Electrothermal sterilization and self-powered real-time respiratory monitoring of reusable mask based on Ag micro-mesh films

Liu, Wenquan; Sun, Yu; Cui, Anni; Xia, Yifan; Yan, Qiuzhu; Song, Yongxin; Wang, Liangliang; Shan, Guiye; Wang, Xin

doi:10.1016/j.nanoen.2022.107987

Cited by 26 publications

(16 citation statements)

References 53 publications

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“…5−7 Although most wearable electronics were in direct contact with skin, 8 as wear time increases, there is an increasing amount of bacteria and microorganisms between electronic devices and the skin, which becomes a huge potential hazard to healthy living. 9 The use of wearable electronic devices with antibacterial 10 or bactericidal functions 11,12 is attracting increasing attention. There has been a great deal of research on antibacterial functions.…”

Section: Introductionmentioning

confidence: 99%

“…Integrated circuits are becoming increasingly sophisticated with the advent of big data information. − Humans are entering the wearable electronics era, and a variety of small wearable electronics are ushering in a near “blowout” development. − Although most wearable electronics were in direct contact with skin, as wear time increases, there is an increasing amount of bacteria and microorganisms between electronic devices and the skin, which becomes a huge potential hazard to healthy living . The use of wearable electronic devices with antibacterial or bactericidal functions , is attracting increasing attention. There has been a great deal of research on antibacterial functions.…”

Section: Introductionmentioning

confidence: 99%

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Self-Powered Sterilization System for Wearable Devices Based on Biocompatible Materials and Triboelectric Nanogenerator

Lei

et al. 2023

ACS Appl. Electron. Mater.

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Wearable electronics with multifunction and convenience are entering a period of rapid development. However, the longer people wear electronic devices, the easier it is for bacteria to infect the skin. Sterilization of wearables has received little research, partly because mature high-voltage sterilization systems require energy sources, which will greatly restrict the large-scale applications of wearable devices. Therefore, a self-powered sterilization system with high comfort and safety is strongly appealing. To solve the above problem, we design a wearable, self-powered sterilization system with a biocompatible nano/ microporous fiber triboelectric nanogenerator (NMF-TENG) as the energy source and an interdigital electrode for better bactericidal performance. Ag nanowires (AgNWs) and carbon nanotube (CNT) are added to the indium tin oxide (ITO)-based interdigital electrode to improve the conductivity, bending performance, and local electric field strength. Due to the tip effect, the local electric field of the electrode can be improved as high as 1 MV m −1 , which can kill the bacteria. The system can achieve a long-term sterilization rate of up to 90%, which has great application potential in the sterilization direction of wearable electronic devices.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Self-Powered Sterilization System for Wearable Devices Based on Biocompatible Materials and Triboelectric Nanogenerator

Lei

et al. 2023

ACS Appl. Electron. Mater.

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“…5 The disinfection processes have been applied for the contaminated surgical face masks to overcome their reusability issue; however, this has resulted in a decline in their filtering performance because of the damaged structure. 6 The filtering layers of the face mask have been also incorporated with metals/inorganic materials including copper, silver, zinc, and titanium dioxide to attain antimicrobial and antiviral properties. However, there has been a growing concern about their application because of their potential risks to the human health and ecosystems.…”

Section: ■ Introductionmentioning

confidence: 99%

“…57,58 The overlap between the spectra of these two components can be explained by the similarities between their molecular structures. γCD is constructed of α-(1,4) linked glucopyranose sub-units (Figure 1A), which are similar to the maltotriose (three glucose units linked by α-(1,4) glycosidic bonds) units that connected themselves by α- (1,6) glycosidic bonds and make up the pullulan polymer (Figure 1A). 57 This similarity resulted in analogous absorption bands at the parallel region of the spectrum for γCD and pullulan (Figure S2).…”

Section: ■ Introductionmentioning

confidence: 99%

“…Additionally, discarded surgical face masks thereafter usage has caused an increased risk of secondary virus transmission and another loading to the environment with a requirement of safe disposal . The disinfection processes have been applied for the contaminated surgical face masks to overcome their reusability issue; however, this has resulted in a decline in their filtering performance because of the damaged structure . The filtering layers of the face mask have been also incorporated with metals/inorganic materials including copper, silver, zinc, and titanium dioxide to attain antimicrobial and antiviral properties.…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial Nanofibrous Mat of Pullulan/Cinnamaldehyde-Cyclodextrin Inclusion Complexes as a Potential Cloth Mask Layer with Long-Term Storage Stability and Facile Disposal Property

Çelebioğlu

Lawson

Hsiung

et al. 2023

ACS Sustainable Chem. Eng.

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There is an ongoing rise in global plastic waste because of the mass production and vast consumption of surgical face masks during the COVID-19 outbreak. This problem leads to a crucial need for alternative face coverings which can eliminate environmental concerns. Using cloth masks can be a sustainable solution if combined with a functional filtering layer. In this study, electrospun nanofibrous mats (NM) were generated using a renewable biopolymer; pullulan by the incorporation of cyclodextrin inclusion complexes (γCD-IC) of naturally occurring essential oil compound; trans-cinnamaldehyde (CAH). Pullulan/CAH-γCD-IC NM was readily inserted into a cloth mask due to its free-standing and foldable features and achieved higher loading efficiency (∼62%) than pullulan/CAH NM (∼10%). Here, pullulan/CAH-γCD-IC NM showed substantial and better antibacterial activity, long-term storage stability, and thermal stability due to inclusion complexation. Pullulan/ CAH-γCD-IC NM was also obtained with promising properties of pore size (∼390 nm) and water vapor permeability (∼890 g/m 2 /day). The water solubility of pullulan/CAH-γCD-IC NM ensured fast and easy disposal without potential environmental loading, thanks to the biocompatibility of components. Briefly, pullulan/CAH-γCD-IC NM can create an attractive alternative as a functional layer that can be combined with the cloth mask.

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Recent Progress in Application‐Oriented Self‐Powered Microelectronics

Qi,

Kong,

Wang

et al. 2023

Advanced Energy Materials

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With the rapid development of the Internet of Things (IoTs), numerous distributed wide‐area low‐power electronic devices have been utilized in various fields, such as wireless monitoring sensors and wearable electronics. Due to the dispersion and mobility of microelectronic devices, their energy supply faces serious challenges. The inconvenience and non‐environmental friendliness of using traditional centralized low entropy energy and chemical batteries to power distributed microelectronic devices are becoming increasingly prominent. Environmental energy harvesting technology with high entropy characteristics is considered an effective solution for low‐power electronic devices. This paper comprehensively reviews the recent progress in microelectronic technologies based on energy harvesting and signal sensing. First, state‐of‐the‐art micro‐power electronic devices in humans, animals, and the environment are introduced. Secondly, the available micro‐energy sources in the environmentare elaborated and summarized. Then, the principles and characteristics of ambient microenergy harvesting technologies based on different mechanisms are classified, summarized, and analyzed. In addition, this work comprehensively summarizes the applications of self‐powered micro‐electronics technology in 11 different fields, including human, animal, and environment. Finally, research challenges, technical difficulties, and research gaps in self‐powered microelectronics based on micro‐energy harvesting technology are discussed and summarized.

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Electrothermal sterilization and self-powered real-time respiratory monitoring of reusable mask based on Ag micro-mesh films

Cited by 26 publications

References 53 publications

Self-Powered Sterilization System for Wearable Devices Based on Biocompatible Materials and Triboelectric Nanogenerator

Self-Powered Sterilization System for Wearable Devices Based on Biocompatible Materials and Triboelectric Nanogenerator

Antibacterial Nanofibrous Mat of Pullulan/Cinnamaldehyde-Cyclodextrin Inclusion Complexes as a Potential Cloth Mask Layer with Long-Term Storage Stability and Facile Disposal Property

Recent Progress in Application‐Oriented Self‐Powered Microelectronics

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