3D-printed graphene polylactic acid devices resistant to SARS-CoV-2:
Sunlight-mediated sterilization of additive manufactured objects

Flavio De Maio; Enrico Rosa; Giordano Perini; Alberto Augello; Benedetta Niccolini; Francesca Ciaiola; Giulia Santarelli; Francesca Sciandra; Manuela Bozzi; Maurizio Sanguinetti; Michela Sali; Marco De Spirito; Giovanni Delogu; Valentina Palmieri; Massimiliano Papi

doi:10.1016/j.carbon.2022.03.036

3D-printed graphene polylactic acid devices resistant to SARS-CoV-2: Sunlight-mediated sterilization of additive manufactured objects

Flavio De Maio, Enrico Rosa, Giordano Perini, Alberto Augello, Benedetta Niccolini, Francesca Ciaiola, Giulia Santarelli, Francesca Sciandra, Manuela Bozzi, Maurizio Sanguinetti, Michela Sali, Marco De Spirito, Giovanni Delogu, Valentina Palmieri^*, Massimiliano Papi^*

^*Corresponding author

Research output: Contribution to journal › Article

Abstract

Additive manufacturing has played a crucial role in the COVID-19 global emergency allowing for rapid production of medical devices, indispensable tools for hospitals, or personal protection equipment. However, medical devices, especially in nosocomial environments, represent high touch surfaces prone to viral infection and currently used filaments for 3D printing can't inhibit transmission of virus [1]. Graphene-family materials are capable of reinforcing mechanical, optical and thermal properties of 3D printed constructs. In particular, graphene can adsorb near-infrared light with high efficiency. Here we demonstrate that the addition of graphene nanoplatelets to PLA filaments (PLA-G) allows the creation of 3D-printed devices that can be sterilized by near-infrared light exposure at power density analog to sunlight. This method has been used to kill SARS-CoV-2 viral particles on the surface of 3D printed PLA-G by 3 min of exposure. 3D-printed PLA-G is highly biocompatible and can represent the ideal material for the production of sterilizable personal protective equipment and daily life objects intended for multiple users.

Original language	English
Pages (from-to)	34-41
Number of pages	8
Journal	Carbon
DOIs	https://doi.org/10.1016/j.carbon.2022.03.036
Publication status	Published - 2022

Keywords

graphene, Sars-CoV2

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10.1016/j.carbon.2022.03.036

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De Maio, F., Rosa, E., Perini, G., Augello, A., Niccolini, B., Ciaiola, F., Santarelli, G., Sciandra, F., Bozzi, M., Sanguinetti, M., Sali, M., De Spirito, M., Delogu, G., Palmieri, V., & Papi, M. (2022). 3D-printed graphene polylactic acid devices resistant to SARS-CoV-2: Sunlight-mediated sterilization of additive manufactured objects. Carbon, 34-41. https://doi.org/10.1016/j.carbon.2022.03.036

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title = "3D-printed graphene polylactic acid devices resistant to SARS-CoV-2: Sunlight-mediated sterilization of additive manufactured objects",

abstract = "Additive manufacturing has played a crucial role in the COVID-19 global emergency allowing for rapid production of medical devices, indispensable tools for hospitals, or personal protection equipment. However, medical devices, especially in nosocomial environments, represent high touch surfaces prone to viral infection and currently used filaments for 3D printing can't inhibit transmission of virus [1]. Graphene-family materials are capable of reinforcing mechanical, optical and thermal properties of 3D printed constructs. In particular, graphene can adsorb near-infrared light with high efficiency. Here we demonstrate that the addition of graphene nanoplatelets to PLA filaments (PLA-G) allows the creation of 3D-printed devices that can be sterilized by near-infrared light exposure at power density analog to sunlight. This method has been used to kill SARS-CoV-2 viral particles on the surface of 3D printed PLA-G by 3 min of exposure. 3D-printed PLA-G is highly biocompatible and can represent the ideal material for the production of sterilizable personal protective equipment and daily life objects intended for multiple users.",

keywords = "graphene, Sars-CoV2, graphene, Sars-CoV2",

author = "{De Maio}, Flavio and Enrico Rosa and Giordano Perini and Alberto Augello and Benedetta Niccolini and Francesca Ciaiola and Giulia Santarelli and Francesca Sciandra and Manuela Bozzi and Maurizio Sanguinetti and Michela Sali and {De Spirito}, Marco and Giovanni Delogu and Valentina Palmieri and Massimiliano Papi",

year = "2022",

doi = "10.1016/j.carbon.2022.03.036",

language = "English",

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journal = "Carbon",

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De Maio, F, Rosa, E, Perini, G, Augello, A, Niccolini, B, Ciaiola, F, Santarelli, G, Sciandra, F, Bozzi, M , Sanguinetti, M , Sali, M , De Spirito, M , Delogu, G, Palmieri, V & Papi, M 2022, '3D-printed graphene polylactic acid devices resistant to SARS-CoV-2: Sunlight-mediated sterilization of additive manufactured objects', Carbon, pp. 34-41. https://doi.org/10.1016/j.carbon.2022.03.036

TY - JOUR

T1 - 3D-printed graphene polylactic acid devices resistant to SARS-CoV-2: Sunlight-mediated sterilization of additive manufactured objects

AU - De Maio, Flavio

AU - Rosa, Enrico

AU - Perini, Giordano

AU - Augello, Alberto

AU - Niccolini, Benedetta

AU - Ciaiola, Francesca

AU - Santarelli, Giulia

AU - Sciandra, Francesca

AU - Bozzi, Manuela

AU - Sanguinetti, Maurizio

AU - Sali, Michela

AU - De Spirito, Marco

AU - Delogu, Giovanni

AU - Palmieri, Valentina

AU - Papi, Massimiliano

PY - 2022

Y1 - 2022

N2 - Additive manufacturing has played a crucial role in the COVID-19 global emergency allowing for rapid production of medical devices, indispensable tools for hospitals, or personal protection equipment. However, medical devices, especially in nosocomial environments, represent high touch surfaces prone to viral infection and currently used filaments for 3D printing can't inhibit transmission of virus [1]. Graphene-family materials are capable of reinforcing mechanical, optical and thermal properties of 3D printed constructs. In particular, graphene can adsorb near-infrared light with high efficiency. Here we demonstrate that the addition of graphene nanoplatelets to PLA filaments (PLA-G) allows the creation of 3D-printed devices that can be sterilized by near-infrared light exposure at power density analog to sunlight. This method has been used to kill SARS-CoV-2 viral particles on the surface of 3D printed PLA-G by 3 min of exposure. 3D-printed PLA-G is highly biocompatible and can represent the ideal material for the production of sterilizable personal protective equipment and daily life objects intended for multiple users.

AB - Additive manufacturing has played a crucial role in the COVID-19 global emergency allowing for rapid production of medical devices, indispensable tools for hospitals, or personal protection equipment. However, medical devices, especially in nosocomial environments, represent high touch surfaces prone to viral infection and currently used filaments for 3D printing can't inhibit transmission of virus [1]. Graphene-family materials are capable of reinforcing mechanical, optical and thermal properties of 3D printed constructs. In particular, graphene can adsorb near-infrared light with high efficiency. Here we demonstrate that the addition of graphene nanoplatelets to PLA filaments (PLA-G) allows the creation of 3D-printed devices that can be sterilized by near-infrared light exposure at power density analog to sunlight. This method has been used to kill SARS-CoV-2 viral particles on the surface of 3D printed PLA-G by 3 min of exposure. 3D-printed PLA-G is highly biocompatible and can represent the ideal material for the production of sterilizable personal protective equipment and daily life objects intended for multiple users.

KW - graphene, Sars-CoV2

UR - http://hdl.handle.net/10807/198905

U2 - 10.1016/j.carbon.2022.03.036

DO - 10.1016/j.carbon.2022.03.036

M3 - Article

SN - 0008-6223

SP - 34

EP - 41

JO - Carbon

JF - Carbon

ER -

3D-printed graphene polylactic acid devices resistant to SARS-CoV-2: Sunlight-mediated sterilization of additive manufactured objects

Abstract

Keywords

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