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Nanoparticles Surface Chemistry Influence on Protein Corona Composition and Inflammatory Responses. NANOMATERIALS 2022; 12:nano12040682. [PMID: 35215013 PMCID: PMC8879273 DOI: 10.3390/nano12040682] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/30/2022] [Accepted: 02/15/2022] [Indexed: 12/24/2022]
Abstract
Nanoparticles are widely used for biomedical applications such as vaccine, drug delivery, diagnostics, and therapeutics. This study aims to reveal the influence of nanoparticle surface functionalization on protein corona formation from blood serum and plasma and the subsequent effects on the innate immune cellular responses. To achieve this goal, the surface chemistry of silica nanoparticles of 20 nm diameter was tailored via plasma polymerization with amine, carboxylic acid, oxazolines, and alkane functionalities. The results of this study show significant surface chemistry-induced differences in protein corona composition, which reflect in the subsequent inflammatory consequences. Nanoparticles rich with carboxylic acid surface functionalities increased the production of pro-inflammatory cytokines in response to higher level of complement proteins and decreased the number of lipoproteins found in their protein coronas. On another hand, amine rich coatings led to increased expressions of anti-inflammatory markers such as arginase. The findings demonstrate the potential to direct physiological responses to nanomaterials via tailoring their surface chemical composition.
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Antimicrobial Peptides Grafted onto a Plasma Polymer Interlayer Platform: Performance upon Extended Bacterial Challenge. COATINGS 2021. [DOI: 10.3390/coatings11010068] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To combat infections on biomedical devices, antimicrobial coatings have attracted considerable attention, including coatings comprising naturally occurring antimicrobial peptides (AMPs). In this study the aim was to explore performance upon extended challenge by bacteria growing in media above samples. The AMPs LL37, Magainin 2, and Parasin 1 were selected on the basis of well-known membrane disruption activity in solution and were covalently grafted onto a plasma polymer platform, which enables application of this multilayer coating strategy to a wide range of biomaterials. Detailed surface analyses were performed to verify the intended outcomes of the coating sequence. Samples were challenged by incubation in bacterial growth media for 5 and 20 h. Compared with the control plasma polymer surface, all three grafted AMP coatings showed considerable reductions in bacterial colonization even at the high bacterial challenge of initial seeding at 1 × 107 CFU, but there were increasing numbers of dead bacteria attached to the surface. All three grafted AMP coatings were found to be non-toxic to primary fibroblasts. These coatings thus could be useful to produce antibacterial surface coatings for biomaterials, though possible consequences arising from the presence of dead bacteria need to be studied further, and compared to non-fouling coatings that avoid attachment of dead bacteria.
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Functional nanothin films plasma-deposited from 2-isopropenyl-2-oxazoline for biosensor applications. Biointerphases 2020; 15:051005. [PMID: 32972145 DOI: 10.1116/6.0000499] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Plasma polymers derived from oxazoline precursors present a range of versatile properties that is fueling their use as biomaterials. However, coatings deposited from commonly used methyl and ethyl oxazoline precursors can be sensitive to the plasma deposition conditions. In this work, we used various spectroscopic methods (ellipsometry, x-ray photoelectron spectroscopy, and time of flight secondary ion mass spectrometry) and cell viability assays to evaluate the transferability of deposition conditions from the original plasma reactor developed by Griesser to a new wider, reactor designed for upscaled biosensors applications. The physicochemical properties, reactivity, and biocompatibility of films deposited from 2-isopropenyl-2-oxazoline were investigated. Thanks to the availability of an unsaturated pendant group, the coatings obtained from this oxazoline precursor are more stable and reproducible over a range of deposition conditions while retaining reactivity toward ligands and biomolecules. This study identified films deposited at 20 W and 0.012 mbar working pressure as being the best suited for biosensor applications.
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4
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To be a radical or not to be one? The fate of the stable nitroxide radical TEMPO [(2,2,6,6-Tetramethylpiperidin-1-yl)oxyl] undergoing plasma polymerization into thin-film coatings. Biointerphases 2020; 15:031015. [PMID: 32590900 DOI: 10.1116/6.0000259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The stable nitroxide radical TEMPO [(2,2,6,6-Tetramethylpiperidin-1-yl)oxyl] has a multitude of applications in fields ranging from energy storage to biomedical applications and many more. However, to date, the processes of incorporating nitroxide radicals into thin-film coatings are laborious and not cost-effective, which hinders their wider use in many applications. In contrast, the authors have recently demonstrated the facile method of plasma polymerization of TEMPO into thin-film coatings that retain the stable nitroxide radicals. In this work, we are using three types of mass spectroscopic methods (plasma-mass spectrometry, time of flight secondary ion mass spectrometry, and high-performance liquid chromatography-mass spectrometry) and electron spin resonance to track the fate of the TEMPO molecule from monomer flask through the plasma and inside the resulting coatings. The results of this study demonstrate that TEMPO is a versatile monomer that can be used across different plasma reactors and reliably retain the stable nitroxide radical in the resulting thin-film coatings if certain process conditions are observed, namely, higher process pressures and lower powers.
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The Impact of Engineered Silver Nanomaterials on the Immune System. NANOMATERIALS 2020; 10:nano10050967. [PMID: 32443602 PMCID: PMC7712063 DOI: 10.3390/nano10050967] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/04/2020] [Accepted: 05/05/2020] [Indexed: 01/07/2023]
Abstract
Over the last decades there has been a tremendous volume of research efforts focused on engineering silver-based (nano)materials. The interest in silver has been mostly driven by the element capacity to kill pathogenic bacteria. In this context, the main area of application has been medical devices that are at significant risk of becoming colonized by bacteria and subsequently infected. However, silver nanomaterials have been incorporated in a number of other commercial products which may or may not benefit from antibacterial protection. The rapid expansion of such products raises important questions about a possible adverse influence on human health. This review focuses on examining currently available literature and summarizing the current state of knowledge of the impact of silver (nano)materials on the immune system. The review also looks at various surface modification strategies used to generate silver-based nanomaterials and the immunomodulatory potential of these materials. It also highlights the immune response triggered by various silver-coated implantable devices and provides guidance and perspective towards engineering silver nanomaterials for modulating immunological consequences.
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Bachhuka A, Madathiparambil Visalakshan R, Law CS, Santos A, Ebendorff-Heidepriem H, Karnati S, Vasilev K. Modulation of Macrophages Differentiation by Nanoscale-Engineered Geometric and Chemical Features. ACS APPLIED BIO MATERIALS 2020; 3:1496-1505. [DOI: 10.1021/acsabm.9b01125] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Bachhuka
- ARC Center of Excellence for Nanoscale BioPhotonics (CNBP), The University of Adelaide, Adelaide, South Australia 5005, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - R. Madathiparambil Visalakshan
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, South Australia 5095, Australia
| | - C. S. Law
- ARC Center of Excellence for Nanoscale BioPhotonics (CNBP), The University of Adelaide, Adelaide, South Australia 5005, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, Adelaide, South Australia 5005, Australia
- School of Chemical Engineering, University of Adelaide, Engineering North Building, Adelaide, South Australia 5005, Australia
| | - A. Santos
- ARC Center of Excellence for Nanoscale BioPhotonics (CNBP), The University of Adelaide, Adelaide, South Australia 5005, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, Adelaide, South Australia 5005, Australia
- School of Chemical Engineering, University of Adelaide, Engineering North Building, Adelaide, South Australia 5005, Australia
| | - H. Ebendorff-Heidepriem
- ARC Center of Excellence for Nanoscale BioPhotonics (CNBP), The University of Adelaide, Adelaide, South Australia 5005, Australia
- Institute for Photonics and Advanced Sensing (IPAS), The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - S. Karnati
- Institute for Anatomy and Cell Biology, Julius Maximilians University, Koellikerstrasse 6, Wuerzburg 97070, Germany
| | - K. Vasilev
- Future Industries Institute, University of South Australia, Mawson Lakes Campus, Adelaide, South Australia 5095, Australia
- School of Engineering, University of South Australia, Mawson Lakes Campus, Adelaide, South Australia 5095, Australia
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Zuber A, Bachhuka A, Tassios S, Tiddy C, Vasilev K, Ebendorff-Heidepriem H. Field Deployable Method for Gold Detection Using Gold Pre-Concentration on Functionalized Surfaces. SENSORS (BASEL, SWITZERLAND) 2020; 20:E492. [PMID: 31952298 PMCID: PMC7014198 DOI: 10.3390/s20020492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/10/2020] [Accepted: 01/12/2020] [Indexed: 11/17/2022]
Abstract
Keywords: surface chemistry, plasma polymerization, salinization, gold sensing.
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Affiliation(s)
- Agnieszka Zuber
- Institute for Photonics and Advanced Sensing, School of Physical Sciences, The University of Adelaide, Adelaide 5005, Australia;
- Deep Exploration Technologies Cooperative Research Centre, School of Physical Sciences, The University of Adelaide, Adelaide 5005, Australia; (S.T.); (C.T.)
| | - Akash Bachhuka
- Institute for Photonics and Advanced Sensing, School of Physical Sciences, The University of Adelaide, Adelaide 5005, Australia;
- Deep Exploration Technologies Cooperative Research Centre, School of Physical Sciences, The University of Adelaide, Adelaide 5005, Australia; (S.T.); (C.T.)
- ARC Center of Excellence for Nanoscale BioPhotonics, The University of Adelaide, Adelaide 5005, Australia
| | - Steven Tassios
- Deep Exploration Technologies Cooperative Research Centre, School of Physical Sciences, The University of Adelaide, Adelaide 5005, Australia; (S.T.); (C.T.)
- CSIRO, Process Science and Engineering, Gate 1, Normanby Road, Clayton 3169, Australia
| | - Caroline Tiddy
- Deep Exploration Technologies Cooperative Research Centre, School of Physical Sciences, The University of Adelaide, Adelaide 5005, Australia; (S.T.); (C.T.)
- Future Industries Institute, University of South Australia, Mawson Lakes 5095, Australia;
| | - Krasimir Vasilev
- Future Industries Institute, University of South Australia, Mawson Lakes 5095, Australia;
- School of Engineering, University of South Australia, Mawson Lakes 5095, Australia
| | - Heike Ebendorff-Heidepriem
- Institute for Photonics and Advanced Sensing, School of Physical Sciences, The University of Adelaide, Adelaide 5005, Australia;
- Deep Exploration Technologies Cooperative Research Centre, School of Physical Sciences, The University of Adelaide, Adelaide 5005, Australia; (S.T.); (C.T.)
- ARC Center of Excellence for Nanoscale BioPhotonics, The University of Adelaide, Adelaide 5005, Australia
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Abstract
This feature article begins by outlining the problem of infection and its implication on healthcare. The initial introductory section is followed by a description of the four distinct classes of antibacterial coatings and materials, i.e., bacteria repealing, contact killing, releasing and responsive, that were developed over the years by our team and others. Specific examples of each individual class of antibacterial materials and a discussion on the pros and cons of each strategy are provided. The article contains a dedicated section focused on silver nanoparticle based coatings and materials, which have attracted tremendous interest from the scientific and medical communities. The article concludes with the author’s view regarding the future of the field.
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Plasma deposited poly-oxazoline nanotextured surfaces dictate osteoimmunomodulation towards ameliorative osteogenesis. Acta Biomater 2019; 96:568-581. [PMID: 31271882 DOI: 10.1016/j.actbio.2019.06.058] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/26/2019] [Accepted: 06/27/2019] [Indexed: 12/11/2022]
Abstract
Developing "osteoimmune-smart" bone substitute materials have become the forefront of research in bone regeneration. Biocompatible polymer coatings are applied widely to improve the bioactivity of bone substitute materials. In this context, polyoxazolines (Pox) have attracted substantial attention recently due to properties such as biocompatibility, stability, and low biofouling. In view of these useful properties, it is interesting to explore the capacity of Pox as an osteoimmunomodulatory agent to generate a favorable osteoimmune environment for osteogenesis. We applied a technique called plasma polymerization and succeeded in preparing Pox-like coatings (Ppox) and engineered their nanotopography at the nanoscale. We found that Ppox switched macrophages towards M2 extreme, thus inhibiting the release of inflammatory cytokines. The underlying mechanism may be related to the suppression of TLR pathway. The generated osteoimmune environment improved osteogenesis while inhibited osteoclastogenesis. This may be related to the release of osteogenic factors, especially Wnt10b from macrophages. The addition of nanotopography (16 nm, 38 nm, 68 nm) can tune the Ppox-mediated inhibition on inflammation and osteoclastic activities, while no significant effects were observed within the tested nano sizes on the Ppox-mediated osteogenesis. These results collectively suggest that Ppox can be useful as an effective osteoiumunomodulatory agent to endow bone substitute materials with favourable osteoimmunomodulatory property. STATEMENT OF SIGNIFICANCE: In this study, we succeeded in preparing plasma deposited Pox-like nano-coatings (Ppox) via plasma polymerization and found that Ppox nanotopographies are useful osteoimmunomodulatory tools. Their osteoimmunodolatory effects and underlying mechanisms are unveiled. It is the first investigation into the feasibility of applying poly-oxazoline as an osteoimmunomodulatory agent. This expand the application of poly-oxazoline into the forefront in bone regeneration area for the development of advanced "osteoimmune-smart" bone substitute materials.
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Visalakshan RM, MacGregor MN, Sasidharan S, Ghazaryan A, Mierczynska-Vasilev AM, Morsbach S, Mailänder V, Landfester K, Hayball JD, Vasilev K. Biomaterial Surface Hydrophobicity-Mediated Serum Protein Adsorption and Immune Responses. ACS APPLIED MATERIALS & INTERFACES 2019; 11:27615-27623. [PMID: 31310498 DOI: 10.1021/acsami.9b09900] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The nature of the protein corona forming on biomaterial surfaces can affect the performance of implanted devices. This study investigated the role of surface chemistry and wettability on human serum-derived protein corona formation on biomaterial surfaces and the subsequent effects on the cellular innate immune response. Plasma polymerization, a substrate-independent technique, was employed to create nanothin coatings with four specific chemical functionalities and a spectrum of surface charges and wettability. The amount and type of protein adsorbed was strongly influenced by surface chemistry and wettability but did not show any dependence on surface charge. An enhanced adsorption of the dysopsonin albumin was observed on hydrophilic carboxyl surfaces while high opsonin IgG2 adsorption was seen on hydrophobic hydrocarbon surfaces. This in turn led to a distinct immune response from macrophages; hydrophilic surfaces drove greater expression of anti-inflammatory cytokines by macrophages, whilst surface hydrophobicity caused increased production of proinflammatory signaling molecules. These findings map out a unique relationship between surface chemistry, hydrophobicity, protein corona formation, and subsequent cellular innate immune responses; the potential outcomes of these studies may be employed to tailor biomaterial surface modifications, to modulate serum protein adsorption and to achieve the desirable innate immune response to implanted biomaterials and devices.
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Affiliation(s)
| | | | - Salini Sasidharan
- Department of Environmental Sciences , University of California Riverside , Riverside , California 92521 , United States
| | - Artur Ghazaryan
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | | | - Svenja Morsbach
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - Volker Mailänder
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
- Department of Dermatology , University Medical Center of the Johannes Gutenberg-University Mainz , Langenbeckstr. 1 , 55131 Mainz , Germany
| | - Katharina Landfester
- Max Planck Institute for Polymer Research , Ackermannweg 10 , 55128 Mainz , Germany
| | - John D Hayball
- School of Pharmacy & Medical Sciences , University of South Australia , Adelaide , South Australia 5001 , Australia
- Experimental Therapeutics Laboratory , University of South Australia Cancer Research Institute , Adelaide , South Australia 5000 , Australia
- Robinson Research Institute and Adelaide Medical School , University of Adelaide , Adelaide , South Australia 5005 , Australia
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Macgregor M, Vasilev K. Perspective on Plasma Polymers for Applied Biomaterials Nanoengineering and the Recent Rise of Oxazolines. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E191. [PMID: 30626075 PMCID: PMC6337614 DOI: 10.3390/ma12010191] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/21/2018] [Accepted: 01/02/2019] [Indexed: 11/16/2022]
Abstract
Plasma polymers are unconventional organic thin films which only partially share the properties traditionally attributed to polymeric materials. For instance, they do not consist of repeating monomer units but rather present a highly crosslinked structure resembling the chemistry of the precursor used for deposition. Due to the complex nature of the deposition process, plasma polymers have historically been produced with little control over the chemistry of the plasma phase which is still poorly understood. Yet, plasma polymer research is thriving, in par with the commercialisation of innumerable products using this technology, in fields ranging from biomedical to green energy industries. Here, we briefly summarise the principles at the basis of plasma deposition and highlight recent progress made in understanding the unique chemistry and reactivity of these films. We then demonstrate how carefully designed plasma polymer films can serve the purpose of fundamental research and biomedical applications. We finish the review with a focus on a relatively new class of plasma polymers which are derived from oxazoline-based precursors. This type of coating has attracted significant attention recently due to its unique properties.
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Affiliation(s)
- Melanie Macgregor
- School of Engineering, University of South Australia, Adelaide, SA 5000, Australia.
- Future Industries Institute, University of South Australia, Adelaide, SA 5000, Australia.
| | - Krasimir Vasilev
- School of Engineering, University of South Australia, Adelaide, SA 5000, Australia.
- Future Industries Institute, University of South Australia, Adelaide, SA 5000, Australia.
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Hammer BAG, Müllen K. Expanding the limits of synthetic macromolecular chemistry through Polyphenylene Dendrimers. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2018; 20:262. [PMID: 30363718 PMCID: PMC6182379 DOI: 10.1007/s11051-018-4364-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 08/17/2018] [Indexed: 06/08/2023]
Abstract
Polyphenylene dendrimers (PPDs) are a unique class of macromolecules because their backbone is made from twisted benzene repeat units that result in a rigid, shape-persistent architecture as reported by Hammer et al. (Chem Soc Rev 44:4072-4090, 2015) and Hammer and Müllen (Chem Rev 116:2103-210, 2016) These dendrimers can be synthetically tailored at their core, scaffold, and surface to introduce a wide range of chemical functionalities that influence their applications. It is the balance between the macromolecular properties of polyphenylene dendrimers with grandiose synthetic ingenuity that presents a template for the next generation of synthetic dendrimers to achieve complex structures other chemistry fields cannot. This perspective will look at how advances in synthetic chemistry have led to an explosion in the properties of polyphenylene dendrimers from their initial stage, as PPDs that were used as precursors for nanographenes, to next-generation dendrimers for organic electronic devices, sensors for volatile organic compounds (VOCs), nanocarriers for small molecules, and even as complexes with therapeutic drugs and viruses, among others. Ideally, this perspective will illustrate how the evolution of synthetic chemistry has influenced the possible structures and properties of PPDs and how these chemical modifications have opened the door to unprecedented applications.
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Affiliation(s)
- Brenton A. G. Hammer
- Department of Chemistry and Biochemistry, California State University Northridge, 18111 Nordhoff St. 91330, Northridge, CA USA
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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13
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Wahono SK, Cavallaro A, Vasilev K, Mierczynska A. Plasma polymer facilitated magnetic technology for removal of oils from contaminated waters. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 240:725-732. [PMID: 29778058 DOI: 10.1016/j.envpol.2018.05.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 05/07/2018] [Accepted: 05/07/2018] [Indexed: 06/08/2023]
Abstract
Oil pollution of waters is one of the most serious environmental problems globally. The long half-life and persistence within the environment makes oil particularly toxic and difficult to remediate. There is a significant need for efficient and cost-effective oil recovery technologies to be brought in to practice. In this study, we developed a facile and efficient magnetic separation method. The surface of 316L stainless steel nanoparticles was modified by plasma deposition of 1,7-octadiene and perfluorooctane, producing relatively hydrophobic coatings having water contact angles of 86 and 100°, respectively. Both coatings had high oil removal efficiency (ORE) of >99%. The captured oil could be easily separated by applying an external magnetic force. The ease of material preparation and separation from the water after the oil is captured, and its high ORE is a compelling argument for further development and optimization of the technology to possible utilization into practice. Furthermore, the capacity of plasma polymerization to deliver desired surface properties can extend the application of the technology to removing other chemical and biological contaminants from polluted waters.
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Affiliation(s)
- Satriyo Krido Wahono
- Future Industries Institute, University of South Australia, Mawson Lakes 5095, South Australia, Australia; School of Engineering, University of South Australia, Mawson Lakes 5095, South Australia, Australia; Research Unit for Natural Product Technology, Indonesian Institutes of Sciences, Gunungkidul 55861, Yogyakarta, Indonesia
| | - Alex Cavallaro
- Future Industries Institute, University of South Australia, Mawson Lakes 5095, South Australia, Australia
| | - Krasimir Vasilev
- Future Industries Institute, University of South Australia, Mawson Lakes 5095, South Australia, Australia; School of Engineering, University of South Australia, Mawson Lakes 5095, South Australia, Australia.
| | - Agnieszka Mierczynska
- The Australian Wine Research Institute, Glen Osmond 5064, South Australia, Australia
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14
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Roy Chowdhury N, Hopp I, Zilm P, Murray P, Vasilev K. Silver nanoparticle modified surfaces induce differentiation of mouse kidney-derived stem cells. RSC Adv 2018; 8:20334-20340. [PMID: 35541676 PMCID: PMC9080803 DOI: 10.1039/c8ra02145g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Accepted: 05/29/2018] [Indexed: 12/25/2022] Open
Abstract
In this paper, we interrogate the influence of silver nanoparticle (AgNPs)-based model surfaces on mouse kidney-derived stem cells (mKSCs) differentiation. The widespread use of silver in biomedical and consumer products requires understanding of this element's effect on kidney cells. Moreover, the potential for using stem cells in drug discovery require methods to direct their differentiation to specialized cells. Hence, we generated coated model substrates containing different concentrations of surface immobilized AgNPs, and used them to evaluate properties and functions of mKSCs. Initially, mKSCs exhibited reduced viability on higher silver containing surfaces. However, longer culture periods assisted mKSCs to recover. Greater degree of cell spreading and arborization led by AgNPs, suggest podocyte differentiation. Proximal tubule cell marker's expression revealed differentiation to the specific lineage. Although the exact mechanism underpinning these findings require significant future efforts, this study demonstrate silver's capacity to stimulate mKSC differentiation, which may provide opportunities for drug screenings. 2-Methyl-2-oxazoline plasma polymerized silver nanoparticles containing coatings are not toxic towards mouse kidney derived stem cells (mKSCs) and regulate mKSCs differentiation.![]()
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Affiliation(s)
| | - Isabel Hopp
- Institute of Translational Medicine
- University of Liverpool
- Liverpool
- UK
| | - Peter Zilm
- Microbiology Laboratory
- Adelaide Dental School
- The University of Adelaide
- Adelaide
- Australia
| | - Patricia Murray
- Institute of Translational Medicine
- University of Liverpool
- Liverpool
- UK
| | - Krasimir Vasilev
- School of Engineering
- University of South Australia
- Mawson Lakes
- Australia
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Chen Z, Bachhuka A, Wei F, Wang X, Liu G, Vasilev K, Xiao Y. Nanotopography-based strategy for the precise manipulation of osteoimmunomodulation in bone regeneration. NANOSCALE 2017; 9:18129-18152. [PMID: 29143002 DOI: 10.1039/c7nr05913b] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Immune cells play vital roles in regulating bone dynamics. Successful bone regeneration requires a favourable osteo-immune environment. The high plasticity and diversity of immune cells make it possible to manipulate the osteo-immune response of immune cells, thus modulating the osteoimmune environment and regulating bone regeneration. With the advancement in nanotechnology, nanotopographies with different controlled surface properties can be fabricated. On tuning the surface properties, the osteo-immune response can be precisely modulated. This highly tunable characteristic and immunomodulatory effects make nanotopography a promising strategy to precisely manipulate osteoimmunomdulation for bone tissue engineering applications. This review first summarises the effects of the immune response during bone healing to show the importance of regulating the immune response for the bone response. The plasticity of immune cells is then reviewed to provide rationales for manipulation of the osteoimmune response. Subsequently, we highlight the current types of nanotopographies applied in bone biomaterials and their fabrication techniques, and explain how these nanotopographies modulate the immune response and the possible underlying mechanisms. The effects of immune cells on nanotopography-mediated osteogenesis are emphasized, and we propose the concept of "nano-osteoimmunomodulation" to provide a valuable strategy for the development of nanotopographies with osteoimmunomodulatory properties that can precisely regulate bone dynamics.
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Affiliation(s)
- Zetao Chen
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, Guangdong, People's Republic of China
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16
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Macgregor M, Williams R, Downes J, Bachhuka A, Vasilev K. The Role of Controlled Surface Topography and Chemistry on Mouse Embryonic Stem Cell Attachment, Growth and Self-Renewal. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E1081. [PMID: 28906470 PMCID: PMC5615735 DOI: 10.3390/ma10091081] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 09/12/2017] [Accepted: 09/12/2017] [Indexed: 12/17/2022]
Abstract
The success of stem cell therapies relies heavily on our ability to control their fate in vitro during expansion to ensure an appropriate supply. The biophysical properties of the cell culture environment have been recognised as a potent stimuli influencing cellular behaviour. In this work we used advanced plasma-based techniques to generate model culture substrates with controlled nanotopographical features of 16 nm, 38 nm and 68 nm in magnitude, and three differently tailored surface chemical functionalities. The effect of these two surface properties on the adhesion, spreading, and self-renewal of mouse embryonic stem cells (mESCs) were assessed. The results demonstrated that physical and chemical cues influenced the behaviour of these stem cells in in vitro culture in different ways. The size of the nanotopographical features impacted on the cell adhesion, spreading and proliferation, while the chemistry influenced the cell self-renewal and differentiation.
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Affiliation(s)
- Melanie Macgregor
- School of Engineering, Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia.
| | - Rachel Williams
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool L7 8TX, UK.
| | - Joni Downes
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool L7 8TX, UK.
| | - Akash Bachhuka
- Institute for Photonics and Advanced Sensing, University of Adelaide, Adelaide, SA 5000, Australia.
| | - Krasimir Vasilev
- School of Engineering, Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia.
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Caminade AM, Majoral JP. Positively charged phosphorus dendrimers. An overview of their properties. NEW J CHEM 2013. [DOI: 10.1039/c3nj00583f] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Steinhauer W, Keul H, Möller M. Synthesis of reversible and irreversible cross-linked (M)PEG-(meth)acrylate based functional copolymers. Polym Chem 2011. [DOI: 10.1039/c1py00087j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Kim JY, Lee JS. Synthesis and thermally reversible assembly of DNA-gold nanoparticle cluster conjugates. NANO LETTERS 2009; 9:4564-4569. [PMID: 19928782 DOI: 10.1021/nl9030709] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We describe the facile synthesis of stable gold nanoparticle clusters densely functionalized with DNA (DNA-AuNP clusters) using dithiothreitol and monothiol DNA and their thermally reversible assembly properties. The size of the clusters exhibits a very narrow distribution and can be easily controlled by adjusting the stoichiometry of dithiothreitol and DNA, leading to a variety of colors due to the surface plasmon resonance of the AuNP clusters. Importantly, the DNA-AuNP clusters exhibit highly cooperative melting properties with distinctive and diverse color changes depending on their size. The selective and sensitive colorimetric detection of target sequences was demonstrated based upon the unique properties of the DNA-AuNP clusters.
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Affiliation(s)
- Ji-Young Kim
- Department of Materials Science and Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul 136-713, Republic of Korea
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Bauer R, Liu D, Ver Heyen A, De Schryver F, De Feyter S, Müllen K. Polyphenylene Dendrimers with Pentafluorophenyl Units: Synthesis and Self-Assembly. Macromolecules 2007. [DOI: 10.1021/ma0625511] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roland Bauer
- Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany, and Laboratory of Photochemistry and Spectroscopy, Department of Chemistry, and INPAC - Institute for Nanoscale Physics and Chemistry, Celestijnenlaan 200 F, 3001 Heverlee, Belgium
| | - Di Liu
- Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany, and Laboratory of Photochemistry and Spectroscopy, Department of Chemistry, and INPAC - Institute for Nanoscale Physics and Chemistry, Celestijnenlaan 200 F, 3001 Heverlee, Belgium
| | - An Ver Heyen
- Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany, and Laboratory of Photochemistry and Spectroscopy, Department of Chemistry, and INPAC - Institute for Nanoscale Physics and Chemistry, Celestijnenlaan 200 F, 3001 Heverlee, Belgium
| | - Frans De Schryver
- Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany, and Laboratory of Photochemistry and Spectroscopy, Department of Chemistry, and INPAC - Institute for Nanoscale Physics and Chemistry, Celestijnenlaan 200 F, 3001 Heverlee, Belgium
| | - Steven De Feyter
- Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany, and Laboratory of Photochemistry and Spectroscopy, Department of Chemistry, and INPAC - Institute for Nanoscale Physics and Chemistry, Celestijnenlaan 200 F, 3001 Heverlee, Belgium
| | - Klaus Müllen
- Max-Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany, and Laboratory of Photochemistry and Spectroscopy, Department of Chemistry, and INPAC - Institute for Nanoscale Physics and Chemistry, Celestijnenlaan 200 F, 3001 Heverlee, Belgium
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David K, Tadd EH, Tannenbaum R, Tikku S, Dan N. Effect of polymer architecture on metal nanoclusters. POLYMER 2006. [DOI: 10.1016/j.polymer.2006.09.068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kim BS, Lebedeva OV, Koynov K, Gong H, Caminade AM, Majoral JP, Vinogradova OI. Effect of Dendrimer Generation on the Assembly and Mechanical Properties of DNA/Phosphorus Dendrimer Multilayer Microcapsules. Macromolecules 2006. [DOI: 10.1021/ma060698m] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Byoung-Suhk Kim
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany, Laboratoire de Chimie de Coordination CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119991 Moscow, Russia
| | - Olga V. Lebedeva
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany, Laboratoire de Chimie de Coordination CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119991 Moscow, Russia
| | - Kaloian Koynov
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany, Laboratoire de Chimie de Coordination CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119991 Moscow, Russia
| | - Haofei Gong
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany, Laboratoire de Chimie de Coordination CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119991 Moscow, Russia
| | - Anne-Marie Caminade
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany, Laboratoire de Chimie de Coordination CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119991 Moscow, Russia
| | - Jean-Pierre Majoral
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany, Laboratoire de Chimie de Coordination CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119991 Moscow, Russia
| | - Olga I. Vinogradova
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany, Laboratoire de Chimie de Coordination CNRS, 205 route de Narbonne, 31077 Toulouse Cedex 04, France, and A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31, 119991 Moscow, Russia
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Maraval V, Maraval A, Spataro G, Caminade AM, Majoral JP, Kim DH, Knoll W. Design of tailored multi-charged phosphorus surface-block dendrimers. NEW J CHEM 2006. [DOI: 10.1039/b610632n] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Fishman A, Acton A, Lee‐Ruff E. Efficient Preparation of Hybrid Linear‐Branched Esters of PEG‐PEE Derivatives. SYNTHETIC COMMUN 2006. [DOI: 10.1080/00397910500377289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Abstract
The development of nanotechnology using organic materials is one of the most intellectually and commercially exciting stories of our times. Advances in synthetic chemistry and in methods for the investigation and manipulation of individual molecules and small ensembles of molecules have produced major advances in the field of organic nanomaterials. The new insights into the optical and electronic properties of molecules obtained by means of single-molecule spectroscopy and scanning probe microscopy have spurred chemists to conceive and make novel molecular and supramolecular designs. Methods have also been sought to exploit the properties of these materials in optoelectronic devices, and prototypes and models for new nanoscale devices have been demonstrated. This Review aims to show how the interaction between synthetic chemistry and spectroscopy has driven the field of organic nanomaterials forward towards the ultimate goal of new technology.
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Affiliation(s)
- Andrew C Grimsdale
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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Kim BS, Lebedeva OV, Kim DH, Caminade AM, Majoral JP, Knoll W, Vinogradova OI. Assembly and mechanical properties of phosphorus dendrimer/polyelectrolyte multilayer microcapsules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2005; 21:7200-6. [PMID: 16042442 DOI: 10.1021/la0504208] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We report the preparation, characterization, and mechanical properties of polyelectrolyte/phosphorus dendrimer multilayer microcapsules. The shells of these microcapsules are composed either by alternating poly(styrenesulfonate) (PSS) and positively charged dendrimer G4(NH+Et2Cl-)96 or by alternating poly(allylamine hydrochloride) (PAH) and negatively charged dendrimer G4(CH-COO-Na+)96. The same multilayers were constructed on planar support to examine their layer-by-layer growth and to measure the multilayer thickness. Surface plasmon resonance spectroscopy (SPR) showed regular linear growth of the assembly upon each bilayer deposited. We probe the mechanical properties of these polyelectrolyte/dendrimer microcapsules by measuring force-deformation curves with the atomic force microscope (AFM). The experiment suggests that they are much softer than PSS/PAH microcapsules studied before. This softening is attributed to an enhanced permeability of the polyelectrolyte/dendrimer multilayer shells as compared with multilayers formed by linear polyelectrolytes. In contrast, Young's modulus of both dendrimer-based multilayers was found to be on the same order as that of PSS/PAH multilayers.
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Affiliation(s)
- Byoung-Suhk Kim
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
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Kim DH, Hernandez-Lopez JL, Liu J, Mihov G, Zhi L, Bauer RE, Grebel-Köhler D, Klapper M, Weil T, Müllen K, Mittler S, Knoll W. Multilayer Films Fabricated from Oppositely Charged Polyphenylene Dendrimers by Electrostatic Layer-by-Layer Assembly. MACROMOL CHEM PHYS 2005. [DOI: 10.1002/macp.200400193] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Qi K, Ma Q, Remsen EE, Clark CG, Wooley KL. Determination of the Bioavailability of Biotin Conjugated onto Shell Cross-Linked (SCK) Nanoparticles. J Am Chem Soc 2004; 126:6599-607. [PMID: 15161288 DOI: 10.1021/ja039647k] [Citation(s) in RCA: 130] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Shell cross-linked nanoparticles (SCKs) presenting surface- and bioavailable biotin functional groups were synthesized via a mixed micelle methodology, whereby co-micellization of chain terminal biotinylated poly(acrylic acid)-b-poly(methyl acrylate) (PAA-b-PMA) and nonbiotinylated PAA-b-PMA were cross-linked in an intramicellar fashion within the shell layer of the mixed micelles, between the carboxylic acid groups of PAA and the amine functionalities of 2,2'-(ethylenedioxy)diethylamine. The hydrodynamic diameters (D(h)) of the micelles and the SCKs with different biotinylated block copolymer contents were determined by dynamic light scattering (DLS), and the dimensions of the SCKs were characterized with tapping-mode atomic force microscopy (AFM) and transmission electron microscopy (TEM). The amount of surface-available biotin was tuned by varying the stoichiometric ratio of the biotinylated PAA-b-PMA versus the nonbiotinylated PAA-b-PMA, as demonstrated with solution-state, binding interaction analyses, an avidin/HABA (avidin/4'-hydroxyazobenzene-2-carboxylic acid) competitive binding assay, and fluorescence correlation spectroscopy (FCS). The avidin/HABA assay found the amount of available biotin at the surface of the biotinylated SCK nanoparticles to increase with increasing biotin-terminated block copolymer incorporation, but to be less than 25% of the theoretical value. FCS measurements showed the same trend.
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Affiliation(s)
- Kai Qi
- Department of Chemistry, Washington University, One Brookings Drive, Saint Louis, Missouri 63130-4899, USA
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31
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Abstract
Dendrimers constitute an increasingly important field of research in chemistry for more than 15 years. After pioneering works concerning synthesis, the interest in dendrimers is now mainly driven by their properties and applications. This Account will emphasize the properties of a special class of dendrimers, that is, phosphorus-containing dendritic macromolecules, as tools for the elaboration of nanomaterials. Indeed, these dendrimers can be considered themselves as materials, or they can be used as an intrinsic constituent of a material or as a modifier of the surface of a material. In this latter case, a fundamental work about surfaces covalently modified by dendrimers recently opened the way to the elaboration of DNA chips.
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Affiliation(s)
- Anne-Marie Caminade
- Laboratoire de Chimie de Coordination CNRS, 205 route de Narbonne, 31077 Toulouse cedex 4, France.
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Fishman A, Farrah ME, Zhong JH, Paramanantham S, Carrera C, Lee-Ruff E. Synthesis and Investigation of Novel Branched PEG-Based Soluble Polymer Supports. J Org Chem 2003; 68:9843-6. [PMID: 14656121 DOI: 10.1021/jo034868u] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The efficient synthesis of a number of novel poly(ethylene glycol)-based branched soluble polymer supports with high loading capacities has been developed. These compounds are characterized and tested for their loading levels utilizing a number of coupling reactions.
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Affiliation(s)
- Alexander Fishman
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada.
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