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Grams RJ, Santos WL, Scorei IR, Abad-García A, Rosenblum CA, Bita A, Cerecetto H, Viñas C, Soriano-Ursúa MA. The Rise of Boron-Containing Compounds: Advancements in Synthesis, Medicinal Chemistry, and Emerging Pharmacology. Chem Rev 2024; 124:2441-2511. [PMID: 38382032 DOI: 10.1021/acs.chemrev.3c00663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Boron-containing compounds (BCC) have emerged as important pharmacophores. To date, five BCC drugs (including boronic acids and boroles) have been approved by the FDA for the treatment of cancer, infections, and atopic dermatitis, while some natural BCC are included in dietary supplements. Boron's Lewis acidity facilitates a mechanism of action via formation of reversible covalent bonds within the active site of target proteins. Boron has also been employed in the development of fluorophores, such as BODIPY for imaging, and in carboranes that are potential neutron capture therapy agents as well as novel agents in diagnostics and therapy. The utility of natural and synthetic BCC has become multifaceted, and the breadth of their applications continues to expand. This review covers the many uses and targets of boron in medicinal chemistry.
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Affiliation(s)
- R Justin Grams
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 900 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - Webster L Santos
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 900 West Campus Drive, Blacksburg, Virginia 24061, United States
| | | | - Antonio Abad-García
- Academia de Fisiología y Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, 11340 Mexico City, Mexico
| | - Carol Ann Rosenblum
- Department of Chemistry and Virginia Tech Center for Drug Discovery, Virginia Tech, 900 West Campus Drive, Blacksburg, Virginia 24061, United States
| | - Andrei Bita
- Department of Pharmacognosy & Phytotherapy, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, 2 Petru Rareş Street, 200349 Craiova, Romania
| | - Hugo Cerecetto
- Centro de Investigaciones Nucleares, Facultad de Ciencias, Universidad de la República, Mataojo 2055, 11400 Montevideo, Uruguay
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - Marvin A Soriano-Ursúa
- Academia de Fisiología y Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, 11340 Mexico City, Mexico
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2
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Morariu S. Advances in the Design of Phenylboronic Acid-Based Glucose-Sensitive Hydrogels. Polymers (Basel) 2023; 15:polym15030582. [PMID: 36771883 PMCID: PMC9919422 DOI: 10.3390/polym15030582] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/12/2023] [Accepted: 01/21/2023] [Indexed: 01/24/2023] Open
Abstract
Diabetes, characterized by an uncontrolled blood glucose level, is the main cause of blindness, heart attack, stroke, and lower limb amputation. Glucose-sensitive hydrogels able to release hypoglycemic drugs (such as insulin) as a response to the increase of the glucose level are of interest for researchers, considering the large number of diabetes patients in the world (537 million in 2021, reported by the International Diabetes Federation). Considering the current growth, it is estimated that, up to 2045, the number of people with diabetes will increase to 783 million. The present work reviews the recent developments on the hydrogels based on phenylboronic acid and its derivatives, with sensitivity to glucose, which can be suitable candidates for the design of insulin delivery systems. After a brief presentation of the dynamic covalent bonds, the design of glucose-responsive hydrogels, the mechanism by which the hypoglycemic drug release is achieved, and their self-healing capacity are presented and discussed. Finally, the conclusions and the main aspects that should be addressed in future research are shown.
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Affiliation(s)
- Simona Morariu
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania
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3
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Wang C, Guo Z, Wang C, Liu W, Yang X, Huo H, Cai Y, Geng Z, Su Z. High-performance self-healing composite ultrafiltration membrane based on multiple molecular dynamic interactions. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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4
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Dhiraj HS, Ishizuka F, Elshaer A, Zetterlund PB, Aldabbagh F. RAFT dispersion polymerization induced self-assembly (PISA) of boronic acid-substituted acrylamides. Polym Chem 2022. [DOI: 10.1039/d2py00530a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
For the unprotected monomer, the boroxine core of nanoparticles allows transitions to higher order morphologies, while worms and vesicles are yielded directly from PISA of the pinacol ester-protected monomer.
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Affiliation(s)
- Harpal S. Dhiraj
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames, KT1 2EE, UK
| | - Fumi Ishizuka
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Amr Elshaer
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames, KT1 2EE, UK
| | - Per B. Zetterlund
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia
| | - Fawaz Aldabbagh
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry, Kingston University, Penrhyn Road, Kingston upon Thames, KT1 2EE, UK
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5
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Li H, Zhou R, He J, Zhang M, Liu J, Sun X, Ni P. Glucose-Sensitive Core-Cross-Linked Nanoparticles Constructed with Polyphosphoester Diblock Copolymer for Controlling Insulin Delivery. Bioconjug Chem 2021; 32:2095-2107. [PMID: 34469130 DOI: 10.1021/acs.bioconjchem.1c00390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This work aims to construct biocompatible, biodegradable core-cross-linked and insulin-loaded nanoparticles which are sensitive to glucose and release insulin via cleavage of the nanoparticles in a high-concentration blood glucose environment. First, a polyphosphoester-based diblock copolymer (PBYP-g-Gluc)-b-PEEP was prepared via ring-opening copolymerization (ROP) and the copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) in which PBYP and PEEP represent the polymer segments from 2-(but-3-yn-1-yloxy)-2-oxo-1,3,2-dioxaphospholane and 2-ethoxy-2-oxo-1,3,2-dioxaphospholane, respectively, and Gluc comes from 2-azidoethyl-β-d-glucopyranoside (Gluc-N3) that grafted with PBYP. The structure and molecular weight of the copolymer were characterized by 1H NMR, 31P NMR, GPC, FT-IR, and UV-vis measurements. The amphiphilic copolymer could self-assemble into core-shell uncore-cross-linked nanoparticles (UCCL NPs) in aqueous solutions and form core-cross-linked nanoparticles (CCL NPs) after adding cross-linking agent adipoylamidophenylboronic acid (AAPBA). Dynamic light scattering (DLS) and transmission electron microscopy (TEM) were used to study the self-assembly behavior of the two kinds of NPs and the effect of different Gluc group contents on the size of NPs further to verify the stability and glucose sensitivity of CCL NPs. The ability of NPs to load fluorescein isothiocyanate-labeled insulin (FITC-insulin) and their glucose-triggered release behavior were detected by a fluorescence spectrophotometer. The results of methyl thiazolyl tetrazolium (MTT) assay and hemolysis activity experiments showed that the CCL NPs had good biocompatibility. An in vivo hypoglycemic study has shown that FITC-insulin-loaded CCL NPs could reduce blood glucose and have a protective effect on hypoglycemia. This research provides a new method for constructing biodegradable and glucose-sensitive core-cross-linked nanomedicine carriers for controlled insulin release.
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Affiliation(s)
- Hongping Li
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China
| | - Ru Zhou
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China
| | - Jinlin He
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China
| | - Mingzu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China
| | - Jian Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou 215123, P. R. China
| | - Xingwei Sun
- Intervention Department, The Second Affiliated Hospital of Soochow University, Suzhou 215004, P. R. China
| | - Peihong Ni
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China
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6
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7
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Zhong Y, Song B, He D, Xia Z, Wang P, Wu J, Li Y. Galactose-based polymer-containing phenylboronic acid as carriers for insulin delivery. NANOTECHNOLOGY 2020; 31:395601. [PMID: 32554896 DOI: 10.1088/1361-6528/ab9e26] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The galactose-based polymer is a promising drug delivery material. Herein, a new galactose-based block copolymer, termed as 6-O-vinyl sebacic acid-D-galactopyranosyl ester block 3-acrylamide phenylboric acid p(OVNG-b-AAPBA) was successfully synthesized by 'block copolymer' method. The structure of p(OVNG-b-AAPBA) was proved by nuclear magnetic hydrogen spectrum (1 HNMR) and infrared (IR), the thermal stability was observed by thermogravimetric analyzer, and the molecular weights (Mw and Mn) were demonstrated by Gel permeation chromatography (GPC). The above test results suggested that the polymer of p(OVNG-b-AAPBA) was successfully synthesized, and it had optimal molecular weight and thermal stability, which could be used for investigating the drug delivery system. Then, this block copolymer was prepared to the nanoparticle (NP), these NPs had a satisfactory morphology, and their safety was verified by MTT and chronic animal toxicology test. In addition, insulin was encapsulated by the p(OVNG-b-AAPBA) NPs, the drug loading rate and encapsulation efficiency increased with that of AAPBA in the polymer. Finally, this study confirmed that these NPs can effectively maintain the blood sugar of diabetic mice at 96 h. In conclusion, the current study suggested that the insulin-loaded galactose-based polymer-block-3-acrylamide phenylboric acid NPs had slow-release/glucose-responsive drug release performance, which might play an active role in the diabetes therapy.
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Affiliation(s)
- Yunhua Zhong
- Department of Geratology, The First People's Hospital of Yunnan Province, Kunming University of Science and Technology, Kunming 650032, People's Republic of China
| | - Bo Song
- School of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, People's Republic of China
| | - Dan He
- School of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, People's Republic of China
| | - Zemei Xia
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, People's Republic of China
| | - Peng Wang
- School of Clinical Medicine, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, People's Republic of China
| | - Junzi Wu
- Department of Geratology, The First People's Hospital of Yunnan Province, Kunming University of Science and Technology, Kunming 650032, People's Republic of China
- School of Basic Medical, Yunnan University of Chinese Medicine, Kunming, Yunnan 650500, People's Republic of China
| | - Yan Li
- Department of Geratology, The First People's Hospital of Yunnan Province, Kunming University of Science and Technology, Kunming 650032, People's Republic of China
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8
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Jia L, Kilbey SM, Wang X. Tailoring Azlactone-Based Block Copolymers for Stimuli-Responsive Disassembly of Nanocarriers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:10200-10209. [PMID: 32787052 DOI: 10.1021/acs.langmuir.0c01681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Stimuli-responsive nanoparticles based on a reactive block copolymers (BCPs) of poly(ethylene glycol)-b-poly(2-vinyl-4,4-dimethylazlactone) (PEG-b-PVDMA) have been fabricated for loading and controlled release of molecular cargoes. Microphase segregation of PEG-b-PVDMA BCPs enables the construction of well-defined nanoparticles in aqueous solutions. The azlactone groups in VDMA repeat units offer active sites for hydrophilization of the BCPs and functionalization by primary amines. The hydrophilization of PEG-b-PVDMA BCPs induces gradual reconstruction and dissociation of the BCP nanoparticles. Functional primary amines can be conjugated to PEG-b-PVDMA BCPs, yielding azobenzene- and pyridine-containing BCPs. The self-assembled nanoparticles made from the functionalized BCPs can disassemble in response to different external stimuli (e.g., addition of β-cyclodextrin and pH changes). The gradual reconstruction of functionalized PEG-b-PVDMA BCP nanoparticles caused by hydrolysis of residual azlactone groups provides a novel method to engineer sub-50 nm, well-dispersed, stimuli-responsive nanoparticles. These nanoparticles can incorporate molecular cargoes and release them upon external stimuli, making the azlactone-containing BCPs attractive platforms for the development of controlled delivery vehicles.
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Affiliation(s)
- Liangying Jia
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - S Michael Kilbey
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Xu Wang
- National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
- Shenzhen Research Institute of Shandong University, Shenzhen, Guangdong 518057, China
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9
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Li H, He J, Zhang M, Liu J, Ni P. Glucose-Sensitive Polyphosphoester Diblock Copolymer for an Insulin Delivery System. ACS Biomater Sci Eng 2020; 6:1553-1564. [DOI: 10.1021/acsbiomaterials.9b01817] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hongping Li
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China
| | - Jinlin He
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China
| | - Mingzu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China
| | - Jian Liu
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou 215123, P. R. China
| | - Peihong Ni
- College of Chemistry, Chemical Engineering and Materials Science, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Soochow University, Suzhou 215123, P. R. China
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10
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Pan R, Zeng Y, Liu G, Wei Y, Xu Y, Tao L. Curcumin–polymer conjugates with dynamic boronic acid ester linkages for selective killing of cancer cells. Polym Chem 2020. [DOI: 10.1039/c9py01596e] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A phenylboronic acid (PBA)-containing copolymer was synthesized via the Hantzsch reaction and radical polymerization. Curcumin was dynamically included in this PBA-containing polymer to selectively kill cancer cells.
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Affiliation(s)
- Ruihao Pan
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P.R. China
| | - Yuan Zeng
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P.R. China
| | - Guoqiang Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P.R. China
| | - Yen Wei
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P.R. China
| | - Yanshuang Xu
- China Research Institute for Science and Popularization
- Beijing 100081
- P.R. China
| | - Lei Tao
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P.R. China
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11
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Busatto N, Keddie JL, Roth PJ. Sphere-to-worm morphological transitions and size changes through thiol–para-fluoro core modification of PISA-made nano-objects. Polym Chem 2020. [DOI: 10.1039/c9py01585j] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Spherical diblock copolymer nanoparticles became larger spheres, unimers, or worm-shaped particles when functionalised via thiol–para-fluoro substitution in the core.
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Affiliation(s)
| | | | - Peter J. Roth
- Department of Chemistry
- University of Surrey
- Guildford
- UK
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12
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Baraniak MK, Lalancette RA, Jäkle F. Electron‐Deficient Borinic Acid Polymers: Synthesis, Supramolecular Assembly, and Examination as Catalysts in Amide Bond Formation. Chemistry 2019; 25:13799-13810. [DOI: 10.1002/chem.201903196] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/10/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Monika K. Baraniak
- Department of ChemistryRutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Roger A. Lalancette
- Department of ChemistryRutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Frieder Jäkle
- Department of ChemistryRutgers University-Newark 73 Warren Street Newark NJ 07102 USA
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13
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Synthesis of ferrocene boronic acid-based block copolymers via RAFT polymerization and their micellization, redox responsive and glucose sensing properties. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2017.05.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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14
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Gaballa H, Theato P. Glucose-Responsive Polymeric Micelles via Boronic Acid–Diol Complexation for Insulin Delivery at Neutral pH. Biomacromolecules 2019; 20:871-881. [DOI: 10.1021/acs.biomac.8b01508] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Heba Gaballa
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, D-20146 Hamburg, Germany
| | - Patrick Theato
- Institute for Technical and Macromolecular Chemistry, University of Hamburg, Bundesstrasse 45, D-20146 Hamburg, Germany
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology (KIT), Engesser Strasse. 18, D-76131 Karlsruhe, Germany
- Soft Matter Synthesis Laboratory, Institute for Biological Interfaces III, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
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15
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Brooks WLA, Deng CC, Sumerlin BS. Structure-Reactivity Relationships in Boronic Acid-Diol Complexation. ACS OMEGA 2018; 3:17863-17870. [PMID: 31458380 PMCID: PMC6644144 DOI: 10.1021/acsomega.8b02999] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/06/2018] [Indexed: 06/01/2023]
Abstract
Boronic acids have found widespread use in the field of biomaterials, primarily through their ability to bind with biologically relevant 1,2- and 1,3-diols, including saccharides and peptidoglycans, or with polyols to prepare hydrogels with dynamic covalent or responsive behavior. Despite a wide range of boronic acid architectures that have been previously considered, there is a need for greater understanding of the structure-reactivity relationships that govern binding affinity to diols. In this study, various boronic acids and other organoboron compounds were investigated to determine their pK a and their binding constants with the biologically relevant diols including sorbitol, fructose, and glucose. Boronic acid pK a values were determined through spectroscopic titration, whereas binding constants were determined by fluorescence spectroscopy during competitive binding studies. Key structure-reactivity relationships clearly indicated that both boronic acid structure and solution pH must be carefully considered. By considering a variety of boronic acids with systematically varied electronics and sterics, these results provide guidance during selection of organoboron compounds in sensing, delivery, and materials chemistry.
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Affiliation(s)
- William L. A. Brooks
- George & Josephine Butler
Polymer Research Laboratory, Center for Macromolecular Science &
Engineering, Department of Chemistry, University
of Florida, Gainesville, Florida 32611-7200, United States
| | - Christopher C. Deng
- George & Josephine Butler
Polymer Research Laboratory, Center for Macromolecular Science &
Engineering, Department of Chemistry, University
of Florida, Gainesville, Florida 32611-7200, United States
| | - Brent S. Sumerlin
- George & Josephine Butler
Polymer Research Laboratory, Center for Macromolecular Science &
Engineering, Department of Chemistry, University
of Florida, Gainesville, Florida 32611-7200, United States
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16
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Gaballa H, Shang J, Meier S, Theato P. The glucose‐responsive behavior of a block copolymer featuring boronic acid and glycine. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.29226] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Heba Gaballa
- Institute for Technical and Macromolecular ChemistryUniversity of Hamburg, Bundesstrasse 45 D‐20146 Hamburg Germany
| | - Jiaojiao Shang
- Institute for Technical and Macromolecular ChemistryUniversity of Hamburg, Bundesstrasse 45 D‐20146 Hamburg Germany
| | - Sabrina Meier
- Institute for Technical and Macromolecular ChemistryUniversity of Hamburg, Bundesstrasse 45 D‐20146 Hamburg Germany
| | - Patrick Theato
- Institute for Technical and Macromolecular ChemistryUniversity of Hamburg, Bundesstrasse 45 D‐20146 Hamburg Germany
- Institute for Chemical Technology and Polymer ChemistryKarlsruhe Institute of Technology (KIT) Engesser Strasse. 18, D‐76131 Karlsruhe Germany
- Soft Matter Synthesis LaboratoryInstitute for Biological Interfaces III, Karlsruhe Institute of Technology (KIT), Herrmann‐von‐Helmholtz‐Platz 1 D‐76344 Eggenstein‐Leopoldshafen Germany
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17
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Guo H, Liu P, Li H, Cheng C, Gao Y. Responsive Emulsions Stabilized by Amphiphilic Supramolecular Graft Copolymers Formed in Situ at the Oil-Water Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:5750-5758. [PMID: 29738255 DOI: 10.1021/acs.langmuir.8b00476] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Amphiphilic supramolecular graft copolymers which can stabilize oil-in-water (o/w) emulsions and enable responsive demulsification were demonstrated in this study. Linear poly[( N, N-dimethylacrylmide)- stat-(3-acrylamidophenylboronic acid)] (PDMA- stat-PAPBA) copolymers with phenylboronic acid (PBA) groups and linear polystyrene homopolymers with cis-diol terminals (PS(OH)2) were synthesized by reversible addition-fragmentation chain transfer polymerization. By the homogenization of the biphasic mixtures of an alkaline water solution of PDMA- stat-PAPBA copolymer and a toluene solution of PS(OH)2 homopolymer, stable o/w emulsions could be generated, although neither PDMA- stat-PAPBA nor PS(OH)2 alone was able to stabilize the emulsion. It was verified that the dispersed oil droplets in the emulsions were stabilized by the amphiphilic PDMA- stat-PAPBA- g-PS supramolecular graft copolymers, which were formed in situ at the oil-water interface by the complexation between the lateral PBA groups of PDMA- stat-PAPBA and the diol terminals of PS(OH)2 during homogenization. These emulsions showed pH- and glucose-responsive demulsification because of the reversible B-O bonds between the PDMA- stat-PAPBA backbones and the PS side chains. The effects of polymer concentrations on emulsion formation were also investigated. The current study provides an alternative method for the facile preparation of responsive polymeric emulsifiers, which potentially may be extended to other polymer pairs containing PBA and cis-diol groups.
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Affiliation(s)
| | | | | | - Chong Cheng
- 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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Zhao L, Xiao C, Wang L, Gai G, Ding J. Glucose-sensitive polymer nanoparticles for self-regulated drug delivery. Chem Commun (Camb) 2018; 52:7633-52. [PMID: 27194104 DOI: 10.1039/c6cc02202b] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Glucose-sensitive drug delivery systems, which can continuously and automatically regulate drug release based on the concentration of glucose, have attracted much interest in recent years. Self-regulated drug delivery platforms have potential application in diabetes treatment to reduce the intervention and improve the quality of life for patients. At present, there are three types of glucose-sensitive drug delivery systems based on glucose oxidase (GOD), concanavalin A (Con A), and phenylboronic acid (PBA) respectively. This review covers the recent advances in GOD-, Con A-, or PBA-mediated glucose-sensitive nanoscale drug delivery systems, and provides their major challenges and opportunities.
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Affiliation(s)
- Li Zhao
- Laboratory of Building Energy-Saving Technology Engineering, College of Material Science and Engineering, Jilin Jianzhu University, Changchun 130118, P. R. China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
| | - Liyan Wang
- Laboratory of Building Energy-Saving Technology Engineering, College of Material Science and Engineering, Jilin Jianzhu University, Changchun 130118, P. R. China
| | - Guangqing Gai
- Laboratory of Building Energy-Saving Technology Engineering, College of Material Science and Engineering, Jilin Jianzhu University, Changchun 130118, P. R. China
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
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19
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Cash JJ, Kubo T, Dobbins DJ, Sumerlin BS. Maximizing the symbiosis of static and dynamic bonds in self-healing boronic ester networks. Polym Chem 2018. [DOI: 10.1039/c8py00123e] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Networks that contain boronic ester crosslinks undergo dynamic bond exchange that enables self-healing behavior and reprocessing.
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Affiliation(s)
- Jessica J. Cash
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Tomohiro Kubo
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Daniel J. Dobbins
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
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20
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Gaballa H, Lin S, Shang J, Meier S, Theato P. A synthetic approach toward a pH and sugar-responsive diblock copolymer via post-polymerization modification. Polym Chem 2018. [DOI: 10.1039/c8py00660a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel pH- and sugar-responsive diblock copolymer containing phenylboronic acid was synthesized by RAFT and a post-polymerization modification strategy.
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Affiliation(s)
- Heba Gaballa
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
| | - Shaojian Lin
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
| | - Jiaojiao Shang
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
| | - Sabrina Meier
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
| | - Patrick Theato
- Institute for Technical and Macromolecular Chemistry
- University of Hamburg
- D-20146 Hamburg
- Germany
- Institute for Chemical Technology and Polymer Chemistry
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21
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Affiliation(s)
- Keda Hu
- Department of Chemistry & Chemical Biology, University of New Mexico, MSC03 2060, 1 UNM, Albuquerque, New Mexico 87131, United States
| | - Zhen Zhang
- Department of Chemistry & Chemical Biology, University of New Mexico, MSC03 2060, 1 UNM, Albuquerque, New Mexico 87131, United States
| | - James Burke
- Department of Chemistry & Chemical Biology, University of New Mexico, MSC03 2060, 1 UNM, Albuquerque, New Mexico 87131, United States
| | - Yang Qin
- Department of Chemistry & Chemical Biology, University of New Mexico, MSC03 2060, 1 UNM, Albuquerque, New Mexico 87131, United States
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22
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Sun Q, Liu G, Wu H, Xue H, Zhao Y, Wang Z, Wei Y, Wang Z, Tao L. Fluorescent Cell-Conjugation by a Multifunctional Polymer: A New Application of the Hantzsch Reaction. ACS Macro Lett 2017; 6:550-555. [PMID: 35610883 DOI: 10.1021/acsmacrolett.7b00220] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Multicomponent reactions (MCRs) can form unique structures with interesting functions, therefore, multifunctional polymers might be simply prepared using MCRs as coupling tools to simultaneously link and generate different functional groups. To verify this concept, a new fluorescent polymer containing phenylboronic acid has been facilely prepared via a one pot method by combining the Hantzsch reaction with reversible addition-fragmentation chain transfer (RAFT) polymerization. The Hantzsch-RAFT system has been found robust to smoothly achieve predesigned multifunctional polymer, which can be used for cell conjugation through the interaction between phenylboronic acid and glycoprotein on cell membrane. The conjugated cells could be directly observed due to the fluorescent Hantzsch moiety in the polymer chain, demonstrating a new application of the old Hantzsch reaction (>130 years) outside organic chemistry. Meanwhile, the conjugated cells remained excellent dispersity in the presence of coagulation protein (lectin), implying that multifunctional polymer a possible anticoagulant for cell separation. We believe that the current research paves a new way to exploit new applications of MCRs in interdisciplinary fields and might prompt the development of other multifunctional polymers based on different MCRs.
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Affiliation(s)
- Qiang Sun
- The
Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Guoqiang Liu
- The
Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Haibo Wu
- The
Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
- College
of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311400, People’s Republic of China
| | - Haodong Xue
- The
Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
- College
of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311400, People’s Republic of China
| | - Yuan Zhao
- The
Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Zilin Wang
- The
Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Yen Wei
- The
Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Zhiming Wang
- College
of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 311400, People’s Republic of China
| | - Lei Tao
- The
Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology
(Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
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23
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Brooks WLA, Vancoillie G, Kabb CP, Hoogenboom R, Sumerlin BS. Triple responsive block copolymers combining pH‐responsive, thermoresponsive, and glucose‐responsive behaviors. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28615] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- William L. A. Brooks
- George and Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of ChemistryUniversity of FloridaGainesville Florida32611‐7200
| | - Gertjan Vancoillie
- George and Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of ChemistryUniversity of FloridaGainesville Florida32611‐7200
- Department of Organic and Macromolecular ChemistryGhent UniversityKrijgslaanGhent281 S4 Belgium
| | - Christopher P. Kabb
- George and Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of ChemistryUniversity of FloridaGainesville Florida32611‐7200
| | - Richard Hoogenboom
- Department of Organic and Macromolecular ChemistryGhent UniversityKrijgslaanGhent281 S4 Belgium
| | - Brent S. Sumerlin
- George and Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science and Engineering, Department of ChemistryUniversity of FloridaGainesville Florida32611‐7200
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24
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Fandrich A, Buller J, Memczak H, Stöcklein W, Hinrichs K, Wischerhoff E, Schulz B, Laschewsky A, Lisdat F. Responsive Polymer-Electrode Interface—Study of its Thermo- and pH-Sensitivity and the Influence of Peptide Coupling. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.01.080] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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25
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Gu L, Wang Y, Han J, Wang L, Tang X, Li C, Ni L. Phenylboronic acid-functionalized core–shell magnetic composite nanoparticles as a novel protocol for selective enrichment of fructose from a fructose–glucose aqueous solution. NEW J CHEM 2017. [DOI: 10.1039/c7nj02106b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
We developed an efficient and mild method for the preparation of boronic acid-functionalized magnetic nanoparticles (MNPs), and the selective separation of fructose from a sample solution was demonstrated for the first time.
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Affiliation(s)
- Lei Gu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Yun Wang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Juan Han
- School of Food and Biological Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Lei Wang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Xu Tang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Cheng Li
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
| | - Liang Ni
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- P. R. China
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26
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Vancoillie G, Hoogenboom R. Responsive Boronic Acid-Decorated (Co)polymers: From Glucose Sensors to Autonomous Drug Delivery. SENSORS 2016; 16:s16101736. [PMID: 27775572 PMCID: PMC5087521 DOI: 10.3390/s16101736] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 10/11/2016] [Accepted: 10/13/2016] [Indexed: 01/03/2023]
Abstract
Boronic acid-containing (co)polymers have fascinated researchers for decades, garnering attention for their unique responsiveness toward 1,2- and 1,3-diols, including saccharides and nucleotides. The applications of materials that exert this property are manifold including sensing, but also self-regulated drug delivery systems through responsive membranes or micelles. In this review, some of the main applications of boronic acid containing (co)polymers are discussed focusing on the role of the boronic acid group in the response mechanism. We hope that this summary, which highlights the importance and potential of boronic acid-decorated polymeric materials, will inspire further research within this interesting field of responsive polymers and polymeric materials.
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Affiliation(s)
- Gertjan Vancoillie
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, Ghent 9000, Belgium.
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, Ghent 9000, Belgium.
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27
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Wang Y, Li Y, Han J, Tang X, Ni L, Hu X, Wang L. Synthesis of a phenylboronic acid-functionalized thermosensitive block copolymer and its application in separation and purification of vicinal-diol-containing compounds. RSC Adv 2016. [DOI: 10.1039/c6ra16327k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Phenylboronic acid-functionalized PEO20PPO60PEO20 was synthesized and used to separate ortho-hydroxyl compounds as the collector in an aqueous two-phase flotation system.
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Affiliation(s)
- Yun Wang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Yuanyuan Li
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Juan Han
- School of Food and Biological Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Xu Tang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Liang Ni
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Xiaowei Hu
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
| | - Lei Wang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang 212013
- PR China
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28
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Vancoillie G, Brooks WLA, Mees MA, Sumerlin BS, Hoogenboom R. Synthesis of novel boronic acid-decorated poly(2-oxazoline)s showing triple-stimuli responsive behavior. Polym Chem 2016. [DOI: 10.1039/c6py01437b] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of novel boronic-acid decorated poly(2-oxazoline)s showing a glucose- and pH dependent thermal transition is reported.
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Affiliation(s)
- Gertjan Vancoillie
- Supramolecular Chemistry group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
- George & Josephine Butler Polymer Research Laboratory
| | - William L. A. Brooks
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Maarten A. Mees
- Supramolecular Chemistry group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville
| | - Richard Hoogenboom
- Supramolecular Chemistry group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
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29
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Vancoillie G, Hoogenboom R. Synthesis and polymerization of boronic acid containing monomers. Polym Chem 2016. [DOI: 10.1039/c6py00775a] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This mini-review summarizes the most commonly used methods for the synthesis of phenylboronic acid-(co)polymers ranging from simple straightforward polymerization to complex post-polymerization modification.
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Affiliation(s)
- Gertjan Vancoillie
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
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30
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Guo Q, Zhang T, An J, Wu Z, Zhao Y, Dai X, Zhang X, Li C. Block versus Random Amphiphilic Glycopolymer Nanopaticles as Glucose-Responsive Vehicles. Biomacromolecules 2015; 16:3345-56. [PMID: 26397308 DOI: 10.1021/acs.biomac.5b01020] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
To explore the effect of polymer structure on their self-assembled aggregates and their unique characteristics, this study was devoted to developing a series of amphiphilic block and random phenylboronic acid-based glycopolymers by RAFT polymerization. The amphiphilic glycopolymers were successfully self-assembled into spherically shaped nanoparticles with narrow size distribution in aqueous solution. For block and random copolymers with similar monomer compositions, block copolymer nanoparticles exhibited a more regular transmittance change with the increasing glucose level, while a more evident variation of size and quicker decreasing tendency in I/I0 behavior in different glucose media were observed for random copolymer nanoparticles. Cell viability of all the polymer nanoparticles investigated by MTT assay was higher than 80%, indicating that both block and random copolymers had good cytocompatibility. Insulin could be encapsulated into both nanoparticles, and insulin release rate for random glycopolymer was slightly quicker than that for the block ones. We speculate that different chain conformations between block and random glycopolymers play an important role in self-assembled nanoaggregates and underlying glucose-sensitive behavior.
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Affiliation(s)
- Qianqian Guo
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, Nankai University , Tianjin 300071, China
| | - Tianqi Zhang
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, Nankai University , Tianjin 300071, China
| | - Jinxia An
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, Nankai University , Tianjin 300071, China
| | - Zhongming Wu
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital, Tianjin Medical University , Tianjin 300070, China
| | - Yu Zhao
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, Nankai University , Tianjin 300071, China
| | - Xiaomei Dai
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, Nankai University , Tianjin 300071, China
| | - Xinge Zhang
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, Nankai University , Tianjin 300071, China
| | - Chaoxing Li
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, Nankai University , Tianjin 300071, China
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31
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Brooks WLA, Sumerlin BS. Synthesis and Applications of Boronic Acid-Containing Polymers: From Materials to Medicine. Chem Rev 2015; 116:1375-97. [DOI: 10.1021/acs.chemrev.5b00300] [Citation(s) in RCA: 552] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- William L. A. Brooks
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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32
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Kristanti A, Batchelor R, Albuszis M, Yap J, Roth PJ. Temperature–heavy metal- and temperature–anion/molecule-responsive systems based on PEG acrylate copolymers containing dipyridyl ligands. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.01.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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33
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Zhao YN, Yuan Q, Li C, Guan Y, Zhang Y. Dynamic Layer-by-Layer Films: A Platform for Zero-Order Release. Biomacromolecules 2015; 16:2032-9. [DOI: 10.1021/acs.biomac.5b00438] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ya-nan Zhao
- State Key Laboratory of Medicinal
Chemical Biology and Key Laboratory of Functional Polymer Materials,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Qingping Yuan
- State Key Laboratory of Medicinal
Chemical Biology and Key Laboratory of Functional Polymer Materials,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Chong Li
- State Key Laboratory of Medicinal
Chemical Biology and Key Laboratory of Functional Polymer Materials,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Ying Guan
- State Key Laboratory of Medicinal
Chemical Biology and Key Laboratory of Functional Polymer Materials,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
| | - Yongjun Zhang
- State Key Laboratory of Medicinal
Chemical Biology and Key Laboratory of Functional Polymer Materials,
Institute of Polymer Chemistry, College of Chemistry, Nankai University, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300071, China
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34
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Multilayered Thin Films from Boronic Acid-Functional Poly(amido amine)s. Pharm Res 2015; 32:3066-86. [PMID: 25851410 PMCID: PMC4526598 DOI: 10.1007/s11095-015-1688-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 03/23/2015] [Indexed: 01/24/2023]
Abstract
PURPOSE To investigate the properties of phenylboronic acid-functional poly(amido amine) polymers (BA-PAA) in forming multilayered thin films with poly(vinyl alcohol) (PVA) and chondroitin sulfate (ChS), and to evaluate their compatibility with COS-7 cells. METHODS Copolymers of phenylboronic acid-functional poly(amido amine)s, differing in the content of primary amine (DAB-BA-PAA) or alcohol (ABOL-BA-PAA) side groups, were synthesized and applied in the formation of multilayers with PVA and ChS. Biocompatibility of the resulting films was evaluated through cell culture experiments with COS-7 cells grown on the films. RESULTS PVA-based multilayers were thin, reaching ~100 nm at 10 bilayers, whereas ChS-based multilayers were thick, reaching ~600 nm at the same number of bilayers. All of the multilayers are stable under physiological conditions in vitro and are responsive to reducing agents, owing to the presence of disulfide bonds in the polymers. PVA-based films were demonstrated to be responsive to glucose at physiological pH at the investigated glucose concentrations (10-100 mM). The multilayered films displayed biocompatibility in cell culture experiments, promoting attachment and proliferation of COS-7 cells. CONCLUSIONS Responsive thin films based on boronic acid functional poly(amido amine)s are promising biocompatible materials for biomedical applications, such as drug releasing surfaces on stents or implants. Graphical Abstract Layer-by-Layer Assembly.
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35
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Kang H, Su Y, He X, Zhang S, Li J, Zhang W. In situsynthesis of ABA triblock copolymer nanoparticles by seeded RAFT polymerization: Effect of the chain length of the third a block on the triblock copolymer morphology. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27620] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Haijiao Kang
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University; Beijing 100083 China
| | - Yang Su
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Institute of Polymer Chemistry, Nankai University; Tianjin 300071 China
| | - Xin He
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Institute of Polymer Chemistry, Nankai University; Tianjin 300071 China
| | - Shifeng Zhang
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University; Beijing 100083 China
| | - Jianzhang Li
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University; Beijing 100083 China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Institute of Polymer Chemistry, Nankai University; Tianjin 300071 China
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36
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Heleg-Shabtai V, Aizen R, Orbach R, Aleman-Garcia MA, Willner I. Gossypol-cross-linked boronic acid-modified hydrogels: a functional matrix for the controlled release of an anticancer drug. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:2237-2242. [PMID: 25664656 DOI: 10.1021/la504959d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Anticancer drug gossypol cross-links phenylboronic acid-modified acrylamide copolymer chains to form a hydrogel matrix. The hydrogel is dissociated in an acidic environment (pH 4.5), and its dissociation is enhanced in the presence of lactic acid (an α-hydroxy carboxylic acid) as compared to formic acid. The enhanced dissociation of the hydrogel by lactic acid is attributed to the effective separation of the boronate ester bridging groups through the formation of a stabilized complex between the boronic acid substituent and the lactic acid. Because lactic acid exists in cancer cells in elevated amounts and the cancer cells' environment is acidic, the cross-linked hydrogel represents a stimuli-responsive matrix for the controlled release of gossypol. The functionality is demonstrated and characterized by rheology and other spectroscopic means.
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Affiliation(s)
- Vered Heleg-Shabtai
- Institute of Chemistry, The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel
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37
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Deng CC, Brooks WL, Abboud KA, Sumerlin BS. Boronic Acid-Based Hydrogels Undergo Self-Healing at Neutral and Acidic pH. ACS Macro Lett 2015; 4:220-224. [PMID: 35596411 DOI: 10.1021/acsmacrolett.5b00018] [Citation(s) in RCA: 277] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This report describes the synthesis and characterization of boronate ester-cross-linked hydrogels capable of self-healing behavior at neutral and acidic pH. This atypically wide pH range over which healing behavior is observed was achieved through the use of an intramolecular coordinating boronic acid monomer, 2-acrylamidophenylboronic acid (2APBA), where the internal coordination helped to stabilize cross-links formed at acidic and neutral pH. Two different hydrogels were formed from a 2APBA copolymer cross-linked with either poly(vinyl alcohol) or a catechol-functionalized copolymer. The self-healing ability of these hydrogels was characterized through physical testing and rheological studies. Furthermore, the catechol cross-linked hydrogel was shown to be oxygen sensitive, demonstrating reduced self-healing and stress relaxation after partial oxidation. The synthesis of these hydrogels demonstrates a new strategy to produce boronic acid materials capable of self-healing at physiological pH.
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Affiliation(s)
- Christopher C. Deng
- George and Josephine Butler Polymer
Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, and ‡Department of
Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - William L.A. Brooks
- George and Josephine Butler Polymer
Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, and ‡Department of
Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Khalil A. Abboud
- George and Josephine Butler Polymer
Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, and ‡Department of
Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Brent S. Sumerlin
- George and Josephine Butler Polymer
Research Laboratory, Center for
Macromolecular Science and Engineering, Department of Chemistry, and ‡Department of
Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
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38
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Zhang H, Duan W, Lu M, Zhao X, Shklyaev S, Liu L, Huang TJ, Sen A. Self-powered glucose-responsive micropumps. ACS NANO 2014; 8:8537-42. [PMID: 25093759 DOI: 10.1021/nn503170c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
A self-powered polymeric micropump based on boronate chemistry is described. The pump is triggered by the presence of glucose in ambient conditions and induces convective fluid flows, with pumping velocity proportional to the glucose concentration. The pumping is due to buoyancy convection that originates from reaction-associated heat flux, as verified from experiments and finite difference modeling. As predicted, the fluid flow increases with increasing height of the chamber. In addition, pumping velocity is enhanced on replacing glucose with mannitol because of the enhanced exothermicity associated with the reaction of the latter.
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Affiliation(s)
- Hua Zhang
- Department of Chemistry and ‡Department of Engineering Science and Mechanics, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
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39
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Watahiki R, Sato K, Suwa K, Niina S, Egawa Y, Seki T, Anzai JI. Multilayer films composed of phenylboronic acid-modified dendrimers sensitive to glucose under physiological conditions. J Mater Chem B 2014; 2:5809-5817. [DOI: 10.1039/c4tb00676c] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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40
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Isakova A, Topham PD, Sutherland AJ. Controlled RAFT Polymerization and Zinc Binding Performance of Catechol-Inspired Homopolymers. Macromolecules 2014. [DOI: 10.1021/ma500336u] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Anna Isakova
- Chemical Engineering and
Applied Chemistry, Aston University, Birmingham B4 7ET, U.K
| | - Paul D. Topham
- Chemical Engineering and
Applied Chemistry, Aston University, Birmingham B4 7ET, U.K
| | - Andrew J. Sutherland
- Chemical Engineering and
Applied Chemistry, Aston University, Birmingham B4 7ET, U.K
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41
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Guo Q, Wu Z, Zhang X, Sun L, Li C. Phenylboronate-diol crosslinked glycopolymeric nanocarriers for insulin delivery at physiological pH. SOFT MATTER 2014; 10:911-920. [PMID: 24835766 DOI: 10.1039/c3sm52485j] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Research into polymers with glucose-sensitivity in physiological conditions has expanded recently due to their therapeutic potential in diabetes. Herein, to explore the glucose-responsive properties of a new polymer under physiological conditions, we synthesized an amphiphilic block glycopolymer based on phenylboronic acid and a carbohydrate, which was named poly(d-gluconamidoethyl methacrylate-block-3-acrylamidophenylboronic acid) (p(AAPBA-b-GAMA)). Based on the cross-linking between the diol groups of the carbohydrates and phenylboronic acid, the glycopolymers self-assembled to form nanoparticles (NPs). The glucose-sensitivity was revealed by the swelling behavior of the NPs at different glucose concentrations and was found to be dependent on the glucose level. The morphology of the NPs revealed by transmission electron microscopy showed that the NPs were spherical in shape with good dispersity. The cell viability of the NPs investigated by MTT assay was more than 90%, indicating that the glycopolymers had good cytocompatibility. Insulin could be loaded onto the glycopolymer NPs with high efficiency (up to 10%), and insulin release increased with enhancement of the glucose level in the medium. Such a glucose-responsive glycopolymer is an excellent candidate that holds great potential in the treatment of diabetes.
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Affiliation(s)
- Qianqian Guo
- Key Laboratory of Functional Polymer Materials of Ministry Education, Institute of Polymer Chemistry, Nankai University, Tianjin 300071, China.
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42
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Ma R, Shi L. Phenylboronic acid-based glucose-responsive polymeric nanoparticles: synthesis and applications in drug delivery. Polym Chem 2014. [DOI: 10.1039/c3py01202f] [Citation(s) in RCA: 201] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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43
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Krismastuti FSH, Brooks WLA, Sweetman MJ, Sumerlin BS, Voelcker NH. A photonic glucose biosensor for chronic wound prognostics. J Mater Chem B 2014; 2:3972-3983. [DOI: 10.1039/c4tb00231h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An optical biosensor based on the switching of poly(4-vinylphenylboronic acid) (PVPBA) grafted to the pores of porous silicon (pSi) films in response to pH and glucose.
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Affiliation(s)
| | - William L. A. Brooks
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville, USA
| | | | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory
- Center for Macromolecular Science & Engineering
- Department of Chemistry
- University of Florida
- Gainesville, USA
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44
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Kruss S, Hilmer AJ, Zhang J, Reuel NF, Mu B, Strano MS. Carbon nanotubes as optical biomedical sensors. Adv Drug Deliv Rev 2013; 65:1933-50. [PMID: 23906934 DOI: 10.1016/j.addr.2013.07.015] [Citation(s) in RCA: 204] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 07/16/2013] [Accepted: 07/18/2013] [Indexed: 01/11/2023]
Abstract
Biosensors are important tools in biomedical research. Moreover, they are becoming an essential part of modern healthcare. In the future, biosensor development will become even more crucial due to the demand for personalized-medicine, point-of care devices and cheaper diagnostic tools. Substantial advances in sensor technology are often fueled by the advent of new materials. Therefore, nanomaterials have motivated a large body of research and such materials have been implemented into biosensor devices. Among these new materials carbon nanotubes (CNTs) are especially promising building blocks for biosensors due to their unique electronic and optical properties. Carbon nanotubes are rolled-up cylinders of carbon monolayers (graphene). They can be chemically modified in such a way that biologically relevant molecules can be detected with high sensitivity and selectivity. In this review article we will discuss how carbon nanotubes can be used to create biosensors. We review the latest advancements of optical carbon nanotube based biosensors with a special focus on near-infrared (NIR)-fluorescence, Raman-scattering and fluorescence quenching.
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Affiliation(s)
- Sebastian Kruss
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States
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45
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Chen CY, Chen CT. Reaction-based and single fluorescent emitter decorated ratiometric nanoprobe to detect hydrogen peroxide. Chemistry 2013; 19:16050-7. [PMID: 24123627 DOI: 10.1002/chem.201302342] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Indexed: 01/28/2023]
Abstract
A novel reaction-based cross-linked polymeric nanoprobe with a self-calibrating ratiometric fluorescence readout to selectively detect H2O2 is reported. The polymeric nanoprobe is fabricated by using hydrophobic H2O2-reactive boronic ester groups, crosslinker units, and environmentally sensitive 3-hydroxyflavone fluorophores through a miniemulsion polymerization. On treatment with H2O2, the boronic esters in the polymer are cleaved to form hydrophilic alcohols and subsequently lead to a hydrophobic-hydrophilic transition. Covalently linked 3-hydroxyflavones manifest the change in polarity as a ratiometric transition from green to blue, accompanied by a 500-fold increase in volume. Furthermore, this nanoprobe has been used for ratiometric sensing of glucose by monitoring the H2O2 generated during the oxidation of glucose by glucose oxidase, and thus successfully distinguished between normal and pathological levels of glucose.
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Affiliation(s)
- Chun-Yen Chen
- Department of Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei, 10617 Taiwan (R.O.C.), Fax: (+886) 2-23636359
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46
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Scarano W, Duong HTT, Lu H, De Souza PL, Stenzel MH. Folate conjugation to polymeric micelles via boronic acid ester to deliver platinum drugs to ovarian cancer cell lines. Biomacromolecules 2013; 14:962-75. [PMID: 23469757 DOI: 10.1021/bm400121q] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In this study, a novel technique was used for the reversible attachment of folic acid on the surface of polymeric micelles for a tumor-specific drug delivery system. The reversible conjugation is based on the interaction between phenylboronic acid (PBA) and dopamine to form a borate ester. The conjugation is fast and efficient and in vitro experiments via confocal fluorescent microscopy show that the linker is stable in for several hours. Reversible addition-fragmentation chain transfer (RAFT) polymerization was used to synthesize two various sized water-soluble block copolymer of oligoethylene glycol methylether methacylate and methyl acrylic acid (POEGMEMA(35)-b-PMAA(200) and POEGMEMA(26)-b-PMAA(90)). The platinum drug, oxoplatin, was then subsequently attached to the polymer via ester formation leading to platinum loading of 12 wt % as determined by TGA. The platinum-induced amphiphilic block copolymers that consequently led to the formation of micelles of sizes 150 and 20 nm in an aqueous environment with the longer PMAA block forming larger micelles. The small micelles were in addition cross-linked using 1,8-diaminooctane to further stabilize their structure. The targeting ability of folate conjugated polymeric micelles was investigated against two types of tumor cell lines: A549 (-FR) and OVCAR-3 (+FR). The cell line growth inhibitory efficacy of material synthesized was evaluated by using SRB method. The results revealed that folate conjugated micelles showed higher activity in FR + OVCAR-3 cells but not in FR - A549 cells. Similar results were obtained for both small and large micelles without the conjugation of folate. Comparing large and small micelles it can be observed that larger micelles are more efficient, which has been attributed to the lower stability of the smaller micelles. Micelle stabilization via cross-linking could indeed increase the toxicity of the drug carrier.
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Affiliation(s)
- Wei Scarano
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
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47
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Kim H, Kang YJ, Jeong ES, Kang S, Kim KT. Glucose-Responsive Disassembly of Polymersomes of Sequence-Specific Boroxole-Containing Block Copolymers under Physiologically Relevant Conditions. ACS Macro Lett 2012; 1:1194-1198. [PMID: 35607194 DOI: 10.1021/mz3004192] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polymers containing organoboronic acids have recently gained interest as sugar-responsive materials owing to the reversible binding of saccharides to boronic acids, which triggers a change in the physical and chemical properties of these polymers, such as their water solubility. In particular, the ability of these polymers to bind glucose has attracted considerable attention because of the promise of these materials for the development of sensors and drug delivery systems for glucose-related human diseases, such as diabetes. We report here a new class of sugar-responsive polymers that are based on a sequence-specific copolymer of styreneboroxole and N-functionalized maleimide. The reversible addition-fragmentation and chain transfer (RAFT) polymerization of this pair of monomers ensured that a glucose receptor alternates with a nonresponsive solubilizing group throughout the sugar-responsive polymer chain. Due to the presence of hydrophilic solubilizing groups beween the solubility-switching boroxole moieties in the membrane-forming block, the polymersomes of the block copolymers responded to a lower level of glucose in the medium, resulting in diassembly of the bilayer membrane under a physiologically relevant pH and glucose level.
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Affiliation(s)
- Hyunkyu Kim
- School of Nano-Bioscience and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST Road, Ulsan 698-798, Korea
| | - Young Ji Kang
- School of Nano-Bioscience and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST Road, Ulsan 698-798, Korea
| | - Eun Sun Jeong
- School of Nano-Bioscience and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST Road, Ulsan 698-798, Korea
| | - Sebyung Kang
- School of Nano-Bioscience and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST Road, Ulsan 698-798, Korea
| | - Kyoung Taek Kim
- School of Nano-Bioscience and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST Road, Ulsan 698-798, Korea
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