We use digital holographic microscopy and Mie scattering theory to simultaneously characterize track individual colloidal particles. Each snapshot provides enough information measure a sphere's radius refractive index within 1%, its three-dimensional position with nanometer in-plane precision 10 axial resolution.

Most of the colloidal clusters have been produced from oil-in-water emulsions with identical microspheres dispersed in oil droplets. Here, we present new types binary phase-inverted water-in-oil using various combinations two different colloids several size ratios: monodisperse silica or polystyrene for larger particles and titania nanoparticles smaller particles. Obviously, a better understanding how finite groups self-organize confined geometry may help us control structure matter at...

Monodisperse aqueous emulsion droplets encapsulating colloidal particles were produced in the oil phase, and controlled microwave irradiation of drop phase created spherical crystals by so-called evaporation-induced self-organization particles. Unlike usual crystals, symmetry (or photonic balls) possessed band gaps for normal incident light independent position all over surface. While consolidation an oven took several hours, present microwave-assisted evaporation could reduce time complete...

A simple strategy to tailor the surface of nanoparticles for their specific adsorption and localization at block copolymer interfaces was explored. Gold coated by a mixture low molecular weight thiol end-functional polystyrene (PS-SH) (Mn = 1.5 3.4 kg/mol) poly(2-vinylpyridine) homopolymers (P2VP-SH) 3.0 were incorporated into lamellar poly(styrene-b-2-vinylpyridine) diblock (PS-b-P2VP) 196 kg/mol). library with varying PS P2VP compositions (FPS) high polymer ligand areal chain densities...

Experiments show that bubbles covered with monodisperse polystyrene particles, particle to bubble radius ratios of about 0.1, evolve form faceted polyhedral shapes are stable dissolution in air-saturated water. We perform Surface Evolver simulations and find the particle-covered represents a local minimum energy. At state, Laplace overpressure vanishes, which together positive slope pressure-volume curve, ensures phase stability. The repulsive interactions between particles cause reduction...

Colloidal spheres with unique internal morphologies were prepared by blending symmetrical poly(styrene)-block-poly(butadiene) (PS-b-PB) and polystyrene homopolymer (hPS) in emulsion droplets carrying out subsequent solvent evaporation. We found various unprecedented microphases these spherically confining geometries that depend on the ratio (r) of molecular weight hPS relative to PS block PS-b-PB diameter (D) drop feature spacing (L0) phase-separated periodic domains. In particular, effect...

As non-invasive continuous blood pressure monitoring (NCBPM) has gained wide attraction in the recent decades, many pulse arrival time (PAT) or transit (PTT) based (BP) estimation studies have been conducted. However, most of used small homogeneous subject pools to generate models BP on particular interventions for induced hemodynamic change. In this study, a large open biosignal database from diverse group 2309 surgical patients was analyzed assess efficacy PAT, PTT, and confounding factors...

We report a general method for small aggregates (or clusters) of water-borne colloids inside water-in-oil (W/O) emulsions. First, an aqueous suspension monodisperse polystyrene or silica (SiO2) microspheres was emulsified into polydisperse water droplets on micrometer scales in oil phase and colloidal were produced spontaneously during slow evaporation water. Then, the clusters consolidated by complete removal separated from re-dispersed subsequent fractionation according to number (n)...

In this paper, we demonstrated a unique and simple method for fabricating colloidal particles of complex structures using oil-in-water emulsion droplets as confined geometries. A variety structural motifs were produced binary colloids microspheres polystyrene (PS) or silica nanosized the second component. When PS macromolecules dispersed in droplets, with well-coordinated patches obtained because partially covered microsphere clusters. gold nanoparticles together instead macromolecules,...

Although various predictors and methods for BP estimation have been proposed, differences in study designs led to difficulties determining the optimal method. This presents analyses of using 2.4 million cardiac cycles two commonly used non-invasive biosignals, electrocardiogram (ECG) photoplethysmogram (PPG), from 1376 surgical patients. Feature selection were determine best subset a total 42 including PAT, heart rate (HR), PPG morphology features, models constructed linear regression (LR),...

Reconstructing a standard 12-lead electrocardiogram (ECG) from signals received electrodes packed into patch-type device is challenging task in the field of medical instrumentation. All attempts to obtain clinically valid ECG using were not satisfactory. In this study, we designed hardware for three-lead and employed long short-term memory (LSTM) network that can overcome limitations linear regression algorithm used reconstruction. The LSTM issue reduced horizontal components vector electric...

In this study, we demonstrate the surfactant-assisted synthesis of uniform-sized titania microspheres and their clusters for highly responsive optical materials. Monodisperse titanium glycolate were produced by controlled hydrolysis glycolated butoxide in acetone using surfactant as a stabilizer. The diameter as-prepared particles ranged from 230 to 650 nm was finely changing concentrations surfactant. particular, tunable range particle size at few tens nanometers scale concentration, which...

Onionlike block copolymer particles containing a well-ordered gold nanoparticle array were prepared with the help of amphiphilic used as surfactant. The location nanoparticles ordered in specific position domain was systematically investigated by tuning invariant polymerization index and areal chain density (Σ) nanoparticles.

Photoplethysmography (PPG) has become ubiquitous with the development of smart watches and mobile healthcare market. However, PPG is vulnerable to various types noises that are ever present in uncontrolled environments, key obtaining meaningful signals depends on successful denoising PPG. In this context, algorithms have been developed denoise PPG, but many were validated controlled settings or reliant multiple steps must all work correctly. This paper proposes a novel algorithm based...

Templates for helix-structured silica microtubulesare generated by subjecting worm-shaped micelles of cetyltrimethylammonium bromide to so-called Taylor vortex flow conditions between a rotating and stationary cylinder at controlled speed. Silica deposition from TEOS template dissolution produce helical tubules about 100 nm in diameter few micrometers long (see Figure), potentially useful chiral catalysis or optical applications.

Non-invasive continuous blood pressure monitors are of great interest to the medical community due their value in hypertension management. Recently, studies have shown potential pulse as a therapeutic target for hypertension, but not enough attention has been given non-invasive monitoring pressure. Although accurate estimation can be direct management and indirectly systolic pressure, it is sum diastolic only few inadequate methods proposed. We present novel, method based on transit time...

Soft reduction technology is known to be the best way minimize center segregation through compensation of negative pressure by shrinkage cavity. The crater end positions were investigated pin shoting, surface temperature measurements and numerical analysis heat transfer. Based on results, soft was applied No. 2 CC plant for wide slab at Pohang Works POSCO reducing roll gaps in a specific zone ratio ranged from 0.5 0.76 mm/m. delayed solidification region 300 mm away edge, where about 30°C...

As an increasing number of people suffer from sleep disorders, such as insomnia or apnea, monitoring and management using consumer devices have gained attention research communities. quality is closely related to structure based on hypnograms, the classification stages over course night important for accurate monitoring. We present stage a smartphone equipped with ultra-wideband (UWB) radar. focused development easily accessible system general population by placing table near bed, which...

We demonstrated a multiple-exposure holographic lithography with phase shift. The shift was utilized to translate two-dimensional (2D) and three-dimensional (3D) interference patterns. multiple exposure of the patterns controlled created partially overlapped patterns, resulting in 2D 3D polymer lattices shape-anisotropic atoms. This approach can be used design directly unit atoms periodic for tunable optical properties.

Here, we demonstrate the preparation of a hybrid nanoplasmonic probe array, nanoforest, which consists gold nanostructures coated on top silica nanospheres and evaporated film structure onto bottom through masks. Optically tunable plasmonic surfaces could be achieved by varying nanoforest fabrication conditions, acted as selective nanoantenna. Plasmon coupling effects were effectively controlled adjusting vertical distance (nanogap) between bead bottom. Such control is critical to highly...

Continuous blood pressure (BP) monitoring in daily life is needed to enable early detection of hypertension and improve its control. Although pulse transit time (PTT)-based BP estimation represents a promising approach, it still lacks performance systolic (SBP) use limited owing the requirement bulky systems for measurement PTT. This study aims at developing wearable system providing continuous PTT enhanced SBP monitoring. A single chest-worn device was developed, which measures...