Results 11 to 20 of about 52,290 (257)

Iontophoresis-driven microneedle patch for the active transdermal delivery of vaccine macromolecules

open access: yesMicrosystems & Nanoengineering, 2023
COVID-19 has seriously threatened public health, and transdermal vaccination is an effective way to prevent pathogen infection. Microneedles (MNs) can damage the stratum corneum to allow passive diffusion of vaccine macromolecules, but the delivery ...
Ying Zheng   +8 more
doaj   +1 more source

Error Modeling and Calibration for Encoded Sun Sensors [PDF]

open access: yesSensors, 2013
Error factors in the encoded sun sensor (ESS) are analyzed and simulated. Based on the analysis results, an ESS error compensation model containing structural errors and fine-code algorithm errors is established, and the corresponding calibration method for model parameters is proposed.
Fan, Qiaoyun   +4 more
openaire   +3 more sources

Smartphone-powered iontophoresis-microneedle array patch for controlled transdermal delivery

open access: yesMicrosystems & Nanoengineering, 2020
Smartphone-powered drug delivery device A device developed by researchers in China uses a microneedle array to efficiently and painlessly deliver precise doses of insulin and can be used by patients without help from medical staff.
Jingbo Yang   +7 more
doaj   +1 more source

Magneto‐Responsive Shutter for On‐Demand Droplet Manipulation

open access: yesAdvanced Science, 2021
Magnetically responsive structured surfaces enabling multifunctional droplet manipulation are of significant interest in both scientific and engineering research.
Jian Wang   +7 more
doaj   +1 more source

Fabrication of a Micro-Needle Array Electrode by Thermal Drawing for Bio-Signals Monitoring

open access: yesSensors, 2016
A novel micro-needle array electrode (MAE) fabricated by thermal drawing and coated with Ti/Au film was proposed for bio-signals monitoring. A simple and effective setup was employed to form glassy-state poly (lactic-co-glycolic acid) (PLGA) into a micro-
Lei Ren   +5 more
doaj   +1 more source

Fabrication of Flexible Microneedle Array Electrodes for Wearable Bio-Signal Recording

open access: yesSensors, 2018
Laser-direct writing (LDW) and magneto-rheological drawing lithography (MRDL) have been proposed for the fabrication of a flexible microneedle array electrode (MAE) for wearable bio-signal monitoring.
Lei Ren   +7 more
doaj   +1 more source

Fabrication of Magnetic Nanofibers by Needleless Electrospinning from a Self-Assembling Polymer Ferrofluid Cone Array

open access: yesNanomaterials, 2017
Magnetic nanofiber has been widely applied in biomedical fields due to its distinctive size, morphology, and properties. We proposed a novel needleless electrospinning method to prepare magnetic nanofibers from the self-assembling “Taylor cones” of poly ...
Weilong Huang   +8 more
doaj   +1 more source

Rapid and Sensitive Diagnosis of COVID-19 Using an Electricity-Free Self-Testing System

open access: yesBiosensors, 2023
Rapid and sensitive detection of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is essential for early diagnosis and effective treatment.
Sheng Li   +7 more
doaj   +1 more source

OPTIMIZATION OF A SUN VECTOR DETERMINATION FOR PINHOLE TYPE SUN SENSOR

open access: yesInternational Journal of Research -GRANTHAALAYAH, 2017
The sun vector is commonly used for defining a satellite attitude and many types of sensors exist for its determination. An attitude determination system is designed for each satellite project based on missions’ requirements. A fine pinhole sun sensor type was chosen and designed for HORYU-IV nanosatellite of Kyushu Institute of Technology. This sensor
Faizullin, Dmytro   +3 more
openaire   +3 more sources

Fabrication of Micro-Needle Electrodes for Bio-Signal Recording by a Magnetization-Induced Self-Assembly Method

open access: yesSensors, 2016
Micro-needle electrodes (MEs) have attracted more and more attention for monitoring physiological electrical signals, including electrode-skin interface impedance (EII), electromyography (EMG) and electrocardiography (ECG) recording.
Keyun Chen   +5 more
doaj   +1 more source

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