Carbon Dioxide Pressure and Catalyst Quantity Dependencies in Artificial Photosynthesis of Hydrocarbon Chains on Nanostructured Co/CoO Surfaces.

In this study, we investigated the influence of pressure and the quantity of Co/CoO catalyst on an artificial photosynthesis process that converts CO and HO into hydrocarbons (CH, where ≤ 18). The adsorption of CO and HO on Co/CoO surfaces proved to be pivotal in this photo-catalytic reaction. Photoexcited carbon dioxide and water molecules ((CO)* and (HO)*) generated by illuminating the catalyst surface led to the formation of alkene hydrocarbon molecules with carbon numbers following an approximate Poisson distribution.

Temperature Dependence of the Artificial Photosynthesis Reactions Catalyzed by Nanostructured Co/CoO.

Carbon dioxide (CO) and water (HO) have been converted into hydrocarbons at temperature ranging from 58 to 242 °C through an artificial photosynthesis reaction catalyzed by nanostructured Co/CoO. The experimental results show that chain hydrocarbons (alkane hydrocarbons) (C H, where 3 ≤ ≤ 16) mainly form at a temperature higher than about 60 °C, the production rate reaches a maximum at 130 °C, and abruptly decreases above 130 °C, and then gradually increases until 220 °C. While the temperature is higher than 220 °C, benzene (CH) and its derivatives such as toluene (CH), -xylene (CH), and CH form.

Femtosecond Laser-Induced Thermal Transport in Silicon with Liquid Cooling Bath.

Nanostructured regular patterns on silicon surface are made by using femtosecond laser irradiations. This is a novel method that can modify the surface morphology of any large material in an easy, fast, and low-cost way. We irradiate a solid surface with a 400-nm double frequency beam from an 800-nm femtosecond laser, while the solid surface is submerged in a liquid or exposed in air.

Incorporation of Keplerate-type Mo-O based macroanions into ZnAl-LDH results in the formation of all-inorganic composite films with remarkable third-order optical nonlinearity.

Herein, new all-inorganic transparent composite films with the formula (Zn2Al-LDH/{Mo132-Ac})n have been fabricated by a layer-by-layer method using the exfoliated Zn2Al-LDH monolayer nanosheets and Keplerate-type macroanion {Mo132-Ac}. They were characterized by UV-vis absorption spectroscopy, SEM, AFM, and XPS techniques. The Z-scan measurements, which were conducted under laser irradiation at a wavelength of 532 nm, a pulse width of 6 ns, a repetition rate of 10 Hz, and the light intensity at a focus E0 of 10 μJ, revealed that all the films had notable saturated absorption and self-defocusing effect with a large third-order optical nonlinear susceptibility χ(3).

Manual assembly of a rare-earth polyoxometalate microcrystal film showing highly polarized luminescence.

Currently, the realization of rationally designed architectures based on polyoxometalates (POMs) with designed functions has mostly been achieved through the preparation of functional films. However, the traditional approaches suffer from the drawbacks such as time-consuming processes, ill-defined structure and quality, random orientation of the POM molecules, and unsatisfactory performance. In this study, microcrystals of Ag[EuWO]·36HO (denoted as Ag[EuWO]) were synthesized via a titration method by treating Na[EuWO]·32HO (denoted as Na[EuWO]), selected as a prototype, with Ag, leading to the formation of a water-insoluble crystalline powder with a uniform hexagonal platelet morphology.

Fabrication and optical nonlinearities of composite films derived from the water-soluble Keplerate-type polyoxometalate and chloroform-soluble porphyrin.

Composite films derived from the water-soluble Keplerate-type polyoxometalate (NH4)42[Mo132O372(CH3COO)30(H2O)72]·ca. 300H2O·ca. 10CH3COONH4 (denoted (NH4)42{Mo132}) and chloroform-soluble tetraphenylporphyrin perchlorate [H2TPP](ClO4)2 are successfully fabricated by a layer-by-layer self-assembly method and characterized by UV-vis spectroscopy and X-ray photoelectron spectroscopy (XPS).

Effect of coronary revascularization on serum collagen biomarkers and left ventricular remodeling in patients with acute myocardial infarction.

Objective: After an acute myocardial infarction (AMI), early coronary revascularization alleviates the synthesis of cardiac collagen and ventricular remodeling. However, the impact of late coronary revascularization on the synthesis of myocardial collagen or on serum collagen biomarkers is unknown. This study aimed to investigate the effects of late coronary revascularization on serum collagen biomarkers after AMI.

Effect of simvastatin on plasma interleukin-6 in patients with unstable angina.

Purpose: The primary aim of the study was to investigate the effect of sinvastatin on plasma interleukin-6 (IL-6) in patients with unstable angina pectoris (UAP).

Methods: Eighty-six patients with UAP were randomized into simvastatin (40 mg/d for 4 weeks) and the placebo group. Plasma IL-6 was measured by ELISA.

L-carnitine as an adjunct therapy to percutaneous coronary intervention for non-ST elevation myocardial infarction.

Objectives: To evaluate the effects of L: -carnitine as an adjunct therapy to percutanenous coronary intervention (PCI) for non-ST elevation acute coronary syndrome (NSTEMI).

Materials And Methods: Ninety-six consecutive patients with NSTEMI were randomized into treatment group (L: -carnitine 5 g IV bolus followed by 10 g/day IV infusion for 3 days), and control group. All patients also underwent PCI within 24 h from the onset of chest pain.