The quasi-Z-source H-bridge grid-connected inverter (QHGCI) is well known with its advantages of the void of shoot-through problem and the high DC-voltage utilization. But the existence of the common-mode leakage current in the power frequency cycle, lower power density and higher thermal stress makes it hardly applicable to the grid-penetrating application. Thus with a purpose to conquer the problem relating to the QHGCI, an innovative transformerless Z-Source photovoltaic grid-connected inverter with coupled inductor coil (TZPGCI-CIC) is proposed. The circuitry topology and an unipolar SPWM strategy are firstly introduced in short. And thereafter the common-mode voltage in the whole working process is derived and evaluated through the detailed operating mode analysis, in which a constant value of it has been theoretically revealed. Lastly, a prototype platform of TZPGCI-CIC is setup and its good performance on leakage current suppression, lower thermal stress are validated with the experimental results.

Magnetoelastic switching in multiferroic nanomagnets with a small voltage is a promising substitute for current charge-based CMOS devices. Here, we study strain-mediated multiferroic majority logic gate by solving Landau-Lifshitz-Gilbert equation and establish an energy- efficient CMOS compatible equivalent circuit analogy to capacitor's I- V characteristics. We can easily simulate nanomagnet logic units using this tool. After that, the circuit is verified by SPICE simulations. Results show that the output voltage polarity is determined by the majority of input voltage polarity with ultralow energy consumption, working similarly to majority logic function. The SPICE circuit model shows ultralow energy consumption because of the conserved dynamic current, which can serve as a promising logic unit, consequently, integrated into large-scale nanomagnetic logic circuits and even a nanomagnetic chip.

Binary Solvent Extraction of Microplastics from a Complex Environmental Matrix.Oluniyi O. Fadare1, Leisha Martin2, Nigel Lascelles1, Jessica T. Myers1, Karl Kaiser3, Wei Xu2, and Jeremy L. Conkle11Department of Physical & Environmental Sciences, Texas A&M University-Corpus Christi, 6300 Ocean Drive, Unit 5892, Corpus Christi, Texas 78412, United States.2Department of Life Sciences, Texas A&M University-Corpus Christi, 6300 Ocean Drive, Unit 5892, Corpus Christi, Texas 78412, United States3Department of Marine and Coastal Environmental Science, Texas A&M University at Galveston, Galveston, TX 77553, United StatesAddress correspondence to Jeremy L. Conkle - Department of Physical and Environmental Sciences, Texas A&M University, Corpus Christi, 6300 Ocean Drive, 78412, Texas, United States. Tel: +1 361.825.2862; Email: jeremy.conkle@tamucc.edu

In this study, Urtica dioica L extract as a stabilizing and reducing agent was utilized to synthesize silver nanoparticles in the aqueous medium. Various techniques containing UV-Vis. spectroscopy, FT-IR spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and Transmission electron microscopy (TEM) were used to characterize the synthesized nanoparticles (AgNPs). On the other hand, the MTT assay was run to evaluate anti lung cancer activity of AgNPs. The uniform spherical morphology ranging from 26.22 to 65.18 nm was detected in the SEM images for the biosynthesized nanoparticles. The crystal size of AgNPs, according to the XRD analysis, was 48.11 nm. In the cellular and molecular part of the recent study, the treated cells with AgNPs@Urtica dioica L were assessed by MTT assay for 48 h about the cytotoxicity and anti-human lung adenocarcinoma properties on normal (HUVEC) and lung adenocarcinoma cell lines i.e. HLC-1, LC-2/ad, and PC-14. The viability of malignant lung cell line reduced dose-dependently in the presence of AgNPs@Urtica dioica L. The IC50 of AgNPs@Urtica dioica L were 201, 108 and 143 µg/mL against HLC-1, LC-2/ad, and PC-14 cell lines, respectively. In the antioxidant test, the IC50 of AgNPs@Urtica dioica L and BHT against DPPH free radicals were 125 and 60 µg/mL, respectively.

The effect of niobium ion with high valence doping on high voltage LiNi0.5Mn1.5O4 materials was investigated. LiNi0.5Mn1.5-xNbxO4 was prepared by doping high-valent niobium ion into LiNi0.5Mn1.5O4 material using the organic assisted combustion method. The experimental samples were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and electrochemical impedance analysis. The experimental results show that the doping with high valence niobium ion change the orientation of the crystal plane growth of spinel particles, and the morphology of these particles change from the octahedral shape before doping to the spherical shape after doping. With the increase of doping amount, the crystal structure changes gradually, resulting in the Li0.96Nb1.01O3 impurity phase. The doping of high valence niobium ion increases the content of Mn3+ in the material, resulting in the appearance of a 4 V discharge platform, and the formation of a 4.7 V and 4 V discharge platform. The doping of Nb can improve the cycling stability of LiNi0.5Mn1.5O4 material, but the specific capacity of the material is reduced.