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Gold nanoparticle arrays organized in mixed patterns through directed self-assembly of ultrathin block copolymer films on topographic substrates. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124727] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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2
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Wang LS, Gopalakrishnan S, Rotello VM. Tailored Functional Surfaces Using Nanoparticle and Protein "Nanobrick" Coatings. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:10993-11006. [PMID: 30543751 DOI: 10.1021/acs.langmuir.8b03235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Surface properties are an essential feature in a wide range of functional materials. In this article, we summarize strategies developed in our group that employ nanoparticles and proteins as nanobricks to create thin-film coatings on surfaces. These coatings contain tailorable surface functionality based on the properties of the predesigned nanobricks, parlaying both the chemical and structural features of the precursor particles and proteins. This strategy is versatile, providing the rapid generation of both uniform and patterned coatings that provide "plug-and-play" customizable surfaces for materials and biomedical applications.
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Affiliation(s)
- Li-Sheng Wang
- Department of Chemistry , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Sanjana Gopalakrishnan
- Department of Chemistry , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | - Vincent M Rotello
- Department of Chemistry , University of Massachusetts , Amherst , Massachusetts 01003 , United States
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Palma M, Hardy JG, Tadayyon G, Farsari M, Wind SJ, Biggs MJ. Advances in Functional Assemblies for Regenerative Medicine. Adv Healthc Mater 2015; 4:2500-19. [PMID: 26767738 DOI: 10.1002/adhm.201500412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 08/16/2015] [Indexed: 12/17/2022]
Abstract
The ability to synthesise bioresponsive systems and selectively active biochemistries using polymer-based materials with supramolecular features has led to a surge in research interest directed towards their development as next generation biomaterials for drug delivery, medical device design and tissue engineering.
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Affiliation(s)
- Matteo Palma
- Department of Chemistry & Biochemistry School of Biological and Chemical Sciences; Queen Mary University of London; London E1 4NS UK
| | - John G. Hardy
- Department of Chemistry; Materials Science Institute; Lancaster University; Lancaster LA1 4YB UK
| | - Ghazal Tadayyon
- Centre for Research in Medical Devices (CURAM); National University of Ireland Galway; Newcastle Road Dangan Ireland
| | - Maria Farsari
- Institute of Electronic Structure and Laser; Crete Greece
| | | | - Manus J. Biggs
- Centre for Research in Medical Devices (CURAM); National University of Ireland Galway; Newcastle Road Dangan Ireland
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Ni Y, Becquart F, Adidou O, Majeste JC, Chen J, Taha M. Polystyrene supramolecular networks based on DA-AD hydrogen bonds. Des Monomers Polym 2015. [DOI: 10.1080/15685551.2015.1041081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- Yiping Ni
- Faculté des Sciences, Université de Lyon, 23 rue du dr Paul Michelon, F-42023, Saint-Etienne cedex 2, France
- CNRS, UMR 5223, Ingénierie des Matériaux Polymères, Saint-Etienne, France
- Université de Saint-Etienne, Jean Monnet, Saint-Etienne, France
| | - Frédéric Becquart
- Faculté des Sciences, Université de Lyon, 23 rue du dr Paul Michelon, F-42023, Saint-Etienne cedex 2, France
- CNRS, UMR 5223, Ingénierie des Matériaux Polymères, Saint-Etienne, France
- Université de Saint-Etienne, Jean Monnet, Saint-Etienne, France
| | - Ouissam Adidou
- Faculté des Sciences, Université de Lyon, 23 rue du dr Paul Michelon, F-42023, Saint-Etienne cedex 2, France
- CNRS, UMR 5223, Ingénierie des Matériaux Polymères, Saint-Etienne, France
- Université de Saint-Etienne, Jean Monnet, Saint-Etienne, France
| | - Jean-Charles Majeste
- Faculté des Sciences, Université de Lyon, 23 rue du dr Paul Michelon, F-42023, Saint-Etienne cedex 2, France
- CNRS, UMR 5223, Ingénierie des Matériaux Polymères, Saint-Etienne, France
- Université de Saint-Etienne, Jean Monnet, Saint-Etienne, France
| | - Jianding Chen
- Laboratory of Advanced Materials Processing, East China University of Science and Technology, 200237 Shanghai, China
| | - Mohamed Taha
- Faculté des Sciences, Université de Lyon, 23 rue du dr Paul Michelon, F-42023, Saint-Etienne cedex 2, France
- CNRS, UMR 5223, Ingénierie des Matériaux Polymères, Saint-Etienne, France
- Université de Saint-Etienne, Jean Monnet, Saint-Etienne, France
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Lin IH, Cheng CC, Chuang WT, Chen JK, Jeng US, Ko FH, Chu CW, Huang CF, Chang FC. Bioinspired assembly of functional block-copolymer nanotemplates. SOFT MATTER 2013; 9:9608-9614. [PMID: 26029768 DOI: 10.1039/c3sm51870a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A new concept on bioinspired assembly of functional diblock copolymers, capable of forming different microstructures through nucleobase-induced supramolecular interactions, has been explored. In this paper, a new series of uracil-functionalized poly(ε-caprolactone)-b-(4-vinylbenzyl uracil)s (PCL-b-PVBU) have been prepared which exhibit a high self-complementary ability in solution and solid states owing to the formation of uracil–uracil pairs by induced hierarchical self-assembly. The ordered morphologies of PCL-b-PVBU diblock copolymers changed from a lamellar, hexagonally packed cylinder to a sphere with respect to the content of the hydrogen bond segment. Moreover, we further show that the PCL segment could be easily extracted by enzymatic degradation, leading to a cylinder porous structure of long-range order, which gives a facile method for the fabrication of uracil-functionalized nanotemplates. In addition, bio-complementary PCL-b-PVBU/9-hexadecyladenine (AC16) hierarchical supramolecular complexes formed through strong cooperative hydrogen bonding between the uracil group of PVBU and the adenine group of A-C16. When the mixing ratios of PCL-b-PVBU/AC16 differ from the stoichiometric ratio, these complexes self-assemble into well-ordered lamellar and hexagonal structures; the changing morphology at different AC16 loadings reveals that the molecular structures of the PCL-b-PVBU/AC16 complexes are readily tailored.
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Affiliation(s)
- I-Hong Lin
- Institute of Applied Chemistry, National Chiao-Tung University, Hsinchu 30050, Taiwan
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Yu X, Pham JT, Subramani C, Creran B, Yeh YC, Du K, Patra D, Miranda OR, Crosby AJ, Rotello VM. Direct patterning of engineered ionic gold nanoparticles via nanoimprint lithography. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:6330-4. [PMID: 23023775 DOI: 10.1002/adma.201202776] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 08/09/2012] [Indexed: 05/16/2023]
Abstract
Gold nanoparticles are engineered for direct imprinting of stable structures. This imprinting strategy provides access to new device architectures, as demonstrated through the fabrication of a prototype photoswitchable device.
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Affiliation(s)
- Xi Yu
- Department of Chemistry, University of Massachusetts Amherst, 01003, USA
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Wu C, Wang Y, Han X, Hu X, Cheng Q, Han B, Liu Q, Ren T, He Y, Sun S, Ma H. Site-selective assembly of quantum dots on patterned self-assembled monolayers fabricated by laser direct-writing. NANOTECHNOLOGY 2012; 23:235302. [PMID: 22595703 DOI: 10.1088/0957-4484/23/23/235302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A simple and efficient route for quantum dot (QDs) patterning using self-assembled monolayers (SAMs) as templates is described. By means of a laser direct-writing (LDW) technique, SAMs of octadecylphosphonic acid formed by adsorption on native oxide layer of titanium film were patterned through laser-induced ablation of the SAM molecules. This technique allows the creation of chemical-specific patterns accompanied by slight change in the topography. Using atomic force microscopy and friction force microscopy, the dependence of feature size and characteristics on the irradiation dose was demonstrated. Upon immersion of a substrate with patterned SAMs bearing thiol as the terminal group into a dispersion of QDs resulted in the assembly of QDs on the specific thiol-terminated areas. Patterns of QDs with different photoluminescent wavelength were generated. The LDW technique, which is convenient and flexible due to its path-directed and maskless fabrication process, provided a new powerful approach for patterning materials on surfaces for various applications.
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Affiliation(s)
- Chong Wu
- National Center for Nanoscience and Technology, Graduate School of Chinese Academy of Sciences, 11 Beiyitiao, Zhongguancun, Beijing, People's Republic of China
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Zhang Y, Zimmerman SC. Azobenzene dye-coupled quadruply hydrogen-bonding modules as colorimetric indicators for supramolecular interactions. Beilstein J Org Chem 2012; 8:486-95. [PMID: 22509220 PMCID: PMC3326628 DOI: 10.3762/bjoc.8.55] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Accepted: 03/08/2012] [Indexed: 11/23/2022] Open
Abstract
The facile coupling of azobenzene dyes to the quadruply hydrogen-bonding modules 2,7-diamido-1,8-naphthyridine (DAN) and 7-deazaguanine urea (DeUG) is described. The coupling of azobenzene dye 2 to mono-amido DAN units 4, 7, and 9 was effected by classic 4-(dimethylamino)pyridine (DMAP)-catalyzed peptide synthesis with N-(3-dimethylaminopropyl)-N’-ethyl carbodiimide hydrochloride (EDC) as activating agent, affording the respective amide products 5, 8, and 10 in 60–71% yield. The amide linkage was formed through either the aliphatic or aromatic ester group of 2, allowing both the flexibility and absorption maximum to be tuned. Azobenzene dye 1 was coupled to the DeUG unit 11 by Steglich esterification to afford the product amide 12 in 35% yield. Alternatively, azobenzene dye 16 underwent a room-temperature copper-catalyzed azide–alkyne Huisgen cycloaddition with DeUG alkyne 17 to give triazole 18 in 71% yield. Azobenzene coupled DAN modules 5, 8, and 10 are bright orange–red in color, and azobenzene coupled DeUG modules 12 and 18 are orange–yellow in color. Azobenzene coupled DAN and DeUG modules were successfully used as colorimetric indicators for specific DAN–DeUG and DAN–UPy (2-ureido-4(1H)-pyrimidone) quadruply hydrogen-bonding interactions.
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Affiliation(s)
- Yagang Zhang
- Department of Chemistry, 600 South Mathews Avenue, University of Illinois, Urbana, IL 61801, USA
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Nandwana V, Fitzpatrick B, Liu Q, Solntsev KM, Yu X, Tonga GY, Eymur S, Tonga M, Cooke G, Rotello VM. Fluorescence resonance energy transfer in recognition-mediated polymer-quantum dot assemblies. Polym Chem 2012. [DOI: 10.1039/c2py20353g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Recognition-mediated assembly of quantum dot polymer conjugates with controlled morphology. Int J Mol Sci 2011; 12:6357-66. [PMID: 22016664 PMCID: PMC3189788 DOI: 10.3390/ijms12096357] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2011] [Revised: 09/20/2011] [Accepted: 09/20/2011] [Indexed: 11/16/2022] Open
Abstract
We have demonstrated a polymer mediated “bricks and mortar” method for the self-assembly of quantum dots (QDs). This strategy allows QDs to self-assemble into structured aggregates using complementary three-point hydrogen bonding. The resulting nanocomposites have distinct morphologies and inter-particle distances based on the ratio between QDs and polymer. Time resolved photoluminescence measurements showed that the optical properties of the QDs were retained after self-assembly.
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Nandwana V, Subramani C, Yeh YC, Yang B, Dickert S, Barnes MD, Tuominen MT, Rotello VM. Direct patterning of quantum dot nanostructures via electron beam lithography. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11782c] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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