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The noninvasive continuous analysis of human sweat is of great significance for improved healthcare diagnostics and treatment in the future, for which a wearable potentiometry-based ion-selective electrode (ISE) has attracted increasing attention, particularly involving ion detection. Note that traditional solid-state ISE electrodes are rigid ion-to-electron transducers that are not conformal to soft human skin and cannot function under stretched states. Here, we demonstrated that vertically aligned mushroom-like gold nanowires (v-AuNW) could serve as stretchable and wearable ion-to-electron transducers for multiplexed, in situ potentiometric analysis of pH, Na, and K in sweat. By modifying v-AuNW electrodes with polyaniline, Na ionophore X, and a valinomycin-based selective membrane, we could specifically detect pH, Na, and K, respectively, with high selectivity, reproducibility, and stability. Importantly, the electrochemical performance could be maintained even under 30% strain and during stretch-release cycles without the need of extrinsic structural design. Furthermore, our stretchable v-AuNW ISEs could be seamlessly integrated with a flexible printed circuit board, enabling wireless on-body detection of pH, Na, and K with fast response and negligible cross-talk, indicating considerable promise for noninvasive wearable sweat analysis.
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http://dx.doi.org/10.1021/acs.analchem.0c00274 | DOI Listing |
Adv Sci (Weinh)
December 2024
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu, 225002, P. R. China.
The rational design of multicomponent heterostructure is an effective strategy to enhance the catalytic activity of electrocatalysts for water and seawater electrolysis in alkaline conditions. Herein, MOF-derived nitrogen-doped carbon/nickel-cobalt sulfides coupled vertically aligned Rhenium disulfide (ReS) on carbon cloth (NC-CoNiS@ReS/CC) are constructed via hydrothermal and activation approaches. Experimental and theoretical analysis demonstrates that the strong interactions between multiple interfaces promote electron redistribution and facilitate water dissociation, thereby optimizing *H adsorption energy for the hydrogen evolution reaction (HER).
View Article and Find Full Text PDFAdv Sci (Weinh)
December 2024
Department of Industrial and Materials Science, Chalmers University of Technology, Göteborg, 41296, Sweden.
Thermal conductivity enhancement in polymers is vital for advanced applications. This study introduces a novel method to align hexagonal boron nitride (hBN) nanosheets within polydimethylsiloxane (PDMS) matrices using a Halbach array to create a highly uniform magnetic field. This technique achieves significant improvements in thermal conductivity by effectively aligning hBN nanosheets.
View Article and Find Full Text PDFJ Shoulder Elbow Surg
December 2024
Department of Orthopaedics, Kurashiki Central Hospital, Kurashiki, Okayama, Japan.
Background: Reverse total shoulder arthroplasty (RTSA) is considered a promising surgical procedure, and several studies have reported its advantages in improving shoulder elevation. However, patients undergoing RTSA may still experience challenges related to rotational movements. While external rotation may be improved with lateralization, internal rotation may occasionally deteriorate after RTSA.
View Article and Find Full Text PDFACS Omega
December 2024
2D Materials and Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur 603 203, Tamil Nadu, India.
The demand for compact energy storage devices necessitates the development of high-performance anode materials directly integrated with current collectors, minimizing or eliminating the need for binders or additives. With its layered structure and high theoretical capacity, molybdenum disulfide (MoS) is regarded as a promising anode material for lithium-ion batteries (LIBs). Here, we report chemical vapor deposition (CVD) growth of self-integrated, vertically aligned MoS nanosheets with embedded molybdenum dioxide (MoO) directly on a molybdenum foil and explore its potential as an anode material for LIBs.
View Article and Find Full Text PDFClin Neurol Neurosurg
December 2024
Case Western Reserve University School of Medicine, Cleveland, OH, United States; Department of Neurological Surgery, University Hospitals Cleveland Medical Center, Cleveland, OH, United States. Electronic address:
Background: Degenerative cervical myelopathy is one of the most common causes of spinal cord dysfunction. Cervical laminoplasty is an excellent surgical procedure that address the underlying pathology along with motion preservation with various advantages over other surgical options. While the advantages are intuitive and are being proven in multiple recent studies, concerns regarding failure still remains precluding wider utilization despite evidence to the contrary.
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