Real-Time Differentiation Between Benign and Malignant Breast Tumors and Other Tissues Using Dielectric Properties.

BACKGROUND This study aimed to investigate the dielectric property differences between benign and malignant breast nodules ex vivo, as well as between normal and tumor-bearing skin in vivo, and between normal and cancerous metastatic lymph nodes. The goal was to explore a method for the intraoperative and rapid real-time identification of benign and malignant tissues. MATERIAL AND METHODS The breast tumor or lymph node tissues from 97 patients and 20 nude mice with subcutaneous breast cancer tumor models were analyzed using an open-ended coaxial radio frequency wave device, with frequencies ranging from 10 MHz to 4 GHz.

CCL7 promotes macrophage polarization and synovitis to exacerbate rheumatoid arthritis.

Chemokine C-C motif ligand 7 (CCL7) is implicated in various immune and inflammatory processes; however, its role in rheumatoid arthritis (RA) remains unclear. In this study, we observed that CCL7 expression was upregulated in synovial M1-polarized macrophages and in the serum of RA mice and patients. CCL7 was found to promote macrophage polarization toward the M1 phenotype while inhibiting M2 differentiation .

Oxygen-Assisted Tailoring of Evaporated PbS Hole Transport Layer for Highly Efficient Antimony Sulfide Solar Cells.

Antimony sulfide (SbS) is regarded as one of the potential candidates for the next generation of photovoltaic absorber due to its excellent photoelectric properties. However, the selection and optimization of the hole transport layer (HTL) is still a major challenge for efficiency breakthrough of the SbS solar cells. In this work, lead sulfide (PbS) is deposited as a HTL of the SbS device by thermal evaporation for the first time.

Effects of Mn doping on electronic and quantum transport in PbPdO thin films.

PbPdO, a gapless semiconductor, can be transformed into a spin gapless semiconductor structure by magnetic ion doping. This unique band-gap structure serves as the foundation for its distinctive physical properties. In this study, PbPdMnO ( = 0.

Magnetic Field Modulation Effect of Photoelectric Properties in Dye-sensitized Solar Cells with La(Ca,Ba)MnO as Counter Electrodes.

Background: In recent years, many semiconductor materials with unique band structures have been used and also pursued patent protection as Pt counter electrode (CE) substitutes for dyesensitized solar cells (DSSCs), which makes the photoelectric properties of DSSCs possible to be modulated by electric field, magnetic field, and light field. In this work, La(Ca,Ba)MnO (LCBMO) thin film is employed to act as CE in DSSCs.

Methods: The experimental results indicate that short-circuit current density and photoelectric conversion efficiency present better stability when applying an external magnetic field to the DSSCs.

Zn(O,S) Buffer Layer for in Situ Hydrothermal SbS Planar Solar Cells.

Hydrothermal deposition is emerging as a highly potential route for antimony-based solar cells, in which the Sb(S,Se) is typically in situ grown on a common toxic CdS buffer layer. The narrow band gap of CdS causes a considerable absorption in the short-wavelength region and then lowers the current density of the device. Herein, TiO is first evaluated as an alternative Cd-free buffer layer for hydrothermally derived SbS solar cells.

Highly oriented GeSe thin film: self-assembly growth via the sandwiching post-annealing treatment and its solar cell performance.

GeSe is considered as a potential absorber material for thin film solar cells owing to its ideal band gap, strong light absorption, remarkable air durability, Earth-abundance and non-toxic constituents. However, the high vapor pressure of GeSe at a temperature below its melting point makes it difficult to synthesize a high-quality GeSe film. To alleviate this limitation, in this work, a thermal evaporation combining a novel sandwiching post-annealing method was introduced to deposit high quality GeSe thin films with (100)-orientation.

The influences of V and Gd dopants on the structures and electrical and magnetic properties of PbPdO thin films.

PbPdO, PbPdVO and PbPdGdO thin films with body-centered orthorhombic structure were prepared by PLD technique, respectively. Their structures, magnetic and electrical properties were measured by XRD, SEM, AFM, EDS, XPS and VSM, respectively. The experimental results indicate that the three samples all have the preferred orientation of (002), and room temperature ferromagnetism.

Non-Volatile Ferroelectric Switching of Ferromagnetic Resonance in NiFe/PLZT Multiferroic Thin Film Heterostructures.

Magnetoelectric effect, arising from the interfacial coupling between magnetic and electrical order parameters, has recently emerged as a robust means to electrically manipulate the magnetic properties in multiferroic heterostructures. Challenge remains as finding an energy efficient way to modify the distinct magnetic states in a reliable, reversible, and non-volatile manner. Here we report ferroelectric switching of ferromagnetic resonance in multiferroic bilayers consisting of ultrathin ferromagnetic NiFe and ferroelectric Pb0.

Study of magnetic dynamic properties for magnetic cluster and quantum dots with hexagonal array.

Based on the Monte-Carlo simulation, magnetic dynamic properties of magnetic clusters and quasi two-dimensional quantum dots with hexagonal lattice arrays have been calculated. It has been found that the saturation fields for the cluster and quantum dot increase with increasing dipolar interaction. However, hysteresis loops of the quantum dots are different from those in clusters.