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Moitra P, Skrodzki D, Molinaro M, Gunaseelan N, Sar D, Aditya T, Dahal D, Ray P, Pan D. Context-Responsive Nanoparticle Derived from Synthetic Zwitterionic Ionizable Phospholipids in Targeted CRISPR/Cas9 Therapy for Basal-like Breast Cancer. ACS NANO 2024; 18:9199-9220. [PMID: 38466962 DOI: 10.1021/acsnano.4c01400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
The majority of triple negative breast cancers (TNBCs) are basal-like breast cancers (BLBCs), which tend to be more aggressive, proliferate rapidly, and have poor clinical outcomes. A key prognostic biomarker and regulator of BLBC is the Forkhead box C1 (FOXC1) transcription factor. However, because of its functional placement inside the cell nucleus and its structural similarity with other related proteins, targeting FOXC1 for therapeutic benefit, particularly for BLBC, continues to be difficult. We envision targeted nonviral delivery of CRISPR/Cas9 plasmid toward the efficacious knockdown of FOXC1. Keeping in mind the challenges associated with the use of CRISPR/Cas9 in vivo, including off-targeting modifications, and effective release of the cargo, a nanoparticle with context responsive properties can be designed for efficient targeted delivery of CRISPR/Cas9 plasmid. Consequently, we have designed, synthesized, and characterized a zwitterionic amino phospholipid-derived transfecting nanoparticle for delivery of CRISPR/Cas9. The construct becomes positively charged only at low pH, which encourages membrane instability and makes it easier for nanoparticles to exit endosomes. This has enabled effective in vitro and in vivo downregulation of protein expression and genome editing. Following this, we have used EpCAM aptamer to make the system targeted toward BLBC cell lines and to reduce its off-target toxicity. The in vivo efficacy, biodistribution, preliminary pharmacokinetics, and biosafety of the optimized targeted CRISPR nanoplatform is then validated in a rodent xenograft model. Overall, we have attempted to knockout the proto-oncogenic FOXC1 expression in BLBC cases by efficient delivery of CRISPR effectors via a context-responsive nanoparticle delivery system derived from a designer lipid derivative. We believe that the nonviral approach for in vitro and in vivo delivery of CRISPR/Cas9 targeted toward FOXC1, studied herein, will greatly emphasize the therapeutic regimen for BLBC.
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Affiliation(s)
- Parikshit Moitra
- Department of Nuclear Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Pediatrics, Centre of Blood Oxygen Transport & Hemostasis, University of Maryland-Baltimore School of Medicine, Baltimore, Maryland 21201, United States
- Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - David Skrodzki
- Department of Pediatrics, Centre of Blood Oxygen Transport & Hemostasis, University of Maryland-Baltimore School of Medicine, Baltimore, Maryland 21201, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Matthew Molinaro
- Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Nivetha Gunaseelan
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Dinabandhu Sar
- Department of Bioengineering, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Teresa Aditya
- Department of Nuclear Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Dipendra Dahal
- Department of Pediatrics, Centre of Blood Oxygen Transport & Hemostasis, University of Maryland-Baltimore School of Medicine, Baltimore, Maryland 21201, United States
| | - Priyanka Ray
- Department of Chemical & Biochemical Engineering, University of Maryland-Baltimore County, Baltimore County, Maryland 21250, United States
| | - Dipanjan Pan
- Department of Nuclear Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Pediatrics, Centre of Blood Oxygen Transport & Hemostasis, University of Maryland-Baltimore School of Medicine, Baltimore, Maryland 21201, United States
- Center for Infectious Disease Dynamics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Bioengineering, University of Illinois, Urbana-Champaign, Urbana, Illinois 61801, United States
- Department of Chemical & Biochemical Engineering, University of Maryland-Baltimore County, Baltimore County, Maryland 21250, United States
- Huck Institutes of the Life Sciences, 101 Huck Life Sciences Building, University Park, Pennsylvania 16802, United States
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2
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Baeckmann C, Martínez-Esaín J, Suárez del Pino JA, Meng L, Garcia-Masferrer J, Faraudo J, Sort J, Carné-Sánchez A, Maspoch D. Porous and Meltable Metal-Organic Polyhedra for the Generation and Shaping of Porous Mixed-Matrix Composites. J Am Chem Soc 2024; 146:7159-7164. [PMID: 38467030 PMCID: PMC10958503 DOI: 10.1021/jacs.4c00407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/05/2024] [Accepted: 03/06/2024] [Indexed: 03/13/2024]
Abstract
Here, we report the synthesis of BCN-93, a meltable, functionalized, and permanently porous metal-organic polyhedron (MOP) and its subsequent transformation into amorphous or crystalline, shaped, self-standing, transparent porous films via melting and subsequent cooling. The synthesis entails the outer functionalization of a MOP with meltable polymer chains: in our model case, we functionalized a Rh(II)-based cuboctahedral MOP with poly(ethylene glycol). Finally, we demonstrate that once melted, BCN-93 can serve as a porous matrix into which other materials or molecules can be dispersed to form mixed-matrix composites. To illustrate this, we combined BCN-93 with one of various additives (either two MOF crystals, a porous cage, or a linear polymer) to generate a series of mixed-matrix films, each of which exhibited greater CO2 uptake relative to the parent film.
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Affiliation(s)
- Cornelia
von Baeckmann
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The
Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Spain
- Departament
de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Jordi Martínez-Esaín
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The
Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Spain
| | - José A. Suárez del Pino
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The
Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Spain
- Departament
de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Lingxin Meng
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The
Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Spain
- Departament
de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | | | - Jordi Faraudo
- Institut
de Ciència de Materials de Barcelona (ICMAB-CSIC), 08193 Bellaterra, Spain
| | - Jordi Sort
- Departament
de Física, Universitat Autònoma
de Barcelona, 08193 Bellaterra, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Arnau Carné-Sánchez
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The
Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Spain
- Departament
de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Daniel Maspoch
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and The
Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Spain
- Departament
de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
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3
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Arshad A, Roy A, Mallick TK, Tahir AA. Shape-Stabilized PEGylated Silica Aerogel-Composite as an Energy Saving Building Material. Ind Eng Chem Res 2023; 62:20236-20250. [PMID: 38045733 PMCID: PMC10690784 DOI: 10.1021/acs.iecr.3c02373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/24/2023] [Accepted: 11/02/2023] [Indexed: 12/05/2023]
Abstract
Balancing thermal and visual comfort in buildings necessitates effective insulation to counteract heat loss and gain, especially with temperature variances. One promising approach is to combine phase change materials, such as poly(ethylene glycol) (PEG), with high-performance insulators like silica aerogel (Siag). To bolster opto-thermal performance in building envelopes, we introduce a smart insulation composite material through PEG integration, i.e., PEGalyation with Siag. Central to this thermal behavior is the PEG's phase change properties, which foster a shape-stabilized framework with Siag through their porous confinement. Preliminary observations indicate notable capabilities of obstructing near-infrared light while preserving satisfactory visible transparency. An optimized Siag@PEG composite with 5% loading of PEG has the visible range transmission of ∼92%, a decrease of ∼72% in thermal conductivity which is lower than pure glass and PEG, leading to a temperature dependent switchable hydrophobic to hydrophilic wettability characteristics. As a prototype window, the thermal performance evaluation of the synthesized composite, through experimental and computational studies, shows a decrease in indoor temperature of ∼20% with a higher temperature difference of ∼20 °C between outdoor and indoor weather conditions. This lightweight composite can act as sponge media to fill inside the double-paned window and for retrofitting existing glazing to boost the energy efficiency of buildings with facile manufacturing and scalability.
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Affiliation(s)
| | | | - Tapas K. Mallick
- Solar Energy Research Group,
Environment and Sustainability Institute, University of Exeter, Penryn
Campus, Cornwall TR10 9FE, U.K.
| | - Asif Ali Tahir
- Solar Energy Research Group,
Environment and Sustainability Institute, University of Exeter, Penryn
Campus, Cornwall TR10 9FE, U.K.
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Nistor CL, Gifu IC, Anghel EM, Ianchis R, Cirstea CD, Nicolae CA, Gabor AR, Atkinson I, Petcu C. Novel PEG 6000-Silica-MWCNTs Shape-Stabilized Composite Phase-Change Materials (ssCPCMs) for Thermal-Energy Storage. Polymers (Basel) 2023; 15:3022. [PMID: 37514413 PMCID: PMC10386010 DOI: 10.3390/polym15143022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
This paper describes the preparation of new PEG6000-silica-MWCNTs composites as shape-stabilized phase change materials (ssPCMs) for application in latent heat storage. An innovative method was employed to obtain the new organic-inorganic hybrid materials, in which both a part of the PEG chains, used as the phase change material, and a part of the hydroxyl functionalized multiwall carbon nanotubes (MWCNTs-OH), used as thermo-conductive fillers, were covalently connected by newly formed urethane bonds to the in-situ-generated silica matrix. The study's main aim was to investigate the optimal amount of PEG6000 that can be added to the fixed sol-gel reaction mixture so that no leakage of PEG occurs after repeated heating-cooling cycles. The findings show that the optimum PEG6000/NCOTEOS molar ratio was 2/1 (~91.5% PEG6000), because both the connected and free PEG chains interacted strongly with the in-situ-generated silica matrix to form a shape-stabilized material while preserving high phase-transition enthalpies (~153 J/G). Morphological and structural findings obtained by SEM, X-ray and Raman techniques indicated a distribution of the silica component in the amorphous phase (~27% for the optimum composition) located among the crystalline lamellae built by the folded chains of the PEG component. This composite maintained good chemical stability after a 450-cycle thermal test and had a good storage efficiency (~84%).
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Affiliation(s)
- Cristina Lavinia Nistor
- Polymers Department, National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Ioana Catalina Gifu
- Polymers Department, National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Elena Maria Anghel
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Raluca Ianchis
- Polymers Department, National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Cristiana-Diana Cirstea
- National Institute for Research and Development in Electrical Engineering ICPE-CA, INCDIE ICPE-CA, 313 Splaiul Unirii Street, 030138 Bucharest, Romania
| | - Cristian Andi Nicolae
- Polymers Department, National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Augusta Raluca Gabor
- Polymers Department, National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Irina Atkinson
- Institute of Physical Chemistry "Ilie Murgulescu" of the Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Cristian Petcu
- Polymers Department, National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Spl. Independentei, 060021 Bucharest, Romania
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5
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Höppener C, Elter JK, Schacher FH, Deckert V. Inside Block Copolymer Micelles-Tracing Interfacial Influences on Crosslinking Efficiency in Nanoscale Confined Spaces. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206451. [PMID: 36806886 DOI: 10.1002/smll.202206451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 01/22/2023] [Indexed: 05/18/2023]
Abstract
Recently, several studies have demonstrated the excellent capabilities of tip-enhanced Raman spectroscopyfor in-depth investigations of structural properties of matter with unprecedented resolution and chemical specificity. These capabilities are utilized here to study the internal structure of core-crosslinked micelles, which are formed by self-assembly of the diblock terpolymer poly(ethylene oxide)-block-poly(furfuryl glycidylether-co-tert-butylglycidyl ether). Supplementing force-volume atomic force microscopy experiments address additionally the nanomechanical properties. Particularly, TERS enables investigating the underlying principles influencing the homogeneity and efficiency of the Diels-Alder core-crosslinking process in the confined hydrophobic core. While the central core region is homogenously crosslinked, a breakdown of the crosslinking reaction is observed in the core-corona interfacial region. The results corroborate that a strong crosslinking efficiency is directly correlated to the formation of a mixed zone of the glycidyl ether and PEO corona blocks reaching ≈5 nm into the core region. Concomitantly a strong exclusion of the encapsulated bismaleimide crosslinker from the interfacial region is observed. It is conceivable that a changed structure, chemical composition and altered nanomechanical properties of this interfacial region may also influence the crosslinking efficiency across the entire core region by a modification of the solubility of the crosslinker in the interfacial core-corona region.
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Affiliation(s)
- Christiane Höppener
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Straße 9, D-07745, Jena, Germany
| | - Johanna K Elter
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University, Lessingstraße 8, D-07743, Jena, Germany
| | - Felix H Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich Schiller University, Lessingstraße 8, D-07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University, Philosophenweg 7, D-07743, Jena, Germany
| | - Volker Deckert
- Leibniz Institute of Photonic Technology (IPHT), Albert-Einstein-Straße 9, D-07745, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University, Philosophenweg 7, D-07743, Jena, Germany
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6
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Foo W, Cseresnyés Z, Rössel C, Teng Y, Ramoji A, Chi M, Hauswald W, Huschke S, Hoeppener S, Popp J, Schacher FH, Sierka M, Figge MT, Press AT, Bauer M. Tuning the corona-core ratio of polyplex micelles for selective oligonucleotide delivery to hepatocytes or hepatic immune cells. Biomaterials 2023; 294:122016. [PMID: 36702000 DOI: 10.1016/j.biomaterials.2023.122016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 01/06/2023] [Accepted: 01/14/2023] [Indexed: 01/22/2023]
Abstract
Targeted delivery of oligonucleotides or small molecular drugs to hepatocytes, the liver's parenchymal cells, is challenging without targeting moiety due to the highly efficient mononuclear phagocyte system (MPS) of the liver. The MPS comprises Kupffer cells and specialized sinusoidal endothelial cells, efficiently clearing nanocarriers regardless of their size and surface properties. Physiologically, this non-parenchymal shield protects hepatocytes; however, these local barriers must be overcome for drug delivery. Nanocarrier structural properties strongly influence tissue penetration, in vivo pharmacokinetics, and biodistribution profile. Here we demonstrate the in vivo biodistribution of polyplex micelles formed by polyion complexation of short interfering (si)RNA with modified poly(ethylene glycol)-block-poly(allyl glycidyl ether) (PEG-b-PAGE) diblock copolymer that carries amino moieties in the side chain. The ratio between PEG corona and siRNA complexed PAGE core of polyplex micelles was chemically varied by altering the degree of polymerization of PAGE. Applying Raman-spectroscopy and dynamic in silico modeling on the polyplex micelles, we determined the corona-core ratio (CCR) and visualized the possible micellar structure with varying CCR. The results for this model system reveal that polyplex micelles with higher CCR, i.e., better PEG coverage, exclusively accumulate and thus allow passive cell-type-specific targeting towards hepatocytes, overcoming the macrophage-rich reticuloendothelial barrier of the liver.
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Affiliation(s)
- WanLing Foo
- Jena University Hospital, Department of Anesthesiology and Intensive Care Medicine, Am Klinikum 1, 07747, Jena, Germany
| | - Zoltán Cseresnyés
- Applied Systems Biology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knoell Institute, Research Group Applied Systems Biology, Beutenbergstraße 13, 07745, Jena, Germany
| | - Carsten Rössel
- Friedrich-Schiller-University, Jena Center for Soft Matter, Philosophenweg 7, 07743, Jena, Germany; Friedrich-Schiller-University, Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Humboldtstraße 10, 07743, Jena, Germany
| | - Yingfeng Teng
- Friedrich-Schiller-University, Computational Materials Science Group, Otto Schott Institute of Materials Research, Faculty of Physics and Astronomy, Löbdergraben 32, 07743, Jena, Germany
| | - Anuradha Ramoji
- Leibniz Institute of Photonic Technology, Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Albert-Einstein-Straße 9, 07745, Jena, Germany; Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP), Friedrich-Schiller-University, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743, Jena, Germany; Jena University Hospital, Center for Sepsis Control and Care, Friedrich-Schiller-University, Am Klinikum 1, 07747, Jena, Germany
| | - Mingzhe Chi
- Friedrich-Schiller-University, Computational Materials Science Group, Otto Schott Institute of Materials Research, Faculty of Physics and Astronomy, Löbdergraben 32, 07743, Jena, Germany
| | - Walter Hauswald
- Leibniz Institute of Photonic Technology, Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Albert-Einstein-Straße 9, 07745, Jena, Germany
| | - Sophie Huschke
- Jena University Hospital, Department of Anesthesiology and Intensive Care Medicine, Am Klinikum 1, 07747, Jena, Germany
| | - Stephanie Hoeppener
- Applied Systems Biology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knoell Institute, Research Group Applied Systems Biology, Beutenbergstraße 13, 07745, Jena, Germany; Friedrich-Schiller-University, Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Humboldtstraße 10, 07743, Jena, Germany
| | - Jürgen Popp
- Leibniz Institute of Photonic Technology, Member of Leibniz Health Technologies, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Albert-Einstein-Straße 9, 07745, Jena, Germany; Institute of Physical Chemistry (IPC) and Abbe Center of Photonics (ACP), Friedrich-Schiller-University, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743, Jena, Germany; Jena University Hospital, Center for Sepsis Control and Care, Friedrich-Schiller-University, Am Klinikum 1, 07747, Jena, Germany
| | - Felix H Schacher
- Friedrich-Schiller-University, Jena Center for Soft Matter, Philosophenweg 7, 07743, Jena, Germany; Friedrich-Schiller-University, Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Humboldtstraße 10, 07743, Jena, Germany
| | - Marek Sierka
- Friedrich-Schiller-University, Jena Center for Soft Matter, Philosophenweg 7, 07743, Jena, Germany; Friedrich-Schiller-University, Computational Materials Science Group, Otto Schott Institute of Materials Research, Faculty of Physics and Astronomy, Löbdergraben 32, 07743, Jena, Germany
| | - Marc Thilo Figge
- Applied Systems Biology, Leibniz Institute for Natural Product Research and Infection Biology - Hans Knoell Institute, Research Group Applied Systems Biology, Beutenbergstraße 13, 07745, Jena, Germany; Institute of Microbiology, Faculty of Biological Sciences, Friedrich-Schiller-University Jena, 07743, Jena, Germany; Friedrich-Schiller-University, Jena Center for Soft Matter, Philosophenweg 7, 07743, Jena, Germany
| | - Adrian T Press
- Jena University Hospital, Department of Anesthesiology and Intensive Care Medicine, Am Klinikum 1, 07747, Jena, Germany; Friedrich-Schiller-University, Jena Center for Soft Matter, Philosophenweg 7, 07743, Jena, Germany; Jena University Hospital, Center for Sepsis Control and Care, Friedrich-Schiller-University, Am Klinikum 1, 07747, Jena, Germany; Friedrich-Schiller-University, Faculty of Medicine, Kastanienstraße. 1, 07747, Jena, Germany.
| | - Michael Bauer
- Jena University Hospital, Department of Anesthesiology and Intensive Care Medicine, Am Klinikum 1, 07747, Jena, Germany; Friedrich-Schiller-University, Jena Center for Soft Matter, Philosophenweg 7, 07743, Jena, Germany; Jena University Hospital, Center for Sepsis Control and Care, Friedrich-Schiller-University, Am Klinikum 1, 07747, Jena, Germany.
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7
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Dhingra S, Gaur V, Bhattacharya J, Saha S. Photoinduced micropatterning on biodegradable aliphatic polyester surfaces for anchoring dual brushes and its application in bacteria and cell patterning. J Mater Chem B 2022; 11:83-98. [PMID: 36226487 DOI: 10.1039/d2tb01477g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
In view of intrinsic challenges encountered in surface patterning on actual biomaterials such as the ones based on biodegradable polymers, we have demonstrated an innovative strategy to create micro-patterns on the surface of tartaric acid based aliphatic polyester P (poly(hexamethylene 2,3-O-isoprpylidentartarate)) without significant loss of its molecular weight. Around 10 wt% PAG (photoacid generator, 2-(4-methoxystyryl)-4,6-bis(trichloromethyl)-1,3,5-triazine) was purposefully encapsulated in a polyester matrix comprising of P and PLA (polylactide) at a ratio of 5 : 95. With the help of a photomask, selective areas of the matrix were exposed to UV radiation at 395 nm for 25 min to trigger the acid release from PAG entrapped unmasked areas for generating hydroxyl functionality that was later converted to an ATRP (atom transfer radical polymerization) initiating moiety on the irradiated domain of P. In subsequent steps, spatio-selective surface modification by surface initiated ATRP was carried out to generate an alternate pattern of polyPEGMA (poly(ethylene glycol)methyl ether methacrylate) and polyDMAPS (poly(3-dimethyl-(methacryloyloxyethyl)ammonium propane sulfonate)) brushes on the matrix. The patterned surface modified with dual brushes was found to be antifouling in nature (rejection of >97% of proteins). Strikingly, an alternate pattern of live bacterial cells (E. coli and S. aureus) was evident and a relatively high population of bacteria was found on the polyPEGMA brush modified domain. However, a complete reverse pattern was visible in the case of L929 mouse fibroblast cells, i.e., cells were found to predominantly adhere to and proliferate on the zwitterionic brush modified surface. An attempt was made to discuss a plausible mechanism of selective cell adhesion on the zwitterionic brush domain. This novel strategy employed on the biodegradable polymer surface provides an easy and straightforward way to micro-pattern various cells, bacteria, etc. on biodegradable substrates which hold great potential to function as biochips, diagnostics, bacteria/cell microarrays, etc.
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Affiliation(s)
- Shaifali Dhingra
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, India.
| | - Vidit Gaur
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi, India
| | | | - Sampa Saha
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, India.
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8
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Domínguez‐Díaz M, Cortés‐Hernández DA, De la O‐Baquera E, Dávila Medina MD. Photocatalytic degradation of methylene blue dye using poly(3‐hydroxybutyrate)/poly(ethylene glycol)/titanite films and membranes. J Appl Polym Sci 2022. [DOI: 10.1002/app.51805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maraolina Domínguez‐Díaz
- Departamento de Ingeniería Cerámica Centro de Investigación y de Estudios Avanzados del IPN Unidad Saltillo Zona Industrial Ramos Arizpe Coahuila Mexico
| | - Dora A. Cortés‐Hernández
- Departamento de Ingeniería Cerámica Centro de Investigación y de Estudios Avanzados del IPN Unidad Saltillo Zona Industrial Ramos Arizpe Coahuila Mexico
| | - Edgar De la O‐Baquera
- Departamento de Ingeniería Cerámica Centro de Investigación y de Estudios Avanzados del IPN Unidad Saltillo Zona Industrial Ramos Arizpe Coahuila Mexico
| | - Miriam D. Dávila Medina
- Grupo de Bioprocesos y Bioquímica Microbiana, Facultad de Ciencias Químicas Universidad Autónoma de Coahuila Blvd. Venustiano Carranza S/N, Colonia República Saltillo Coahuila Mexico
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9
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Hybrid Polyethylene Glycol/Sodium Metaphosphate Composites Prepared via Coacervation. NANOMATERIALS 2022; 12:nano12030528. [PMID: 35159873 PMCID: PMC8838529 DOI: 10.3390/nano12030528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/26/2022] [Accepted: 02/01/2022] [Indexed: 02/05/2023]
Abstract
We report on the fabrication and characterization of homogeneous, monophasic sodium metaphosphate and polyethylene glycol hybrid composites achieved via coacervation in aqueous solution. After separation and drying, an amorphous plastic solid is formed, composed mostly of hydrated sodium phosphate moieties amalgamated with polyethylene glycol chains. These composites are largely X-ray amorphous and can contain up to 8 weight percent of polymer. Impedance spectroscopic measurements reveal DC conductivity values of 12 μS/m at room temperature, an enhancement of three orders of magnitude when compared to glassy sodium metaphosphate, and the presence of the polyethylene glycol is reflected in the equivalent circuit and ionic hopping analyses.
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10
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Allen AC, Efrem M, Mahalingam U, Guarino-Hotz M, Foley AR, Raskatov JA, Song C, Lindley SA, Li J, Chen B, Zhang JZ. Hollow Gold Nanosphere Templated Synthesis of PEGylated Hollow Gold Nanostars and Use for SERS Detection of Amyloid Beta in Solution. J Phys Chem B 2021; 125:12344-12352. [PMID: 34726922 DOI: 10.1021/acs.jpcb.1c06776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Hollow gold nanospheres (HGNs) have been used as the template for seed-mediated growth of multibranched hollow gold nanostars (HNS). The HGNs were synthesized via anerobic reduction of cobalt chloride to cobalt nanoparticles and then formation of a gold shell via galvanic replacement followed by the oxidation of the cobalt core. We obtained control of the inner core size of the HGNs by increasing the size of the sacrificial cobalt core and by varying the ratio of B(OH)3/BH4 using boric acid rather than 48 h aged borohydride. We synthesized the HNS by reducing Au3+ ions in the presence of Ag+ ions using ascorbic acid, creating a spiky morphology that varied with the Au3+/Ag+ ratio. A broadly tunable localized surface plasmon resonance was achieved through control of both the inner core and the spike length. Amyloid beta (Aβ) was conjugated to the HNS by using a heterobifunctional PEG linker and identified by the vibrational modes associated with the conjugated ring phenylalanine side chain. A bicinchoninic acid assay was used to determine the concentration of Aβ conjugated to HNS as 20 nM, which is below the level of Aβ that negatively affects long-term potentiation. Both the core size and spike length were shown to affect the optical properties of the resulting nanostructures. This HGN templated method introduced a new parameter for enhancing the plasmonic properties of gold nanostars, namely, the addition of a hollow core. Hollow gold nanostars are highly desirable for a wide range of applications, including high sensitivity disease detection and monitoring.
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Affiliation(s)
- A'Lester C Allen
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California 95064, United States
| | - Mekedlawit Efrem
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California 95064, United States
| | - Umadevi Mahalingam
- Department of Physics, Mother Teresa Women's University, Kodaikanal 624 101, Tamil Nadu, India
| | - Melissa Guarino-Hotz
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California 95064, United States
| | - Alejandro R Foley
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California 95064, United States
| | - Jevgenij A Raskatov
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California 95064, United States
| | - Chengyu Song
- National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Sarah A Lindley
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California 95064, United States
| | - Jing Li
- NASA Ames Research Center, Moffett Field, California 94035, United States
| | - Bin Chen
- NASA Ames Research Center, Moffett Field, California 94035, United States
| | - Jin Z Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, Santa Cruz, California 95064, United States
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11
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Ali RF, Guo I, Kang H, Radford MJ, Yapp DT, Gates BD. Tuning the Surface Chemistry of Second-Harmonic-Active Lithium Niobate Nanoprobes Using a Silanol-Alcohol Condensation Reaction. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7689-7700. [PMID: 34128677 DOI: 10.1021/acs.langmuir.1c00645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The surface functionalization of nanoparticles (NPs) is of great interest for improving the use of NPs in, for example, therapeutic and diagnostic applications. The conjugation of specific molecules with NPs through the formation of covalent linkages is often sought to provide a high degree of colloidal stability and biocompatibility, as well as to provide functional groups for further surface modification. NPs of lithium niobate (LiNbO3) have been explored for use in second-harmonic-generation (SHG)-based bioimaging, expanding the applications of SHG-based microscopy techniques. The efficient use of SHG-active LiNbO3 NPs as probes will, however, require the functionalization of their surfaces with molecular reagents such as polyethylene glycol and fluorescent molecules to enhance their colloidal and chemical stability and to enable a correlative imaging platform. Herein, we demonstrate the surface functionalization of LiNbO3 NPs through the covalent attachment of alcohol-based reagents through a silanol-alcohol condensation reaction. Alcohol-based reagents are widely available and can have a range of terminal functional groups such as carboxylic acids, amines, and aldehydes. Attaching these molecules to NPs through the silanol-alcohol condensation reaction could diversify the reagents available to modify NPs, but this reaction pathway must first be established as a viable route to modifying NPs. This study focuses on the attachment of a linear alcohol functionalized with carboxylic acid and its use as a reactive group to further tune the surface chemistry of LiNbO3 NPs. These carboxylic acid groups were reacted to covalently attach other molecules to the NPs using copper-free click chemistry. This derivatization of the NPs provided a means to covalently attach polyethylene glycols and fluorescent probes to the NPs, reducing NP aggregation and enabling multimodal tracking of SHG nanoprobes, respectively. This extension of the silanol-alcohol condensation reaction to functionalize the surfaces of LiNbO3 NPs can be extended to other types of nanoprobes for use in bioimaging, biosensing, and photodynamic therapies.
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Affiliation(s)
- Rana Faryad Ali
- Department of Chemistry and 4D LABS, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Iris Guo
- Department of Chemistry and 4D LABS, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Henry Kang
- Department of Chemistry and 4D LABS, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Melissa J Radford
- Department of Chemistry and 4D LABS, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
| | - Donald T Yapp
- British Columbia Cancer Agency, 675 West 10th Avenue, Vancouver BC V5Z 1L3, Canada
| | - Byron D Gates
- Department of Chemistry and 4D LABS, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia V5A 1S6, Canada
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12
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Sil S, Kuhar N, Roy K, Chaturvedi D, Morita S, Ozaki Y, Umapathy S. Understanding phase transition and vibrational mode coupling in ammonium nitrate using 2D correlation Raman spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 254:119581. [PMID: 33706114 DOI: 10.1016/j.saa.2021.119581] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/18/2021] [Accepted: 01/30/2021] [Indexed: 06/12/2023]
Abstract
Ammonium nitrate (AN) is an important component of the chemical industry such as an active ingredient in fertilizers, as an oxidizer in explosive compositions and propellants, and as a blasting agent in civil explosives. Numerous accidents have been reported in the past which concerns its thermal instability and poses a big threat to its processing, transportation, and storage. Despite much literature being reported to understand its thermal instability, a mechanistic view remains unclear. In the present work, we have studied the behavior of AN to temperature change using a mathematical approach called 2D correlation (2D Cos) Raman spectroscopy to provide complete insight into the detailed dynamical nature of the interactions between the species (ionic or molecular) occurring with an increase in temperature. We have analyzed various libration and translational modes of nitrate in the low-frequency region using this mathematical tool. It is observed from 2D maps that the phase transition of AN starts with changes in libration modes followed by various nitrate modes and ammonium modes which further precedes low-frequency translational modes. Further, the 2D correlation could differentiate between modes splitting and shifting based on specific 2D Cos pattern. The changes occurring in the N-O deformation modes, symmetric stretching modes as well as anti-symmetric stretching modes which have been attributed to the weakening of the hetero-ionic coupling between the NH4+ and the NO3- ions could be clearly distinguished in the 2D synchronous and asynchronous plots. Besides, moving window analysis was performed to visualize the transition temperature at which phase change of AN takes place.
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Affiliation(s)
- Sanchita Sil
- Defence Bioengineering & Electromedical Laboratory, DRDO, Bangalore 560093, India
| | - Nikki Kuhar
- Department of Inorganic & Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Khokan Roy
- Department of Inorganic & Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Deepika Chaturvedi
- Department of Inorganic & Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Shigeaki Morita
- Dept. of Engineering Science, Osaka Electro-Communication University, Osaka, Japan
| | - Yukihiro Ozaki
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan; Toyota Physical and Chemical Research Institute, 41-1, Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Siva Umapathy
- Department of Inorganic & Physical Chemistry, Indian Institute of Science, Bangalore 560012, India; Dept. of Instrumentation and Applied Physics, Indian Institute of Science, Bangalore 560012, India.
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13
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Sohail M, An H, Choi W, Singh J, Yim K, Kim BH, Park YC, Lee JS, Kim H. Sorption-enhanced thin film composites with metal-organic polyhedral nanocages for CO2 separation. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2020.118826] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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14
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15
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Kang L, Smith S, Wang C. Metal-Organic Framework Preserves the Biorecognition of Antibodies on Nanoscale Surfaces Validated by Single-Molecule Force Spectroscopy. ACS APPLIED MATERIALS & INTERFACES 2020; 12:3011-3020. [PMID: 31846291 DOI: 10.1021/acsami.9b19551] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Antibody biorecognition forms the basis for numerous biomedical applications such as diagnostic assays, targeted drug delivery, and targeted cancer imaging. However, antibodies, especially after being conjugated to surfaces or nanostructures, suffer from stability issues when stored under nonrefrigeration conditions. Therefore, enhancing the stability of antibodies on surfaces and nanostructures under ambient and elevated temperatures is of paramount importance for many nanobiotechnology applications. In this study, we introduce a simple and facile approach based on a metal-organic framework (MOF) coating to preserve the biorecognition capability of antibodies immobilized on nanoscale surfaces after exposure to elevated temperatures for a prolonged period. By using atomic force microscopy (AFM)-based force spectroscopy, we demonstrate that the MOF coating is able to preserve the binding force and binding frequency of the anti-CD-146 antibody attached to an AFM tip to CD-146 antigen on the surface of melanoma cells at the single-molecule level. We also demonstrate that the MOF coating outperforms another commonly used sucrose coatings in terms of maintaining the binding force and binding frequency of the antibody to antigen. Herein, the AFM tip functionalized with antibodies provides a nanoscale testbed (analogous to an antibody-conjugated nanostructure) to assess antibody biorecognition at the single-molecule level and preservation efficacy under antibody denaturing conditions. This MOF coating approach should be applicable to the preservation of a variety of antibody-conjugated nanostructures aiming for targeted drug delivery, targeted cancer imaging, and nanobiosensors. The improved stability and elimination of refrigeration requirements will facilitate wide applications of antibody-enabled nanobiotechnology in resource-limited environments and populations.
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Affiliation(s)
- Lin Kang
- Nanoscience and Nanoengineering , South Dakota School of Mines and Technology , 501 East Saint Joseph Street , Rapid City , South Dakota 57701 , United States
- BioSystems Networks/Translational Research (BioSNTR) , 501 East Saint Joseph Street , Rapid City , South Dakota 57701 , United States
| | - Steve Smith
- Nanoscience and Nanoengineering , South Dakota School of Mines and Technology , 501 East Saint Joseph Street , Rapid City , South Dakota 57701 , United States
- BioSystems Networks/Translational Research (BioSNTR) , 501 East Saint Joseph Street , Rapid City , South Dakota 57701 , United States
| | - Congzhou Wang
- Nanoscience and Nanoengineering , South Dakota School of Mines and Technology , 501 East Saint Joseph Street , Rapid City , South Dakota 57701 , United States
- BioSystems Networks/Translational Research (BioSNTR) , 501 East Saint Joseph Street , Rapid City , South Dakota 57701 , United States
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16
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Samuel AZ. Direct estimation of polymer crystallinity with Raman spectroscopy using ratio of scattering cross-sections estimated from variable temperature measurements. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 224:117431. [PMID: 31376726 DOI: 10.1016/j.saa.2019.117431] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/23/2019] [Accepted: 07/26/2019] [Indexed: 06/10/2023]
Abstract
Physical properties of polymers (e.g. crystallinity, lamella thickness, thermodynamic properties etc.) can in principle be reliably estimated from their Raman spectral intensities by converting intensities to corresponding concentrations of conformers. However, such conversions are not straightforward due to the unknown scattering cross-sections. The study demonstrates that for several practical applications of Raman spectroscopy, a ratio of cross-sections can be used instead of the absolute values. A straight forwards method for accurately estimating ratio of scattering cross-section from variable temperature measurements is described here. In order to demonstrate its applicability, percent crystallinity (PC) of polyethylene has been directly estimated from Raman intensities without external calibration with other techniques. This general method can be applied to any polymer when there is a continuous change in composition of conformers over a range of temperatures.
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Affiliation(s)
- Ashok Zachariah Samuel
- Research Organization for Nano and Life Innovations, Waseda University, Shinjuku-ku, Tokyo, Japan.
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17
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Kutlu Kaya C, Gümrükçü S, Saraç AS, Kök FN. A multifunctional long-term release system for treatment of hypothyroidism. J Biomed Mater Res A 2019; 108:760-759. [PMID: 31788940 DOI: 10.1002/jbm.a.36855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/25/2019] [Accepted: 11/28/2019] [Indexed: 11/07/2022]
Abstract
Hypothyroidism is an autoimmune disease associated with underactive thyroid gland. In this study, a dual effect polymeric system was designed to release Cepharanthine (CEP) to block T cell activation and Selenium (Se) to decrease the anti-thyroid peroxidase (TPOAb) concentration in order to treat hypothyroidism. For this purpose, poly(ethylene-vinyl acetate) (PEVA) and polyethylene glycol (PEG) nanoparticles (NPs) including CEP were synthesized by emulsion solvent evaporation method and they were loaded to polyurethane (PU)/PEG-PUSe-PEG block copolymer blends which were fabricated by particulate leaching technique as porous sponges. Fourier-Transform Infrared (FTIR), Raman, and Nuclear Magnetic Resonance (NMR) analysis showed successful synthesis of PEG-PUSe-PEG block copolymer. A long-term zero-order release profile was obtained for CEP. Se release rate from matrices showed an oxidative stress-mediated release which can be used to adjust Se amount. According to MTS results conducted by NIH 3T3 fibroblasts, both NPs and matrices have no adverse effect on cell viability. Fluorescence microscopy and SEM images confirm the MTS results. The dual release system has potential to be effectively used in long-term treatment of hypothyroidism by addressing both auto-immune response and hormone regulation.
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Affiliation(s)
- Ceren Kutlu Kaya
- NanoScience & Nanoengineering Program, Istanbul Technical University, Istanbul, Turkey
| | - Selin Gümrükçü
- Chemistry Department, Istanbul Technical University, Istanbul, Turkey
| | - Abdulkadir Sezai Saraç
- NanoScience & Nanoengineering Program, Istanbul Technical University, Istanbul, Turkey.,Polymer Science and Technology, Istanbul Technical University, Istanbul, Turkey
| | - Fatma Neşe Kök
- NanoScience & Nanoengineering Program, Istanbul Technical University, Istanbul, Turkey.,Molecular Biology & Genetics Department, Istanbul Technical University, Istanbul, Turkey
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18
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Falco M, Simari C, Ferrara C, Nair JR, Meligrana G, Bella F, Nicotera I, Mustarelli P, Winter M, Gerbaldi C. Understanding the Effect of UV-Induced Cross-Linking on the Physicochemical Properties of Highly Performing PEO/LiTFSI-Based Polymer Electrolytes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:8210-8219. [PMID: 31125520 DOI: 10.1021/acs.langmuir.9b00041] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report a thorough, multitechnique investigation of the structure and transport properties of a UV-cross-linked polymer electrolyte based on poly(ethylene oxide), tetra(ethylene glycol)dimethyl ether (G4), and lithium bis(trifluoromethane)sulfonimide. The properties of the cross-linked polymer electrolyte are compared to those of a non-cross-linked sample of same composition. The effect of UV-induced cross-linking on the physico/chemical characteristics is evaluated by X-ray diffraction, differential scanning calorimetry, shear rheology, 1H and 7Li magic angle spinning nuclear magnetic resonance (NMR) spectroscopy, 19F and 7Li pulsed field gradient stimulated echo NMR analyses, electrochemical impedance spectroscopy, and Fourier transform Raman spectroscopy. Comprehensive analysis confirms that UV-induced cross-linking is an effective technique to suppress the crystallinity of the polymer matrix and reduce ion aggregation, yielding improved Li+ transport number (>0.5) and ionic conductivity (>0.1 mS cm?1) at ambient temperature, by tailoring the structural/morphological characteristics of the polymer matrix. Finally, the polymer electrolyte allows reversible operation with stable profile for hundreds of cycles upon galvanostatic test at ambient temperature of LiFePO4-based lithium-metal cells, which deliver full capacity at 0.05 or 0.1C current rate and keep high rate capabilities up to 1C. This enforces the role of UV-induced cross-linking in achieving excellent electrochemical characteristics, exploiting a practical, easy up-scalable process.
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Affiliation(s)
- Marisa Falco
- GAME Lab, Department of Applied Science and Technology (DISAT) , Politecnico di Torino , Corso Duca degli Abruzzi 24 , 10129 Torino , Italy
| | - Cataldo Simari
- Dipartimento di Chimica e Tecnologie Chimiche , Universita? della Calabria , Via P. Bucci , 87036 Rende (CS) , Italy
| | - Chiara Ferrara
- Department of Chemistry/INSTM , University of Pavia , Via Taramelli 16 , 27100 Pavia , Italy
| | - Jijeesh Ravi Nair
- Helmholtz-Institute Mu?nster (HI MS), IEK-12, Forschungszentrum Ju?lich GmbH, and MEET Battery Research Center , University of Mu?nster , Corrensstra?e 46 , 48149 Mu?nster , Germany
| | - Giuseppina Meligrana
- GAME Lab, Department of Applied Science and Technology (DISAT) , Politecnico di Torino , Corso Duca degli Abruzzi 24 , 10129 Torino , Italy
| | - Federico Bella
- GAME Lab, Department of Applied Science and Technology (DISAT) , Politecnico di Torino , Corso Duca degli Abruzzi 24 , 10129 Torino , Italy
| | - Isabella Nicotera
- Dipartimento di Chimica e Tecnologie Chimiche , Universita? della Calabria , Via P. Bucci , 87036 Rende (CS) , Italy
| | - Piercarlo Mustarelli
- Department of Materials Science , University of Milano ? Bicocca , Via Cozzi 55 , 20125 Milano , Italy
| | - Martin Winter
- Helmholtz-Institute Mu?nster (HI MS), IEK-12, Forschungszentrum Ju?lich GmbH, and MEET Battery Research Center , University of Mu?nster , Corrensstra?e 46 , 48149 Mu?nster , Germany
| | - Claudio Gerbaldi
- GAME Lab, Department of Applied Science and Technology (DISAT) , Politecnico di Torino , Corso Duca degli Abruzzi 24 , 10129 Torino , Italy
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19
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Lee Y, Jang J, Yoon J, Choi JW, Choi I, Kang T. Phase transfer-driven rapid and complete ligand exchange for molecular assembly of phospholipid bilayers on aqueous gold nanocrystals. Chem Commun (Camb) 2019; 55:3195-3198. [PMID: 30698575 DOI: 10.1039/c8cc10037c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A phase transfer-mediated ligand exchange method is developed for highly selective and rapid synthesis of colloidal phospholipid bilayer-coated gold nanocrystals. The complete replacement of strongly bound surface ligands such as cetyltrimethylammonium bromide (CTAB) and citrate by phospholipid bilayer can be quickly achieved by water-chloroform phase transfer.
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Affiliation(s)
- Youngjae Lee
- Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea.
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20
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An In Vitro Corrosion Study of Open Cell Iron Structures with PEG Coating for Bone Replacement Applications. METALS 2018. [DOI: 10.3390/met8070499] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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21
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Lau HK, Paul A, Sidhu I, Li L, Sabanayagam CR, Parekh SH, Kiick KL. Microstructured Elastomer-PEG Hydrogels via Kinetic Capture of Aqueous Liquid-Liquid Phase Separation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1701010. [PMID: 29938180 PMCID: PMC6010786 DOI: 10.1002/advs.201701010] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 01/22/2018] [Indexed: 05/31/2023]
Abstract
Heterogeneous hydrogels with desired matrix complexity are studied for a variety of biomimetic materials. Despite the range of such microstructured materials described, few methods permit independent control over microstructure and microscale mechanics by precisely controlled, single-step processing methods. Here, a phototriggered crosslinking methodology that traps microstructures in liquid-liquid phase-separated solutions of a highly elastomeric resilin-like polypeptide (RLP) and poly(ethylene glycol) (PEG) is reported. RLP-rich domains of various diameters can be trapped in a PEG continuous phase, with the kinetics of domain maturation dependent on the degree of acrylation. The chemical composition of both hydrogel phases over time is assessed via in situ hyperspectral coherent Raman microscopy, with equilibrium concentrations consistent with the compositions derived from NMR-measured coexistence curves. Atomic force microscopy reveals that the local mechanical properties of the two phases evolve over time, even as the bulk modulus of the material remains constant, showing that the strategy permits control of mechanical properties on micrometer length scales, of relevance in generating mechanically robust materials for a range of applications. As one example, the successful encapsulation, localization, and survival of primary cells are demonstrated and suggest the potential application of phase-separated RLP-PEG hydrogels in regenerative medicine applications.
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Affiliation(s)
- Hang Kuen Lau
- Department of Materials Science and EngineeringUniversity of Delaware201 DuPont HallNewarkDE19716USA
| | - Alexandra Paul
- Department of Biology and Biological EngineeringChalmers University of TechnologyGothenburgSE‐412 96Sweden
- Department of Molecular SpectroscopyMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Ishnoor Sidhu
- Department of Biological SciencesUniversity of DelawareNewarkDE19716USA
| | - Linqing Li
- Department of Materials Science and EngineeringUniversity of Delaware201 DuPont HallNewarkDE19716USA
| | | | - Sapun H. Parekh
- Department of Molecular SpectroscopyMax Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Kristi L. Kiick
- Department of Materials Science and EngineeringUniversity of Delaware201 DuPont HallNewarkDE19716USA
- Delaware Biotechnology Institute15 Innovation WayNewarkDE19711USA
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22
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Samuel AZ, Lai BH, Lan ST, Ando M, Wang CL, Hamaguchi HO. Estimating Percent Crystallinity of Polyethylene as a Function of Temperature by Raman Spectroscopy Multivariate Curve Resolution by Alternating Least Squares. Anal Chem 2017; 89:3043-3050. [DOI: 10.1021/acs.analchem.6b04750] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | | | | | - Masahiro Ando
- Waseda University, Consolidated Research Institute
for Advanced Science and Medical Care, 513 Wasedatsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
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23
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24
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Barroso-Bujans F, Cerveny S, Palomino P, Enciso E, Rudić S, Fernandez-Alonso F, Alegria A, Colmenero J. Dynamics and Structure of Poly(ethylene oxide) Intercalated in the Nanopores of Resorcinol–Formaldehyde Resin Nanoparticles. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01285] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fabienne Barroso-Bujans
- Centro de Física
de Materiales (CSIC-UPV/EHU), Paseo
Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Donostia International
Physics Center, Paseo Manuel Lardizábal
4, 20018 San Sebastián, Spain
- IKERBASQUE - Basque
Foundation for Science, María
Díaz de Haro 3, E-48013 Bilbao, Spain
| | - Silvina Cerveny
- Centro de Física
de Materiales (CSIC-UPV/EHU), Paseo
Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Donostia International
Physics Center, Paseo Manuel Lardizábal
4, 20018 San Sebastián, Spain
| | - Pablo Palomino
- Departamento
de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Eduardo Enciso
- Departamento
de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Svemir Rudić
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - Felix Fernandez-Alonso
- ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom
- Department
of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - Angel Alegria
- Centro de Física
de Materiales (CSIC-UPV/EHU), Paseo
Manuel Lardizábal 5, 20018 San Sebastián, Spain
| | - Juan Colmenero
- Centro de Física
de Materiales (CSIC-UPV/EHU), Paseo
Manuel Lardizábal 5, 20018 San Sebastián, Spain
- Donostia International
Physics Center, Paseo Manuel Lardizábal
4, 20018 San Sebastián, Spain
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25
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El Hadri M, Achahbar A, El Khamkhami J, Khelifa B, Tran Le Tuyet C, Faivre V, Abbas O, El Marssi M, Bougrioua F, Bresson S. Vibrational behavior of Gelucire 50/13 by Raman and IR spectroscopies: A focus on the 1800–1000cm−1 spectral range according to temperature and degree of hydration. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.10.062] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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