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Stellpflug A, Walls J, Hansen C, Joshi A, Wang B. From bone to nanoparticles: development of a novel generation of bone derived nanoparticles for image guided orthopedic regeneration. Biomater Sci 2024; 12:3633-3648. [PMID: 38856671 PMCID: PMC11238765 DOI: 10.1039/d4bm00391h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Bone related diseases such as osteoporosis, osteoarthritis, metastatic bone cancer, osteogenesis imperfecta, and Paget's disease, are primarily treated with pharmacologic therapies that often exhibit limited efficacy and substantial side effects. Bone injuries or fractures are primarily repaired with biocompatible materials that produce mixed results in sufficiently regenerating healthy and homogenous bone tissue. Each of these bone conditions, both localized and systemic, use different strategies with the same goal of achieving a healthy and homeostatic bone environment. In this study, we developed a new type of bone-based nanoparticle (BPs) using the entire organic extracellular matrix (ECM) of decellularized porcine bone, additionally encapsulating indocyanine green dye (ICG) for an in vivo monitoring capability. Utilizing the regenerative capability of bone ECM and the functionality of nanoparticles, the ICG encapsulated BPs (ICG/BPs) have been demonstrated to be utilized as a therapeutic option for localized and systemic orthopedic conditions. Additionally, ICG enables an in situ monitoring capability in the Short-Wave Infrared (SWIR) spectrum, capturing the degradation or the biodistribution of the ICG/BPs after both local implantation and intravenous administration, respectively. The efficacy and safety of the ICG/BPs shown within this study lay the foundation for future investigations, which will delve into optimization for clinical translation.
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Affiliation(s)
- Austin Stellpflug
- Joint Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, WI 53226, USA.
| | - Jacob Walls
- Joint Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, WI 53226, USA.
| | - Christopher Hansen
- Joint Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, WI 53226, USA.
| | - Amit Joshi
- Joint Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, WI 53226, USA.
| | - Bo Wang
- Joint Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, WI 53226, USA.
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Control on Pt-containing ordered honeycomb mesoporous nanostructures via self-assembly of block copolymer. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Kumar L, Horechyy A, Paturej J, Nandan B, Kłos JS, Sommer JU, Fery A. Encapsulation of Nanoparticles into Preformed Block Copolymer Micelles Driven by Competitive Solvation: Experimental Studies and Molecular Dynamic Simulations. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Labeesh Kumar
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069Dresden, Germany
| | - Andriy Horechyy
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069Dresden, Germany
| | - Jarosław Paturej
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069Dresden, Germany
- Institute of Physics, University of Silesia, Chorzów, 41-500, Poland
| | - Bhanu Nandan
- Department of Textile and Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi110016, India
| | - Jarosław S. Kłos
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069Dresden, Germany
- Faculty of Physics, A. Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614Poznań, Poland
| | - Jens-Uwe Sommer
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069Dresden, Germany
- Institute for Theoretical Physics, Technische Universität Dresden, Dresden01062, Germany
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069Dresden, Germany
- Physical Chemistry of Polymer Materials, Technische Universität Dresden, Dresden01062, Germany
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Modeling the Phase Equilibria of Associating Polymers in Porous Media with Respect to Chromatographic Applications. Polymers (Basel) 2022; 14:polym14153182. [PMID: 35956697 PMCID: PMC9370872 DOI: 10.3390/polym14153182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/31/2022] [Accepted: 07/31/2022] [Indexed: 11/28/2022] Open
Abstract
Associating copolymers self-assemble during their passage through a liquid chromatography (LC) column, and the elution differs from that of common non-associating polymers. This computational study aims at elucidating the mechanism of their unique and intricate chromatographic behavior. We focused on amphiphilic diblock copolymers in selective solvents, performed the Monte Carlo (MC) simulations of their partitioning between a bulk solvent (mobile phase) and a cylindrical pore (stationary phase), and investigated the concentration dependences of the partition coefficient and of other functions describing the phase behavior. The observed abruptly changing concentration dependences of the effective partition coefficient demonstrate the significant impact of the association of copolymers with their partitioning between the two phases. The performed simulations reveal the intricate interplay of the entropy-driven and the enthalpy-driven processes, elucidate at the molecular level how the self-assembly affects the chromatographic behavior, and provide useful hints for the analysis of experimental elution curves of associating polymers.
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Control on Pt-Containing Ordered Honeycomb Mesoporous Nanostructures via Self-Assembly of Block Copolymer. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Hybrid Time-Dependent Ginzburg–Landau Simulations of Block Copolymer Nanocomposites: Nanoparticle Anisotropy. Polymers (Basel) 2022; 14:polym14091910. [PMID: 35567080 PMCID: PMC9103753 DOI: 10.3390/polym14091910] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/27/2022] [Accepted: 05/02/2022] [Indexed: 11/16/2022] Open
Abstract
Block copolymer melts are perfect candidates to template the position of colloidal nanoparticles in the nanoscale, on top of their well-known suitability for lithography applications. This is due to their ability to self-assemble into periodic ordered structures, in which nanoparticles can segregate depending on the polymer–particle interactions, size and shape. The resulting coassembled structure can be highly ordered as a combination of both the polymeric and colloidal properties. The time-dependent Ginzburg–Landau model for the block copolymer was combined with Brownian dynamics for nanoparticles, resulting in an efficient mesoscopic model to study the complex behaviour of block copolymer nanocomposites. This review covers recent developments of the time-dependent Ginzburg–Landau/Brownian dynamics scheme. This includes efforts to parallelise the numerical scheme and applications of the model. The validity of the model is studied by comparing simulation and experimental results for isotropic nanoparticles. Extensions to simulate nonspherical and inhomogeneous nanoparticles are discussed and simulation results are discussed. The time-dependent Ginzburg–Landau/Brownian dynamics scheme is shown to be a flexible method which can account for the relatively large system sizes required to study block copolymer nanocomposite systems, while being easily extensible to simulate nonspherical nanoparticles.
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Vargo E, Evans KM, Wang Q, Sattler A, Qian Y, Yao J, Xu T. Orbital Angular Momentum from Self-Assembled Concentric Nanoparticle Rings. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2103563. [PMID: 34418190 DOI: 10.1002/adma.202103563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/23/2021] [Indexed: 06/13/2023]
Abstract
Ring-shaped nanostructures can focus, filter, and manipulate electromagnetic waves, but are challenging to incorporate into devices using standard nanofabrication techniques. Directed self-assembly (DSA) of block copolymers (BCPs) on lithographically patterned templates has successfully been used to fabricate concentric rings and spirals as etching masks. However, this method is limited by BCP phase behavior and material selection. Here, a straightforward approach to generate ring-shaped nanoparticle assemblies in thin films of supramolecular nanocomposites is demonstrated. DSA is used to guide the formation of concentric rings with radii spanning 150-1150 nm and ring widths spanning 30-60 nm. When plasmonic nanoparticles are used, ring nanodevice arrays can be fabricated in one step, and the completed devices produce high-quality orbital angular momentum (OAM). Nanocomposite DSA simplifies and streamlines nanofabrication by producing metal structures without etching or deposition steps; it also introduces interparticle coupling as a new design axis. Detailed analysis of the nanoparticle ring assemblies confirms that the supramolecular system self-regulates the spatial distribution of its components, and thus exhibits a degree of flexibility absent in DSA of BCPs alone, where structures are determined by polymer-pattern incommensurability. The present studies also provide guidelines for developing self-regulating DSA as an alternative to incommensurability-driven methods.
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Affiliation(s)
- Emma Vargo
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, CA, 94720, USA
| | - Katherine M Evans
- Department of Chemistry, University of California at Berkeley, Berkeley, CA, 94720, USA
| | - Qingjun Wang
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, CA, 94720, USA
| | - Andrew Sattler
- Department of Chemistry, University of California at Berkeley, Berkeley, CA, 94720, USA
| | - Yiwen Qian
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, CA, 94720, USA
| | - Jie Yao
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, CA, 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Ting Xu
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, CA, 94720, USA
- Department of Chemistry, University of California at Berkeley, Berkeley, CA, 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
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