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Parkin HC, Street STG, Gowen B, Da-Silva-Correa LH, Hof R, Buckley HL, Manners I. Mechanism of Action and Design of Potent Antibacterial Block Copolymer Nanoparticles. J Am Chem Soc 2024; 146:5128-5141. [PMID: 38356186 DOI: 10.1021/jacs.3c09033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Self-assembled polymer nanoparticles are promising antibacterials, with nonspherical morphologies of particular interest as recent work has demonstrated enhanced antibacterial activity relative to their spherical counterparts. However, the reasons for this enhancement are currently unclear. We have performed a multifaceted analysis of the antibacterial mechanism of action of 1D nanofibers relative to nanospheres by the use of flow cytometry, high-resolution microscopy, and evaluations of the antibacterial activity of pristine and tetracycline-loaded nanoparticles. Low-length dispersity, fluorescent diblock copolymer nanofibers with a crystalline poly(fluorenetrimethylenecarbonate) (PFTMC) core (length = 104 and 472 nm, height = 7 nm, width = 10-13 nm) and a partially protonated poly(dimethylaminoethyl methacrylate) (PDMAEMA) corona (length = 12 nm) were prepared via seeded growth living crystallization-driven self-assembly. Their behavior was compared to that of analogous nanospheres containing an amorphous PFTMC core (diameter of 12 nm). While all nanoparticles were uptaken into Escherichia coli W3110, crystalline-core nanofibers were observed to cause significant bacterial damage. Drug loading studies indicated that while all nanoparticle antibacterial activity was enhanced in combination with tetracycline, the enhancement was especially prominent when small nanoparticles (ca. 15-25 nm) were employed. Therefore, the identified differences in the mechanism of action and the demonstrated consequences for nanoparticle size and morphology control may be exploited for the future design of potent antibacterial agents for overcoming antibacterial resistance. This study also reinforces the requirement of morphological control over polymer nanoparticles for biomedical applications, as differences in activity are observed depending on their size, shape, and core-crystallinity.
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Affiliation(s)
- Hayley C Parkin
- Department of Chemistry, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
| | - Steven T G Street
- Department of Chemistry, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
| | - Brent Gowen
- Department of Biology, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
| | - Luiz H Da-Silva-Correa
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
- Department of Civil Engineering, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
| | - Rebecca Hof
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
| | - Heather L Buckley
- Department of Chemistry, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
- Department of Civil Engineering, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
| | - Ian Manners
- Department of Chemistry, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
- Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, 3800 Finnerty Road, Victoria, British Columbia V8P 5C2, Canada
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Parkin H, Garcia-Hernandez JD, Street STG, Hof R, Manners I. Uniform, Length-Tunable Antibacterial 1D Diblock Copolymer Nanofibers. Polym Chem 2022. [DOI: 10.1039/d2py00262k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rapid increase in antibiotic resistant strains of bacteria has led to an urgent need to develop new methods of treating bacterial infections. Antibacterial polymeric nanoparticles are of interest for...
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Eskandari P, Abousalman-Rezvani Z, Roghani-Mamaqani H, Salami-Kalajahi M. Polymer-functionalization of carbon nanotube by in situ conventional and controlled radical polymerizations. Adv Colloid Interface Sci 2021; 294:102471. [PMID: 34214841 DOI: 10.1016/j.cis.2021.102471] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 06/20/2021] [Accepted: 06/21/2021] [Indexed: 02/07/2023]
Abstract
Functionalization of carbon nanotube (CNT) with polymers has drawn much attention due to its wide range of applications. Polymer-functionalized CNT could exhibit variety of properties, such as responsivity to environmental stimuli, ability of complexation with metal ions, increased dispersibility in different solvents, higher compatibility with polymer matrix, etc. Chemical and physical methods have been developed for the preparation of polymer-functionalized CNT. Polymer chains are chemically bonded to the CNT edge or surface in the chemical methods, which results in highly stable CNT/polymer composites. "Grafting to", "grafting from", and "grafting through" methods are the most common chemical methods for polymer-functionalization of CNT. In "grafting to" method, pre-fabricated polymer chains are coupled with the either functionalized or non-functionalized CNT. In "grafting from" and "grafting through" methods, CNT is functionalized by polymers simultaneously synthesized by in situ polymerization methods. Conventional free radical polymerization (FRP) and also controlled radical polymerization (CRP) are the most promising methods for in situ tethering of polymer brushes onto the surface of CNT due to their control over the grafting density, thickness, and functionality of the polymer brushes. The main focus of this review is on the synthesis of polymer-functionalized CNT via both the "grafting from" and "grafting through" methods on the basis of FRP and CRP routs, which is commonly known as in situ polymerizations. Finally, the most important challenges and applications of the in situ polymer grafting methods are discussed, which could be interesting for the future works.
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Kim TY, Koo KM, Yun G, Kim Y. Chemiresistor sensor using elastomer‐functionalized carbon nanotube nanocomposites for the detection of gasoline spills. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25705] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tae Y. Kim
- Department of Nanoscience and Engineering Inje University Gimhae South Korea
| | - Kwon M. Koo
- Department of Nanoscience and Engineering Inje University Gimhae South Korea
| | - Gayeong Yun
- Department of Nanoscience and Engineering Inje University Gimhae South Korea
| | - Yangsoo Kim
- Department of Nanoscience and Engineering Inje University Gimhae South Korea
- Department of Nanoscience and Engineering, High Safety Vehicle Core Technology Research Center Inje University Gimhae South Korea
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Namivandi-Zangeneh R, Wong EHH, Boyer C. Synthetic Antimicrobial Polymers in Combination Therapy: Tackling Antibiotic Resistance. ACS Infect Dis 2021; 7:215-253. [PMID: 33433995 DOI: 10.1021/acsinfecdis.0c00635] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Antibiotic resistance is a critical global healthcare issue that urgently needs new effective solutions. While small molecule antibiotics have been safeguarding us for nearly a century since the discovery of penicillin by Alexander Fleming, the emergence of a new class of antimicrobials in the form of synthetic antimicrobial polymers, which was driven by the advances in controlled polymerization techniques and the desire to mimic naturally occurring antimicrobial peptides, could play a key role in fighting multidrug resistant bacteria in the near future. By harnessing the ability to control chemical and structural properties of polymers almost at will, synthetic antimicrobial polymers can be strategically utilized in combination therapy with various antimicrobial coagents in different formats to yield more potent (synergistic) outcomes. In this review, we present a short summary of the different combination therapies involving synthetic antimicrobial polymers, focusing on their combinations with nitric oxide, antibiotics, essential oils, and metal- and carbon-based inorganics.
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Affiliation(s)
- Rashin Namivandi-Zangeneh
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine (ACN), School of Chemical Engineering, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Edgar H. H. Wong
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine (ACN), School of Chemical Engineering, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design (CAMD) and Australian Centre for NanoMedicine (ACN), School of Chemical Engineering, UNSW Australia, Sydney, New South Wales 2052, Australia
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Yañez-Macías R, Muñoz-Bonilla A, De Jesús-Tellez MA, Maldonado-Textle H, Guerrero-Sánchez C, Schubert US, Guerrero-Santos R. Combinations of Antimicrobial Polymers with Nanomaterials and Bioactives to Improve Biocidal Therapies. Polymers (Basel) 2019; 11:E1789. [PMID: 31683853 PMCID: PMC6918310 DOI: 10.3390/polym11111789] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 10/18/2019] [Accepted: 10/24/2019] [Indexed: 11/17/2022] Open
Abstract
The rise of antibiotic-resistant microorganisms has become a critical issue in recent years and has promoted substantial research efforts directed to the development of more effective antimicrobial therapies utilizing different bactericidal mechanisms to neutralize infectious diseases. Modern approaches employ at least two mixed bioactive agents to enhance bactericidal effects. However, the combinations of drugs may not always show a synergistic effect, and further, could also produce adverse effects or stimulate negative outcomes. Therefore, investigations providing insights into the effective utilization of combinations of biocidal agents are of great interest. Sometimes, combination therapy is needed to avoid resistance development in difficult-to-treat infections or biofilm-associated infections treated with common biocides. Thus, this contribution reviews the literature reports discussing the usage of antimicrobial polymers along with nanomaterials or other inhibitors for the development of more potent biocidal therapies.
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Affiliation(s)
- Roberto Yañez-Macías
- Centro de Investigación en Química Aplicada (CIQA), Boulevard Enrique Reyna No. 140, 25294 Saltillo, Mexico.
| | - Alexandra Muñoz-Bonilla
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain.
| | - Marco A De Jesús-Tellez
- Centro de Investigación y de Estudios Avanzados (CINVESTAV) Unidad Mérida, A.P. 73, Cordemex, 97310 Mérida, México.
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, D-07743 Jena, Germany.
| | - Hortensia Maldonado-Textle
- Centro de Investigación en Química Aplicada (CIQA), Boulevard Enrique Reyna No. 140, 25294 Saltillo, Mexico.
| | - Carlos Guerrero-Sánchez
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, D-07743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany.
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, D-07743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, D-07743 Jena, Germany.
| | - Ramiro Guerrero-Santos
- Centro de Investigación en Química Aplicada (CIQA), Boulevard Enrique Reyna No. 140, 25294 Saltillo, Mexico.
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Maas M. Carbon Nanomaterials as Antibacterial Colloids. MATERIALS 2016; 9:ma9080617. [PMID: 28773737 PMCID: PMC5509023 DOI: 10.3390/ma9080617] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/12/2016] [Accepted: 07/15/2016] [Indexed: 12/25/2022]
Abstract
Carbon nanomaterials like graphene, carbon nanotubes, fullerenes and the various forms of diamond have attracted great attention for their vast potential regarding applications in electrical engineering and as biomaterials. The study of the antibacterial properties of carbon nanomaterials provides fundamental information on the possible toxicity and environmental impact of these materials. Furthermore, as a result of the increasing prevalence of resistant bacteria strains, the development of novel antibacterial materials is of great importance. This article reviews current research efforts on characterizing the antibacterial activity of carbon nanomaterials from the perspective of colloid and interface science. Building on these fundamental findings, recent functionalization strategies for enhancing the antibacterial effect of carbon nanomaterials are described. The review concludes with a comprehensive outlook that summarizes the most important discoveries and trends regarding antibacterial carbon nanomaterials.
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Affiliation(s)
- Michael Maas
- Faculty of Production Engineering, Advanced Ceramics, MAPEX-Centre for Materials and Processes, University of Bremen, Bremen 28359, Germany.
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Tan Y, Zhang W, Li Y, Xia Y, Sui K. Grafting of multi-sensitive PDMAEMA brushes onto carbon nanotubes by ATNRC: tunable thickening/thinning and self-assembly behaviors in aqueous solutions. RSC Adv 2016. [DOI: 10.1039/c6ra20088e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Shear-induced thickening/thinning response of synthesized MWNTs-g-PDMAEMA suspensions was facially adjusted by altering the hydrophobic interaction, amount of f-PDMAEMA and grafted-chain length.
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Affiliation(s)
- Yeqiang Tan
- Collaborative Innovation Center for Marine Biomass Fibers
- Materials and Textiles of Shandong Province
- School of Materials Science and Engineering
- Qingdao University
- Qingdao
| | - Wenqian Zhang
- Collaborative Innovation Center for Marine Biomass Fibers
- Materials and Textiles of Shandong Province
- School of Materials Science and Engineering
- Qingdao University
- Qingdao
| | - Yanhui Li
- Collaborative Innovation Center for Marine Biomass Fibers
- Materials and Textiles of Shandong Province
- School of Materials Science and Engineering
- Qingdao University
- Qingdao
| | - Yanzhi Xia
- Collaborative Innovation Center for Marine Biomass Fibers
- Materials and Textiles of Shandong Province
- School of Materials Science and Engineering
- Qingdao University
- Qingdao
| | - Kunyan Sui
- Collaborative Innovation Center for Marine Biomass Fibers
- Materials and Textiles of Shandong Province
- School of Materials Science and Engineering
- Qingdao University
- Qingdao
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Yao X, Du H, Xu N, Sun S, Zhu W, Shen Z. Fully degradable antibacterial poly(ester-phosphoester)s by ring-opening polymerization, “click” chemistry, and quaternization. J Appl Polym Sci 2015. [DOI: 10.1002/app.42647] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xuxia Yao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Hong Du
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Ning Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Shuai Sun
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Weipu Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
| | - Zhiquan Shen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization; Department of Polymer Science and Engineering; Zhejiang University; Hangzhou 310027 People's Republic of China
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Zhang X, Luo G, Zhu M, Kang L, Yu F, Dai B. Application of a H4SiMo12O40@SiO2 catalyst with a hollow core–shell structure to oxidative desulfurization. RSC Adv 2015. [DOI: 10.1039/c5ra14307a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Designing a catalyst with excellent recyclability to improve oxidative desulfurization continues to challenge many researchers.
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Affiliation(s)
- Xiaotian Zhang
- School of Chemistry and Chemical Engineering of Shihezi University
- Shihezi
- P. R. China
| | - Guangqin Luo
- School of Chemistry and Chemical Engineering of Shihezi University
- Shihezi
- P. R. China
| | - Mingyuan Zhu
- School of Chemistry and Chemical Engineering of Shihezi University
- Shihezi
- P. R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi
| | - Lihua Kang
- School of Chemistry and Chemical Engineering of Shihezi University
- Shihezi
- P. R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi
| | - Feng Yu
- School of Chemistry and Chemical Engineering of Shihezi University
- Shihezi
- P. R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi
| | - Bin Dai
- School of Chemistry and Chemical Engineering of Shihezi University
- Shihezi
- P. R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi
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Chakraborty A, Patni P, Suhag D, Saini G, Singh A, Chakrabarti S, Mukherjee M. N-doped carbon nanosheets with antibacterial activity: mechanistic insight. RSC Adv 2015. [DOI: 10.1039/c4ra17049k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Carbon nanosheets with sharp “knife-like” edges interact with an E. coli bacterial membrane resulting in cell death.
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Affiliation(s)
- Amlan Chakraborty
- Biomimetic and Nanostructured Materials Research Laboratory
- Amity Institute of Biotechnology
- Amity University Uttar Pradesh
- Noida
- India
| | - Pranav Patni
- Biomimetic and Nanostructured Materials Research Laboratory
- Amity Institute of Biotechnology
- Amity University Uttar Pradesh
- Noida
- India
| | - Deepa Suhag
- Biomimetic and Nanostructured Materials Research Laboratory
- Amity Institute of Biotechnology
- Amity University Uttar Pradesh
- Noida
- India
| | - Gajender Saini
- Advance Instrumentation Research Facility
- Jawaharlal Nehru University
- New Delhi
- India
| | - Anirudha Singh
- Faculty of Translational Tissue Engineering Center & Dept. of Urology
- Johns Hopkins School of Medicine
- Baltimore
- USA
| | - Sandip Chakrabarti
- Amity Institute of Nanotechnology
- Amity University Uttar Pradesh
- Noida
- India
| | - Monalisa Mukherjee
- Biomimetic and Nanostructured Materials Research Laboratory
- Amity Institute of Biotechnology
- Amity University Uttar Pradesh
- Noida
- India
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Jeong Y, Moon BC, Jang MC, Kim Y. Preparation and Characterization of Conducting Polymer Nanocomposites Including Graphene Oxide via In-situ Chemical Polymerization. POLYMER-KOREA 2014. [DOI: 10.7317/pk.2014.38.2.180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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13
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Zhu M, Luo G, Kang L, Dai B. Novel catalyst by immobilizing a phosphotungstic acid on polymer brushes and its application in oxidative desulfurization. RSC Adv 2014. [DOI: 10.1039/c4ra01367k] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the study, an HPW–PDMAEMA–SiO2 (phosphotungstic acid (HPW); poly-N,N-dimethylaminoethyl methacrylate (PDMAEAM)) catalyst was successfully synthesized.
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Affiliation(s)
- Mingyuan Zhu
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi, P. R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi, P. R. China
| | - Guangqin Luo
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi, P. R. China
| | - Lihua Kang
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi, P. R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi, P. R. China
| | - Bin Dai
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi, P. R. China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
- Shihezi, P. R. China
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Kawauchi Y, Kouka A, Guragain S, Bastakoti BP, Yusa SI, Nakashima K. Schizophrenic micelles of poly(3-(methacryloylamino)propyltrimethylammonium chloride-b-2-(dimethylamino)ethyl methacrylate) in aqueous solutions. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.05.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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