Scientists developed an automated, high-throughput system that relies on imaging biofluid droplets for disease diagnosis, reducing the number of consumables and equipment needed for biomedical testing. In the workflow, images of a drying droplet are analyzed by machine-learning algorithms to diagnose abnormalities in blood. Differences in the drying process of biofluid droplets are used to distinguish between normal and disease samples. This technology can also be used with other bodily fluids, including saliva and urine, and may provide a fast, cost-efficient diagnostic testing means in underserved communities and developing countries.

An AI tool that can analyse abnormalities in the shape and form of blood cells, and with greater accuracy and reliability than human experts, could change the way conditions such as leukaemia are diagnosed.

3D printing, as a versatile additive manufacturing technique, offers high design flexibility, rapid prototyping, minimal material waste, and the capability to fabricate complex, customized geometries. These attributes make it particularly well-suited for low-temperature hydrogen electrochemical conversion devices—specifically, proton exchange membrane fuel cells, proton exchange membrane electrolyzer cells, anion exchange membrane electrolyzer cells, and alkaline electrolyzers—which demand finely structured components such as catalyst layers, gas diffusion layers, electrodes, porous transport layers, and bipolar plates. This review provides a focused and critical summary of the current progress in applying 3D printing technologies to these key components. It begins with a concise introduction to the principles and classifications of mainstream 3D printing methods relevant to the hydrogen energy sector and proceeds to analyze their specific applications and performance impacts across different device architectures. Finally, the review identifies existing technical challenges and outlines future research directions to accelerate the integration of 3D printing in next-generation low-temperature hydrogen energy systems.