Biosynthesis of selenium nanoparticles as a potential therapeutic agent in breast cancer: G2/M arrest and apoptosis induction.

The drawbacks and adverse reactions of conventional breast cancer (BC) medications have prompted researchers to seek novel therapeutic approaches. This study aimed to study the impact of biosynthesized selenium nanoparticles by yeast on breast cancer (MCF-7) cells and to find potential underlying mechanisms. Therefore, marine yeast isolates were screened for their ability to biosynthesis selenium nanoparticles (SeNPs).

Elucidating the Interplay between Symmetry Distortions in Passivated MAPbI and the Rashba Splitting Effect.

Hybrid organic-inorganic perovskites play a critical role in modern optoelectronic applications, particularly as single photon sources due to their unusual bright ground state. However, the presence of trap states resulting from surface dangling bonds hinders their widespread commercial application. This work uses density functional theory (DFT) to study the effects of various passivating ligands and their binding sites on Rashba splitting, a phenomenon directly linked to the bright ground state.

Bioremoval of tannins and heavy metals using immobilized tannase and biomass of Aspergillus glaucus.

Background: The presence of inorganic pollutants and heavy metals in industrial effluents has become a serious threat and environmental issues. Fungi have a remarkable ability to exclude heavy metals from wastewater through biosorption in eco-friendly way. Tannase plays an important role in bioconversion of tannin, a major constituent of tannery effluent, to gallic acid which has great pharmaceutical applications.

Optimization of tannase production by Aspergillus glaucus in solid-state fermentation of black tea waste.

Tannases are valuable industrial enzymes used in food, pharmaceutical, cosmetic, leather manufacture and in environmental biotechnology. In this study, 15 fungal isolates were obtained from Egyptian cultivated soil and marine samples. The isolated fungi were qualitatively and quantitatively screened for their abilities to produce tannase.

Cylindrical C Fullertubes: A Highly Active Metal-Free O -Reduction Electrocatalyst.

A new isolation protocol was recently reported for highly purified metallic Fullertubes D -C , D -C , and D -C which exhibit unique electronic features. Here, we report the oxygen reduction electrocatalytic behavior of C , C (spheroidal fullerenes), and C , C , and C (tubular fullerenes) using a combination of experimental and theoretical approaches. C (a metal-free catalyst) displayed remarkable oxygen reduction reaction (ORR) activity, with an onset potential of 0.

Towards Cs-ion supercapacitors: Cs intercalation in polymorph MoS as a model 2D electrode material.

Intercalation of alkali metals has proved to be an effective approach for the enhancement of the energy storage performance in layered-2D materials. However, the research so far has been limited to Li and Na ion intercalation with K ions being recently investigated. Although cesium (Cs) salts are highly soluble in water, Cs intercalation has been addressed neither in batteries nor in supercapacitors so far.

Correction: Fullerene C as a novel electrocatalyst for VO/VO and chlorine evolution inhibitor in all-vanadium redox flow batteries.

Correction for 'Fullerene C76 as a novel electrocatalyst for VO2+/VO2+ and chlorine evolution inhibitor in all-vanadium redox flow batteries' by Farah A. El Diwany et al., Chem.

Comparison between Benzothiadizole-Thiophene- and Benzothiadizole-Furan-Based D-A-π-A Dyes Applied in Dye-Sensitized Solar Cells: Experimental and Theoretical Insights.

Three novel donor-acceptor-π-acceptor-type compounds (WS5, WS6, and WS7) were synthesized and investigated in dye-sensitized solar cells (DSSCs) exploring the effect of conjugated linkers on device performance. The new dyes showed strong light-harvesting ability in the visible region with relatively high molar absorption coefficients (>21 800 M cm). This can be attributed to their intrinsic charge transfer (CT) from the arylamine to the acceptor group.

Fullerene C as a novel electrocatalyst for VO/VO and chlorine evolution inhibitor in all-vanadium redox flow batteries.

We report, for the first time, the superior electrocatalytic activity of fullerene C towards VO/VO in all-vanadium redox flow batteries. Results show a 99.5% and 97% decrease in charge transfer resistance, compared to treated and untreated carbon cloth.

Silkworms as a factory of functional wearable energy storage fabrics.

Feeding Bombyx mori larvae with chemically-modified diets affects the structure and properties of the resulted silk. Herein, we provide a road map for the use of silkworms as a factory to produce semiconducting/metallic natural silk that can be used in many technological applications such as supercapacitor electrodes. The silkworms were fed with four different types of chemicals; carbon material (graphite), sulfide (MoS), oxide (TiO nanotubes), and a mixture of reactive chemicals (KMnO/MnCl).

Unveiling the Effect of the Structure of Carbon Material on the Charge Storage Mechanism in MoS-Based Supercapacitors.

MoS is a 2D material that has been widely used in supercapacitor applications because of its layered structure that provides a large surface area and allows for high electric double-layer charge storage. To enhance the cycling stability and capacitance of MoS, it is usually mixed with carbon materials. However, the dependence of the charge storage mechanism on the structure of the carbon material is still unclear in literature.

Untapped Potential of Polymorph MoS: Tuned Cationic Intercalation for High-Performance Symmetric Supercapacitors.

Supercapacitors have been the key target as energy storage devices for modern technology that need fast charging. Although supercapacitors have large power density, modifications should be done to manufacture electrodes with high energy density, longer stability, and simple device structure. The polymorph MoS has been one of the targeted materials for supercapacitor electrodes.

A first-principles roadmap and limits to design efficient supercapacitor electrode materials.

Our life is turning into an electronic world where we need our devices charged all the time. Although batteries have been doing the job so far, we need devices that charge way faster with longer cycling stability. The answer could be supercapacitors; however, electrode materials that maintain both high energy density and high power density are yet to be discovered.

Recent advances in the use of TiO nanotube powder in biological, environmental, and energy applications.

The use of titanium dioxide nanotubes in the powder form (TNTP) has been a hot topic for the past few decades in many applications. The high quality of the fabricated TNTP by various synthetic routes may meet the required threshold of performance in a plethora of fields such as drug delivery, sensors, supercapacitors, and photocatalytic applications. This review briefly discusses the synthesis techniques of TNTP, their use in various applications, and future perspectives to expand their use in more applications.

Propping the optical and electronic properties of potential photo-sensitizers with different π-spacers: TD-DFT insights.

We report density functional theory (DFT) and time-dependent density functional theory (TD-DFT) calculations on the widely used N3 dye (cis-[Ru(2,2'-bipyridine-4,4'-dicarboxylic acid)(NCS)] and its trans isomer with different π-spacers. The study compared the sensitization properties of the two isomers in terms of their electronic properties such as light harvesting efficiency (LHE), absorbed wavelength (λ) and molecular orbital distribution. Also, charge transfer descriptors, such as the charge transfer distance (D), dipole moment (μ), and the amount of charge transferred (q) were investigated.