Results 121 to 130 of about 407,209 (362)
Surfactant Assemblies Directing Chemical Transfer Cascades in Convective Marangoni Flow Pumps
Convective Marangoni flow pumps allow for chemical transfer cascades amongst droplets that are positioned at the air/water interface. The system comprises of myelins progressing along surface tension gradients, delivering amphiphiles at oil droplets and thereby triggering the emission of emulsified microdroplets, which in turn follow the Marangoni ...
Dimitrios Karagrigoriou+1 more
wiley +1 more source
Soft Electromagnetic Actuator and Oscillator
This work presents a groundbreaking soft electromagnetic system capable of bistable actuation and self‐regulated oscillation. Using liquid metal and silicone as a compliant conductor, the actuator enables force generation, sensing, and feedback with minimal power.
Noah D. Kohls, Yi Chen Mazumdar
wiley +1 more source
Jefferson Surgeon Performs Minimally Invasive Robotic Mitral Valve Repair [PDF]
Routine physical exams often reveal the presence of a heart murmur, which can be the first sign of mitral valve prolapse. Typically diagnosed with an echocardiogram, mitral valve prolapse is a condition in which the valve separating the upper and lower ...
core +1 more source
This article demonstrates that encasing a hyperelastic balloon in an inextensible sleeve greatly increases its burst pressure. This simple mechanical behavior can be used to produce an asymmetric inflation‐deflation sequence for coupled balloons with different thicknesses so they could serve as a soft robot's rear and front anchors when driven from a ...
Ifat Gertler, Katherine J. Kuchenbecker
wiley +1 more source
Computation of incompressible viscous flows through artificial heart devices with moving boundaries [PDF]
The extension of computational fluid dynamics techniques to artificial heart flow simulations is illustrated. Unsteady incompressible Navier-Stokes equations written in 3-D generalized curvilinear coordinates are solved iteratively at each physical time ...
Chang, I.-DEE+3 more
core +1 more source
Mucosa‐Interfacing Capsule for In Situ Sensing the Elasticity of Biological Tissues
A fundamental mechanism of palpating soft materials is reported to sense deep tissue elasticity in situ with minimal invasion using the interaction between the robot palpation unit and soft tissues. Both the robot locomotion and elasticity sensing functions are remotely controlled by external magnetic fields, while the sensing data are wirelessly ...
Kiyoung Kim+10 more
wiley +1 more source
Molybdenum hexafluoride as a pretreatment is able to create a chemical contrast between SiN and SiO2 surfaces via selective fluorine passivation of the oxide. One dose of MoF6 enabled 9.7 nm of selective deposited TiO2 on SiN versus SiO2 with selectivity >0.92 on a nanoscale SiN/SiO2 patterned surface.
Jeremy M. Thelven+6 more
wiley +1 more source
Evidence for a mitral valve origin of the left ventricular third heart sound. [PDF]
John Fleming
openalex +1 more source
One‐Step Covalent Biofunctionalization of Tubular Constructs Enabled by Surface‐Embedded Radicals
Uniform covalent biofunctionalization of tubular constructs is achieved in one step using surface‐embedded radicals generated by a novel plasma immersion ion implantation (PIII) technology. This scalable, solvent‐free technology advances bioengineered tubes for tissue engineering and implant applications.
Anyu Zhang+12 more
wiley +1 more source