1
|
Posey N, Ma Y, Lueckheide M, Danischewski J, Fagan JA, Prabhu VM. Tuning Net Charge in Aliphatic Polycarbonates Alters Solubility and Protein Complexation Behavior. ACS OMEGA 2021; 6:22589-22602. [PMID: 34514231 PMCID: PMC8427630 DOI: 10.1021/acsomega.1c02523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 08/12/2021] [Indexed: 06/13/2023]
Abstract
A synthetic strategy yielded polyelectrolytes and polyampholytes with tunable net charge for complexation and protein binding. Organocatalytic ring-opening polymerizations yielded aliphatic polycarbonates that were functionalized with both carboxylate and ammonium side chains in a post-polymerization, radical-mediated thiol-ene reaction. Incorporating net charge into the polymer architecture altered the chain dimensions in phosphate buffered solution in a manner consistent with self-complexation and complexation behavior with model proteins. A net cationic polyampholyte with 5% of carboxylate side chains formed large clusters rather than small complexes with bovine serum albumin, while 50% carboxylate polyampholyte was insoluble. Overall, the aliphatic polycarbonates with varying net charge exhibited different macrophase solution behaviors when mixed with protein, where self-complexation appears to compete with protein binding and larger-scale complexation.
Collapse
Affiliation(s)
| | - Yuanchi Ma
- Materials Science and Engineering Division,
Material Measurement Laboratory, National
Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Michael Lueckheide
- Materials Science and Engineering Division,
Material Measurement Laboratory, National
Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Julia Danischewski
- Materials Science and Engineering Division,
Material Measurement Laboratory, National
Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Jeffrey A. Fagan
- Materials Science and Engineering Division,
Material Measurement Laboratory, National
Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Vivek M. Prabhu
- Materials Science and Engineering Division,
Material Measurement Laboratory, National
Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| |
Collapse
|
2
|
Yu W, Maynard E, Chiaradia V, Arno MC, Dove AP. Aliphatic Polycarbonates from Cyclic Carbonate Monomers and Their Application as Biomaterials. Chem Rev 2021; 121:10865-10907. [DOI: 10.1021/acs.chemrev.0c00883] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Wei Yu
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Edward Maynard
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Viviane Chiaradia
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Maria C. Arno
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
- Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, B15 2TT U.K
| | - Andrew P. Dove
- School of Chemistry, University of Birmingham, Edgbaston, B15 2TT U.K
| |
Collapse
|
3
|
Nobuoka H, Nagasawa M, Chanthaset N, Yoshida H, Haramiishi Y, Ajiro H. Synthesis of amphiphilic block copolymer using trimethylene carbonate bearing oligo(ethylene glycol) and investigation of thin film including cilostazol. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Hiroaki Nobuoka
- Division of Materials Science Nara Institute of Science and Technology Nara Japan
| | - Masakazu Nagasawa
- Research and Development Department, Otsuka Medical Devices Co., Ltd., Kanda‐Tsukasamachi, Chiyoda‐ku Tokyo Japan
| | - Nalinthip Chanthaset
- Division of Materials Science Nara Institute of Science and Technology Nara Japan
| | - Hiroaki Yoshida
- Division of Materials Science Nara Institute of Science and Technology Nara Japan
| | - Yoshiaki Haramiishi
- Division of Materials Science Nara Institute of Science and Technology Nara Japan
| | - Hiroharu Ajiro
- Division of Materials Science Nara Institute of Science and Technology Nara Japan
| |
Collapse
|
4
|
Mabesoone MFJ, Gopez JD, Paulus IE, Klinger D. Tunable biohybrid hydrogels from coacervation of hyaluronic acid and PEO‐based block copolymers. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Mathijs F. J. Mabesoone
- Materials Research LaboratoryUniversity of California Santa Barbara California 93106 USA
- Department of Molecular MaterialsRadboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525AJ Nijmegen The Netherlands
| | - Jeffrey D. Gopez
- Materials Research LaboratoryUniversity of California Santa Barbara California 93106 USA
| | - Ilka E. Paulus
- Materials Research LaboratoryUniversity of California Santa Barbara California 93106 USA
| | - Daniel Klinger
- Materials Research LaboratoryUniversity of California Santa Barbara California 93106 USA
- Institute of Pharmacy, Freie Universität Berlin, Königin‐Luise‐Str. 2‐4, 14195 Berlin Germany
| |
Collapse
|
5
|
Smith R, Russo J, Fiegel J, Brogden N. Antibiotic Delivery Strategies to Treat Skin Infections When Innate Antimicrobial Defense Fails. Antibiotics (Basel) 2020; 9:E56. [PMID: 32024064 PMCID: PMC7168299 DOI: 10.3390/antibiotics9020056] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/26/2020] [Accepted: 01/28/2020] [Indexed: 12/14/2022] Open
Abstract
The epidermal skin barrier protects the body from a host of daily challenges, providing protection against mechanical insults and the absorption of chemicals and xenobiotics. In addition to the physical barrier, the epidermis also presents an innate defense against microbial overgrowth. This is achieved through the presence of a diverse collection of microorganisms on the skin (the "microbiota") that maintain a delicate balance with the host and play a significant role in overall human health. When the skin is wounded, the local tissue with a compromised barrier can become colonized and ultimately infected if bacterial growth overcomes the host response. Wound infections present an immense burden in healthcare costs and decreased quality of life for patients, and treatment becomes increasingly important because of the negative impact that infection has on slowing the rate of wound healing. In this review, we discuss specific challenges of treating wound infections and the advances in drug delivery platforms and formulations that are under development to improve topical delivery of antimicrobial treatments.
Collapse
Affiliation(s)
- R. Smith
- Department of Chemical and Biochemical Engineering, The University of Iowa, Iowa City, IA 52242, USA; (R.S.); (J.F.)
| | - J. Russo
- Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa, Iowa City, IA 52242, USA;
| | - J. Fiegel
- Department of Chemical and Biochemical Engineering, The University of Iowa, Iowa City, IA 52242, USA; (R.S.); (J.F.)
- Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa, Iowa City, IA 52242, USA;
| | - N. Brogden
- Department of Pharmaceutical Sciences and Experimental Therapeutics, The University of Iowa, Iowa City, IA 52242, USA;
- Department of Dermatology, The University of Iowa, Iowa City, IA 52242, USA
| |
Collapse
|
6
|
Ding X, Wang A, Tong W, Xu FJ. Biodegradable Antibacterial Polymeric Nanosystems: A New Hope to Cope with Multidrug-Resistant Bacteria. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900999. [PMID: 30957927 DOI: 10.1002/smll.201900999] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 03/19/2019] [Indexed: 05/14/2023]
Abstract
The human society is faced with daunting threats from bacterial infections. Over decades, a variety of antibacterial polymeric nanosystems have exhibited great promise for the eradication of multidrug-resistant bacteria and persistent biofilms by enhancing bacterial recognition and binding capabilities. In this Review, the "state-of-the-art" biodegradable antibacterial polymeric nanosystems, which could respond to bacteria environments (e.g., acidity or bacterial enzymes) for controlled antibiotic release or multimodal antibacterial treatment, are summarized. The current antibacterial polymeric nanosystems can be categorized into antibiotic-containing and intrinsic antibacterial nanosystems. The antibiotic-containing polymeric nanosystems include antibiotic-encapsulated nanocarriers (e.g., polymeric micelles, vesicles, nanogels) and antibiotic-conjugated polymer nanosystems for the delivery of antibiotic drugs. On the other hand, the intrinsic antibacterial polymer nanosystems containing bactericidal moieties such as quaternary ammonium groups, phosphonium groups, polycations, antimicrobial peptides (AMPs), and their synthetic mimics, are also described. The biodegradability of the nanosystems can be rendered by the incorporation of labile chemical linkages, such as carbonate, ester, amide, and phosphoester bonds. The design and synthesis of the degradable polymeric building blocks and their fabrications into nanosystems are also explicated, together with their plausible action mechanisms and potential biomedical applications. The perspectives of the current research in this field are also described.
Collapse
Affiliation(s)
- Xiaokang Ding
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, 100029, China
- Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Anzhi Wang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, 100029, China
- Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Wei Tong
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, 100029, China
- Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Fu-Jian Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
- Key Lab of Biomedical Materials of Natural Macromolecules, Beijing University of Chemical Technology, Ministry of Education, Beijing, 100029, China
- Beijing Laboratory of Biomedical Materials, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| |
Collapse
|
7
|
Nobuoka H, Ajiro H. Biodegradable and Biocompatible Crosslinked Film with Trimethylene Carbonate Bearing Oligo(ethylene glycol). CHEM LETT 2019. [DOI: 10.1246/cl.180960] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroaki Nobuoka
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| | - Hiroharu Ajiro
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
- Institute for Research Initiatives, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan
| |
Collapse
|
8
|
Fukushima K, Kishi K, Saito K, Takakuwa K, Hakozaki S, Yano S. Modulating bioactivities of primary ammonium-tagged antimicrobial aliphatic polycarbonates by varying length, sequence and hydrophobic side chain structure. Biomater Sci 2019; 7:2288-2296. [DOI: 10.1039/c9bm00440h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A highly antimicrobial, biocompatible, and fast biodegradable polycarbonate has been developed by incorporating primary ammonium and monoether side chains.
Collapse
Affiliation(s)
- Kazuki Fukushima
- Graduate School of Organic Materials Science
- Yamagata University
- Yonezawa
- Japan
| | - Kohei Kishi
- Graduate School of Organic Materials Science
- Yamagata University
- Yonezawa
- Japan
| | - Keita Saito
- Graduate School of Organic Materials Science
- Yamagata University
- Yonezawa
- Japan
| | - Kazuki Takakuwa
- Graduate School of Organic Materials Science
- Yamagata University
- Yonezawa
- Japan
| | - Shunta Hakozaki
- Graduate School of Organic Materials Science
- Yamagata University
- Yonezawa
- Japan
| | - Shigekazu Yano
- Graduate School of Science and Engineering
- Yamagata University
- Japan
| |
Collapse
|
9
|
Dai Y, Zhang X. Cationic polycarbonates via ring-opening polymerization: design, synthesis, and applications. Polym Chem 2019. [DOI: 10.1039/c8py01365a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synthetic methods and applications of cationic polycarbonates via ring-opening polymerization are highlighted.
Collapse
Affiliation(s)
- Yu Dai
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Faculty of Materials Science and Chemistry
- China University of Geosciences
- Wuhan 430074
- China
| | - Xiaojin Zhang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education
- Faculty of Materials Science and Chemistry
- China University of Geosciences
- Wuhan 430074
- China
| |
Collapse
|
10
|
Liu B, Yao T, Ren L, Zhao Y, Yuan X. Antibacterial PCL electrospun membranes containing synthetic polypeptides for biomedical purposes. Colloids Surf B Biointerfaces 2018; 172:330-337. [DOI: 10.1016/j.colsurfb.2018.08.055] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 11/15/2022]
|
11
|
Obuobi S, Voo ZX, Low MW, Czarny B, Selvarajan V, Ibrahim NL, Yang YY, Ee PLR. Phenylboronic Acid Functionalized Polycarbonate Hydrogels for Controlled Release of Polymyxin B in Pseudomonas Aeruginosa Infected Burn Wounds. Adv Healthc Mater 2018; 7:e1701388. [PMID: 29508561 DOI: 10.1002/adhm.201701388] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 01/22/2018] [Indexed: 01/08/2023]
Abstract
While physically crosslinked polycarbonate hydrogels are effective drug delivery platforms, their hydrophobic nature and lack of side chain functionality or affinity ligands for controlled release of hydrophilic drugs underscore the importance of their chemical compositions. This study evaluates an array of anionic hydrogel systems of phenylboronic acid functionalized triblock copolymers prepared via reversible physical interactions. Variation of key chemical functionalities while maintaining similar core structural features demonstrates the influence of the substitution position and protection of the boronic acid functionality on gel viscoelasticity and mechanical strength at physiological pH. The optimum gel systems obtained from the meta-substituted copolymers (m-PAP) are stable at physiological pH and nontoxic to mammalian dermal cells. The polymyxin B loaded m-PAP hydrogels demonstrate controlled in vitro drug release kinetics and in vitro antimicrobial activity against Pseudomonas aeruginosa over 48 h. In vivo antimicrobial efficacy of the drug loaded hydrogels further corroborates the in vitro results, demonstrating sustained antimicrobial activity against P. aeruginosa burn wound infections. The current strategy described in this study demonstrates a straightforward approach in designing physiologically relevant boronic acid hydrogel systems for controlled release of cationic antimicrobials for future clinical applications.
Collapse
Affiliation(s)
- Sybil Obuobi
- Department of Pharmacy National University of Singapore; 18 Science Drive 4 117543 Singapore
| | - Zhi Xiang Voo
- Institute of Bioengineering and Nanotechnology; 31 Biopolis Way, the Nanos 138669 Singapore
| | - Mei W. Low
- Department of Pharmacy National University of Singapore; 18 Science Drive 4 117543 Singapore
| | - Bertrand Czarny
- Department of Pharmacy National University of Singapore; 18 Science Drive 4 117543 Singapore
| | - Vanitha Selvarajan
- Department of Pharmacy National University of Singapore; 18 Science Drive 4 117543 Singapore
| | - Nor L. Ibrahim
- Institute of Bioengineering and Nanotechnology; 31 Biopolis Way, the Nanos 138669 Singapore
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology; 31 Biopolis Way, the Nanos 138669 Singapore
| | - Pui Lai Rachel Ee
- Department of Pharmacy National University of Singapore; 18 Science Drive 4 117543 Singapore
| |
Collapse
|
12
|
Fukushima K, Inoue Y, Haga Y, Ota T, Honda K, Sato C, Tanaka M. Monoether-Tagged Biodegradable Polycarbonate Preventing Platelet Adhesion and Demonstrating Vascular Cell Adhesion: A Promising Material for Resorbable Vascular Grafts and Stents. Biomacromolecules 2017; 18:3834-3843. [PMID: 28972745 DOI: 10.1021/acs.biomac.7b01210] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
We developed a biodegradable polycarbonate that demonstrates antithrombogenicity and vascular cell adhesion via organocatalytic ring-opening polymerization of a trimethylene carbonate (TMC) analogue bearing a methoxy group. The monoether-tagged polycarbonate demonstrates a platelet adhesion property that is 93 and 89% lower than those of poly(ethylene terephthalate) and polyTMC, respectively. In contrast, vascular cell adhesion properties of the polycarbonate are comparable to those controls, indicating a potential for selective cell adhesion properties. This difference in the cell adhesion property is well associated with surface hydration, which affects protein adsorption and denaturation. Fibrinogen is slightly denatured on the monoether-tagged polycarbonate, whereas fibronectin is highly activated to expose the RGD motif for favorable vascular cell adhesion. The surface hydration, mainly induced by the methoxy side chain, also contributes to slowing the enzymatic degradation. Consequently, the polycarbonate exhibits decent blood compatibility, vascular cell adhesion properties, and biodegradability, which is promising for applications in resorbable vascular grafts and stents.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Masaru Tanaka
- Institute for Materials Chemistry and Engineering, Kyushu University , 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| |
Collapse
|
13
|
Ono RJ, Lee ALZ, Voo ZX, Venkataraman S, Koh BW, Yang YY, Hedrick JL. Biodegradable Strain-Promoted Click Hydrogels for Encapsulation of Drug-Loaded Nanoparticles and Sustained Release of Therapeutics. Biomacromolecules 2017; 18:2277-2285. [DOI: 10.1021/acs.biomac.7b00377] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Robert J. Ono
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
| | - Ashlynn L. Z. Lee
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Zhi Xiang Voo
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Shrinivas Venkataraman
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Bei Wei Koh
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - Yi Yan Yang
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, Singapore 138669, Singapore
| | - James L. Hedrick
- IBM Almaden Research Center, 650 Harry Road, San Jose, California 95120, United States
| |
Collapse
|
14
|
Matsukizono H, Endo T. Phosgene-Free Syntheses and Hydrolytic Properties of Water-Soluble Polyhydroxyurethanes with Ester-Carbonate-Ether Structures in Their Main Chains. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700043] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hiroyuki Matsukizono
- Molecular Engineering Institute; Kindai University; 11-6 Kayanomori Iizuka Fukuoka 820-8555 Japan
| | - Takeshi Endo
- Molecular Engineering Institute; Kindai University; 11-6 Kayanomori Iizuka Fukuoka 820-8555 Japan
| |
Collapse
|
15
|
Segal M, Avinery R, Buzhor M, Shaharabani R, Harnoy AJ, Tirosh E, Beck R, Amir RJ. Molecular Precision and Enzymatic Degradation: From Readily to Undegradable Polymeric Micelles by Minor Structural Changes. J Am Chem Soc 2017; 139:803-810. [PMID: 27990807 DOI: 10.1021/jacs.6b10624] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Studying the enzymatic degradation of synthetic polymers is crucial for the design of suitable materials for biomedical applications ranging from advanced drug delivery systems to tissue engineering. One of the key parameters that governs enzymatic activity is the limited accessibility of the enzyme to its substrates that may be collapsed inside hydrophobic domains. PEG-dendron amphiphiles can serve as powerful tools for the study of enzymatic hydrolysis of polymeric amphiphiles due to the monodispersity and symmetry of the hydrophobic dendritic block, which significantly simplifies kinetic analyses. Using these hybrids, we demonstrate how precise, minor changes in the hydrophobic block are manifested into tremendous changes in the stability of the assembled micelles toward enzymatic degradation. The obtained results emphasize the extreme sensitivity of self-assembly and its great importance in regulating the accessibility of enzymes to their substrates. Furthermore, the demonstration that the structural differences between readily degradable and undegradable micelles are rather minor, points to the critical roles that self-assembly and polydispersity play in designing biodegradable materials.
Collapse
Affiliation(s)
- Merav Segal
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University , Tel-Aviv 6997801, Israel.,Tel-Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University , Tel-Aviv 6997801, Israel
| | - Ram Avinery
- Tel-Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University , Tel-Aviv 6997801, Israel.,School of Physics and Astronomy, Faculty of Exact Sciences, Tel-Aviv University , Tel-Aviv 6997801, Israel
| | - Marina Buzhor
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University , Tel-Aviv 6997801, Israel.,Tel-Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University , Tel-Aviv 6997801, Israel
| | - Rona Shaharabani
- Tel-Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University , Tel-Aviv 6997801, Israel.,Department of Physical Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University , Tel-Aviv 6997801, Israel
| | - Assaf J Harnoy
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University , Tel-Aviv 6997801, Israel.,Tel-Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University , Tel-Aviv 6997801, Israel
| | - Einat Tirosh
- Tel-Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University , Tel-Aviv 6997801, Israel.,Department of Physical Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University , Tel-Aviv 6997801, Israel
| | - Roy Beck
- Tel-Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University , Tel-Aviv 6997801, Israel.,School of Physics and Astronomy, Faculty of Exact Sciences, Tel-Aviv University , Tel-Aviv 6997801, Israel
| | - Roey J Amir
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University , Tel-Aviv 6997801, Israel.,Tel-Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University , Tel-Aviv 6997801, Israel
| |
Collapse
|
16
|
Peng K, Zou T, Ding W, Wang R, Guo J, Round JJ, Tu W, Liu C, Hu J. Development of contact-killing non-leaching antimicrobial guanidyl-functionalized polymers via click chemistry. RSC Adv 2017. [DOI: 10.1039/c7ra02706k] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
A new contact-killing and non-leaching antimicrobial polymer was prepared by a robust, efficient and orthogonal click-chemistry.
Collapse
Affiliation(s)
- Kaimei Peng
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Tao Zou
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wei Ding
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Ruonan Wang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Jinshan Guo
- Aleo BME
- Inc.200 Innovation Blvd
- State College
- USA
| | | | - Weiping Tu
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Chao Liu
- Aleo BME
- Inc.200 Innovation Blvd
- State College
- USA
| | - Jianqing Hu
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| |
Collapse
|
17
|
Matsukizono H, Endo T. Ring-opening polymerization of six-membered cyclic carbonates initiated by ethanol amine derivatives and their application to protonated or quaternary ammonium salt-functionalized polycarbonate films. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27922] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Hiroyuki Matsukizono
- Molecular Engineering Institute; Kinki University; 11-6 Kayanomori Iizuka Fukuoka 820-8555 Japan
| | - Takeshi Endo
- Molecular Engineering Institute; Kinki University; 11-6 Kayanomori Iizuka Fukuoka 820-8555 Japan
| |
Collapse
|