Researchers developed a chitosan-coated, manganese-doped bismuth ferrite nanoplatform that responds to acidic tumor conditions, supports T2 MRI monitoring, and combines chemodynamic therapy with ultrasound-triggered piezodynamic therapy. In subcutaneous U87 glioma-derived tumors in mice, the treatment markedly reduced tumor volume and prolonged survival; in vitro tests also showed pH-responsive MRI behavior, ROS generation, and enhanced transport across a BBB model.
Compounds containing gadolinium, a metal with magnetic properties that help highlight tumors, blood vessels or damaged tissue, are commonly used as contrast agents in MRI. Although these compounds have been essential for medical diagnosis for almost four decades, their use may pose a health risk for patients with kidney failure.
Creating a quantum device often begins by intentionally damaging a crystal.
Researchers developed an AI-assisted, ligand-triggered, room-temperature method to produce FAPbI3 perovskite nanocrystals, combining robotic experimentation, machine learning, and continuous-flow synthesis to improve control over particle size and uniformity. The process produced nearly 13 g of nanocrystals in 1 h, lowered estimated production costs, and yielded laboratory solar cells with power conversion efficiencies above 19% and improved operational and thermal stability.
Motion control specialist PI has released the new H-855 high-load hexapod robot family, a new modular 6-DOF positioning platform designed to precisely position and align payloads weighing up to 500 kg (1100 lbs).
This review evaluates chitosan-based wound dressings that integrate therapeutic ions, mesoporous silica nanocarriers, and superparamagnetic iron oxide nanoparticles to address infection, impaired angiogenesis, oxidative stress, and poor tissue regeneration in diabetic wounds. It argues that combining these components could enable controlled therapeutic delivery, magnetic responsiveness, imaging, and regenerative functions, while stressing that a fully integrated four-component system for diabetic wound healing has not yet been reported and still requires preclinical and clinical validation.
Researchers engineered a stretchable pressure-sensitive composite that combines carbon nanofibers and carbon black nanoparticles in PDMS to tune sensitivity, sensing range, and resistance response. They integrated the material into flexible sensor arrays and paired it with circuit modeling and normalization to reduce crosstalk and track spatial pressure patterns and handwritten trajectories.
Researchers combined millisecond-resolution small-angle X-ray scattering microscopy with polarized light imaging to track nanoscale particle orientation and macroscopic Taylor–Couette flow across seven orders of magnitude in length scale. The experiments showed that platelet-like graphene oxide largely tracked the macroscopic vortex motion, while rod-like cellulose nanocrystals displayed much faster orientational behavior linked to vortex turnover.
Researchers built an InSb-lithium niobate acoustoelectric current source that converts RF-driven surface acoustic waves directly into DC, with a wired output tunable from 1.22 nA to 25.46 µA and stable operation over 12 hours. The same platform also operated under wireless RF excitation and was tested for low-current stimulation in a rat wound model, although its RF-to-DC efficiency remains far below that of conventional rectifiers.
Will a transducer move enough under load? What capacitance must the drive handle? PI's online calculator estimates both for common ceramic geometries.
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