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Category: computing – Page 17

They Created Tattoos That Track You Without a Device

Imagine getting a tattoo… that can track your health, location, or identity — and you don’t even need a device. Sounds like sci-fi? It’s real. Scientists have developed futuristic electronic tattoos that use special ink to monitor your body in real-time — from heart rate to hydration — and even transmit data without chips or batteries. But here’s the catch… could this breakthrough be the future of medicine? Or is it a step too close to surveillance under your skin?

Let’s explore how these tattoos work, what they can really do, and the wild implications they might have for your health — and your privacy.

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Scientists steer single atoms on magnetic surfaces for first time

Scientists in Germany have achieved a world first by moving individual atoms from one position to a precisely defined final one using magnetism, unlocking the potential for controlled atomic motion in nanotechnology and data storage.

The research team from the University of Kiel (CAU) and the University of Hamburg used a highly sensitive scanning tunneling microscope (STM) to manipulate atoms on a specially engineered magnetic surface.

Could This Biocomputer Revolutionize Neuroscience and Drug Discovery? Dive into the World of Human Brain Cells on a Chip!

Australian startup Cortical Labs unveils CL1, a groundbreaking biocomputer using human neurons on silicon chips. This fusion offers real-time learning and adaptation, revolutionizing neuroscience and biotech research. Could this be the dawn of bioengineered intelligence?

Scientific breakthrough brings CO2 ‘breathing’ batteries closer to reality

Scientists at the University of Surrey have made a breakthrough in eco-friendly batteries that not only store more energy but could also help tackle greenhouse gas emissions. Lithium-CO₂ ‘breathing’ batteries release power while capturing carbon dioxide, offering a greener alternative that may one day outperform today’s lithium-ion batteries.

Until now, Lithium-CO₂ batteries have faced setbacks in efficiency — wearing out quickly, failing to recharge and relying on expensive rare materials such as platinum. However, researchers from Surrey have found a way to overcome these issues by using a low-cost catalyst called caesium phosphomolybdate (CPM). Using computer modelling and lab experiments, tests showed this simple change allowed the battery to store significantly more energy, charge with far less power and run for over 100 cycles.

The study, published in Advanced Science, marks a promising step toward real-world applications. If commercialised, these batteries could help cut emissions from vehicles and industrial sources — and scientists even imagine they could operate on Mars, where the atmosphere is 95% CO₂

Scalable method creates self-healing, stretchable transistors and circuits

Recent technological advances have enabled the development of a wide range of increasingly sophisticated wearable and implantable devices, which can be used to monitor physiological signals or intervene with high precision in therapeutically targeted regions of the body. As these devices, particularly implantable ones, are typically designed to remain in changing biological environments for long periods of time, they should be biocompatible and capable of fixing themselves after they are damaged.

Researchers at Sungkyunkwan University, the Institute for Basic Science (IBS) and other institutes in South Korea recently devised a new method to fabricate self-healing and stretchable electronic components that could be integrated into these devices. Their approach, outlined in a paper published in Nature Electronics, enables the scalable and reconfigurable assembly of self-healing and stretchable transistors into highly performing integrated systems.

“Since the mid-2000s, the development of flexible and has significantly revolutionized research fields such as artificial electronic skin and soft implantable bioelectronics,” Donghee Son, senior author of the paper, told Tech Xplore.

Towards topological quantum batteries: Theoretical framework addresses two long-standing challenges

Researchers from the RIKEN Center for Quantum Computing and Huazhong University of Science and Technology have conducted a theoretical analysis demonstrating how a “topological quantum battery”—an innovative device that leverages the topological properties of photonic waveguides and quantum effects of two-level atoms—could be efficiently designed. The work, published in Physical Review Letters, holds promise for applications in nanoscale energy storage, optical quantum communication, and distributed quantum computing.

With increasing global awareness of the importance of environmental sustainability, developing next-generation storage devices has become a critical priority. Quantum batteries—hypothetical miniature devices that, unlike classical batteries that store energy via chemical reactions, rely on quantum properties such as superposition, entanglement, and coherence—have the potential to enhance the storage and transfer of energy.

From a mechanistic perspective, they offer potential performance advantages over classical batteries, including improved charging power, increased capacity, and superior work extraction efficiency.