Green reduction and uniform assembly of silver nanoparticles on polydopamine functionalized sulfur-doped graphitic carbon nitride nanosheets for highly sensitive H2O2 detection via nonenzymatic approach

Hsu, Li-Fan; Natarajan, Karthic; Karuppiah, Chelladurai; Yang, Chun-Chen

doi:10.1016/j.colsurfa.2023.132383

Cited by 2 publications

(2 citation statements)

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“…This allows PDA to strongly regulate the loading state of Ag on the fiber, effectively preventing aggregation. Figure d illustrates the schematic diagram of the network structure properties of Ag in aerogels. , …”

Section: Resultsmentioning

confidence: 99%

“…Figure 2d illustrates the schematic diagram of the network structure properties of Ag in aerogels. 41,42 Figure 2e,f shows that after in situ reduction of silver ions, a new Ag 3d binding energy peak appears in the Ag/PDA/CNF spectrum. Analyzing the Ag 3d peaks in Figure 2g, it is observed that Ag 3d distributes between Ag 3d 5/2 and Ag 3d 3/2 , with binding energies of 367.4 and 373.6 eV, respectively.…”

Section: ■ Introductionmentioning

confidence: 99%

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Wood Fiber-Based Triboelectric Material with High Filtration Efficiency and Antibacterial Properties and Its Respiratory Monitoring in Mask

Sun,

Yuan,

Zhu

et al. 2024

ACS Omega

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Self-powered wearable electronic products have rapidly advanced in the fields of sensing and health monitoring, presenting greater challenges for triboelectric materials. The limited surface polarity and structural defects in wood fibers restrict their potential as substitutes for petroleum-based materials. This study used bagasse fiber as the raw material and explored various methods, including functionalizing cellulose nanofibrils (CNFs) with polydopamine (PDA), in situ embedding of silver particles, filtration, and freezedrying. These methods aimed to enhance the triboelectric output, antibacterial properties, and filtration properties of lignocellulosic materials. The Ag/PDA/CNF-based triboelectric nanogenerator (TENG) demonstrated an open-circuit voltage of 211 V and a short-circuit current of 18.1 μA. An aerogel prepared by freeze-drying the Ag/PDA/CNF material, combined with a polyvinylidene fluoride nanofiber structure fabricated by electrospinning, constitutes the TENG unit. A self-powered respiratory detection mask was created using this combination, achieving a filtration efficiency of 94.23% for 0.3 μm particles and an antibacterial rate exceeding 99%. In addition, it effectively responded to respiratory frequency signals of slow breathing, normal breathing, and shortness of breath, with the output electrical signal correlating with the respiratory frequency. This study considerably contributes to advancing wood fiber-based triboelectric materials as alternatives to petroleumderived materials in self-powered wearable electronic products for medical applications.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%