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Mei B, Moreno AJ, Schweizer KS. Unified Understanding of the Structure, Thermodynamics, and Diffusion of Single-Chain Nanoparticle Fluids. ACS NANO 2024; 18:15529-15544. [PMID: 38842208 DOI: 10.1021/acsnano.4c00226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Single-chain nanoparticles (SCNPs) are a fascinating class of soft nano-objects with promising properties and relevance to protein condensates, polymer nanocomposites, nanomedicine, bioimaging, catalysis, and drug delivery. We combine molecular dynamics simulations and equilibrium and time-dependent statistical mechanical theory to construct a unified understanding of how the internal conformational structure of SCNPs, of both a simple fractal globule-like form and more complex objects with multiple internal intermediate length scales, determines nm-scale intermolecular packing correlations, thermodynamic properties, and center-of-mass diffusion over a wide range of concentrations up to dense melts. The intermolecular pair correlations generically exhibit a distinctive deep correlation hole form due to SCNP internal connectivity structure and repulsive interparticle interactions associated with a globular-like conformation on the macromolecular scale, with concentration-dependent deviations at small separations. Unanticipated exponential-like dependences of the equation-of-state, osmotic compressibility, and center-of-mass diffusion constant on SCNP macromolecular packing fraction are theoretically predicted and confirmed via simulations. System-specific behaviors are found associated with SCNP internal structure, but overarching regularities are identified and understood based on a generalized effective globule conformation on macromolecular scales. Diffusivity slows down by 2-3 decades with increasing concentration and is understood as a consequence of a nonactivated excluded volume-driven weak-caging process associated with space-time correlated intermolecular forces experienced by the SCNP. Good agreement between the theory and simulations is established, testable predictions are made, and a quantitative comparison with viscosity measurements on a specific SCNP fluid is carried out. The basic theoretical approach can potentially be extended to treat the chemical and physical consequences of varying the structure of other classes of soft nanoparticles with distinctive internal nanoscale organization relevant in nanotechnology and nanomedicine, and the possible emergence of macromolecular kinetically arrested glasses.
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Affiliation(s)
- Baicheng Mei
- Department of Materials Science, University of Illinois, Urbana, Illinois 61801, United States
- Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, United States
| | - Angel J Moreno
- Centro de Física de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, Donostia-San Sebastián E-20018, Spain
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, Donostia-San Sebastián E-20018, Spain
| | - Kenneth S Schweizer
- Department of Materials Science, University of Illinois, Urbana, Illinois 61801, United States
- Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, United States
- Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
- Department of Chemical & Biomolecular Engineering, University of Illinois, Urbana, Illinois 61801, United States
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2
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Wijker S, Palmans ARA. Protein-Inspired Control over Synthetic Polymer Folding for Structured Functional Nanoparticles in Water. Chempluschem 2023; 88:e202300260. [PMID: 37417828 DOI: 10.1002/cplu.202300260] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/06/2023] [Accepted: 07/06/2023] [Indexed: 07/08/2023]
Abstract
The folding of proteins into functional nanoparticles with defined 3D structures has inspired chemists to create simple synthetic systems mimicking protein properties. The folding of polymers into nanoparticles in water proceeds via different strategies, resulting in the global compaction of the polymer chain. Herein, we review the different methods available to control the conformation of synthetic polymers and collapse/fold them into structured, functional nanoparticles, such as hydrophobic collapse, supramolecular self-assembly, and covalent cross-linking. A comparison is made between the design principles of protein folding to synthetic polymer folding and the formation of structured nanocompartments in water, highlighting similarities and differences in design and function. We also focus on the importance of structure for functional stability and diverse applications in complex media and cellular environments.
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Affiliation(s)
- Stefan Wijker
- Institute for Complex Molecular Systems, Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
| | - Anja R A Palmans
- Institute for Complex Molecular Systems, Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
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3
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Progress in polymer single-chain based hybrid nanoparticles. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4
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Calosi M, Guazzelli E, Braccini S, Lessi M, Bellina F, Galli G, Martinelli E. Self-Assembled Amphiphilic Fluorinated Random Copolymers for the Encapsulation and Release of the Hydrophobic Combretastatin A-4 Drug. Polymers (Basel) 2022; 14:polym14040774. [PMID: 35215686 PMCID: PMC8880340 DOI: 10.3390/polym14040774] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/03/2022] [Accepted: 02/12/2022] [Indexed: 02/07/2023] Open
Abstract
Water-soluble amphiphilic random copolymers composed of tri(ethylene glycol) methacrylate (TEGMA) or poly(ethylene glycol) methyl ether methacrylate (PEGMA) and perfluorohexylethyl acrylate (FA) were synthesized by ARGET-ATRP, and their self-assembling and thermoresponsive behavior in water was studied by dynamic light scattering (DLS) and UV-vis spectroscopy. The copolymer ability to self-fold in single-chain nano-sized structures (unimer micelles) in aqueous solutions was exploited to encapsulate Combretastatin A-4 (CA-4), which is a very hydrophobic anticancer drug. The cloud point temperature (Tcp) was found to linearly decrease with increasing drug concentration in the drug/copolymer system. Moreover, while CA-4 was preferentially incorporated into the unimer micelles of TEGMA-ran-FA, the drug was found to induce multi-chain, submicro-sized aggregation of PEGMA-ran-FA. Anyway, the encapsulation efficiency was very high (≥81%) for both copolymers. The drug release was evaluated in PBS aqueous solutions both below and above Tcp for TEGMA-ran-FA copolymer and below Tcp, but at two different drug loadings, for PEGMA-ran-FA copolymer. In any case, the release kinetics presented similar profiles, characterized by linear trends up to ≈10–13 h and ≈7 h for TEGMA-ran-FA and PEGMA-ran-FA, respectively. Then, the release rate decreased, reaching a plateau. The release from TEGMA-ran-FA was moderately faster above Tcp than below Tcp, suggesting that copolymer thermoresponsiveness increased the release rate, which occurred anyway by diffusion below Tcp. Cytotoxicity tests were carried out on copolymer solutions in a wide concentration range (5–60 mg/mL) at 37 °C by using Balb/3T3 clone A31 cells. Interestingly, it was found that the concentration-dependent micro-sized aggregation of the amphiphilic random copolymers above Tcp caused a sort of “cellular asphyxiation” with a loss of cell viability clearly visible for TEGMA-ran-FA solutions (Tcp below 37 °C) with higher copolymer concentrations. On the other hand, cells in contact with the analogous PEGMA-ran-FA (Tcp above 37 °C) presented a very good viability (≥75%) with respect to the control at any given concentration.
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5
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Liu Y, Bai S, Wu T, Chen CC, Liu Y, Chao X, Bai Y. Dendronized Arm Snowflake Polymer as a Highly Branched Scaffold for Cellular Imaging and Delivery. Biomacromolecules 2021; 22:3791-3799. [PMID: 34339173 DOI: 10.1021/acs.biomac.1c00631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Incorporation of branched structures is a major pathway to build macromolecules with desired three-dimensional (3D) structures, which are of high importance in the rational design of functional polymeric scaffolds. Dendrimers and hyperbranched polymers have been extensively studied for this purpose, but proper gain-of-function for these structures usually requires large enough molecular weights and a highly branched interior so that a spherical 3D core-shell architecture can be obtained, yet it is generally challenging to achieve precise control over the structure, high molecular weight, and high degree of branching (DoB) simultaneously. In this article, we present a set of snowflake-shaped star polymers with functional cores and dendronized arms, which ensure a high DoB and an overall globular conformation, thus facilitating the introduction of functional moieties onto the easily achieved scaffold without the need for high-generation dendrons. Using a polyglycerol dendron (PGD) as a proof of concept, we propose that this dendronized arm snowflake polymer (DASP) structure can serve as a better performing alternative to high-generation PGDs. DASPs with molecular weights of 750, 1220, 2120, and 3740 kDa were prepared with >85% yields in all cases, and we show that these DASPs have high encapsulating efficiency of Nile Red due to their high DoB and high biocompatibility due to their hydroxyl-rich nature after ketal removal, as well as high cell permeability that is molecular-weight-dependent. Introduced fluorophores such as fluorescein and difluoroboron 1,3-diphenylaminophenyl β-diketonate with suitable excitation wavelengths may turn the DASPs into stable, endosome-staining fluorophores with ultra-large Stokes shifts, narrowed emission bands, and suitability for long-term cellular tracing. Moreover, the scaffold can encapsulate antibiotic molecules and deliver them into phagolysosomes for efficient elimination of intracellular Staphylococcus aureus, which is insensitive toward many antibiotics but is a key target for the clinical success of methicillin-resistant Staphylococcus aureus infection treatment. Elimination of Staphylococcus aureus could be improved to >99.9% for chloramphenicol at 32 μg/mL with 450 μg/mL DASP.
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Affiliation(s)
- Yanhong Liu
- State Key Laboratory of Chem-/Bio-Sensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Silei Bai
- State Key Laboratory of Chem-/Bio-Sensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Tong Wu
- State Key Laboratory of Chem-/Bio-Sensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Chun-Chi Chen
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, Hubei 430062, China
| | - Ying Liu
- State Key Laboratory of Chem-/Bio-Sensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Xiangyu Chao
- State Key Laboratory of Chem-/Bio-Sensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Yugang Bai
- State Key Laboratory of Chem-/Bio-Sensing and Chemometrics, School of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
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Watanabe K, Kaizawa N, Ree BJ, Yamamoto T, Tajima K, Isono T, Satoh T. One‐Shot Intrablock Cross‐Linking of Linear Diblock Copolymer to Realize Janus‐Shaped Single‐Chain Nanoparticles. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103969] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kodai Watanabe
- Graduate School of Chemical Sciences and Engineering Hokkaido University Sapporo 060-8628 Japan
| | - Noya Kaizawa
- Graduate School of Chemical Sciences and Engineering Hokkaido University Sapporo 060-8628 Japan
| | - Brian J. Ree
- Faculty of Engineering Hokkaido University Sapporo 060-8628 Japan
| | - Takuya Yamamoto
- Faculty of Engineering Hokkaido University Sapporo 060-8628 Japan
| | - Kenji Tajima
- Faculty of Engineering Hokkaido University Sapporo 060-8628 Japan
| | - Takuya Isono
- Faculty of Engineering Hokkaido University Sapporo 060-8628 Japan
| | - Toshifumi Satoh
- Faculty of Engineering Hokkaido University Sapporo 060-8628 Japan
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7
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Watanabe K, Kaizawa N, Ree BJ, Yamamoto T, Tajima K, Isono T, Satoh T. One-Shot Intrablock Cross-Linking of Linear Diblock Copolymer to Realize Janus-Shaped Single-Chain Nanoparticles. Angew Chem Int Ed Engl 2021; 60:18122-18128. [PMID: 34041829 DOI: 10.1002/anie.202103969] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 05/06/2021] [Indexed: 11/06/2022]
Abstract
Developing an efficient and versatile process to transform a single linear polymer chain into a shape-defined nanoobject is a major challenge in the fields of chemistry and nanotechnology to replicate sophisticated biological functions of proteins and nucleic acids in a synthetic polymer system. In this study, we performed one-shot intrablock cross-linking of linear block copolymers (BCPs) to realize single-chain nanoparticles (SCNPs) with two chemically compartmentalized domains (Janus-shaped SCNPs). Detailed structural characterizations of the Janus-shaped SCNP composed of polystyrene-block-poly(glycolic acid) revealed its compactly folded conformation and compartmentalized block localization, similar to the self-folded tertiary structures of natural proteins. Versatility of the one-shot intrablock cross-linking was demonstrated using several different BCP precursors. In addition, the Janus-shaped SCNP produce miniscule microphase-separated structures.
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Affiliation(s)
- Kodai Watanabe
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Noya Kaizawa
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Brian J Ree
- Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Takuya Yamamoto
- Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Kenji Tajima
- Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Takuya Isono
- Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
| | - Toshifumi Satoh
- Faculty of Engineering, Hokkaido University, Sapporo, 060-8628, Japan
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8
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Falanga A, Del Genio V, Kaufman EA, Zannella C, Franci G, Weck M, Galdiero S. Engineering of Janus-Like Dendrimers with Peptides Derived from Glycoproteins of Herpes Simplex Virus Type 1: Toward a Versatile and Novel Antiviral Platform. Int J Mol Sci 2021; 22:6488. [PMID: 34204295 PMCID: PMC8234430 DOI: 10.3390/ijms22126488] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 12/17/2022] Open
Abstract
Novel antiviral nanotherapeutics, which may inactivate the virus and block it from entering host cells, represent an important challenge to face viral global health emergencies around the world. Using a combination of bioorthogonal copper-catalyzed 1,3-dipolar alkyne/azide cycloaddition (CuAAC) and photoinitiated thiol-ene coupling, monofunctional and bifunctional peptidodendrimer conjugates were obtained. The conjugates are biocompatible and demonstrate no toxicity to cells at biologically relevant concentrations. Furthermore, the orthogonal addition of multiple copies of two different antiviral peptides on the surface of a single dendrimer allowed the resulting bioconjugates to inhibit Herpes simplex virus type 1 at both the early and the late stages of the infection process. The presented work builds on further improving this attractive design to obtain a new class of therapeutics.
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Affiliation(s)
- Annarita Falanga
- Department of Agricultural Sciences, University of Naples “Federico II”, Via Università 100, Portici, 80055 Naples, Italy;
| | - Valentina Del Genio
- Department of Pharmacy and CIRPEB, University of Naples “Federico II”, Via Montesano 49, 80131 Naples, Italy;
| | - Elizabeth A. Kaufman
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY 10003, USA; (E.A.K.); (M.W.)
| | - Carla Zannella
- Department of Experimental Medicine, Second University of Naples, Via de Crecchio 7, 80138 Naples, Italy;
| | - Gianluigi Franci
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”, University of Salerno, 84081 Baronissi, Italy;
| | - Marcus Weck
- Department of Chemistry and Molecular Design Institute, New York University, New York, NY 10003, USA; (E.A.K.); (M.W.)
| | - Stefania Galdiero
- Department of Pharmacy and CIRPEB, University of Naples “Federico II”, Via Montesano 49, 80131 Naples, Italy;
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9
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Hoffmann JF, Roos AH, Schmitt FJ, Hinderberger D, Binder WH. Fluorescent and Water Dispersible Single-Chain Nanoparticles: Core-Shell Structured Compartmentation. Angew Chem Int Ed Engl 2021; 60:7820-7827. [PMID: 33373475 PMCID: PMC8048794 DOI: 10.1002/anie.202015179] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/13/2020] [Indexed: 12/20/2022]
Abstract
Single-chain nanoparticles (SCNPs) are highly versatile structures resembling proteins, able to function as catalysts or biomedical delivery systems. Based on their synthesis by single-chain collapse into nanoparticular systems, their internal structure is complex, resulting in nanosized domains preformed during the crosslinking process. In this study we present proof of such nanocompartments within SCNPs via a combination of electron paramagnetic resonance (EPR) and fluorescence spectroscopy. A novel strategy to encapsulate labels within these water dispersible SCNPs with hydrodynamic radii of ≈5 nm is presented, based on amphiphilic polymers with additional covalently bound labels, attached via the copper catalyzed azide/alkyne "click" reaction (CuAAC). A detailed profile of the interior of the SCNPs and the labels' microenvironment was obtained via electron paramagnetic resonance (EPR) experiments, followed by an assessment of their photophysical properties.
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Affiliation(s)
- Justus F Hoffmann
- Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, 06120, Halle, Germany
| | - Andreas H Roos
- Physical Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, 06120, Halle, Germany
| | - Franz-Josef Schmitt
- Institute of Physics, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 3, 06120, Halle, Germany
| | - Dariush Hinderberger
- Physical Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, 06120, Halle, Germany
| | - Wolfgang H Binder
- Macromolecular Chemistry, Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics), Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, 06120, Halle, Germany
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10
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Hoffmann JF, Roos AH, Schmitt F, Hinderberger D, Binder WH. Fluorescent and Water Dispersible Single‐Chain Nanoparticles: Core–Shell Structured Compartmentation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015179] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Justus F. Hoffmann
- Macromolecular Chemistry Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics) Martin Luther University Halle-Wittenberg von-Danckelmann-Platz 4 06120 Halle Germany
| | - Andreas H. Roos
- Physical Chemistry Institute of Chemistry Faculty of Natural Science II (Chemistry, Physics and Mathematics) Martin Luther University Halle-Wittenberg von-Danckelmann-Platz 4 06120 Halle Germany
| | - Franz‐Josef Schmitt
- Institute of Physics, Faculty of Natural Science II (Chemistry, Physics and Mathematics) Martin Luther University Halle-Wittenberg von-Danckelmann-Platz 3 06120 Halle Germany
| | - Dariush Hinderberger
- Physical Chemistry Institute of Chemistry Faculty of Natural Science II (Chemistry, Physics and Mathematics) Martin Luther University Halle-Wittenberg von-Danckelmann-Platz 4 06120 Halle Germany
| | - Wolfgang H. Binder
- Macromolecular Chemistry Institute of Chemistry, Faculty of Natural Science II (Chemistry, Physics and Mathematics) Martin Luther University Halle-Wittenberg von-Danckelmann-Platz 4 06120 Halle Germany
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11
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Wen W, Chen A. The self-assembly of single chain Janus nanoparticles from azobenzene-containing block copolymers and reversible photoinduced morphology transitions. Polym Chem 2021. [DOI: 10.1039/d1py00223f] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Azobenzene-containing liquid crystalline single chain Janus nanoparticles (LC-SCJNPs) were employed as building blocks to construct assemblies showing a reversible photoinduced morphology transition.
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Affiliation(s)
- Wei Wen
- School of Materials Science and Engineering
- Beihang University
- Beijing 100191
- P. R. China
| | - Aihua Chen
- School of Materials Science and Engineering
- Beihang University
- Beijing 100191
- P. R. China
- Beijing Advanced Innovation Centre for Biomedical Engineering
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12
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Wang Y, Zhu X. Nanofabrication within unimolecular nanoreactors. NANOSCALE 2020; 12:12698-12711. [PMID: 32525189 DOI: 10.1039/d0nr02674c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanoparticles (NPs) have been a research focus over the last three decades owing to their unique properties and extensive applications. It is crucial to precisely control the features of NPs including topology, architecture, composition, size, surface and assembly because these features will affect their properties and then applications. Ingenious nanofabrication strategies have been developed to precisely control these features of NPs, especially for templated nanofabrication within predesigned nanoreactors. Compared with conventional nanoreactors (hard templates and supramolecular nanoreactors), unimolecular nanoreactors exhibit (1) covalently stable nanostructures uninfluenced by environmental variations, (2) extensively regulated features of the structure including topology, composition, size, surface and valence due to the rapid development of polymer chemistry, and (3) effective encapsulation of abundant guests with or without strong interaction to achieve the function of loading, delivery and conversion of guests. Thus, unimolecular nanoreactors have shown fascinating prospects as templates for nanofabrication. Various NPs with expected topologies (sphere, rod, tube, branch, and ring), architectures (compact, hollow, core-shell, and necklace-like), compositions (metal, metal oxide, semiconductor, doping, alloy, silica, and composite), sizes (generally 1-100 nm), surface properties (hydrophilic, hydrophobic, reactivity, valence and responsivity) and assemblies (oligomer, chain, and aggregate) can be fabricated easily within reasonably designed unimolecular nanoreactors in a programmable way. In this review, we provide a brief introduction of the properties and types of unimolecular nanoreactors, a condensed summary of representative methodologies of nanofabrication within various unimolecular nanoreactors and a predicted outlook of the potential further developments of this charming nanofabrication approach.
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Affiliation(s)
- Youfu Wang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China.
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13
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Chen J, Garcia ES, Zimmerman SC. Intramolecularly Cross-Linked Polymers: From Structure to Function with Applications as Artificial Antibodies and Artificial Enzymes. Acc Chem Res 2020; 53:1244-1256. [PMID: 32441091 DOI: 10.1021/acs.accounts.0c00178] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cross-linking of polymers significantly alters their physical properties, greatly expanding their everyday utility. Indeed, the polymeric networks resulting from linkages between polymer chains are found in everyday materials from soft contact lenses and automobile tires to enamel coatings and high-performance adhesives. In contrast, intramolecularly cross-linked polymers have received far less attention until recent years, in large part because they are synthetically more challenging to prepare. In this Account, we trace our own efforts to develop the chemistry of intramolecularly cross-linked macromolecules, starting with dendrimers. Dendrimers provided an excellent starting point for investigating intramolecular cross-linking because they are single molecular entities. We showed that the end groups of dendrimers can be extensively cross-linked using the ring-closing metathesis reaction and that the discrete structure of the dendrimer provides unique opportunities for characterizing the number and location of the cross-links as well as some physical properties of the macromolecule such as its size and rigidity. Increasing the number of ring-closing metathesis reactions correlated with a reduction in size and an increase in rigidity. The general strategy applied to dendrimers was extended to star polymers and hyperbranched polyglycerols. Each of these macromolecules has a core or an initiating group from which the branches emanate. Linking the end groups or branches of these polymers presents a unique opportunity to chemically remove the core of the cross-linked macromolecule in a process that is reminiscent of that used to produce covalent molecular imprinted polymers. Recognizing this analogy, we sought a compelling application for cross-linked dendrimers, the first example of unimolecular imprinting, where a single polymer contains a single molecular imprint. The quality of the imprinting was mixed but pointed to an alternative general strategy for molecular imprinting in polymers. The effort also focused attention on synthetic antibodies and the general biomimicry provided by this class of macromolecules. Indeed, cross-linking of polymers either covalently or non-covalently bears a loose resemblance to folding of proteins into defined three-dimensional shapes. The synthesis and study of cross-linked linear polymers, often called single-chain nanoparticles (SCNPs), has emerged as a very active area of research in the past few years. Our experience with the cross-linking of branched polymers combined with an interest in performing organic synthesis within living cells led us to develop copper-containing SCNPs as artificial clickases. These polymeric clickases exhibit all of the hallmarks of enzymatic catalysis. One clickase containing a polyacrylamide backbone performs low-concentration copper-assisted alkyne-azide click reactions at unprecedented rates. Another performs click reactions within living cells. Other organic transformations can be performed intracellularly, and some of the most advanced SCNPs engage in concurrent and tandem catalysis with a naturally occurring biocatalyst. By tracing our own efforts, this Account provides a few entry points into the broader literature and also points to both the remaining challenges and overall promising future envisioned for this unique class of functional macromolecules.
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Affiliation(s)
- Junfeng Chen
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Edzna S. Garcia
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Steven C. Zimmerman
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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14
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Frisch H, Tuten BT, Barner‐Kowollik C. Macromolecular Superstructures: A Future Beyond Single Chain Nanoparticles. Isr J Chem 2020. [DOI: 10.1002/ijch.201900145] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Hendrik Frisch
- Centre for Materials Science, School of Chemistry and Physics Queensland University of Technology (QUT) 2 George Street Brisbane, QLD 4000 Australia
| | - Bryan T. Tuten
- Centre for Materials Science, School of Chemistry and Physics Queensland University of Technology (QUT) 2 George Street Brisbane, QLD 4000 Australia
| | - Christopher Barner‐Kowollik
- Centre for Materials Science, School of Chemistry and Physics Queensland University of Technology (QUT) 2 George Street Brisbane, QLD 4000 Australia
- Macromolecular Architectures Institut für Technische Chemie und Polymerchemie KarlsruheInstitute of Technology (KIT) Engesserstr.18 76131 Karlsruhe Germany
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15
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Bai Y, Xing H, Bai Y, Tan LH, Hwang K, Li J, Lu Y, Zimmerman SC. Independent control over size, valence, and elemental composition in the synthesis of DNA-nanoparticle conjugates. Chem Sci 2020; 11:1564-1572. [PMID: 34084387 PMCID: PMC8148076 DOI: 10.1039/c9sc05656d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
DNA–nanoparticle conjugates have found widespread use in sensing, imaging, and as components of devices. However, their synthesis remains relatively complicated and empirically based, often requiring specialized protocols for conjugates of different size, valence, and elemental composition. Here we report a novel, bottom-up approach for the synthesis of DNA–nanoparticle conjugates, based on ring-opening metathesis polymerization (ROMP), intramolecular crosslinking, and template synthesis. Using size, valence, and elemental composition as three independent synthetic parameters, various conjugates can be obtained using a facile and universal procedure. Examples are given to show the usefulness of these conjugates as sensing probes, building blocks for self-assembly, and as model particles for structure–property relationship studies. DNA–nanoparticle conjugates can be synthesized with independent control over size, valence and elemental composition using a template-based strategy.![]()
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Affiliation(s)
- Yugang Bai
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA .,Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Biosensing and Chemometrics, Department of Chemistry, Hunan University Changsha Hunan 410000 China
| | - Hang Xing
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA .,Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Biosensing and Chemometrics, Department of Chemistry, Hunan University Changsha Hunan 410000 China.,Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Yunhao Bai
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Li Huey Tan
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Kevin Hwang
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Ji Li
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Yi Lu
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA .,Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Steven C Zimmerman
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
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16
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Li L, Xing H, Zhang J, Lu Y. Functional DNA Molecules Enable Selective and Stimuli-Responsive Nanoparticles for Biomedical Applications. Acc Chem Res 2019; 52:2415-2426. [PMID: 31411853 DOI: 10.1021/acs.accounts.9b00167] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nanoparticles (NPs) have enormous potential to improve disease diagnosis and treatment due to their intrinsic electronic, optical, magnetic, mechanical, and physiological properties. To realize their full potential for nanomedicine, NPs must be biocompatible and targetable toward specific biomolecules to ensure selective sensing, imaging, and drug delivery in complex environments such as living cells, tissues, animals, and human bodies. In this Account, we summarize our efforts to impart specific biocompatibility and biorecognition functionality to NPs by developing strategies to integrate inorganic and organic NPs with functional DNA (fDNA), including aptamers, DNAzymes, and aptazymes to create fDNA-NPs. These hybrid NPs take advantage of fDNA's ability to either bind targets or catalyze reactions in the presence of targets selectively and utilize their unique physicochemical properties including small size, low immunogenicity, and ease of synthesis and chemical modification in comparison with other molecules such as antibodies. By integrating inorganic NPs such as gold NPs, quantum dots, and iron oxide nanoparticles with fDNA, we designed stimuli-responsive fDNA-NPs that exhibit target induced assembly and disassembly of NPs, resulting in a variety of colorimetric, fluorescent, and magnetic resonance imaging (MRI)-based sensors for diagnostic of a broad range of analytes. To impart both biocompatibility and selectivity on inorganic NPs for targeted bioimaging, we have demonstrated DNA-mediated surface functionalization, shape-controlled synthesis, and coordinative assembly of such NPs as specific bioprobes. A highlight is provided on the construction of fDNA-based nanoprobes with light-activatable sensing and imaging functions, which provides precise control of recognition properties of fDNA with high spatiotemporal resolution. To explore the potential of organic NPs for biosensing applications, we have developed an enzyme-responsive fDNA-liposome as a universal sensing platform compatible with diverse biological targets as well as different detection methods including fluorescence, MRI, or temperature, making possible point-of-care diagnostics. To expand the application regime of organic NPs, we collaborated with the Zimmerman group to prepare single-chain block copolymer-based NPs and incorporated it with a variety of functions, including monovalent DNA for assembly, tunable surface chemistry for cellular imaging, and coordinative Cu(II) sites for catalyzing intracellular click reactions, demonstrating the potential of using organic NPs to create promising fDNA-NP systems with programmable functionalities. Furthermore, we survey our recent endeavor in integration of cell-specific aptamers with different NPs for targeted drug delivery, showing that introducing stimuli-responsive properties into NPs that target tumor microenvironments would enable safer and more effective therapy for cancers. Finally, current challenges and future perspectives in fDNA-mediated engineering of NPs for biomedical applications are discussed.
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Affiliation(s)
- Lele Li
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Hang Xing
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
- Institute of Chemical Biology and Nanomedicine, State Key Laboratory for Chemo/Bio Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China
| | - Jingjing Zhang
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi Lu
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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17
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Chen J, Wang J, Li K, Wang Y, Gruebele M, Ferguson AL, Zimmerman SC. Polymeric "Clickase" Accelerates the Copper Click Reaction of Small Molecules, Proteins, and Cells. J Am Chem Soc 2019; 141:9693-9700. [PMID: 31124359 DOI: 10.1021/jacs.9b04181] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Recent work has shown that polymeric catalysts can mimic some of the remarkable features of metalloenzymes by binding substrates in proximity to a bound metal center. We report here an unexpected role for the polymer: multivalent, reversible, and adaptive binding to protein surfaces allowing for accelerated catalytic modification of proteins. The catalysts studied are a group of copper-containing single-chain polymeric nanoparticles (CuI-SCNP) that exhibit enzyme-like catalysis of the copper-mediated azide-alkyne cycloaddition reaction. The CuI-SCNP use a previously observed "uptake mode", binding small-molecule alkynes and azides inside a water-soluble amphiphilic polymer and proximal to copper catalytic sites, but with unprecedented rates. Remarkably, a combined experimental and computational study shows that the same CuI-SCNP perform a more efficient click reaction on modified protein surfaces and cell surface glycans than do small-molecule catalysts. The catalysis occurs through an "attach mode" where the SCNPs reversibly bind protein surfaces through multiple hydrophobic and electrostatic contacts. The results more broadly point to a wider capability for polymeric catalysts as artificial metalloenzymes, especially as it relates to bioapplications.
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Affiliation(s)
| | | | | | | | | | - Andrew L Ferguson
- Institute for Molecular Engineering , The University of Chicago , Chicago , Illinois 60637 , United States
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18
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Wen W, Huang T, Guan S, Zhao Y, Chen A. Self-Assembly of Single Chain Janus Nanoparticles with Tunable Liquid Crystalline Properties from Stilbene-Containing Block Copolymers. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00154] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | | | | | - Yongbin Zhao
- Shandong Oubo New
Material Co. Ltd., Shandong 257088, P. R. China
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19
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Nitsche T, Steinkoenig J, De Bruycker K, Bloesser FR, Blanksby SJ, Blinco JP, Barner-Kowollik C. Mapping the Compaction of Discrete Polymer Chains by Size Exclusion Chromatography Coupled to High-Resolution Mass Spectrometry. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00203] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - Jan Steinkoenig
- Department of Organic and Macromolecular Chemistry, Polymer Chemistry Research Group, Center of Macromolecular Chemistry (CMaC), Ghent University, Krijgslaan 281 S4bis, 9000 Ghent, Belgium
| | | | | | | | | | - Christopher Barner-Kowollik
- Macromolecular Architectures, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 18, 76131 Karlsruhe, Germany
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20
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Rubio-Cervilla J, Malo de Molina P, Robles-Hernández B, Arbe A, Moreno AJ, Alegría A, Colmenero J, Pomposo JA. Facile Access to Completely Deuterated Single-Chain Nanoparticles Enabled by Intramolecular Azide Photodecomposition. Macromol Rapid Commun 2019; 40:e1900046. [PMID: 30801882 DOI: 10.1002/marc.201900046] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Indexed: 01/14/2023]
Abstract
Access to completely deuterated single-chain nanoparticles (dSCNPs) has remained an unresolved issue. Herein, the first facile and efficient procedure to produce dSCNPs is reported, which comprises: i) the use of commercially available perdeuterated cyclic ether monomers as starting reagents, ii) a ring-opening copolymerization process performed in bulk to produce a neat dSCNP precursor, iii) a standard azidation reaction to decorate this precursor with azide moieties, and iv) a facile intramolecular azide photodecomposition step carried out under UV irradiation at high dilution providing with highly valuable, completely deuterated soft nano-objects from the precursor. dSCNPs are used to investigate by means of neutron-scattering measurements the form factor (radius of gyration, scaling exponent) of polyethylene oxide (PEO) chains in nanocomposites with different amounts of dSCNPs. Moreover, to illustrate the possibilities offered by the synthetic route disclosed in this communication for potential applications, the significant reduction in viscosity observed in a pure melt of polyether-based single-chain nanoparticles when compared to a melt of the corresponding linear polymer chains is shown.
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Affiliation(s)
- Jon Rubio-Cervilla
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC Materials Physics Center, Paseo Manuel de Lardizabal 5, 20018, San Sebastian, Spain
| | - Paula Malo de Molina
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC Materials Physics Center, Paseo Manuel de Lardizabal 5, 20018, San Sebastian, Spain.,Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018, San Sebastian, Spain
| | - Beatriz Robles-Hernández
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC Materials Physics Center, Paseo Manuel de Lardizabal 5, 20018, San Sebastian, Spain.,Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018, San Sebastian, Spain
| | - Arantxa Arbe
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC Materials Physics Center, Paseo Manuel de Lardizabal 5, 20018, San Sebastian, Spain
| | - Angel J Moreno
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC Materials Physics Center, Paseo Manuel de Lardizabal 5, 20018, San Sebastian, Spain.,Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018, San Sebastian, Spain
| | - Angel Alegría
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC Materials Physics Center, Paseo Manuel de Lardizabal 5, 20018, San Sebastian, Spain.,Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080, San Sebastian, Spain
| | - Juan Colmenero
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC Materials Physics Center, Paseo Manuel de Lardizabal 5, 20018, San Sebastian, Spain.,Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018, San Sebastian, Spain.,Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080, San Sebastian, Spain
| | - José A Pomposo
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC Materials Physics Center, Paseo Manuel de Lardizabal 5, 20018, San Sebastian, Spain.,Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, 20080, San Sebastian, Spain.,IKERBASQUE-Basque Foundation for Science, María Díaz de Haro 3, 48013, Bilbao, Spain
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21
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Liu R, Lindsey JS. Single-Polymer-Single-Cargo Strategy Packages Hydrophobic Fluorophores in Aqueous Solution with Retention of Inherent Brightness. ACS Macro Lett 2019; 8:79-83. [PMID: 35619412 DOI: 10.1021/acsmacrolett.8b00907] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A strategy for encapsulating hydrophobic organic entities in aqueous solution has been developed through use of a self-assembling heterotelechelic amphiphilic random copolymer. The polymer (∼40 kDa), prepared by living radical polymerization, contains orthogonally reactive terminal groups and pendant hydrophobic (dodecyl), nonionic hydrophilic (PEG9), and ionic hydrophilic (sulfonate-terminated) groups. Covalent conjugation of a hydrophobic entity to the polymer terminus has been demonstrated for 8 classes of organic fluorophores. The resulting "pod-fluorophore" architecture is unimeric (∼15 nm in diameter) in aqueous solution with spectral features and fluorescence brightness resembling those of the benchmark fluorophore in organic solution. This strategy separates the functional design of the packaged molecular entity ("cargo") from the often vexing challenge of water solubilization and in so doing creates a unitary (one-pod-one-cargo) platform architecture for potential applications in cytometry, biomedical imaging, environmental sensing, and supramolecular chemistry.
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Affiliation(s)
- Rui Liu
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Jonathan S. Lindsey
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
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22
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Wang Y, Li R, Bian Y, Zhang X, Zhu X. The synthesis and oligomerization of a monofunctional bottlebrush-shaped polymer terminated with an azide group. Polym Chem 2019. [DOI: 10.1039/c9py00985j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A monofunctional bottlebrush-shaped polymer terminated with an azide group and its oligomers (dimer, trimer) were synthesized in a controlled manner and directly visualized.
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Affiliation(s)
- Youfu Wang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Rui Li
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Yawen Bian
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
| | - Xueli Zhang
- Joint Research Center for Precision Medicine
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital South Campus
- Shanghai 201499
- People's Republic of China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- People's Republic of China
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23
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Ahmed M, Faisal M, Ihsan A, Naseer MM. Fluorescent organic nanoparticles (FONs) as convenient probes for metal ion detection in aqueous medium. Analyst 2019; 144:2480-2497. [DOI: 10.1039/c8an01801d] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Fluorescent organic nanoparticle (FON)-based chemosensors are emerging as a valuable tool for the fast and accurate detection of metal ions in aqueous media. In this review, we highlight the recent developments in this field.
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Affiliation(s)
- Mukhtiar Ahmed
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
| | - Muhammad Faisal
- Department of Chemistry
- Quaid-i-Azam University
- Islamabad 45320
- Pakistan
| | - Ayesha Ihsan
- Nanobiotechnology group
- National Institute for Biotechnology and Genetic Engineering (NIBGE)
- Faisalabad
- Pakistan
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24
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Liu R, Vairaprakash P, Lindsey JS. Self-assembly with fluorescence readout in a free base dipyrrin–polymer triggered by metal ion binding in aqueous solution. NEW J CHEM 2019. [DOI: 10.1039/c9nj01787a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Profound morphological and fluorogenic changes ensue upon binding of a zinc ion by two polymers, each of which bears a single dipyrrin at one terminus, forming the bis(dipyrrinato)Zn(ii) complex.
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Affiliation(s)
- Rui Liu
- Department of Chemistry, North Carolina State University
- Raleigh
- USA
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25
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Chen J, Wang J, Bai Y, Li K, Garcia ES, Ferguson AL, Zimmerman SC. Enzyme-like Click Catalysis by a Copper-Containing Single-Chain Nanoparticle. J Am Chem Soc 2018; 140:13695-13702. [DOI: 10.1021/jacs.8b06875] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Junfeng Chen
- Department of Chemistry, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Jiang Wang
- Department of Physics, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Yugang Bai
- Department of Chemistry, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Ke Li
- Department of Chemistry, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Edzna S. Garcia
- Department of Chemistry, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
| | - Andrew L. Ferguson
- Institute for Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, United States
| | - Steven C. Zimmerman
- Department of Chemistry, University of Illinois at Urbana—Champaign, Urbana, Illinois 61801, United States
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26
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Rubio‐Cervilla J, Frisch H, Barner‐Kowollik C, Pomposo JA. Synthesis of Single‐Ring Nanoparticles Mimicking Natural Cyclotides by a Stepwise Folding‐Activation‐Collapse Process. Macromol Rapid Commun 2018; 40:e1800491. [DOI: 10.1002/marc.201800491] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/30/2018] [Indexed: 01/21/2023]
Affiliation(s)
- Jon Rubio‐Cervilla
- Centro de Física de Materiales (CSIC, UPV/EHU) – MPC Materials Physics Center Paseo Manuel de Lardizabal 5 20018 San Sebastian Spain
| | - Hendrik Frisch
- School of Chemistry Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street QLD 4000 Brisbane Australia
| | - Christopher Barner‐Kowollik
- School of Chemistry Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street QLD 4000 Brisbane Australia
- Macromolecular Architectures Institut für Technische Chemie und Polymerchemie Karlsruhe Institute of Technology (KIT) Engesserstrasse 18 76131 Karlsruhe Germany
| | - José A. Pomposo
- Centro de Física de Materiales (CSIC, UPV/EHU) – MPC Materials Physics Center Paseo Manuel de Lardizabal 5 20018 San Sebastian Spain
- Departamento de Física de Materiales Universidad del País Vasco (UPV/EHU) Apartado 1072 20080 San Sebastian Spain
- IKERBASQUE – Basque Foundation for Science María Díaz de Haro 3 48013 Bilbao Spain
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27
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Kröger APP, Paulusse JMJ. Single-chain polymer nanoparticles in controlled drug delivery and targeted imaging. J Control Release 2018; 286:326-347. [PMID: 30077737 DOI: 10.1016/j.jconrel.2018.07.041] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/17/2018] [Accepted: 07/27/2018] [Indexed: 12/26/2022]
Abstract
As a relatively new class of materials, single-chain polymer nanoparticles (SCNPs) just entered the field of (biomedical) applications, with recent advances in polymer science enabling the formation of bio-inspired nanosized architectures. Exclusive intramolecular collapse of individual polymer chains results in individual nanoparticles. With sizes an order of magnitude smaller than conventional polymer nanoparticles, SCNPs are in the size regime of many proteins and viruses (1-20 nm). Multifaceted syntheses and design strategies give access to a wide set of highly modular SCNP materials. This review describes how SCNPs have been rendered water-soluble and highlights ongoing research efforts towards biocompatible SCNPs with tunable properties for controlled drug delivery, targeted imaging and protein mimicry.
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Affiliation(s)
- A Pia P Kröger
- Department of Biomolecular Nanotechnology, MESA+ Institute for Nanotechnology and TechMed Institute for Health and Biomedical Technologies, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Jos M J Paulusse
- Department of Biomolecular Nanotechnology, MESA+ Institute for Nanotechnology and TechMed Institute for Health and Biomedical Technologies, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands; Department of Nuclear Medicine and Molecular Imaging, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
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28
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Galant O, Davidovich-Pinhas M, Diesendruck CE. The Effect of Intramolecular Cross-Linking on Polymer Interactions in Solution. Macromol Rapid Commun 2018; 39:e1800407. [PMID: 29984465 DOI: 10.1002/marc.201800407] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 06/10/2018] [Indexed: 12/29/2022]
Abstract
The conformation of a polymer in a solvent is typically defined by the solvent quality, which is a consequence of the solvent and macromolecule's chemistry. Yet, additional factors can affect the polymer conformation, such as non-covalent interactions to surfaces or other macromolecules, affecting the amount of polymer-solvent interactions. Herein, chemically folded polymers with protein-like architectures are studied and compared to their unfolded linear precursor in good solvents using rheology measurements. The current research reveals that permanent folding by intramolecular chemical cross-linking limits the chain mobility and therefore causes a reduction in polymer-solvent interactions, making a good solvent become theta. This change not only affects the "solvent quality" but also leads to a change in particle-particle interactions as a function of concentration. These findings provide crucial insight into the effects of intramolecular cross-links on macromolecule solubility and self-assembly, which are critical for mimicking structurally similar biological materials.
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Affiliation(s)
- Or Galant
- The Interdepartmental Program in Polymer Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Maya Davidovich-Pinhas
- Biotechnology and Food Engineering, Technion - Israel Institute of Technology, Haifa, 3200008, Israel
| | - Charles E Diesendruck
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
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29
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Pomposo JA, Rubio-Cervilla J, Gonzalez E, Moreno AJ, Arbe A, Colmenero J. Ultrafiltration of single-chain polymer nanoparticles through nanopores and nanoslits. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.06.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Fischer TS, Spann S, An Q, Luy B, Tsotsalas M, Blinco JP, Mutlu H, Barner-Kowollik C. Self-reporting and refoldable profluorescent single-chain nanoparticles. Chem Sci 2018; 9:4696-4702. [PMID: 29899964 PMCID: PMC5969495 DOI: 10.1039/c8sc01009a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/29/2018] [Indexed: 11/21/2022] Open
Abstract
We pioneer the formation of self-reporting and refoldable profluorescent single-chain nanoparticles (SCNPs) via the light-induced reaction (λmax = 320 nm) of nitroxide radicals with a photo-active crosslinker.
We pioneer the formation of self-reporting and refoldable profluorescent single-chain nanoparticles (SCNPs) via the light-induced reaction (λmax = 320 nm) of nitroxide radicals with a photo-active crosslinker. Whereas the tethered nitroxide moiety in these polymers fully quenches the luminescence (i.e. fluorescence) of the aromatic backbone, nitroxide trapping of a transient C-radical leads to the corresponding closed shell alkoxyamine thereby restoring luminescence of the folded SCNP. Hence, the polymer in the folded state is capable of emitting light, while in the non-folded state the luminescence is silenced. Under oxidative conditions the initially folded SCNPs unfold, resulting in luminescence switch-off and the reestablishment of the initial precursor polymer. Critically, we show that the luminescence can be repeatedly silenced and reactivated. Importantly, the self-reporting character of the SCNPs was followed by size-exclusion chromatography (SEC), dynamic light scattering (DLS), fluorescence, electron paramagnetic resonance (EPR), nuclear magnetic resonance (NMR) and diffusion ordered NMR spectroscopy (DOSY).
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Affiliation(s)
- Tobias S Fischer
- Macromolecular Architectures , Institut für Technische Chemie und Polymerchemie , Karlsruhe Institute of Technology (KIT) , Engesserstraße 18 , 76128 Karlsruhe , Germany . .,Soft Matter Synthesis Laboratory , Institut für Biologische Grenzflächen (IBG) , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Karlsruhe , Germany .
| | - Sebastian Spann
- Institut für Organische Chemie , Karlsruhe Institute of Technology (KIT) , Fritz-Haber-Weg 6 , 76131 Karlsruhe , Germany.,Institut für Biologische Grenzflächen 4 - Magnetische Resonanz , Karlsruher Institut für Technologie (KIT) , Postfach 3640 , 76021 Karlsruhe , Germany
| | - Qi An
- Institut für Funktionelle Grenzflächen , Karlsruhe Institue of Technology (KIT) , Herrmann-von Helmholtz-Platz 1 , 76344 , Eggenstein-Leopoldshafen , Germany
| | - Burkhard Luy
- Institut für Organische Chemie , Karlsruhe Institute of Technology (KIT) , Fritz-Haber-Weg 6 , 76131 Karlsruhe , Germany.,Institut für Biologische Grenzflächen 4 - Magnetische Resonanz , Karlsruher Institut für Technologie (KIT) , Postfach 3640 , 76021 Karlsruhe , Germany
| | - Manuel Tsotsalas
- Institut für Organische Chemie , Karlsruhe Institute of Technology (KIT) , Fritz-Haber-Weg 6 , 76131 Karlsruhe , Germany.,Institut für Funktionelle Grenzflächen , Karlsruhe Institue of Technology (KIT) , Herrmann-von Helmholtz-Platz 1 , 76344 , Eggenstein-Leopoldshafen , Germany
| | - James P Blinco
- Macromolecular Architectures , Institut für Technische Chemie und Polymerchemie , Karlsruhe Institute of Technology (KIT) , Engesserstraße 18 , 76128 Karlsruhe , Germany . .,School of Chemistry , Physics and Mechanical Engineering , Queensland University of Technology (QUT) , 2 George Street , QLD 4000 , Brisbane , Australia . ;
| | - Hatice Mutlu
- Macromolecular Architectures , Institut für Technische Chemie und Polymerchemie , Karlsruhe Institute of Technology (KIT) , Engesserstraße 18 , 76128 Karlsruhe , Germany . .,Soft Matter Synthesis Laboratory , Institut für Biologische Grenzflächen (IBG) , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Karlsruhe , Germany .
| | - Christopher Barner-Kowollik
- Macromolecular Architectures , Institut für Technische Chemie und Polymerchemie , Karlsruhe Institute of Technology (KIT) , Engesserstraße 18 , 76128 Karlsruhe , Germany . .,Soft Matter Synthesis Laboratory , Institut für Biologische Grenzflächen (IBG) , Karlsruhe Institute of Technology (KIT) , Hermann-von-Helmholtz-Platz 1 , 76344 Karlsruhe , Germany . .,School of Chemistry , Physics and Mechanical Engineering , Queensland University of Technology (QUT) , 2 George Street , QLD 4000 , Brisbane , Australia . ;
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31
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Moreno AJ, Bacova P, Lo Verso F, Arbe A, Colmenero J, Pomposo JA. Effect of chain stiffness on the structure of single-chain polymer nanoparticles. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2018; 30:034001. [PMID: 29206106 DOI: 10.1088/1361-648x/aa9f5c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Polymeric single-chain nanoparticles (SCNPs) are soft nano-objects synthesized by purely intramolecular cross-linking of single polymer chains. By means of computer simulations, we investigate the conformational properties of SCNPs as a function of the bending stiffness of their linear polymer precursors. We investigate a broad range of characteristic ratios from the fully flexible case to those typical of bulky synthetic polymers. Increasing stiffness hinders bonding of groups separated by short contour distances and increases looping over longer distances, leading to more compact nanoparticles with a structure of highly interconnected loops. This feature is reflected in a crossover in the scaling behaviour of several structural observables. The scaling exponents change from those characteristic for Gaussian chains or rings in θ-solvents in the fully flexible limit, to values resembling fractal or 'crumpled' globular behaviour for very stiff SCNPs. We characterize domains in the SCNPs. These are weakly deformable regions that can be seen as disordered analogues of domains in disordered proteins. Increasing stiffness leads to bigger and less deformable domains. Surprisingly, the scaling behaviour of the domains is in all cases similar to that of Gaussian chains or rings, irrespective of the stiffness and degree of cross-linking. It is the spatial arrangement of the domains which determines the global structure of the SCNP (sparse Gaussian-like object or crumpled globule). Since intramolecular stiffness can be varied through the specific chemistry of the precursor or by introducing bulky side groups in its backbone, our results propose a new strategy to tune the global structure of SCNPs.
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Affiliation(s)
- Angel J Moreno
- Centro de Física de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain. Donostia International Physics Center, Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
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32
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Li Y, Huth K, Garcia ES, Pedretti BJ, Bai Y, Vincil GA, Haag R, Zimmerman SC. Linear dendronized polyols as a multifunctional platform for a versatile and efficient fluorophore design. Polym Chem 2018. [DOI: 10.1039/c8py00193f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Linear dendronized polyols (LDPs)as a modular platform for bright, stable, and biocompatible polymeric fluorophores applicable for fluorescent bioimaging studies.
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Affiliation(s)
- Ying Li
- Department of Chemistry
- University of Illinois at Urbana-Champaign
- USA
| | - Katharina Huth
- Institute of Chemistry and Biochemistry – Organic Chemistry
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Edzna S. Garcia
- Department of Chemistry
- University of Illinois at Urbana-Champaign
- USA
| | | | - Yugang Bai
- Department of Chemistry
- University of Illinois at Urbana-Champaign
- USA
| | | | - Rainer Haag
- Institute of Chemistry and Biochemistry – Organic Chemistry
- Freie Universität Berlin
- 14195 Berlin
- Germany
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33
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Ekkelenkamp AE, Elzes MR, Engbersen JFJ, Paulusse JMJ. Responsive crosslinked polymer nanogels for imaging and therapeutics delivery. J Mater Chem B 2018; 6:210-235. [DOI: 10.1039/c7tb02239e] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nanogels are water-soluble crosslinked polymer networks with tremendous potential in targeted imaging and controlled drug and gene delivery.
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Affiliation(s)
- Antonie E. Ekkelenkamp
- Department of Biomolecular Nanotechnology
- MESA+ Institute for Nanotechnology
- Faculty of Science and Technology
- University of Twente
- Enschede
| | - M. Rachèl Elzes
- Department of Biomolecular Nanotechnology
- MESA+ Institute for Nanotechnology
- Faculty of Science and Technology
- University of Twente
- Enschede
| | - Johan F. J. Engbersen
- Department of Controlled Drug Delivery
- MIRA Institute for Biomedical Technology and Technical Medicine
- Faculty of Science and Technology
- University of Twente
- Enschede
| | - Jos M. J. Paulusse
- Department of Biomolecular Nanotechnology
- MESA+ Institute for Nanotechnology
- Faculty of Science and Technology
- University of Twente
- Enschede
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34
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Ma X, Shi X, Bai S, Zhang J, Hou M, Zhang T, Li BS, Xue P, Kang Y, Xu Z. Water-soluble fluorescent unimolecular micelles: ultra-small size, tunable fluorescence emission from the visible to NIR region and enhanced biocompatibility for in vitro and in vivo bioimaging. Chem Commun (Camb) 2018; 54:6252-6255. [DOI: 10.1039/c8cc02261e] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Water-soluble fluorescent unimolecular micelles with ultra-small size and various fluorescence emission for multicolor imaging.
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35
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De-La-Cuesta J, González E, Pomposo JA. Advances in Fluorescent Single-Chain Nanoparticles. Molecules 2017; 22:E1819. [PMID: 29072594 PMCID: PMC6150276 DOI: 10.3390/molecules22111819] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/23/2017] [Accepted: 10/25/2017] [Indexed: 01/28/2023] Open
Abstract
Fluorophore molecules can be monitored by fluorescence spectroscopy and microscopy, which are highly useful and widely used techniques in cell biology, biochemistry, and medicine (e.g., biomarker analysis, immunoassays, cancer diagnosis). Several fluorescent micro- and nanoparticle systems based on block copolymer micelles and cross-linked polymer networks, quantum dots, π-conjugated polymers, and dendrimers have been evaluated as optical imaging systems. In this review, we highlight recent advances in the construction of fluorescent single-chain nanoparticles (SCNPs), which are valuable artificial soft nano-objects with a small tunable size (as small as 3 nm). In particular, the main methods currently available to endow SCNPs with fluorescent properties are discussed in detail, showing illustrative examples.
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Affiliation(s)
- Julen De-La-Cuesta
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC, Materials Physics Center, Paseo Manuel de Lardizabal 5, E-20018 San Sebastian, Spain.
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU), 1072 Apartado, E-20080 San Sebastian, Spain.
| | - Edurne González
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC, Materials Physics Center, Paseo Manuel de Lardizabal 5, E-20018 San Sebastian, Spain.
| | - José A Pomposo
- Centro de Física de Materiales (CSIC, UPV/EHU)-MPC, Materials Physics Center, Paseo Manuel de Lardizabal 5, E-20018 San Sebastian, Spain.
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU), 1072 Apartado, E-20080 San Sebastian, Spain.
- IKERBASQUE-Basque Foundation for Science, María Díaz de Haro 3, E-48013 Bilbao, Spain.
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36
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Formanek M, Moreno AJ. Effects of precursor topology and synthesis under crowding conditions on the structure of single-chain polymer nanoparticles. SOFT MATTER 2017; 13:6430-6438. [PMID: 28876354 DOI: 10.1039/c7sm01547j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
By means of molecular dynamics simulations, we investigate the formation of single-chain nanoparticles through intramolecular cross-linking of polymer chains, in the presence of their precursors acting as purely steric crowders in concentrated solution. In the case of linear precursors, the structure of the resulting SCNPs is weakly affected by the density at which the synthesis is performed. Crowding has significant effects if ring precursors are used: higher concentrations lead to the formation of SCNPs with more compact and spherical morphologies. Such SCNPs retain in the swollen state (high dilution) the crumpled globular conformations adopted by the ring precursors in the crowded solutions. Increasing the concentration of both the linear and ring precursors up to 30% leads to faster formation of the respective SCNPs, prior to deceleration expected at higher densities. The results presented here propose promising new routes for the synthesis of globular SCNPs, which are usually elusive by conventional methods.
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Affiliation(s)
- Maud Formanek
- Centro de Física de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain.
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37
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Noh H, Kim HJ, Yang SK. Synthesis of amphiphilic homopolymers and their self-assembly into acid-responsive polymeric micelles. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28766] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Hyeongju Noh
- Department of Chemistry Education; Chonnam National University; Gwangju 61186 Korea
| | - Ho-Joong Kim
- Department of Chemistry; Chosun University; Gwangju 61452 Korea
| | - Si Kyung Yang
- Department of Chemistry Education; Chonnam National University; Gwangju 61186 Korea
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38
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De-La-Cuesta J, González E, Moreno AJ, Arbe A, Colmenero J, Pomposo JA. Size of Elastic Single-Chain Nanoparticles in Solution and on Surfaces. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01199] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Julen De-La-Cuesta
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
| | - Edurne González
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
| | - Angel J. Moreno
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Donostia International
Physics Center (DIPC), Paseo Manuel
de Lardizabal 4, E-20018 San Sebastián, Spain
| | - Arantxa Arbe
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
| | - Juan Colmenero
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Donostia International
Physics Center (DIPC), Paseo Manuel
de Lardizabal 4, E-20018 San Sebastián, Spain
- Departamento
de Física de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, E-20800 San Sebastián, Spain
| | - José A. Pomposo
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Departamento
de Física de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, E-20800 San Sebastián, Spain
- IKERBASQUE - Basque
Foundation for Science, María
Díaz de Haro 3, E-48013 Bilbao, Spain
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39
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Xing H, Bai Y, Bai Y, Tan LH, Tao J, Pedretti B, Vincil GA, Lu Y, Zimmerman SC. Bottom-Up Strategy To Prepare Nanoparticles with a Single DNA Strand. J Am Chem Soc 2017; 139:3623-3626. [PMID: 28263067 PMCID: PMC5831407 DOI: 10.1021/jacs.7b00065] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We describe the preparation of cross-linked, polymeric organic nanoparticles (ONPs) with a single, covalently linked DNA strand. The structure and functionalities of the ONPs are controlled by the synthesis of their parent linear block copolymers that provide monovalency, fluorescence and narrow size distribution. The ONP can also guide the deposition of chloroaurate ions allowing gold nanoparticles (AuNPs) to be prepared using the ONPs as templates. The DNA strand on AuNPs is shown to preserve its functions.
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Affiliation(s)
- Hang Xing
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
- Beckman Institute for Advance Science and Technology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Yugang Bai
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Yunhao Bai
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Li Huey Tan
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Jing Tao
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Benjamin Pedretti
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Gretchen A. Vincil
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Yi Lu
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
- Beckman Institute for Advance Science and Technology, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - Steven C. Zimmerman
- Department of Chemistry, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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40
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Pomposo JA, Rubio-Cervilla J, Moreno AJ, Lo Verso F, Bacova P, Arbe A, Colmenero J. Folding Single Chains to Single-Chain Nanoparticles via Reversible Interactions: What Size Reduction Can One Expect? Macromolecules 2017. [DOI: 10.1021/acs.macromol.6b02427] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- José A. Pomposo
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Departamento
de Física de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, E-20800 San Sebastián, Spain
- IKERBASQUE - Basque
Foundation for Science, María
Díaz de Haro 3, E-48013 Bilbao, Spain
| | - Jon Rubio-Cervilla
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Departamento
de Física de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, E-20800 San Sebastián, Spain
| | - Angel J. Moreno
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Donostia International
Physics Center (DIPC), Paseo Manuel
de Lardizabal 4, E-20018 San Sebastián, Spain
| | - Federica Lo Verso
- Donostia International
Physics Center (DIPC), Paseo Manuel
de Lardizabal 4, E-20018 San Sebastián, Spain
| | - Petra Bacova
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
| | - Arantxa Arbe
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
| | - Juan Colmenero
- Centro de Física
de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, E-20018 San Sebastián, Spain
- Departamento
de Física de Materiales, Universidad del País Vasco (UPV/EHU), Apartado 1072, E-20800 San Sebastián, Spain
- Donostia International
Physics Center (DIPC), Paseo Manuel
de Lardizabal 4, E-20018 San Sebastián, Spain
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41
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Heiler C, Offenloch JT, Blasco E, Barner-Kowollik C. Photochemically Induced Folding of Single Chain Polymer Nanoparticles in Water. ACS Macro Lett 2017; 6:56-61. [PMID: 35651105 DOI: 10.1021/acsmacrolett.6b00858] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We pioneer the synthesis of fluorescent single chain nanoparticles (SCNPs) via UV-light induced folding based on tetrazole chemistry directly in pure water. Water-soluble photoreactive precursor polymers based on poly(acrylic acid) (PAA) bearing tetrazole, alkene and tetraethylene glycol monomethyl ether moieties, (PAAn(Tet/p-Mal/TEG)), or simply tetrazoles moieties, PAAn(Tet), were generated via RAFT polymerization. While tetrazole, ene, and acrylic acid containing polymers fold via dual nitrile imine-mediated tetrazole-ene cycloaddition (NITEC) as well as nitrile imine-carboxylic acid ligation (NICAL), tetrazole and acrylic acid only functional prepolymers fold exclusively via NICAL. A detailed study of the underpinning photochemistry of NITEC and NICAL is also included. The resulting water-soluble SCNPs were carefully characterized via analytical techniques such as NMR, UV-vis, and fluorescence spectroscopy, as well as SEC and DLS.
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Affiliation(s)
- Carolin Heiler
- Preparative
Macromolecular Chemistry, Institut für Technische Chemie und
Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76131 Karlsruhe, Germany
- Institut
für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Janin T. Offenloch
- Preparative
Macromolecular Chemistry, Institut für Technische Chemie und
Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76131 Karlsruhe, Germany
- Institut
für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Eva Blasco
- Preparative
Macromolecular Chemistry, Institut für Technische Chemie und
Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76131 Karlsruhe, Germany
- Institut
für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Christopher Barner-Kowollik
- Preparative
Macromolecular Chemistry, Institut für Technische Chemie und
Polymerchemie, Karlsruhe Institute of Technology (KIT), Engesserstr. 18, 76131 Karlsruhe, Germany
- Institut
für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- School
of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, 2 George Street, Brisbane, QLD 4000, Australia
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42
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Sinclair F, Alkattan M, Prunet J, Shaver MP. Olefin cross metathesis and ring-closing metathesis in polymer chemistry. Polym Chem 2017. [DOI: 10.1039/c7py00340d] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of olefin cross metathesis in preparing functional polymers, through either pre-functionalisation of monomers or post-polymerisation functionalisation is growing in both scope and breadth, as discussed in this review article.
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Affiliation(s)
- Fern Sinclair
- EastCHEM School of Chemistry
- Joseph Black Building
- University of Edinburgh
- Edinburgh EH9 3FJ
- UK
| | - Mohammed Alkattan
- EastCHEM School of Chemistry
- Joseph Black Building
- University of Edinburgh
- Edinburgh EH9 3FJ
- UK
| | - Joëlle Prunet
- WestCHEM
- School of Chemistry
- University of Glasgow
- Glasgow
- UK
| | - Michael P. Shaver
- EastCHEM School of Chemistry
- Joseph Black Building
- University of Edinburgh
- Edinburgh EH9 3FJ
- UK
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43
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Wang F, Diesendruck CE. Advantages and limitations of diisocyanates in intramolecular collapse. Polym Chem 2017. [DOI: 10.1039/c7py00712d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A comprehensive examination of the synthesis of single chain polymer nanoparticles (SCPNs) from a copolymer of methyl acrylate (MA) and 2-hydroxyethyl acrylate (HEA) via the intra-chain urethane formation by using hexamethylene diisocyanate (HDI) as a cross-linker is described.
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Affiliation(s)
- Feng Wang
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Institute
- Technion – Israel Institute of Technology
- Haifa
- Israel
| | - Charles E. Diesendruck
- Schulich Faculty of Chemistry and Russell-Berrie Nanotechnology Institute
- Technion – Israel Institute of Technology
- Haifa
- Israel
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44
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Bai Y, Feng X, Xing H, Xu Y, Kim BK, Baig N, Zhou T, Gewirth AA, Lu Y, Oldfield E, Zimmerman SC. A Highly Efficient Single-Chain Metal-Organic Nanoparticle Catalyst for Alkyne-Azide "Click" Reactions in Water and in Cells. J Am Chem Soc 2016; 138:11077-80. [PMID: 27529791 DOI: 10.1021/jacs.6b04477] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We show that copper-containing metal-organic nanoparticles (MONPs) are readily synthesized via Cu(II)-mediated intramolecular cross-linking of aspartate-containing polyolefins in water. In situ reduction with sodium ascorbate yields Cu(I)-containing MONPs that serve as highly efficient supramolecular catalysts for alkyne-azide "click chemistry" reactions, yielding the desired 1,4-adducts at low parts per million catalyst levels. The nanoparticles have low toxicity and low metal loadings, making them convenient, green catalysts for alkyne-azide "click" reactions in water. The Cu-MONPs enter cells and perform efficient, biocompatible click chemistry, thus acting as intracellular nanoscale molecular synthesizers.
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Affiliation(s)
- Yugang Bai
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Xinxin Feng
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Hang Xing
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States.,Beckman Institute, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Yanhua Xu
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Boo Kyung Kim
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Noman Baig
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Tianhui Zhou
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Andrew A Gewirth
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Yi Lu
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States.,Beckman Institute, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Eric Oldfield
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Steven C Zimmerman
- Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
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45
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Moreno AJ, Lo Verso F, Arbe A, Pomposo JA, Colmenero J. Concentrated Solutions of Single-Chain Nanoparticles: A Simple Model for Intrinsically Disordered Proteins under Crowding Conditions. J Phys Chem Lett 2016; 7:838-844. [PMID: 26894933 DOI: 10.1021/acs.jpclett.6b00144] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
By means of large-scale computer simulations and small-angle neutron scattering (SANS), we investigate solutions of single-chain nanoparticles (SCNPs), covering the whole concentration range from infinite dilution to melt density. The analysis of the conformational properties of the SCNPs reveals that these synthetic nano-objects share basic ingredients with intrinsically disordered proteins (IDPs), as topological polydispersity, generally sparse conformations, and locally compact domains. We investigate the role of the architecture of the SCNPs in their collapse behavior under macromolecular crowding. Unlike in the case of linear macromolecules, which experience the usual transition from self-avoiding to Gaussian random-walk conformations, crowding leads to collapsed conformations of SCNPs resembling those of crumpled globules. This behavior is already found at volume fractions (about 30%) that are characteristic of crowding in cellular environments. The simulation results are confirmed by the SANS experiments. Our results for SCNPs--a model system free of specific interactions--propose a general scenario for the effect of steric crowding on IDPs: collapse from sparse conformations at high dilution to crumpled globular conformations in cell environments.
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Affiliation(s)
- Angel J Moreno
- Centro de Física de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
| | - Federica Lo Verso
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
| | - Arantxa Arbe
- Centro de Física de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
| | - José A Pomposo
- Centro de Física de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU) , Apartado 1072, E-20800 San Sebastián, Spain
- IKERBASQUE - Basque Foundation for Science, Alameda Urquijo 36, E-48011 Bilbao, Spain
| | - Juan Colmenero
- Centro de Física de Materiales (CSIC, UPV/EHU) and Materials Physics Center MPC, Paseo Manuel de Lardizabal 5, 20018 San Sebastián, Spain
- Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 San Sebastián, Spain
- Departamento de Física de Materiales, Universidad del País Vasco (UPV/EHU) , Apartado 1072, E-20800 San Sebastián, Spain
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46
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Latorre-Sánchez A, Pomposo JA. Recent bioinspired applications of single-chain nanoparticles. POLYM INT 2016. [DOI: 10.1002/pi.5078] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alejandro Latorre-Sánchez
- Centro de Física de Materiales (CSIC, UPV/EHU) − Materials Physics Centre; Paseo Manuel de Lardizabal 5 E-20018 San Sebastián Spain
- Departamento de Física de Materiales; Universidad del País Vasco (UPV/EHU); Apartado 1072 E-20800 San Sebastián Spain
| | - José A Pomposo
- Centro de Física de Materiales (CSIC, UPV/EHU) − Materials Physics Centre; Paseo Manuel de Lardizabal 5 E-20018 San Sebastián Spain
- Departamento de Física de Materiales; Universidad del País Vasco (UPV/EHU); Apartado 1072 E-20800 San Sebastián Spain
- IKERBASQUE − Basque Foundation for Science; María Díaz de Haro 3 E48013 Bilbao Spain
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47
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Feng K, Xie N, Chen B, Tung CH, Wu LZ. Modular Design of Poly(norbornenes) for Organelle-Specific Imaging in Tumor Cells. Biomacromolecules 2016; 17:538-45. [PMID: 26762279 DOI: 10.1021/acs.biomac.5b01450] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Through modular ROMP (ring-opening metathesis polymerization) directly from monomeric norbornenes of bioactive peptides, rhodamine B chromophore, and PEG solubilizer, we designed and synthesized a series of water-soluble poly(norbornenes) with organelle-specific imaging capability in tumor cells. For the selection of FxrFxK, TAT, and SV40 peptide sequences, these fluorescence probes exhibited different targeting specificity toward mitochondria, lysosome, and nucleolus, respectively, based on the same poly(norbornene) backbonds. More importantly, the ROMP strategy enables selective combination from various monomers and allows programmable biofunctionalization via peptide sequence permutations, which would greatly extend the biomedical applications such as imaging, diagnosis, and therapy for these synthetic polymers.
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Affiliation(s)
- Ke Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences , Beijing 100190, People's Republic of China
| | - Nan Xie
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, School of Chemical Biology and Pharmaceutical Sciences, Capital Medical University , Beijing 100069, People's Republic of China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences , Beijing 100190, People's Republic of China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences , Beijing 100190, People's Republic of China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences , Beijing 100190, People's Republic of China
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48
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Watanabe K, Tanaka R, Takada K, Kim MJ, Lee JS, Tajima K, Isono T, Satoh T. Intramolecular olefin metathesis as a robust tool to synthesize single-chain nanoparticles in a size-controlled manner. Polym Chem 2016. [DOI: 10.1039/c6py00795c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A comprehensive investigation of ruthenium-catalyzed intramolecular olefin metathesis was conducted for establishing a general approach to synthesize size-controlled SCNPs.
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Affiliation(s)
- Kodai Watanabe
- Graduate School of Chemical Sciences and Engineering, and Division of Applied Chemistry
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Ryoto Tanaka
- Graduate School of Chemical Sciences and Engineering, and Division of Applied Chemistry
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Kenji Takada
- Graduate School of Chemical Sciences and Engineering, and Division of Applied Chemistry
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Myung-Jin Kim
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 61005
- Korea
| | - Jae-Suk Lee
- School of Materials Science and Engineering
- Gwangju Institute of Science and Technology (GIST)
- Gwangju 61005
- Korea
| | - Kenji Tajima
- Graduate School of Chemical Sciences and Engineering, and Division of Applied Chemistry
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Takuya Isono
- Graduate School of Chemical Sciences and Engineering, and Division of Applied Chemistry
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
| | - Toshifumi Satoh
- Graduate School of Chemical Sciences and Engineering, and Division of Applied Chemistry
- Faculty of Engineering
- Hokkaido University
- Sapporo 060-8628
- Japan
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49
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Xie N, Feng K, Chen B, Tung CH, Wu LZ. Switchable two-photon imaging of RGD-functionalized polynorbornenes with enhanced cellular uptake in living cells. NEW J CHEM 2016. [DOI: 10.1039/c6nj00029k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Two-photon imaging polynorbornenes were fabricated directly from photochromic spiropyran, RGD peptides and hydrophilic PEG monomers via modular ROMP.
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Affiliation(s)
- Nan Xie
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs
- Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China
- Beijing Laboratory of Biomedical Materials
- School of Chemical Biology and Pharmaceutical Sciences
- Capital Medical University
| | - Ke Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences
- Beijing 100190
- P. R. China
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50
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Li Y, Bai Y, Zheng N, Liu Y, Vincil GA, Pedretti BJ, Cheng J, Zimmerman SC. Crosslinked dendronized polyols as a general approach to brighter and more stable fluorophores. Chem Commun (Camb) 2016; 52:3781-4. [DOI: 10.1039/c5cc09430e] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorescent, aqueous-soluble, crosslinked dendronized polyols (CDPs) are obtained through a sequential process involving ring-opening metathesis polymerization (ROMP), intra-chain ring-closing metathesis (RCM), and hydrolysis.
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Affiliation(s)
- Ying Li
- Department of Chemistry
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Yugang Bai
- Department of Chemistry
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Nan Zheng
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Yang Liu
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Gretchen A. Vincil
- Department of Chemistry
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | | | - Jianjun Cheng
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
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