Abstract In recent years, inorganic/organic hybrid solar cell concept has received growing attention for alternative energy solution because of the potential facile and low-cost fabrication high efficiency. Here, we report highly efficient cells based on silicon nanowires (SiNWs) poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) using transfer-imprinted metal mesh front electrodes. Such a structure increases optical absorption shortens carrier transport distance, thus, it...

Photoacoustic computed tomography (PACT) has become a premier preclinical and clinical imaging modality. Although PACT's image quality can be dramatically improved with large number of ultrasound (US) transducer elements associated multiplexed data acquisition systems, the high system cost and/or slow temporal resolution are significant problems. Here, deep learning-based approach is demonstrated that qualitatively quantitively diminishes limited-view artifacts reduce improves resolution....

Photoacoustic computed tomography (PACT), an emerging imaging modality in preclinical cancer research, can provide multiparametric 3D information about structures, physiological functions, and pharmacokinetics. Here, we demonstrate the use of high-definition PACT both primary metastatic tumors living mice to noninvasively monitor angiogenesis, carcinogenesis, hypoxia, The system with a 1024-element hemispherical ultrasound transducer array provides isotropic spatial resolution 380 μm,...

ABSTRACT Rigid amphipathic fusion inhibitors (RAFIs) are lipophilic inverted-cone-shaped molecules thought to antagonize the membrane curvature transitions that occur during virus-cell and broad-spectrum antivirals against enveloped viruses (Broad-SAVE). Here, we show RAFIs act like membrane-binding photosensitizers: their antiviral effect is dependent on light generation of singlet oxygen ( 1 O 2 ), similar mechanistic paradigm established for LJ001, a chemically unrelated class Broad-SAVE....

Abstract A highly stretchable and reliable, transparent conductive entangled graphene mesh network (EGMN) exhibits an interconnected percolation network, as usually shown in 1D nanowires, but with the electrical, mechanical, thermal properties of 2D graphene. The unique combination material structure wrinkled, waved, crumpled enables EGMN to demonstrate excellent electrical reliability, mechanical durability, stability, even under harsh environmental external conditions such very high...

In this study, we introduce a sensing platform based on plasmonic metamaterial absorbers (MAs) with dielectric nanopedestals for the ultrasensitive detection of monolayer biomolecules. MAs nanopedestals, which allow access to extremely high near-field intensities forming top and bottom nanoantennas that further enhance molecular signals, consist cross-shaped gold (Au) an Au layer as mirror layer. The characteristics are compared control using unetched spacer. To provide strong coupling...

Abstract N‐type metal oxides such as hematite (α‐Fe 2 O 3 ) and bismuth vanadate (BiVO 4 are promising candidate materials for efficient photoelectrochemical water splitting; however, their short minority carrier diffusion length restricted lifetime result in undesired rapid charge recombination. Herein, a 2D arranged globular Au nanosphere (NS) monolayer array with highly ordered hexagonal hole pattern (hereafter, array) is introduced onto the surface of photoanodes comprised oxide films...

To evaluate the influence of placement angle and direction orthopedic force application on stability miniscrews.Finite element analysis was performed using miniscrews inserted into supporting bone at angles 90°, 60°, 30° (P90°, P60°, P30°). An heavy 800 gf applied to heads in four upward (U0°, U30°, U60°, U90°) or lateral (L0°, L30°, L60°, L90°) directions. In addition, pull-out strength measured with various directions cortical thicknesses.Miniscrews a (P30°) 60° (P60°) showed significant...

PurposeCoronary artery disease (CAD) is a leading cause of morbidity and mortality worldwide, with coronary computed tomography angiography (CCTA) playing crucial role in its diagnosis. The mean Hounsfield unit (HU) pericoronary adipose tissue (PCAT) linked to cardiovascular risk. We utilized self-supervised learning framework (SSL) improve the accuracy generalizability segmentation on CCTA volumes while addressing limitations small-annotated datasets.ApproachWe pretraining followed by...

A novel ultraviolet (UV)-assisted imprinting procedure that employs photosensitive titanium(IV) di-n-butoxide bis(2-ethylhexanoate) is presented for the fabrication of well-ordered titanium dioxide (TiO2) nanostructures at room temperature. The main novelty this technique use organic compound, rather than a commonly used UV-curable resin, direct UV-assisted nanoimprint lithography. Fourier transform infrared and X-ray photoelectron spectroscopy studies suggest exposure to UV light resulted...

Abstract To understand complex biological process and disease progression, it is essential to comprehensively track biodynamics across entire organisms. The invaluable tracking tool, photoacoustic computed tomography (PACT), provides insights into structural, functional, molecular aspects of living tissues. However, current small‐animal PACT systems suffer from low temporal/spatial resolution a restricted field view, they are limited in the information can provide, hindering research on...

In this study, the authors report for first time a wafer‐scale method fabricating vertical‐aligned silicon nanotubes (SiNTs) on substrate using combination of nanoimprint lithography (NIL) and metal‐assisted chemical etching (MaCE) processes. The structural properties adhesion strength characteristics prepared SiNTs are investigated via field emission scanning electron microscope (FE‐SEM), transmission (TEM) analysis, test. And, successfully demonstrate feasibility fabricated in Li‐ion...

On the basis of a tight binding system-bath model, we investigated carrier mobility PbSe nanocrystal (NC) arrays as function NC size and inter-NC separation. The size-dependent trend calculated mobilities are in excellent agreement with recent experimental measurements: electron increased up to diameter ∼6 nm then decreased for larger NCs, whereas hole showed monotonic size-dependency. Carrier increase was associated reduced activation energy that governs charge-transfer processes. In...

An infrared plasmonic metamaterial absorber with a nanogap was numerically and experimentally investigated as refractive index sensor. We demonstrated large enhancements of both sensitivity (approximately 1091 nm/refractive unit) figure merit (FOM*; approximately 273) owing to the formation in achieve perfect absorption (99%). The sensing platform fabricated by producible nanoimprint lithography isotropic dry etching processes have area low cost while providing practical solution for...

We present a direct metal patterning method by two-step transfer printing process of non-particle, ionic nano-ink solution. This fabrication allows simple various micro/nanoscale metallic structures. Complex structures such as multilayer line arrays, patterns along non-flat topologies, and hybrid can be achieved using this process. Also, the low temperature pressure conditions are compatible with electronic devices on flexible substrates polyimide film photographic papers. As an application...

For a nanoplasmonic approach of wearable biochip platform, understanding correlation between near‐field enhancement on nanostructures and sensing capability is crucial step to improve the sensitivity in biosensing. A novel effective method demonstrated increase with enhanced electric fields reduce noise targeted functionalization enabled by transferring side edge prefunctionalized (SEPF) nanostructure arrays onto flexible substrates. Nanostructure sidewalls have selective biochemically...

Abstract We report a sensing platform for surface-enhanced infrared absorption (SEIRA) spectroscopy, based on Fano metamaterials (FMMs) dielectric nanopedestals. FMMs consist of two parallel gold (Au) nanorod antennas, with small horizontal coupler attached to one the antenna. When placed SiO 2 nanopedestals, which exhibit strong field enhancements caused by interference between subradiant and superradiant plasmonic resonances, they provide highly enhanced E-field intensities formed near Au...

Abstract Silicon nanowires (SiNWs) for use as lithium‐ion battery (LIB) anode materials have been studied their one‐dimensional (1D) properties and ability to accommodate large volume changes avoid rapid capacity fading during cycling. Although the vertical transfer of SiNWs from original substrate onto a conducting electrode is very important, date, there has no report direct integration method without polymer binders. Here, we propose first time grown on Si directly current‐collecting...

Biocompatible adhesive films are important for many applications (e.g., wearable devices, implantable and attachable sensors). In particular, achieving self-adhesion on one side of a film with biocompatible materials is compelling goal in adhesion science. Herein, we report simple easy manufacturing process using water-soluble hyaluronic acid (HA) that allows adhesiveness only binary polymer mixtures based phase-separation strategy an elastomer. HA influx the entangled chains elastomer to...