transfer mechanism of chlorophyll a under light for controlled radical polymerization. Chem Sci 2015; 6:1341-1349. [PMID: 29560221 PMCID: PMC5811133 DOI: 10.1039/c4sc03342f] [Citation(s) in RCA: 187] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 11/27/2014] [Indexed: 12/23/2022] Open
Abstract
Efficient photoredox catalysts containing transition metals, such as iridium and ruthenium, to initiate organic reactions and polymerization under visible light have recently emerged. However, these catalysts are composed of rare metals, which limit their applications. In this study, we report an efficient photoinduced living radical polymerization process that involves the use of chlorophyll as the photoredox biocatalyst. We demonstrate that chlorophyll a (the most abundant chlorophyll in plants) can activate a photoinduced electron transfer (PET) process that initiates a reversible addition-fragmentation chain transfer (RAFT) polymerization under blue and red LED light (λmax = 461 and 635 nm, respectively). This process controls a wide range of functional and non-functional monomers, and offers excellent control over molecular weights and polydispersities. The end group fidelity was demonstrated by NMR, UV-vis spectroscopy, and successful chain extensions for the preparation of diblock copolymers.
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Affiliation(s)
- Sivaprakash Shanmugam
- Centre for Advanced Macromolecular Design and Australian Centre for NanoMedicine , School of Chemical Engineering , The University of New South Wales , Sydney , NSW 2052 , Australia . ;
| | - Jiangtao Xu
- Centre for Advanced Macromolecular Design and Australian Centre for NanoMedicine , School of Chemical Engineering , The University of New South Wales , Sydney , NSW 2052 , Australia . ;
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design and Australian Centre for NanoMedicine , School of Chemical Engineering , The University of New South Wales , Sydney , NSW 2052 , Australia . ;
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37
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Espeel P, Du Prez FE. One-pot multi-step reactions based on thiolactone chemistry: A powerful synthetic tool in polymer science. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2014.07.008] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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38
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Chen D, Wu D, Cheng G, Zhao H. Reductant-triggered rapid self-gelation and biological functionalization of hydrogels. Polym Chem 2015. [DOI: 10.1039/c5py01299f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rapid exchange reaction between thiols and pyridyl disulfide groups on polyacrylamide was used in the synthesis and biological modification of hydrogels.
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Affiliation(s)
- Dawei Chen
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- College of Chemistry
- Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300071
| | - Dongxia Wu
- The Institute of Seawater Desalination and Multipurpose Utilization
- SOA
- Tianjin 300192
- China
| | - Guochen Cheng
- The Institute of Seawater Desalination and Multipurpose Utilization
- SOA
- Tianjin 300192
- China
| | - Hanying Zhao
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- College of Chemistry
- Nankai University; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300071
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39
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Chen T, Xu W, Huang Z, Peng H, Ke Z, Lu X, Yan Y, Liu R. Poly(phenyleneethynylene) nanoparticles: preparation, living cell imaging and potential application as drug carriers. J Mater Chem B 2015; 3:3564-3572. [PMID: 32262241 DOI: 10.1039/c5tb00064e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel PPE nanoparticles self-assembled from amphiphilic poly(phenyleneethynylenes) would be a promising drug delivery system for therapeutic delivery and/or bioimaging.
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Affiliation(s)
- Tong Chen
- Department of Urology
- Nan Fang Hospital
- Southern Medical University
- Guangzhou 510515
- China
| | - Wanfu Xu
- Department of Cell Biology
- School of Basic Medical Sciences
- Southern Medical University
- Guangzhou 510515
- China
| | - Zehai Huang
- Department of Urology
- Nan Fang Hospital
- Southern Medical University
- Guangzhou 510515
- China
| | - Hongmei Peng
- Department of Urology
- Nan Fang Hospital
- Southern Medical University
- Guangzhou 510515
- China
| | - Zhiyong Ke
- Department of Cell Biology
- School of Basic Medical Sciences
- Southern Medical University
- Guangzhou 510515
- China
| | - Xinwei Lu
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- China
| | - Yichen Yan
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- China
| | - Ruiyuan Liu
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515
- China
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40
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Liu L, Wu L, Tan J, Wang L, Liu Q, Liu P, Liu L. “Reduction” responsive thymine-conjugated biodynamers: synthesis and solution properties. Polym Chem 2015. [DOI: 10.1039/c5py00200a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Nucleobase-conjugated biodynamers are generated by RAFT polymerization and the transthioesterification reaction. The biodynamers containing thioester linkages demonstrate GSH-responsive feature, and can interact with melamine and ATP in water.
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Affiliation(s)
- Lingzhi Liu
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Libin Wu
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Junyan Tan
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Lin Wang
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Qing Liu
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Pingwei Liu
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Li Liu
- Key Laboratory of Functional Polymer Materials
- Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
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41
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42
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Sun L, Liu J, Zhao H. Reactive polymeric micelles with disulfide groups in the coronae. Polym Chem 2014. [DOI: 10.1039/c4py00938j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Le Neindre M, Nicolaÿ R. Polythiol copolymers with precise architectures: a platform for functional materials. Polym Chem 2014. [DOI: 10.1039/c4py00293h] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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44
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Chen H, Zou H, Paholak HJ, Ito M, Qian W, Che Y, Sun D. Thiol-reactive amphiphilic block copolymer for coating gold nanoparticles with neutral and functionable surfaces. Polym Chem 2014; 5:2768-2773. [PMID: 24729795 PMCID: PMC3979584 DOI: 10.1039/c3py01652h] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Nanoparticles designed for biomedical applications are often coated with polymers containing reactive functional groups, such as -COOH and -NH2, to conjugate targeting ligands or drugs. However, introducing highly charged surfaces promotes binding of the nanoparticles to biomolecules in biological systems through ionic interactions, causing the nanoparticles to aggregate in biological environments and consequently undergo strong non-specific binding to off-target cells and tissues. Developing a unique polymer with neutral surfaces that can be further functionalized directly would be critical to develop suitable nanomaterials for nanomedicine. Here, we report a thiol-reactive amphiphilic block copolymer poly(ethylene oxide)-block-poly(pyridyldisulfide ethylmeth acrylate) (PEO-b-PPDSM) for coating gold nanoparticles (AuNPs). The resultant polymer-coated AuNPs have almost neutral surfaces with slightly negative zeta potentials from -10 to 0 mV over a wide pH range from 2 to 12. Although the zeta potential is close to zero we show that the PEO-b-PPDSM copolymer-coated AuNPs have both good stability in various physiological conditions and reduced non-specific adsorption of proteins/biomolecules. Because of the multiple pyridyldisulfide groups on the PPDSM block, these individually dispersed nanocomplexes with an overall hydrodynamic size around 43.8 nm can be directly functionalized via disulfide-thiol exchange chemistry.
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Affiliation(s)
- Hongwei Chen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109
| | - Hao Zou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109
- Department of Pharmaceutical Sciences, College of Pharmacy, Second Military Medical University, 325 Guo He Road, Shanghai 200433, PR China
| | - Hayley J. Paholak
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109
| | - Masayuki Ito
- IMRA America, Inc. 1044 Woodridge Avenue, Ann Arbor, Michigan 48105
| | - Wei Qian
- IMRA America, Inc. 1044 Woodridge Avenue, Ann Arbor, Michigan 48105
| | - Yong Che
- IMRA America, Inc. 1044 Woodridge Avenue, Ann Arbor, Michigan 48105
| | - Duxin Sun
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, Michigan 48109
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45
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Chang CC, Emrick T. Functional Polyolefins Containing Disulfide and Phosphoester Groups: Synthesis and Orthogonal Degradation. Macromolecules 2014. [DOI: 10.1021/ma500121a] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Chia-Chih Chang
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Todd Emrick
- Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States
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46
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He X, Ding M, Li J, Tan H, Fu Q, Li L. Biodegradable multiblock polyurethane micelles with tunable reduction-sensitivity for on-demand intracellular drug delivery. RSC Adv 2014. [DOI: 10.1039/c4ra01478b] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Biodegradable polyurethanes bearing varied amounts of disulfide linkages in the backbone can rapidly enter tumor cells and efficiently transport the encapsulated payloads into cytosol, resulting in controlled inhibition effects against cancer cells. The nanocarriers are promising candidates for on-demand intracellular drug delivery applications.
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Affiliation(s)
- Xueling He
- Institute of Biomedical Engineering
- West China School of Preclinical and Forensic Medicine
- Sichuan University
- Chengdu, China
| | - Mingming Ding
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, China
| | - Jiehua Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, China
| | - Hong Tan
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, China
| | - Qiang Fu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, China
| | - Liang Li
- Institute of Biomedical Engineering
- West China School of Preclinical and Forensic Medicine
- Sichuan University
- Chengdu, China
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47
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Liras M, Quijada-Garrido I, Palacios-Cuesta M, Muñoz-Durieux S, García O. Acetyl protected thiol methacrylic polymers as effective ligands to keep quantum dots in luminescent standby mode. Polym Chem 2014. [DOI: 10.1039/c3py00987d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Le Neindre M, Nicolaÿ R. One-pot deprotection and functionalization of polythiol copolymers via six different thiol-X reactions. POLYM INT 2013. [DOI: 10.1002/pi.4665] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Morgane Le Neindre
- Matière Molle et Chimie (ESPCI-CNRS, UMR 7167); ESPCI ParisTech; 10 rue Vauquelin 75005 Paris France
| | - Renaud Nicolaÿ
- Matière Molle et Chimie (ESPCI-CNRS, UMR 7167); ESPCI ParisTech; 10 rue Vauquelin 75005 Paris France
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49
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Reactive and stimuli-responsive maleic anhydride containing macromers – multi-functional cross-linkers and building blocks for hydrogel fabrication. REACT FUNCT POLYM 2013. [DOI: 10.1016/j.reactfunctpolym.2013.08.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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50
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Rasmussen KF, Smith AAA, Ruiz-Sanchis P, Edlund K, Zelikin AN. Cholesterol modification of (Bio)polymers using UV-Vis traceable chemistry in aqueous solutions. Macromol Biosci 2013; 14:33-44. [PMID: 24106046 DOI: 10.1002/mabi.201300286] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 08/06/2012] [Indexed: 01/03/2023]
Abstract
Cholesterol modification of synthetic and biological polymers is achieved using of thiocholesterol (TC) and thiol-disulfide exchange. TC is reacted with Ellman's reagent to produce a mixed disulfide (TC-ER) which is activated towards thiol-disulfide exchange. TC-ER is used to obtain an inclusion complex with methyl-β-cyclodextrin, which is then employed to achieve cholesterol functionalization of a model peptide, synthetic polymers, and physical hydrogels based on poly(vinyl alcohol). It is anticipated that the established techniques will significantly broaden the use of cholesterol in bio- and nanotechnology and specifically biomedicine.
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Affiliation(s)
- Kasper F Rasmussen
- Department of Chemistry, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
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