Results 41 to 50 of about 5,561 (243)

Towards a micropositioning system for targeted drug delivery in wireless capsule endoscopy [PDF]

open access: yes, 2011
This paper describes a novel micropositioning mechanism for achieving 1ml of targeted drug delivery within wireless capsule endoscopes. The mechanism allows a needle to be positioned within a 22.5° segment of a cylindrical capsule and be extendible by up
Woods, SP   +3 more
core   +1 more source

Magnetic Mobile Microrobots for Upstream and Downstream Navigation in Biofluids with Variable Flow Rate

open access: yesAdvanced Intelligent Systems, 2022
Magnetic mobile microrobots navigating biofluids with both upstream and downstream locomotion provide a promising solution to targeted drug delivery for precision medicine.
Zehao Wu   +5 more
doaj   +1 more source

Recent Advances in the Application of Piezoelectric Materials in Microrobotic Systems

open access: yesMicromachines, 2022
Recent advances in precision manufacturing technology and a thorough understanding of the properties of piezoelectric materials have made it possible for researchers to develop innovative microrobotic systems, which draw more attention to the challenges ...
Alireza Fath, Tian Xia, Wei Li
doaj   +1 more source

Medical Microrobots

open access: yesAnnual Review of Biomedical Engineering
Scientists around the world have long aimed to produce miniature robots that can be controlled inside the human body to aid doctors in identifying and treating diseases. Such microrobots hold the potential to access hard-to-reach areas of the body through the natural lumina.
Iacovacci, Veronica   +3 more
openaire   +3 more sources

Review of Bubble Applications in Microrobotics: Propulsion, Manipulation, and Assembly

open access: yesMicromachines, 2022
In recent years, microbubbles have been widely used in the field of microrobots due to their unique properties. Microbubbles can be easily produced and used as power sources or tools of microrobots, and the bubbles can even serve as microrobots ...
Yuting Zhou, Liguo Dai, Niandong Jiao
doaj   +1 more source

4D–Printed Photothermally Actuated Soft Microgripper on an Optical Fiber Tip for Biomedical Applications

open access: yesAdvanced Materials Technologies, EarlyView.
In this study, we developed a light–driven soft microgripper by 3D–printing a photo–crosslinkable, temperature–responsive hydrogel with embedded silver particles onto an optical fiber tip. The microgripper actuates via photothermal effects at cell culture temperature and can gently grasp spheroids without minimal damage, offering a compact, actuator ...
Shogo Oishi   +7 more
wiley   +1 more source

Anomalous Dynamics of Superparamagnetic Colloidal Microrobots with Tailored Statistics [PDF]

open access: yes
Living organisms have developed advanced motion strategies for efficient space exploration, serving as inspiration for the movements of microrobots. These real‐life strategies often involve anomalous dynamics displaying random movement patterns that ...
Volpe, Giorgio   +2 more
core   +3 more sources

Macrophage-Based Microrobots for Anticancer Therapy: Recent Progress and Future Perspectives

open access: yesBiomimetics, 2023
Macrophages, which are part of the mononuclear phagocytic system, possess sensory receptors that enable them to target cancer cells. In addition, they are able to engulf large amounts of particles through phagocytosis, suggesting a potential “Trojan ...
Van Du Nguyen, Jong-Oh Park, Eunpyo Choi
doaj   +1 more source

3D‐Printed Actuator Powered by Liquid Crystal Elastomer Muscles at the Water–Air Interface

open access: yesAdvanced Materials Technologies, EarlyView.
Soft robots for unstructured environments require responsive, durable actuators. Liquid crystal elastomers (LCEs) provide large reversible deformations under thermal or optical stimuli. Direct ink writing enables fabrication of LCE actuators integrated with silicone, with mesogen chemistry and oligomers optimized for printable inks.
Cecilie Ryberg   +5 more
wiley   +1 more source

Information Transmission Strategies for Self‐Organized Robotic Aggregation

open access: yesAdvanced Robotics Research, EarlyView.
In this review, we discuss how information transmission influences the neighbor‐based self‐organized aggregation of swarm robots. We focus specifically on local interactions regarding information transfer and categorize previous studies based on the functions of the information exchanged.
Shu Leng   +5 more
wiley   +1 more source

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