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Zhao X, Li D, Zhu J, Fan Y, Xu J, Huang X, Nie Z, Chen D. Stably Grafting Polymer Brushes on Both Active and Inert Surfaces Using Tadpole-Like Single-Chain Particles with an Interactive "Head". ACS Macro Lett 2024; 13:882-888. [PMID: 38953383 DOI: 10.1021/acsmacrolett.4c00341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
We report a "grafting to" method for stably grafting high-molecular-weight polymer brushes on both active and inert surfaces using tadpole-like single-chain particles (TSCPs) with an interactive "head" as grafting units. The TSCPs can be efficiently synthesized through intrachain cross-linking one block of a diblock copolymer; the "head" is the intrachain cross-linked single-chain particle, and the "tail" is a linear polymer chain that has a contour length up to micrometers. When grafted to a surface, the "head", integrating numerous interacting groups, can synergize multiple weak interactions with the surface, thereby enabling stable grafting of the "tail" on both active and traditionally challenging inert surfaces. Because the structural parameters and composition of the "heads" and "tails" can be separately adjusted over a wide range, the interactivity of the "heads" with the surface and properties of the brushes can be controlled orthogonally, accomplishing surface brushes that cannot be achieved by existing methods.
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Affiliation(s)
- Xiaoya Zhao
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
| | - Dahua Li
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
| | - Jie Zhu
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
| | - Yanbin Fan
- The Dow Chemical Company, 936 Zhangheng Road, Shanghai, 201203, People's Republic of China
| | - Jiayin Xu
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
| | - Xiayun Huang
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
| | - Zhihong Nie
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
| | - Daoyong Chen
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science, Fudan University, 2005 Songhu Road, Shanghai, 200438, People's Republic of China
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2
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Indla NR, Maruthi Y, Rawat R, Sandeep Kumar T, Ramesh Reddy N, Sharma M, Aminabhavi TM, Kakarla RR, Sainath AVS. Synthesis and biological properties of novel glucose-based fluoro segmented macromolecular architectures. Int J Biol Macromol 2024; 268:131724. [PMID: 38653427 DOI: 10.1016/j.ijbiomac.2024.131724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/12/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
The emergence of novel well-defined biological macromolecular architectures containing fluorine moieties displaying superior functionalities can satisfactorily address many biomedical challenges. In this research, ABA- and AB-type glucose-based biological macromolecules were synthesized using acryl-2,3,4,6-tetra-O-acetyl-D-glucopyranoside with pentafluorophenyl (FPM), pentafluorobenzyl (FBM), phenyl (PM) and benzyl (BM) methacrylate-based macro-RAFT agents following RAFT polymerization. The macro-RAFT agents and the corresponding copolymers were characterized by 19F, 1H, and 13C NMR and FTIR spectroscopic techniques to understand the chemical structure, molecular weight by size-exclusion chromatography, thermal analysis by TGA and DSC. Thermal stability (Td5%) of the FPM and FBM fluoro-based polymers was observed in the range of 219-267 °C, while the non-fluoro PM and BM polymers exhibited in the range of 216-264 °C. Among the macro-RAFT agents, PFPM (107 °C, ΔH: 0.613 J/g) and PPM (103 °C, ΔH: 0.455 J/g) showed higher Tm values, while among the block copolymers, PFBM-b-PG (123 °C, ΔH: 0.412 J/g) and PG-b-PFPM-b-PG (126 °C, ΔH: 0.525 J/g) exhibited higher Tm values. PFBMT and PPM macro-RAFT agents, PPM-b-PG and PG-b-PPM-b-PG copolymer spin-coated films showed the highest hydrophobicity (120°) among the synthesized polymers. The block copolymers exhibited self-assembled segregation by using relatively hydrophobic segments as the core and hydrophilic moieties as the corona. Synthesized biological macromolecules exhibit maximum antibacterial activity towards S. aureus than E. coli bacteria. Fluorophenyl (PFPM) and non-fluorobenzyl-based (PBMT) macro-RAFT agents exhibit low IC50 values, suggesting high cytotoxicity. All the triblock copolymers exhibit lesser cytotoxicity than the di-block polymers.
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Affiliation(s)
- Nagamalleswara Rao Indla
- Fluoro-Agrochemicals, Polymers and Functional Materials Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Yeggada Maruthi
- Fluoro-Agrochemicals, Polymers and Functional Materials Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
| | - Reetika Rawat
- Banasthali Vidyapith, Department of Pharm, Banasthali 304022, Rajasthan, India
| | - T Sandeep Kumar
- Fluoro-Agrochemicals, Polymers and Functional Materials Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
| | - N Ramesh Reddy
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Manu Sharma
- Banasthali Vidyapith, Department of Pharm, Banasthali 304022, Rajasthan, India
| | - Tejraj M Aminabhavi
- Center for Energy and Environment, School of Advanced Sciences, KLE Technological University, Hubballi 580 031, Karnataka, India; Korea University, Seoul, Republic of Korea.
| | - Raghava Reddy Kakarla
- School Chemical Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia.
| | - Annadanam V Sesha Sainath
- Fluoro-Agrochemicals, Polymers and Functional Materials Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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3
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Cheng CH, Zeng XZ, Chiu WY, Lin JC. A Facile Surface Modification Scheme for Medical-Grade Titanium and Polypropylene Using a Novel Mussel-Inspired Biomimetic Polymer with Cationic Quaternary Ammonium Functionalities for Antibacterial Application. Polymers (Basel) 2024; 16:503. [PMID: 38399881 PMCID: PMC10893476 DOI: 10.3390/polym16040503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/08/2024] [Accepted: 02/11/2024] [Indexed: 02/25/2024] Open
Abstract
Medical device-associated infection remains a critical problem in the healthcare setting. Different clinical- or device-related methods have been attempted to reduce the infection rate. Among these approaches, creating a surface with bactericidal cationic functionality has been proposed. To do so, a sophisticated multi-step chemical procedure would be needed. Instead, a simple immersion approach was utilized in this investigation to render the titanium and polypropylene surface with the quaternary ammonium functionality by using a mussel-inspired novel lab-synthesized biomimetic catechol-terminated polymer, PQA-C8. The chemical oxidants, CuSO4/H2O2, as well as dopamine, were added into the novel PQA-C8 polymer immersion solution for one-step surface modification. Additionally, a two-step immersion scheme, in which the polypropylene substrate was first immersed in the dopamine solution and then in the PQA-C8 solution, was also attempted. Surface analysis results indicated the surface characteristics of the modified substrates were affected by the immersion solution formulation as well as the procedure utilized. The antibacterial assay has shown the titanium substrates modified by the one-step dopamine + PQA-C8 mixtures with the oxidants added and the polypropylene modified by the two-step scheme exhibited bacterial reduction percentages greater than 90% against both Gram-positive S. aureus and Gram-negative E. coli and these antibacterial substrates were non-cytotoxic.
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Affiliation(s)
- Chi-Hui Cheng
- Department of Pediatrics, College of Medicine, Chang Gung University, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan;
| | - Xiang-Zhen Zeng
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan; (X.-Z.Z.); (W.-Y.C.)
| | - Wen-Yuan Chiu
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan; (X.-Z.Z.); (W.-Y.C.)
| | - Jui-Che Lin
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan; (X.-Z.Z.); (W.-Y.C.)
- Institute of Oral Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
- School of Dentistry, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
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Li ZY, Zhang X, Qian YL, Du FS, Li ZC. Synthesis and antibacterial properties of fluorinated biodegradable cationic polyesters. J Mater Chem B 2024; 12:1569-1578. [PMID: 38252543 DOI: 10.1039/d3tb02578k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Antimicrobial peptide-mimicking antibacterial polymers represent a practical strategy to conquer the ever-growing threat of antimicrobial resistance. Herein, we report the syntheses and antibacterial performance of degradable amphiphilic cationic polyesters containing pendent quaternary ammonium motifs and hydrophobic alkyl or fluoroalkyl groups. These polyesters were conveniently prepared from poly(3-methylene-1,5-dioxepan-2-one) via highly efficient one-pot successive thiol-Michael addition reactions. The antibacterial activity of these polyesters against S. aureus and E. coli and their hemolytic activity toward red blood cells were evaluated; some of them showed moderate antibacterial activity and selectivity against Gram-positive S. aureus. The membrane disruption mechanism of these cationic polyesters was briefly explored by monitoring the bacteria killing kinetics and SEM observations. Moreover, the effects of cationic/hydrophobic ratio and the incorporation of fluoroalkyl groups on the antibacterial activity and selectivity of the polyesters were demonstrated.
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Affiliation(s)
- Zhao-Yue Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry & Molecular Engineering, Peking University, Beijing 100871, China.
| | - Xiaoying Zhang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing, 100190, China
| | - Yi-Lin Qian
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry & Molecular Engineering, Peking University, Beijing 100871, China.
| | - Fu-Sheng Du
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry & Molecular Engineering, Peking University, Beijing 100871, China.
| | - Zi-Chen Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry & Molecular Engineering, Peking University, Beijing 100871, China.
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5
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Kumar A, Sharma J, Srivastava P, Nebhani L. Mechanically robust and highly bactericidal macroporous polymeric gels based on quaternized N, N-(dimethylamino)ethyl methacrylate possessing varying alkyl chain lengths. J Mater Chem B 2023; 11:2234-2248. [PMID: 36794579 DOI: 10.1039/d2tb02178a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
In this paper, macroporous antimicrobial polymeric gels (MAPGs) functionalized with active quaternary ammonium cations attached to varying hydrocarbon chain lengths have been fabricated. Apart from the change in the alkyl chain length attached to the quaternary ammonium cation, the amount of crosslinker was also varied during the fabrication of the macroporous gels. The prepared gels were characterized using Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, field emission scanning electron microscopy (FE-SEM) and swelling studies. In addition, the mechanical properties of the fabricated macroporous gels were studied using compression and tensile testing. The antimicrobial activity of the gels has been determined for Gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa) as well as Gram-positive bacteria (Bacillus subtilis, Staphylococcus aureus). Antimicrobial activity, as well as the mechanical properties of the macroporous gels, was found to be influenced by the alkyl chain length attached to the quaternary ammonium cations as well as by the amount of crosslinker used for the fabrication of the gel. In addition, on increasing the alkyl chain length from C4 (butyl) to C8 (octyl), the effectiveness of the polymeric gels increased. It was observed that the gels derived using a tertiary amine (NMe2) containing monomer showed relatively low antimicrobial activity as compared to the gels obtained using quaternized monomers (C4 (butyl), C6 (hexyl), and C8 (octyl)). The gels based on the quaternized C8 monomer displayed the highest antimicrobial activity and mechanical stability as compared to the gels based on the C4 and C6 monomers.
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Affiliation(s)
- Amit Kumar
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India.
| | - Jyoti Sharma
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India.
| | - Preeti Srivastava
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India.
| | - Leena Nebhani
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi-110016, India.
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Li L, Xin Y, Wu F, Lyu X, Yao Q, Yin X, Zhang Q, Shan W, Chen Y, Han Q. A Polysiloxane Delivery Vehicle of Cyclic N-Halamine for Biocidal Coating of Cellulose in Supercritical CO 2. Polymers (Basel) 2022; 14:polym14235080. [PMID: 36501474 PMCID: PMC9739799 DOI: 10.3390/polym14235080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022] Open
Abstract
Cyclic N-halamines are highly antimicrobial, very stable, and not susceptible to bacterial resistance. A polysiloxane delivery vehicle was synthesized to deliver cyclic imide N-halamine onto cellulose via a benign and universal procedure that does not require a harmful solvent or chemical bonding. In brief, Knoevenagel condensation between barbituric acid and 4-hydroxybenzaldehyde furnished 5-(4-hydroxybenzylidene)pyrimidine-2,4,6-trione, whose phenolic O-H was subsequently reacted with the Si-H of poly(methylhydrosiloxane) (PMHS) via silane alcoholysis. The product of silane alcoholysis was interpenetrated into cellulose in supercritical CO2 (scCO2) at 50 °C, to form a continuous modification layer. The thickness of the modification layer positively correlated with interpenetration pressure in the experimental range of 10 to 28 MPa and reached a maximum value of 76.5 nm, which demonstrates the ability for tunable delivery, to control the loading of the imide N-H bond originating from barbituric acid unit. The imide N-H bonds on cellulose with the thickest modifier were then chlorinated into N-Cl counterparts using tert-butyl hypochlorite, to exert a powerful biocidability, providing ~7 log reductions of both S. aureus and E. coli in 20 min. The stability and rechargeability of the biocidability were both very promising, suggesting that the polysiloxane modifier has a satisfactory chemical structure and interlocks firmly with cellulose via scCO2 interpenetration.
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Affiliation(s)
- Leixuan Li
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Yan Xin
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Fengze Wu
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xiangrong Lyu
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Qiyuan Yao
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xiaoting Yin
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Qiang Zhang
- Analytical and Testing Center, School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Wenjuan Shan
- College of Chemistry and Chemical Engineering, Liaoning Normal University, 850 Huanghe Road, Dalian 116029, China
| | - Yong Chen
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
- Correspondence: (Y.C.); (Q.H.)
| | - Qiuxia Han
- Department of Biological Engineering, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
- Correspondence: (Y.C.); (Q.H.)
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7
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Bindhu MR, Willington TD, Hatshan MR, Chen SM, Chen TW. Environmental photochemistry with Sn/F simultaneously doped TiO 2 nanoparticles: UV and visible light induced degradation of thiazine dye. ENVIRONMENTAL RESEARCH 2022; 207:112108. [PMID: 34571028 DOI: 10.1016/j.envres.2021.112108] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 09/08/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
Environmental route such as degradation of toxic dyes can be improved through photochemical activity such as light driven photocatalytic degradation. Herein, fluorine and tin simultaneously doped TiO2 nanoparticles were synthesized and characterized. The formation of anatase phase in synthesized samples and the reduction in the crystallite size of doped TiO2 was confirmed from XRD results. The existence of O-Ti-O stretching vibration in pure and co-doped TiO2 confirmed from FTIR results. Optical studies reveal that the band gap of co-doped TiO2 is increased and hence it was concluded that the particle size of co-doped TiO2 is reduced compared with as-synthesized TiO2. The morphologies of TiO2 changed significantly with doping of fluorine and tin. It reveals majority of the particles are hexagons, pentagons and ellipse shaped and some of them are spheres with a mean particle size of 31.17 nm. PL studies showed the reduction in intensity for Sn-F/TiO2 accredited to the lesser recombination rate of electron-hole pair under UV light irradiation. Thus tin and fluorine doped TiO2 could be considered as a good candidate for photocatalytic activity. The photocatalytic activity of TiO2 and Sn-F/TiO2 nanoparticles was analyzed separately through the degradation of methylene blue (MB) under visible and UV light irradiation. The use of Sn and F ions in the synthesis of TiO2 are revealed not only create small sized nanoparticles but these water soluble nanoparticles have very good antibacterial and antifungal action by inhibiting the growth of bacteria and fungus.
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Affiliation(s)
- M R Bindhu
- Department of Physics, Sree Devi Kumari Women's College, Kuzhithurai, 629163, Tamilnadu, India.
| | - T David Willington
- Department of Physics and Research Centre, Nesamony Memorial Christian College, Marthandam, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamil Nadu, India
| | - Mohammad Rafe Hatshan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East 8 Road, Taipei, 106, Taiwan, ROC
| | - Tse-Wei Chen
- Department of Materials, Imperial College London, London, SW7 2AZ, United Kingdom
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Huang B, Chen M, Tian J, Zhang Y, Dai Z, Li J, Zhang W. Oxygen-Carrying and Antibacterial Fluorinated Nano-Hydroxyapatite Incorporated Hydrogels for Enhanced Bone Regeneration. Adv Healthc Mater 2022; 11:e2102540. [PMID: 35166460 DOI: 10.1002/adhm.202102540] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/27/2022] [Indexed: 12/27/2022]
Abstract
Insufficient oxygen availability in tissue engineering is one of the major factors for the failure of clinical transplantation. One potential strategy to conquer this limitation is the fabrication of spontaneous and continuous oxygen supplying scaffolds for in situ tissue regeneration. In this work, a versatile fluorine-incorporating hydrogel is designed which can not only timely and continuously supply oxygen for mesenchymal stem cells (MSCs) to overcome deficient oxygen before vascularization in scaffolds, but can present a higher antibacterial capability to avoid bacterial infections. The HAp@PDA-F nanoparticles are first prepared and then incorporated with the quaternized and methacrylated chitosan forming CS/HAp@PDA-F by photo-crosslinking. In vitro results indicate that CS/HAp@PDA-F hydrogel has outstanding mechanical performance, moreover, it also has the oxygen-carrying ability to prolong survival ability, enhance proliferation activity, and preserve osteogenic differentiation potency and promote osteogenic-related genes expression of rat bone mesenchymal stem cells (rBMSCs) under hypoxic environment. Furthermore, the CS/HAp@PDA-F hydrogel can inhibit the growth of Staphylococcus aureus and Escherichia coli, providing a good antibacterial activity. Additionally, in vivo experiments demonstrate higher bone volume and bone mineral density, and more new bone tissue generation in CS/HAp@PDA-F group than in CS/HAp@PDA group. These results indicate that the rational design of fluorinated hydrogel possesses a good clinical application prospect for bone regeneration.
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Affiliation(s)
- Baoxuan Huang
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 P. R. China
| | - Mingjiao Chen
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Department of Ophthalmology Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Zhizaoju Road No. 639 Shanghai 200011 P. R. China
| | - Jia Tian
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 P. R. China
| | - Yuanhao Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 P. R. China
| | - Zhaobo Dai
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 P. R. China
| | - Jin Li
- Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology Department of Ophthalmology Ninth People's Hospital Shanghai Jiao Tong University School of Medicine Zhizaoju Road No. 639 Shanghai 200011 P. R. China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Meilong Road No. 130 Shanghai 200237 P. R. China
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You K, Gao B, Wang M, Wang X, Okoro KC, Rakhimbekzoda A, Feng Y. Versatile polymer-based strategies for antibacterial drug delivery systems and antibacterial coatings. J Mater Chem B 2022; 10:1005-1018. [DOI: 10.1039/d1tb02417e] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Human health damage and economic losses due to bacterial infections are very serious worldwide. Excessive use of antibiotics has caused an increase in bacterial resistance. Fortunately, various non-antibiotic antibacterial materials...
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10
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Vinx N, Damman P, Leclère P, Bresson B, Fretigny C, Poleunis C, Delcorte A, Cossement D, Snyders R, Thiry D. Investigating the relationship between the mechanical properties of plasma polymer-like thin films and their glass transition temperature. SOFT MATTER 2021; 17:10032-10041. [PMID: 34705005 DOI: 10.1039/d1sm01134k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This work aims at understanding the influence of the substrate temperature (Ts) on the viscoelastic properties of propanethiol plasma polymer films (PPFs). By means of state-of-the-art AFM characterization-based techniques including peak force quantitative nanomechanical mapping (PFQNM), nano dynamic mechanical analysis (nDMA) and "scratch" experiments, it has been demonstrated that the mechanical behaviour of PPFs is dramatically affected by the thermal conditions of the substrate. Indeed, the material behaves from a high viscous liquid (i.e. viscosity ∼ 106 Pa s) to a viscoelastic solid (loss modulus ∼ 1.17 GPa, storage modulus ∼ 1.61 GPa) and finally to an elastic solid (loss modulus ∼ 1.95 GPa, storage modulus ∼ 8.51 GPa) when increasing Ts from 10 to 45 °C. This behaviour is ascribed to an increase in the surface glass transition temperature of the polymeric network. The latter has been correlated with the chemical composition through the presence of unbound molecules acting as plasticizers and the cross-linking density of the layers. In a second step, this knowledge is exploited for the fabrication of a nanopattern by generating surface instabilities in the propanethiol PPF/Al bilayer system.
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Affiliation(s)
- Nathan Vinx
- Chimie des Interactions Plasma-Surface (ChIPS), CIRMAP, University of Mons, 20 Place du Parc, B-7000 Mons, Belgium.
| | - Pascal Damman
- Interface et Fluides Complexes (Influx), CIRMAP, University of Mons, 20 Place du Parc, B-7000 Mons, Belgium
| | - Philippe Leclère
- Laboratory for Chemistry of Novel Materials (CMN), CIRMAP, University of Mons, 20 Place du Parc, B-7000 Mons, Belgium
| | - Bruno Bresson
- Sciences et Ingénierie de la Matière Molle (SIMM), ESPCI, 10 rue Vauquelin, F-75231 Paris Cedex 05, France
| | - Christian Fretigny
- Sciences et Ingénierie de la Matière Molle (SIMM), ESPCI, 10 rue Vauquelin, F-75231 Paris Cedex 05, France
| | - Claude Poleunis
- Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain (UCL), Place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
| | - Arnaud Delcorte
- Institute of Condensed Matter and Nanosciences (IMCN), Université catholique de Louvain (UCL), Place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
| | - Damien Cossement
- Materia Nova Research Center, Parc Initialis, B-7000 Mons, Belgium
| | - Rony Snyders
- Chimie des Interactions Plasma-Surface (ChIPS), CIRMAP, University of Mons, 20 Place du Parc, B-7000 Mons, Belgium.
- Materia Nova Research Center, Parc Initialis, B-7000 Mons, Belgium
| | - Damien Thiry
- Chimie des Interactions Plasma-Surface (ChIPS), CIRMAP, University of Mons, 20 Place du Parc, B-7000 Mons, Belgium.
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Ancy K, Vijilvani C, Bindhu MR, Bai SJS, Almaary KS, Dawoud TM, Mubarak A, Alfadul MS. Visible light assisted photocatalytic degradation of commercial dyes and waste water by Sn-F co-doped titanium dioxide nanoparticles with potential antimicrobial application. CHEMOSPHERE 2021; 277:130247. [PMID: 33774237 DOI: 10.1016/j.chemosphere.2021.130247] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/03/2021] [Accepted: 03/06/2021] [Indexed: 06/12/2023]
Abstract
The disintegration of natural water sources signals out the scarcity of adam's ale and will be hurdle for the human physical state. So it is necessary to decrease waste loads and hence pressure on the ecology for the sustainability of fishery and dye industry. Herein, TiO2 nanoparticles doped with Sn and F are synthesized and the influence of simultaneous doping on the optical, surface morphological, structural, photocatalytic and antibacterial activities are investigated. Doping of TiO2 with Sn and F suppress the growth of both anatase and rutile phase because of the dissimilar boundaries. All the prepared doped and undoped samples are found to possess tetragonal structure. The influence of F and Sn in TiO2 lattice is recognized with the XRD and FT-IR spectra of the prepared particles The size of the obtained nanoparticles decreases as increasing concentration of F and Sn. TiO2 is showing the presence of spherical and ellipsoidal nanoparticles whereas doped samples showing nanobulk, pentagons and rods. The absorption edge of the doped samples are blue shifted with increasing concentration of dopants indicates the control of optical absorption property of TiO2. The visible light assisted photocatalytic degradation of fish processing waste water by doped and undoped samples are found to be established as 0.0076/min and 0.0071/min respectively. Visible light assisted degradation of commercially available dyes and fish processing waste water is assessed. Methyl blue showed enhanced photocatalytic activity under visible light irradiation compared to Methyl orange. It is observed that all the prepared particles show good antimicrobial activity against Staphylococcus aureus.
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Affiliation(s)
- K Ancy
- Research Scholar (Reg.no: 19113112132016), Department of Physics and Research Centre, Nesamony Memorial Christian College, Marthandam, Affiliated to Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, 627012, Tamilnadu, India
| | - C Vijilvani
- Department of Physics, Government Polytechnic College, Thoothukudi, 628003, Tamilnadu, India
| | - M R Bindhu
- Department of Physics, Sree Devi Kumari Women's College, Kuzhithurai, 629163, Tamilnadu, India.
| | - S Jeslin Sunitha Bai
- Department of Physics, Nesamony Memorial Christian College, Marthandam, Tamilnadu, India
| | - Khalid S Almaary
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia.
| | - Turki M Dawoud
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Ayman Mubarak
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Mohammed Sulaiman Alfadul
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
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12
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Lin PA, Cheng CH, Hsieh KT, Lin JC. Effect of alkyl chain length and fluorine content on the surface characteristics and antibacterial activity of surfaces grafted with brushes containing quaternized ammonium and fluoro-containing monomers. Colloids Surf B Biointerfaces 2021; 202:111674. [PMID: 33690062 DOI: 10.1016/j.colsurfb.2021.111674] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 02/15/2021] [Accepted: 03/02/2021] [Indexed: 11/30/2022]
Abstract
Although considerable efforts have been made to vary the alkyl chain length in the quaternary ammonium compounds (QACs) for optimizing the antibacterial activity, only few researchers have systematically investigated the combinatory effects of alkyl chain length and another acryl monomers with the different chemical configuration on the antibacterial activity of the modified substrate. In this study, by surface grafting of various copolymeric brushes, different modified cotton substrates were prepared by surface-initiated reversible addition-fragmentation chain transfer (RAFT) polymerization reaction for exploring the effects of alkyl chain length of QACs and the fluorine content on antibacterial and anti-microbial adhesion characteristics. The quaternized monomers used were prepared by quaternization of 2-(dimethylamino) ethyl methacrylate (DMAEMA) with 1-bromooctane (DMAEMA + 8), and 1-bromopropane (DMAEMA + 3). The fluoro-containing monomer was 2,2,2-Trifluoroethyl methacrylate (TFEMA). Ethyl methacrylate (EMA) was also used for comparison. Results have shown that the optimal antibacterial and anti-microbial adhesion characteristics were noted on the substrates grafted with DMAEMA + 8 and TFEMA. This can be attributed to the enhanced degree of surface quaternization due to the hydrophobic interactions between the grafted TFEMA and DMAEMA + 8 chains, leading to an increase in antibacterial efficacy of modified cotton substrates.
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Affiliation(s)
- Po-An Lin
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Chi-Hui Cheng
- Department of Pediatrics, College of Medicine, Chang Gung University, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Kun-Ting Hsieh
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Jui-Che Lin
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan.
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13
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Yang X, Cui M, Zhou J, Zhang L, Zhou H, Luo Z, Zhou L, Hu H. Surface Fluorination Modification and Anti-Biofouling Study of a pHEMA Hydrogel. ACS APPLIED BIO MATERIALS 2021; 4:523-532. [PMID: 35014303 DOI: 10.1021/acsabm.0c01071] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A poly(2-hydroxyethyl methacrylate) (pHEMA) hydrogel film was prepared by bulk polymerization. Then, it was surface modified by perfluorooctanoyl chloride to improve the anti-biofouling properties. Attenuated total reflectance-Fourier transform infrared (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDXS), and atomic force microscopy (AFM) analyses demonstrated that the uniform dense fluorinated layer had been successfully grafted onto pHEMA. The water contact angle (WCA) of the modified pHEMA film increased to 135°, while the surface energy decreased to 13.32 mN/m. The protein and bacterial adhesion properties of the modified pHEMA were decreased significantly. The in vitro cytotoxicity showed that the modified pHEMA was noncytotoxic. Thus, the fluorinated modification on the material surface was a convenient and effective method to establish a hydrophobic and anti-biofouling surface.
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Affiliation(s)
- Xinlin Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Mengmeng Cui
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jinsheng Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Lu Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Haohao Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Zhongkuan Luo
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Li Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Huiyuan Hu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
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14
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Self-Assembly CNTs@PANi Coffee Rings on Poly(styrene-ethylene-butylene-styrene) Triblock Copolymer for Largely Stretchable Electronics. Polymers (Basel) 2020; 12:polym12122847. [PMID: 33260397 PMCID: PMC7760645 DOI: 10.3390/polym12122847] [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: 10/30/2020] [Revised: 11/23/2020] [Accepted: 11/26/2020] [Indexed: 12/12/2022] Open
Abstract
In this paper, CNTs@PANi nanocomposites were prepared by in-situ oxidation polymerization of aniline, and their structure, morphology and conductivity were characterized. A mixed solvent of toluene and tetrahydrofuran was used to prepare dispersions of CNTs@PANi and poly(styrene-ethylene-butylene-styrene) (SEBS) triblock copolymer, and bilayer composite film was prepared. According to the solvent phase separation and uneven evaporation flux, CNTs@PANi self-assembled into the interconnected coffee ring structure on the SEBS matrix. The prepared bilayer composite film had excellent stretchability, and the conductivity of the functional layer was close to that of CNTs@PANi, which could light up an LED lamp under 100% strain and restore the topological structure. Electrochemical tests showed that the bilayer film had obvious heterogeneity. The impedance characteristics of the CNTs@PANi functional layer and the SEBS matrix were analyzed, and its heterogeneous corrosion resistance mechanism further discussed.
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15
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Bindhu M, Ancy K, Umadevi M, Esmail GA, Al-Dhabi NA, Arasu MV. Synthesis and characterization of zinc oxide nanostructures and its assessment on enhanced bacterial inhibition and photocatalytic degradation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2020; 210:111965. [DOI: 10.1016/j.jphotobiol.2020.111965] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 06/12/2020] [Accepted: 07/15/2020] [Indexed: 10/23/2022]
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16
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Movsesian N, Hirth S, Speros J, Gupta M. Robust Vapor-Deposited Antifouling Fluoropolymer Coatings for Stainless Steel Polymerization Reactor Components. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02646] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Nareh Movsesian
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, California 90089, United States
| | - Sabine Hirth
- Department of Material Physics, Analytics & Formulation, BASF SE, Carl-Bosch-Strasse 38, 67056 Ludwigshafen am Rhein, Germany
| | - Joshua Speros
- California Research Alliance (CARA), BASF Corporation, Berkeley, California 94720, United States
| | - Malancha Gupta
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 925 Bloom Walk, Los Angeles, California 90089, United States
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17
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Brittin J, Fry MR, Punia A, Johnson KA, Sengupta A. Antibacterial and hemolytic properties of acrylate-based random ternary copolymers comprised of same center cationic, ethyl and poly(oligoethylene glycol) side chains. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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18
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Chen Y, Feng C, Chen Q, Yu H, Wang Y, Han Q. Novel composite unit with one pyridinium and three N-halamine structures for enhanced synergism and superior biocidability on magnetic nanoparticles. Colloids Surf B Biointerfaces 2020; 190:110890. [PMID: 32113165 DOI: 10.1016/j.colsurfb.2020.110890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/06/2020] [Accepted: 02/20/2020] [Indexed: 01/01/2023]
Abstract
A novel composite unit of enhanced synergism that rises from the use of a cationic pyridinium structure to attract anionic bacteria to three N-halamine structures was designed for superior biocidability on recyclable magnetic nanoparticles. Briefly, 5-(4-hydroxybenzylidene)hydantoin (HBH), containing one imide and amide NH bonds, was synthesized by Knoevenagel condensation ofp-hydroxybenzaldehyde with hydantoin. 3-Triethoxysilylpropyl succinic anhydride was ammonolyzed with 4-aminopyridine to introduce a pyridine structure and form an amide NH and a carboxylic acid group that was esterified with HBH to introduce its two NH bonds. The triethoxysilyl groups of the esterification product were hydrolyzed into silanols to condense with the counterparts of different hydrolysates and on silica modified Fe3O4nanoparticles to provide a layer of polymeric modifier. After quaternization of the pyridine and chlorination of NH bonds from each esterification product, the resultant layer is composed of units each of which contains one pyridinium and threeN-halamine sites and exerted higher biocidability against Escherichia coli and Staphylococcus aureus than comparable systems including synergistic ones with one cationic center and one N-halamine, demonstrating an enhanced synergism. The biocidal layer had promising stability under quenching-chlorinating cycles and long-term storage. The study affords a strategy for syntheses of more powerful biocidal surfaces.
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Affiliation(s)
- Yong Chen
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
| | - Chunyan Feng
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Qi Chen
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Hao Yu
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Yuyu Wang
- Department of Applied Chemistry, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Qiuxia Han
- Department of Biological Engineering, College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
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19
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Modjinou T, Versace DL, Abbad Andaloussi S, Langlois V, Renard E. Co-Networks Poly(hydroxyalkanoates)-Terpenes to Enhance Antibacterial Properties. Bioengineering (Basel) 2020; 7:E13. [PMID: 31972967 PMCID: PMC7148494 DOI: 10.3390/bioengineering7010013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 11/17/2022] Open
Abstract
Biocompatible and biodegradable bacterial polyesters, poly(hydroxyalkanoates) (PHAs), were combined with linalool, a well-known monoterpene, extracted from spice plants to design novel antibacterial materials. Their chemical association by a photo-induced thiol-ene reaction provided materials having both high mechanical resistance and flexibility. The influence of the nature of the crosslinking agent and the weight ratio of linalool on the thermo-mechanical performances were carefully evaluated. The elongation at break increases from 7% for the native PHA to 40% for PHA-linalool co-networks using a tetrafunctional cross-linking agent. The materials highlighted tremendous anti-adherence properties against Escherichia coli and Staphylococcus aureus by increasing linalool ratios. A significant decrease in antibacterial adhesion of 63% and 82% was observed for E. coli and S. aureus, respectively.
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Affiliation(s)
- Tina Modjinou
- Institut de Chimie et des Matériaux de Paris Est, Univ Paris Est Creteil, F-94320 Thiais, France; (T.M.); (D.L.V.); (E.R.)
| | - Davy Louis Versace
- Institut de Chimie et des Matériaux de Paris Est, Univ Paris Est Creteil, F-94320 Thiais, France; (T.M.); (D.L.V.); (E.R.)
| | - Samir Abbad Andaloussi
- Institut de Chimie et des Matériaux de Paris Est, Univ Paris Est Creteil, F-94010 Créteil cedex, France;
| | - Valérie Langlois
- Institut de Chimie et des Matériaux de Paris Est, Univ Paris Est Creteil, F-94320 Thiais, France; (T.M.); (D.L.V.); (E.R.)
| | - Estelle Renard
- Institut de Chimie et des Matériaux de Paris Est, Univ Paris Est Creteil, F-94320 Thiais, France; (T.M.); (D.L.V.); (E.R.)
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20
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Chen Y, Feng C, Zhang Q, Luo M, Xu J, Han Q. Engineering of antibacterial/recyclable difunctional nanoparticles via synergism of quaternary ammonia salt site and N-halamine sites on magnetic surface. Colloids Surf B Biointerfaces 2019; 187:110642. [PMID: 31744761 DOI: 10.1016/j.colsurfb.2019.110642] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 11/10/2019] [Accepted: 11/11/2019] [Indexed: 01/01/2023]
Abstract
A biocidal composite unit with improved synergism, using one cationic quaternary ammonia salt (QAS) site to attract electronegative bacteria to three highly biocidal N-halamine sites, was designed for the first time and attached onto surface of magnetic silica coated Fe3O4 nanoparticles (silica@Fe3O4NPs) for superior biocidability, large killing area, and easy recyclability. Briefly, a compound containing one imide and two amide NH bonds, 2-(2,5-dioxoimidazolidin-4-yl)-N-(4-hydroxyphenyl)acetamide (DHPA), was prepared by amidation of hydantoin acetic acid with p-aminophenol. A biocidal precursor of one QAS site and three N-halamine sites was then constructed by alcoholysis of 3-triethoxysilylpropyl succinic anhydride with 2-(dimethylamino)ethan-1-ol to introduce a tertiary amine and subsequent esterification with DHPA to introduce three NH bonds. The triethoxysilyl groups in the precursor were hydrolyzed to silanol groups to condense with their counterparts on silica@Fe3O4 NPs. The surface of resultant NPs carried units each contains one QAS site and three N-halamine sites after quaternization and chlorination. The biocidal surface showed superior biocidability against Escherichia coli and Staphylococcus aureus than reported systems due to the improved synergism between multiple antibacterial groups of different types and was stable towards quenching-chlorinating process and storage. The successful design opens insight in the syntheses of more powerful biocides.
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Affiliation(s)
- Yong Chen
- Department of Applied Chemistry, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China.
| | - Chunyan Feng
- Department of Applied Chemistry, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Qiang Zhang
- Analytical and Testing Center, School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Meimei Luo
- Department of Applied Chemistry, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Jingwen Xu
- Department of Applied Chemistry, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
| | - Qiuxia Han
- Department of Biological Engineering, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, PR China
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21
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Chen Y, Wang Y, Zhang Q, Yang C, Han Q. Preparation of silicone containing 2,2,6,6-tetramethyl-4-piperidinol-based N
-chloramine for antibacterial polyethylene via interpenetration in supercritical carbon dioxide. J Appl Polym Sci 2019. [DOI: 10.1002/app.47614] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yong Chen
- Department of Applied Chemistry, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Yuyu Wang
- Department of Applied Chemistry, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Qiang Zhang
- Analytical and Testing Center, School of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Cuiying Yang
- Analytical and Testing Center, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Qiuxia Han
- Department of Biological Engineering, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
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22
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Zhou Y, Zhang Q, Wu J, Xi C, Meyerhoff ME. Synthesis and Characterization of a Fluorinated S-Nitrosothiol as the Nitric Oxide Donor for Fluoropolymer-Based Biomedical Device Applications. J Mater Chem B 2018; 6:6142-6152. [PMID: 31105961 PMCID: PMC6516761 DOI: 10.1039/c8tb01814f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Fluorinated polymers are widely used as biomaterials in various biomedical implant and device applications. However, thrombogenicity, surface-induced inflammation, and risk of microbial infection remain key issues that can limit their use. In this work, we describe the first nitric oxide (NO) releasing fluorinated polymer, in which a new fluorinated NO donor, S-nitroso-N-pentafluoropropionylpenicillamine (C2F5-SNAP), is incorporated within the polyvinylidene fluoride (PVDF) tubing. The synthesis, decomposition kinetics, and NO-release characteristics of the C2F5-SNAP species are described in detail. Then, using a simple solvent swelling method, we demonstrate that C2F5-SNAP can readily be doped into PVDF tubing. The resulting tubing can release NO for 11 days under physiological conditions, with an NO flux > 0.5 × 10-10 mol/cm2·min over the first 7 days. Due to fluorous-fluorous interactions, the leaching of the fluorinated NO donor and its decomposed products is shown to be very low (less than 5 nmol/mg, total). Further, the new NO-releasing PVDF tubing exhibits significant antimicrobial activity (compared to undoped PVDF tubing) against both gram positive and negative S. aureus and P. aeruginosa bacterial strains over a 7 d test period. This new NO-releasing fluorinated polymer is likely to have the potential to improve the biocompatibility and antimicrobial activity of various biomedical devices.
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Affiliation(s)
- Yang Zhou
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Qi Zhang
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Jianfeng Wu
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI 48109, USA
| | - Chuanwu Xi
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI 48109, USA
| | - Mark E Meyerhoff
- Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.
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23
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McBrearty J, Barker D, Damavandi M, Wilson-Nieuwenhuis J, Pilkington LI, Dempsey-Hibbert N, Slate AJ, Whitehead KA. Antimicrobial synergy of cationic grafted poly( para-phenylene ethynylene) and poly( para-phenylene vinylene) compounds with UV or metal ions against Enterococcus faecium. RSC Adv 2018; 8:23433-23441. [PMID: 35540130 PMCID: PMC9081575 DOI: 10.1039/c8ra02673d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 06/20/2018] [Indexed: 01/25/2023] Open
Abstract
The rise in multidrug resistant bacteria is an area of growing concern and it is essential to identify new biocidal agents. Cationic grafted compounds were investigated for their antimicrobial properties using minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) tests. Synergy testing was carried out using the compounds in the presence of ultraviolet (UV). Fractional inhibitory concentration (FIC) and fractional bactericidal concentration (FBC) tests were carried out using the cationic molecules in conjunction with metal ion solutions of gold, silver, palladium, platinum, rhodium, titanium, tin, vanadium and molybdenum. Individually, the cationic compounds containing quaternary amines, polyphenylene vinylene (PPV) with long polyacrylate grafts (PPV-g-PMETAC (HMw)), polyphenylene ethylene (PPE) with long polyacrylate grafts (PPE-g-PMETAC (HMw)), polyphenylene vinylene (PPV) with short polyacrylate grafts (PPV-g-PMETAC (LMw)) and polyphenylene ethylene (PPE) with short polyacrylate grafts (PPE-g-PMETAC (LMw)) were effective against Enterococcus faecium. The most successful compound under UV was PPV-g-PMETAC (HMw). Following the FICs, palladium and rhodium ion solutions caused a synergistic reaction with all four tested compounds. The presence of conjugated bonds in the cationic molecules increased its antimicrobial activity. These results suggest that the chemical backbone of the compounds, alongside the chain lengths and chain attachment affect the antimicrobial efficacy of a compound. These factors should be taken into consideration when formulating new biocidal combinations.
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Affiliation(s)
- Jordan McBrearty
- Microbiology at Interfaces Group, Faculty of Science and Engineering, Manchester Metropolitan University Manchester M1 5GD UK +44(0) 161 247 1157
| | - David Barker
- School of Chemical Sciences, University of Auckland Auckland 1010 New Zealand
| | - Mona Damavandi
- School of Chemical Sciences, University of Auckland Auckland 1010 New Zealand
| | - Joels Wilson-Nieuwenhuis
- Microbiology at Interfaces Group, Faculty of Science and Engineering, Manchester Metropolitan University Manchester M1 5GD UK +44(0) 161 247 1157
| | - Lisa I Pilkington
- School of Chemical Sciences, University of Auckland Auckland 1010 New Zealand
| | - Nina Dempsey-Hibbert
- Microbiology at Interfaces Group, Faculty of Science and Engineering, Manchester Metropolitan University Manchester M1 5GD UK +44(0) 161 247 1157
| | - Anthony J Slate
- Microbiology at Interfaces Group, Faculty of Science and Engineering, Manchester Metropolitan University Manchester M1 5GD UK +44(0) 161 247 1157
| | - Kathryn A Whitehead
- Microbiology at Interfaces Group, Faculty of Science and Engineering, Manchester Metropolitan University Manchester M1 5GD UK +44(0) 161 247 1157
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24
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Chen Y, He Q, Ren G, Feng C, Li N, Yu H, Han Q. Preparation of biocidal 4-ethyl-4-(hydroxymethyl)oxazolidin-2-one-based N
-halamine polysiloxane for impregnation of polypropylene in supercritical CO2. J Appl Polym Sci 2018. [DOI: 10.1002/app.46624] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yong Chen
- Department of Applied Chemistry; College of Chemical and Environmental Engineering, Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Qingkun He
- School of Materials Science and Engineering; Analytical and Testing Center, Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Guoyuan Ren
- Department of Applied Chemistry; College of Chemical and Environmental Engineering, Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Chunyan Feng
- Department of Applied Chemistry; College of Chemical and Environmental Engineering, Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | | | - Hao Yu
- Department of Applied Chemistry; College of Chemical and Environmental Engineering, Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Qiuxia Han
- Department of Biological Engineering; College of Chemical and Environmental Engineering, Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
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25
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Murugan P, Ramar P, Mandal AB, Samanta D. Polymer brush on surface with tunable hydrophilicity using SAM formation of zwitterionic 4-vinylpyridine-based polymer. NEW J CHEM 2018. [DOI: 10.1039/c7nj02971c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A zwitterionic vinylpyridine-based polymeric SAM was assembled on different surfaces to obtain tunable hydrophilicity.
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Affiliation(s)
- P. Murugan
- Polymer Science & Technology Department, CSIR-Central Leather Research Institute (CSIR-CLRI)
- Chennai-600020
- India
| | - P. Ramar
- Polymer Science & Technology Department, CSIR-Central Leather Research Institute (CSIR-CLRI)
- Chennai-600020
- India
- Academy of Scientific and Innovative Research (AcSIR)
- India
| | - Asit Baran Mandal
- Academy of Scientific and Innovative Research (AcSIR)
- India
- CSIR-CGCRI
- Kolkata
- India
| | - Debasis Samanta
- Polymer Science & Technology Department, CSIR-Central Leather Research Institute (CSIR-CLRI)
- Chennai-600020
- India
- Academy of Scientific and Innovative Research (AcSIR)
- India
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27
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Riga EK, Vöhringer M, Widyaya VT, Lienkamp K. Polymer-Based Surfaces Designed to Reduce Biofilm Formation: From Antimicrobial Polymers to Strategies for Long-Term Applications. Macromol Rapid Commun 2017; 38:10.1002/marc.201700216. [PMID: 28846821 PMCID: PMC7611510 DOI: 10.1002/marc.201700216] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 06/28/2017] [Indexed: 12/22/2022]
Abstract
Contact-active antimicrobial polymer surfaces bear cationic charges and kill or deactivate bacteria by interaction with the negatively charged parts of their cell envelope (lipopolysaccharides, peptidoglycan, and membrane lipids). The exact mechanism of this interaction is still under debate. While cationic antimicrobial polymer surfaces can be very useful for short-term applications, they lose their activity once they are contaminated by a sufficiently thick layer of adhering biomolecules or bacterial cell debris. This layer shields incoming bacteria from the antimicrobially active cationic surface moieties. Besides discussing antimicrobial surfaces, this feature article focuses on recent strategies that were developed to overcome the contamination problem. This includes bifunctional materials with simultaneously presented antimicrobial and protein-repellent moieties; polymer surfaces that can be switched from an antimicrobial, cell-attractive to a cell-repellent state; polymer surfaces that can be regenerated by enzyme action; degradable antimicrobial polymers; and antimicrobial polymer surfaces with removable top layers.
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Affiliation(s)
- E. K. Riga
- Bioactive Polymer Synthesis and Surface Engineering Group, Department of Microsystems Engineering (IMTEK) and Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), Georges-Köhler-Allee 105, 79110 Freiburg, Germany
| | - M. Vöhringer
- Bioactive Polymer Synthesis and Surface Engineering Group, Department of Microsystems Engineering (IMTEK) and Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), Georges-Köhler-Allee 105, 79110 Freiburg, Germany
| | - V. T. Widyaya
- Bioactive Polymer Synthesis and Surface Engineering Group, Department of Microsystems Engineering (IMTEK) and Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), Georges-Köhler-Allee 105, 79110 Freiburg, Germany
| | - K. Lienkamp
- Bioactive Polymer Synthesis and Surface Engineering Group, Department of Microsystems Engineering (IMTEK) and Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), Georges-Köhler-Allee 105, 79110 Freiburg, Germany
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28
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Chen Y, Yu P, Ren G, Zhang Q, Han Q, Teng H. Interpenetration of Polyethylene Terephthalate with Biocidal Quaternary Ammonium/N-Chloramine Polysiloxane in Supercritical CO2. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02544] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yong Chen
- Department
of Applied Chemistry, College of Chemical and Environmental
Engineering, ‡Analytical and Testing Center, School of Materials Science and Engineering, and §Department of
Biological Engineering, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, People’s Republic of China
| | - Panwei Yu
- Department
of Applied Chemistry, College of Chemical and Environmental
Engineering, ‡Analytical and Testing Center, School of Materials Science and Engineering, and §Department of
Biological Engineering, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, People’s Republic of China
| | - Guoyuan Ren
- Department
of Applied Chemistry, College of Chemical and Environmental
Engineering, ‡Analytical and Testing Center, School of Materials Science and Engineering, and §Department of
Biological Engineering, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, People’s Republic of China
| | - Qiang Zhang
- Department
of Applied Chemistry, College of Chemical and Environmental
Engineering, ‡Analytical and Testing Center, School of Materials Science and Engineering, and §Department of
Biological Engineering, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, People’s Republic of China
| | - Qiuxia Han
- Department
of Applied Chemistry, College of Chemical and Environmental
Engineering, ‡Analytical and Testing Center, School of Materials Science and Engineering, and §Department of
Biological Engineering, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, People’s Republic of China
| | - Hongni Teng
- Department
of Applied Chemistry, College of Chemical and Environmental
Engineering, ‡Analytical and Testing Center, School of Materials Science and Engineering, and §Department of
Biological Engineering, College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, People’s Republic of China
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29
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Du Z, Deng S, Zhang S, Wang W, Wang B, Huang J, Wang Y, Yu G, Xing B. Selective and Fast Adsorption of Perfluorooctanesulfonate from Wastewater by Magnetic Fluorinated Vermiculite. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:8027-8035. [PMID: 28614945 DOI: 10.1021/acs.est.6b06540] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A novel magnetic fluorinated adsorbent with selective and fast adsorption of perfluorooctanesulfonate (PFOS) was synthesized via a simple ball milling of Fe3O4 and vermiculite loaded with a cationic fluorinated surfactant. The loaded Fe3O4 nanoparticles increased the dispersibility of fluorinated vermiculite (F-VT) in water and allowed the magnetic separability. The nanosized Fe3O4 was homogeneously embedded into the adsorbent surfaces, improving the hydrophilicity of F-VT external surface, and this hybrid adsorbent still kept the hydrophobic fluorinated interlayer structure. With this unique property, Fe3O4-loaded F-VT has very fast and selective adsorption for PFOS in the presence of other compounds, due to the fluorophilicity of C-F chains intercalated in the adsorbent interlayers. This novel adsorbent has a high sorption capacity for PFOS, exhibiting PFOS removal from fire-fighting foam wastewater that is much higher than that of powdered activated carbon and resin due to its high selectivity for PFOS. The used Fe3O4-loaded F-VT was successfully regenerated by methanol and reused five times without reduction in PFOS removal and magnetic performance. The Fe3O4-loaded F-VT demonstrates promising application for PFOS removal from real wastewater.
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Affiliation(s)
- Ziwen Du
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University , Beijing 100084, China
- Stockbridge School of Agriculture, University of Massachusetts , Amherst, Massachusetts 01003, United States
| | - Shubo Deng
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University , Beijing 100084, China
| | - Siyu Zhang
- Key Laboratory of Pollution Ecology and Environmental Engineering, and Institute of Applied Ecology, Chinese Academy of Science , Shenyang 110016, China
| | - Wei Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University , Beijing 100084, China
| | - Bin Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University , Beijing 100084, China
| | - Jun Huang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University , Beijing 100084, China
| | - Yujue Wang
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University , Beijing 100084, China
| | - Gang Yu
- State Key Joint Laboratory of Environment Simulation and Pollution Control (SKLESPC), Beijing Key Laboratory for Emerging Organic Contaminants Control, School of Environment, Tsinghua University , Beijing 100084, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts , Amherst, Massachusetts 01003, United States
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30
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Chen M, Ouyang L, Lu T, Wang H, Meng F, Yang Y, Ning C, Ma J, Liu X. Enhanced Bioactivity and Bacteriostasis of Surface Fluorinated Polyetheretherketone. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16824-16833. [PMID: 28474880 DOI: 10.1021/acsami.7b02521] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Although polyetheretherketone (PEEK) has been considered as a potential orthopedic and dental application material due to its similar elastic modulus as bones, inferior osseointegration and bacteriostasis of PEEK hampers its clinical application. In this work, fluorinated PEEK was constructed via plasma immersion ion implantation (PIII) followed by hydrofluoric acid treatment to ameliorate the osseointegration and antibacterial properties of PEEK. The surface microstructure, composition, and hydrophilicity of all samples were investigated. Rat bone mesenchymal stem cells (rBMSCs) were cultured on their surfaces to estimate bioactivity. The fluorinated PEEK can enhance the cell adhesion, cell spreading, proliferation, and alkaline phosphatase (ALP) activity compared to pristine PEEK. Furthermore, the fluorinated PEEK surface exhibits good bacteriostatic effect against Porphyromonas gingivalis, which is one of the major periodontal pathogens. In summary, we provide an effective route to introduce fluorine and the results reveal that the fluorinated PEEK can enhance the osseointegration and bacteriostasis, which provides a potential candidate for dental implants.
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Affiliation(s)
- Meiling Chen
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, P. R. China
| | - Liping Ouyang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China
- University of Chinese Academy of Science , Beijing 100049, P. R. China
| | - Tao Lu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China
| | - Heying Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China
| | - Fanhao Meng
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China
| | - Yan Yang
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, P. R. China
| | - Congqin Ning
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China
| | - Jingzhi Ma
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, P. R. China
| | - Xuanyong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, P. R. China
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31
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Wang L, Wen S, Li Z. Synthesis of amphiphilic ABA triblock oligomer via ATRP and its surface properties. CAN J CHEM 2017. [DOI: 10.1139/cjc-2016-0591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A series of novel amphiphilic ABA-type poly(tridecafluorooctylacrylate)-poly(ethylene glycol)-poly(tridecafluorooctylacrylate) (henceforth referred to as p-TDFA-PEG-p-TDFA) triblock oligomers were successfully synthesized via atom transfer radical polymerization (ATRP) using well-defined Br-PEG-Br as macroinitiator and copper as catalyst. The block oligomers were characterized by Fourier transform infrared (FTIR) spectroscopy and 1H and 19F nuclear magnetic resonances (NMR). Gel permeation chromatography (GPC) showed that the block oligomers have been obtained with narrow molecular weight distributions of 1.22–1.33. X-ray photoelectron spectroscopy (XPS) was carried out to confirm the attachment of p-TDFA-PEG-p-TDFA onto the silicon substrate, together with the chemical compositions of p-TDFA-PEG-p-TDFA. The wetabilities of the oligomer films were measured by water contact angles (CAs). Water CAs of p-TDFA-PEG-p-TDFA film were measured and their morphologies were tested by atomic force microscopy (AFM). The result showed that the CAs of the oligomer films, which possess fluoroalkyl groups assembled on the outer surface, increase after heating due to the migration of fluoroalkyl groups and the resulted microphase separation of the p-TDFA-PEG-p-TDFA.
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Affiliation(s)
- Lei Wang
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215021, China
- National Engineering Laboratory for Modern Silk, Suzhou 215123, China
| | - Shaoqing Wen
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215021, China
- National Engineering Laboratory for Modern Silk, Suzhou 215123, China
| | - Zhanxiong Li
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215021, China
- National Engineering Laboratory for Modern Silk, Suzhou 215123, China
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32
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Patterson AL, Wenning B, Rizis G, Calabrese DR, Finlay JA, Franco SC, Zuckermann RN, Clare AS, Kramer EJ, Ober CK, Segalman RA. Role of Backbone Chemistry and Monomer Sequence in Amphiphilic Oligopeptide- and Oligopeptoid-Functionalized PDMS- and PEO-Based Block Copolymers for Marine Antifouling and Fouling Release Coatings. Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02505] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
| | | | | | | | - John A. Finlay
- School
of Marine Science and Technology, Newcastle University, Newcastle
upon Tyne NE17RU, U.K
| | - Sofia C. Franco
- School
of Marine Science and Technology, Newcastle University, Newcastle
upon Tyne NE17RU, U.K
| | - Ronald N. Zuckermann
- The
Molecular
Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Anthony S. Clare
- School
of Marine Science and Technology, Newcastle University, Newcastle
upon Tyne NE17RU, U.K
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33
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Chen Y, Zhang Q, Han Q, Mi Y, Sun S, Feng C, Xiao H, Yu P, Yang C. Synthesis of polysiloxane with 5,5-dimethylhydantoin-basedN-halamine pendants for biocidal functionalization of polyethylene by supercritical impregnation. J Appl Polym Sci 2017. [DOI: 10.1002/app.44721] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Yong Chen
- Department of Applied Chemistry, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Qiang Zhang
- Analytical and Testing Center, School of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Qiuxia Han
- Department of Biological Engineering, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Yazhen Mi
- Department of Applied Chemistry, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Shuwei Sun
- Department of Applied Chemistry, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Chunyan Feng
- Department of Applied Chemistry, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Han Xiao
- Department of Applied Chemistry, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Panwei Yu
- Department of Applied Chemistry, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Cuiying Yang
- Analytical and Testing Center, College of Chemical & Environmental Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
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34
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Moor KJ, Osuji CO, Kim JH. Dual-Functionality Fullerene and Silver Nanoparticle Antimicrobial Composites via Block Copolymer Templates. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33583-33591. [PMID: 27960391 DOI: 10.1021/acsami.6b10674] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We present the facile prepartion of C70 and Ag nanoparticle (NP) loaded block copolymer (BCP) thin films, with C70 and Ag NPs working in tandem to provide virucidal and bactericidal activities, respectively. Polystyrene-block-poly-4-vinylpyridine (PS-P4VP) was used as a template, allowing C70 integration into PS domains and in situ formation of Ag NPs in P4VP domains, while providing control of the nanoscale spatial distribution of functionality as a function of BCP molecular weight (MW). C70 loaded PS-P4VP films were found to generate significant amounts of 1O2 under visible light illumination with no apparent dependence on BCP MW. An analogous C70 loaded PS homopolymer film produced notably less 1O2, highlighting a possible critical role of morphology on C70 photoactivity. The antimicrobial activity of Ag NP and C70 loaded composites against the model PR772 bacteriophage and Escherichia coli was assessed, finding synergistic inactivation afforded by the dual functionality. BCPs were demonstrated as versatile platforms for the preparation of multifunctional antimicrobial coatings toward combating diverse microbial communities.
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Affiliation(s)
- Kyle J Moor
- Department of Chemical & Environmental Engineering, School of Engineering & Applied Science, Yale University , 9 Hillhouse Avenue, New Haven, Connecticut 06511, United States
| | - Chinedum O Osuji
- Department of Chemical & Environmental Engineering, School of Engineering & Applied Science, Yale University , 9 Hillhouse Avenue, New Haven, Connecticut 06511, United States
| | - Jae-Hong Kim
- Department of Chemical & Environmental Engineering, School of Engineering & Applied Science, Yale University , 9 Hillhouse Avenue, New Haven, Connecticut 06511, United States
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35
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Antibacterial/Antiviral Property and Mechanism of Dual-Functional Quaternized Pyridinium-type Copolymer. Polymers (Basel) 2015. [DOI: 10.3390/polym7111514] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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36
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Pester CW, Poelma JE, Narupai B, Patel SN, Su GM, Mates TE, Luo Y, Ober CK, Hawker CJ, Kramer EJ. Ambiguous anti-fouling surfaces: Facile synthesis by light-mediated radical polymerization. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27748] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Christian W. Pester
- Materials Department; University of California; Santa Barbara California 93106
- Materials Research Laboratory; University of California; Santa Barbara California 93106
- Department of Chemical Engineering; University of California; Santa Barbara California 93106
| | - Justin E. Poelma
- Materials Department; University of California; Santa Barbara California 93106
- Materials Research Laboratory; University of California; Santa Barbara California 93106
| | - Benjaporn Narupai
- Materials Department; University of California; Santa Barbara California 93106
- Materials Research Laboratory; University of California; Santa Barbara California 93106
| | - Shrayesh N. Patel
- Materials Department; University of California; Santa Barbara California 93106
| | - Gregory M. Su
- Materials Department; University of California; Santa Barbara California 93106
- Department of Chemical Engineering; University of California; Santa Barbara California 93106
| | - Thomas E. Mates
- Materials Department; University of California; Santa Barbara California 93106
| | - Yingdong Luo
- Materials Department; University of California; Santa Barbara California 93106
- Department of Chemistry and Biochemistry; University of California; Santa Barbara California 93106
| | - Christopher K. Ober
- Department of Materials Science and Engineering; Cornell University; Ithaca New York 14853
| | - Craig J. Hawker
- Materials Department; University of California; Santa Barbara California 93106
- Materials Research Laboratory; University of California; Santa Barbara California 93106
- Department of Chemistry and Biochemistry; University of California; Santa Barbara California 93106
| | - Edward J. Kramer
- Materials Department; University of California; Santa Barbara California 93106
- Materials Research Laboratory; University of California; Santa Barbara California 93106
- Department of Chemical Engineering; University of California; Santa Barbara California 93106
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37
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Zou P, Laird D, Riga EK, Deng Z, Dorner F, Perez-Hernandez HR, Guevara-Solarte DL, Steinberg T, Al-Ahmad A, Lienkamp K. Antimicrobial and cell-compatible surface-attached polymer networks - how the correlation of chemical structure to physical and biological data leads to a modified mechanism of action. J Mater Chem B 2015; 3:6224-6238. [PMID: 32262741 DOI: 10.1039/c5tb00906e] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We present a synthetic platform based on photo-induced thiol-ene chemistry, by which surface-attached networks from antimicrobial poly(oxonorbornene) (so-called polymeric synthetic mimics of antimicrobial peptides, SMAMPs) could be easily obtained. By systematically varying hydrophobicity and charge density, surface-attached polymer networks with high antimicrobial activity and excellent cell compatibility were obtained. For the homopolymer networks with constant charge density, antimicrobial activity increased systematically with increasing hydrophobicity (i.e. decreasing swellability and apparent surface energy). Irrespective of charge density, the antimicrobial activity of all networks correlated with the acid constant pK and the isoelectric point (IEP) - the lower pK and IEP, the higher the antimicrobial activity. The cell compatibility of the networks increased with increasing swellability and apparent surface energy, and decreased with increasing charge density. The data corroborates that the mechanism of action of antimicrobial polymer surfaces depends on at least two mechanistic steps, one of which is hydrophobicity-driven and the other charge related. Therefore, we suggest a modified mechanistic model with a charge-driven and a hydrophobicity-driven step. For antimicrobial networks that only varied in hydrophobicity, the antimicrobial activities on surfaces and in solution also correlated - the higher the activity in solution, the higher the activity on surfaces. Thus, the hydrophobicity-driven step for activity on surfaces may be similar to the one in solution. Cell compatibility of SMAMPs in solution and on surfaces also showed a systematic positive correlation for all polymers, therefore this property also depends on the net hydrophobic balance of the polymer.
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Affiliation(s)
- Peng Zou
- Department of Microsystems Engineering (IMTEK), Albert-Ludwigs-Universität, Georges-Köhler-Allee 103, 79110 Freiburg, Germany.
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38
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Chen A, Blakey I, Jack KS, Whittaker AK, Peng H. Control through monomer placement of surface properties and morphology of fluoromethacrylate copolymers. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27731] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ao Chen
- Australian Institute for Bioengineering and Nanotechnology; The University of Queensland; Brisbane Queensland 4072 Australia
| | - Idriss Blakey
- Australian Institute for Bioengineering and Nanotechnology; The University of Queensland; Brisbane Queensland 4072 Australia
- Centre for Advanced Imaging; The University of Queensland; Brisbane Queensland 4072 Australia
| | - Kevin S. Jack
- Centre for Microscopy and Microanalysis; The University of Queensland; Brisbane Queensland 4072 Australia
| | - Andrew K. Whittaker
- Australian Institute for Bioengineering and Nanotechnology; The University of Queensland; Brisbane Queensland 4072 Australia
- Centre for Advanced Imaging; The University of Queensland; Brisbane Queensland 4072 Australia
- Australian Research Council Centre of Excellence for Convergent Bio-Nano Science and Technology
| | - Hui Peng
- Australian Institute for Bioengineering and Nanotechnology; The University of Queensland; Brisbane Queensland 4072 Australia
- Australian Research Council Centre of Excellence for Convergent Bio-Nano Science and Technology
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39
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Influence of alkyl chain length on the surface activity of antibacterial polymers derived from ROMP. Colloids Surf B Biointerfaces 2015; 127:73-8. [DOI: 10.1016/j.colsurfb.2015.01.020] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 01/09/2015] [Accepted: 01/13/2015] [Indexed: 12/26/2022]
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40
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Chen Y, Han Q, Wang Y, Zhang Q, Qiao X. Synthesis of pyridinium polysiloxane for antibacterial coating in supercritical carbon dioxide. J Appl Polym Sci 2014. [DOI: 10.1002/app.41723] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yong Chen
- Department of Applied Chemistry; College of Chemical & Environmental Engineering, Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Qiuxia Han
- Department of Biological Engineering; College of Chemical & Environmental Engineering, Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Yali Wang
- Department of Applied Chemistry; College of Chemical & Environmental Engineering, Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Qiang Zhang
- Analytical and Testing Center, School of Materials Science and Engineering; Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
| | - Xuxu Qiao
- Department of Applied Chemistry; College of Chemical & Environmental Engineering, Shandong University of Science and Technology; Qingdao 266590 People's Republic of China
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41
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Synthesis and characterization of microphase separated primary amine functionalized polystyrene-b-poly(2-vinylpyridine). POLYMER 2014. [DOI: 10.1016/j.polymer.2014.10.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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42
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Zhan X, Zhang G, Zhang Q, Chen F. Preparation, surface wetting properties, and protein adsorption resistance of well-defined amphiphilic fluorinated diblock copolymers. J Appl Polym Sci 2014. [DOI: 10.1002/app.41167] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaoli Zhan
- Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou Zhejiang 310027 People's Republic of China
| | - Guangfa Zhang
- Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou Zhejiang 310027 People's Republic of China
| | - Qinghua Zhang
- Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou Zhejiang 310027 People's Republic of China
| | - Fengqiu Chen
- Department of Chemical and Biological Engineering; Zhejiang University; Hangzhou Zhejiang 310027 People's Republic of China
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Umadevi M, Sangari M, Parimaladevi R, Sivanantham A, Mayandi J. Enhanced photocatalytic, antimicrobial activity and photovoltaic characteristics of fluorine doped TiO2 synthesized under ultrasound irradiation. J Fluor Chem 2013. [DOI: 10.1016/j.jfluchem.2013.10.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Zhao Z, Ni H, Han Z, Jiang T, Xu Y, Lu X, Ye P. Effect of surface compositional heterogeneities and microphase segregation of fluorinated amphiphilic copolymers on antifouling performance. ACS APPLIED MATERIALS & INTERFACES 2013; 5:7808-7818. [PMID: 23919520 DOI: 10.1021/am401568b] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
In this paper, a series of fluorinated amphiphilic copolymers composed of 2-perfluorooctylethyl methacrylate (FMA) and 2-hydroxyethyl methacrylate (HEMA) monomers were prepared, and their surface properties and antifouling performance were investigated. Bovine serum albumin (BSA) and human plasma fibrinogen (HFg) were used as model proteins to study protein adsorption onto the fluorinated amphiphilic surfaces. All the fluorinated amphiphilic surfaces exhibit excellent resistant performance of protein adsorption measured by X-ray photoelectron spectroscopy (XPS). The surface compositional heterogeneities on the molecular scale play an important role in the antifouling properties. It was found that the copolymers exhibited better antifouling properties than the corresponding homopolymers did, when the percentage of hydrophilic hydroxyl groups is from 4% to 7% and the percentage of hydrophobic fluorinated moieties is from 4% to 14% on the surface. In addition, the protein molecular size scale and the pattern of microphase segregation domains on the surface strongly affect the protein adsorption behaviors. These results demonstrate the desirable protein-resistant performance from the fluorinated amphiphilic copolymers and provide deeper insight of the effect of surface compositional heterogeneity and microphase segregation on the protein adsorption behaviors.
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Affiliation(s)
- Zeliang Zhao
- Department of Chemistry, Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University, Hangzhou 310018, China
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Seo S, Yoon Y, Lee J, Park Y, Lee H. Nitrogen-doped partially reduced graphene oxide rewritable nonvolatile memory. ACS NANO 2013; 7:3607-3615. [PMID: 23521146 DOI: 10.1021/nn400588u] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
As memory materials, two-dimensional (2D) carbon materials such as graphene oxide (GO)-based materials have attracted attention due to a variety of advantageous attributes, including their solution-processability and their potential for highly scalable device fabrication for transistor-based memory and cross-bar memory arrays. In spite of this, the use of GO-based materials has been limited, primarily due to uncontrollable oxygen functional groups. To induce the stable memory effect by ionic charges of a negatively charged carboxylic acid group of partially reduced graphene oxide (PrGO), a positively charged pyridinium N that served as a counterion to the negatively charged carboxylic acid was carefully introduced on the PrGO framework. Partially reduced N-doped graphene oxide (PrGODMF) in dimethylformamide (DMF) behaved as a semiconducting nonvolatile memory material. Its optical energy band gap was 1.7-2.1 eV and contained a sp2 C═C framework with 45-50% oxygen-functionalized carbon density and 3% doped nitrogen atoms. In particular, rewritable nonvolatile memory characteristics were dependent on the proportion of pyridinum N, and as the proportion of pyridinium N atom decreased, the PrGODMF film lost memory behavior. Polarization of charged PrGODMF containing pyridinium N and carboxylic acid under an electric field produced N-doped PrGODMF memory effects that followed voltage-driven rewrite-read-erase-read processes.
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Affiliation(s)
- Sohyeon Seo
- National Creative Research Initiative, Center for Smart Molecular Memory, Department of Chemistry, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon, Gyeonggi-do 440-746, Korea
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Cheng F, Bonder EM, Salem S, Jäkle F. Pyridine-Functionalized Luminescent Organoboron Quinolate Block Copolymers as Versatile Building Blocks for Assembled Nanostructures. Macromolecules 2013. [DOI: 10.1021/ma400310s] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Fei Cheng
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark,
New Jersey 07102, United States
| | - Edward M. Bonder
- Department of Biological Sciences, Rutgers University-Newark, 195 University Avenue, Newark, New Jersey 07102, United States
| | - Shadwa Salem
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark,
New Jersey 07102, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark,
New Jersey 07102, United States
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Tripathi BP, Dubey NC, Choudhury S, Simon F, Stamm M. Antifouling and antibiofouling pH responsive block copolymer based membranes by selective surface modification. J Mater Chem B 2013; 1:3397-3409. [DOI: 10.1039/c3tb20386g] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Abstract
Antimicrobial surfaces for food and medical applications have historically involved antimicrobial coatings that elute biocides for effective kill in solution or at surfaces. However, recent efforts have focused on immobilized antimicrobial agents in order to avoid toxicity and the compatibility and reservoir limitations common to elutable agents. This review critically examines the assorted antimicrobial agents reported to have been immobilized, with an emphasis on the interpretation of antimicrobial testing as it pertains to discriminating between eluting and immobilized agents. Immobilization techniques and modes of antimicrobial action are also discussed.
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Cho Y, Sundaram HS, Finlay JA, Dimitriou MD, Callow ME, Callow JA, Kramer EJ, Ober CK. Reconstruction of Surfaces from Mixed Hydrocarbon and PEG Components in Water: Responsive Surfaces Aid Fouling Release. Biomacromolecules 2012; 13:1864-74. [DOI: 10.1021/bm300363g] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Youngjin Cho
- Department of Materials Science
and Engineering, Cornell University, Ithaca,
New York 14853, United States
| | - Harihara S. Sundaram
- Department of Materials Science
and Engineering, Cornell University, Ithaca,
New York 14853, United States
| | - John A. Finlay
- School of Biosciences, The University of Birmingham, Birmingham B15 2TT, United
Kingdom
| | - Michael D. Dimitriou
- Department of Materials, University of California, Santa Barbara, California
93106, United States
| | - Maureen E. Callow
- School of Biosciences, The University of Birmingham, Birmingham B15 2TT, United
Kingdom
| | - James A. Callow
- School of Biosciences, The University of Birmingham, Birmingham B15 2TT, United
Kingdom
| | - Edward J. Kramer
- Department of Materials, University of California, Santa Barbara, California
93106, United States
- Department
of Chemical Engineering, University of California, Santa Barbara, California
93106, United States
| | - Christopher K. Ober
- Department of Materials Science
and Engineering, Cornell University, Ithaca,
New York 14853, United States
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Carpenter BL, Feese E, Sadeghifar H, Argyropoulos DS, Ghiladi RA. Porphyrin-Cellulose Nanocrystals: A Photobactericidal Material that Exhibits Broad Spectrum Antimicrobial Activity†. Photochem Photobiol 2012; 88:527-36. [DOI: 10.1111/j.1751-1097.2012.01117.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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