Porous carbons with nitrogen-doped (N-doped) structures are promising materials for advanced energy conversion and storage applications, including supercapacitors fuel cell catalysts. In this study, microporous N-doped carbon was successfully fabricated through carbonization of covalent organic frameworks (COFs) an azine-linked two-dimensional molecular network (ACOF1). the carbonized ACOF1, micropores diameters smaller than 1 nm selectively formed, a high specific surface area (1596 cm2 g-1...

We present two new cyanine-based NIR fluorescent probes for imaging GSH in living cells and tumor-bearing mice.

With the development of Internet Things (IoT), indoor photovoltaics are attracting considerable interest owing to their potential benefit various IoT-related fields. Therefore, this study investigates use transparent hydrogenated amorphous silicon (a-Si:H) solar cells for a broad range applications, including light harvesting. High-gap triple layers were employed in a-Si:H obtain high shunt resistance and short-circuit current, JSC, open-circuit voltage, VOC, under illumination....

In this study, intense single-band red-emitting upconversion nanophosphors (UCNPs) excited with 800 nm near-infrared (NIR) light are reported. When a NaYF4:Nd,Yb active-shell is formed on the 12.7 sized NaGdF4:Yb,Ho,Ce UCNP core, core/shell (C/S) UCNPs show tunable emission from green to red, depending Ce3+ concentration under excitation NIR light. Ce3+-doped C/S (30 mol %) exhibit red peaking at 644 via 5F5 → 5I8 transition of Ho3+. A high Nd3+ in shell results strong absorption around...

In this study, novel 800 nm-excitable and highly intense green-emitting non-NaY(Gd)F4-based core/shell/shell (CSS) upconversion nanophosphors (UCNPs) are reported. Scheelite-structured Li(Gd,Y)F4:Yb,Er core UCNPs synthesized, followed by the formation of a Nd3+-doped active shell inert shell, Li(Gd,Y)F4:Yb,Er/LiYF4:Nd,Yb/LiGdF4 CSS applied to liver cancer cell-targeted luminescence imaging. X-ray diffraction electron energy loss spectroscopy confirm that single tetragonal phase...

We report room-temperature synthesis of a covalent organic framework (COF) using the combination benzene-1,3,5-tricarbaldehyde and 1,4-phenylenediamine. The method is quite simple obtained COF was revealed to have high surface area thermal stability due its crystallinity compared that synthesized by conventional solvothermal synthetic same monomer combination. also nitrogen-doped graphite based on carbonization COF.

Segmentation of the prostate and surrounding organs at risk from computed tomography is required for radiation therapy treatment planning. We propose an automatic two-step deep learning-based segmentation pipeline that consists initial multi-organ network organ localization followed by organ-specific fine segmentation.

In this study, the back passivation layers (BPLs) were developed to protect hydrogenated amorphous silicon (a-Si:H) thin films of transparent solar cells from humidity and contaminants. Metal oxide compound with Al (Al2O3) Ti (AlxTiyOz (ATO)) fabricated by plasma-enhanced atomic layer deposition for BPLs on cells. The Al2O3 applied deposited in different thicknesses evaluate performance, ATO film thickness was fixed at 30 nm. Even thinnest nm, water vapor transmission rates very low 1.96 ×...

Indocyanine green (ICG) is a clinically approved dye that has shown great promise as phototheranostic material with fluorescent, photoacoustic and photothermal responses in the near-infrared region. However, it certain limitations, such poor photostability non-specific binding to serum proteins, subjected rapid clearance decreased theranostic efficacy vivo. This study reports stable biocompatible nanoparticles of ICG (ICG-Fe NPs) where electrostatically complexed an endogenously abundant...

This article reports photoinduced solubility modulation in copolymer thin films derived from spiropyranyl, perfluoroalkyl, and isobornyl methacrylates. A random of spiropyranyl methacrylate (SPMA) 1H,1H,2H,2H-perfluorooctyl (FOMA) was first prepared the absence (IBMA). The resulting as-prepared film could be dissolved highly fluorinated or fluorous solvents but became insoluble following exposure to UV light (λ = 365 nm) via photoisomerization transformation spiropyran units into merocyanine...

Abstract Nanoporous carbons with well-defined pore structures are promising for advanced energy applications. Herein, we fabricate nitrogen-doped porous via direct carbonization of a triazine-based covalent organic framework (TACOF1) that acts as both intrinsic template and carbon/nitrogen source. The carbonized TACOF1 forms carbon has large surface area (1194 m2 g−1) comprised high volumes micro- meso-pores (0.58 cm3 g−1 0.44 g−1, respectively) narrow size distribution. In addition,...

A new concept of a tunneling oxide-free nonvolatile memory device with deep trap interface floating gate is proposed. This demonstrates high on/off current ratio 107 and sizable window due to traps at the between channel dielectric layers. Interestingly, irradiation 400 nm light can completely restore program state initial one (performing an erasing process), which attributed visible light-sensitive layer. Device reproducibility enhanced by selectively passivating shallow using in situ H2...

Abstract We synthesized an amphiphilic small molecule 1 by attaching oligo(ethylene glycol) (OEG) and N , ‐diethylamine (DEA) units to a fluorescent dicyanodistyrylbenzene (DCS) core. The is fully soluble in aqueous solution at low pH (pH<4.3) protonation of the DEA groups; but, above 4.3, it self‐assembles form nanoparticles due increased hydrophobicity upon deprotonation, leading ratiometric fluorescence color change from green emission monomeric (λ em,max =538 nm) red aggregated =646...

Chemotherapy is the most widely used cancer treatment, but it has several drawbacks such as adverse side effects and low bioavailability. To address these limitations, various drug delivery systems have been investigated, including liposomes, micelles, emulsions. These technologies improving efficacy safety of conventional chemotherapy. This study presents an emerging technology for targeted chemotherapy using drug-loaded ultrasound-responsive emulsion (URE) a carrier ultrasound external...

Thiabendazole (TBZ) is a benzimidazole; owing to its potent antimicrobial properties, TBZ extensively employed in agriculture as fungicide and pesticide. However, poses environmental risks, excessive exposure through various leakage pathways can cause adverse effects humans. Therefore, method must be developed for early sensitive detection of over range concentrations, considering both human perspectives. In this study, we used silver nanopillar structures (SNPis) Au@Ag bimetallic...

Interstitial brachytherapy is widely used for cervical cancer treatment. Accurate image-guidance of needle insertion should include delineation the target tumor and organs-at-risk (OARs), real-time visualization each tip as it advanced towards target. While CT MRI are typically treatment planning, they not readily available intraoperative image-guidance. Lack robust means to visualize needles along with patient's anatomy during procedure poses challenges in accurate placement. Furthermore,...

To reduce the manufacturing cost of polymer electrolyte membrane fuel cells (PEMFCs), tests targeting decrease reaction temperature and amount reducing agent in polyol method for synthesis Pt/C catalysts were conducted. The was changed from 50 to 160 °C. Through XRD TGA, it determined that reduction platinum ions by oxidation ethylene glycol started at 70 Below a 60 °C temperature, Pt (1 1 1) peaks barely visible, indicating no deposition occurred. TEM revealed particles well-dispersed above...