Results 331 to 340 of about 4,573,752 (402)

Piezoresistive Effect: A New Concept for Hearing Aids

open access: yesAdvanced Science, EarlyView.
An MXene/PVA sound sensor utilizing piezoresistive effects has been proposed with a detection limit of 60 dB and a frequency response of 20–4000 Hz, which is comparable to the performance of commercial hearing aids. By combining the sensor with machine learning, the accuracy rate of voiceprint recognition of wildlife conservation can reach up to 99 ...
Mengyao Gao   +8 more
wiley   +1 more source

Enhanced Broadband Acoustic Absorption in Commercial Foam via Multiwall Carbon Nanotube‐Induced Pore Reconstruction

open access: yesAdvanced Science, EarlyView.
A simple to multiscale structure transition happens when a commercial porous foam is filled with multiwall carbon nanotubes with high aspect ratio. For an acoustic absorber with a porous material, the loading of multiwall carbon nanotubes can significantly improve its specific surface area while preserving its thickness and high porosity, thus enables ...
Jinkui Xiong   +11 more
wiley   +1 more source

Robust Stick‐and‐Play Photothermal Icephobic Film with Bioinspired Insulation Cells

open access: yesAdvanced Science, EarlyView.
Inspired by the seed‐and‐framework structure of lotus seedpods, a photothermal anti‐icing film is developed by embedding thermal‐management hydrophobic microcells (THMC) into PDMS. Combining photothermal/insulating synergy and hydrophobic microcells, it achieves heat accumulation, surface adhesion, and robust anti‐icing under weak light, enabling ...
Xiaohu Xia   +5 more
wiley   +1 more source

Superelastic and Ultra‐Soft MXene/CNF Aerogel@PDMS‐Based Dual‐Modal Pressure Sensor for Complex Stimuli Monitoring

open access: yesAdvanced Science, EarlyView.
A triboelectric‐piezoresistive dual‐modal pressure sensor based on superelastic and ultrasoft MXene/cellulose nanofiber (CNF) aerogel@PDMS is fabricated. The sensor exhibits high sensitivity and stable sensing performance via a dual mechanism. Through the effective combination of these two mechanisms, comprehensive monitoring of complex stimuli can be ...
Ao Wang   +9 more
wiley   +1 more source

A Soft‐Soft Contact Triboelectric Nanogenerator with a Ternary Four‐Phase Structure for Self‐Powered High‐Efficiency Dust Removal on Mars

open access: yesAdvanced Science, EarlyView.
The frequent dust storms and charged dust particles on Mars pose significant challenges to the power generation efficiency and service life of solar panels during exploration missions. This paper proposes a novel wind‐driven ternary four‐phase soft‐soft contact triboelectric nanogenerator (FPS‐TENG) for dust removal.
Fei Yang   +6 more
wiley   +1 more source

Microenvironmental Modulation for Therapeutic Efficacy of Extracellular Vesicles

open access: yesAdvanced Science, EarlyView.
Recent studies highlighted the heterogeneity of EVs and the influence of microenvironmental signals on their therapeutic efficacy. This review offers a comprehensive overview of strategies and mechanisms to optimize the therapeutic efficacy of EVs through physical, biochemical, and mechanical modulation.
Bilu Xiang   +4 more
wiley   +1 more source

Bionic Visual‐Auditory Perceptual System Based on Ionotronic Neuromorphic Transistor for Information Encryption and Decryption with Sound Recognition Functions

open access: yesAdvanced Electronic Materials, EarlyView.
A bionic visual‐auditory perceptual system is proposed. The system exhibits remarkable multi‐modal sensory abilities to sound and light, enabling diverse functions including encrypted sound information transmission and information decoding. The perceptual system can also perform sound recognition, resulting in the implementation of a sound lock ...
Wei Sheng Wang   +4 more
wiley   +1 more source

Moisture Harvesting by the Structure Regulation of Hygroscopic Hydrogel for Energy and Water Sustainability

open access: yesAdvanced Electronic Materials, EarlyView.
Hygroscopic hydrogels are capable of utilizing the moisture from air, which can transfer the gaseous water to liquid by a surface phase transition. Taking advantage of this water, sustainable water production, thermal management, and electricity generation can be realized.
Yujie Du   +5 more
wiley   +1 more source

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