Luquan Ren
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View article: Bioinspired 3D braided artificial ligament with human-like mechanical properties and self-healing capability
Bioinspired 3D braided artificial ligament with human-like mechanical properties and self-healing capability Open
Introduction Joint injuries, a major type of human musculoskeletal disorder, are often accompanied by soft tissue damage, and restoring ligament integrity is a key strategy for reconstructing joint function. However, existing artificial li…
View article: Hydrogel-shape memory polymer synergistic effect enabled 4D-printed ceramic precursors with programmable recovery onset and reversible deformation
Hydrogel-shape memory polymer synergistic effect enabled 4D-printed ceramic precursors with programmable recovery onset and reversible deformation Open
Ceramic 4D printing, which integrates dynamic deformation with additive manufacturing, demonstrates significant potential in intelligent manufacturing, on-demand shaping of complex structures, and multifunctional device development. Its co…
View article: Hypersensitive pressure sensors inspired by scorpion mechanosensory mechanisms for near-body flow detection in intelligent robots
Hypersensitive pressure sensors inspired by scorpion mechanosensory mechanisms for near-body flow detection in intelligent robots Open
Sensitivity enhancement for pressure sensors over a broad linear range can improve sensing performance for a wide range of applications such as health monitoring and artificial intelligence. Here, inspired by the high-precision mechanosens…
View article: Bioinspired passive radiative cooler with superior transparency and durability for energy-efficient building
Bioinspired passive radiative cooler with superior transparency and durability for energy-efficient building Open
Passive radiative cooling (PRC) materials can achieve effective cooling without energy consumption through strong light reflection and spontaneous infrared radiation, which is of great importance in mitigating global warming and energy cri…
View article: Bio‐Inspired Stored Magnetic Energy Actuator with Transient Triggering and Programmable Logic
Bio‐Inspired Stored Magnetic Energy Actuator with Transient Triggering and Programmable Logic Open
Smart actuators generally face the problems of limited response speed, dependence on external energy supply, and lack of multi‐environmental signal logic judgment capability. Therefore, this study proposes a new paradigm of bionic magnetic…
View article: Flexible dual-core optical waveguide with variable contact-induced losses for quasi-distributed tactile sensing
Flexible dual-core optical waveguide with variable contact-induced losses for quasi-distributed tactile sensing Open
Optical waveguide tactile sensors, essential for measuring contact forces, have gained significant attention in recent years due to their high sensitivity, resistance to electromagnetic interference, and potential for distributed tactile s…
View article: Wide Linearity Range and Rapid‐Response Tactile Sensor Inspired by Parallel Structures
Wide Linearity Range and Rapid‐Response Tactile Sensor Inspired by Parallel Structures Open
The synergistic enhancement of both linear range and response speed is crucial for simplifying the signal processing/conversion of tactile sensors and improving real‐time perception. However, traditional tactile sensors face challenges in …
View article: Study on the characteristics of head and neck movements of geese walking in a straight line at different speeds
Study on the characteristics of head and neck movements of geese walking in a straight line at different speeds Open
Background The avian cervical spine, a crucial anatomical structure connecting the cephalic and thoracic regions, serves a critical function in maintaining visual stability during locomotion. Extensive studies have documented characteristi…
View article: The Anisotropic Osteoinductive Capacity of a Nickel–Titanium Alloy Fabricated Through Laser Powder Bed Fusion
The Anisotropic Osteoinductive Capacity of a Nickel–Titanium Alloy Fabricated Through Laser Powder Bed Fusion Open
A novel parameter optimization method for additively manufacturing nickel–titanium (NiTi) alloys using laser powder bed fusion (LBPF) was developed. Compared with the conventional NiTi alloy and the previously reported LPBF-NiTi alloy, the…
View article: Analysis of morphological parameters of vertebrae in domestic geese and ducks
Analysis of morphological parameters of vertebrae in domestic geese and ducks Open
Background Birds have evolved morphologically diverse neck structures in order to adapt to different foraging styles. Studying avian neck structure and function can not only help us understand their evolutionary processes and ecological ro…
View article: Detection of Positive and Negative Pressure in a Double-Chamber Underwater Thruster
Detection of Positive and Negative Pressure in a Double-Chamber Underwater Thruster Open
The aim of this paper is to develop a compact, rapid-response pressure sensor for underwater propulsion. Flexible pressure sensors are widely utilized in human–computer interactions and wearable electronic devices; however, manufacturing c…
View article: New insights into chronic ankle instability: an in vivo evaluation of three-dimensional motion and stability of the ankle joint complex
New insights into chronic ankle instability: an in vivo evaluation of three-dimensional motion and stability of the ankle joint complex Open
Introduction Chronic ankle instability (CAI) is generally associated with repetitive ankle sprains with concomitant ligament injuries and abnormal joint motion, which affects the stability of the joint. This study aims to quantify and comp…
View article: Body‐Coupled Multifunctional Human‐Machine Interfaces with Double Spiral Electrode Structure
Body‐Coupled Multifunctional Human‐Machine Interfaces with Double Spiral Electrode Structure Open
Human‐machine interfaces (HMIs) serve as essential channels for communication between humans and machines. However, current HMIs often require the integration of batteries, multiple sensing components, and electrodes, resulting in complex …
View article: A Neural Device Inspired by Neuronal Oscillatory Activity with Intrinsic Perception and Decision‐Making
A Neural Device Inspired by Neuronal Oscillatory Activity with Intrinsic Perception and Decision‐Making Open
Bionic neural devices often feature complex structures with multiple interfaces, requiring extensive post‐processing. In this paper, a neural device with intrinsic perception and decision‐making (NDIPD), inspired by neuronal oscillatory ac…
View article: Legged Robot with Tensegrity Feature Bionic Knee Joint
Legged Robot with Tensegrity Feature Bionic Knee Joint Open
Legged robots, designed to emulate human functions, have greatly influenced numerous sectors. However, the focus on continuously improving the joint motors and control systems of existing legged robots not only increases costs and complica…
View article: Material Extrusion Additive Manufacturing of Lunar Soil Simulant Brick
Material Extrusion Additive Manufacturing of Lunar Soil Simulant Brick Open
In-situ utilization of lunar soil resources to create construction units such as bricks is one of the best methods for establishing architectures on the moon, avoiding the exorbitant costs associated with transporting materials and massive…
View article: Effects of Different Intertillage Practices on Soil Biochemical Properties and Soybean Yield in Soybean Fields
Effects of Different Intertillage Practices on Soil Biochemical Properties and Soybean Yield in Soybean Fields Open
Heilongjiang Province, China, is a major soybean-producing area where low temperatures in early spring and poor soil moisture retention are the main limiting factors leading to low soybean yields. To improve land productivity, this study w…
View article: Shock wave attenuation in a high-entropy alloy with pre-existing dislocation network
Shock wave attenuation in a high-entropy alloy with pre-existing dislocation network Open
High entropy alloys (HEAs), with their outstanding mechanical properties, hold promise as potential candidates for next-generation structural applications. However, the in-depth understanding of dynamic deformation mechanisms remains limit…