News from China
Updates every hour. Last Updated: 25-Oct-2026 05:16 ET (25-Oct-2026 09:16 GMT/UTC)
Self-powered ultrabroadband BP/Nb2SiTe4 heterostructure photodetector delivers record polarization sensitivity for infrared encryption and polarimetric imaging
Tsinghua University PressPeer-Reviewed Publication
Polarization-sensitive photodetectors are critical for advanced optical imaging, secure near-infrared communication and optical encryption, yet most existing two-dimensional devices suffer from narrow spectral coverage, weak anisotropic response and reliance on external power. A collaborative Chinese research team has engineered a vertical van der Waals heterostructure by stacking black phosphorus (BP) with low-symmetry Nb2SiTe4, constructing a self-driven photodetector covering an ultra-broad spectrum from ultraviolet (360 nm) to short-wave infrared (2200 nm). The atomically sharp heterointerfaces create strong built-in electric fields for fast charge separation, while intentional symmetry breaking drastically amplifies optical anisotropy, yielding a maximum dichroic ratio of 10.4 under 2200 nm illumination. Proof-of-concept demonstrations validate the device’s capacity for single-pixel polarization-resolved imaging and dual-wavelength polarization encryption and decryption, paving a practical route toward low-power, multifunctional polarization optoelectronic hardware.
- Journal
- Nano Research
Cathode material recycling: a review of current methods and a proposal for the future
SciOpenPeer-Reviewed Publication
This comprehensive review establishes the existing methods and effectiveness of lithium ion battery recycling while putting forth a proposal for the future of lithium ion battery recycling. This proposed mechanism will include artificial intelligence powered diagnoses of the cathode materials to determine the failure features of the cathode and the optimal way to recycle the materials within, as well as the facility to sort the recyclable materials within one facility to establish a closed-loop system.
- Journal
- Environmental chemistry and safety
Indirect-bandgap semiconductor guides light emission in a new nanowire LED design
Tsinghua University PressPeer-Reviewed Publication
Researchers at Lund University have demonstrated a new strategy for controlling where light is generated in semiconductor nanowire LEDs. Instead of relying on a material that emits light throughout the device, they used an indirect-bandgap core semiconductor nanowire as a pathway to transport electrical charge into nanoscale branches specifically designed for light emission. The work introduces separating charge transport from light generation, opening opportunities for more efficient nanowire-based optoelectronic devices.
- Journal
- Nano Research
Less UV light may mean less carbon storage in Antarctic tundra
Advances in Atmospheric Sciences & Partner JournalsPeer-Reviewed Publication
- Journal
- Atmospheric and Oceanic Science Letters
Black phosphorus/bismuth heterojunction enables freeze-tolerant micro-supercapacitors and integrated sensing
Tsinghua University PressPeer-Reviewed Publication
Black phosphorus-based micro-supercapacitors (MSCs) are a highly promising micro-scale energy storage technology beyond traditional lithium-ion batteries. They offer significant advantages in flexible wearable electronics, yet suffer from intrinsic instability and sluggish electron kinetics. The two-dimensional phosphorene/bismuthene (BP/Bi) heterojunction, featuring a highly conductive network and anti-stacking architecture constructed via interfacial P-O-Bi covalent coupling, provides a new solution for the development of high-performance, low-temperature-tolerant MSCs and integrated sensing systems.
- Journal
- Nano Research
Flexible electrodes map nanoplastic-induced oxidative stress in human cortical organoids
Tsinghua University PressPeer-Reviewed Publication
Nanoplastics can cross biological barriers and may pose risks to the central nervous system, but how deeply they penetrate brain-like tissues and where they induce oxidative stress have remained unclear. Researchers from Wuhan University and Nanjing Medical University developed a flexible electrochemical sensor based on platinum nanoparticle-modified carbon nanotube fiber to monitor hydrogen peroxide, a key oxidative stress marker, within human cortical organoids. The sensor revealed that nanoplastic-induced oxidative stress increased over time but remained mainly localized within the approximately 100-μm-deep region where most particles accumulated.
- Journal
- Nano Research
Pediatric investigation study highlights gaps between autism screening and timely support
Pediatric InvestigationPeer-Reviewed Publication
A Pediatric Investigation study finds that early autism identification can fail after screening, with gaps in referral, diagnosis, service capacity, and support. Reviewing evidence across children aged 0–5 years, researchers show that screening can accelerate diagnosis for some children but cannot replace repeated surveillance or clinical concern. The findings support faster, more coordinated and equitable pathways that help families reach assessment and needs-based support sooner, even before diagnostic certainty is complete.
- Journal
- Pediatric Investigation
Higher precision in medical image segmentation by combining global and local information
Chinese Association of AutomationPeer-Reviewed Publication
Segmentation tools help doctors identify and delineate tumors, lesions, and other abnormalities in medical images. However, noise, redundant information, and blurred boundaries can make automated segmentation difficult. Researchers from Tongji University in China and the University of Toyama in Japan developed V-UNet, a new model designed to capture global context and fine local details. Tests on four public datasets demonstrated competitive segmentation performance with relatively low computational requirements.
- Journal
- IEEE/CAA Journal of Automatica Sinica
- Funder
- Japan Society for the Promotion of Science, Japan Science and Technology Agency
Ancient Dujiangyan water wisdom inspires AI microfluidic chip to spot hidden sub-resistant bacteria
Science China PressPeer-Reviewed Publication
Traditional MIC-based antibiotic susceptibility testing often misses sub-resistant bacteria, including persistent, tolerant, and heteroresistant populations, which may contribute to treatment failure and resistance evolution. Researchers at Huazhong University of Science and Technology have developed DP-AST, a deep learning-based microfluidic rapid phenotypic AST platform inspired by the Dujiangyan irrigation system. DP-AST measures MIC, bacterial growth activity, and concentration-effect curves to identify hidden sub-resistant bacteria. The study also identified gadE as a key regulator of amikacin sub-resistance in E. coli, offering new insights for resistance mechanism studies and future clinical diagnostics.Traditional MIC-based antibiotic susceptibility testing often misses sub-resistant bacteria, including persistent, tolerant, and heteroresistant populations, which may contribute to treatment failure and resistance evolution. Researchers at Huazhong University of Science and Technology have developed DP-AST, a deep learning-based microfluidic rapid phenotypic AST platform inspired by the Dujiangyan irrigation system. DP-AST measures MIC, bacterial growth activity, and concentration-effect curves to identify hidden sub-resistant bacteria. The study also identified gadE as a key regulator of amikacin sub-resistance in E. coli, offering new insights for resistance mechanism studies and future clinical diagnostics.Traditional MIC-based antibiotic susceptibility testing often misses sub-resistant bacteria, including persistent, tolerant, and heteroresistant populations, which may contribute to treatment failure and resistance evolution. Researchers at Huazhong University of Science and Technology have developed DP-AST, a deep learning-based microfluidic rapid phenotypic AST platform inspired by the Dujiangyan irrigation system. DP-AST measures MIC, bacterial growth activity, and concentration-effect curves to identify hidden sub-resistant bacteria. The study also identified gadE as a key regulator of amikacin sub-resistance in E. coli, offering new insights for resistance mechanism studies and future clinical diagnostics.
- Journal
- Science Bulletin