101
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Yoshikawa C, Hattori S, Huang CF, Kobayashi H, Tanaka M. In vitro and in vivo blood compatibility of concentrated polymer brushes. J Mater Chem B 2021; 9:5794-5804. [PMID: 34124738 DOI: 10.1039/d1tb00886b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Concentrated polymer brushes (CPBs) and semi-dilute polymer brushes (SDPBs) of poly(2-hydroxyethyl methacrylate), poly(2-hydroxyethyl acrylate), poly[poly(ethylene glycol)methyl ether methacrylate] (PPEGMA) and poly(2-methoxyetyl acrylate) were prepared on silica particles and silicon wafers by surface-initiated atom transfer radical polymerization (SI-ATRP). In order to evaluate in vitro blood compatibility, plasma protein adsorption on the brushes was quantified with a BCA protein assay, and the adsorbed proteins on the brushes were identified using high-performance liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS). All four CPBs displayed much less protein adsorption than their corresponding SDPBs. Interestingly, the number and type of identified proteins differed on the brushes. Platelet adhesion was then examined on the brushes, whereby CPBs suppressed platelet adhesion to a greater extent than the corresponding SDPBs, although platelet activation was observed on all surfaces. As a result, the CPBs of PPEGMA prevented platelet adhesion the most. After screening the polymers by in vitro evaluation, CPBs of PPEGMA were then grafted on a catheter by SI-ATRP. The catheter with the CPBs was implanted into the jugular vein of a rabbit. The in vivo assessment after three weeks of implantation confirmed that the CPBs caused little coagulation or inflammation, whereas the pristine catheter exhibited inflammation and encapsulation.
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Affiliation(s)
- Chiaki Yoshikawa
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0047, Japan.
| | - Shinya Hattori
- NIMS Molecular & Material Synthesis Platform, NIMS, Tsukuba, Ibaraki 305-0047, Japan
| | - Chih-Feng Huang
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0047, Japan. and Department of Chemical Engineering, i-Center for Advanced Science and Technology (iCAST), National Chung Hsing University, Taichung 402-27, Taiwan
| | | | - Masaru Tanaka
- Soft Materials Chemistry, Institute for Materials Chemistry and Engineering, Kyushu University, Build. CE41, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan and Former Frontier Center for Organic Materials, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan.
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102
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Structure/Properties Relationship of Anionically Synthesized Diblock Copolymers " Grafted to" Chemically Modified Graphene. Polymers (Basel) 2021; 13:polym13142308. [PMID: 34301065 PMCID: PMC8309249 DOI: 10.3390/polym13142308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/07/2021] [Accepted: 07/10/2021] [Indexed: 11/17/2022] Open
Abstract
A novel approach to obtaining nanocomposite materials using anionic sequential polymerization and post-synthetic esterification reactions with chemically modified graphene sheets (CMGs) is reported. The anionically synthesized diblock copolymer precursors of the PS-b-PI-OH type were grafted to the chemically modified –COOH groups of the CMGs, giving rise to the final composite materials, namely polystyrene-b-poly(isoprene)-g-CMGs, which exhibited enhanced physicochemical properties. The successful synthesis was determined through multiple molecular characterization techniques together with thermogravimetric analysis for the verification of increased thermal stability, and the structure/properties relationship was justified through transmission electron microscopy. Furthermore, the arrangement of CMGs utilizing lamellar and cylindrical morphologies was studied in order to determine the effect of the loaded CMGs in the adopted topologies.
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103
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Li D, Ahmed M, Khan A, Xu L, Walters AA, Ballesteros B, Al-Jamal KT. Tailoring the Architecture of Cationic Polymer Brush-Modified Carbon Nanotubes for Efficient siRNA Delivery in Cancer Immunotherapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30284-30294. [PMID: 34170101 DOI: 10.1021/acsami.1c02627] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The facile and controlled fabrication of homogeneously grafted cationic polymers on carbon nanotubes (CNTs) remains poorly investigated, which further hinders the understanding of interactions between functionalized CNTs with different nucleic acids and the rational design of appropriate gene delivery vehicles. Herein, we describe the controlled grafting of cationic poly(2-dimethylaminoethylmethacrylate) brushes on CNTs via surface-initiated atom transfer radical polymerization integrated with mussel-inspired polydopamine chemistry. The binding of nucleic acids with different brush-CNT hybrids discloses the highly architectural-dependent behavior with dense short brush-coated CNTs displaying the highest binding among all the other hybrids, namely, dense long, sparse long, and sparse short brush-coated CNTs. Additionally, different chemistries of the brush coatings were shown to influence the biocompatibility, cellular uptake, and silencing efficiency in vitro. This platform provides great flexibility for the design of polymer brush-CNT hybrids with precise control over their structure-activity relationship for the rational design of nucleic acid delivery systems.
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Affiliation(s)
- Danyang Li
- Institute of Pharmaceutical Science, Faculty of Life Science & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH U.K
| | - Momina Ahmed
- Institute of Pharmaceutical Science, Faculty of Life Science & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH U.K
| | - Anisah Khan
- Institute of Pharmaceutical Science, Faculty of Life Science & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH U.K
| | - Lizhou Xu
- Institute of Pharmaceutical Science, Faculty of Life Science & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH U.K
| | - Adam A Walters
- Institute of Pharmaceutical Science, Faculty of Life Science & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH U.K
| | - Belén Ballesteros
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, Barcelona 08193, Spain
| | - Khuloud T Al-Jamal
- Institute of Pharmaceutical Science, Faculty of Life Science & Medicine, King's College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH U.K
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104
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Improving the biofouling resistance of polyamide thin-film composite membrane via grafting polyacrylamide brush on the surface by in-situ atomic transfer radical polymerization. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119283] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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105
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106
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Zhang T, Pramanik G, Zhang K, Gulka M, Wang L, Jing J, Xu F, Li Z, Wei Q, Cigler P, Chu Z. Toward Quantitative Bio-sensing with Nitrogen-Vacancy Center in Diamond. ACS Sens 2021; 6:2077-2107. [PMID: 34038091 DOI: 10.1021/acssensors.1c00415] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The long-dreamed-of capability of monitoring the molecular machinery in living systems has not been realized yet, mainly due to the technical limitations of current sensing technologies. However, recently emerging quantum sensors are showing great promise for molecular detection and imaging. One of such sensing qubits is the nitrogen-vacancy (NV) center, a photoluminescent impurity in a diamond lattice with unique room-temperature optical and spin properties. This atomic-sized quantum emitter has the ability to quantitatively measure nanoscale electromagnetic fields via optical means at ambient conditions. Moreover, the unlimited photostability of NV centers, combined with the excellent diamond biocompatibility and the possibility of diamond nanoparticles internalization into the living cells, makes NV-based sensors one of the most promising and versatile platforms for various life-science applications. In this review, we will summarize the latest developments of NV-based quantum sensing with a focus on biomedical applications, including measurements of magnetic biomaterials, intracellular temperature, localized physiological species, action potentials, and electronic and nuclear spins. We will also outline the main unresolved challenges and provide future perspectives of many promising aspects of NV-based bio-sensing.
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Affiliation(s)
- Tongtong Zhang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Goutam Pramanik
- UGC DAE Consortium for Scientific Research, Kolkata Centre, Sector III, LB-8, Bidhan Nagar, Kolkata 700106, India
| | - Kai Zhang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Michal Gulka
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 166 10 Prague, Czech Republic
| | - Lingzhi Wang
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Jixiang Jing
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Feng Xu
- Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Zifu Li
- National Engineering Research Center for Nanomedicine, Key Laboratory of Molecular Biophysics of Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medical, College of Life Science and Technology, Huazhong University of Science and Technology, 430074 Wuhan, China
| | - Qiang Wei
- College of Polymer Science and Engineering, College of Biomedical Engineering, State Key Laboratory of Polymer Materials and Engineering, Sichuan University, 610065 Chengdu, China
| | - Petr Cigler
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, 166 10 Prague, Czech Republic
| | - Zhiqin Chu
- Department of Electrical and Electronic Engineering, Joint Appointment with School of Biomedical Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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107
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Shieh P, Hill MR, Zhang W, Kristufek SL, Johnson JA. Clip Chemistry: Diverse (Bio)(macro)molecular and Material Function through Breaking Covalent Bonds. Chem Rev 2021; 121:7059-7121. [PMID: 33823111 DOI: 10.1021/acs.chemrev.0c01282] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In the two decades since the introduction of the "click chemistry" concept, the toolbox of "click reactions" has continually expanded, enabling chemists, materials scientists, and biologists to rapidly and selectively build complexity for their applications of interest. Similarly, selective and efficient covalent bond breaking reactions have provided and will continue to provide transformative advances. Here, we review key examples and applications of efficient, selective covalent bond cleavage reactions, which we refer to herein as "clip reactions." The strategic application of clip reactions offers opportunities to tailor the compositions and structures of complex (bio)(macro)molecular systems with exquisite control. Working in concert, click chemistry and clip chemistry offer scientists and engineers powerful methods to address next-generation challenges across the chemical sciences.
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Affiliation(s)
- Peyton Shieh
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Megan R Hill
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Wenxu Zhang
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Samantha L Kristufek
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Jeremiah A Johnson
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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108
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Zuo B, Li C, Xu Q, Randazzo K, Jiang N, Wang X, Priestley RD. Ultrastable Glassy Polymer Films with an Ultradense Brush Morphology. ACS NANO 2021; 15:9568-9576. [PMID: 34032418 DOI: 10.1021/acsnano.0c09631] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Glassy polymer films with extreme stability could enable major advancements in a range of fields that require the use of polymers in confined environments. Yet, from a materials design perspective, we now know that the glass transition temperature (Tg) and thermal expansion of polymer thin films can be dramatically different from those characteristics of the bulk, i.e., exhibiting confinement-induced diminished thermal stability. Here, we demonstrate that polymer brushes with an ultrahigh grafting density, i.e., an ultradense brush morphology, exhibit a significant enhancement in thermal stability, as manifested by an exceptionally high Tg and low expansivity. For instance, a 5 nm thick polystyrene brush film exhibits an ∼75 K increase in Tg and ∼90% reduction in expansivity compared to a spin-cast film of similar thickness. Our results establish how morphology can overcome confinement and interfacial effects in controlling thin-film material properties and how this can be achieved by the dense packing and molecular ordering in the amorphous state of ultradense brushes prepared by surface-initiated atom transfer radical polymerization in combination with a self-assembled monolayer of initiators.
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Affiliation(s)
| | | | - Quanyin Xu
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Katelyn Randazzo
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Naisheng Jiang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | | | - Rodney D Priestley
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
- Princeton Institute for the Science and Technology of Materials, Princeton University, Princeton, New Jersey 08544, United States
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109
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Affiliation(s)
- Ning Ren
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Chunyang Yu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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110
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Alagi P, Zapsas G, Hadjichristidis N, Hong SC, Gnanou Y, Feng X. All-Polycarbonate Graft Copolymers with Tunable Morphologies by Metal-Free Copolymerization of CO 2 with Epoxides. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00659] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Prakash Alagi
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - George Zapsas
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Nikos Hadjichristidis
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Sung Chul Hong
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul 143-747, Republic of Korea
| | - Yves Gnanou
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
| | - Xiaoshuang Feng
- Physical Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia
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111
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Söder D, Garay-Sarmiento M, Rahimi K, Obstals F, Dedisch S, Haraszti T, Davari MD, Jakob F, Heß C, Schwaneberg U, Rodriguez-Emmenegger C. Unraveling the Mechanism and Kinetics of Binding of an LCI-eGFP-Polymer for Antifouling Coatings. Macromol Biosci 2021; 21:e2100158. [PMID: 34145970 DOI: 10.1002/mabi.202100158] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/15/2021] [Indexed: 11/07/2022]
Abstract
The ability of proteins to adsorb irreversibly onto surfaces opens new possibilities to functionalize biological interfaces. Herein, the mechanism and kinetics of adsorption of protein-polymer macromolecules with the ability to equip surfaces with antifouling properties are investigated. These macromolecules consist of the liquid chromatography peak I peptide from which antifouling polymer brushes are grafted using single electron transfer-living radical polymerization. Surface plasmon resonance spectroscopy reveals an adsorption mechanism that follows a Langmuir-type of binding with a strong binding affinity to gold. X-ray reflectivity supports this by proving that the binding occurs exclusively by the peptide. However, the lateral organization at the surface is directed by the cylindrical eGFP. The antifouling functionality of the unimolecular coatings is confirmed by contact with blood plasma. All coatings reduce the fouling from blood plasma by 8894% with only minor effect of the degree of polymerization for the studied range (DP between 101 and 932). The excellent antifouling properties, combined with the ease of polymerization and the straightforward coating procedure make this a very promising antifouling concept for a multiplicity of applications.
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Affiliation(s)
- Dominik Söder
- DWI - Leibniz Institute for Interactive Materials, 52074, Aachen, Germany.,Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, 52074, Aachen, Germany
| | - Manuela Garay-Sarmiento
- DWI - Leibniz Institute for Interactive Materials, 52074, Aachen, Germany.,Lehrstuhl für Biotechnologie, RWTH Aachen University, 52074, Aachen, Germany
| | - Khosrow Rahimi
- DWI - Leibniz Institute for Interactive Materials, 52074, Aachen, Germany
| | - Fabian Obstals
- DWI - Leibniz Institute for Interactive Materials, 52074, Aachen, Germany.,Institute of Technical and Macromolecular Chemistry, RWTH Aachen University, 52074, Aachen, Germany
| | - Sarah Dedisch
- DWI - Leibniz Institute for Interactive Materials, 52074, Aachen, Germany.,Lehrstuhl für Biotechnologie, RWTH Aachen University, 52074, Aachen, Germany
| | - Tamás Haraszti
- DWI - Leibniz Institute for Interactive Materials, 52074, Aachen, Germany
| | - Mehdi D Davari
- Lehrstuhl für Biotechnologie, RWTH Aachen University, 52074, Aachen, Germany
| | - Felix Jakob
- DWI - Leibniz Institute for Interactive Materials, 52074, Aachen, Germany.,Lehrstuhl für Biotechnologie, RWTH Aachen University, 52074, Aachen, Germany
| | - Christoph Heß
- Faculty of Technology and Bionics, Rhine-Waal University of Applied Sciences, 47533, Kleve, Germany
| | - Ulrich Schwaneberg
- DWI - Leibniz Institute for Interactive Materials, 52074, Aachen, Germany.,Lehrstuhl für Biotechnologie, RWTH Aachen University, 52074, Aachen, Germany
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112
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Huang Y, Tran H, Ober CK. High-Resolution Nanopatterning of Free-Standing, Self-Supported Helical Polypeptide Rod Brushes via Electron Beam Lithography. ACS Macro Lett 2021; 10:755-759. [PMID: 35549094 DOI: 10.1021/acsmacrolett.1c00187] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In this study of nanopatterned helical poly(benzyl-l-glutamate) (PBLG) brushes, rod-type brush arrays were fabricated via an integrated process of high-resolution lithography and surface-initiated vapor deposition polymerization (SI-VDP). "Nanospikes" of polymer brushes with spacings of less than 100 nm were produced. The topology and areal behavior of the resulting patterned rod-like brushes were analyzed and compared with patterned coil-type brushes. A geometric study of these self-assembled "nanospikes" was carried out, and their cross sections were investigated via focused ion beam (FIB) and scanning electron microscopy (SEM). Furthermore, the presence of poly(N-isopropylacrylamide) (PNIPAM) brushes in unpatterned regions was shown to inhibit undesired "inter-spike" bridging of the PBLG brushes, resulting in more well-defined nanostructures. It was shown that rod-like polypeptide brushes are capable of self-segregation and become arranged vertically without any external support from their surroundings, to form a rod bundle end-point functional topography that could provide possible pathways for studies of model biological surfaces, directed assembly of nanoparticles, or binary mixed brush surfaces with dual properties.
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113
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Liu B, Singh K, Gong S, Canakci M, Osborne BA, Thayumanavan S. Protein–Antibody Conjugates (PACs): A Plug‐and‐Play Strategy for Covalent Conjugation and Targeted Intracellular Delivery of Pristine Proteins. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Bin Liu
- Department of Chemistry University of Massachusetts Amherst MA 01003 USA
| | - Khushboo Singh
- Department of Chemistry University of Massachusetts Amherst MA 01003 USA
- Center for Bioactive Delivery Institute for Applied Life Sciences University of Massachusetts Amherst MA 01003 USA
| | - Shuai Gong
- Department of Chemistry University of Massachusetts Amherst MA 01003 USA
- Center for Bioactive Delivery Institute for Applied Life Sciences University of Massachusetts Amherst MA 01003 USA
| | - Mine Canakci
- Molecular and Cellular Biology Program University of Massachusetts Amherst MA 01003 USA
- Center for Bioactive Delivery Institute for Applied Life Sciences University of Massachusetts Amherst MA 01003 USA
| | - Barbara A. Osborne
- Molecular and Cellular Biology Program University of Massachusetts Amherst MA 01003 USA
- Center for Bioactive Delivery Institute for Applied Life Sciences University of Massachusetts Amherst MA 01003 USA
- Department of Veterinary and Animal Sciences University of Massachusetts Amherst MA 01003 USA
| | - S. Thayumanavan
- Department of Chemistry University of Massachusetts Amherst MA 01003 USA
- Molecular and Cellular Biology Program University of Massachusetts Amherst MA 01003 USA
- Center for Bioactive Delivery Institute for Applied Life Sciences University of Massachusetts Amherst MA 01003 USA
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114
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Liu B, Singh K, Gong S, Canakci M, Osborne B, Thayumanavan S. Protein-Antibody Conjugates (PACs): A Plug-and-Play Strategy for Covalent Conjugation and Targeted Intracellular Delivery of Pristine Proteins. Angew Chem Int Ed Engl 2021; 60:12813-12818. [PMID: 33768625 PMCID: PMC8762996 DOI: 10.1002/anie.202103106] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Indexed: 12/17/2022]
Abstract
We report here on protein-antibody conjugates (PACs) that are used for antibody-directed delivery of protein therapeutics to specific cells. PACs have the potential to judiciously combine the merits of two prolific therapeutic approaches-biologics and antibody-drug conjugates. We utilize spherical polymer brushes to construct PACs using the combination of two simple and efficient functionally orthogonal click chemistries. In addition to the synthesis and characterization of these nanoparticles, we demonstrate that PACs are indeed capable of specifically targeting cells based on the presence of target antigen on the cell surface to deliver proteins. The potentially broad adaptability of PACs opens up new opportunities for targeted biologics in therapeutics and sensing.
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Affiliation(s)
- Bin Liu
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Khushboo Singh
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Shuai Gong
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Mine Canakci
- Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - Barbara Osborne
- Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
| | - S. Thayumanavan
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Molecular and Cellular Biology Program, University of Massachusetts, Amherst, Massachusetts 01003, USA
- Center for Bioactive Delivery, Institute for Applied Life Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA
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115
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Capone B, Likos CN, Coluzza I. Grafting density induced reentrant disorder-order-disorder transition in planar di-block copolymer brushes. SOFT MATTER 2021; 17:4719-4729. [PMID: 33710237 DOI: 10.1039/d0sm02154g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
By means of multiscale molecular simulation, we show that solvophilic-solvophobic AB diblock copolymer brushes in the semi-dilute regime present a re-entrant disorder/order/disorder transition. The latter is fully controllable through two parameters: the grafting density and the solvophobic to solvophilic ratio of the tethered macromolecules. Upon increasing density, chains first aggregate into patches, then further order into a crystalline phase and finally melt into a disordered phase. We demonstrate that the order/disorder transition can be explained through the peculiar properties of the aggregates: upon increasing density, the aggregation number grows as expected. On the contrary, their projection on the plane shrinks, thus melting the emergent ordered phase. Such a density dependent shrinkage, seen for the first time as the cause to an order/disorder phase transition, is as a consequence of the entropic/enthalpic competition that characterises the hierarchical self-assembly of the brush.
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Affiliation(s)
- Barbara Capone
- Science Department, University of Roma Tre, Via della Vasca Navale 84, 00146, Rome, Italy.
| | - Christos N Likos
- Faculty of Physics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria
| | - Ivan Coluzza
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramon 182, 20014, Donostia San Sebastián, Spain
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116
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Babutan I, Lucaci AD, Botiz I. Antimicrobial Polymeric Structures Assembled on Surfaces. Polymers (Basel) 2021; 13:1552. [PMID: 34066135 PMCID: PMC8150949 DOI: 10.3390/polym13101552] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/08/2021] [Accepted: 05/09/2021] [Indexed: 12/16/2022] Open
Abstract
Pathogenic microbes are the main cause of various undesired infections in living organisms, including humans. Most of these infections are favored in hospital environments where humans are being treated with antibiotics and where some microbes succeed in developing resistance to such drugs. As a consequence, our society is currently researching for alternative, yet more efficient antimicrobial solutions. Certain natural and synthetic polymers are versatile materials that have already proved themselves to be highly suitable for the development of the next-generation of antimicrobial systems that can efficiently prevent and kill microbes in various environments. Here, we discuss the latest developments of polymeric structures, exhibiting (reinforced) antimicrobial attributes that can be assembled on surfaces and coatings either from synthetic polymers displaying antiadhesive and/or antimicrobial properties or from blends and nanocomposites based on such polymers.
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Affiliation(s)
- Iulia Babutan
- Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, 42 Treboniu Laurian Str., 400271 Cluj-Napoca, Romania;
- Faculty of Physics, Babeș-Bolyai University, 1 M. Kogălniceanu Str., 400084 Cluj-Napoca, Romania
| | - Alexandra-Delia Lucaci
- George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu Mureș, 38 Gheorghe Marinescu Str., 540142 Târgu Mureș, Romania;
| | - Ioan Botiz
- Interdisciplinary Research Institute on Bio-Nano-Sciences, Babeș-Bolyai University, 42 Treboniu Laurian Str., 400271 Cluj-Napoca, Romania;
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117
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Zhang Y, Yu L, Wang J, Li S, Gan H, Xue Z. Fabrication of polymer electrolyte via lithium salt-induced surface-initiated radical polymerization for lithium metal batteries. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119210] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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118
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Zholdassov YS, Valles DJ, Uddin S, Korpanty J, Gianneschi NC, Braunschweig AB. Orthogonal Images Concealed Within a Responsive 6-Dimensional Hypersurface. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100803. [PMID: 33876463 DOI: 10.1002/adma.202100803] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 02/24/2021] [Indexed: 06/12/2023]
Abstract
A photochemical printer, equipped with a digital micromirror device (DMD), leads to the rapid elucidation of the kinetics of the surface-initiated atom-transfer radical photopolymerization of N,N-dimethylacrylamide (DMA) and N-isopropylacrylamide (NIPAM) monomers. This effort reveals conditions where polymer brushes of identical heights can be grown from each monomer. With these data, hidden images are created that appear upon heating the substrate above the lower critical solution temperature (LCST) of polyNIPAM. By introducing a third monomer, methacryloxyethyl thiocarbamoyl rhodamine B, a second, orthogonal image appears upon UV-irradiation. With these studies, it is shown how a new photochemical printer accelerates discovery, creates arbitrary patterns, and addresses long-standing problems in brush polymer and surface chemistry. With this technology in hand a new method is demonstrated to encrypt data within hypersurfaces.
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Affiliation(s)
- Yerzhan S Zholdassov
- The Advanced Science Research Center at the Graduate Center of the City University of the New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, NY, 10065, USA
- The Ph.D. Program in Chemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, NY, 10016, USA
| | - Daniel J Valles
- The Advanced Science Research Center at the Graduate Center of the City University of the New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, NY, 10065, USA
- The Ph.D. Program in Chemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, NY, 10016, USA
| | - Samiha Uddin
- The Advanced Science Research Center at the Graduate Center of the City University of the New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, NY, 10065, USA
| | - Joanna Korpanty
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Nathan C Gianneschi
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - Adam B Braunschweig
- The Advanced Science Research Center at the Graduate Center of the City University of the New York, 85 St. Nicholas Terrace, New York, NY, 10031, USA
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, NY, 10065, USA
- The Ph.D. Program in Chemistry, Graduate Center of the City University of New York, 365 Fifth Avenue, New York, NY, 10016, USA
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119
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Maity S, Gangan AS, Anshu A, V Valappil RR, Chakraborty B, Ramaniah LM, Srinivasan V. Pressure induced topochemical polymerization of solid acrylamide facilitated by anisotropic response of the hydrogen bond network. Phys Chem Chem Phys 2021; 23:9448-9456. [PMID: 33885052 DOI: 10.1039/d0cp04993j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pressure induced polymerization of molecular solids is an appealing route to obtain pure, crystalline polymers without the need for radical initiators. Here, we report a detailed density functional theory (DFT) study of the structural and chemical changes that occur in defect free solid acrylamide, a hydrogen bonded crystal, when it is subjected to hydrostatic pressures. While our calculations are able to reproduce experimentally measured pressure dependent spectroscopic features in the 0-20 GPa range, our atomistic analysis predicts polymerization in acrylamide at a pressure of ∼23 GPa at 0 K albeit through large enthalpy barriers. Interestingly, we find that the two-dimensional hydrogen bond network in acrylamide templates topochemical polymerization by aligning the atoms through an anisotropic response at low pressures. This results not only in conventional C-C, but also unusual C-O polymeric linkages, as well as a new hydrogen bonded framework, with both N-HO and C-HO bonds. Using a simple model for thermal effects, we also show that at 300 K, higher pressures significantly accelerate the transformation into polymers by lowering the barrier. Thus, application of pressure offers an alternative route for topochemical polymerization when higher temperatures are undesirable.
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Affiliation(s)
- Sayan Maity
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462 066, India.
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120
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Kinali-Demirci S. Cross-Linked Polymer Brushes Containing N-Halamine Groups for Antibacterial Surface Applications. Polymers (Basel) 2021; 13:1269. [PMID: 33919685 PMCID: PMC8069774 DOI: 10.3390/polym13081269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 12/11/2022] Open
Abstract
Microbial contamination is a significant issue in various areas, especially in the food industry. In this study, to overcome microbial contamination, cross-linked polymer brushes containing N-halamine were synthesized, characterized, and investigated for antibacterial properties. The cross-linked polymer brushes with different N-halamine ratios were synthesized by in-situ cross-linking methods with reversible addition-fragmentation chain transfer (RAFT) polymerization using a bifunctional cross-linker. The RAFT agent was immobilized on an amine-terminated silicon wafer surface and utilized in the surface-initiated RAFT polymerization of [N-(2-methyl-1-(4-methyl-2,5-dioxoimidazolidin-4-yl)propane-2-yl)acrylamide] (hydantoin acrylamide, HA), and N-(2-hydroxypropyl)methacrylamide) (HPMA) monomers. Measurement of film thickness, contact angle, and surface morphology of the resulting surfaces were used to confirm the structural characteristics of cross-linked polymer brushes. The chlorine content of the three different surfaces was determined to be approximately 8-31 × 1013 atoms/cm2. At the same time, it was also observed that the activation-deactivation efficiency decreased during the recharge-discharge cycles. However, it was determined that the prepared N-halamine-containing cross-linked polymer brushes inactivated approximately 96% of Escherichia coli and 91% of Staphylococcus aureus. In conclusion, in the framework of this study, high-performance brush gels were produced that can be used on antibacterial surfaces.
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Affiliation(s)
- Selin Kinali-Demirci
- Department of Chemistry, Amasya University, Ipekkoy, 05100 Amasya, Turkey;
- Department of Biotechnology, Amasya University, Ipekkoy, 05100 Amasya, Turkey
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121
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Ehtiati K, Z. Moghaddam S, Daugaard AE, Thormann E. Crucial Nonelectrostatic Effects on Polyelectrolyte Brush Behavior. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02526] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Koosha Ehtiati
- Department of Chemistry, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Saeed Z. Moghaddam
- Department of Chemistry, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Anders E. Daugaard
- Danish Polymer Center, Department of Chemical and Biochemical Engineering, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
| | - Esben Thormann
- Department of Chemistry, Technical University of Denmark, Kgs. Lyngby 2800, Denmark
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122
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Functionalization of Single-Walled Carbon Nanotubes with End-Capped Polystyrene via a Single-Step Diels-Alder Cycloaddition. Polymers (Basel) 2021; 13:polym13071169. [PMID: 33917281 PMCID: PMC8038725 DOI: 10.3390/polym13071169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 11/17/2022] Open
Abstract
A facile, single-step, [4+2] Diels–Alder cycloaddition reaction for the surface functionalization of single-walled carbon nanotubes (SWNTs) with end-capped polystyrene chains is presented. The thermal cycloaddition reaction took place at high temperature (~230 °C) without any catalyst between the sp2 network of carbon nanotubes, which acted as dienophile, and the diphenylethylene cyclobutene (DPE-CB) terminal group of the polystyrene chain. Anionic polymerization was employed for the synthesis of the polystyrene macromolecule, and successful and quantitative end-capping reaction with the DPE-CB molecule was confirmed by matrix-assisted laser desorption/ionization time of flight mass spectroscopy. Thermogravimetric analysis revealed the wt % of the grafted macromolecule on the CNT surface as well as the grafting density of the polymer chains on the SWNTs (0.027 chains nm−2). Direct evidence for the surface functionalization and the presence of thin polystyrene film was obtained by transmission electron microscopy (TEM) and by atomic force microscopy (AFM).
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123
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Surface-initiated ARGET ATRP of poly(glycidyl methacrylate) from macroporous hydrogels via oil-in-water high internal phase emulsion templates for specific capture of Enterovirus 71. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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124
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Saxena S, Kandasubramanian B. Glycopolymers in molecular recognition, biomimicking and glycotechnology: a review. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1900181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shatakshi Saxena
- Centre for Converging Technologies, University of Rajasthan, Jaipur, India
| | - Balasubramanian Kandasubramanian
- Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Ministry of Defence, Pune, India
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125
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Faubel JL, Wei W, Curtis JE. Sculpting Enzyme-Generated Giant Polymer Brushes. ACS NANO 2021; 15:4268-4276. [PMID: 33617223 DOI: 10.1021/acsnano.0c06882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We present a simple yet versatile method for sculpting ultra-thick, enzyme-generated hyaluronan polymer brushes with light. The patterning mechanism is indirect, driven by reactive oxygen species created by photochemical interactions with the underlying substrate. The reactive oxygen species disrupt the enzyme hyaluronan synthase, which acts as the growth engine and anchor of the end-grafted polymers. Spatial control over the grafting density is achieved through inactivation of the enzyme in an energy density dose-dependent manner, before or after polymerization of the brush. Quantitative variation of the brush height is possible using visible wavelengths and illustrated by the creation of a brush gradient ranging from 0 to 6 μm in height over a length of 56 μm (approximately a 90 nm height increase per micron). Building upon the fundamental insights presented in this study, this work lays the foundation for the flexible and quantitative sculpting of complex three-dimensional landscapes in enzyme-generated hyaluronan brushes.
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Affiliation(s)
- Jessica L Faubel
- School of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, Georgia 30332, United States
| | - Wenbin Wei
- School of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, Georgia 30332, United States
| | - Jennifer E Curtis
- School of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, Georgia 30332, United States
- Parker H. Petit Institute for Bioengineering and Biosciences, 315 Ferst Dr NW, Atlanta, Georgia 30332, United States
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126
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Mushtaq R, Abbas MA, Mushtaq S, Ahmad NM, Khan NA, Khan AU, Hong W, Sadiq R, Jiang Z. Antifouling and Flux Enhancement of Reverse Osmosis Membrane by Grafting Poly (3-Sulfopropyl Methacrylate) Brushes. MEMBRANES 2021; 11:213. [PMID: 33803777 PMCID: PMC8003146 DOI: 10.3390/membranes11030213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/30/2020] [Accepted: 12/03/2020] [Indexed: 12/24/2022]
Abstract
A commercial thin film composite (TFC) polyamide (PA) reverse osmosis membrane was grafted with 3-sulfopropyl methacrylate potassium (SPMK) to produce PA-g-SPMK by atom transfer radical polymerization (ATRP). The grafting of PA was done at varied concentrations of SPMK, and its effect on the surface composition and morphology was studied by Fourier-Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), optical profilometry, and contact angle analysis. The grafting of hydrophilic ionically charged PSPMK polymer brushes having acrylate and sulfonate groups resulted in enhanced hydrophilicity rendering a reduction of contact angle from 58° of pristine membrane sample labeled as MH0 to 10° for a modified membrane sample labeled as MH3. Due to the increased hydrophilicity, the flux rate rises from 57.1 L m-2 h-1 to 71.2 L m-2 h-1, and 99% resistance against microbial adhesion (Escherichia coli and Staphylococcus aureus) was obtained for MH3 after modification.
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Affiliation(s)
- Reema Mushtaq
- Polymer Research Lab, School of Chemical and Material Engineering, NUST, H-12, Islamabad 44000, Pakistan; (R.M.); (M.A.A.); (S.M.)
| | - Muhammad Asad Abbas
- Polymer Research Lab, School of Chemical and Material Engineering, NUST, H-12, Islamabad 44000, Pakistan; (R.M.); (M.A.A.); (S.M.)
| | - Shehla Mushtaq
- Polymer Research Lab, School of Chemical and Material Engineering, NUST, H-12, Islamabad 44000, Pakistan; (R.M.); (M.A.A.); (S.M.)
| | - Nasir M. Ahmad
- Polymer Research Lab, School of Chemical and Material Engineering, NUST, H-12, Islamabad 44000, Pakistan; (R.M.); (M.A.A.); (S.M.)
| | - Niaz Ali Khan
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (W.H.); (Z.J.)
| | - Asad U. Khan
- Department of Chemical Engineering, COMSATS University Islamabad, Lahore Campus, Lahore 54000, Pakistan;
| | - Wu Hong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (W.H.); (Z.J.)
| | - Rehan Sadiq
- School of Engineering, University of British Columbia (Okanagan), 3333 University Way, Kelowna, BC V1V 1V7, Canada;
| | - Zhongyi Jiang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; (W.H.); (Z.J.)
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127
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Asadi M, Khalili M, Lotfi H, Vaghefi Moghaddam S, Zarghami N, André H, Alizadeh E. Liver bioengineering: Recent trends/advances in decellularization and cell sheet technologies towards translation into the clinic. Life Sci 2021; 276:119373. [PMID: 33744324 DOI: 10.1016/j.lfs.2021.119373] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 02/07/2023]
Abstract
Development of novel technologies provides the best tissue constructs engineering and maximizes their therapeutic effects in regenerative therapy, especially for liver dysfunctions. Among the currently investigated approaches of tissue engineering, scaffold-based and scaffold-free tissues are widely suggested for liver regeneration. Analogs of liver acellular extracellular matrix (ECM) are utilized in native scaffolds to increase the self-repair and healing ability of organs. Native ECM analog could improve liver repairing through providing the supportive framework for cells and signaling molecules, exerting normal biomechanical, biochemical, and physiological signal complexes. Recently, innovative cell sheet technology is introduced as an alternative for conventional tissue engineering with the advantage of fewer scaffold restrictions and cell culture on a Thermo-Responsive Polymer Surface. These sheets release the layered cells through a temperature-controlled procedure without enzymatic digestion, while preserving the cell-ECM contacts and adhesive molecules on cell-cell junctions. In addition, several novelties have been introduced into the cell sheet and decellularization technologies to aid cell growth, instruct differentiation/angiogenesis, and promote cell migration. In this review, recent trends, advancements, and issues linked to translation into clinical practice are dissected and compared regarding the decellularization and cell sheet technologies for liver tissue engineering.
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Affiliation(s)
- Maryam Asadi
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mostafa Khalili
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hajie Lotfi
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Physiology, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Nosratollah Zarghami
- Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Helder André
- Department of Clinical Neuroscience, St. Erik Eye Hospital, Karolinska Institute, 11282 Stockholm, Sweden
| | - Effat Alizadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Medical Biotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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128
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Surface modification by poly(ethylene glycol) with different end-grafted groups: Experimental and theoretical study. Biointerphases 2021; 16:021002. [PMID: 33726496 DOI: 10.1116/6.0000647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Dihydroxyphenylalanine (DOPA) is extensively reported to be a surface-independent anchor molecule in bioadhesive surface modification and antifouling biomaterial fabrication. However, the mechanisms of DOPA adsorption on versatile substrates and the comparison between experimental results and theoretical results are less addressed. We report the adsorption of DOPA anchored monomethoxy poly(ethylene glycol) (DOPA-mPEG) on substrates and surface wettability as well as antifouling property in comparison with thiol and hydroxyl anchored mPEG (mPEG-SH and mPEG-OH). Gold and hydroxylated silicon were used as model substrates to study the adsorptions of mPEGs. The experimental results showed that the DOPA-mPEG showed higher affinity to both gold and silicon wafers, and the DOPA-mPEG modified surfaces had higher resistance to protein adsorption than those of mPEG-SH and mPEG-OH. It is revealed that the surface wettability is primary for surface fouling, while polymer flexibility is the secondary parameter. We present ab initio calculations of the adsorption of mEGs with different end-functionalities on Au and hydroxylated silicon wafer (Si-OH), where the binding energies are obtained. It is established that monomethoxy ethylene glycol (mEG) with DOPA terminal DOPA-mEG is clearly favored for the adsorption with both gold and Si-OH surfaces due to the bidentate Au-O interactions and the bidentate O-H bond interactions, in agreement with experimental evidence.
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129
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Li D, Xu L, Wang J, Gautrot JE. Responsive Polymer Brush Design and Emerging Applications for Nanotheranostics. Adv Healthc Mater 2021; 10:e2000953. [PMID: 32893474 DOI: 10.1002/adhm.202000953] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/11/2020] [Indexed: 12/29/2022]
Abstract
Responsive polymer brushes are a category of polymer brushes that are capable of conformational and chemical changes in response to external stimuli. They offer unique opportunities for the control of bio-nano interactions due to the precise control of chemical and structural parameters such as the brush thickness, density, chemistry, and architecture. The design of responsive brushes at the surface of nanomaterials for theranostic applications has developed rapidly. These coatings can be generated from a very broad range of nanomaterials, without compromising their physical, photophysical, and imaging properties. Although the use of responsive brushes for nanotheranostic remains in its early stages, in this review, the aim is to present how the systems developed to date can be combined to control sensing, imaging, and controlled delivery of therapeutics. The recent developments for such design and associated methods for the synthesis of responsive brushes are discussed. The responsive behaviors of homo polymer brushes and brushes with more complex architectures are briefly reviewed, before the applications of responsive brushes as smart delivery systems are discussed. Finally, the recent work is summarized on the use of responsive polymer brushes as novel biosensors and diagnostic tools for the detection of analytes and biomarkers.
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Affiliation(s)
- Danyang Li
- School of Cancer and Pharmaceutical Sciences King's College London 150 Stamford Street London SE1 9NH UK
- Institute of Bioengineering Queen Mary University of London Mile End Road London E1 4NS UK
- School of Engineering and Materials Science Queen Mary University of London Mile End Road London E1 4NS UK
| | - Lizhou Xu
- Department of Materials Imperial College London London SW7 2AZ UK
| | - Jing Wang
- School of Life Sciences Northwestern Polytechnical University Xi'an 710072 China
| | - Julien E. Gautrot
- Institute of Bioengineering Queen Mary University of London Mile End Road London E1 4NS UK
- School of Engineering and Materials Science Queen Mary University of London Mile End Road London E1 4NS UK
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130
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New methods in polymer brush synthesis: Non-vinyl-based semiflexible and rigid-rod polymer brushes. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2021.101361] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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131
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Lee K, Corrigan N, Boyer C. Rapid High‐Resolution 3D Printing and Surface Functionalization via Type I Photoinitiated RAFT Polymerization. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016523] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kenny Lee
- Cluster for Advanced Macromolecular Design School of Chemical Engineering University of New South Wales Sydney NSW 2052 Australia
| | - Nathaniel Corrigan
- Cluster for Advanced Macromolecular Design and Australian Centre for NanoMedicine School of Chemical Engineering University of New South Wales Sydney NSW 2052 Australia
| | - Cyrille Boyer
- Cluster for Advanced Macromolecular Design and Australian Centre for NanoMedicine School of Chemical Engineering University of New South Wales Sydney NSW 2052 Australia
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132
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Lee K, Corrigan N, Boyer C. Rapid High‐Resolution 3D Printing and Surface Functionalization via Type I Photoinitiated RAFT Polymerization. Angew Chem Int Ed Engl 2021; 60:8839-8850. [DOI: 10.1002/anie.202016523] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 01/15/2021] [Indexed: 12/25/2022]
Affiliation(s)
- Kenny Lee
- Cluster for Advanced Macromolecular Design School of Chemical Engineering University of New South Wales Sydney NSW 2052 Australia
| | - Nathaniel Corrigan
- Cluster for Advanced Macromolecular Design and Australian Centre for NanoMedicine School of Chemical Engineering University of New South Wales Sydney NSW 2052 Australia
| | - Cyrille Boyer
- Cluster for Advanced Macromolecular Design and Australian Centre for NanoMedicine School of Chemical Engineering University of New South Wales Sydney NSW 2052 Australia
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133
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Kim SY, Seo HJ, Kim S, Cho WK. Formation of Various Polymeric Films via
Surface‐Initiated ARGET ATRP
on Silicon Substrates. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12256] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Su Youn Kim
- Department of Chemistry Chungnam National University Daejeon 34134 Republic of Korea
| | - Hyun Ji Seo
- Department of Chemistry Chungnam National University Daejeon 34134 Republic of Korea
| | - Sunhee Kim
- Department of Chemistry Chungnam National University Daejeon 34134 Republic of Korea
| | - Woo Kyung Cho
- Department of Chemistry Chungnam National University Daejeon 34134 Republic of Korea
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134
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Johnson EC, Gresham IJ, Prescott SW, Nelson A, Wanless EJ, Webber GB. The direction of influence of specific ion effects on a pH and temperature responsive copolymer brush is dependent on polymer charge. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123287] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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135
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Pastorino C, Müller M. Liquid and Droplet Transport in Brush-Coated Cylindrical Nanochannels: Brush-Assisted Droplet Formation. J Phys Chem B 2021; 125:442-449. [PMID: 33400523 DOI: 10.1021/acs.jpcb.0c09189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We study, by coarse-grained molecular dynamics simulations, equilibrium and flow properties of a liquid in cylindrical nanochannels, coated with polymer brushes. The parameters of the interaction potential model confer a chemical incompatibility between brush monomers and liquid particles. First, we study cylindrical channels whose radii are larger than the brush height and a continuous column of liquid forms at the center of the channel. These results are contrasted to the limiting case in which the radius of the cylinder is comparable to the brush height. In this second case, the grafted polymers interact across the channel and "close" it. We observe a train of droplets as the stable liquid morphology. The droplet size is comparable to the cylinder radius. By applying a constant body force onto the liquid, we induce a Poiseuille-like flow and investigate the morphology and flow rate as a function of driving force. Upon increasing the driving force, we encounter a nonequilibrium transition from a closed channel with slowly moving droplets to a flowing liquid thread at the center. The switching between these two states is reversible.
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Affiliation(s)
- C Pastorino
- Departamento de Física de la Materia Condensada, Centro Atómico Constituyentes, CNEA, Av.Gral. Paz 1499, B1650 San Martín, Pcia. de Buenos Aires, Argentina.,Instituto de Nanociencia y Nanotecnología CONICET-CNEA, B1650 Buenos Aires, Argentina
| | - M Müller
- Institut für Theoretische Physik, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
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136
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Jung HS, Neuman KC. Surface Modification of Fluorescent Nanodiamonds for Biological Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:E153. [PMID: 33435443 PMCID: PMC7826955 DOI: 10.3390/nano11010153] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/29/2020] [Accepted: 01/07/2021] [Indexed: 12/12/2022]
Abstract
Fluorescent nanodiamonds (FNDs) are a new class of carbon nanomaterials that offer great promise for biological applications such as cell labeling, imaging, and sensing due to their exceptional optical properties and biocompatibility. Implementation of these applications requires reliable and precise surface functionalization. Although diamonds are generally considered inert, they typically possess diverse surface groups that permit a range of different functionalization strategies. This review provides an overview of nanodiamond surface functionalization methods including homogeneous surface termination approaches (hydrogenation, halogenation, amination, oxidation, and reduction), in addition to covalent and non-covalent surface modification with different functional moieties. Furthermore, the subsequent coupling of biomolecules onto functionalized nanodiamonds is reviewed. Finally, biomedical applications of nanodiamonds are discussed in the context of functionalization.
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Affiliation(s)
| | - Keir C. Neuman
- Laboratory of Single Molecule Biophysics, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA;
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137
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Valles DJ, Zholdassov YS, Braunschweig AB. Evolution and applications of polymer brush hypersurface photolithography. Polym Chem 2021. [DOI: 10.1039/d1py01073e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Hypersurface photolithography creates arbitrary polymer brush patterns with independent control over feature diameter, height, and spacing between features, while controlling composition along a polymer chain and between features.
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Affiliation(s)
- Daniel J. Valles
- Advanced Science Research Center at the Graduate Center of the City University of New York, 85 St Nicholas Terrace, New York, NY 10031, USA
- Department of Chemistry, Hunter College, 695 Park Ave, New York, NY 10065, USA
- PhD Program in Chemistry, Graduate Center of the City University of New York, 365 5th Ave, New York, NY 10016, USA
| | - Yerzhan S. Zholdassov
- Advanced Science Research Center at the Graduate Center of the City University of New York, 85 St Nicholas Terrace, New York, NY 10031, USA
- Department of Chemistry, Hunter College, 695 Park Ave, New York, NY 10065, USA
- PhD Program in Chemistry, Graduate Center of the City University of New York, 365 5th Ave, New York, NY 10016, USA
| | - Adam B. Braunschweig
- Advanced Science Research Center at the Graduate Center of the City University of New York, 85 St Nicholas Terrace, New York, NY 10031, USA
- Department of Chemistry, Hunter College, 695 Park Ave, New York, NY 10065, USA
- PhD Program in Chemistry, Graduate Center of the City University of New York, 365 5th Ave, New York, NY 10016, USA
- PhD Program in Biochemistry, Graduate Center of the City University of New York, 365 5th Ave, New York, NY 10016, USA
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138
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Cho MK, Seo HJ, Lee JH, Cho WK, Son KS. Polymer brush growth by oxygen-initiated RAFT polymerization on various substrates. Polym Chem 2021. [DOI: 10.1039/d1py01195b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We developed a user-friendly method for growing polymer brushes on various substrates in the presence of air by O2-SI-RAFT polymerization and mussel-inspired surface chemistry. In particular, PHEMA brushes grew to 856 nm on the titanium substrate.
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Affiliation(s)
- Min Ki Cho
- Department of Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Hyun Ji Seo
- Department of Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Ji Hoon Lee
- Department of Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Woo Kyung Cho
- Department of Chemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Kyung-sun Son
- Department of Chemistry, Chungnam National University, Daejeon, Republic of Korea
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139
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Gu H, Liu Y, Wang L, Zhang B, Yin D, Zhang Q. Polymer
brush‐grafted
monolithic macroporous
polyHIPEs
obtained by
surface‐initiated ARGET ATRP
and heparinized for Enterovirus 71 purification. J Appl Polym Sci 2020. [DOI: 10.1002/app.50427] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Huimin Gu
- School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an China
| | - Yibin Liu
- School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an China
| | - Lichun Wang
- Institute of Medical Biology Chinese Academy of Medical Sciences Kun'ming China
| | - Baoliang Zhang
- School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an China
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology Northwestern Polytechnical University Xi'an China
| | - Dezhong Yin
- School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an China
| | - Qiuyu Zhang
- School of Chemistry and Chemical Engineering Northwestern Polytechnical University Xi'an China
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology Northwestern Polytechnical University Xi'an China
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140
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Jungmann P, Kreer T, Sommer JU, Paturej J. Conformational Properties of End-Grafted Bottlebrush Polymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01586] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Paul Jungmann
- Leibniz-Institut für Polymerforschung Dresden e.V., 01069 Dresden, Germany
| | - Torsten Kreer
- Institut für Physik, Johannes Gutenberg-Universitä, 55128 Mainz, Germany
| | - Jens-Uwe Sommer
- Leibniz-Institut für Polymerforschung Dresden e.V., 01069 Dresden, Germany
- Institute for Theoretical Physics, Technische Universität Dresden, 01069 Dresden, Germany
| | - Jarosław Paturej
- Leibniz-Institut für Polymerforschung Dresden e.V., 01069 Dresden, Germany
- Institute of Physics, University of Silesia, 41-500 Chorzów, Poland
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141
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Rodchenko S, Amirova A, Kurlykin M, Tenkovtsev A, Milenin S, Filippov A. Amphiphilic Molecular Brushes with Regular Polydimethylsiloxane Backbone and Poly-2-isopropyl-2-oxazoline Side Chains. 2. Self-Organization in Aqueous Solutions on Heating. Polymers (Basel) 2020; 13:E31. [PMID: 33374766 PMCID: PMC7796000 DOI: 10.3390/polym13010031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/18/2020] [Accepted: 12/20/2020] [Indexed: 01/18/2023] Open
Abstract
The behavior of amphiphilic molecular brushes in aqueous solutions on heating was studied by light scattering and turbidimetry. The main chain of the graft copolymers was polydimethylsiloxane, and the side chains were thermosensitive poly-2-isopropyl-2-oxazoline. The studied samples differed in the length of the grafted chains (polymerization degrees were 14 and 30) and, accordingly, in the molar fraction of the hydrophobic backbone. The grafting density of both samples was 0.6. At low temperatures, macromolecules and aggregates, which formed due to the interaction of main chains, were observed in solutions. At moderate temperatures, heating solutions of the sample with short side chains led to aggregation due to dehydration of poly-2-isopropyl-2-oxazoline and the formation of intermolecular hydrogen bonds. In the case of the brush with long grafted chains, dehydration caused the formation of intramolecular hydrogen bonds and the compaction of molecules and aggregates. The lower critical solution temperature for solutions of the sample with long side chains was higher than LCST for the sample with short side chains. It was shown that the molar fraction of the hydrophobic component and the intramolecular density are the important factors determining the LCST behavior of amphiphilic molecular brushes in aqueous solutions.
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Affiliation(s)
- Serafim Rodchenko
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, 199004 Saint Petersburg, Russia; (A.A.); (M.K.); (A.T.); (A.F.)
| | - Alina Amirova
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, 199004 Saint Petersburg, Russia; (A.A.); (M.K.); (A.T.); (A.F.)
| | - Mikhail Kurlykin
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, 199004 Saint Petersburg, Russia; (A.A.); (M.K.); (A.T.); (A.F.)
| | - Andrey Tenkovtsev
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, 199004 Saint Petersburg, Russia; (A.A.); (M.K.); (A.T.); (A.F.)
| | - Sergey Milenin
- Enikolopov Institute of Synthetic Polymeric Materials of the Russian Academy of Sciences, Profsoyuznaya, 70, 117393 Moscow, Russia;
| | - Alexander Filippov
- Institute of Macromolecular Compounds of the Russian Academy of Sciences, Bolshoy pr., 31, 199004 Saint Petersburg, Russia; (A.A.); (M.K.); (A.T.); (A.F.)
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142
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Ng G, Li M, Yeow J, Jung K, Pester CW, Boyer C. Benchtop Preparation of Polymer Brushes by SI-PET-RAFT: The Effect of the Polymer Composition and Structure on Inhibition of a Pseudomonas Biofilm. ACS APPLIED MATERIALS & INTERFACES 2020; 12:55243-55254. [PMID: 33233878 DOI: 10.1021/acsami.0c15221] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We report a high-throughput method for producing surface-tethered polymeric brushes on glass substrates via surface-initiated photoinduced electron transfer-reversible addition-fragmentation chain transfer polymerization (SI-PET-RAFT). Due to its excellent oxygen tolerance, SI-PET-RAFT allows brush growth using low reagent volumes (30 μL) without prior degassing. An initial 28 homopolymer brush library was successfully prepared and screened with respect to their antifouling performance. The high-throughput approach was further exploited to expand the library to encompass statistical, gradient, and block architectures to investigate the effect of monomer composition and distribution using two monomers of disparate performance. In this manner, the degree of attachment from Gram-negative Pseudomonas aeruginosa (PA) bacterial biofilms could be tuned between the bounds set by the homopolymer brushes.
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Affiliation(s)
- Gervase Ng
- Centre for Advanced Macromolecular Design and Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052 Australia
| | - Mingxiao Li
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Jonathan Yeow
- Centre for Advanced Macromolecular Design and Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052 Australia
| | - Kenward Jung
- Centre for Advanced Macromolecular Design and Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052 Australia
| | - Christian W Pester
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design and Australian Centre for NanoMedicine, School of Chemical Engineering, The University of New South Wales, Sydney, New South Wales 2052 Australia
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143
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Heichel DL, Vy NCH, Ward SP, Adamson DH, Burke KA. Controlled radical polymerization of hydrophilic and zwitterionic brush-like polymers from silk fibroin surfaces. J Mater Chem B 2020; 8:10392-10406. [PMID: 33112356 DOI: 10.1039/d0tb01990a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bombyx mori silk fibroin is a fibrous protein whose tunable properties and biocompatibility have resulted in its utility in a wide-variety of applications, including as drug delivery vehicles, wound dressings, and tissue engineering scaffolds. Control of protein and cell attachment is vital to the performance of biomaterials, but silk fibroin is mostly hydrophobic and interacts nonspecifically with cells and proteins. Silk functionalised with hydrophilic polymers reduces attachment, but the low number of reactive sites makes achieving a uniform conjugation a persistent challenge. This work presents a new approach to grow brush-like polymers from the surface of degradable silk films, where the films were enriched with hydroxyl groups, functionalised with an initiator, and finally reacted with acrylate monomers using atom transfer radical polymerisation. Two different routes to hydroxyl enrichment were investigated, one involving reaction with ethylene oxide (EO) and the other using a two-step photo-catalysed oxidation reaction. Both routes increased surface hydrophilicity, and hydrophilic monomers containing either uncharged (poly(ethylene glycol), PEG) pendant groups or zwitterionic pendant groups were polymerised from the surfaces. The initial processing of the films to induce beta sheet structures was found to impact the success of the polymerizations. Compared to the EO modified or unmodified silk surfaces, the oxidation reaction resulted in more polymer conjugation and the surfaces appear more uniform. Mesenchymal stem cell and protein attachment were the lowest on polymers grown from oxidised surfaces. PEG-containing brush-like polymers displayed lower protein attachment than surfaces conjugated with PEG using a previously reported "grafting to" method, but polymers containing zwitterionic side chains displayed both the lowest contact angles and the lowest cell and protein attachment. This finding may arise from the interactions of the zwitterionic pendant groups through their permanent dipoles and is an important finding because PEG is susceptible to oxidative damage that can reduce efficacy over time. These modified silk materials with lower cell and protein attachments are envisioned to find utility when enhanced diffusion around surfaces is required, such as in drug delivery implants.
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Affiliation(s)
- Danielle L Heichel
- Polymer Program, Institute of Materials Science, University of Connecticut, 97 North Eagleville Road Unit 3136, Storrs, CT 06269-3136, USA
| | - Ngoc Chau H Vy
- Polymer Program, Institute of Materials Science, University of Connecticut, 97 North Eagleville Road Unit 3136, Storrs, CT 06269-3136, USA
| | - Shawn P Ward
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road Unit 3060, Storrs, CT 06269-3060, USA
| | - Douglas H Adamson
- Polymer Program, Institute of Materials Science, University of Connecticut, 97 North Eagleville Road Unit 3136, Storrs, CT 06269-3136, USA and Department of Chemistry, University of Connecticut, 55 North Eagleville Road Unit 3060, Storrs, CT 06269-3060, USA
| | - Kelly A Burke
- Polymer Program, Institute of Materials Science, University of Connecticut, 97 North Eagleville Road Unit 3136, Storrs, CT 06269-3136, USA and Department of Chemical and Biomolecular Engineering, University of Connecticut, 191 Auditorium Road Unit 3222, Storrs, CT 06269-3222, USA. and Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Road Unit 3247, Storrs, CT 06269-3247, USA
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144
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Reversible-deactivation radical polymerization (Controlled/living radical polymerization): From discovery to materials design and applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2020.101311] [Citation(s) in RCA: 302] [Impact Index Per Article: 75.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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145
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Li X, Liu Y, Sun Y. Development of poly(methacrylate)-grafted Sepharose FF for cation-exchange chromatography of proteins. J Chromatogr A 2020; 1634:461669. [DOI: 10.1016/j.chroma.2020.461669] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 10/25/2020] [Accepted: 10/27/2020] [Indexed: 12/26/2022]
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146
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Vy NCH, Liyanage CD, Williams RML, Fang JM, Kerns PM, Schniepp HC, Adamson DH. Surface-Initiated Passing-through Zwitterionic Polymer Brushes for Salt-Selective and Antifouling Materials. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01891] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ngoc Chau H. Vy
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136, United States
| | - Chinthani D. Liyanage
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3036, United States
| | - Robert M. L. Williams
- Department of Materials Science and Engineering, University of Connecticut, Storrs, Connecticut 06269-3136, United States
| | - Justin M. Fang
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269-3247, United States
| | - Peter M. Kerns
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3036, United States
| | - Hannes C. Schniepp
- Department of Applied Science, The College of William and Mary, Williamsburg, Virginia 23187-8795, United States
| | - Douglas H. Adamson
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3136, United States
- Department of Chemistry, University of Connecticut, Storrs, Connecticut 06269-3036, United States
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147
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Amphiphilic molecular brushes with regular polydimethylsiloxane backbone and poly-2-isopropyl-2-oxazoline side chains. 1. Synthesis, characterization and conformation in solution. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110035] [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]
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148
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Johnson EC, Willott JD, Gresham IJ, Murdoch TJ, Humphreys BA, Prescott SW, Nelson A, de Vos WM, Webber GB, Wanless EJ. Enrichment of Charged Monomers Explains Non-monotonic Polymer Volume Fraction Profiles of Multi-stimulus Responsive Copolymer Brushes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:12460-12472. [PMID: 33105998 DOI: 10.1021/acs.langmuir.0c01502] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Multi-stimulus responsive poly(2-(2-methoxyethoxy)ethyl methacrylate-co-2-(diethylamino)ethyl methacrylate) [P(MEO2MA-co-DEA)] 80:20 mol % copolymer brushes were synthesized on planar silica substrates via surface-initiated activators continuously regenerated via electron transfer atom transfer radical polymerization. Brush thickness was sensitive to changes in pH and temperature as monitored with ellipsometry. At low pH, the brush is charged and swollen, while at high pH, the brush is uncharged and more collapsed. Clear thermoresponsive behavior is also observed with the brush more swollen at low temperatures compared to high temperatures at both high and low pH. Neutron reflectometry was used to determine the polymer volume fraction profiles (VFPs) at various pH values and temperatures. A region of lower polymer content, or a depletion region, near the substrate is present in all of the experimental polymer VFPs, and it is more pronounced at low pH (high charge) and less so at high pH (low charge). Polymer VFPs calculated through numerical self-consistent field theory suggest that enrichment of DEA monomers near the substrate results in the experimentally observed non-monotonic VFPs. Adsorption of DEA monomers to the substrate prior to initiation of polymerization could give rise to DEA segment-enriched region proximal to the substrate.
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Affiliation(s)
- Edwin C Johnson
- Priority Research Centre for Advanced Particle Processing and Transport, University of Newcastle, Callaghan, New South Wales 2308, Australia
| | - Joshua D Willott
- Membrane Surface Science (MSuS), Membrane Science and Technology cluster, Mesa+ Institute for Nanotechnology, University of Twente, Enschede 7500 AE, The Netherlands
| | - Isaac J Gresham
- School of Chemical Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Timothy J Murdoch
- Priority Research Centre for Advanced Particle Processing and Transport, University of Newcastle, Callaghan, New South Wales 2308, Australia
| | - Ben A Humphreys
- Priority Research Centre for Advanced Particle Processing and Transport, University of Newcastle, Callaghan, New South Wales 2308, Australia
| | - Stuart W Prescott
- School of Chemical Engineering, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Andrew Nelson
- ANSTO, Locked bag 2001, Kirrawee DC, Sydney, New South Wales 2232, Australia
| | - Wiebe M de Vos
- Membrane Surface Science (MSuS), Membrane Science and Technology cluster, Mesa+ Institute for Nanotechnology, University of Twente, Enschede 7500 AE, The Netherlands
| | - Grant B Webber
- Priority Research Centre for Advanced Particle Processing and Transport, University of Newcastle, Callaghan, New South Wales 2308, Australia
| | - Erica J Wanless
- Priority Research Centre for Advanced Particle Processing and Transport, University of Newcastle, Callaghan, New South Wales 2308, Australia
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149
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Qian Y, Deng S, Lu Z, She Y, Xie J, Cong Z, Zhang W, Liu R. Using In Vivo Assessment on Host Defense Peptide Mimicking Polymer-Modified Surfaces for Combating Implant Infections. ACS APPLIED BIO MATERIALS 2020; 4:3811-3829. [DOI: 10.1021/acsabm.0c01066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yuxin Qian
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Shuai Deng
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Ziyi Lu
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Yunrui She
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jiayang Xie
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zihao Cong
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Wenjing Zhang
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Runhui Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory of Specially Functional Polymeric Materials and Related Technology (ECUST) Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
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150
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Kim CS, Cho S, Lee JH, Cho WK, Son KS. Open-to-Air RAFT Polymerization on a Surface under Ambient Conditions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:11538-11545. [PMID: 32921056 DOI: 10.1021/acs.langmuir.0c01947] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Oxygen (O2)-mediated controlled radical polymerization was performed on surfaces under ambient conditions, enabling on-surface polymer brush growth under open-to-air conditions at room temperature in the absence of metal components. Polymerization of zwitterionic monomers using this O2-mediated surface-initiated reversible addition fragmentation chain-transfer (O2-SI-RAFT) method yielded hydrophilic surfaces that exhibited anti-biofouling effects. O2-SI-RAFT polymerization can be performed on large surfaces under open-to-air conditions. Various monomers including (meth)acrylates and acrylamides were employed for O2-SI-RAFT polymerization; the method is thus versatile in terms of the polymers used for coating and functionalization. A wide range of hydrophilic and hydrophobic monomers can be employed. In addition, the end-group functionality of the polymer grown by O2-SI-RAFT polymerization allowed chain extension to form block copolymer brushes on a surface.
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Affiliation(s)
- Chung Soo Kim
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Soojeong Cho
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Ji Hoon Lee
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Woo Kyung Cho
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Kyung-Sun Son
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
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