A research team from Peking University has successfully developed a vanadium oxide (VO₂)-based “locally active memristive oscillator” that operates at the edge of chaos. Through simple signal injection, the device exhibits diverse nonlinear dynamic behaviors such as frequency division, stochastic oscillation, and frequency locking. Remarkably, a single device demonstrates powerful frequency-domain feature extraction capability in speech recognition tasks, achieving performance comparable to a two-layer convolutional neural network. This breakthrough opens a new pathway for future energy-efficient and intelligent neuromorphic computing chips.

A recent study reveals how plants activate a reactive oxygen species (ROS)-driven signaling pathway to adapt to low nitrate conditions. Researchers identified RBOHC as the primary ROS producer, which in turn activates WRKY42/WRKY58 transcription factors to upregulate high-affinity nitrate transporters (NRT2.1, NRT2.2, NRT2.4), enhancing nitrate uptake. This newly discovered ROS-WRKY-NRT2 pathway provides insights into plant nitrogen sensing and could inform strategies to improve nitrogen use efficiency in crops.

A group lead by Prof. Yang Liu from Huazhong University of Science and Technology has created a new type of "upgraded" polymer that’s far better at converting movement into electrical signals through piezoelectric effect. By using a straightforward solution-casting process, they create uniform A4 paper size films suited for industrial production, suggesting the material could power next-gen flexible wearable electronics for smarter daily use and healthcare.A group lead by Prof. Yang Liu from Huazhong University of Science and Technology has created a new type of "upgraded" polymer that’s far better at converting movement into electrical signals through piezoelectric effect. By using a straightforward solution-casting process, they create uniform A4 paper size films suited for industrial production, suggesting the material could power next-gen flexible wearable electronics for smarter daily use and healthcare.

 In this system, Fc could convert overexpressed H₂O₂ to produce ·OH. Importantly, Cur could form dynamic boronate ester bonds with BA, and be encapsulated in SPSAs-1 through responsive chemical bond to form SPSAs-2. The acidic microenvironment and excessive H₂O₂ within tumor cells cause the dissociation of boronate ester bonds and β-CD/Fc complexes, releasing Cur. As a result, the GSH level could be reduced through the combination of the BA-induced GSH consumption and Cur-induced inhibition of TrxR activation, further enhancing CDT efficacy.

Structural alignment in fibrous tissues like myocardium and tendons is a key biomarker of physiological integrity and pathological remodeling. However, conventional imaging relies on staining. Researchers in Korea developed mid-infrared dichroism-sensitive photoacoustic microscopy, a label-free imaging modality that integrates molecular specificity with polarization sensitivity. It quantitatively maps protein content and extracellular matrix alignment in engineered heart tissues, enabling objective assessment of structural integrity and fibrosis without staining. This technique advances histopathology and regenerative medicine.