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Charged laser-induced graphene electrodes exhibit strong capacitance-based antibacterial and antiviral properties AITranslate

Sara Beikzadeh; Alireza Akbarinejad; John Taylor; Simon Swift; Denis Simonov; Jacqueline Ross; Janesha Perera; Paul A. Kilmartin; Jadranka TravasSejdic;
The University of Auckland; The University of Auckland; The University of Auckland; The University of Auckland; The University of Auckland; The University of Auckland; The University of Auckland; The University of Auckland; The University of Auckland
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Publisher: Elsevier
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Abstract AITranslate

Highlights • The electrochemical, morphological and structural properties of the laser-induced graphene (LIG) electrodes were studied. • Capacitance-based antibacterial and antiviral properties of LIG were investigated after being charged by 1–2 V. • A direct relation between LIG capacitance and antibacterial properties was observed. • LIG maintained its antibacterial effect after being stored for a week in dry conditions. • The antiviral effect of charged LIG electrodes depended on the magnitude of the charging potential. The demand for antibacterial and antiviral platforms with a broad range of biocidal activity is increasing in modern societies. In this study, capacitance-based antibacterial and antiviral properties of graphene-based materials were investigated after being charged at constant low-voltage potentials (1–2 V). A CO2 laser with different power and speed parameters was used to produce laser-induced graphene (LIG) electrodes with tunable capacitances. The charged electrodes showed high antibacterial and antiviral performance against gram-negative and gram-positive bacteria, as well as non-enveloped and enveloped viruses. The antibacterial effects of the electrodes directly correlated to their capacitance, and the charged LIG electrodes maintained their antibacterial effect after being stored for a week. The antiviral effect of LIGs depended on the type and magnitude of the charging potential. The novel concept of capacitance-based antibacterial and antiviral surfaces is promising in applications where sustainable and environmentally friendly, rechargeable active surfaces are required, such as air filtration, respiratory masks, and various biomedical and public surfaces. Graphical abstract Download : Download high-res image (214KB) Download : Download full-size image

KeyWords AITranslate

Laserinduced graphene Capacitance Lowvoltage disinfection Antibacterial Antiviral
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DOI：https://doi.org/10.1016/j.apmt.2023.101753

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Citation Information:

Highlights • The electrochemical, morphological and structural properties of the laser-induced graphene (LIG) electrodes were studied. • Capacitance-based antibacterial and antiviral properties of LIG were investigated after being charged by 1–2 V. • A direct relation between LIG capacitance and antibacterial properties was observed. • LIG maintained its antibacterial effect after being stored for a week in dry conditions. • The antiviral effect of charged LIG electrodes depended on the magnitude of the charging potential. The demand for antibacterial and antiviral platforms with a broad range of biocidal activity is increasing in modern societies. In this study, capacitance-based antibacterial and antiviral properties of graphene-based materials were investigated after being charged at constant low-voltage potentials (1–2 V). A CO2 laser with different power and speed parameters was used to produce laser-induced graphene (LIG) electrodes with tunable capacitances. The charged electrodes showed high antibacterial and antiviral performance against gram-negative and gram-positive bacteria, as well as non-enveloped and enveloped viruses. The antibacterial effects of the electrodes directly correlated to their capacitance, and the charged LIG electrodes maintained their antibacterial effect after being stored for a week. The antiviral effect of LIGs depended on the type and magnitude of the charging potential. The novel concept of capacitance-based antibacterial and antiviral surfaces is promising in applications where sustainable and environmentally friendly, rechargeable active surfaces are required, such as air filtration, respiratory masks, and various biomedical and public surfaces. Graphical abstract Download : Download high-res image (214KB) Download : Download full-size image

quote

GB/T 7714-2015 [1] Sara Beikzadeh, Alireza Akbarinejad, John Taylor, et al. Applied Materials Today, 2023(31). DOI:10.1016/j.apmt.2023.101753.
MLA [1] Sara Beikzadeh, et al., Applied Materials Today, no. 31, 2023, https://doi.org/10.1016/j.apmt.2023.101753.
APA [1] Sara Beikzadeh, Alireza Akbarinejad, John Taylor, Simon Swift, Denis Simonov, Jacqueline Ross, Janesha Perera, Paul A. Kilmartin, & Jadranka TravasSejdic. (2023). Applied Materials Today(31). https://doi.org/10.1016/j.apmt.2023.101753
IEEE [1] Sara Beikzadeh, Alireza Akbarinejad, John Taylor, Simon Swift, Denis Simonov, Jacqueline Ross, Janesha Perera, Paul A. Kilmartin, and Jadranka TravasSejdic, Applied Materials Today, no. 31, 2023, doi: 10.1016/j.apmt.2023.101753. keywords: {Laserinduced graphene;Capacitance;Lowvoltage disinfection;Antibacterial;Antiviral}