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Mann J, Garnweitner G, Schilde C. Preparation of Self-Assembled Nanoparticle-Polymer Hybrids from Modified Silica Nanoparticles and Polystyrene-Block-Polyacrylic Acid Vesicles via the Co-Precipitation Method. Polymers (Basel) 2023; 15:polym15020444. [PMID: 36679323 PMCID: PMC9867192 DOI: 10.3390/polym15020444] [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: 11/08/2022] [Revised: 01/01/2023] [Accepted: 01/04/2023] [Indexed: 01/18/2023] Open
Abstract
Nanoparticle-polymer hybrids are becoming increasingly important because seemingly contrasting properties, such as mechanical stability and high elasticity, can be combined into one material. In particular, hybrids made of self-assembled polymers are of growing interest since they exhibit high structural precision and diversity and the subsequent reorganization of the nanoparticles is possible. In this work, we show, for the first time, how hybrids of silica nanoparticles and self-assembled vesicles of polystyrene-block-polyacrylic acid can be prepared using the simple and inexpensive method of co-precipitation, highlighting in particular the challenges of using silica instead of other previously well-researched materials, such as gold. The aim was to investigate the influence of the type of modification and the particle size of the silica nanoparticles on the encapsulation and structure of the polymer vesicles. For this purpose, we first needed to adjust the surface properties of the nanoparticles, which we achieved with a two-step modification procedure using APTES and carboxylic acids of different chain lengths. We found that silica nanoparticles modified only with APTES could be successfully encapsulated, while those modified with APTES and decanoic acid resulted in vesicle agglomeration and poor encapsulation due to their strong hydrophobicity. In contrast, no negative effects were observed when different particle sizes (20 nm and 45 nm) were examined.
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Affiliation(s)
- Jil Mann
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany
- Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, Langer Kamp 6A, 38106 Braunschweig, Germany
- Correspondence:
| | - Georg Garnweitner
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany
- Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, Langer Kamp 6A, 38106 Braunschweig, Germany
| | - Carsten Schilde
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany
- Laboratory for Emerging Nanometrology, Technische Universität Braunschweig, Langer Kamp 6A, 38106 Braunschweig, Germany
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2
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Chen N, Wang Y, Song X, Li Y, Deng Z. Steering DNA Condensation on Engineered Nanointerfaces. NANO LETTERS 2022; 22:8550-8558. [PMID: 36315179 DOI: 10.1021/acs.nanolett.2c03051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
DNA has received increasing attention in nanotechnology due to its ability to fold into prescribed structures. Different from the commonly adopted base-pairing strategy, an emerging class of amorphous DNA materials are formed by DNA's abiological interactions. Despite the great successes, a lack of nanoscale nucleation/growth control disables more advanced considerations. This work aims at harnessing the heterogeneous nucleation of metal-ion-glued DNA condensates on nanointerfaces. Upon unveiling key orthogonal factors including solution pH, ionic cross-linkers, and surface functionalities, chemically programmable DNA condensation on nanoparticle seeds is achieved, resembling a famous Stöber process for silica coating. The nucleation rules discovered on individual nanoseeds can be passed on to their dimeric assemblies, where broken spherical symmetry and the existence of interparticle gaps help a regiospecific DNA gelation. The steerable DNA condensation, and the multifunctions from DNA, metal ions, and nanocores, hold a great promise in noncanonical DNA nanotechnology toward novel applications.
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Affiliation(s)
- Nuo Chen
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yueliang Wang
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaojun Song
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yanjuan Li
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhaoxiang Deng
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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3
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Ho Lee K, Ireland M, Miller BL, Wyslouzil BE, Winter JO. Synthesis of polymer nanoparticles via electrohydrodynamic emulsification-mediated self-assembly. J Colloid Interface Sci 2021; 586:445-456. [PMID: 33162039 DOI: 10.1016/j.jcis.2020.10.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/05/2020] [Accepted: 10/25/2020] [Indexed: 11/24/2022]
Abstract
HYPOTHESIS Electrospray can rapidly produce fine, organic solvent-in-water emulsions in the absence of surfactant via electrohydrodynamic emulsification (EE), a reverse configuration of traditional electrospray. This paper investigates whether EE can produce high-quality nanocomposites comprised of block co-polymers and organic nanoparticles (NPs) via the interfacial instability (IS) self-assembly method. Surfactant-free approaches may increase encapsulation efficiency and product uniformity, process speed, and ease of downstream product purification. EXPERIMENTS All particles were produced using EE-mediated self-assembly (SA) (EE-SA). Particles were produced using poly(lactic-co-glycolic acid) (PLGA) polymers as proof of concept. Then, block copolymer (BCP) micelles were synthesized from polystyrene-block-poly(ethylene oxide) (PS-b-PEO) (PS 9.5 kDa:PEO 18.0 kDa) in the presence and absence of superparamagnetic iron oxide nanoparticles (SPIONs) or quantum dots (QDs). Encapsulant concentration was varied, and the effect of encapsulant NP ligands on final particle size was investigated. FINDINGS EE-SA generated both pure polymer NPs and nanocomposites containing SPIONs and QDs. PLGA particles spanned from sub- to super-micron sizes. PS-b-PEO NPs and nanocomposites were highly monodisperse, and more highly loaded than those made via a conventional, surfactant-rich IS process. Free ligands decreased the size of pure BCP particles. Increasing encapsulant levels led to a morphological transition from spherical to worm-like to densely loaded structures.
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Affiliation(s)
- Kil Ho Lee
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA
| | - Megan Ireland
- Department of Biomedical Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA
| | - Brandon L Miller
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA
| | - Barbara E Wyslouzil
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA; Department of Chemistry and Biochemistry, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA.
| | - Jessica O Winter
- William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA; Department of Biomedical Engineering, The Ohio State University, 151 W. Woodruff Ave., Columbus, OH 43210, USA.
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4
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Ishizaka T, Chatterjee M, Kawanami H. Rapid and continuous fabrication of TiO 2 nanoparticles encapsulated by polyimide fine particles using a multistep flow-system and their application. RSC Adv 2021; 11:2083-2087. [PMID: 35424204 PMCID: PMC8693696 DOI: 10.1039/d0ra09810h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 12/17/2020] [Indexed: 11/21/2022] Open
Abstract
PI fine particles encapsulating a large number of TiO2 nanoparticles (PI FPs/TiO2 NPs) were successfully fabricated rapidly and continuously by the emulsion re-precipitation method using a multistep flow synthetic system. The fabricated material, PI FPs/TiO2 NPs, was spherical in structure with a diameter of 214 nm, and the mean size of TiO2 NPs was 5.2 nm. Line scan elemental analysis with SEM-EDX showed that the TiO2 NPs were disproportionately embedded near the surface of the PI FPs. UV-vis transmission spectra revealed high UV shielding efficiency of the PI FPs/TiO2 NPs as the NPs are located near the surface. We rapidly and continuously fabricated TiO2 nanoparticles encapsulated by polymer fine particles, and the fabricated nanomaterials showed high UV shielding efficiency.![]()
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Affiliation(s)
- Takayuki Ishizaka
- Research Institute for Chemical Process Technology
- National Institute of Advanced Industrial Science and Technology (AIST)
- Sendai
- Japan
| | - Maya Chatterjee
- Research Institute for Chemical Process Technology
- National Institute of Advanced Industrial Science and Technology (AIST)
- Sendai
- Japan
| | - Hajime Kawanami
- Interdisciplinary Research Center for Catalytic Chemistry
- National Institute of Advanced Industrial Science and Technology (AIST)
- Tsukuba
- Japan
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5
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Kumar R, Mondal K, Panda PK, Kaushik A, Abolhassani R, Ahuja R, Rubahn HG, Mishra YK. Core-shell nanostructures: perspectives towards drug delivery applications. J Mater Chem B 2020; 8:8992-9027. [PMID: 32902559 DOI: 10.1039/d0tb01559h] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Nanosystems have shown encouraging outcomes and substantial progress in the areas of drug delivery and biomedical applications. However, the controlled and targeted delivery of drugs or genes can be limited due to their physicochemical and functional properties. In this regard, core-shell type nanoparticles are promising nanocarrier systems for controlled and targeted drug delivery applications. These functional nanoparticles are emerging as a particular class of nanosystems because of their unique advantages, including high surface area, and easy surface modification and functionalization. Such unique advantages can facilitate the use of core-shell nanoparticles for the selective mingling of two or more different functional properties in a single nanosystem to achieve the desired physicochemical properties that are essential for effective targeted drug delivery. Several types of core-shell nanoparticles, such as metallic, magnetic, silica-based, upconversion, and carbon-based core-shell nanoparticles, have been designed and developed for drug delivery applications. Keeping the scope, demand, and challenges in view, the present review explores state-of-the-art developments and advances in core-shell nanoparticle systems, the desired structure-property relationships, newly generated properties, the effects of parameter control, surface modification, and functionalization, and, last but not least, their promising applications in the fields of drug delivery, biomedical applications, and tissue engineering. This review also supports significant future research for developing multi-core and shell-based functional nanosystems to investigate nano-therapies that are needed for advanced, precise, and personalized healthcare systems.
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Affiliation(s)
- Raj Kumar
- Faculty of Engineering and Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan-52900, Israel.
| | - Kunal Mondal
- Materials Science and Engineering Department, Idaho National Laboratory, Idaho Falls, ID 83415, USA.
| | - Pritam Kumar Panda
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120, Uppsala, Sweden
| | - Ajeet Kaushik
- NanoBioTech Laboratory, Department of Natural Sciences, Division of Sciences, Art, & Mathematics, Florida Polytechnic University, Lakeland, FL-33805, USA
| | - Reza Abolhassani
- Mads Clausen Institute, NanoSYD, University of Southern Denmark, Alsion 2, DK-6400, Sønderborg, Denmark.
| | - Rajeev Ahuja
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120, Uppsala, Sweden and Applied Materials Physics, Department of Materials Science and Engineering, Royal Institute of Technology (KTH), SE-10044 Stockholm, Sweden
| | - Horst-Günter Rubahn
- Mads Clausen Institute, NanoSYD, University of Southern Denmark, Alsion 2, DK-6400, Sønderborg, Denmark.
| | - Yogendra Kumar Mishra
- Mads Clausen Institute, NanoSYD, University of Southern Denmark, Alsion 2, DK-6400, Sønderborg, Denmark.
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6
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Brush-modified materials: Control of molecular architecture, assembly behavior, properties and applications. Prog Polym Sci 2020. [DOI: 10.1016/j.progpolymsci.2019.101180] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Yi C, Yang Y, Liu B, He J, Nie Z. Polymer-guided assembly of inorganic nanoparticles. Chem Soc Rev 2019; 49:465-508. [PMID: 31845685 DOI: 10.1039/c9cs00725c] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The self-assembly of inorganic nanoparticles is of great importance in realizing their enormous potentials for broad applications due to the advanced collective properties of nanoparticle ensembles. Various molecular ligands (e.g., small molecules, DNAs, proteins, and polymers) have been used to assist the organization of inorganic nanoparticles into functional structures at different hierarchical levels. Among others, polymers are particularly attractive for use in nanoparticle assembly, because of the complex architectures and rich functionalities of assembled structures enabled by polymers. Polymer-guided assembly of nanoparticles has emerged as a powerful route to fabricate functional materials with desired mechanical, optical, electronic or magnetic properties for a broad range of applications such as sensing, nanomedicine, catalysis, energy storage/conversion, data storage, electronics and photonics. In this review article, we summarize recent advances in the polymer-guided self-assembly of inorganic nanoparticles in both bulk thin films and solution, with an emphasis on the role of polymers in the assembly process and functions of resulting nanostructures. Precise control over the location/arrangement, interparticle interaction, and packing of inorganic nanoparticles at various scales are highlighted.
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Affiliation(s)
- Chenglin Yi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
| | - Yiqun Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
| | - Ben Liu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, China and Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA.
| | - Jie He
- Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA.
| | - Zhihong Nie
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
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8
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Lu D, Zhou J, Chen Y, Ma J, Duan H. Self-Assembly of Polymer-Coated Plasmonic Nanocrystals: From Synthetic Approaches to Practical Applications. Macromol Rapid Commun 2018; 40:e1800613. [PMID: 30456873 DOI: 10.1002/marc.201800613] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/28/2018] [Indexed: 11/08/2022]
Abstract
Self-assembly of plasmonic nanocrystals (PNCs) and polymers provides access to a variety of functionalized metallic-polymer building blocks and higher-order hybrid plasmonic assemblies, and thus is of considerable fundamental and practical interest. The hybrid assemblies often not only inherit individual characteristics of polymers and PNCs but also exhibit distinct photophysical and catalytic properties compared to that of a single PNC building block. The tailorable plasmonic coupling between PNCs within assemblies enables the precise control over localized surface plasmon resonance, which subsequently affords a series of light-driven or photo-activated applications, such as surface-enhanced Raman scattering detection, photoacoustic imaging, photothermal therapy, and photodynamic therapy. In this review, the synthetic strategies of a library of PNC-polymer hybrid building blocks and corresponding assemblies are summarized along with the mechanisms of polymer-assisted self-assembly of PNCs and the concepts for bridging the intrinsic properties of PNC-polymer assemblies to widespread practical applications.
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Affiliation(s)
- Derong Lu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457
| | - Jiajing Zhou
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457
| | - Yonghao Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457
| | - Jielin Ma
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457
| | - Hongwei Duan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457
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9
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Zhu L, Cao Y, Ni X, You A, Cao G. Facile and versatile strategy to prepare magnetic molecularly imprinted particles based on the coassembly of magnetic nanoparticles and amphiphilic random copolymers. J Sep Sci 2017; 41:578-581. [DOI: 10.1002/jssc.201700949] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/22/2017] [Accepted: 10/24/2017] [Indexed: 01/31/2023]
Affiliation(s)
- Lili Zhu
- The Key Laboratory of Food Colloids and Biotechnology; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi China
- School of Pharmacy; Anhui Medical University; Hefei China
| | - Yuhua Cao
- The Key Laboratory of Food Colloids and Biotechnology; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi China
| | - Xinjiong Ni
- The Key Laboratory of Food Colloids and Biotechnology; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi China
| | - Aimei You
- The Key Laboratory of Food Colloids and Biotechnology; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi China
| | - Guangqun Cao
- The Key Laboratory of Food Colloids and Biotechnology; Ministry of Education; School of Chemical and Material Engineering; Jiangnan University; Wuxi China
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10
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Microwave Assisted Synthesis of Palladium Nanoparticles in an Aqueous Emulsion of Copolymer: Application to Catalysis. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1259-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Kim JH, Zakia M, Kim JH, Park SS, Yoon J, Huh P, Yoo SII. Clustered assembly of Au nanoparticles from spherical diblock copolymer micelles encapsulating Au nanoparticle. J Appl Polym Sci 2017. [DOI: 10.1002/app.44693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jang Hwan Kim
- Department of Polymer Engineering; Pukyong National University; 365 Sinseon-ro, Nam-gu Busan 608-739 Korea
| | - Maulida Zakia
- Department of Polymer Engineering; Pukyong National University; 365 Sinseon-ro, Nam-gu Busan 608-739 Korea
| | - Joo Hyun Kim
- Department of Polymer Engineering; Pukyong National University; 365 Sinseon-ro, Nam-gu Busan 608-739 Korea
| | - Seong Soo Park
- Department of Industrial Chemistry; Pukyong National University; 365 Sinseon-ro, Nam-gu Busan 608-739 Korea
| | - Jinhwan Yoon
- Department of Chemistry; Dong-A University; Nakdong-Daero 550beon-gil, Saha-gu Busan 604-714 Korea
| | - PilHo Huh
- Department of Polymer Science and Engineering; Pusan National University; Busan 609-735 Korea
| | - Seong II Yoo
- Department of Polymer Engineering; Pukyong National University; 365 Sinseon-ro, Nam-gu Busan 608-739 Korea
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12
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Seo E, Lee SH, Lee S, Choi SH, Hawker CJ, Kim BS. Highly stable Au nanoparticles with double hydrophilic block copolymer templates: correlation between structure and stability. Polym Chem 2017. [DOI: 10.1039/c7py00773f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We herein report a facile synthetic method for preparing gold nanoparticles (Au NPs) with superior colloidal stability using a series of double hydrophilic block copolymers (DHBC), poly(ethylene oxide)-block-poly(acrylic acid) (PEO-b-PAA), as a template (Au@DHBC NPs).
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Affiliation(s)
- Eunyong Seo
- Department of Energy Engineering
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan 44919
- Korea
| | - Sang-Ho Lee
- Materials Research Laboratory and Departments of Materials
- Chemistry and Biochemistry
- University of California
- Santa Barbara
- USA
| | - Sangho Lee
- Department of Chemical Engineering
- Hongik University
- Seoul 04066
- Korea
| | - Soo-Hyung Choi
- Department of Chemical Engineering
- Hongik University
- Seoul 04066
- Korea
| | - Craig J. Hawker
- Materials Research Laboratory and Departments of Materials
- Chemistry and Biochemistry
- University of California
- Santa Barbara
- USA
| | - Byeong-Su Kim
- Department of Energy Engineering
- Ulsan National Institute of Science and Technology (UNIST)
- Ulsan 44919
- Korea
- Department of Chemistry
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13
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Song J, Huang P, Chen X. Preparation of plasmonic vesicles from amphiphilic gold nanocrystals grafted with polymer brushes. Nat Protoc 2016; 11:2287-2299. [PMID: 27763624 PMCID: PMC5085291 DOI: 10.1038/nprot.2016.137] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Gold nanovesicles contain multiple nanocrystals within a polymeric coating. The strong plasmonic coupling between adjacent nanoparticles in their vesicular shell makes ultrasensitive biosensing and bioimaging possible. In our laboratory, multifunctional plasmonic vesicles are assembled from amphiphilic gold nanocrystals (such as gold nanoparticles and gold nanorods) coated with mixed hydrophilic and hydrophobic polymer brushes or amphiphilic diblock co-polymer brushes. To fulfill the different requirements of biomedical applications, different polymers that are either pH=responsive, photoactive or biodegradable can be used to form the hydrophobic brush, while the hydrophilicity is maintained by polyethylene glycol (PEG). This protocol covers the preparation, surface functionalization and self-assembly of amphiphilic gold nanocrystals grafted covalently with polymer brushes. The protocol can be completed within 2 d. The preparation of amphiphilic gold nanocrystals, coated with amphiphilic diblock polymer brushes using a 'grafting to' method or mixed hydrophilic and hydrophobic polymer brushes using tandem 'grafting to' and 'grafting from' methods, is described. We also provide detailed procedures for the preparation and characterization of pH-responsive plasmonic gold nanovesicles from amphiphilic gold nanocrystals using a film-rehydration method that can be completed within ∼3 d.
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Affiliation(s)
- Jibin Song
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering (NIBIB), US National Institutes of Health (NIH), Bethesda, Maryland, USA
| | - Peng Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering (NIBIB), US National Institutes of Health (NIH), Bethesda, Maryland, USA
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14
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Yang C, Li Q, Cai C, Lin J. Nanoparticle-Induced Ellipse-to-Vesicle Morphology Transition of Rod-Coil-Rod Triblock Copolymer Aggregates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:6917-6927. [PMID: 27314970 DOI: 10.1021/acs.langmuir.6b01484] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Cooperative self-assembly behavior of rod-coil-rod poly(γ-benzyl-l-glutamate)-block-poly(ethylene glycol)-block-poly(γ-benzyl-l-glutamate) (PBLG-b-PEG-b-PBLG) amphiphilic triblock copolymers and hydrophobic gold nanoparticles (AuNPs) was investigated by both experiments and dissipative particle dynamics (DPD) simulations. It was discovered that pure PBLG-b-PEG-b-PBLG copolymers self-assemble into ellipse-like aggregates, and the morphology transforms into vesicles as AuNPs are introduced. When the hydrophobicity of AuNPs is close to that of the copolymers, AuNPs are homogeneously distributed in the vesicle wall. While for the AuNPs with higher hydrophobicity, they are embedded in the vesicle wall as clusters. In addition to the experimental observations, DPD simulations were performed on the self-assembly behavior of triblock copolymer/nanoparticle mixtures. Simulations well reproduced the morphology transition observed in the experiments and provided additional information such as chain packing mode in aggregates. It is deduced that the main reason for the ellipse-to-vesicle transition of the aggregates is attributed to the breakage of ordered and dense packing of PBLG rods in the aggregate core by encapsulating AuNPs. This study deepens our understanding of the self-assembly behavior of rod-coil copolymer/nanoparticle mixtures and provides strategy for designing hybrid polypeptide nanostructures.
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Affiliation(s)
- Chaoying Yang
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, China
| | - Qing Li
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, China
| | - Chunhua Cai
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, China
| | - Jiaping Lin
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai 200237, China
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15
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Luan B, Friedrich T, Zhai J, Streltsov VA, Lindsey BW, Kaslin J, de Jonge MD, Zhu J, Hughes TC, Hao X. A library of AuNPs modified by RAFT polymers of different charge and chain length: high throughput synthesis and synchrotron XFM imaging using a zebrafish larvae model. RSC Adv 2016. [DOI: 10.1039/c6ra02801b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A PAuNPs library was constructed via high throughput methods and PAuNPs were visualized in PAuNPs injected zebrafish larvae by synchrotron XFM.
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Affiliation(s)
- Bao Luan
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
- Graduate University of Chinese Academy of Sciences
| | - Timo Friedrich
- Australian Regenerative Medicine Institute
- Monash University
- Clayton
- Australia
| | | | | | | | - Jan Kaslin
- Australian Regenerative Medicine Institute
- Monash University
- Clayton
- Australia
| | | | - Jin Zhu
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
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16
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Jo SH, Kim HW, Song M, Je NJ, Oh SH, Chang BY, Yoon J, Kim JH, Chung B, Yoo SI. Core-Corona Functionalization of Diblock Copolymer Micelles by Heterogeneous Metal Nanoparticles for Dual Modality in Chemical Reactions. ACS APPLIED MATERIALS & INTERFACES 2015; 7:18778-18785. [PMID: 26241213 DOI: 10.1021/acsami.5b05408] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nanoscale assemblies composed of different types of nanoparticles (NPs) can reveal interesting aspects about material properties beyond the functions of individual constituent NPs. This research direction may also represent current challenges in nanoscience toward practical applications. With respect to the assembling method, synthetic or biological nanostructures can be utilized to organize heterogeneous NPs in specific sites via chemical or physical interactions. However, those assembling methods often encounter uncontrollable particle aggregation or phase separation. In this study, we anticipated that the self-segregating properties of block copolymer micelles could be particularly useful for organizing heterogeneous NPs, because the presence of chemically distinct domains such as the core and the corona can facilitate the selective placement of constituent NPs in separate domains. Here, we simultaneously functionalized the core and the corona of micelles by Au NPs and Ag NPs, which exhibited plasmonic and catalytic functions, respectively. Our primary question is whether these plasmonic and catalytic functions can be combined in the assembled structures to engineer the kinetics of a model chemical reaction. To test this hypothesis, the catalytic reduction of 4-nitrophenol was selected to evaluate the collective properties of the micellar assemblies in a chemical reaction.
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Affiliation(s)
| | | | | | | | - Sung-Hoon Oh
- Department of Chemistry, Pukyong National University , 45 Yongso-ro, Nam-gu, Busan 608-739, Korea
| | - Byoung-Yong Chang
- Department of Chemistry, Pukyong National University , 45 Yongso-ro, Nam-gu, Busan 608-739, Korea
| | - Jinhwan Yoon
- Department of Chemistry, Dong-A University , Nakdong-Daero 550beon-gil, Saha-gu, Busan 608-739, Korea
| | | | - Bonghoon Chung
- Products Solution Research Group, Global R&D Center, POSCO , Songdo-dong, Yeonsu-gu, Incheon 406-840, Korea
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17
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Yan N, Liu H, Zhu Y, Jiang W, Dong Z. Entropy-Driven Hierarchical Nanostructures from Cooperative Self-Assembly of Gold Nanoparticles/Block Copolymers under Three-Dimensional Confinement. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01219] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Nan Yan
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- University
of
Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Hongxia Liu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
- College
of Materials Science and Engineering, Jilin University, Changchun 130022, People’s Republic of China
| | - Yutian Zhu
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Wei Jiang
- State
Key Laboratory of Polymer Physics and Chemistry, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People’s Republic of China
| | - Zeyuan Dong
- State
Key Laboratory of Supramolecular Structure and Materials College of
Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, People’s Republic of China
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18
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Synthesis of monodisperse magnetic sandwiched gold nanoparticle as an easily recyclable catalyst with a protective polymer shell. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2014.11.055] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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19
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Rossner C, Vana P. Nanocomposites and Self-Assembled Structures via Controlled Radical Polymerization. CONTROLLED RADICAL POLYMERIZATION AT AND FROM SOLID SURFACES 2015. [DOI: 10.1007/12_2015_314] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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20
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Su S, Yue G, Huang D, Yang G, Lai X, Zhao P. Parts per Million Level, Green, and Magnetically-recoverable Triazole Ligand-stabilized Au and Pd Nanoparticle Catalysts. RSC Adv 2015. [DOI: 10.1039/c5ra05740j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A nano gold or palladium catalyst is encapsulated into a nano reactor via triazole and recovered by an external magnetic field.
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Affiliation(s)
- Song Su
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
- College of Materials Science and Engineering
| | - Guozong Yue
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
| | - Deshun Huang
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
| | - Guiying Yang
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
- College of Materials Science and Engineering
| | - Xinchun Lai
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
- College of Materials Science and Engineering
| | - Pengxiang Zhao
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
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21
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Palui G, Aldeek F, Wang W, Mattoussi H. Strategies for interfacing inorganic nanocrystals with biological systems based on polymer-coating. Chem Soc Rev 2015; 44:193-227. [DOI: 10.1039/c4cs00124a] [Citation(s) in RCA: 164] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A representative set of nanocrystals made of semiconductors, Au and iron oxide, surface-capped with polymer ligands presenting various metal-coordinating groups.
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Affiliation(s)
- Goutam Palui
- Florida State University
- Department of Chemistry and Biochemistry
- Tallahassee
- USA
| | - Fadi Aldeek
- Florida State University
- Department of Chemistry and Biochemistry
- Tallahassee
- USA
| | - Wentao Wang
- Florida State University
- Department of Chemistry and Biochemistry
- Tallahassee
- USA
| | - Hedi Mattoussi
- Florida State University
- Department of Chemistry and Biochemistry
- Tallahassee
- USA
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22
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Huang D, Yang G, Feng X, Lai X, Zhao P. Triazole-stabilized gold and related noble metal nanoparticles for 4-nitrophenol reduction. NEW J CHEM 2015. [DOI: 10.1039/c5nj00673b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The preparation of N-substituted triazole–polyethylene glycol-stabilized metal nanoparticles and their high catalytic activities for 4-nitrophenol reduction.
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Affiliation(s)
- Deshun Huang
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
| | - Guiying Yang
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
- College of Materials Science and Engineering
| | - Xingwen Feng
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
| | - Xinchun Lai
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
- College of Materials Science and Engineering
| | - Pengxiang Zhao
- Nano Chemistry Group
- Science and Technology on Surface Physics and Chemistry Laboratory
- Mianyang 621907
- China
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23
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Wang Y, He J, Liu C, Chong WH, Chen H. Thermodynamik und Kinetik in der Nanosynthese. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402986] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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24
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Wang Y, He J, Liu C, Chong WH, Chen H. Thermodynamics versus Kinetics in Nanosynthesis. Angew Chem Int Ed Engl 2014; 54:2022-51. [DOI: 10.1002/anie.201402986] [Citation(s) in RCA: 329] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Indexed: 12/29/2022]
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25
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Gontard LC, Fernández A, Dunin-Borkowski RE, Kasama T, Lozano-Pérez S, Lucas S. Transmission electron microscopy of unstained hybrid Au nanoparticles capped with PPAA (plasma-poly-allylamine): Structure and electron irradiation effects. Micron 2014; 67:1-9. [DOI: 10.1016/j.micron.2014.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 06/11/2014] [Accepted: 06/12/2014] [Indexed: 10/25/2022]
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26
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Liu C, Xu J, Chen H. Encapsulation of Au Nanoparticles by Poly(4-Vinylpyridine)-Block-Polystyrene-Block-Poly(4-Vinylpyridine) for Controlled Chain Assembly. J Inorg Organomet Polym Mater 2014. [DOI: 10.1007/s10904-014-0126-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Controlled accommodation of metal nanostructures within the matrices of polymer architectures through solution-based synthetic strategies. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2014.07.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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28
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Song L, Zhang X, Liu J, Li X. Preparation of stable gold nanoparticles by using diblock copolymer mixture as encapsulating agent. POLYMER SCIENCE SERIES B 2014. [DOI: 10.1134/s1560090414050133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Gao JP, Wu W, Rong L, Mao GL, Ning YN, Zhao QL, Huang J, Ma Z. Well-defined monocarboxyl-terminated polystyrene with low molecular weight: A candidate for the fabrication of highly ordered microporous films and microspheres via a static breath-figure process. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.07.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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30
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Lee PTC, Chiu CW, Chang LY, Chou PY, Lee TM, Chang TY, Wu MT, Cheng WY, Kuo SW, Lin JJ. Tailoring pigment dispersants with polyisobutylene twin-tail structures for electrowetting display application. ACS APPLIED MATERIALS & INTERFACES 2014; 6:14345-14352. [PMID: 25046453 DOI: 10.1021/am503599k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We have designed a class of highly hydrophobic dispersants for finely dispersing carbon black and organic pigment nanoparticles in apolar mediums. The synthesis involved the use of polyisobutylene-g-succinic anhydride (PIB-SA) and judiciously selected amines by amidation and imidation. The structures were characterized by infrared spectroscopy for anhydride functionalities in the starting materials and amide/imide linkages in the products. These polymeric forms of dispersants were structurally varied with respects to their PIB molecular weight, twin-tails, and linkages. Their relative performance for dispersing six different pigments in decane was evaluated against solution homogeneity, viscosity, stability, and particle size. The fine dispersion was achieved at particle sizes of ca. 100 nm, with the viscosity as low as 2-3 cP. The measurement of zeta potentials, which varied from -39.8 to -5.1 mV with pigment addition, revealed a strong surface-charge interaction between pigment and PIB dispersant molecules. Examination by TEM (transmission electronic microscope) showed the homogeneous dispersion of the primary structures of pigment particles at ca. 20 nm in diameter. The polymeric dispersants with different PIB tails and imide functionalities could be tailored for pigment stability in the oil phase, which is potentially suitable for the electrowetting devices.
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Affiliation(s)
- Patricia T C Lee
- Institute of Polymer Science and Engineering, National Taiwan University , Taipei 10617, Taiwan
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31
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Jouault N, Lee D, Zhao D, Kumar SK. Block-copolymer-mediated nanoparticle dispersion and assembly in polymer nanocomposites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:4031-4036. [PMID: 24711123 DOI: 10.1002/adma.201305641] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 02/21/2014] [Indexed: 06/03/2023]
Abstract
A individual nanoparticle (NP) dispersion in polymer nanocomposites has been obtained through the adsorption of PSbP2VP block copolymer (BCP) at the NPs' surface in solution. The adsorbed block increases the minimum inter-NP distance, while the non-adsorbed block has favourable entropy of mixing with the matrix polymer with the same chemical structure. Physical adsorption of BCP provides a simple, robust means of organizing NPs in a chemically unfavourable polymer.
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Affiliation(s)
- Nicolas Jouault
- Department of Chemical Engineering, Columbia University, 500 W. 120th St, New York, NY, 10027, USA
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32
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Song J, Duan B, Wang C, Zhou J, Pu L, Fang Z, Wang P, Lim TT, Duan H. SERS-encoded nanogapped plasmonic nanoparticles: growth of metallic nanoshell by templating redox-active polymer brushes. J Am Chem Soc 2014; 136:6838-41. [PMID: 24773367 DOI: 10.1021/ja502024d] [Citation(s) in RCA: 129] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report a new strategy to synthesize core-shell metal nanoparticles with an interior, Raman tag-encoded nanogap by taking advantage of nanoparticle-templated self-assembly of amphiphilic block copolymers and localized metal precursor reduction by redox-active polymer brushes. Of particular interest for surface-enhanced Raman scattering (SERS) is that the nanogap size can be tailored flexibly, with the sub-2 nm nanogap leading to the highest SERS enhancement. Our results have further demonstrated that surface functionalization of the nanogapped Au nanoparticles with aptamer targeting ligands allows for specific recognition and ultrasensitive detection of cancer cells. The general applicability of this new synthetic strategy, coupled with recent advances in controlled wet-chemical synthesis of functional nanocrystals, opens new avenues to multifunctional core-shell nanoparticles with integrated optical, electronic, and magnetic properties.
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Affiliation(s)
- Jibin Song
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 70 Nanyang Drive, Singapore 637457
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33
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34
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Encapsulation of inorganic nanoparticles into block copolymer micellar aggregates: Strategies and precise localization of nanoparticles. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.01.027] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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35
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Yuzik-Klimova EY, Kuchkina NV, Sorokina SA, Morgan DG, Boris B, Nikoshvili LZ, Lyubimova NA, Matveeva VG, Sulman EM, Stein BD, Mahmoud WE, Al-Ghamdi AA, Kostopoulou A, Lappas A, Shifrina ZB, Bronstein LM. Magnetically Recoverable Catalysts Based on Polyphenylenepyridyl Dendrons and Dendrimers. RSC Adv 2014. [DOI: 10.1039/c4ra00878b] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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36
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Wang W, Aldeek F, Ji X, Zeng B, Mattoussi H. A multifunctional amphiphilic polymer as a platform for surface-functionalizing metallic and other inorganic nanostructures. Faraday Discuss 2014; 175:137-51. [DOI: 10.1039/c4fd00154k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We designed a new set of polymer ligands that combine multiple metal-coordinating groups and short polyethylene glycol (PEG) moieties in the same structure. The ligand design relies on the controlled grafting of a large number of amine-terminated histamines and PEG short chains onto a poly(isobutylene-alt-maleic anhydride) backbone,viaa one-step nucleophilic addition reaction. This addition reaction is highly efficient, can be carried out in organic media and does not require additional reagents. We show that when imidazole groups are used the resulting polymer ligand can strongly ligate onto metal nanostructures such as nanoparticles (NPs) and nanorods (NRs) made of gold cores. The resulting polymer-coated NPs and NRs exhibit good colloidal stability to pH changes and added electrolytes. This constitutes a departure from the use of thiol-based ligands to coordinate on Au surfaces. The present chemical approach also opens up additional opportunities for designing hydrophilic and reactive platforms where the polymer coating can be adjusted to various metal and metal oxide surfaces by simply modifying or combining the addition reaction with other metal coordinating groups. These could include iron oxide NPs and semiconductor QDs. These polymer-capped NPs and NRs can be used to develop biologically-active platforms with potential use for drug delivery and sensing.
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Affiliation(s)
- Wentao Wang
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee, USA
| | - Fadi Aldeek
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee, USA
| | - Xin Ji
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee, USA
| | - Birong Zeng
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee, USA
| | - Hedi Mattoussi
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee, USA
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37
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D'Souza-Mathew M, Cayre OJ, Hunter TN, Biggs SR. Facile synthesis of gold core-polymer shell responsive particles. J Colloid Interface Sci 2013; 407:187-95. [PMID: 23891444 DOI: 10.1016/j.jcis.2013.06.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 06/02/2013] [Accepted: 06/18/2013] [Indexed: 10/26/2022]
Abstract
The free adsorption of an end-functionalised weak polybase, poly dimethylaminoethyl methacrylate (pDMAEMA), on the surface of colloidal gold nanoparticles (AuNPs) as a route to produce a responsive core-shell nanoparticle is explored here. Optimal conditions for the physisorption of the polymeric chains onto the colloidal nanoparticles are explored. A dense coverage is facilitated by rapidly mixing the well solvated pH responsive homopolymer, at low pH, into a relatively poor solvent environment, at higher pH, containing a stable dispersion of charge-stabilised gold nanoparticles. The rapid pH change causes the polymer chains to concurrently collapse and adsorb onto the gold nanoparticles. In order to achieve sterically stable, monodisperse and responsive core shell nanoparticles, a crucial factor is the pH difference of the systems prior to their mixing. Once adsorbed, end-functional thiol groups on the adsorbed polymer chains can form more permanent covalent attachments with the core particles. Dynamic light scattering coupled with mobility data of pH titration experiments show that the core-shell particles exhibit a responsive character consistent with the observed potentiometric titration data of the polymer. The same particles demonstrate reversible aggregation when cycled between pH extremes. This is confirmed by shifts in the SPR peak of the corresponding UV-Vis absorption profile. The ease and flexibility of this strategy for core-shell particle production, coupled with the stability and responsiveness of the product, make this a promising colloidal coating mechanism.
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Affiliation(s)
- Mark D'Souza-Mathew
- Institute of Particle Science and Engineering, School of Process, Environmental and Materials Engineering, University of Leeds, Leeds LS2 9JT, United Kingdom.
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38
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Xu J, Han Y, Cui J, Jiang W. Size selective incorporation of gold nanoparticles in diblock copolymer vesicle wall. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10383-10392. [PMID: 23875535 DOI: 10.1021/la402132x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A systematic study is conducted to reveal how far the polymeric vesicle wall can embed gold nanoparticles (AuNPs) with different sizes by combining experiments and self-consistent field simulations. Both the experimental and simulative results indicate that the location of AuNPs in vesicle wall or in spherical micelle is heavily size dependent. Whether the AuNPs enter the vesicle wall or not is determined by a ratio of the diameter of AuNPs (D0) to the thickness of the vesicle wall (d(w0)). The 1-dodecanethiol-coated AuNPs (Au(x)R) with D0/d(w0) < 0.3 will stably disperse in the vesicle walls. For polystyrene-coated AuNPs (Au(x)S), a criterion of D0/d(w0) is proposed based on the phase diagram; i.e., the Au(x)S with D0/d(w0) < 0.5 can be located in the vesicle wall. Otherwise, the Au(x)R and the Au(x)S prefer to locate in spherical micelles. Moreover, the contributions of enthalpy and entropy to the total free energy of the system are respectively calculated to reveal the mechanism of the size selective distribution of AuNPs. The results demonstrate that the escape of AuNPs from vesicle walls and their selective distribution in spherical micelles is an entropy-driven process. Our study provides an important guideline for fabricating nanoparticle/block copolymer hybrid vesicles in dilute solution.
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Affiliation(s)
- Jiangping Xu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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39
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Coating barium titanate nanoparticles with polyethylenimine improves cellular uptake and allows for coupled imaging and gene delivery. Colloids Surf B Biointerfaces 2013; 112:108-12. [PMID: 23973999 DOI: 10.1016/j.colsurfb.2013.07.045] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2013] [Revised: 07/18/2013] [Accepted: 07/23/2013] [Indexed: 11/21/2022]
Abstract
Barium titanate nanoparticles (BT NP) belong to a class of second harmonic generating (SHG) nanoprobes that have recently demonstrated promise in biological imaging. Unfortunately, BT NPs display low cellular uptake efficiencies, which may be a problem if cellular internalization is desired or required for a particular application. To overcome this issue, while concomitantly developing a particle platform that can also deliver nucleic acids into cells, we coated the BT NPs with the cationic polymer polyethylenimine (PEI)-one of the most effective nonviral gene delivery agents. Coating of BT with PEI yielded complexes with positive zeta potentials and resulted in an 8-fold increase in cellular uptake of the BT NPs. Importantly, we were able to achieve high levels of gene delivery with the BT-PEI/DNA complexes, supporting further efforts to generate BT platforms for coupled imaging and gene therapy.
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40
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Hickey RJ, Meng X, Zhang P, Park SJ. Low-dimensional nanoparticle clustering in polymer micelles and their transverse relaxivity rates. ACS NANO 2013; 7:5824-33. [PMID: 23731021 PMCID: PMC4506779 DOI: 10.1021/nn400824b] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
One- or two-dimensional arrays of iron oxide nanoparticles were formed in colloidal assemblies of amphiphilic polymers. Electron tomography imaging revealed that nanoparticles are arranged into one-dimensional strings in magneto-micelles or two-dimensional sheets in magneto-core/shell assemblies. The distinct directional assembly behavior was attributed to the interparticle interaction relative to the nanoparticle-polymer interaction, which was modulated by varying the cosolvent used for the solution phase self-assembly. Magneto-core/shell assemblies with varying structural parameters were formed with a range of different sized as-synthesized nanoparticles. The transverse magnetic relaxivity rates (r2) of a series of different assemblies were determined to examine the effect of nanoparticle arrangement on the magnetic relaxivity for their potential applications in MRI. The results indicated that the assembly structure of nanoparticles in polymer micelles significantly affects the r2 of surrounding water, providing a way to control magnetic relaxivity.
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Affiliation(s)
- Robert J. Hickey
- Department of Chemistry, University of Pennsylvania, 231 S South 34th Street, Philadelphia, Pennsylvania 19104, United States
| | - Xin Meng
- Department of Structural Biology, University of Pittsburgh School of Medicine, 3501 Fifth Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Peijun Zhang
- Department of Structural Biology, University of Pittsburgh School of Medicine, 3501 Fifth Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - So-Jung Park
- Department of Chemistry, University of Pennsylvania, 231 S South 34th Street, Philadelphia, Pennsylvania 19104, United States
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41
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Lee PTC, Chiu CW, Lee TM, Chang TY, Wu MT, Cheng WY, Kuo SW, Lin JJ. First fabrication of electrowetting display by using pigment-in-oil driving pixels. ACS APPLIED MATERIALS & INTERFACES 2013; 5:5914-5920. [PMID: 23796039 DOI: 10.1021/am401840b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report the first fabrication of pigment particle-based electrowetting display (EWD) by using the requisite poly(isobutylene)-imide (PIB-imide) for effectively dispersing insoluble colorant in decane/water system. The series of PIB-imide dispersants were prepared from the amidation/imidation of PIB-succinic anhydride with different hydrophobic lengths and a suitable amine. The structurally tailored dispersants by adopting the highly hydrophobic PIB tails allows the formation of homogeneous dispersion of nanosized pigment particles in decane and clearly separated from water. The pigment dispersion at particle size of ca. 100 nm and a low viscosity of 2-3 cps was obtained and fabricated into an EWD device which was operated at a driving voltage of 15-20 V in achieving a maximum aperture ratio of 80%. With the advantage of both fast response time and vivid color, the pigment-based EWD, as shown in the video, stands out as a promising new option for future transparent display and serves as a critical foundation for the next-generation advanced display applications.
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42
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Gao B, Rozin MJ, Tao AR. Plasmonic nanocomposites: polymer-guided strategies for assembling metal nanoparticles. NANOSCALE 2013; 5:5677-5691. [PMID: 23703218 DOI: 10.1039/c3nr01091k] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Noble metal nanoparticles that support localized surface plasmon resonances (LSPRs) have the unique ability to manipulate and confine light at subwavelength dimensions. Utilizing these capabilities in devices and coatings requires the controlled organization of metal nanoparticles into ordered or hierarchical structures. Polymer grafts can be used as assembly-regulating molecules that bind to the nanoparticle surface and guide nanoparticle organization in solution, at interfaces, and within condensed phases. Here, we present an overview of polymer-directed assembly of plasmonic nanoparticles. We discuss how polymer grafts can be used to control short-range nanoparticle interactions that dictate interparticle gap distance and orientation. We also discuss how condensed polymer grafts can be used to control long-range order within condensed nanoparticle-polymer blends. The assembly of shaped plasmonic nanoparticles that have potential applications in enhanced spectroscopy and optical metamaterials is highlighted. We end with a summary of promising new directions toward the fabrication of plasmonic nanocomposites that are responsive and possess three-dimensional order.
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Affiliation(s)
- Bo Gao
- NanoEngineering Department, University of California, San Diego, 9500 Gilman Dr #0448, La Jolla, CA 92093-0448, USA
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Guo DL, Tan LH, Wei ZP, Chen H, Wu T. Density-controlled synthesis of uniform ZnO nanowires: wide-range tunability and growth regime transition. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:2069-2075. [PMID: 23359529 DOI: 10.1002/smll.201201369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Indexed: 06/01/2023]
Affiliation(s)
- Dong Lai Guo
- Division of Physics and Applied Physics, Nanyang Technological University, 637371 Singapore
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44
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Guo R, Liu Y, Zhang Y, Dong A, Zhang J. Surface modification by self-assembled coating with amphiphilic comb-shaped block copolymers: A solution to the trade-off among solubility, adsorption and coating stability. Macromol Res 2013. [DOI: 10.1007/s13233-013-1142-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Tuning thermoresponsive behavior of diblock copolymers and their gold core hybrids. Part 2. How properties change depending on block attachment to gold nanoparticles. J Colloid Interface Sci 2013; 396:39-46. [PMID: 23484770 DOI: 10.1016/j.jcis.2013.01.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 12/30/2012] [Accepted: 01/04/2013] [Indexed: 11/21/2022]
Abstract
Thermoresponsive diblock copolymers of di(ethylene glycol) methyl ether methacrylate (DEGMA) and oligo(ethylene glycol) methyl ether acrylate (OEGA) were synthesized by reversible addition-fragmentation chain transfer polymerization, allowing us to prepare diblocks with a thiol group at the desired chain end, and bond that block to a ~20 nm gold nanoparticle core. The cloud point and coil-globule transition window were measured by UV-vis spectroscopy. The gold core lowered the cloud point and narrowed the coil-globule transition window of all the diblock hybrids, but raised the cloud point of statistical copolymer hybrids that had similar cloud points. The extent of the change in the thermo-response properties of the hybrid diblock copolymers was more significant when the gold was bonded to the DEGMA block than the OEGA block. This block is less hydrophilic and sterically hindered than OEGA and may adsorb more effectively to the gold so that the hydration of the outer OEGA block is relatively unaffected by the Au core. This work indicates that diblock copolymers allow factors such as steric bulk and the effects on arrangement around a metal core to be effective tools for manipulating thermo-responsive properties that are not as significant with statistical copolymers.
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Yoo M, Kim S, Bang J. Design and fabrication of thermally stable nanoparticles for well-defined nanocomposites. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/polb.23258] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Gage SH, Stein BD, Nikoshvili LZ, Matveeva VG, Sulman MG, Sulman EM, Morgan DG, Yuzik-Klimova EY, Mahmoud WE, Bronstein LM. Functionalization of monodisperse iron oxide NPs and their properties as magnetically recoverable catalysts. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:466-73. [PMID: 23234434 DOI: 10.1021/la304410z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Here we report the functionalization of monodisperse iron oxide nanoparticles (NPs) with commercially available functional acids containing multiple double bonds such as linolenic (LLA) and linoleic (LEA) acids or pyridine moieties such as 6-methylpyridine-2-carboxylic acid, isonicotinic acid, 3-hydroxypicolinic acid, and 6-(1-piperidinyl)pyridine-3-carboxlic acid (PPCA). Both double bonds and pyridine groups can be reacted with noble metal compounds to form catalytically active species in the exterior of magnetic NPs, thus making them promising magnetically recoverable catalysts. We determined that both LLA and LEA stabilize magnetic iron oxide NPs, allowing the formation of π-complexes with bis(acetonitrile)dichloropalladium(II) in the NP shells. In both cases, this leads to the formation of NP aggregates because of interparticle complexation. In the case of pyridine-containing ligands, only PPCA with two N-containing rings is able to provide NP stabilization and functionalization whereas other pyridine-containing acids did now allow sufficient steric stabilization. The interaction of PPCA-based particles with Pd acetate also leads to aggregation because of interparticle interactions, but the aggregates that are formed are much smaller. Nevertheless, the catalytic properties in the selective hydrogenation of dimethylethynylcarbinol (DMEC) to dimethylvinylcarbinol were the best for the catalyst based on LLA, demonstrating that the NP aggregates in all cases are penetrable for DMEC. Easy magnetic separation of this catalyst from the reaction solution makes it promising as a magnetically recoverable catalyst.
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Affiliation(s)
- Samuel H Gage
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
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48
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Mai Y, Eisenberg A. Selective localization of preformed nanoparticles in morphologically controllable block copolymer aggregates in solution. Acc Chem Res 2012; 45:1657-66. [PMID: 22839780 DOI: 10.1021/ar2003144] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of nanodevices currently requires the formation of morphologically controlled or highly ordered arrays of metal, semiconducting, or magnetic nanoparticles. In this context, polymer self-assembly provides a powerful bottom-up approach for constructing these materials. The self-assembly of block copolymers (BCPs) in solution is a facile and popular method for the preparation of aggregates of controllable morphologies, including spherical micelles, cylindrical micelles, vesicles (or polymersomes), thin films, and other complex structures that range from zero to three dimensions. Researchers can generally control the morphology of the aggregates by varying copolymer composition or environmental parameters, including the copolymer concentration, the common solvent, the content of the precipitant, or the presence of additives such as ions, among others. For example, as the content of the hydrophilic block in amphiphilic copolymers decreases, the aggregates formed from the copolymers can change from spherical micelles to cylindrical micelles and to vesicles. The aggregates of various morphologies provide excellent templates for the organization of the nanoparticles. The presence of various domains, such as cores, interfaces, and coronas, in BCP aggregates allows for selective localization of nanoparticles in different regions, which may critically affect the resulting properties and applications of the nanoparticles. For example, the incorporation of quantum dots (QDs) into micelle cores solves many problems encountered in the utilization of QDs in biological environments, including enhancement of water solubility, aggregation prevention, increases in circulation or retention time, and toxicity clearance. Simultaneously it preserves the unique optical performance of QDs compared with those of organic fluorophores, such as size-tunable light emission, improved signal brightness, resistance against photobleaching, and simultaneous excitation of multiple fluorescence colors. Therefore, many studies have focused on the selective localization of nanoparticles in BCP aggregates. This Account describes the selective localization of preformed spherical nanoparticles in different domains of BCP aggregates of controllable morphologies in solution, including spherical micelles, cylindrical micelles, and vesicles. These structures offer many potential applications in biotechnology, biomedicine, catalysis, etc. We also introduce other types of control, including interparticle spacing, particle number density, or aggregate size control. We highlight examples in which the surface coating, volume fraction, or size of the particles was tailored to precisely control incorporation. These examples build on the thermodynamic considerations of particle-polymer interactions, such as hydrophobic interactions, hydrogen bonding, electrostatic interactions, and ligand replacement, among others.
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Affiliation(s)
- Yiyong Mai
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 2K6, Canada
| | - Adi Eisenberg
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 2K6, Canada
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Grzelczak M, Sánchez-Iglesias A, Mezerji HH, Bals S, Pérez-Juste J, Liz-Marzán LM. Steric hindrance induces crosslike self-assembly of gold nanodumbbells. NANO LETTERS 2012; 12:4380-4384. [PMID: 22765519 DOI: 10.1021/nl3021957] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In the formation of colloidal molecules, directional interactions are crucial for controlling the spatial distribution of the building blocks. Anisotropic nanoparticles facilitate directional clustering via steric constraints imposed by each specific shape, thereby restricting assembly along certain directions. We show in this Letter that the combination of patchiness (attraction) and shape (steric hindrance) allows assembling gold nanodumbbell building blocks into crosslike dimers with well-controlled interparticle distance and relative orientation. Steric hindrance between interacting dumbbell-like particles opens up a new synthetic approach toward low-symmetry plasmonic clusters, which may significantly contribute to understand complex plasmonic phenomena.
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Affiliation(s)
- Marek Grzelczak
- Departamento de Química Física, Universidade de Vigo, 36310 Vigo, Spain.
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Mori H, Endo T. Amino-Acid-Based Block Copolymers by RAFT Polymerization. Macromol Rapid Commun 2012; 33:1090-107. [DOI: 10.1002/marc.201100887] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Revised: 02/19/2012] [Indexed: 12/21/2022]
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