Lower extremity paralysis has become common in recent years, and robots have been developed to help patients recover from it. This paper presents such a robotic system that allows for two working modes, the robot-active mode human-active mode. The robot is designed be equipped with magnetorheological (MR) actuators advantages of high torque, fast response, flexible controllability, low power consumption safety guarantee. design characteristics MR actuator are introduced. In mode, works as...

Soft robotic gloves have attracted significant interest in hand rehabilitation the past decade. However, current solutions are still heavy and lack finger-state monitoring versatile treatment options. To address this, we present a lightweight soft glove actuated by twisted string actuators (TSA) that provides whole-hand finger motion tracking. We developed virtual reality environment for training, allowing users to interact with various objects. Fifteen small inertial measurement units...

Abstract Suction cups has been widely utilized to grasp objects, but they typically encounter challenges with sealing failure and non-adjustable adhesion force. In this study, a bioinspired suction cup integrated an shape memory alloy actuated module was proposed solve these problems. The actuating performance under different input current firstly investigated ensure the effectiveness of module. Then, inspired by surface structures tree frog’s toe pad, synthetic hexagonal microstructures at...

Flexible and stretchable tactile sensors show promising applications in robotics, prosthetics, wearable electronics. This paper demonstrates an electrical impedance tomography (EIT) based highly flexible, touch-sensitive pressure sensor using magnetic hydrogels. EIT technology has been explored for continuous distributed strain sensing imaging. Magnetic hydrogel composites are synthesized by simultaneous polymerization crosslinking of acrylamide with carbonyl iron particles (CIPs). The...

Magnetic hydrogels are composed of magnetic particles and hydrogel matrix. In recent years, the have been developed rapidly because they shown promising applications in drug release artificial muscle. this paper, we proposed a study to develop novel anisotropic investigate their mechanical sensing properties for possible soft robotics. preparing hydrogels, polyacrylamide (PAAm) is chosen as model its popular application electronics ionic conductors. A method free radicals copolymerization...

A novel copper bromide ionic compound (bz-ted)CuBr 2 (tpp) ·H O was reported. The inorganic module of the is CuBr − that has been coordinated to two tpp molecules, generating strong blue photoluminescence.

Alterations in intestinal function play a crucial role the pathogenesis of sepsis, and repair barrier is potential strategy for treatment sepsis. Sestrin2 (SESN2), highly conserved stress-responsive protein, can be induced response to stress.This paper aimed explore mechanism SESN2 septic dysfunction.Blood samples were collected from patients with dysfunction, Caco-2 cells subjected lipopolysaccharide (LPS) construct vitro models. The expression level was determined blood cells. impacts...

By using pyrazine derivatives, three different types of copper(<sc>i</sc>) iodide based inorganic–organic hybrid structures have been prepared.

This work investigates the mechanical properties, microstructures, and water-swelling behavior of a novel hydrogel filled with magnetic particles. The nanoparticles magnetite (Fe3O4) micro-particles carbonyl iron (CI) were selected into polyacrylamide (PAAM) matrix to create two types hydrogels. isotropy anisotropy hydrogels are also presented in this study. isotropic samples cured without applying field (MF), anisotropic by an MF direction perpendicular thickness samples. effects size,...

The removal of dibenzyl disulfide (DBDS) from transformer oils is vital to the sustainable operation transformers. Here, Ag/γ-Al2O3 samples were prepared by a planetary mixer-assisted impregnation method and characterized. effect adsorption time temperature on equilibrium DBDS onto was discussed. kinetics isotherms studied. desorption activation energy also estimated through temperature-programmed (TPD) experiments. Results indicated that capacities increased quickly within first 3 h,...

Lower extremity paralysis tends to be common in recent years, and rehabilitation robots are developed help patients recover. In this paper, a robotic exoskeleton is designed provide training two modes, including robot-active mode human-active mode. Magnetorheological (MR) actuators manufactured set the robot. mode, MR actuator works as clutch transfer torque generated by motor leg joint, providing flexible instantaneously for human safety reducing power consumption. While functions brake...

This paper presents a novel Continuously Variable Transmission (CVT) based on Twisted String Actuator (TSA), capable of automatically adjusting its Ratio (TR) in response to external loads.Utilizing lightweight hyperelastic slender rods, the CVT achieves simple, compact, and cost-effective design.By manipulating distance between two twisted strings through rod deformation, TR continuously adapts varying load conditions.Mathematical models TSA-based system are derived experimentally...

Twisted string actuators (TSAs) are innovative linear soft that can mimic natural muscle contraction. However, obtaining feedback on their stroke requires cumbersome external sensors compromise compliance. We addressed this by developing self-sensing strings using conductive polymer composites (CPCs). The CPC exhibit electrical resistance changes in response to strain, enabling sensing the themselves. fabricated CPCs with varying concentrations of multi-walled carbon nanotubes (MWCNTs)....

The exploration of adaptive robotic systems capable performing complex tasks in unstructured environments, such as underwater salvage operations, presents a significant challenge. Traditional rigid grippers often struggle with adaptability, whereas bioinspired soft offer enhanced flexibility and adaptability to varied object shapes. In this study, we present novel gripper integrated shape memory alloy (SMA) actuated suction cup, inspired by the versatile grasping strategies octopus arms...

Twisted string actuators, which are an emerging artificial muscle, efficiently convert rotary motor motion into linear load movement, with advantages like high transmission ratio, compliance, simple structure, and long-distance power transmission. However, the limited range of ratio adjustment remains a challenge. Thus, this paper introduces novel twisted actuator design that automatically continuously adjusts its in response to external loads. Utilizing lightweight hyperelastic slender...

Organic-inorganic hybrid coatings (OIHCs) have attracted significant attention due to their superior properties by combing both the inorganic component and organic together. This type of exhibit unique from nanomaterials polymers. The recent development offshore wind power devices (OWPDs) sets up high requirements for corrosion protective coating materials. application OIHCs as OWPDs is still at its initial stage. mini-review summarizes strategies provides outlook materials OWPDs. sol-gel...

In unstructured environment, robots can not effectively capture different shape and weight objects efficiently. view of this situation, paper has designed a platform intelligent data acquisition based on the Dexterous Manipulator hand, which consists Kinect 2.0 camera, BH8-282 three-finger dexterous UR5 six-DOF robot arm so on. According to automatic identification position target object, complete crawl action get object visual tactile information through autonomous movement planning route....

This paper presents a method to measure what and how deep users can perceive when exploring virtual reality environments using head mounted display.A preliminary user study was conducted verify that gaze behavior has specific differences in immersive compared with conventional, non-immersive environments, which are based on desktop screen.Gathered from the results for behavior, experiencing more likely adjust their movement center interesting objects vision.Based this finding, quantitative...