J Am Chem Soc
School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China.
Published: December 2024
Piezoionic materials have attracted considerable attention for their ability to generate iontronic signals or power in response to stress stimuli. However, the limited intrinsic transport distinction between cations and anions within most ionic materials results in weakened iontronic power conversion efficiencies under stress fields. Here, we report a piezoheterogated biphasic gel for ultrahigh iontronic generation, characterized by high-internal microphase heterointerfaces that facilitate the distinct transport of various ion species. Due to the ion confinement effect of cell-like multicompartments, a stable intercellular ion gradient within biphasic gel systems can be established in situ, constructing the chemical potential to further enhance ionic transmission efficiency and obtain a high-density net ion flux in the piezoionic process. Consequently, as a reliable piezo cell, a record maximum power of 150 W/m over 24 h can be realized. Meanwhile, we develop piezoionic devices that can interface with paralyzed vagus nerves and successfully regulate the blood pressure of rodents through their neuromodulation. By matching the ion species with heterointerface gating effects to regulate the ionic transmission efficiency, the piezo signal neuromodulation process can be further governed. We anticipate that the bioinspired heterointerface engineering strategy can provide new insights into designing high-performance piezoionic systems for promising abiotic-biotic applications.
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http://dx.doi.org/10.1021/jacs.4c13305 | DOI Listing |
Molecules
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Department of Chemistry, Faculty of Natural Sciences, Kazakh National Women's Teacher Training University, Gogol 114/1, Almaty 050000, Kazakhstan.
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School of Chemistry and Environment Science, Shaanxi University of Technology, Hanzhong 723001, China.
As a small-molecule gelator used as a stabilizer in gel emulsions, it has numerous advantages, such as low dosage, independence from phase ratios, and ease of control. In this study, a cholesterol derivative (CSA) was designed and synthesized to be used as a stabilizer for gel emulsions. Gelation experiments demonstrated that this small molecule could gelate various organic solvents, including linear alkanes, toluene, isoamyl alcohol, and acetone.
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Department of Pharmaceutical Technology, Faculty of Pharmacy, "Grigore T. Popa" University of Medicine and Pharmacy Iasi, 700115 Iasi, Romania.
: This study explored the potential of MCM-48 mesoporous silica matrices as a drug delivery system for metformin hydrochloride, aimed at improving the therapeutic management of type 2 diabetes mellitus. The objectives included the synthesis and characterization of MCM-48, assessment of its drug loading capacity, analysis of drug release profiles under simulated physiological conditions, and the development of a multifractal dynamics-based theoretical framework to model and interpret the release kinetics. : MCM-48 was synthesized using a sol-gel method and characterized by SEM-EDX, TEM, and nitrogen adsorption techniques.
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December 2024
Hyphenated Mass Spectrometry Laboratory, Faculty of Science, University of Technology Sydney, PO Box 123, Broadway, 2007 NSW, Australia; School of Life Sciences, Faculty of Science, University of Technology Sydney, PO Box 123, Broadway, 2007 NSW, Australia.
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View Article and Find Full Text PDFJ Am Chem Soc
December 2024
School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P.R. China.
Piezoionic materials have attracted considerable attention for their ability to generate iontronic signals or power in response to stress stimuli. However, the limited intrinsic transport distinction between cations and anions within most ionic materials results in weakened iontronic power conversion efficiencies under stress fields. Here, we report a piezoheterogated biphasic gel for ultrahigh iontronic generation, characterized by high-internal microphase heterointerfaces that facilitate the distinct transport of various ion species.
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