biomaterials

Imagine you are trapped under rubble after an earthquake and you see an electronics-covered cockroach with a spring-loaded needle on its back scuttling toward you. Although the sight might be unnerving, to say the least, this prototype paramedic cyborg, or “Paraborg,” might one day help deliver lifesaving aid to disaster victims who might be otherwise impossible to reach. The Hardest Problems in …

Harvard researchers have transformed ordinary knitting into a platform for creating fabrics that can snap between different shapes and perform useful functions. Using elastic yarns and industrial knitting techniques, the team engineered thick textiles that naturally curve and lock into multiple stable configurations, much like a light switch flipping between on and off. By adding conductive yarn,…

A new paper-based design tool creates self-folding wearable sensors that conform to body shapes, offering a simple route towards flexible biosignal monitoring for personalised sensing. Researchers at Shibaura Institute of Technology in Japan have developed a parametric design tool that transforms flat sheets of paper into self-folding helical wearable sensors. The approach integrates copper tape …

Researchers developed modular organ-targeting metal-phenolic network coatings that altered where diverse nanoparticles accumulated after intravenous administration in mice. By tuning metal ions, phenolic ligands, and PEG molecular weight, the researchers redirected nanoparticles toward the lungs, kidneys, heart, and brain while preserving functional mRNA delivery in coated lipid nanoparticles.

Researchers engineered a living Citrobacter sp. MICI21 biofilm on copper that outcompeted the corrosive sulfate-reducing bacterium Oleidesulfovibrio alaskensis G20 and formed a dense, mechanically cohesive barrier. The MICI21-dominated biofilm limited sulfide ingress and pitting and produced substantially greater corrosion resistance, supporting microbiome engineering as a potential strategy for …

Microbiologically induced calcite precipitation (MICP) is widely investigated for soil improvement, surface consolidation, and self-healing concrete, yet concrete crack sealing often fails not because calcium carbonate cannot form, but because precipitates are produced at poorly connected locations. In ureolytic systems, Sporosarcina pasteurii and related bacteria raise pH and carbonate alkalinit…

The adult human brain has limited capacity to repair or regenerate neurons lost to Alzheimer’s disease, the most common type of dementia. Existing treatments can slow disease progression but do not reverse cognitive decline. In a study publishing in the Cell Press journal Cell Biomaterials on August 26, researchers show that engineered nanoparticles can not […]

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