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He Y, Andrade AF, Ménard-Moyon C, Bianco A. Biocompatible 2D Materials via Liquid Phase Exfoliation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2310999. [PMID: 38457626 DOI: 10.1002/adma.202310999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 02/17/2024] [Indexed: 03/10/2024]
Abstract
2D materials (2DMs), such as graphene, transition metal dichalcogenides (TMDs), and black phosphorus (BP), have been proposed for different types of bioapplications, owing to their unique physicochemical, electrical, optical, and mechanical properties. Liquid phase exfoliation (LPE), as one of the most effective up-scalable and size-controllable methods, is becoming the standard process to produce high quantities of various 2DM types as it can benefit from the use of green and biocompatible conditions. The resulting exfoliated layered materials have garnered significant attention because of their biocompatibility and their potential use in biomedicine as new multimodal therapeutics, antimicrobials, and biosensors. This review focuses on the production of LPE-assisted 2DMs in aqueous solutions with or without the aid of surfactants, bioactive, or non-natural molecules, providing insights into the possibilities of applications of such materials in the biological and biomedical fields.
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Affiliation(s)
- Yilin He
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University of Strasbourg, ISIS, Strasbourg, 67000, France
| | - Andrés Felipe Andrade
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University of Strasbourg, ISIS, Strasbourg, 67000, France
| | - Cécilia Ménard-Moyon
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University of Strasbourg, ISIS, Strasbourg, 67000, France
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572, University of Strasbourg, ISIS, Strasbourg, 67000, France
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Carey T, Maughan J, Doolan L, Caffrey E, Garcia J, Liu S, Kaur H, Ilhan C, Seyedin S, Coleman JN. Knot Architecture for Biocompatible and Semiconducting 2D Electronic Fiber Transistors. SMALL METHODS 2024:e2301654. [PMID: 38602193 DOI: 10.1002/smtd.202301654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/26/2024] [Indexed: 04/12/2024]
Abstract
Wearable devices have generally been rigid due to their reliance on silicon-based technologies, while future wearables will utilize flexible components for example transistors within microprocessors to manage data. Two-dimensional (2D) semiconducting flakes have yet to be investigated in fiber transistors but can offer a route toward high-mobility, biocompatible, and flexible fiber-based devices. Here, the electrochemical exfoliation of semiconducting 2D flakes of tungsten diselenide (WSe2) and molybdenum disulfide (MoS2) is shown to achieve homogeneous coatings onto the surface of polyester fibers. The high aspect ratio (>100) of the flake yields aligned and conformal flake-to-flake junctions on polyester fibers enabling transistors with mobilities μ ≈1 cm2 V-1 s-1 and a current on/off ratio, Ion/Ioff ≈102-104. Furthermore, the cytotoxic effects of the MoS2 and WSe2 flakes with human keratinocyte cells are investigated and found to be biocompatible. As an additional step, a unique transistor 'knot' architecture is created by leveraging the fiber diameter to establish the length of the transistor channel, facilitating a route to scale down transistor channel dimensions (≈100 µm) and utilize it to make a MoS2 fiber transistor with a human hair that achieves mobilities as high as μ ≈15 cm2 V-1 s-1.
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Affiliation(s)
- Tian Carey
- School of Physics, CRANN & AMBER Research Centers, Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Jack Maughan
- School of Physics, CRANN & AMBER Research Centers, Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Luke Doolan
- School of Physics, CRANN & AMBER Research Centers, Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Eoin Caffrey
- School of Physics, CRANN & AMBER Research Centers, Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - James Garcia
- School of Physics, CRANN & AMBER Research Centers, Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Shixin Liu
- School of Physics, CRANN & AMBER Research Centers, Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Harneet Kaur
- School of Physics, CRANN & AMBER Research Centers, Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Cansu Ilhan
- School of Physics, CRANN & AMBER Research Centers, Trinity College Dublin, Dublin, Dublin 2, Ireland
| | - Shayan Seyedin
- School of Engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Jonathan N Coleman
- School of Physics, CRANN & AMBER Research Centers, Trinity College Dublin, Dublin, Dublin 2, Ireland
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Powell CD, Pisharody L, Jopp J, Sharon-Gojman R, Tesfahunegn BA, Arnusch CJ. Laser-Induced Graphene Capacitive Killing of Bacteria. ACS APPLIED BIO MATERIALS 2023; 6:883-890. [PMID: 36692432 DOI: 10.1021/acsabm.2c01034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Laser-induced graphene (LIG) is a method of generating a foam-like conformal carbon layer of porous graphene on many types of carbon-based surfaces. This electrically conductive material has been shown to be useful in many applications including environmental technology and includes low fouling and antimicrobial surfaces and can address persistent environmental challenges spawned by bacterial and viral contaminates. Here, we show that a single film of LIG stores charge when an electrical current is applied and dissipates charge when the current is stopped, which results in electricidal surface antibacterial potency. The amount of accumulated and dissipated charge on a single strip of LIG was quantified with an electrometer by generating LIG on both sides of a nonconducting polyimide film, which showed up to 65 pC of charge when the distance between the surfaces was 94 μm corresponding to an areal capacitance of 1.63 pF/cm2. We further corroborate the stored charge decay of a single LIG strip with bacteria death via direct electrical contact. Antimicrobial rates decreased with the same monotonic pattern as the loss of charge from the LIG film (i.e., AR ∼ 97% 0 s after voltage source disconnection vs AR ∼ 21% 90 s after disconnection) showing bacterial death as a function of delayed LIG exposure time after applied voltage disconnection. In terms of energy efficiency, this translates to an increased bacteria potency of ∼170% for the equivalent energy costs as that previously estimated. Finally, we present a mechanistic explanation for the capacitive behavior and the electricidal effects for a single plate of LIG.
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Affiliation(s)
- Camilah D Powell
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boqer Campus, Midreshet Ben Gurion8499000, Israel
| | - Lakshmi Pisharody
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boqer Campus, Midreshet Ben Gurion8499000, Israel
| | - Jürgen Jopp
- Department of Chemistry and the Ilse Katz Institute for Nanotechnology, Ben Gurion University of the Negev, Beersheva84105, Israel
| | - Revital Sharon-Gojman
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boqer Campus, Midreshet Ben Gurion8499000, Israel
| | - Brhane A Tesfahunegn
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boqer Campus, Midreshet Ben Gurion8499000, Israel
| | - Christopher J Arnusch
- Department of Desalination and Water Treatment, Zuckerberg Institute for Water Research, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boqer Campus, Midreshet Ben Gurion8499000, Israel
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