Renewable Aromatics from Tree-Borne Oils over Zeolite Catalysts Promoted by Transition Metals.

Despite the ever-growing demand for benzene-toluene-xylene (BTX), the alternative route of production from tree-borne oils is rarely investigated and poorly understood. Here, we have synthesized a Zn-loaded Y-zeolite catalyst for the continuous production of bio-BTX from tree-borne oils (nonedible seed oil), e.g.

Pineapple Peel-Derived Carbon Dots: Applications as Sensor, Molecular Keypad Lock, and Memory Device.

Herein, the fluorescent carbon dots (CDs) with blue emission were prepared by hydrothermal treatment using pineapple peel as a source of carbon. The as-prepared CDs exhibited turn-Off fluorescence behavior toward Hg and subsequent turn-On behavior for l-cysteine along with enhanced biocompatibility and negligible cytotoxicity for cell imaging. The practical applicability of carbon dots was used for the quantification of Hg in water.

Correction: Mesoporous carbon nitrides: synthesis, functionalization, and applications.

Correction for 'Mesoporous carbon nitrides: synthesis, functionalization, and applications' by Kripal S. Lakhi et al., Chem.

Mesoporous carbon nitrides: synthesis, functionalization, and applications.

Mesoporous carbon nitrides (MCNs) with large surface areas and uniform pore diameters are unique semiconducting materials and exhibit highly versatile structural and excellent physicochemical properties, which promote their application in diverse fields such as metal free catalysis, photocatalytic water splitting, energy storage and conversion, gas adsorption, separation, and even sensing. These fascinating MCN materials can be obtained through the polymerization of different aromatic and/or aliphatic carbons and high nitrogen containing molecular precursors via hard and/or soft templating approaches. One of the unique characteristics of these materials is that they exhibit both semiconducting and basic properties, which make them excellent platforms for the photoelectrochemical conversion and sensing of molecules such as CO, and the selective sensing of toxic organic acids.

A 0.18 μm biosensor front-end based on 1/f noise, distortion cancelation and chopper stabilization techniques.

This paper presents a novel sensor front-end circuit that addresses the issues of 1/f noise and distortion in a unique way by using canceling techniques. The proposed front-end is a fully differential transimpedance amplifier (TIA) targeted for current mode electrochemical biosensing applications. In this paper, we discuss the architecture of this canceling based front-end and the optimization methods followed for achieving low noise, low distortion performance at minimum current consumption are presented.

Electrochemical oxygen reduction reaction by Pt nanoparticles on carbon support stabilized by polyoxometalates.

The abilities of Keggin type polyoxometalate, silicotungstic acid (STA) to reduce metal ions by electron transfer and to modify carbon surface by strong adsorption have been explored for the preparation of Pt nanoparticles supported on carbon composites (20% Pt/STA-C). The prepared composites were characterized by Transmission electron microscopy (TEM and HRTEM)), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). The electrocatalytic activities of the prepared nanocomposites were examined by using Cyclic voltammetry (CV) for oxygen reduction reaction which takes place at cathode in fuel cells.

Synthesis and crystal structure of [2 + 2] calixsalens.

Efficient synthesis of chiral [2 + 2] macrocyclic tetraimines which display calixarene-like crystal structures has been described, with short reaction times under microwave irradiation.