Results 311 to 320 of about 683,980 (395)

Wearable Hyperspectral Photoplethysmography Allows Continuous Monitoring of Exercise‐Induced Hypertension

open access: yesAdvanced Science, EarlyView.
A wearable hyperspectral photoplethysmography (HS‐PPG) is reported for continuous blood pressure (BP) monitoring. The HS‐PPG module integrates an ultrathin double‐folded solid immersion grating microspectrometer (DFSIG‐µSPEC), achieving a high spectral resolution of 3.4 nm.
Jung‐Woo Park   +8 more
wiley   +1 more source

Electrically Tunable Momentum Space Polarization Singularities in Liquid Crystal Microcavities

open access: yesAdvanced Science, EarlyView.
Using a highly birefringent material embedded in a liquid crystal microcavity, the Rashba‐Dresselhaus resonance is obtained. In this regime, polarization singularities, known as C‐points, are observed in momentum space. The positions of these singularities can be modified by applying an external voltage to the sample.
Przemysław Oliwa   +12 more
wiley   +1 more source

Novel Electroactive Therapeutic Platforms for Cardiac Arrhythmia Management

open access: yesAdvanced Science, EarlyView.
Electroactive platforms offer promising applications in cardiac arrhythmia. Based on their energy sources and mechanisms, electroactive platforms are categorized into i) direct electrical stimulation, ii) self‐powered electroactive systems, iii) physical stimuli‐mediated electroactive systems, and iv) conductive systems, and their applications in ...
Juwei Yang   +4 more
wiley   +1 more source

Particle‐Assisted Optoelectronic Tweezers for Manipulating Single Cells and Microparticles

open access: yesAdvanced Science, EarlyView.
This work introduces a particle‐assisted optoelectronic tweezers (OET) technique that uses Ag‐SiO2 microparticles as intermediaries to manipulate cells and microparticles via particle‐induced dielectrophoresis. The method extends the OET manipulation range while reducing cell damage.
Ao Wang   +13 more
wiley   +1 more source

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