Nano Letters, Journal Year: 2024, Volume and Issue: 24(42), P. 13422 - 13430
Published: Oct. 10, 2024
Optically and magnetically responsive soft actuators are gaining attention for their noncontact actuation, flexibility, remote control capabilities. However, they face challenges in rapidly switching motion postures modes, which limits performance complex environments. We developed bilayer hydrogel based on poly(
Language: Английский
ACS Biomaterials Science & Engineering, Journal Year: 2024, Volume and Issue: 10(9), P. 5562 - 5594
Published: Aug. 15, 2024
As a new micromanipulation tool with the advantages of small size, flexible movement and easy manipulation, light-driven microrobots have wide range prospects in biomedical fields such as drug targeting cell manipulation. Recently, been controlled various ways, light field has become research hotspot by its noncontact precise localization, fast response, biocompatibility. It utilizes force or deformation generated to precisely control microrobot, combines release technology realize targeted application. Therefore, this paper provides an overview provide ideas for manipulation microrobots. Here, briefly categorizes driving mechanisms materials microrobots, which mainly include photothermal, photochemical, biological. Then, typical designs different strategies multiple physical are summarized. Finally, applications bioimaging presented well future demonstrated.
Language: Английский
Citations
6
Nano Letters, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 21, 2025
In nature, animals can realize multimodal movements such as walking, climbing, and jumping through transformation in locomotor gaits or form for survival, which is highly desired untethered flexible actuators yet remains challenging. Here, we propose a robust self-healing actuator enabled by noncovalent assembled nanostructures with elaborate regulation of multistage responsive behaviors. Owing to the dynamic interfacial design between multiple components, stimulus be accurately delivered "light-heat-force release" pathway, endowing diverse motion capabilities ability (27 cm, 34 times body length). Moreover, reversible recombination sliding properties network ensure high toughness (81.9 kJ/mol) efficiency (88.2%), greatly benefit long-term service under complex demanding scenarios. This study provides strategy improve their adaptability stability environments.
Language: Английский
Citations
0
Journal of Bionic Engineering, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 6, 2025
Language: Английский
Citations
0
Nano Letters, Journal Year: 2025, Volume and Issue: unknown
Published: March 3, 2025
Optical interferometry enables distance measurement with record-high precision. However, the conventional interference intensity shows fast spatial variations, limiting photodetection to a single spot. The light at this spot is affected by various noises, restricting signal-to-noise ratio (SNR) of coherent system. Here, we generate uniform patterns based on zero-index metawaveguides, enabling spatially extended through multiple-pixel measurements charge-coupled device. Averaging intensities measured across multiple pixels cancels uncorrelated noise, significantly improving SNR and allowing detection weakly reflected optical power. Experiments show that nanoscale displacements down 26 nm (λ0/59) can be converted into high-contrast changes over macroscopic area, leading an 10+ times higher (11.68 dB) than single-spot photodetection. Our nanophotonic platform implemented in any system, possibly transformative impact precise distance, profile, spectrum.
Language: Английский
Citations
0
Sensors and Actuators B Chemical, Journal Year: 2025, Volume and Issue: unknown, P. 137757 - 137757
Published: April 1, 2025
Language: Английский
Citations
0
Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)
Published: April 30, 2025
Abstract Currently, numerous biomimetic robots inspired by natural biological systems have been developed. However, creating soft with versatile locomotion modes remains a significant challenge. Snakes, as invertebrate reptiles, exhibit diverse and powerful abilities, including prey constriction, sidewinding, accordion locomotion, winding climbing, making them focus of robotics research. In this study, we present snake-inspired robot an initial coiling structure, fabricated using MXene-cellulose nanofiber ink printed on pre-expanded polyethylene film through direct writing technology. The controllable fabrication structure (ICSBot) has achieved theoretical calculations finite element analysis to predict analyze the ICSBot, programmable ICSBot designed fabricated. This functions gripper capable grasping objects complex shapes under near infrared light stimulation. Additionally, it demonstrates multi-modal crawling in various environments, confined spaces, unstructured terrains, both inside outside tubes. These results offer novel strategy for designing fabricating coiling-structured highlight their potential applications smart multifunctional robotics.
Language: Английский
Citations
0
Nano Letters, Journal Year: 2024, Volume and Issue: 24(42), P. 13422 - 13430
Published: Oct. 10, 2024
Optically and magnetically responsive soft actuators are gaining attention for their noncontact actuation, flexibility, remote control capabilities. However, they face challenges in rapidly switching motion postures modes, which limits performance complex environments. We developed bilayer hydrogel based on poly(
Language: Английский
Citations
3