Results 111 to 120 of about 58,770 (304)

Dual‐Functional Ingestible Passive Capsules for High‐Throughput Intestinal Sampling with Sealed Containment and Targeted Drug Delivery

open access: yesAdvanced Robotics Research, EarlyView.
To address challenges in high‐throughput intestinal sampling with sealed containment and target drug delivery, we developed a dual‐functional ingestible passive capsule with a dual‐triggered control system based on pH‐response and mechanical actuation.
Libing Huang   +9 more
wiley   +1 more source

MoS2 solid-lubricating film fabricated by atomic layer deposition on Si substrate

open access: yesAIP Advances, 2018
How to reduce friction for improving efficiency in the usage of energy is a constant challenge. Layered material like MoS2 has long been recognized as an effective surface lubricant.
Yazhou Huang   +5 more
doaj   +1 more source

The role of the micro environment on the tribological behavior of materials [PDF]

open access: yes
The properties of the environment which exert an influence upon adhesion, friction, wear, and lubrication of materials in solid state contact are discussed.
Buckley, D. H.
core   +1 more source

A Superlubricated Magnetically Steerable Microcatheter with Integrated Optical and Fluidic Channels

open access: yesAdvanced Robotics Research, EarlyView.
A magnetically steerable microcatheter with integrated optical and fluidic channels is developed for multifunctional navigation in tortuous anatomical environments. A surface‐grafted hydrogel coating enables low‐friction actuation. The device demonstrates stable light and fluid delivery during magnetic manipulation, offering a compact platform for ...
Yuntian Du   +5 more
wiley   +1 more source

Metallic film diffusion for boundary lubrication Patent [PDF]

open access: yes, 1967
Metallic film diffusion for boundary lubrication in aerospace ...
Buckley, D. H., Johnson, R. L.
core   +2 more sources

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

open access: yesAdvanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis   +7 more
wiley   +1 more source

Ultra‐High Friction and Adhesion in Hydrogel Layer Driven by Wet‐to‐Dry Transition Dynamics

open access: yesAdvanced Science, EarlyView.
This work reveals a critical wet‐to‐dry transition in polyacrylamide hydrogel layers that induces volumetric shrinkage, resulting in enhanced interfacial contact and dramatically increased friction and adhesion. Leveraging this transition enables strong, reversible gripping on diverse surfaces, offering new insights for hydrogel‐based gripping ...
Chenxu Liu   +11 more
wiley   +1 more source

Interface characteristics of textured composite solid lubricant coating to improve the tribological performance of TC4

open access: yesFriction
For improving the tribological performance, the textured composite solid lubricant coating was prepared on the surface of Ti–6Al–4V (TC4). The effects of composite coating with different texture densities on the tribological properties of TC4 were ...
Shaoqian Qin   +5 more
doaj   +1 more source

Ionic–Bionic Interfaces: Advancing Iontronic Strategies for Bioelectronic Sensing and Therapy

open access: yesAdvanced Science, EarlyView.
Ionic–bionic interfaces for bioelectronics leverage ions as multifunctional mediators that combine mechanical compliance, ionic and electronic functionalities, and therapeutic effects. These systems offer real‐time biosignal transduction, effective wound dressing, responsive drug delivery, and seamless interaction between soft tissues and electronic ...
Yun Goo Ro   +6 more
wiley   +1 more source

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