Fiber‐Integrated Force Sensor using 3D Printed Spring‐Composed Fabry‐Perot Cavities with a High Precision Down to Tens of Piconewton

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(2)

Published: Nov. 21, 2023

Abstract Developing microscale sensors capable of force measurements down to the scale piconewtons is fundamental importance for a wide range applications. To date, advanced instrumentations such as atomic microscopes and other specifically developed micro/nano‐electromechanical systems face challenges high cost, complex detection poor electromagnetic compatibility. Here, it presents unprecedented design 3D printing general fiber‐integrated using spring‐composed Fabry‐Perot cavities. It calibrates these devices employing varied‐diameter m‐scale silica particles standard weights. The sensitivity resolution reach values (0.436 ± 0.007) nmnN ‐1 (40.0 0.7) pN, respectively, which are best resolutions among all fiber‐based nanomechanical probes so far. also measured non‐linear airflow distributions produced from nozzle with an orifice 2 m, matches well full‐sized simulations. With further customization their geometries materials, anticipates easy‐to‐use probe can extend many applications air/fluidic turbulences sensing, micro‐manipulations, biological sensing.

Language: Английский

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Recent Progress of the Vat Photopolymerization Technique in Tissue Engineering: A Brief Review of Mechanisms, Methods, Materials, and Applications

Polymers, Journal Year: 2023, Volume and Issue: 15(19), P. 3940 - 3940

Published: Sept. 29, 2023

Vat photopolymerization (VP), including stereolithography (SLA), digital light processing (DLP), and volumetric printing, employs UV or visible to solidify cell-laden photoactive bioresin contained within a vat in point-by-point, layer-by-layer, manner. VP-based bioprinting has garnered substantial attention both academia industry due its unprecedented control over printing resolution accuracy, as well rapid speed. It holds tremendous potential for the fabrication of tissue- organ-like structures field regenerative medicine. This review summarizes recent progress VP fields tissue engineering First, it introduces mechanism photopolymerization, followed by an explanation technique commonly used biomaterials. Furthermore, application was discussed. Finally, challenges facing are discussed, future trends projected.

Language: Английский

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Three Dimensional Printing and Its Applications Focusing on Microneedles for Drug Delivery

Pharmaceutics, Journal Year: 2023, Volume and Issue: 15(6), P. 1597 - 1597

Published: May 25, 2023

Microneedles (MNs) are considered to be a novel smart injection system that causes significantly low skin invasion upon puncturing, due the micron-sized dimensions pierce into painlessly. This allows transdermal delivery of numerous therapeutic molecules, such as insulin and vaccines. The fabrication MNs is carried out through conventional old methods molding, well newer more sophisticated technologies, three-dimensional (3D) printing, which superior, accurate, time- production-efficient method than methods. Three-dimensional printing becoming an innovative used in education building intricate models, being employed synthesis fabrics, medical devices, implants, orthoses/prostheses. Moreover, it has revolutionary applications pharmaceutical, cosmeceutical, fields. Having capacity design patient-tailored devices according their dimensions, along with specified dosage forms, allowed 3D stand field. different techniques allow for production many types needles materials, hollow solid MNs. review covers benefits drawbacks 3D-printed MNs, characterization general using

Language: Английский

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Light and matter co-confined multi-photon lithography

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: March 16, 2024

Mask-free multi-photon lithography enables the fabrication of arbitrary nanostructures low cost and more accessible than conventional lithography. A major challenge for is to achieve ultra-high precision desirable lateral resolution due inevitable optical diffraction barrier proximity effect. Here, we show a strategy, light matter co-confined lithography, overcome issues via combining photo-inhibition chemical quenchers. We deeply explore quenching mechanism photoinhibition multiphoton Besides, mathematical modeling helps us better understand that synergy quencher can gain narrowest distribution free radicals. By using 30 nm critical dimension 100 resolution, which further decrease gap with

Language: Английский

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Realization of high-performance optical metasurfaces over a large area: a review from a design perspective

Deleted Journal, Journal Year: 2024, Volume and Issue: 1(1)

Published: Aug. 30, 2024

Abstract Remarkable advancements have been made in the design of optical metasurfaces recent years, particularly compact designs. However, for their practical integration into diverse systems, there is a pressing need to transition toward larger areas without compromising performance. From perspective, efforts process must focus on reducing computational costs and enhancing performance areas. In this review, we introduce analyses applicable wide areas, including modification boundary conditions, fast multipole methods, coupled mode theory, neural network–based approaches. addition, inverse methods based adjoint method or deep learning, which are suitable large-scale designs, described. Numerous accurate simulation make it possible assess properties over large at low cost, whereas hold promise high By concurrently addressing both essential aspects designing large-area metasurfaces, comprehensively discuss various approaches develop with expansive regions. Finally, outline additional challenges prospects realizing mass-produced high-performance unlocking full potential applications.

Language: Английский

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