Device

Reprogrammable and bistable magnetically driven pixel array with customizable surface properties Wu et al. present a magnetically controlled pixel array with reprogrammable pixels that can self-maintain their functional states, utilizing a pulsed magnetic tip for programming (∼100 ms) and a tri-pole locking mechanism for stability. The pixel array can also incorporate customizable surface properties for multimodal interactions and have potential applications in various domains, such as thermal management and dynamic camouflage.

Reprogrammable and bistable magnetically driven pixel array with customizable surface properties

A polarization-maintaining endoscope for surgical imaging Song et al. present a technique to achieve a polarization-maintaining endoscope that is compatible with the sapphire windows used in standard clinical endoscope design by developing a birefringence compensation approach. Using this device, the polarization-resolved imaging methods can be implemented in endoscopy in vivo. Polarization-resolved endoscopy with this device enhances surgical imaging by removing specularities, improving the image visibility affected by surgical smoke, and enabling accurate polarimetric endoscopy for tissue characterization, supporting precise detection and intelligent operation during minimally invasive surgery.

A polarization-maintaining endoscope for surgical imaging

Full-response triboelectric nanogenerator modeling and sensing framework: Zero state and zero input in synergy In this work, we developed a full-response analytical model incorporating a dual-switch design to achieve precise discharge interval control and diverse waveform generation. By combining the zero-input response and zero-state response, this work demonstrates remarkable performance in motion state detection and capacitance measurement. This work unites theory and application, offering a framework for advanced electrostatic-induction-based sensing technologies in emerging intelligent systems.

Full-response triboelectric nanogenerator modeling and sensing framework: Zero state and zero input in synergy

Gradient pulling of a tethered robot via a magnetic resonance imaging system This study presents a novel MRI-actuated robotic guidewire that uses the scanner’s magnetic gradient fields for navigation. The system employs a soft leader-follower mechanism, where a tethered magnetic tip is incrementally guided and followed by a flexible sleeve. This approach enables controlled movement through complex anatomical pathways. The work demonstrates the feasibility of integrating magnetic actuation and imaging within MRI, opening new possibilities for precise, minimally invasive robotic interventions using existing clinical infrastructure.

Gradient pulling of a tethered robot via a magnetic resonance imaging system

Stable long-term ground-based microgravity environment for cryogenic fluids Obtaining microgravity experimental data for cryogenic propellants in aerospace applications is challenging. Xiao et al. introduce a long-term ground-based microgravity simulation device for liquid oxygen using superconducting magnetic levitation. A microgravity level of 0.033 g0 was achieved within a region of ⌀100 × 112 mm.

Stable long-term ground-based microgravity environment for cryogenic fluids

Gastrointestinal neuromuscular interfaces: Bioelectronic device design for gastrointestinal motility

A radically simple, ingestible colorimetric biosensor pill for cost-effective, non-invasive monitoring of intestinal inflammation This study describes the development of an ingestible pill-based biosensor device, the pill for reactive oxygen species (ROS)-responsive inflammation monitoring (PRIM), that uses ROS-responsive polymers to trigger colored dye release in the presence of intestinal inflammation. Proof of concept is supported by consistent observation of blue feces in rats with colitis. The PRIM device’s simple dye release mechanism would eliminate fecal sample handling and analysis and is a promising candidate for a patient-friendly, cost-effective solution for intestinal inflammation monitoring.

A radically simple, ingestible colorimetric biosensor pill for cost-effective, non-invasive monitoring of intestinal inflammation

Single-pixel spectrometer based on a bias-tunable tandem organic photodetector Miniaturized spectrometers open new possibilities for on-chip and portable optical sensing. Here, we demonstrate a two-terminal organic photodetector design that enables a bias-tunable spectral response without filters or moving parts. By leveraging complementary organic semiconductors in a tandem architecture, the device reconstructs complex light spectra with high precision and low power.

Single-pixel spectrometer based on a bias-tunable tandem organic photodetector

Janus adhesive hydrogel scaffold for monitoring pressure and shape changes in human intestinal sphincter Wang et al. present a Janus adhesive hydrogel scaffold with an inverse opal microstructure that provides adhesion in the intestinal environment. The integrated multi-channel sensor system can capture dynamic signals from sphincter movement that are then analyzed to distinguish physiological states. This platform can offer in situ monitoring and diagnosis of gastrointestinal function.

Janus adhesive hydrogel scaffold for monitoring pressure and shape changes in human intestinal sphincter

Wearable organic-electrochemical-transistor-based lithium sensor for precision mental health Mental health disorders, including bipolar disorder, pose significant challenges worldwide, necessitating precise monitoring of lithium, a gold-standard medication for this condition. We introduce a fully printed, wearable organic electrochemical transistor (OECT)-based sensor for non-invasive and continuous monitoring of lithium levels in sweat. This sensor integrates inkjet and 3D printing to fabricate multilayer OECTs with an ion-selective membrane alongside iontophoretic sweat induction and microfluidic guidance for real-time sensing.

Wearable organic-electrochemical-transistor-based lithium sensor for precision mental health

Sensory neuromorphic displays This review introduces sensory neuromorphic displays that unify sensing, memory, and visualization in a compact platform. By embedding neuromorphic hardware into display systems, these devices process diverse stimuli and dynamically generate real-time, adaptive visual feedback, paving the way for intelligent, context-aware human-machine interactions.

Sensory neuromorphic displays

A roadmap for the implementation of 3D-printed organs in healthcare 3D printing is transforming healthcare by enabling patient-specific treatments and reducing surgical risks. This comprehensive review discusses the latest advancements in 3D-printed medical devices and organs, covering their clinical applications across various organ systems. It explores the potential for personalized treatments, regenerative medicine, and functional organ replacement, offering insights into the future of medical innovation.

A roadmap for the implementation of 3D-printed organs in healthcare

Enhancing year-round photovoltaic performance using the dual cooling and warming functions of hydrogels Yang et al. developed a polyacrylamide (PAM) hydrogel to enhance PV efficiency under different weather conditions. The hydrogel can provide efficient evaporative cooling during summer months with a peak temperature reduction of 27°C and can also accelerate snow melting via vapor adsorption during winter months for year-round applicability.

Enhancing year-round photovoltaic performance using the dual cooling and warming functions of hydrogels

In-sensor integrated mechanoacoustic perception through reconfigurable metamaterial Li et al. propose an in-sensor integration framework, using the multi-stable reconfigurable origami resonators as the mechanoreceptor for mechanoacoustic perception. The auditory transduction characteristics of the mechanoacoustic sensor are altered through amplitude modulation in the frequency relationship. A deep learning framework for the parallel processing of fused signals was developed to accurately decode proprioceptive and auditory features. The proprioceptive-auditory fusion authorization, which enhances safety, demonstrates the potential for applications.

In-sensor integrated mechanoacoustic perception through reconfigurable metamaterial

High-temperature memory devices based on ferroelectric ScAlN/AlGaN/GaN high-electron-mobility transistors Jie Zhang et al. present ferroelectric ScAlN/AlGaN/GaN high-electron-mobility transistors that integrate nonvolatile memory and logic functions within GaN platforms, distinguished by their thermal resilience. The devices exhibit an on/off current ratio of >108, a memory window of ∼4 V, reliable endurance and retention, and stable operation up to 350°C, enabled by the high-quality material interfaces and the inherent thermal robustness of the ScAlN/GaN platform.

High-temperature memory devices based on ferroelectric ScAlN/AlGaN/GaN high-electron-mobility transistors

Tile displaying key metrics surrounding Device's first impact factor: 8.0 impact factor, over 940K downloads, over 1500 citations, 3 days to out to review decision, authors spanning 24 countries.

The Cell Press journal @cp-device.bsky.social has just received its first partial #ImpactFactor, coming in at 8.0!

Learn more about #Device and the research we've published here: http://dlvr.it/TLgSsD

Ethical, legal, and social issues related to ingestible, implantable electronic devices and mRNA delivery devices Bero et al. explore the ethical, legal, and social implications of ingestible, implantable medical devices, delving into topics from the core principles of bioethics to privacy and security concerns, as well as perceptions of trust and invasiveness in healthcare.

Ethical, legal, and social issues related to ingestible, implantable electronic devices and mRNA delivery devices