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Kloberg MJ, Yu H, Groß E, Eckmann F, Restle TMF, Fässler TF, Veinot JGC, Rieger B. Surface-Anisotropic Janus Silicon Quantum Dots via Masking on 2D Silicon Nanosheets. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100288. [PMID: 34338353 DOI: 10.1002/adma.202100288] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 05/01/2021] [Indexed: 06/13/2023]
Abstract
Surface-anisotropic nanoparticles represent a new class of materials that shows potential in a variety of applications, including self-assembly, microelectronics, and biology. Here, the first synthesis of surface-anisotropic silicon quantum dots (SiQDs), obtained through masking on 2D silicon nanosheets, is presented. SiQDs are deposited on the 2D substrate, thereby exposing only one side of the QDs, which is functionalized through well-established hydrosilylation procedures. The UV-sensitive masking substrate is removed through UV-irradiation, which simultaneously initiates the hydrosilylation of a second substrate, thereby introducing a second functional group to the other side of the now free-standing SiQDs. This renders surface-anisotropic SiQDs that have two different functional groups on either side of the particle. This method can be used to introduce a variety of functional groups including hydrophilic and hydrophobic substrates, while the unique optoelectronic properties of the SiQDs remain unaffected. The anisotropic morphology of the QDs is confirmed through the aggregation behavior of amphiphilic Janus SiQDs at the interface of water and hexane. Additionally, anisotropic SiQDs are used to produce the first controlled (sub)monolayer of SiQDs on a gold wafer.
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Affiliation(s)
- Marc Julian Kloberg
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85758, Garching, Germany
| | - Haoyang Yu
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Elisabeth Groß
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85758, Garching, Germany
| | - Felix Eckmann
- Chair of Experimental Semiconductor Physics II, Walter Schottky Institute and Physics Department, Technical University of Munich, Am Coulombwall 4, 85748, Garching, Germany
| | - Tassilo M F Restle
- Chair for Inorganic Chemistry with Focus on New Materials, Department of Chemistry, Technische Universität München, Lichtenbergstraße 4, D-85747, Garching, Germany
| | - Thomas F Fässler
- Chair for Inorganic Chemistry with Focus on New Materials, Department of Chemistry, Technische Universität München, Lichtenbergstraße 4, D-85747, Garching, Germany
| | - Jonathan G C Veinot
- Department of Chemistry, University of Alberta, Edmonton, Alberta, T6G 2G2, Canada
| | - Bernhard Rieger
- WACKER-Chair of Macromolecular Chemistry, Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85758, Garching, Germany
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2
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Dedeo CL, Teschke CM, Alexandrescu AT. Keeping It Together: Structures, Functions, and Applications of Viral Decoration Proteins. Viruses 2020; 12:v12101163. [PMID: 33066635 PMCID: PMC7602432 DOI: 10.3390/v12101163] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/09/2020] [Accepted: 10/11/2020] [Indexed: 12/14/2022] Open
Abstract
Decoration proteins are viral accessory gene products that adorn the surfaces of some phages and viral capsids, particularly tailed dsDNA phages. These proteins often play a "cementing" role, reinforcing capsids against accumulating internal pressure due to genome packaging, or environmental insults such as extremes of temperature or pH. Many decoration proteins serve alternative functions, including target cell recognition, participation in viral assembly, capsid size determination, or modulation of host gene expression. Examples that currently have structures characterized to high-resolution fall into five main folding motifs: β-tulip, β-tadpole, OB-fold, Ig-like, and a rare knotted α-helical fold. Most of these folding motifs have structure homologs in virus and target cell proteins, suggesting horizontal gene transfer was important in their evolution. Oligomerization states of decoration proteins range from monomers to trimers, with the latter most typical. Decoration proteins bind to a variety of loci on capsids that include icosahedral 2-, 3-, and 5-fold symmetry axes, as well as pseudo-symmetry sites. These binding sites often correspond to "weak points" on the capsid lattice. Because of their unique abilities to bind virus surfaces noncovalently, decoration proteins are increasingly exploited for technology, with uses including phage display, viral functionalization, vaccination, and improved nanoparticle design for imaging and drug delivery. These applications will undoubtedly benefit from further advances in our understanding of these versatile augmenters of viral functions.
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3
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Song X, Liu C, Liu X, Liu S. Investigating Polymer Transformation during the Encapsulation of Metal Nanoparticles by Polystyrene- b-poly(acrylic acid) in Colloids. ACS APPLIED MATERIALS & INTERFACES 2020; 12:3969-3975. [PMID: 31867959 DOI: 10.1021/acsami.9b19264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The colloidal self-assembly method holds great potential for large-scale synthesis at low expense of energy as compared to methods that assemble molecules by manipulating building blocks one after another. The development of the colloidal method, however, requires careful and intelligent design of the single building blocks as numerous degrees of freedom like isotropic nanoparticles (NPs) generally form highly repetitive, lattice-like structures or random aggregates upon self-assembly because of their identical surfaces throughout. Specifically, it is an interesting direction that if one can precisely control the localization of surface functionalities (i.e., ligands or polymer shells) on the NPs, a plethora of self-assembled structures (e.g., chains, sheets, rings, twisted, and even staircase structures) would be possible. Despite numerous simulations and modeling for this type of NPs, just a handful literature studies reported the controlling synthesis of metal-polymer patchy NPs through polymer shell shrinking/transformation in colloids. However, there are no detailed control experiments showing the mechanism of this polymer shell shrinking or transformation phenomenon. With the absence of a fundamental understanding of the driving forces and interactions between metal NP surface ligands and the hydrophobic polymer shell domain, simple and efficient design and synthesis of unique metal-polymer hybrid nanostructures are still obscure. Here, we report a detailed mechanistic study on the polymer shell transformation by using different types of surface ligands in encapsulation of metal NPs by polymer shells. The polymer shell transformation dynamic is studied after postheating treatment. The polymer shell transformation/shrinking on the metal NP surface depends on its surface ligand size being applied in the encapsulation step (polymer-ligand hydrophobic interaction effect). Longer-chain ligands provide stronger interactions between NPs and the hydrophobic domain of the polymer shell, which inhibits the polymer shell transformation. In contrast, short-chain ligands lead to weaker interactions, which assist in the polymer shell transformation. By understanding the underlying mechanisms, many new types of NPs, such as metal-polymer core-shell NPs, metal-polymer Janus NPs, silica-metal-polymer hybrid NPs, and silica-metal-polymer flower-like NPs have been synthesized for the first time. A new bottom-up platform for the synthesis of anisotropic NPs with the ability to control the patches in a precise manner has been created, which will benefit both nanotechnology (such as self-assembly in the nanoscale) and applications such as selective detection of the underlying ligands on the metal surface by using a surface-enhanced Raman spectrum study.
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Affiliation(s)
- Xiaohui Song
- Department of Material Science and Engineering , University of California at Berkeley , Berkeley , California 94720 , United States
- Department of Chemistry and Biological Chemistry , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Cuicui Liu
- Department of Chemistry and Biological Chemistry , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
| | - Xiaotao Liu
- Department of Material Science and Engineering , University of California at Berkeley , Berkeley , California 94720 , United States
| | - Songlin Liu
- Department of Chemistry and Biological Chemistry , Nanyang Technological University , 50 Nanyang Avenue , Singapore 639798 , Singapore
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4
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Li R, Wang H, Song Y, Lin YN, Dong M, Shen Y, Khan S, Zhang S, Fan J, Zhang F, Su L, Wooley KL. In Situ Production of Ag/Polymer Asymmetric Nanoparticles via a Powerful Light-Driven Technique. J Am Chem Soc 2019; 141:19542-19545. [DOI: 10.1021/jacs.9b10205] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Richen Li
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Hai Wang
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Yue Song
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Yen-Nan Lin
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
- College of Medicine, Texas A&M University, Bryan, Texas 77807, United States
| | - Mei Dong
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Yidan Shen
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Sarosh Khan
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Shiyi Zhang
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Jingwei Fan
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Fuwu Zhang
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Lu Su
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Karen L. Wooley
- Departments of Chemistry, Chemical Engineering and Materials Science & Engineering, Texas A&M University, College Station, Texas 77842, United States
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5
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Chang F, van Ravensteijn BGP, Lacina KS, Kegel WK. Bifunctional Janus Spheres with Chemically Orthogonal Patches. ACS Macro Lett 2019; 8:714-718. [PMID: 35619528 DOI: 10.1021/acsmacrolett.9b00193] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Bifunctional Janus particles with patches carrying orthogonal surface functionalities that can be independently modified are widely seen as promising building blocks for the bottom-up assembly of functional materials due to their full compositional and geometrical programmability. However, synthesis of these colloids remains an elusive task as current scalable procedures are generally limited to monofunctional particles only. Herein, a scalable bulk wet-chemical synthetic method for fabricating bifunctional Janus particles following a two-step dispersion polymerization is developed. Patch formation on these colloids is driven by the spontaneous phase separation between a brominated outer shell and poly(propargyl acrylate) (p(PA)), formed after the seed particles were swollen with the corresponding monomer. The size ratio between the two patches is readily tunable by controlling the volumetric ratio between the feeding monomers. The distinct patches of these Janus particles carry chemical handles facilitating independent and orthogonal surface modification using Atom Transfer Radical Polymerization (ATRP) and thiol-yne Click chemistry for the brominated and alkyne-containing patches, respectively. The presented route toward bifunctional patchy spheres provides a versatile starting point for the development of bifunctional colloidal particles with tailored directional properties.
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Affiliation(s)
- Fuqiang Chang
- Van’t Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CH Utrecht, The Netherlands
| | | | - Kanvaly S. Lacina
- Van’t Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CH Utrecht, The Netherlands
| | - Willem K. Kegel
- Van’t Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute for Nanomaterials Science, Utrecht University, 3584 CH Utrecht, The Netherlands
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6
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7
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Liu N, Ma CH, Sun RW, Huang J, Li C, Wu ZQ. Facile synthesis and chiral recognition of block and star copolymers containing stereoregular helical poly(phenyl isocyanide) and polyethylene glycol blocks. Polym Chem 2017. [DOI: 10.1039/c7py00028f] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A new Pd(ii) initiator bearing an alkyne headgroup was designed and synthesized.
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Affiliation(s)
- Na Liu
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei University of Technology
- Hefei 230009
- China
| | - Cui-Hong Ma
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei University of Technology
- Hefei 230009
- China
| | - Rui-Wen Sun
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei University of Technology
- Hefei 230009
- China
| | - Jian Huang
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei University of Technology
- Hefei 230009
- China
| | - Chonglong Li
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei University of Technology
- Hefei 230009
- China
| | - Zong-Quan Wu
- Department of Polymer Science and Engineering
- School of Chemistry and Chemical Engineering and Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei University of Technology
- Hefei 230009
- China
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8
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Walker D, Singh DP, Fischer P. Capture of 2D Microparticle Arrays via a UV-Triggered Thiol-yne "Click" Reaction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:9846-9850. [PMID: 27717081 DOI: 10.1002/adma.201603586] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 08/04/2016] [Indexed: 05/22/2023]
Abstract
Immobilization of colloidal assemblies onto solid supports via a fast UV-triggered click-reaction is achieved. Transient assemblies of microparticles and colloidal materials can be captured and transferred to solid supports. The technique does not require complex reaction conditions, and is compatible with a variety of particle assembly methods.
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Affiliation(s)
- Debora Walker
- Max-Planck-Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Dhruv P Singh
- Max-Planck-Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
| | - Peer Fischer
- Max-Planck-Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
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9
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Zhang Y, Miao L, Wang HF. Fluorescence Anisotropy as a Reliable Discrimination of Ligand-Asymmetric and Symmetric Mn-Doped ZnS Quantum Dots. Anal Chem 2016; 88:9714-9719. [DOI: 10.1021/acs.analchem.6b02614] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu Zhang
- Research Center for Analytical
Sciences, College of Chemistry, Key
Laboratory of Biosensing, Molecular Recognition, State Key Laboratory
of Medicinal Chemical Biology and ‡Collaborative Innovation Center of Chemical
Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Lin Miao
- Research Center for Analytical
Sciences, College of Chemistry, Key
Laboratory of Biosensing, Molecular Recognition, State Key Laboratory
of Medicinal Chemical Biology and ‡Collaborative Innovation Center of Chemical
Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - He-Fang Wang
- Research Center for Analytical
Sciences, College of Chemistry, Key
Laboratory of Biosensing, Molecular Recognition, State Key Laboratory
of Medicinal Chemical Biology and ‡Collaborative Innovation Center of Chemical
Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China
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10
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Affiliation(s)
- Laura C. Bradley
- Department of Chemical and
Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Kathleen J. Stebe
- Department of Chemical and
Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Daeyeon Lee
- Department of Chemical and
Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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11
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Shi D, Wang F, Wang Y. Janus Nanostructures for Biomedical Applications: Dual-Surfaces of Single Particle for Multifunctionality. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2016. [DOI: 10.1007/978-3-319-22861-7_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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12
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Zhang F, Zhang S, Pollack SF, Li R, Gonzalez AM, Fan J, Zou J, Leininger SE, Pavía-Sanders A, Johnson R, Nelson LD, Raymond JE, Elsabahy M, Hughes DMP, Lenox MW, Gustafson TP, Wooley KL. Improving Paclitaxel Delivery: In Vitro and In Vivo Characterization of PEGylated Polyphosphoester-Based Nanocarriers. J Am Chem Soc 2015; 137:2056-66. [DOI: 10.1021/ja512616s] [Citation(s) in RCA: 157] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Laura D. Nelson
- Department
of Pediatric Research, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | | | - Mahmoud Elsabahy
- Department
of Pharmaceutics, and Assiut International Center of Nanomedicine,
Al-Rajhy Liver Hospital, Assiut University, 71515 Assiut, Egypt
| | - Dennis M. P. Hughes
- Department
of Pediatric Research, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
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13
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Albrecht M, Lippach A, Exner MP, Jerbi J, Springborg M, Budisa N, Wenz G. Site-specific conjugation of 8-ethynyl-BODIPY to a protein by [2 + 3] cycloaddition. Org Biomol Chem 2015; 13:6728-36. [DOI: 10.1039/c5ob00505a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We report a straightforward synthesis of 8-ethynyl-BODIPY derivatives and their potential as fluorescent labeling compounds using an alkyne–azide click chemistry approach.
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Affiliation(s)
- Marcel Albrecht
- Organic Macromolecular Chemistry
- Campus Saarbrücken C4.2
- Saarland University
- D-66123 Saarbrücken
- Germany
| | - Andreas Lippach
- Organic Macromolecular Chemistry
- Campus Saarbrücken C4.2
- Saarland University
- D-66123 Saarbrücken
- Germany
| | | | - Jihene Jerbi
- Physical and Theoretical Chemistry
- Campus Saarbrücken B2.2
- Saarland University
- D-66123 Saarbrücken
- Germany
| | - Michael Springborg
- Physical and Theoretical Chemistry
- Campus Saarbrücken B2.2
- Saarland University
- D-66123 Saarbrücken
- Germany
| | - Nediljko Budisa
- Department of Chemistry-Biocatalysis
- TU Berlin
- D-10623 Berlin
- Germany
| | - Gerhard Wenz
- Organic Macromolecular Chemistry
- Campus Saarbrücken C4.2
- Saarland University
- D-66123 Saarbrücken
- Germany
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14
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Zhang W, He J, Bao H, Dong X. Polymeric Janus nanoparticles from triblock terpolymer micellar dimers. RSC Adv 2015. [DOI: 10.1039/c5ra17384a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Well-defined polymeric Janus nanoparticles have been synthesized by a novel method of combining self-assembly of simple ABC linear triblock terpolymers into nanostructured dimers and crosslinking of the conjunction between the opposite hemispheres.
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Affiliation(s)
- Wei Zhang
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai
- China
| | - Jinxin He
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai
- China
| | - Haifeng Bao
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai
- China
| | - Xia Dong
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai
- China
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15
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Hammer BAG, Moritz R, Stangenberg R, Baumgarten M, Müllen K. The polar side of polyphenylene dendrimers. Chem Soc Rev 2015; 44:4072-90. [DOI: 10.1039/c4cs00245h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The site-specific functionalization of poly(phenylene) dendrimers can produce macromolecules with a range of different polarities.
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Affiliation(s)
| | - Ralf Moritz
- Max-Planck-Institut für Polymerforschung
- 55128 Mainz
- Germany
| | | | | | - Klaus Müllen
- Max-Planck-Institut für Polymerforschung
- 55128 Mainz
- Germany
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16
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Jia Z, Bobrin VA, Truong NP, Gillard M, Monteiro MJ. Multifunctional Nanoworms and Nanorods through a One-Step Aqueous Dispersion Polymerization. J Am Chem Soc 2014; 136:5824-7. [DOI: 10.1021/ja500092m] [Citation(s) in RCA: 112] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhongfan Jia
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane QLD 4072, Australia
| | - Valentin A. Bobrin
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane QLD 4072, Australia
| | - Nghia P. Truong
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane QLD 4072, Australia
| | - Marianne Gillard
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane QLD 4072, Australia
| | - Michael J. Monteiro
- Australian Institute for
Bioengineering and Nanotechnology, The University of Queensland, St Lucia, Brisbane QLD 4072, Australia
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17
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Mathew A, Natarajan G, Lehtovaara L, Häkkinen H, Kumar RM, Subramanian V, Jaleel A, Pradeep T. Supramolecular functionalization and concomitant enhancement in properties of Au(25) clusters. ACS NANO 2014; 8:139-52. [PMID: 24313537 DOI: 10.1021/nn406219x] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
We present a versatile approach for tuning the surface functionality of an atomically precise 25 atom gold cluster using specific host-guest interactions between β-cyclodextrin (CD) and the ligand anchored on the cluster. The supramolecular interaction between the Au25 cluster protected by 4-(t-butyl)benzyl mercaptan, labeled Au25SBB18, and CD yielding Au25SBB18∩CDn (n = 1, 2, 3, and 4) has been probed experimentally using various spectroscopic techniques and was further analyzed by density functional theory calculations and molecular modeling. The viability of our method in modifying the properties of differently functionalized Au25 clusters is demonstrated. Besides modifying their optoelectronic properties, the CD moieties present on the cluster surface provide enhanced stability and optical responses which are crucial in view of the potential applications of these systems. Here, the CD molecules act as an umbrella which protects the fragile cluster core from the direct interaction with many destabilizing agents such as metal ions, ligands, and so on. Apart from the inherent biocompatibility of the CD-protected Au clusters, additional capabilities acquired by the supramolecular functionalization make such modified clusters preferred materials for applications, including those in biology.
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Affiliation(s)
- Ammu Mathew
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras , Chennai 600036, India
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18
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19
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Tan LH, Xing H, Chen H, Lu Y. Facile and efficient preparation of anisotropic DNA-functionalized gold nanoparticles and their regioselective assembly. J Am Chem Soc 2013; 135:17675-8. [PMID: 24148071 PMCID: PMC3902043 DOI: 10.1021/ja408033e] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Anisotropic nanoparticles can provide considerable opportunities for assembly of nanomaterials with unique structures and properties. However, most reported anisotropic nanoparticles are either difficult to prepare or to functionalize. Here we report a facile one-step solution-based method to prepare anisotropic DNA-functionalized gold nanoparticles (a-DNA-AuNP) with 96% yield and with high DNA density (120 ± 20 strands on the gold hemisphere). The method is based on the competition between a thiolated hydrophilic DNA and a thiolated hydrophobic phospholipid and has been applied to prepare a-DNA-AuNPs of different sizes and with a variety of DNA sequences. In addition, DNA strands on the a-DNA-AuNPs can be exchanged with other DNA strands with a different sequence. The anisotropic nature of the a-DNA-AuNPs allows regioselective hetero- and homonuclear assembly with high monodispersity, as well as regioselective functionalization of two different DNA strands for more diverse applications.
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Affiliation(s)
- Li Huey Tan
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana IL 61801
| | - Hang Xing
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana IL 61801
| | - Hongyu Chen
- Division of Chemistry & Biological Chemistry, Nanyang Technological University, Singapore 637371
| | - Yi Lu
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana IL 61801
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20
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Jung CW, Jalani G, Ko J, Choo J, Lim DW. Synthesis, characterization, and directional binding of anisotropic biohybrid microparticles for multiplexed biosensing. Macromol Rapid Commun 2013; 35:56-65. [PMID: 24395747 DOI: 10.1002/marc.201300652] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Revised: 10/13/2013] [Indexed: 12/31/2022]
Abstract
Anisotropic microarchitectures with different physicochemical properties have been developed as advanced materials for challenging industrial and biomedical applications including switchable displays, multiplexed biosensors and bioassays, spatially-controlled drug delivery systems, and tissue engineering scaffolds. In this study, anisotropic biohybrid microparticles (MPs) spatio-selectively conjugated with two different antibodies (Abs) are first developed for fluorescence-based, multiplexed sensing of biological molecules. Poly(acrylamide-co-acrylic acid) is chemically modified with maleimide- or acetylene groups to introduce different targeting biological moieties into each compartment of anisotropic MPs. Modified polymer solutions containing two different fluorescent dyes are separately used for electrohydrodynamic co-jetting with side-by-side needle geometry. The anisotropic MPs are chemically stabilized by thermal imidization, followed by bioconjugation of two different sets of polyclonal Abs with two individual compartments via maleimide-thiol coupling reaction and Huisgen 1,3-dipolar cycloaddition. Finally, two compartments of the anisotropic biohybrid MPs are spatio-selectively associated with the respective monoclonal Ab-immobilized substrate in the presence of the antigen by sandwich-type immunocomplex formation, resulting in their ordered orientation due to the spatio-specific molecular interaction, as confirmed by confocal laser scanning microscopy. In conclusion, anisotropic biohybrid MPs capable of directional binding have great potential as a new fluorescence-based multiplexing biosensing system.
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Affiliation(s)
- Chan Woo Jung
- Department of Bionano Engineering, College of Engineering Sciences, Hanyang University, ERICA Campus, Ansan, 426-791, Korea
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21
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Shen Y, Zhang S, Zhang F, Loftis A, Pavía-Sanders A, Zou J, Fan J, Taylor JSA, Wooley KL. Polyphosphoester-based cationic nanoparticles serendipitously release integral biologically-active components to serve as novel degradable inducible nitric oxide synthase inhibitors. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:5609-14. [PMID: 23999874 PMCID: PMC4404032 DOI: 10.1002/adma.201302842] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Indexed: 05/16/2023]
Abstract
A degradable polyphosphoester (PPE)-based cationic nanoparticle (cSCK), which is integrated constructed as a novel degradable drug device, demonstrates surprisingly efficient inhibition of inducible nitric oxide synthase (iNOS) transcription, and eventually inhibits nitric oxide (NO) over-production, without loading of any specific therapeutic drugs. This system may serve as a promising anti-inflammatory agent toward the treatment of acute lung injury.
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Affiliation(s)
- Yuefei Shen
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Shiyi Zhang
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA, Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Fuwu Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Alexander Loftis
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Adriana Pavía-Sanders
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Jiong Zou
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Jingwei Fan
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - John-Stephen A. Taylor
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
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22
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Peng B, Chu X, Li Y, Li D, Chen Y, Zhao J. Adsorption kinetics and stability of poly(ethylene oxide)-block-polystyrene micelles on polystyrene surface. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.08.064] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Li J, Wang L, Benicewicz BC. Synthesis of Janus nanoparticles via a combination of the reversible click reaction and "grafting to" strategies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:11547-11553. [PMID: 24001363 DOI: 10.1021/la401990d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A critical challenge in nanoparticle functionalization has been the preparation of polymer-grafted asymmetric (Janus) nanoparticles (diameter < 100 nm). We describe a robust and cyclic method involving a reversible click reaction and "grafting to" strategies to synthesize such nanoparticles. Mechanochemistry was used in a protection-deprotection process to separate nanoparticles cleanly that were anchored to larger particles, and the recovered azide-functionalized larger particles could be recycled as face-blocking moieties. With this combination of strategies, we prepared 15 nm silica nanoparticles that were partially functionalized with poly(methyl methacrylate). Additionally, the unique self-assembly behaviors of the resultant Janus nanoparticles were investigated in different solvents at different concentrations.
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Affiliation(s)
- Junting Li
- Department of Chemistry and Biochemistry, University of South Carolina , Columbia, South Carolina 29208, United States
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24
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Ding L, Qiu J, Lu R, Zheng X, An J. Hyperbranched polyphosphoesters with reactive end groups synthesized via acyclic diene metathesis polymerization and their transformation to crosslinked nanoparticles. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26845] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Liang Ding
- Department of Polymer Materials and Engineering; School of Materials Engineering, Yancheng Institute of Technology; Yancheng 224051 People's Republic of China
| | - Jun Qiu
- Department of Polymer Materials and Engineering; School of Materials Engineering, Yancheng Institute of Technology; Yancheng 224051 People's Republic of China
| | - Rong Lu
- Department of Polymer Materials and Engineering; School of Materials Engineering, Yancheng Institute of Technology; Yancheng 224051 People's Republic of China
| | - Xueqin Zheng
- Department of Polymer Materials and Engineering; School of Materials Engineering, Yancheng Institute of Technology; Yancheng 224051 People's Republic of China
| | - Jing An
- Department of Polymer Materials and Engineering; School of Materials Engineering, Yancheng Institute of Technology; Yancheng 224051 People's Republic of China
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25
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Zhang F, Elsabahy M, Zhang S, Lin LY, Zou J, Wooley KL. Shell crosslinked knedel-like nanoparticles for delivery of cisplatin: effects of crosslinking. NANOSCALE 2013; 5:3220-3225. [PMID: 23474773 DOI: 10.1039/c3nr34320k] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Polymeric micelles and shell crosslinked knedel-like (SCK) nanoparticles were loaded with up to 48% (w/w) cisplatin. These spherical cisplatin-loaded nanoparticles displayed sustained platinum release over 5 days in PBS, enhanced stability over free cisplatin in aqueous milieu, and significant antitumor activity in vitro against two cancer cell lines.
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Affiliation(s)
- Fuwu Zhang
- Department of Chemistry, Laboratory for Synthetic - Biologic Interactions, Texas A&M University, P.O. Box 30012, 3255 TAMU, College Station, Texas 77842-3012, USA
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26
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Walther A, Müller AHE. Janus Particles: Synthesis, Self-Assembly, Physical Properties, and Applications. Chem Rev 2013; 113:5194-261. [DOI: 10.1021/cr300089t] [Citation(s) in RCA: 1328] [Impact Index Per Article: 120.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Andreas Walther
- DWI at RWTH Aachen University − Institute for Interactive Materials Research, D-52056 Aachen, Germany
| | - Axel H. E. Müller
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, D-55099 Mainz,
Germany
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27
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Zhang S, Zou J, Zhang F, Elsabahy M, Felder S, Zhu J, Pochan DJ, Wooley KL. Rapid and versatile construction of diverse and functional nanostructures derived from a polyphosphoester-based biomimetic block copolymer system. J Am Chem Soc 2012; 134:18467-74. [PMID: 23092249 PMCID: PMC3500909 DOI: 10.1021/ja309037m] [Citation(s) in RCA: 142] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A rapid and efficient approach for the preparation and modification of a versatile class of functional polymer nanoparticles has been developed, for which the entire engineering process from small molecules to polymers to nanoparticles bypasses typical slow and inefficient procedures and rather employs a series of steps that capture fully the "click" chemistry concepts that have greatly facilitated the preparation of complex polymer materials over the past decade. The construction of various nanoparticles with functional complexity from a versatile platform is a challenging aim to provide materials for fundamental studies and also optimization toward a diverse range of applications. In this paper, we demonstrate the rapid and facile preparation of a family of nanoparticles with different surface charges and functionalities based on a biodegradable polyphosphoester block copolymer system. From a retrosynthetic point of view, the nonionic, anionic, cationic, and zwitterionic micelles with hydrodynamic diameters between 13 and 21 nm and great size uniformity were quickly formed by suspending, independently, four amphiphilic diblock polyphosphoesters into water, which were functionalized from the same parental hydrophobic-functional AB diblock polyphosphoester by click-type thiol-yne reactions. The well-defined (PDI < 1.2) hydrophobic-functional AB diblock polyphosphoester was synthesized by an ultrafast (<5 min) organocatalyzed ring-opening polymerization in a two-step, one-pot manner with the quantitative conversions of two kinds of cyclic phospholane monomers. The whole programmable process starting from small molecules to nanoparticles could be completed within 6 h, as the most rapid approach for the anionic and nonionic nanoparticles, although the cationic and zwitterionic nanoparticles required ca. 2 days due to purification by dialysis. The micelles showed high biocompatibility, with even the cationic micelles exhibiting a 6-fold lower cytotoxicity toward RAW 264.7 mouse macrophage cells, as compared to the commercial transfection agent Lipofectamine.
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Affiliation(s)
- Shiyi Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, 63130, USA
| | - Jiong Zou
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Fuwu Zhang
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Mahmoud Elsabahy
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt
| | - Simcha Felder
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
| | - Jiahua Zhu
- Department of Materials Science and Engineering, University of Delaware
| | - Darrin J. Pochan
- Department of Materials Science and Engineering, University of Delaware
| | - Karen L. Wooley
- Department of Chemistry, Department of Chemical Engineering, Laboratory for Synthetic-Biologic Interactions, Texas A&M University, P.O. BOX 30012, 3255 TAMU, College Station, Texas, 77842, USA
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28
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Fadida T, Lellouche JP. Preparation and characterization of composites built of poly(N-benzophenoyl methacrylamide-co-N-hydroxyethyl acrylamide) cores and silica raspberry-like shells with dual orthogonal functionality. J Colloid Interface Sci 2012; 386:167-73. [DOI: 10.1016/j.jcis.2012.07.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 07/03/2012] [Accepted: 07/09/2012] [Indexed: 10/28/2022]
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29
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Li A, Luehmann HP, Sun G, Samarajeewa S, Zou J, Zhang S, Zhang F, Welch MJ, Liu Y, Wooley KL. Synthesis and in vivo pharmacokinetic evaluation of degradable shell cross-linked polymer nanoparticles with poly(carboxybetaine) versus poly(ethylene glycol) surface-grafted coatings. ACS NANO 2012; 6:8970-82. [PMID: 23043240 PMCID: PMC3485677 DOI: 10.1021/nn303030t] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Nanoparticles with tunable pharmacokinetics are desirable for various biomedical applications. Poly(ethylene glycol) (PEG) is well-known to create "stealth" effects to stabilize and extend the blood circulation of nanoparticles. In this work, poly(carboxybetaine) (PCB), a new nonfouling polymer material, was incorporated as surface-grafted coatings, conjugated onto degradable shell cross-linked knedel-like nanoparticles (dSCKs) composed of poly(acrylic acid)-based shells and poly(lactic acid) cores, to compare the in vivo pharmacokinetics to their PEG-functionalized analogues. A series of five dSCKs was prepared from amphiphilic block copolymers, having different numbers and lengths of either PEG or PCB grafts, by supramolecular assembly in water followed by shell cross-linking, and then studied by a lactate assay to confirm their core hydrolytic degradabilities. Each dSCK was also conjugated with 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid macrocyclic chelators and tyramine moieties to provide for (64)Cu and/or radiohalogen labeling. The high specific activity of (64)Cu radiolabeling ensured nanogram administration of dSCKs for in vivo evaluation of their pharmacokinetics. Biodistribution studies demonstrated comparable in vivo pharmacokinetic profiles of PCB-grafted dSCKs to their PEG-conjugated counterparts. These results indicated that PCB-functionalized dSCKs have great potential as a theranostic platform for translational research.
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Affiliation(s)
- Ang Li
- Department of Chemistry and Department of Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Hannah P. Luehmann
- Department of Radiology, Washington University in St. Louis, Missouri 63110, United States
| | - Guorong Sun
- Department of Chemistry and Department of Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Sandani Samarajeewa
- Department of Chemistry and Department of Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Jiong Zou
- Department of Chemistry and Department of Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Shiyi Zhang
- Department of Chemistry and Department of Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Fuwu Zhang
- Department of Chemistry and Department of Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Michael J. Welch
- Department of Radiology, Washington University in St. Louis, Missouri 63110, United States
| | - Yongjian Liu
- Department of Radiology, Washington University in St. Louis, Missouri 63110, United States
| | - Karen L. Wooley
- Department of Chemistry and Department of Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
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30
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Yue K, Liu C, Guo K, Yu X, Huang M, Li Y, Wesdemiotis C, Cheng SZD, Zhang WB. Sequential “Click” Approach to Polyhedral Oligomeric Silsesquioxane-Based Shape Amphiphiles. Macromolecules 2012. [DOI: 10.1021/ma3013256] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kan Yue
- Department of Polymer Science,
College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United
States
| | - Chang Liu
- Department of Polymer Science,
College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United
States
| | - Kai Guo
- Department of Polymer Science,
College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United
States
| | - Xinfei Yu
- Department of Polymer Science,
College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United
States
| | - Mingjun Huang
- Department of Polymer Science,
College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United
States
| | - Yiwen Li
- Department of Polymer Science,
College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United
States
| | - Chrys Wesdemiotis
- Department of Polymer Science,
College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United
States
- Department of Chemistry, The University of Akron, Akron, Ohio 44325-3601, United
States
| | - Stephen Z. D. Cheng
- Department of Polymer Science,
College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United
States
| | - Wen-Bin Zhang
- Department of Polymer Science,
College of Polymer Science and Polymer Engineering, The University of Akron, Akron, Ohio 44325-3909, United
States
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31
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Xu H, Liu X, Su G, Zhang B, Wang D. Electrostatic repulsion-controlled formation of polydopamine-gold Janus particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:13060-13065. [PMID: 22905694 DOI: 10.1021/la302394e] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Polydopamine (PDA)-Au Janus particles were obtained by simply adding HAuCl(4) to a PDA particle suspension, prepared via self-polymerization of dopamine in basic solution at room temperature. The structures of the PDA-Au particles are readily controlled by electrostatic repulsion between the constituent particles, which can be realized simply via adjusting the environmental pH. PDA-Au Janus particles are formed only in a narrow pH range of 2.5-3.0 due to the properly enhanced electrostatic repulsion between the Au particles growing on as-prepared PDA particles and between the Au and PDA particles. The obtained PDA-Au Janus particles can become interfacially active and self-assemble at oil/water interfaces as a result of spatially well-separated hydrophilic (PDA) and hydrophobic (Au) domains on the surfaces, reminiscent of amphiphilic molecules.
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Affiliation(s)
- Haolan Xu
- Ian Wark Research Institute, University of South Australia, SA 5095, Australia.
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32
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Gröschel AH, Walther A, Löbling TI, Schmelz J, Hanisch A, Schmalz H, Müller AHE. Facile, Solution-Based Synthesis of Soft, Nanoscale Janus Particles with Tunable Janus Balance. J Am Chem Soc 2012; 134:13850-60. [DOI: 10.1021/ja305903u] [Citation(s) in RCA: 229] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- André H. Gröschel
- Makromolekulare Chemie II, Universität Bayreuth, D-95440 Bayreuth, Germany
| | | | - Tina I. Löbling
- Makromolekulare Chemie II, Universität Bayreuth, D-95440 Bayreuth, Germany
| | - Joachim Schmelz
- Makromolekulare Chemie II, Universität Bayreuth, D-95440 Bayreuth, Germany
| | - Andreas Hanisch
- Makromolekulare Chemie II, Universität Bayreuth, D-95440 Bayreuth, Germany
| | - Holger Schmalz
- Makromolekulare Chemie II, Universität Bayreuth, D-95440 Bayreuth, Germany
| | - Axel H. E. Müller
- Makromolekulare Chemie II, Universität Bayreuth, D-95440 Bayreuth, Germany
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33
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Chen Q, Bae SC, Granick S. Staged Self-Assembly of Colloidal Metastructures. J Am Chem Soc 2012; 134:11080-3. [DOI: 10.1021/ja303434d] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qian Chen
- Department of Materials Science
and Engineering, ‡Department of Physics, and §Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United
States
| | - Sung Chul Bae
- Department of Materials Science
and Engineering, ‡Department of Physics, and §Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United
States
| | - Steve Granick
- Department of Materials Science
and Engineering, ‡Department of Physics, and §Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United
States
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34
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Zhang H, Liu Y, Yao D, Yang B. Hybridization of inorganic nanoparticles and polymers to create regular and reversible self-assembly architectures. Chem Soc Rev 2012; 41:6066-88. [PMID: 22641116 DOI: 10.1039/c2cs35038f] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Inorganic nanoparticles (NPs) with diversified functionalities are promising candidates in future optoelectronic and biomedical applications, which greatly depend on the capability to arrange NPs into higher-order architectures in a controllable way. This issue is considered to be solved by means of self-assembly. NPs can participate in self-assembly in different manners, such as smart self-organization with blended molecules, as the carriers of host molecules for assembly and disassembly with guest molecules, as netpoints to endow the architectures specific functionalities, and so forth. To enhance the structural stability of the as-prepared assembly architectures, polymers have been utilized to create NP-polymer composites. Meanwhile, such a strategy also demonstrates the possibility of integrating the functionalities of NPs and/or polymers by forming regular architectures. The emerging interest in the current optoelectronic and biological areas strongly demands intelligent nanocomposites, which are produced by combination of the excellent functionalities of NPs and the responsiveness of polymers. On the basis of the recent progress in fabricating NP-polymer composites, this critical review summarizes the development of new methods for fabricating regular self-assembly architectures, highlights the reversible assembly and disassembly behavior, and indicates the potential applications.
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Affiliation(s)
- Hao Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China
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35
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Shrestha R, Shen Y, Pollack KA, Taylor JSA, Wooley KL. Dual peptide nucleic acid- and peptide-functionalized shell cross-linked nanoparticles designed to target mRNA toward the diagnosis and treatment of acute lung injury. Bioconjug Chem 2012; 23:574-85. [PMID: 22372643 PMCID: PMC3321742 DOI: 10.1021/bc200629f] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this work, multifunctional biosynthetic hybrid nanostructures were prepared and studied for their potential utility in the recognition and inhibition of mRNA sequences for inducible nitric oxide synthase (iNOS), which are overexpressed at sites of inflammation, such as in cases of acute lung injury. Shell cross-linked knedel-like polymer nanoparticles (SCKs) that present peptide nucleic acids, for binding to complementary mRNAs, and cell penetrating peptides (CPPs), to gain cell entry, along with fluorescent labels and sites for radiolabeling, were prepared by a series of robust, efficient, and versatile synthetic steps that proceeded from monomers to polymers to functional nanoparticles. Amphiphilic block graft copolymers having combinations of methoxy- and thioacetyl-terminated poly(ethylene glycol) (PEG) and DOTA-lysine units grafted from the backbone of poly(acrylic acid) (PAA) and extending with a backbone segment of poly(octadecyl acrylate-co-decyl acrylate) (P(ODA-co-DA)) were prepared by a combination of reversible addition-fragmentation chain transfer (RAFT) polymerization and chemical modification reactions, which were then used as the building blocks for the formation of well-defined SCKs decorated with reactive thiols accessible to the surface. Fluorescent labeling with Alexa Fluor 633 hydrazide was then accomplished by amidation with residual acrylic acid residues within the SCK shells. Finally, the PNAs and CPP units were covalently conjugated to the SCKs via Michael addition of thiols on the SCKs to maleimide units on the termini of PNAs and CPPs. Confirmation of the ability of the PNAs to bind selectively to the target iNOS mRNAs when tethered to the SCK nanoparticles was determined by in vitro competition experiments. When attached to the SCKs having a hydrodynamic diameter of 60 ± 16 nm, the K(d) values of the PNAs were ca. an order of magnitude greater than the free PNAs, while the mismatched PNA showed no significant binding.
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Affiliation(s)
- Ritu Shrestha
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, USA
| | - Yuefei Shen
- Department of Chemistry, Washington University in Saint Louis, Saint Louis, Missouri 63130, USA
| | - Kevin A. Pollack
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, USA
| | - John-Stephen A. Taylor
- Department of Chemistry, Washington University in Saint Louis, Saint Louis, Missouri 63130, USA
| | - Karen L. Wooley
- Departments of Chemistry and Chemical Engineering, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, USA
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36
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Zhang S, Li A, Zou J, Lin LY, Wooley KL. Facile Synthesis of Clickable, Water-soluble and Degradable Polyphosphoesters. ACS Macro Lett 2012; 1:328-333. [PMID: 22866244 PMCID: PMC3410554 DOI: 10.1021/mz200226m] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
"Click" chemistry is a library of efficient and reliable reactions, which have been used to functionalize various classes of bio- and synthetic macromolecular systems for the incorporation of designed properties and functions. In this report, azide-alkyne Huisgen cycloaddition and thiol-yne reactions, two classical "click" chemistries, were employed to functionalize biodegradable, clickable polyphosphoester homopolymers and their water-soluble copolymers. A stable alkyne-functionalized phospholane monomer was synthesized, its organocatalyzed polymerization kinetics were evaluated, and the resulting (co)polymers were utilized to develop this facile method that provides the synthesis of clickable, water-soluble and degradable polyphosphoesters, which can be adapted for various applications.
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Affiliation(s)
- Shiyi Zhang
- Departments of Chemistry and Chemical Engineering, Texas A&M University, College Station, TX 77842
- Department of Chemistry, Washington University in St. Louis, St. Louis, MO 63130. Supporting Information Placeholder
| | - Ang Li
- Departments of Chemistry and Chemical Engineering, Texas A&M University, College Station, TX 77842
| | - Jiong Zou
- Departments of Chemistry and Chemical Engineering, Texas A&M University, College Station, TX 77842
| | - Lily Yun Lin
- Departments of Chemistry and Chemical Engineering, Texas A&M University, College Station, TX 77842
| | - Karen L. Wooley
- Departments of Chemistry and Chemical Engineering, Texas A&M University, College Station, TX 77842
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Samarajeewa S, Shrestha R, Li Y, Wooley KL. Degradability of poly(lactic acid)-containing nanoparticles: enzymatic access through a cross-linked shell barrier. J Am Chem Soc 2012; 134:1235-42. [PMID: 22257265 PMCID: PMC3265020 DOI: 10.1021/ja2095602] [Citation(s) in RCA: 103] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Comparative studies of bulk samples of hydrolytically degradable poly(lactic acid) (PLA) vs core-shell block copolymer micelles having PLA cores revealed remarkable acceleration in the proteinase K enzymatic hydrolysis of the nanoparticulate forms and demonstrated that even with amidation-based shell cross-linking the core domain remained accessible. Kinetic analyses by (1)H NMR spectroscopy showed less than 20% lactic acid released from enzymatically catalyzed hydrolysis of poly(l-lactic acid) in bulk, whereas ca. 70% of the core degraded within 48 h for block copolymer micelles of poly(N-(acryloyloxy)succinimide-copolymer-N-acryloylmorpholine)-block-poly(L-lactic acid) (P(NAS-co-NAM)-b-PLLA), with only a slight reduction to ca. 50% for the shell cross-linked derivatives. Rigorous characterization measurements by NMR spectroscopy, fluorescence spectroscopy, dynamic light scattering, atomic force microscopy, and transmission electron microscopy were employed to confirm core excavation. These studies provide important fundamental understanding of the effects of nanoscopic dimensions on protein-polymer interactions and polymer degradability, which will guide the development of these degradable nanoconstructs to reach their potential for controlled release of therapeutics and biological clearance.
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Affiliation(s)
- Sandani Samarajeewa
- Departments of Chemistry and Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Ritu Shrestha
- Departments of Chemistry and Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
| | - Yali Li
- Departments of Chemistry and Radiology, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Karen L. Wooley
- Departments of Chemistry and Chemical Engineering, Texas A&M University, College Station, Texas 77842, United States
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Li Y, Themistou E, Zou J, Das BP, Tsianou M, Cheng C. Facile Synthesis and Visualization of Janus Double-Brush Copolymers. ACS Macro Lett 2012; 1:52-56. [PMID: 35578452 DOI: 10.1021/mz200013e] [Citation(s) in RCA: 111] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Well-defined double-brush copolymers with each graft site carrying a polystyrene (PSt) graft and a polylactide (PLA) graft were synthesized by simultaneous reversible addition-fragmentation chain transfer (RAFT) and ring-opening polymerization (ROP) processes, followed by ring-opening metathesis polymerization (ROMP) "grafting through" of the resulting diblock macromonomer (MM). Their Janus-type morphologies were detected by transmission electron microscopy (TEM) imaging after thermal annealing to facilitate the intramolecular self-assembly of PSt and PLA grafts. This finding provides critical evidence to verify double-brush copolymers as Janus nanomaterials.
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Affiliation(s)
- Yukun Li
- Department of Chemical and Biological Engineering, University
at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Efrosyni Themistou
- Department of Chemical and Biological Engineering, University
at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Jiong Zou
- Department of Chemical and Biological Engineering, University
at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Biswa P. Das
- Department of Chemical and Biological Engineering, University
at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Marina Tsianou
- Department of Chemical and Biological Engineering, University
at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Chong Cheng
- Department of Chemical and Biological Engineering, University
at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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39
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Loget G, Kuhn A. Bulk synthesis of Janus objects and asymmetric patchy particles. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm31740k] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Eriksson K, Johansson L, Göthelid E, Nyholm L, Oscarsson S. Manufacturing of anisotropic particles by site specific oxidation of thiols. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30475a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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41
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Hu J, Zhou S, Sun Y, Fang X, Wu L. Fabrication, properties and applications of Janus particles. Chem Soc Rev 2012; 41:4356-78. [DOI: 10.1039/c2cs35032g] [Citation(s) in RCA: 506] [Impact Index Per Article: 42.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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42
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Tian P, Ye J, Xu N, Gong W, Zhang Q, Lin Y, Ning G. A magnesium carbonate recyclable template to synthesize micro hollow structures at a large scale. Chem Commun (Camb) 2011; 47:12008-10. [DOI: 10.1039/c1cc15186j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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