Results 51 to 60 of about 116,034 (277)

i-PHAOS: An Overview with an Open-Source Collaborative Database on Miniaturized Integrated Spectrometers

open access: yesSensors
On-chip spectrometers are increasingly becoming tools that might help in everyday life needs. The possibility offered by several available integration technologies and materials to be used to miniaturize spectrometers has led to a plethora of very ...
Carla Maria Coppola   +3 more
doaj   +1 more source

New Era of Electroceuticals: Clinically Driven Smart Implantable Electronic Devices Moving towards Precision Therapy

open access: yesMicromachines, 2022
In the name of electroceuticals, bioelectronic devices have transformed and become essential for dealing with all physiological responses. This significant advancement is attributable to its interdisciplinary nature from engineering and sciences and also
RaviPrakash Magisetty, Sung-Min Park
doaj   +1 more source

Chaos controller for switching regulators aiming enhanced design-space towards miniaturization [PDF]

open access: yes, 2014
This paper tackles the control of fast-scale instabilities in a buck switching power converter aiming to expand its design-space towards miniaturization.
Alarcón Cot, Eduardo José   +4 more
core   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Force-Guiding Particle Chains for Shape-Shifting Displays

open access: yes, 2014
We present design and implementation of a chain of particles that can be programmed to fold the chain into a given curve. The particles guide an external force to fold, therefore the particles are simple and amenable for miniaturization.
Lasagni, Matteo, Römer, Kay
core   +1 more source

Double Helical Plasmonic Antennas

open access: yesAdvanced Functional Materials, EarlyView.
Plasmonic double helical antennas funnel circularly polarized light to the nanoscale, offering strong chiroptical interaction and directional light emission. Extending a single helix design tool, this study combines numerical modeling with experimental validation, revealing large, broadband dissymmetry factors in the visible range.
Aleksei Tsarapkin   +7 more
wiley   +1 more source

Narrowband SIW-SSPP Hybrid Bandpass Filter With Compact Profile at Ka-Band

open access: yesIEEE Access, 2023
In this paper, a narrowband bandpass filter comprising substrate integrated waveguide (SIW) and spoof surface plasmon polaritons (SSPPs) is proposed, achieving miniaturization and low insertion loss at Ka-band. SIWs and SSPPs exhibit low and high cut-off
Baoqing Zhang   +11 more
doaj   +1 more source

Multifrequency and multifunction antennas based on single printed technology partially filled with metamaterial structures [PDF]

open access: yes, 2008
The Radiofrequency Group from the Escuela Politécnica Superior of the Carlos III University from Madrid have been working in printed antennas for a long time. Recently the new technology of metamaterials has opened new possibilities in the development of
Segovia Vargas, Daniel
core   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

open access: yesAdvanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin   +7 more
wiley   +1 more source

In-Situ Measurements in Microscale Gas Flows—Conventional Sensors or Something Else?

open access: yesMicromachines, 2019
Within the last few decades miniaturization has a driving force in almost all areas of technology, leading to a tremendous intensification of systems and processes.
Juergen J. Brandner
doaj   +1 more source

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