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Besford QA. The sweetest polymer nanoparticles: opportunities ahead for glycogen in nanomedicine. Soft Matter 2024; 20:3577-3584. [PMID: 38629336 DOI: 10.1039/d4sm00261j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Most cells take simple sugar (α-D-glucose) and assemble it into highly dense polysaccharide nanoparticles called glycogen. This is achieved through the action of multiple coupled-enzymatic reactions, yielding the cellular store of polymerised glucose to be degraded in times of metabolic need. These nanoparticles can be readily isolated from various animal tissues and plants, and are commercially available on a large scale. Importantly, glycogen is highly water soluble, non-toxic, low-fouling, and biodegradable, making it an attractive nanoparticle for use in nanomedicine, for both diagnosing and treating disease. This concept has been pursued actively recently, with exciting results on a variety of fronts, especially for targeting specific tissues and delivering nucleic acid and peptide cargo. In this perspective, the role of glycogen in nanomedicine going forward is discussed, with opportunities highlighted of where these sugary nanoparticles fit into the problem of treating disease.
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Affiliation(s)
- Quinn A Besford
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, Dresden 01069, Germany.
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2
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Chae S, Choi WJ, Nebel LJ, Cho CH, Besford QA, Knapp A, Makushko P, Zabila Y, Pylypovskyi O, Jeong MW, Avdoshenko S, Sander O, Makarov D, Chung YJ, Fery A, Oh JY, Lee TI. Kinetically controlled metal-elastomer nanophases for environmentally resilient stretchable electronics. Nat Commun 2024; 15:3071. [PMID: 38594231 PMCID: PMC11004024 DOI: 10.1038/s41467-024-47223-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/23/2024] [Indexed: 04/11/2024] Open
Abstract
Nanophase mixtures, leveraging the complementary strengths of each component, are vital for composites to overcome limitations posed by single elemental materials. Among these, metal-elastomer nanophases are particularly important, holding various practical applications for stretchable electronics. However, the methodology and understanding of nanophase mixing metals and elastomers are limited due to difficulties in blending caused by thermodynamic incompatibility. Here, we present a controlled method using kinetics to mix metal atoms with elastomeric chains on the nanoscale. We find that the chain migration flux and metal deposition rate are key factors, allowing the formation of reticular nanophases when kinetically in-phase. Moreover, we observe spontaneous structural evolution, resulting in gyrified structures akin to the human brain. The hybridized gyrified reticular nanophases exhibit strain-invariant metallic electrical conductivity up to 156% areal strain, unparalleled durability in organic solvents and aqueous environments with pH 2-13, and high mechanical robustness, a prerequisite for environmentally resilient devices.
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Affiliation(s)
- Soosang Chae
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics, Hohe Str. 6, 01069, Dresden, Germany
- School of Energy Materials and Chemical Engineering, Korea University of Technology and Education, Cheonan, 31253, South Korea
| | - Won Jin Choi
- Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, CA, 94550, USA.
| | - Lisa Julia Nebel
- Institut für Numerische Mathematik, Technische Universität Dresden, Zellescher Weg 12-14, 01069, Dresden, Germany
| | - Chang Hee Cho
- Department of Materials Science and Engineering, Gachon University, Seong-nam, Gyeonggi 13120, Republic of Korea
| | - Quinn A Besford
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics, Hohe Str. 6, 01069, Dresden, Germany
| | - André Knapp
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics, Hohe Str. 6, 01069, Dresden, Germany
| | - Pavlo Makushko
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research, 01328, Dresden, Germany
| | - Yevhen Zabila
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research, 01328, Dresden, Germany
| | - Oleksandr Pylypovskyi
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research, 01328, Dresden, Germany
- Kyiv Academic University, 03142, Kyiv, Ukraine
| | - Min Woo Jeong
- Department of Chemical Engineering (Integrated Engineering Program), Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Stanislav Avdoshenko
- Leibniz-Institut für Festkörper- und Werkstoffforschung e.V., Institute for Solid State Research, Nothnitzer Str. 49A, 01069, Dresden, Germany
| | - Oliver Sander
- Institut für Numerische Mathematik, Technische Universität Dresden, Zellescher Weg 12-14, 01069, Dresden, Germany
| | - Denys Makarov
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Institute of Ion Beam Physics and Materials Research, 01328, Dresden, Germany
| | - Yoon Jang Chung
- Department of Chemical and Biological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung Dresden e.V., Institute of Physical Chemistry and Polymer Physics, Hohe Str. 6, 01069, Dresden, Germany
- Technische Universität Dresden, Mommsenstr. 4, 01062, Dresden, Germany
| | - Jin Young Oh
- Department of Chemical Engineering (Integrated Engineering Program), Kyung Hee University, Yongin, 17104, Republic of Korea.
| | - Tae Il Lee
- Department of Materials Science and Engineering, Gachon University, Seong-nam, Gyeonggi 13120, Republic of Korea.
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Liao X, Sychev D, Rymsha K, Al‐Hussein M, Farinha JP, Fery A, Besford QA. Integrated FRET Polymers Spatially Reveal Micro- to Nanostructure and Irregularities in Electrospun Microfibers. Adv Sci (Weinh) 2023; 10:e2304488. [PMID: 37897318 PMCID: PMC10754101 DOI: 10.1002/advs.202304488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/08/2023] [Indexed: 10/30/2023]
Abstract
A spatial view of macroscopic polymer material properties, in terms of nanostructure and irregularities, can help to better understand engineering processes such as when materials may fail. However, bridging the gap between the molecular-scale arrangement of polymer chains and the spatially resolved macroscopic properties of a material poses numerous difficulties. Herein, an integrated messenger material that can report on the material micro- to nanostructure and its processes is introduced. It is based on polymer chains labeled with fluorescent dyes that feature Förster resonance energy transfer (FRET) dependent on chain conformation and concentration within a host polymer material. These FRET materials are integrated within electrospun polystyrene microfibers, and the FRET is analyzed by confocal laser scanning microscopy (CLSM). Importantly, the use of CLSM allows a spatial view of material nanostructure and irregularities within the microfibers, where changes in FRET are significant when differences in fiber geometries and regularities exist. Furthermore, changes in FRET observed in damaged regions of the fibers indicate changes in polymer conformation and/or concentration as the material changes during compression. The system promises high utility for applications where nano-to-macro communication is needed for a better understanding of material processes.
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Affiliation(s)
- Xiaojian Liao
- Macromolecular ChemistryBavarian Polymer InstituteUniversity of Bayreuth95440BayreuthGermany
| | - Dmitrii Sychev
- Technische Universität DresdenChair for Physical Chemistry of Polymeric MaterialsFaculty of Chemistry and Food Science01069DresdenGermany
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Str. 601069DresdenGermany
| | - Khrystyna Rymsha
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Str. 601069DresdenGermany
| | - Mahmoud Al‐Hussein
- Physics Department and Hamdi Mango Center for Scientific ResearchThe University of JordanAmman11942Jordan
| | - José Paulo Farinha
- Centro de Quimica EstruturalDepartment of Chemical EngineeringInstituto Superior TécnicoUniversidade de LisboaLisboa1049‐001Portugal
| | - Andreas Fery
- Technische Universität DresdenChair for Physical Chemistry of Polymeric MaterialsFaculty of Chemistry and Food Science01069DresdenGermany
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Str. 601069DresdenGermany
| | - Quinn A. Besford
- Leibniz‐Institut für Polymerforschung Dresden e.V.Hohe Str. 601069DresdenGermany
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Jancke S, Liu C, Wang R, Sarkar S, Besford QA, König TAF, Popp J, Cialla-May D, Rossner C. Turning on hotspots: supracolloidal SERS probes made brilliant by an external activation mechanism. Nanoscale 2023; 15:18687-18695. [PMID: 37941432 DOI: 10.1039/d3nr05121h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
We achieved external activation of local hot-spot sites in supracolloidal assembly structures. The concept was demonstrated by boosting surface-enhanced Raman scattering (SERS) efficiency by one order of magnitude through a heating-induced process. Our approach involves assembling gold nanoparticles with distinct dimensions, i.e. 16 and 80 nm, into well-defined planet-satellite-type arrangement structures using thermoresponsive (poly(N-isopropylacrylamide)) star polymer linkers. Insights into the assembly process were obtained by calculations within the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory framework. We observe one order of magnitude increase in SERS enhancement by a heating-induced volume-phase transition. This magnification aligns with simulations run using the finite-difference time-domain (FDTD) method. The implications of this adaptive supracolloidal concept are twofold: Firstly, our approach bypasses limitations of existing systems that are associated with the limited accessibility of electromagnetic hot-spot sites in strongly coupled, static assemblies of plasmonic nanoparticles, by providing the capability of dynamic hot-spot re-configuration. Second, these externally activated probes offer promising opportunities for the development of messenger materials and associated sensing strategies.
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Affiliation(s)
- Sophie Jancke
- Leibniz-Institut für Polymerforschung Dresden e.V., Institut für Physikalische Chemie und Physik der Polymere, D-01069 Dresden, Germany.
| | - Chen Liu
- 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 Jena, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743 Jena, Germany
| | - Ruosong Wang
- Leibniz-Institut für Polymerforschung Dresden e.V., Institut für Physikalische Chemie und Physik der Polymere, D-01069 Dresden, Germany.
| | - Swagato Sarkar
- Leibniz-Institut für Polymerforschung Dresden e.V., Institut für Physikalische Chemie und Physik der Polymere, D-01069 Dresden, Germany.
| | - Quinn A Besford
- Leibniz-Institut für Polymerforschung Dresden e.V., Institut für Physikalische Chemie und Physik der Polymere, D-01069 Dresden, Germany.
| | - Tobias A F König
- Leibniz-Institut für Polymerforschung Dresden e.V., Institut für Physikalische Chemie und Physik der Polymere, D-01069 Dresden, Germany.
- Dresden Center for Intelligent Materials (DCIM), Technische Universität Dresden, D-01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
- Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, Helmholtzstraße 18, 01069 Dresden, 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 Jena, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743 Jena, Germany
| | - Dana Cialla-May
- 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 Jena, Member of the Leibniz Centre for Photonics in Infection Research (LPI), Helmholtzweg 4, 07743 Jena, Germany
| | - Christian Rossner
- Leibniz-Institut für Polymerforschung Dresden e.V., Institut für Physikalische Chemie und Physik der Polymere, D-01069 Dresden, Germany.
- Dresden Center for Intelligent Materials (DCIM), Technische Universität Dresden, D-01069 Dresden, Germany
- Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
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Xu R, Bhangu SK, Sourris KC, Vanni D, Sani MA, Karas JA, Alt K, Niego B, Ale A, Besford QA, Dyett B, Patrick J, Carmichael I, Shaw JE, Caruso F, Cooper ME, Hagemeyer CE, Cavalieri F. An Engineered Nanosugar Enables Rapid and Sustained Glucose-Responsive Insulin Delivery in Diabetic Mice. Adv Mater 2023; 35:e2210392. [PMID: 36908046 DOI: 10.1002/adma.202210392] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/11/2023] [Indexed: 05/26/2023]
Abstract
Glucose-responsive insulin-delivery platforms that are sensitive to dynamic glucose concentration fluctuations and provide both rapid and prolonged insulin release have great potential to control hyperglycemia and avoid hypoglycemia diabetes. Here, biodegradable and charge-switchable phytoglycogen nanoparticles capable of glucose-stimulated insulin release are engineered. The nanoparticles are "nanosugars" bearing glucose-sensitive phenylboronic acid groups and amine moieties that allow effective complexation with insulin (≈95% loading capacity) to form nanocomplexes. A single subcutaneous injection of nanocomplexes shows a rapid and efficient response to a glucose challenge in two distinct diabetic mouse models, resulting in optimal blood glucose levels (below 200 mg dL-1 ) for up to 13 h. The morphology of the nanocomplexes is found to be key to controlling rapid and extended glucose-regulated insulin delivery in vivo. These studies reveal that the injected nanocomplexes enabled efficient insulin release in the mouse, with optimal bioavailability, pharmacokinetics, and safety profiles. These results highlight a promising strategy for the development of a glucose-responsive insulin delivery system based on a natural and biodegradable nanosugar.
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Affiliation(s)
- Rong Xu
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Sukhvir Kaur Bhangu
- School of Science, RMIT University, Melbourne, Victoria, 3000, Australia
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3000, Australia
| | - Karly C Sourris
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Domitilla Vanni
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3000, Australia
- Dipartimento di Scienze e Tecnologie Chimiche Universita' di Roma "Tor Vergata", Via della Ricerca Scientifica 1, Rome, 00133, Italy
| | - Marc-Antoine Sani
- School of Chemistry, The Bio21 Institute, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - John A Karas
- School of Chemistry, The Bio21 Institute, The University of Melbourne, Melbourne, Victoria, 3010, Australia
| | - Karen Alt
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Be'eri Niego
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Anukreity Ale
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Quinn A Besford
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3000, Australia
| | - Brendan Dyett
- School of Science, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Joshua Patrick
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Irena Carmichael
- Monash Micro Imaging, Monash University, Melbourne, Victoria, 3004, Australia
| | - Jonathan E Shaw
- Baker Heart and Diabetes Institute, Melbourne, Victoria, 3004, Australia
| | - Frank Caruso
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3000, Australia
| | - Mark E Cooper
- Department of Diabetes, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Christoph E Hagemeyer
- Australian Centre for Blood Diseases, Central Clinical School, Monash University, Melbourne, Victoria, 3004, Australia
| | - Francesca Cavalieri
- School of Science, RMIT University, Melbourne, Victoria, 3000, Australia
- Dipartimento di Scienze e Tecnologie Chimiche Universita' di Roma "Tor Vergata", Via della Ricerca Scientifica 1, Rome, 00133, Italy
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Schubotz S, Besford QA, Nazari S, Uhlmann P, Bittrich E, Sommer JU, Auernhammer GK. Influence of the Atmosphere on the Wettability of Polymer Brushes. Langmuir 2023; 39:4872-4880. [PMID: 36995334 DOI: 10.1021/acs.langmuir.2c03009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Polymer brushes, i.e., end-tethered polymer chains on substrates, are sensitive to adaptation, e.g., swelling, adsorption, and reorientation of the surface molecules. This adaptation can originate from a contacting liquid or atmosphere for partially wetted substrates. The macroscopic contact angle of the aqueous drop can depend on both adaptation mechanisms. We analyze how the atmosphere around an aqueous droplet determines the resulting contact angle of the wetting droplet on polymer brush surfaces. Poly(N-isopropylacrylamide) (PNiPAAm)-based brushes are used due to their exceptional sensitivity to solvation and liquid mixture composition. We develop a method that reliably measures wetting properties when the drop and the surrounding atmosphere are not in equilibrium, e.g., when evaporation and condensation tend to contaminate the liquid of the drop and the atmosphere. For this purpose, we use a coaxial needle in the droplet, which continuously exchanges the wetting liquid, and in addition, we constantly exchange the almost saturated atmosphere. Depending on the wetting history, PNiPAAm can be prepared in two states, state A with a large water contact angle (∼65°) and state B with a small water contact angle (∼25°). With the coaxial needle, we can demonstrate that the water contact angle of a sample in state B significantly increases by ∼30° when a water-free atmosphere is almost saturated with ethanol, compared to an ethanol-free atmosphere at 50% relative humidity. For a sample in state A, the relative humidity has little influence on the water contact angle.
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Affiliation(s)
- Simon Schubotz
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
- Technische Universität Dresden, Helmholtztraße 10, Dresden 01062, Germany
| | - Quinn A Besford
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
| | - Saghar Nazari
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
- Technische Universität Dresden, Helmholtztraße 10, Dresden 01062, Germany
| | - Petra Uhlmann
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
| | - Eva Bittrich
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
| | - Jens-Uwe Sommer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
- Institute for Theoretical Physics, Technische Universität Dresden, Dresden 01069, Germany
| | - Günter K Auernhammer
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, Dresden 01069, Germany
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Sychev D, Schubotz S, Besford QA, Fery A, Auernhammer GK. Critical Analysis of Adhesion Work Measurements from AFM-based Techniques for Soft Contact. J Colloid Interface Sci 2023; 642:216-226. [PMID: 37004256 DOI: 10.1016/j.jcis.2023.03.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 03/28/2023]
Abstract
HYPOTHESIS The work of adhesion is a thermodynamic quantity that is frequently measured by atomic force microscopy (AFM). Determination of the work of adhesion requires quasi-equilibrium measurements, where we address the question of to what extent atomic force microscopy qualifies for quasi-equilibrium measurements. EXPERIMENT To measure the work of adhesion, we combined soft colloidal probe AFM (SCP AFM) with reflection interference contrast microscopy (RICM). This allowed us to extract the work of adhesion either from the pull-off force or from the contact radius. With these methods, we investigated the adhesion behavior of poly(N-isopropylacrylamide) (PNIPAM) polymer brushes in the swollen and solvent-induced collapsed state by systematically analyzing contact radii and adhesive forces. FINDINGS In the swollen state, the adhesion to the PNIPAM brush was fivefold larger and exhibited significant time dependencies when measured with SCP AFM. A strong rate dependence of the pull-off force method was indicative of a non-equilibrium process. In order to reliably determine the equilibrium work of adhesion, the contact radius method was found to be the better because it is not rate dependent. Our work highlights the important benefits of using optical measurements to determine the contact radius when deriving the works of adhesion between colloidal probes and polymer brush surfaces.
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Besford QA, Cavalieri F. Special issue on "Ultrasound-assisted engineering of materials for biomedical uses". Ultrason Sonochem 2022; 90:106216. [PMID: 36371392 PMCID: PMC9678490 DOI: 10.1016/j.ultsonch.2022.106216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Quinn A Besford
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Francesca Cavalieri
- RMIT University, School of Science, RMIT University, Melbourne, VIC, 3000, Australia
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Besford QA, Van den Heuvel W, Christofferson AJ. Dipolar Dispersion Forces in Water-Methanol Mixtures: Enhancement of Water Interactions upon Dilution Drives Self-Association. J Phys Chem B 2022; 126:6231-6239. [PMID: 35976055 DOI: 10.1021/acs.jpcb.2c04638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Mixtures of short-chain alcohols and water produce anomalous thermodynamic and structural quantities, including molecular segregation into water-rich and alcohol-rich components. Herein, we used molecular dynamics simulations with polarizable models to investigate interactions that could drive the self-association of water molecules in mixtures with methanol (MeOH). As water was diluted with MeOH, significant changes in the distribution of molecules and solvation properties occurred, where water exhibited a clear preference for self-association. When common structural quantities were analyzed, it was found that there was a clear reduction in water-water hydrogen bonding and tetrahedral order (both in terms of typical bulk behavior), contrary to the observed water self-association. However, when dipolar dispersion forces between all molecules as a function of system composition were analyzed, it was found that water-water dipolar interactions became significantly stronger with dilution (6-fold stronger interaction in 75% MeOH compared to 0% MeOH). This was only observed for water, where MeOH-MeOH interactions became weaker as the systems were more dilute in MeOH. These forces result from specific dipole orientations, likely occurring to adopt lower energy configurations (i.e., head-to-tail or antiparallel). For water, this may result from lost other interactions (e.g., hydrogen bonding), leading to more rotational freedom between the dipole moments. These intriguing changes in dipolar interactions, which directly result from structural changes, can therefore explain, in part, the driving force for water self-association in MeOH-water mixtures.
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Affiliation(s)
- Quinn A Besford
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Willem Van den Heuvel
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, DK-5230 Odense M, Denmark
| | - Andrew J Christofferson
- School of Science, STEM College, RMIT University, Melbourne, Victoria 3001, Australia.,ARC Centre of Excellence in Exciton Science, School of Science, RMIT University, Melbourne, Victoria 3001, Australia
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Besford QA, Uhlmann P, Fery A. Spatially Resolving Polymer Brush Conformation: Opportunities Ahead. MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Quinn A. Besford
- Leibniz‐Institut für Polymerforschung e.V. Hohe Str. 6 01069 Dresden Germany
| | - Petra Uhlmann
- Leibniz‐Institut für Polymerforschung e.V. Hohe Str. 6 01069 Dresden Germany
| | - Andreas Fery
- Leibniz‐Institut für Polymerforschung e.V. Hohe Str. 6 01069 Dresden Germany
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11
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Besford QA, Schubotz S, Chae S, Özdabak Sert AB, Weiss ACG, Auernhammer GK, Uhlmann P, Farinha JPS, Fery A. Molecular Transport within Polymer Brushes: A FRET View at Aqueous Interfaces. Molecules 2022; 27:molecules27093043. [PMID: 35566393 PMCID: PMC9102696 DOI: 10.3390/molecules27093043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 11/17/2022] Open
Abstract
Molecular permeability through polymer brush chains is implicated in surface lubrication, wettability, and solute capture and release. Probing molecular transport through polymer brushes can reveal information on the polymer nanostructure, with a permeability that is dependent on chain conformation and grafting density. Herein, we introduce a brush system to study the molecular transport of fluorophores from an aqueous droplet into the external “dry” polymer brush with the vapour phase above. The brushes consist of a random copolymer of N-isopropylacrylamide and a Förster resonance energy transfer (FRET) donor-labelled monomer, forming ultrathin brush architectures of about 35 nm in solvated height. Aqueous droplets containing a separate FRET acceptor are placed onto the surfaces, with FRET monitored spatially around the 3-phase contact line. FRET is used to monitor the transport from the droplet to the outside brush, and the changing internal distributions with time as the droplets prepare to recede. This reveals information on the dynamics and distances involved in the molecular transport of the FRET acceptor towards and away from the droplet contact line, which are strongly dependent on the relative humidity of the system. We anticipate our system to be extremely useful for studying lubrication dynamics and surface droplet wettability processes.
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Affiliation(s)
- Quinn A. Besford
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany; (S.S.); (S.C.); (A.C.G.W.); (G.K.A.); (P.U.)
- Correspondence: (Q.A.B.); (A.F.)
| | - Simon Schubotz
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany; (S.S.); (S.C.); (A.C.G.W.); (G.K.A.); (P.U.)
| | - Soosang Chae
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany; (S.S.); (S.C.); (A.C.G.W.); (G.K.A.); (P.U.)
| | - Ayşe B. Özdabak Sert
- Molecular Biology and Genetics Department, Istanbul Technical University, 34469 Istanbul, Turkey;
| | - Alessia C. G. Weiss
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany; (S.S.); (S.C.); (A.C.G.W.); (G.K.A.); (P.U.)
| | - Günter K. Auernhammer
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany; (S.S.); (S.C.); (A.C.G.W.); (G.K.A.); (P.U.)
| | - Petra Uhlmann
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany; (S.S.); (S.C.); (A.C.G.W.); (G.K.A.); (P.U.)
| | - José Paulo S. Farinha
- Centro de Química Estrutural, Department of Chemical Engineering, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal;
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany; (S.S.); (S.C.); (A.C.G.W.); (G.K.A.); (P.U.)
- Correspondence: (Q.A.B.); (A.F.)
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12
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Kim JY, Chae S, Jang W, Besford QA, Oh JY, Lee TI. Antioxidant Triggered Metallic 1T' Phase Transformations of Chemically Exfoliated Tungsten Disulfide (WS 2 ) Nanosheets. Small 2022; 18:e2107557. [PMID: 35146916 DOI: 10.1002/smll.202107557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Developing facile methods for inducing phase transformation between metallic and semiconducting 2D transition metal dichalcogenide (TMDC) materials is crucial toward leveraging their use in cutting-edge energy devices. Herein, 2H-to-1T' phase transformations in chemically exfoliated Tungsten Disulfide (WS2 ) nanosheet films, triggered by antioxidants toward highly conductive 2D TMDC electrode materials, are introduced. It is found that antioxidants cause residual LiOx compounds to reduce to Li metal, subsequently inducing 1T' phase transformations in layered WS2 nanosheets, resulting in significantly enhanced conductivity across the overall films. Both thermoelectric devices and supercapacitors are fabricated utilizing the highly conductive 1T' phase WS2 nanosheet films as a working electrode, allowing for outstanding performance due to the increased conductivity of the WS2 nanosheet films. The method constitutes a facile approach toward the use of chemically exfoliated 1T' TMDC nanosheets for highly efficient energy device applications.
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Affiliation(s)
- Jun Yeob Kim
- Department of Materials Science and Engineering, Gachon University, Seong-nam, Gyeonggi, 13120, Republic of Korea
| | - Soosang Chae
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069, Dresden, Germany
| | - Woosun Jang
- Center for Artificial Synesthesia Materials Discovery, Yonsei University, Seoul, 03722, Republic of Korea
| | - Quinn A Besford
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069, Dresden, Germany
| | - Jin Young Oh
- Department of Chemical Engineering (Integrated Engineering Program), Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Tae Il Lee
- Department of Materials Science and Engineering, Gachon University, Seong-nam, Gyeonggi, 13120, Republic of Korea
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13
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Besford QA, Merlitz H, Schubotz S, Yong H, Chae S, Schnepf MJ, Weiss ACG, Auernhammer GK, Sommer JU, Uhlmann P, Fery A. Mechanofluorescent Polymer Brush Surfaces that Spatially Resolve Surface Solvation. ACS Nano 2022; 16:3383-3393. [PMID: 35112848 DOI: 10.1021/acsnano.2c00277] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polymer brushes, consisting of densely end-tethered polymers to a surface, can exhibit rapid and sharp conformational transitions due to specific stimuli, which offer intriguing possibilities for surface-based sensing of the stimuli. The key toward unlocking these possibilities is the development of methods to readily transduce signals from polymer conformational changes. Herein, we report on single-fluorophore integrated ultrathin (<40 nm) polymer brush surfaces that exhibit changing fluorescence properties based on polymer conformation. The basis of our methods is the change in occupied volume as the polymer brush undergoes a collapse transition, which enhances the effective concentration and aggregation of the integrated fluorophores, leading to a self-quenching of the fluorophores' fluorescence and thereby reduced fluorescence lifetimes. By using fluorescence lifetime imaging microscopy, we reveal spatial details on polymer brush conformational transitions across complex interfaces, including at the air-water-solid interface and at the interface of immiscible liquids that solvate the surface. Furthermore, our method identifies the swelling of polymer brushes from outside of a direct droplet (i.e., the polymer phase with vapor above), which is controlled by humidity. These solvation-sensitive surfaces offer a strong potential for surface-based sensing of stimuli-induced phase transitions of polymer brushes with spatially resolved output in high resolution.
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Affiliation(s)
- Quinn A Besford
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Holger Merlitz
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Simon Schubotz
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Huaisong Yong
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Soosang Chae
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Max J Schnepf
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Alessia C G Weiss
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | | | - Jens-Uwe Sommer
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
- Institute for Theoretical Physics, Technische Universität Dresden, 01069 Dresden, Germany
| | - Petra Uhlmann
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
- Technische Universität Dresden, Helmholtzstraße 10, 01062 Dresden, Germany
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14
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Kadaoluwa Pathirannahalage SP, Meftahi N, Elbourne A, Weiss ACG, McConville CF, Padua A, Winkler DA, Costa Gomes M, Greaves TL, Le TC, Besford QA, Christofferson AJ. Systematic Comparison of the Structural and Dynamic Properties of Commonly Used Water Models for Molecular Dynamics Simulations. J Chem Inf Model 2021; 61:4521-4536. [PMID: 34406000 DOI: 10.1021/acs.jcim.1c00794] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Water is a unique solvent that is ubiquitous in biology and present in a variety of solutions, mixtures, and materials settings. It therefore forms the basis for all molecular dynamics simulations of biological phenomena, as well as for many chemical, industrial, and materials investigations. Over the years, many water models have been developed, and it remains a challenge to find a single water model that accurately reproduces all experimental properties of water simultaneously. Here, we report a comprehensive comparison of structural and dynamic properties of 30 commonly used 3-point, 4-point, 5-point, and polarizable water models simulated using consistent settings and analysis methods. For the properties of density, coordination number, surface tension, dielectric constant, self-diffusion coefficient, and solvation free energy of methane, models published within the past two decades consistently show better agreement with experimental values compared to models published earlier, albeit with some notable exceptions. However, no single model reproduced all experimental values exactly, highlighting the need to carefully choose a water model for a particular study, depending on the phenomena of interest. Finally, machine learning algorithms quantified the relationship between the water model force field parameters and the resulting bulk properties, providing insight into the parameter-property relationship and illustrating the challenges of developing a water model that can accurately reproduce all properties of water simultaneously.
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Affiliation(s)
- Sachini P Kadaoluwa Pathirannahalage
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia.,Laboratoire de Chimie, Ecole Normale Supérieure de Lyon, CNRS, Lyon 69342, France
| | - Nastaran Meftahi
- ARC Centre of Excellence in Exciton Science, School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - Aaron Elbourne
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - Alessia C G Weiss
- Leibniz-Institut für Polymerforschung e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Chris F McConville
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia.,Institute for Frontier Materials, Deakin University, Geelong, Victoria 3220, Australia
| | - Agilio Padua
- Laboratoire de Chimie, Ecole Normale Supérieure de Lyon, CNRS, Lyon 69342, France
| | - David A Winkler
- School of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Bundoora, Victoria 3086, Australia.,Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia.,School of Pharmacy, University of Nottingham, Nottingham NG7 2QL, U.K
| | | | - Tamar L Greaves
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - Tu C Le
- School of Engineering, RMIT University, Melbourne, Victoria 3001, Australia
| | - Quinn A Besford
- Leibniz-Institut für Polymerforschung e.V., Hohe Straße 6, 01069 Dresden, Germany
| | - Andrew J Christofferson
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia.,ARC Centre of Excellence in Exciton Science, School of Science, RMIT University, Melbourne, Victoria 3000, Australia
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15
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Hammons JA, Besford QA, Ilavsky J, Christofferson AJ. Manipulating meso-scale solvent structure from Pd nanoparticle deposits in deep eutectic solvents. J Chem Phys 2021; 155:074505. [PMID: 34418930 DOI: 10.1063/5.0058605] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Deep Eutectic Solvents (DESs) are complex solutions that present unique challenges compared to traditional solvents. Unlike most aqueous electrolytes and ionic liquids, DESs have delicate hydrogen bond networks that are responsible for their highly sensitive compositional dependence on the melting point. Prior work has demonstrated a unique nanoscale structure both experimentally and theoretically that brings both challenges and opportunities to their adoption in traditional electrochemical processes. In this study, we use in situ sample-rotated ultra-small angle x-ray scattering to resolve the near-interface solvent structure after electrodepositing Pd nanoparticles onto a glassy carbon electrode in choline chloride:urea and choline chloride:ethylene glycol DESs. Our results indicate that a hierarchical solvent structure can be observed on the meso-scale in the choline chloride:urea and choline chloride:ethylene glycol systems. Importantly, this extended solvent structure increases between -0.3 V and -0.5 V (vs Ag/AgCl) and remains high until -0.9 V (vs Ag/AgCl). Experimentally, the nature of this structure is more pronounced in the ethylene glycol system, as evidenced by both the x-ray scattering and the electrochemical impedance spectroscopy. Molecular dynamics simulations and dipolar orientation analysis reveal that chloride delocalization near the Pd interface and long-range interactions between the choline and each hydrogen bond donor (HBD) are very different and qualitatively consistent with the experimental data. These results show how the long-range solvent-deposit interactions can be tuned by changing the HBD in the DES and the applied potential.
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Affiliation(s)
- Joshua A Hammons
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - Quinn A Besford
- Leibniz-Institut für Polymerforschung e. V., Hohe Straße 6, 01069 Dresden, Germany
| | - Jan Ilavsky
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA
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16
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Weiss ACG, Shirbin SJ, Kelly HG, Besford QA, Kent SJ, Qiao GG. Plasma Corona Protects Human Immune Cells from Structurally Nanoengineered Antimicrobial Peptide Polymers. ACS Appl Mater Interfaces 2021; 13:33821-33829. [PMID: 34254515 DOI: 10.1021/acsami.1c07088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Safe and effective antimicrobials are needed to combat emerging antibiotic-resistant bacteria. Structurally nanoengineered antimicrobial peptide polymers (termed SNAPPs) interact with bacterial cell membranes to potently kill bacteria but may also interact at some level with human cell membranes. We studied the association of four different SNAPPs with six different white blood cells within fresh whole human blood by flow cytometry. In whole human blood, SNAPPs had detectable association with phagocytic cells and B cells, but not natural killer and T cells. However, without plasma proteins and therefore no protein corona on the SNAPPs, a greater marked association of SNAPPs with all white blood cell types was detected, resulting in cytotoxicity against most blood cell components. Thus, the formation of a protein corona around the SNAPPs reduced the association and prevented human blood cell cytotoxicity of the SNAPPs. Understanding the bio-nano interactions of these SNAPPs will be crucial to ensuring that the design of next-generation SNAPPs and other promising antimicrobial nanomaterials continues to display high efficacy toward antibiotic-resistant bacteria while maintaining a low toxicity to primary human cells.
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Affiliation(s)
- Alessia C G Weiss
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne, Parkville, Victoria 3010, Australia
- Polymer Science Group, Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Steven J Shirbin
- Polymer Science Group, Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Hannah G Kelly
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne, Parkville, Victoria 3010, Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Stephen J Kent
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne, Parkville, Victoria 3010, Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Greg G Qiao
- Polymer Science Group, Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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17
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Besford QA, Yong H, Merlitz H, Christofferson AJ, Sommer J, Uhlmann P, Fery A. FRET-Integrated Polymer Brushes for Spatially Resolved Sensing of Changes in Polymer Conformation. Angew Chem Int Ed Engl 2021; 60:16600-16606. [PMID: 33979032 PMCID: PMC8361709 DOI: 10.1002/anie.202104204] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Indexed: 12/14/2022]
Abstract
Polymer brush surfaces that alter their physical properties in response to chemical stimuli have the capacity to be used as new surface-based sensing materials. For such surfaces, detecting the polymer conformation is key to their sensing capabilities. Herein, we report on FRET-integrated ultrathin (<70 nm) polymer brush surfaces that exhibit stimuli-dependent FRET with changing brush conformation. Poly(N-isopropylacrylamide) polymers were chosen due their exceptional sensitivity to liquid mixture compositions and their ability to be assembled into well-defined polymer brushes. The brush transitions were used to optically sense changes in liquid mixture compositions with high spatial resolution (tens of micrometers), where the FRET coupling allowed for noninvasive observation of brush transitions around complex interfaces with real-time sensing of the liquid environment. Our methods have the potential to be leveraged towards greater surface-based sensing capabilities at intricate interfaces.
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Affiliation(s)
- Quinn A. Besford
- Institute of Physical Chemistry and Polymer PhysicsLeibniz-Institut für Polymerforschung e. V.Hohe Str. 601069DresdenGermany
| | - Huaisong Yong
- Institute Theory of PolymersLeibniz-Institut für Polymerforschung e. V.Hohe Str. 601069DresdenGermany
| | - Holger Merlitz
- Institute Theory of PolymersLeibniz-Institut für Polymerforschung e. V.Hohe Str. 601069DresdenGermany
| | | | - Jens‐Uwe Sommer
- Institute Theory of PolymersLeibniz-Institut für Polymerforschung e. V.Hohe Str. 601069DresdenGermany
| | - Petra Uhlmann
- Institute of Physical Chemistry and Polymer PhysicsLeibniz-Institut für Polymerforschung e. V.Hohe Str. 601069DresdenGermany
| | - Andreas Fery
- Institute of Physical Chemistry and Polymer PhysicsLeibniz-Institut für Polymerforschung e. V.Hohe Str. 601069DresdenGermany
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18
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Besford QA, Yong H, Merlitz H, Christofferson AJ, Sommer J, Uhlmann P, Fery A. FRET‐Integrated Polymer Brushes for Spatially Resolved Sensing of Changes in Polymer Conformation. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104204] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Quinn A. Besford
- Institute of Physical Chemistry and Polymer Physics Leibniz-Institut für Polymerforschung e. V. Hohe Str. 6 01069 Dresden Germany
| | - Huaisong Yong
- Institute Theory of Polymers Leibniz-Institut für Polymerforschung e. V. Hohe Str. 6 01069 Dresden Germany
| | - Holger Merlitz
- Institute Theory of Polymers Leibniz-Institut für Polymerforschung e. V. Hohe Str. 6 01069 Dresden Germany
| | | | - Jens‐Uwe Sommer
- Institute Theory of Polymers Leibniz-Institut für Polymerforschung e. V. Hohe Str. 6 01069 Dresden Germany
| | - Petra Uhlmann
- Institute of Physical Chemistry and Polymer Physics Leibniz-Institut für Polymerforschung e. V. Hohe Str. 6 01069 Dresden Germany
| | - Andreas Fery
- Institute of Physical Chemistry and Polymer Physics Leibniz-Institut für Polymerforschung e. V. Hohe Str. 6 01069 Dresden Germany
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19
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Pan S, Richardson JJ, Christofferson AJ, Besford QA, Zheng T, Wood BJ, Duan X, Jara Fornerod MJ, McConville CF, Yarovsky I, Guldin S, Jiang L, Caruso F. Fluorinated Metal-Organic Coatings with Selective Wettability. J Am Chem Soc 2021; 143:9972-9981. [PMID: 34170661 DOI: 10.1021/jacs.1c04396] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Surface chemistry is a major factor that determines the wettability of materials, and devising broadly applicable coating strategies that afford tunable and selective surface properties required for next-generation materials remains a challenge. Herein, we report fluorinated metal-organic coatings that display water-wetting and oil-repelling characteristics, a wetting phenomenon different from responsive wetting induced by external stimuli. We demonstrate this selective wettability with a library of metal-organic coatings using catechol-based coordination and silanization (both fluorinated and fluorine-free), enabling sensing through interfacial reconfigurations in both gaseous and liquid environments, and establish a correlation between the coating wettability and polarity of the liquids. This selective wetting performance is substrate-independent, spontaneous, durable, and reversible and occurs over a range of polar and nonpolar liquids (60 studied). These results provide insight into advanced liquid-solid interactions and a pathway toward tuning interfacial affinities and realizing robust, selective superwettability according to the surrounding conditions.
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Affiliation(s)
- Shuaijun Pan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Joseph J Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | | | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Tian Zheng
- Materials Characterisation and Fabrication Platform, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Barry J Wood
- Centre for Microscopy & Microanalysis, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Xiaofei Duan
- School of Chemistry, TrACEES Platform, The University of Melbourne, Parkville, Victoria 3010, Australia
| | | | | | - Irene Yarovsky
- School of Engineering, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Stefan Guldin
- Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, U.K
| | - Lei Jiang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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20
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Elbourne A, Besford QA, Meftahi N, Crawford RJ, Daeneke T, Greaves TL, McConville CF, Bryant G, Bryant SJ, Christofferson AJ. The Impact of Water on the Lateral Nanostructure of a Deep Eutectic Solvent–Solid Interface. Aust J Chem 2021. [DOI: 10.1071/ch21078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Deep eutectic solvents (DESs) are tuneable solvents with attractive properties for numerous applications. Their structure–property relationships are still under investigation, especially at the solid–liquid interface. Moreover, the influence of water on interfacial nanostructure must be understood for process optimization. Here, we employ a combination of atomic force microscopy and molecular dynamics simulations to determine the lateral and surface-normal nanostructure of the DES choline chloride:glycerol at the mica interface with different concentrations of water. For the neat DES system, the lateral nanostructure is driven by polar interactions. The surface adsorbed layer forms a distinct rhomboidal symmetry, with a repeat spacing of ~0.9 nm, comprising all DES species. The adsorbed nanostructure remains largely unchanged in 75 mol-% DES compared with pure DES, but at 50 mol-%, the structure is broken and there is a compromise between the native DES and pure water structure. By 25 mol-% DES, the water species dominates the adsorbed liquid layer, leaving very few DES species aggregates at the interface. In contrast, the near-surface surface-normal nanostructure, over a depth of ~3 nm from the surface, remains relatively unchanged down to 25 mol-% DES where the liquid arrangement changed. These results demonstrate not only the significant influence that water has on liquid nanostructure, but also show that there is an asymmetric effect whereby water disrupts the nanostructure to a greater degree closer to the surface. This work provides insight into the complex interactions between DES and water and may enhance their optimization for surface-based applications.
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21
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Lin G, Richardson JJ, Ahmed H, Besford QA, Christofferson AJ, Beyer S, Lin Z, Rezk AR, Savioli M, Zhou J, McConville CF, Cortez-Jugo C, Yeo LY, Caruso F. Programmable Phototaxis of Metal-Phenolic Particle Microswimmers. Adv Mater 2021; 33:e2006177. [PMID: 33634513 DOI: 10.1002/adma.202006177] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 01/13/2021] [Indexed: 06/12/2023]
Abstract
Light-driven directional motion is common in nature but remains a challenge for synthetic microparticles, particularly regarding collective motion on a macroscopic scale. Successfully engineering microparticles with light-driven collective motion could lead to breakthroughs in drug delivery, contaminant sensing, environmental remediation, and artificial life. Herein, metal-phenolic particle microswimmers capable of autonomously sensing and swimming toward an external light source are reported, with the speed regulated by the wavelength and intensity of illumination. These microswimmers can travel macroscopic distances (centimeters) and can remain illuminated for hours without degradation of motility. Experimental and theoretical analyses demonstrate that motion is generated through chemical transformations of the organic component of the metal-phenolic complex. Furthermore, cargos with specific spectral absorption profiles can be loaded into the particles and endow the particle microswimmers with activated motion corresponding to these spectral characteristics. The programmable nature of the light navigation, tunable size of the particles, and versatility of cargo loading demonstrate the versatility of these metal-phenolic particle microswimmers.
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Affiliation(s)
- Gan Lin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Joseph J Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Heba Ahmed
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Andrew J Christofferson
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria, 3001, Australia
| | - Sebastian Beyer
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Zhixing Lin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Amgad R Rezk
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Marco Savioli
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Jiajing Zhou
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Chris F McConville
- School of Science, College of Science, Engineering and Health, RMIT University, Melbourne, Victoria, 3001, Australia
| | - Christina Cortez-Jugo
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Leslie Y Yeo
- Micro/Nanophysics Research Laboratory, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
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22
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Lin G, Cortez-Jugo C, Ju Y, Besford QA, Ryan TM, Pan S, Richardson JJ, Caruso F. Microemulsion-Assisted Templating of Metal-Stabilized Poly(ethylene glycol) Nanoparticles. Biomacromolecules 2020; 22:612-619. [PMID: 33337863 DOI: 10.1021/acs.biomac.0c01463] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Poly(ethylene glycol) (PEG) is well known to endow nanoparticles (NPs) with low-fouling and stealth-like properties that can reduce immune system clearance in vivo, making PEG-based NPs (particularly sub-100 nm) of interest for diverse biomedical applications. However, the preparation of sub-100 nm PEG NPs with controllable size and morphology is challenging. Herein, we report a strategy based on the noncovalent coordination between PEG-polyphenolic ligands (PEG-gallol) and transition metal ions using a water-in-oil microemulsion phase to synthesize sub-100 nm PEG NPs with tunable size and morphology. The metal-phenolic coordination drives the self-assembly of the PEG-gallol/metal NPs: complexation between MnII and PEG-gallol within the microemulsions yields a series of metal-stabilized PEG NPs, including 30-50 nm solid and hollow NPs, depending on the MnII/gallol feed ratio. Variations in size and morphology are attributed to the changes in hydrophobicity of the PEG-gallol/MnII complexes at varying MnII/gallol ratios based on contact angle measurements. Small-angle X-ray scattering analysis, which is used to monitor the particle size and intermolecular interactions during NP evolution, reveals that ionic interactions are the dominant driving force in the formation of the PEG-gallol/MnII NPs. pH and cytotoxicity studies, and the low-fouling properties of the PEG-gallol/MnII NPs confirm their high biocompatibility and functionality, suggesting that PEG polyphenol-metal NPs are promising systems for biomedical applications.
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Affiliation(s)
- Gan Lin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and The Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Christina Cortez-Jugo
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and The Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Yi Ju
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and The Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and The Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.,Leibniz Institute for Polymer Research, Hohe Straße 6, Dresden 01069, Germany
| | - Timothy M Ryan
- Australian Synchrotron, ANSTO, 800 Blackburn Rd., Clayton, Victoria 3168, Australia
| | - Shuaijun Pan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and The Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Joseph J Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and The Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and The Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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23
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Besford QA, Weiss ACG, Schubert J, Ryan TM, Maitz MF, Tomanin PP, Savioli M, Werner C, Fery A, Caruso F, Cavalieri F. Protein Component of Oyster Glycogen Nanoparticles: An Anchor Point for Functionalization. ACS Appl Mater Interfaces 2020; 12:38976-38988. [PMID: 32805918 DOI: 10.1021/acsami.0c10699] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Biosourced nanoparticles have a range of desirable properties for therapeutic applications, including biodegradability and low immunogenicity. Glycogen, a natural polysaccharide nanoparticle, has garnered much interest as a component of advanced therapeutic materials. However, functionalizing glycogen for use as a therapeutic material typically involves synthetic approaches that can negatively affect the intrinsic physiological properties of glycogen. Herein, the protein component of glycogen is examined as an anchor point for the photopolymerization of functional poly(N-isopropylacrylamide) (PNIPAM) polymers. Oyster glycogen (OG) nanoparticles partially degrade to smaller spherical particles in the presence of protease enzymes, reflecting a population of surface-bound proteins on the polysaccharide. The grafting of PNIPAM to the native protein component of OG produces OG-PNIPAM nanoparticles of ∼45 nm in diameter and 6.2 MDa in molecular weight. PNIPAM endows the nanoparticles with temperature-responsive aggregation properties that are controllable and reversible and that can be removed by the biodegradation of the protein. The OG-PNIPAM nanoparticles retain the native biodegradability of glycogen. Whole blood incubation assays revealed that the OG-PNIPAM nanoparticles have a low cell association and inflammatory response similar to that of OG. The reported strategy provides functionalized glycogen nanomaterials that retain their inherent biodegradability and low immune cell association.
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Affiliation(s)
- Quinn A Besford
- Leibniz Institute for Polymer Research, Hohe Straße 6, 01069 Dresden, Germany
| | - Alessia C G Weiss
- Leibniz Institute for Polymer Research, Hohe Straße 6, 01069 Dresden, Germany
| | - Jonas Schubert
- Leibniz Institute for Polymer Research, Hohe Straße 6, 01069 Dresden, Germany
| | - Timothy M Ryan
- The Australian Synchrotron, Clayton, Victoria 3168, Australia
| | - Manfred F Maitz
- Leibniz Institute for Polymer Research, Hohe Straße 6, 01069 Dresden, Germany
| | - Pietro Pacchin Tomanin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Marco Savioli
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Carsten Werner
- Leibniz Institute for Polymer Research, Hohe Straße 6, 01069 Dresden, Germany
| | - Andreas Fery
- Leibniz Institute for Polymer Research, Hohe Straße 6, 01069 Dresden, Germany
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Francesca Cavalieri
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia
- Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma "Tor Vergata", Via Della Ricerca Scientifica 1, 00133 Rome, Italy
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24
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Besford QA, Christofferson AJ, Kalayan J, Sommer JU, Henchman RH. The Attraction of Water for Itself at Hydrophobic Quartz Interfaces. J Phys Chem B 2020; 124:6369-6375. [PMID: 32589426 DOI: 10.1021/acs.jpcb.0c04545] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Structural forces within aqueous water at a solid interface can significantly change surface reactivity and the affinity of solutes toward it. We show using molecular dynamics simulations how hydrophilic and hydrophobic quartz surfaces perturb the orientational structure of aqueous water, ultimately strengthening dipolar forces between molecules in proximity to the interface. When derived as a function of distance from each surface, it was found that both surfaces indirectly enhance the long-range dipolar attraction of water for itself toward the interfacial region. This was found to be longer-ranged for water molecules solvating the hydrophobic surface than those solvating the hydrophilic surface, with a range of up to 2.5 nm from the hydrophobic surface. Our results give direct quantification of surface-induced changes in solvent-solvent attraction, ultimately providing a counterintuitive addition to the balance of hydrophobic forces at aqueous-solid interfaces.
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Affiliation(s)
- Quinn A Besford
- Institute of Physical Chemistry and Polymer Physics, Leibniz Institute for Polymer Research Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | | | - Jas Kalayan
- Manchester Institute of Biotechnology, The University of Manchester, Manchester M13 9PL, U.K.,School of Chemistry, The University of Manchester, Oxford M13 9PL, U.K
| | - Jens-Uwe Sommer
- Institute Theory of Polymers, Leibniz Institute for Polymer Research Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Richard H Henchman
- Manchester Institute of Biotechnology, The University of Manchester, Manchester M13 9PL, U.K.,School of Chemistry, The University of Manchester, Oxford M13 9PL, U.K
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25
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Weiss ACG, Herold HM, Lentz S, Faria M, Besford QA, Ang CS, Caruso F, Scheibel T. Surface Modification of Spider Silk Particles to Direct Biomolecular Corona Formation. ACS Appl Mater Interfaces 2020; 12:24635-24643. [PMID: 32369330 DOI: 10.1021/acsami.0c06344] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In recent years, spider silk-based materials have attracted attention because of their biocompatibility, processability, and biodegradability. For their potential use in biomaterial applications, i.e., as drug delivery systems and implant coatings for tissue regeneration, it is vital to understand the interactions between the silk biomaterial surface and the biological environment. Like most polymeric carrier systems, spider silk material surfaces can adsorb proteins when in contact with blood, resulting in the formation of a biomolecular corona. Here, we assessed the effect of surface net charge of materials made of recombinant spider silk on the biomolecular corona composition. In-depth proteomic analysis of the biomolecular corona revealed that positively charged spider silk materials surfaces interacted predominantly with fibrinogen-based proteins. This fibrinogen enrichment correlated with blood clotting observed for both positively charged spider silk films and particles. In contrast, negative surface charges prevented blood clotting. Genetic engineering allows the fine-tuning of surface properties of the spider silk particles providing a whole set of recombinant spider silk proteins with different charges or peptide tags to be used for, for example, drug delivery or cell docking, and several of these were analyzed concerning the composition of their biomolecular corona. Taken together this study demonstrates how the surface net charge of recombinant spider silk surfaces affects the composition of the biomolecular corona, which in turn affects macroscopic effects such as fibrin formation and blood clotting.
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Affiliation(s)
- Alessia C G Weiss
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Victoria 3010, Australia
| | - Heike M Herold
- Lehrstuhl für Biomaterialien, Universität Bayreuth, Prof. Rüdiger-Bormann-Strasse 1, Bayreuth 95447, Germany
| | - Sarah Lentz
- Lehrstuhl für Biomaterialien, Universität Bayreuth, Prof. Rüdiger-Bormann-Strasse 1, Bayreuth 95447, Germany
| | - Matthew Faria
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne, Parkville, Victoria 3052, Australia
- Systems Biology Laboratory, School of Mathematics and Statistics, and the Department of Biomedical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Quinn A Besford
- Leibniz-Institute für Polymerforschung, Hohe Straβe 6, Dresden 01069 , Germany
| | - Ching-Seng Ang
- Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering, The University of Melbourne, Victoria 3010, Australia
| | - Thomas Scheibel
- Lehrstuhl für Biomaterialien, Universität Bayreuth, Prof. Rüdiger-Bormann-Strasse 1, Bayreuth 95447, Germany
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Universität Bayreuth, Bayreuth 95440, Germany
- Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Universität Bayreuth, Bayreuth 95440, Germany
- Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Bayreuth 95440, Germany
- Bayerisches Polymerinstitut (BPI), Universität Bayreuth, Bayreuth 95440, Germany
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26
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Besford QA, Cavalieri F, Caruso F. Glycogen as a Building Block for Advanced Biological Materials. Adv Mater 2020; 32:e1904625. [PMID: 31617264 DOI: 10.1002/adma.201904625] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/15/2019] [Indexed: 06/10/2023]
Abstract
Biological nanoparticles found in living systems possess distinct molecular architectures and diverse functions. Glycogen is a unique biological polysaccharide nanoparticle fabricated by nature through a bottom-up approach. The biocatalytic synthesis of glycogen has evolved over time to form a nanometer-sized dendrimer-like structure (20-150 nm) with a highly branched surface and a dense core. This makes glycogen markedly different from other natural linear or branched polysaccharides and particularly attractive as a platform for biomedical applications. Glycogen is inherently biodegradable, nontoxic, and can be functionalized with diverse surface and internal motifs for enhanced biofunctional properties. Recently, there has been growing interest in glycogen as a natural alternative to synthetic polymers and nanoparticles in a range of applications. Herein, the recent literature on glycogen in the material-based sciences, including its use as a constituent in biodegradable hydrogels and fibers, drug delivery vectors, tumor targeting and penetrating nanoparticles, immunomodulators, vaccine adjuvants, and contrast agents, is reviewed. The various methods of chemical functionalization and physical assembly of glycogen nanoparticles into multicomponent nanodevices, which advance glycogen toward a functional therapeutic nanoparticle from nature and back again, are discussed in detail.
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Affiliation(s)
- Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Francesca Cavalieri
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma Tor Vergata, via della Ricerca Scientifica 1, 00133, Rome, Italy
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
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27
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Zhang W, Besford QA, Christofferson AJ, Charchar P, Richardson JJ, Elbourne A, Kempe K, Hagemeyer CE, Field MR, McConville CF, Yarovsky I, Caruso F. Cobalt-Directed Assembly of Antibodies onto Metal-Phenolic Networks for Enhanced Particle Targeting. Nano Lett 2020; 20:2660-2666. [PMID: 32155075 DOI: 10.1021/acs.nanolett.0c00295] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The orientation-specific immobilization of antibodies onto nanoparticles, to preserve antibody-antigen recognition, is a key challenge in developing targeted nanomedicines. Herein, we report the targeting ability of metal-phenolic network (MPN)-coated gold nanoparticles with surface-physisorbed antibodies against respective antigens. The MPN coatings were self-assembled from metal ions (FeIII, CoII, CuII, NiII, or ZnII) cross-linked with tannic acid. Upon physisorption of antibodies, all particle systems exhibited enhanced association with target antigens, with CoII systems demonstrating more than 2-fold greater association. These systems contained more metal atoms distributed in a way to specifically interact with antibodies, which were investigated by molecular dynamics simulations. A model antibody fragment crystallizable (Fc) region in solution with CoII-tannic acid complexes revealed that the solvent-exposed CoII can directly coordinate to the histidine-rich portion of the Fc region. This one-pot interaction suggests anchoring of the antibody Fc region to the MPN on nanoparticles, allowing for enhanced targeting.
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Affiliation(s)
- Wenjie Zhang
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | | | - Patrick Charchar
- School of Engineering, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Joseph J Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Aaron Elbourne
- Nanobiotechnology Laboratory, School of Science, RMIT University, Melbourne Victoria 3001, Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Christoph E Hagemeyer
- NanoBiotechnology Laboratory, Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria 3004, Australia
| | - Matthew R Field
- RMIT Microscopy & Microanalysis Facility, RMIT University, Melbourne, Victoria 3001, Australia
| | - Chris F McConville
- College of Science, Engineering and Health, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Irene Yarovsky
- School of Engineering, RMIT University, GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
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28
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Pan S, Guo R, Bertleff‐Zieschang N, Li S, Besford QA, Zhong Q, Yun G, Zhang Y, Cavalieri F, Ju Y, Goudeli E, Richardson JJ, Caruso F. Modular Assembly of Host–Guest Metal–Phenolic Networks Using Macrocyclic Building Blocks. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912296] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shuaijun Pan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Rui Guo
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
- Present address: State Key Laboratory of Chemo/Biosensing and Chemometrics, and College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Nadja Bertleff‐Zieschang
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Shanshan Li
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
- Present address: College of Pharmaceutical Sciences Southwest University Chongqing 400715 China
| | - Quinn A. Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
- Present address: Department of Nanostructured Materials Leibniz Institute of Polymer Research Hohe Str. 6 01069 Dresden Germany
| | - Qi‐Zhi Zhong
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Gyeongwon Yun
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Yunti Zhang
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Francesca Cavalieri
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Yi Ju
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Eirini Goudeli
- Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Joseph J. Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
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29
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Pan S, Guo R, Bertleff‐Zieschang N, Li S, Besford QA, Zhong Q, Yun G, Zhang Y, Cavalieri F, Ju Y, Goudeli E, Richardson JJ, Caruso F. Modular Assembly of Host–Guest Metal–Phenolic Networks Using Macrocyclic Building Blocks. Angew Chem Int Ed Engl 2019; 59:275-280. [DOI: 10.1002/anie.201912296] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/20/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Shuaijun Pan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Rui Guo
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
- Present address: State Key Laboratory of Chemo/Biosensing and Chemometrics, and College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Nadja Bertleff‐Zieschang
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Shanshan Li
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
- Present address: College of Pharmaceutical Sciences Southwest University Chongqing 400715 China
| | - Quinn A. Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
- Present address: Department of Nanostructured Materials Leibniz Institute of Polymer Research Hohe Str. 6 01069 Dresden Germany
| | - Qi‐Zhi Zhong
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Gyeongwon Yun
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Yunti Zhang
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Francesca Cavalieri
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Yi Ju
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Eirini Goudeli
- Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Joseph J. Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
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30
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Pan S, Guo R, Richardson JJ, Berry JD, Besford QA, Björnmalm M, Yun G, Wu R, Lin Z, Zhong Q, Zhou J, Sun Q, Li J, Lu Y, Dong Z, Banks MK, Xu W, Jiang J, Jiang L, Caruso F. Ricocheting Droplets Moving on Super-Repellent Surfaces. Adv Sci (Weinh) 2019; 6:1901846. [PMID: 31728297 PMCID: PMC6839626 DOI: 10.1002/advs.201901846] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/15/2019] [Indexed: 05/08/2023]
Abstract
Droplet bouncing on repellent solid surfaces (e.g., the lotus leaf effect) is a common phenomenon that has aroused interest in various fields. However, the scenario of a droplet bouncing off another droplet (either identical or distinct chemical composition) while moving on a solid material (i.e., ricocheting droplets, droplet billiards) is scarcely investigated, despite it having fundamental implications in applications including self-cleaning, fluid transport, and heat and mass transfer. Here, the dynamics of bouncing collisions between liquid droplets are investigated using a friction-free platform that ensures ultrahigh locomotion for a wide range of probing liquids. A general prediction on bouncing droplet-droplet contact time is elucidated and bouncing droplet-droplet collision is demonstrated to be an extreme case of droplet bouncing on surfaces. Moreover, the maximum deformation and contact time are highly dependent on the position where the collision occurs (i.e., head-on or off-center collisions), which can now be predicted using parameters (i.e., effective velocity, effective diameter) through the concept of an effective interaction region. The results have potential applications in fields ranging from microfluidics to repellent coatings.
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Affiliation(s)
- Shuaijun Pan
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha410082China
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Rui Guo
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha410082China
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Joseph J. Richardson
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Joseph D. Berry
- Department of Chemical Engineering and the Particulate Fluids Processing CentreThe University of MelbourneParkvilleVictoria3010Australia
| | - Quinn A. Besford
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Mattias Björnmalm
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
- Department of MaterialsDepartment of Bioengineering, and the Institute of Biomedical EngineeringImperial College LondonLondonSW7 2AZUK
| | - Gyeongwon Yun
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Ruoxi Wu
- Zachry Department of Civil EngineeringTexas A&M University3136 TAMUCollege StationTX77843‐3136USA
- Department of Water Science and EngineeringCollege of Civil EngineeringHunan UniversityChangsha410082China
| | - Zhixing Lin
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Qi‐Zhi Zhong
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Jiajing Zhou
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Qiang Sun
- Department of Chemical Engineering and the Particulate Fluids Processing CentreThe University of MelbourneParkvilleVictoria3010Australia
| | - Jianhua Li
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
| | - Yanbing Lu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha410082China
| | - Zhichao Dong
- CAS Key Laboratory of Bio‐inspired Materials and Interfacial SciencesTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing100190China
| | - Margaret Katherine Banks
- Zachry Department of Civil EngineeringTexas A&M University3136 TAMUCollege StationTX77843‐3136USA
| | - Weijian Xu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha410082China
| | - Jianhui Jiang
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan UniversityChangsha410082China
| | - Lei Jiang
- CAS Key Laboratory of Bio‐inspired Materials and Interfacial SciencesTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing100190China
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio‐Nano Science and Technology, and the Department of Chemical EngineeringThe University of MelbourneParkvilleVictoria3010Australia
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Weiss ACG, Kelly HG, Faria M, Besford QA, Wheatley AK, Ang CS, Crampin EJ, Caruso F, Kent SJ. Link between Low-Fouling and Stealth: A Whole Blood Biomolecular Corona and Cellular Association Analysis on Nanoengineered Particles. ACS Nano 2019; 13:4980-4991. [PMID: 30998312 DOI: 10.1021/acsnano.9b00552] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Upon exposure to human blood, nanoengineered particles interact with a multitude of plasma components, resulting in the formation of a biomolecular corona. This corona modulates downstream biological responses, including recognition by and association with human immune cells. Considerable research effort has been directed toward the design of materials that can demonstrate a low affinity for various proteins (low-fouling materials) and materials that can exhibit low association with human immune cells (stealth materials). An implicit assumption common to bio-nano research is that nanoengineered particles that are low-fouling will also exhibit stealth. Herein, we investigated the link between the low-fouling properties of a particle and its propensity for stealth in whole human blood. High-fouling mesoporous silica (MS) particles and low-fouling zwitterionic poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC) particles were synthesized, and their interaction with blood components was assessed before and after precoating with serum albumin, immunoglobulin G, or complement protein C1q. We performed an in-depth proteomics characterization of the biomolecular corona that both identifies specific proteins and measures their relative abundance. This was compared with observations from a whole blood association assay that identified with which cell type each particle system associates. PMPC-based particles displayed reduced association both with cells and with serum proteins compared with MS-based particles. Furthermore, the enrichment of specific proteins within the biomolecular corona was found to correlate with association with specific cell types. This study demonstrates how the low-fouling properties of a material are indicative of its stealth with respect to immune cell association.
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Affiliation(s)
- Alessia C G Weiss
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Hannah G Kelly
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity , The University of Melbourne , Parkville , Victoria 3010 , Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Parkville , Victoria 3010 , Australia
| | - Matthew Faria
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Parkville , Victoria 3010 , Australia
- Systems Biology Laboratory, School of Mathematics and Statistics, and the Department of Biomedical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Adam K Wheatley
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity , The University of Melbourne , Parkville , Victoria 3010 , Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Parkville , Victoria 3010 , Australia
| | - Ching-Seng Ang
- Bio21 Molecular Science and Biotechnology Institute , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Edmund J Crampin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Parkville , Victoria 3010 , Australia
- Systems Biology Laboratory, School of Mathematics and Statistics, and the Department of Biomedical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Stephen J Kent
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity , The University of Melbourne , Parkville , Victoria 3010 , Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology , Parkville , Victoria 3010 , Australia
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Lin G, Rahim MA, Leeming MG, Cortez-Jugo C, Besford QA, Ju Y, Zhong QZ, Johnston ST, Zhou J, Caruso F. Selective Metal-Phenolic Assembly from Complex Multicomponent Mixtures. ACS Appl Mater Interfaces 2019; 11:17714-17721. [PMID: 31038907 DOI: 10.1021/acsami.9b04195] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Selective self-assembly in multicomponent mixtures offers a method for isolating desired components from complex systems for the rapid production of functional materials. Developing approaches capable of selective assembly of "target" components into intended three-dimensional structures is challenging because of the intrinsically high complexity of multicomponent systems. Herein, we report the selective coordination-driven self-assembly of metal-phenolic networks (MPNs) from a series of complex multicomponent systems (including crude plant extracts) into thin films via metal chelation with phenolic ligands. The metal (FeIII) selectively assembles low abundant phenolic components (e.g., myricetrin and quercetrin) from plant extracts into thin films. This selective metal-phenolic assembly is independent of the substrate properties (e.g., size, surface charge, and shape). Moreover, the high selectivity is consistent across different target phenolic ligands in model mixtures, even though each individual component can form thin films from single-component systems. A computational simulation of film formation suggests that the driving force for the selective behavior stems from differences in the number of chelating sites in the phenolic structures. The MPN films are shown to demonstrate improved antioxidant properties compared with the corresponding phenolic compounds in their free form, therefore exhibiting potential as free-standing antioxidant films.
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Zhang W, Christofferson AJ, Besford QA, Richardson JJ, Guo J, Ju Y, Kempe K, Yarovsky I, Caruso F. Metal-dependent inhibition of amyloid fibril formation: synergistic effects of cobalt-tannic acid networks. Nanoscale 2019; 11:1921-1928. [PMID: 30644497 DOI: 10.1039/c8nr09221d] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Metal-phenolic networks (MPNs) have received widespread interest owing to their modular incorporation of functional metal ions and phenolic ligands. However, the interaction between MPNs and biomolecules is still relatively unexplored. Herein, we studied the effects of MPN-coated gold nanoparticles on amyloid fibril formation (which is associated with Alzheimer's disease) as a function of the metal ion in the MPN systems. All coated particles examined inhibited amyloid formation, with cobalt(ii) MPN-coated particles exhibiting the highest inhibition activity (90%). Molecular dynamics simulations and quantum mechanics calculations suggested that the geometry of the exposed cobalt coordination site in the cobalt-tannic acid networks facilitates its interactions with histidine and methionine residues in the amyloid beta peptides. Furthermore, the unique structure of cobalt MPNs may enable a wider variety of biomedical applications.
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Affiliation(s)
- Wenjie Zhang
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
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Weiss ACG, Krüger K, Besford QA, Schlenk M, Kempe K, Förster S, Caruso F. In Situ Characterization of Protein Corona Formation on Silica Microparticles Using Confocal Laser Scanning Microscopy Combined with Microfluidics. ACS Appl Mater Interfaces 2019; 11:2459-2469. [PMID: 30600987 DOI: 10.1021/acsami.8b14307] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In biological fluids, proteins bind to particles, forming so-called protein coronas. Such adsorbed protein layers significantly influence the biological interactions of particles, both in vitro and in vivo. The adsorbed protein layer is generally described as a two-component system comprising "hard" and "soft" protein coronas. However, a comprehensive picture regarding the protein corona structure is lacking. Herein, we introduce an experimental approach that allows for in situ monitoring of protein adsorption onto silica microparticles. The technique, which mimics flow in vascularized tumors, combines confocal laser scanning microscopy with microfluidics and allows the study of the time-evolution of protein corona formation. Our results show that protein corona formation is kinetically divided into three different phases: phase 1, proteins irreversibly and directly bound (under physiologically relevant conditions) to the particle surface; phase 2, irreversibly bound proteins interacting with preadsorbed proteins, and phase 3, reversibly bound "soft" protein corona proteins. Additionally, we investigate particle-protein interactions on low-fouling zwitterionic-coated particles where the adsorption of irreversibly bound proteins does not occur, and on such particles, only a "soft" protein corona is formed. The reported approach offers the potential to define new state-of-the art procedures for kinetics and protein fouling experiments.
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Affiliation(s)
- Alessia C G Weiss
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , 3010 Victoria , Australia
| | - Kilian Krüger
- Physical Chemistry I , University of Bayreuth , Universitätsstraβe 30 , 95447 Bayreuth , Germany
- JCSN-1/ICS-1 , Forschungszentrum Jülich GmbH , Wilhelm-Johnen-Straβe , 52428 Jülich , Germany
| | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , 3010 Victoria , Australia
| | - Mathias Schlenk
- Physical Chemistry I , University of Bayreuth , Universitätsstraβe 30 , 95447 Bayreuth , Germany
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and Monash Institute of Pharmaceutical Sciences , Monash University , Parkville , 3052 Victoria , Australia
| | - Stephan Förster
- Physical Chemistry I , University of Bayreuth , Universitätsstraβe 30 , 95447 Bayreuth , Germany
- JCSN-1/ICS-1 , Forschungszentrum Jülich GmbH , Wilhelm-Johnen-Straβe , 52428 Jülich , Germany
- Physical Chemistry , RWTH Aachen University , 52074 Aachen , Germany
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , 3010 Victoria , Australia
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Tomanin PP, Cherepanov PV, Besford QA, Christofferson AJ, Amodio A, McConville CF, Yarovsky I, Caruso F, Cavalieri F. Cobalt Phosphate Nanostructures for Non-Enzymatic Glucose Sensing at Physiological pH. ACS Appl Mater Interfaces 2018; 10:42786-42795. [PMID: 30422616 DOI: 10.1021/acsami.8b12966] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nanostructured materials have potential as platforms for analytical assays and catalytic reactions. Herein, we report the synthesis of electrocatalytically active cobalt phosphate nanostructures (CPNs) using a simple, low-cost, and scalable preparation method. The electrocatalytic properties of CPNs toward the electrooxidation of glucose (Glu) were studied by cyclic voltammetry and chronoamperometry in relevant biological electrolytes, such as phosphate-buffered saline (PBS), at physiological pH (7.4). Using CPNs, Glu detection could be achieved over a wide range of biologically relevant concentrations, from 1 to 30 mM Glu in PBS, with a sensitivity of 7.90 nA/mM cm2 and a limit of detection of 0.3 mM, thus fulfilling the necessary requirements for human blood Glu detection. In addition, CPNs showed a high structural and functional stability over time at physiological pH. The CPN-coated electrodes could also be used for Glu detection in the presence of interfering agents (e.g., ascorbic acid and dopamine) and in human serum. Density functional theory calculations were performed to evaluate the interaction of Glu with different faceted cobalt phosphate surfaces; the results revealed that specific surface presentations of under-coordinated cobalt led to the strongest interaction with Glu, suggesting that enhanced detection of Glu by CPNs can be achieved by lowering the surface coordination of cobalt. Our results highlight the potential use of phosphate-based nanostructures as catalysts for electrochemical sensing of biochemical analytes.
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Affiliation(s)
- Pietro Pacchin Tomanin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Pavel V Cherepanov
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | | | - Alessia Amodio
- Department of Chemical Science and Technologies , University of Rome Tor Vergata , via della ricerca scientifica 1 , 00133 Rome , Italy
| | | | | | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
| | - Francesca Cavalieri
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering , The University of Melbourne , Parkville , Victoria 3010 , Australia
- Department of Chemical Science and Technologies , University of Rome Tor Vergata , via della ricerca scientifica 1 , 00133 Rome , Italy
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Besford QA, Ju Y, Wang TY, Yun G, Cherepanov P, Hagemeyer CE, Cavalieri F, Caruso F. Self-Assembled Metal-Phenolic Networks on Emulsions as Low-Fouling and pH-Responsive Particles. Small 2018; 14:e1802342. [PMID: 30156378 DOI: 10.1002/smll.201802342] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/24/2018] [Indexed: 06/08/2023]
Abstract
Interfacial self-assembly is a powerful organizational force for fabricating functional nanomaterials, including nanocarriers, for imaging and drug delivery. Herein, the interfacial self-assembly of pH-responsive metal-phenolic networks (MPNs) on the liquid-liquid interface of oil-in-water emulsions is reported. Oleic acid emulsions of 100-250 nm in diameter are generated by ultrasonication, to which poly(ethylene glycol) (PEG)-based polyphenolic ligands are assembled with simultaneous crosslinking by metal ions, thus forming an interfacial MPN. PEG provides a protective barrier on the emulsion phase and renders the emulsion low fouling. The MPN-coated emulsions have a similar size and dispersity, but an enhanced stability when compared with the uncoated emulsions, and exhibit a low cell association in vitro, a blood circulation half-life of ≈50 min in vivo, and are nontoxic to healthy mice. Furthermore, a model anticancer drug, doxorubicin, can be encapsulated within the emulsion phase at a high loading capacity (≈5 fg of doxorubicin per emulsion particle). The MPN coating imparts pH-responsiveness to the drug-loaded emulsions, leading to drug release at cell internalization pH and a potent cell cytotoxicity. The results highlight a straightforward strategy for the interfacial nanofabrication of pH-responsive emulsion-MPN systems with potential use in biomedical applications.
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Affiliation(s)
- Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Yi Ju
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Ting-Yi Wang
- NanoBiotechnology Laboratory, Australian Centre for Blood Diseases, Monash University, Victoria, 3004, Australia
| | - Gyeongwon Yun
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - PavelV Cherepanov
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Christoph E Hagemeyer
- NanoBiotechnology Laboratory, Australian Centre for Blood Diseases, Monash University, Victoria, 3004, Australia
| | - Francesca Cavalieri
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
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Guo J, Richardson JJ, Besford QA, Christofferson AJ, Dai Y, Ong CW, Tardy BL, Liang K, Choi GH, Cui J, Yoo PJ, Yarovsky I, Caruso F. Influence of Ionic Strength on the Deposition of Metal-Phenolic Networks. Langmuir 2017; 33:10616-10622. [PMID: 28953397 DOI: 10.1021/acs.langmuir.7b02692] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Metal-phenolic networks (MPNs) are a versatile class of self-assembled materials that are able to form functional thin films on various substrates with potential applications in areas including drug delivery and catalysis. Different metal ions (e.g., FeIII, CuII) and phenols (e.g., tannic acid, gallic acid) have been investigated for MPN film assembly; however, a mechanistic understanding of the thermodynamics governing MPN formation remains largely unexplored. To date, MPNs have been deposited at low ionic strengths (<5 mM), resulting in films with typical thicknesses of ∼10 nm, and it is still unclear how a bulk complexation reaction results in homogeneous thin films when a substrate is present. Herein we explore the influence of ionic strength (0-2 M NaCl) on the conformation of MPN precursors in solution and how this determines the final thickness and morphology of MPN films. Specifically, the film thickness increases from 10 nm in 0 M NaCl to 12 nm in 0.5 M NaCl and 15 nm in 1 M NaCl, after which the films grow rougher rather than thicker. For example, the root-mean-square roughness values of the films are constant below 1 M NaCl at 1.5 nm; in contrast, the roughness is 3 nm at 1 M NaCl and increases to 5 nm at 2 M NaCl. Small-angle X-ray scattering and molecular dynamics simulations allow for comparisons to be made with chelated metals and polyelectrolyte thin films. For example, at a higher ionic strength (2 M NaCl), sodium ions shield the galloyl groups of tannic acid, allowing them to extend away from the FeIII center and interact with other MPN complexes in solution to form thicker and rougher films. As the properties of films determine their final performance and application, the ability to tune both thickness and roughness using salts may allow for new applications of MPNs.
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Affiliation(s)
- Junling Guo
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne , Parkville, Victoria 3010, Australia
- Department of Chemical Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Joseph J Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne , Parkville, Victoria 3010, Australia
- Department of Chemical Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
- CSIRO Manufacturing Flagship, CSIRO , Clayton South, Victoria 3169, Australia
| | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne , Parkville, Victoria 3010, Australia
- Department of Chemical Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | | | - Yunlu Dai
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne , Parkville, Victoria 3010, Australia
- Department of Chemical Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Chien W Ong
- Department of Chemical Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Blaise L Tardy
- Department of Chemical Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Kang Liang
- CSIRO Manufacturing Flagship, CSIRO , Clayton South, Victoria 3169, Australia
- School of Chemical Engineering and Graduate School of Biomedical Engineering, The University of New South Wales , Sydney, New South Wales 2052, Australia
| | - Gwan H Choi
- School of Chemical Engineering and SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU) , Suwon 16419, Republic of Korea
| | - Jiwei Cui
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne , Parkville, Victoria 3010, Australia
- Department of Chemical Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Pil J Yoo
- School of Chemical Engineering and SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU) , Suwon 16419, Republic of Korea
| | - Irene Yarovsky
- School of Engineering, RMIT University , GPO Box 2476, Melbourne, Victoria 3001, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Melbourne , Parkville, Victoria 3010, Australia
- Department of Chemical Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
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Besford QA, Wojnilowicz M, Suma T, Bertleff-Zieschang N, Caruso F, Cavalieri F. Lactosylated Glycogen Nanoparticles for Targeting Prostate Cancer Cells. ACS Appl Mater Interfaces 2017; 9:16869-16879. [PMID: 28362077 DOI: 10.1021/acsami.7b02676] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Glyconanoparticles that exhibit multivalent binding to lectins are desirable for molecular recognition and therapeutic applications. Herein we explore the use of glycogen nanoparticles as a biosourced glycoscaffold for engineering multivalent glyconanoparticles. Glycogen nanoparticles, a naturally occurring highly branched polymer of glucose, was functionalized with lactose, achieved through copper(I)-catalyzed alkyne-azide cycloaddition chemistry, for targeted interaction with lectins ex situ and on prostate cancer cells. The lactosylated glycogen, which contains terminal β-galactoside moieties, is termed galacto-glycogen (GG), and is found to interact strongly with peanut agglutinin (PNA), a β-galactoside-specific lectin, as observed by optical waveguide lightmode spectroscopy, dynamic light scattering, and quartz crystal microbalance measurements. The GG nanoparticles exhibit multivalent binding to PNA with an affinity constant of 3.4 × 105 M-1, and the GG-PNA complex cannot be displaced by lactose, demonstrating the competitive binding of GG to the lectin. These GG nanoparticles were tested for association with prostate cancer cell membranes in vitro, where the particles exhibited a high affinity for the membrane, as observed from flow cytometry and confocal microscopy. This is inferred to result from specific extracellular galectin-1 targeting. Furthermore, the GG nanoparticles induce aggregation between prostate cancer cells. Our results highlight a strategy for engineering a biosourced polysaccharide with surface moieties that exhibit strong multivalent interactions with lectins, and targeted interaction with prostate cancer cells.
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Affiliation(s)
- Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Marcin Wojnilowicz
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Tomoya Suma
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Nadja Bertleff-Zieschang
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
| | - Francesca Cavalieri
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne , Parkville, Victoria 3010, Australia
- Dipartimento di Scienze e Tecnologie Chimiche, Universita' degli Studi di Roma "Tor Vergata", via della ricerca scientifica 1 , 00173 Rome, Italy
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Chen X, Cui J, Ping Y, Suma T, Cavalieri F, Besford QA, Chen G, Braunger JA, Caruso F. Probing cell internalisation mechanics with polymer capsules. Nanoscale 2016; 8:17096-17101. [PMID: 27722612 DOI: 10.1039/c6nr06657g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
We report polymer capsule-based probes for quantifying the pressure exerted by cells during capsule internalisation (Pin). Poly(methacrylic acid) (PMA) capsules with tuneable mechanical properties were fabricated through layer-by-layer assembly. The Pin was quantified by correlating the cell-induced deformation with the ex situ osmotically induced deformation of the polymer capsules. Ultimately, we found that human monocyte-derived macrophage THP-1 cells exerted up to approximately 360 kPa on the capsules during internalisation.
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Affiliation(s)
- Xi Chen
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Jiwei Cui
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Yuan Ping
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Tomoya Suma
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Francesca Cavalieri
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Quinn A Besford
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - George Chen
- Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Julia A Braunger
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the Department of Chemical and Biomolecular Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
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Besford QA, Sullivan MA, Zheng L, Gilbert RG, Stapleton D, Gray-Weale A. The structure of cardiac glycogen in healthy mice. Int J Biol Macromol 2012; 51:887-91. [PMID: 22782068 DOI: 10.1016/j.ijbiomac.2012.06.037] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 05/06/2012] [Accepted: 06/26/2012] [Indexed: 12/12/2022]
Abstract
Transmission electron micrographs of glycogen extracted from healthy mouse hearts reveal aggregate structures around 133 nm in diameter. These structures are similar to, but on average somewhat smaller than, the α-particles of glycogen found in mammalian liver. Like the larger liver glycogens, these new particles in cardiac tissue appear to be aggregates of β-particles. Free β-particles are also present in liver, and are the only type of particle seen in skeletal muscle. They have diameters from 20 to 50 nm. We discuss the number distributions of glycogen particle diameters and the implications for the structure-function relationship of glycogens in these tissues. We point out the possible implications for the study of glycogen storage diseases, and of non-insulin dependent diabetes mellitus.
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Affiliation(s)
- Quinn A Besford
- School of Chemistry, University of Melbourne, Victoria 3010, Australia
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