Breathable Bactericide Piezocatalyst Integrating Anode–Cathode Heterojunction Capacitance on a Piezoelectric–Conductive Film

Abstract

Piezocatalysis has received great attention in recent years. However, despite the great promise therein, high-performance piezocatalysts are still rare and the principles in designing high-performance piezocatalysts remain lacking. We demonstrate here a novel piezocatalyst design by integrating the oxidizing and reducing reaction sites heterojunction on a piezoelectric and conductive matrix. The catalytic composite generates reactive oxidizing species with unprecedented high capabilities. The •O 2 − yield is over 400% that of previously reported catalysts and for the first time realized effective piezocatalytic bactericidal effects over 99%. A range of structural features, including proper energy band alignments, high capacitance, patterned high conductivity, voltage-regulated wettability, and effective piezoelectrical capability, are believed to synergize for their high piezocatalytic performance. This study has extended the piezocatalysts with new design principles, effective descriptors of merits, new applications, and effective performance capabilities.

Boosting Checkpoint Immunotherapy with Biomimetic Nanodrug Delivery Systems

“…growth, and eliminate metastasis. [186] In contrast to PTT, PDT is intrinsically more selective through constructing BNDS to flexibly regulate the in vivo aggregation and targeting of PSs. In addition, unlike PTT in the thermal mode, the peripheral collagenous structures and tissues can be largely protected from damage by PDT.…”

Ultraflexible Temperature‐Strain Dual‐Sensor Based on Chalcogenide Glass‐Polymer Film for Human‐Machine Interaction

“…[25,26] Inspired by their superior properties, the thermal-sensing performance of Cu-Ge-Te, Cu-As-Se-Te, Ag-Ga 2 Te 3 -SnTe, and Ge-Se-Te systems has been investigated. [27][28][29][30] However, current research on ChGs is restricted by their bulk form, which makes them cumbersome and unsuitable for wearable devices. Despite the recent progresses in flexible fiber-based ChG sensors, [31] the poor anticrystallization ability of these ChGs leads to uncontrolled crystallization during fiber drawing, resulting in decreased Seebeck coefficient.…”

Molecular engineering of donor–acceptor sp2-carbon-linked covalent organic frameworks for enhancing photocatalytic hydrogen production

“…The difference in electron affinity between the D and A leads to the formation of a strong dipole moment and a builtin electric field, which promotes exciton dissociation and charge transfer. [31][32][33][34][35] Additionally, D and A structural engineering has been established as an effective method for modulating band gaps to optimize the photocatalytic activity from theoretical studies. [34][35][36] In D-A type polymers, the lowest unoccupied molecular orbital (LUMO) energy level and the highest occupied molecular orbital (HOMO) energy level are generally determined by the acceptor unit and the donor unit, respectively.…”