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1. Reports Outline Carbon Nanotubes Study Results from Suzhou University of Science and Technology (Understanding the Mechanism of the Structure-Dependent Mechanical Performance of Carbon-Nanotube-Based Hierarchical Networks from a Deformation...).

Subjects
CARBON nanotubes, ELASTIC modulus, DEFORMATIONS (Mechanics), STRUCTURAL design, DYNAMIC simulation
Abstract

A recent report from Suzhou University of Science and Technology in China explores the mechanical performance of carbon nanotube (CNT)-based networks. The study focuses on a specific type of CNT-based network called a super carbon nanotube (SCNT) and investigates how its mechanical properties are influenced by factors such as CNT arrangement, length, and chirality. Through molecular dynamic simulations, the researchers found that different CNT arrangements can cause variations in the ultimate tensile strains of SCNTs, while CNT length affects the tangent elastic modulus and CNT chirality can transform fracture modes. The study provides valuable insights for the structural design of CNT-based networks. [Extracted from the article]

Published
2024

2. Enantioselective Degradation and Chiral Stability of Phenthoate in Soil.

Author

Li, Z., Zhang, Z., Zhang, L., and Leng, L.

Subjects
INSECTICIDES & the environment, ENANTIOMERS, ORGANOPHOSPHORUS compounds, ENVIRONMENTAL degradation, ACID soils, HIGH performance liquid chromatography, CHIRALITY, OPTICAL isomers, STEREOCHEMISTRY
Abstract

This article discusses the chiral chemical structure of the organophosphorus insecticide, phenthoate, and the efficacy of its enantiomers in soils in China. Enantiopure positive phenthoate was prepared and tested by chiral high performance liquid chromatography. The authors found that phenthoate degraded faster in Tianjin alkaline soil than in Hubei acidic soil. Also, the insecticidally more active positive enantiomer degraded faster than negative phenthoate. They concluded that degradation would lead to residues enriched with the less active negative phenthoate.

Published
2007
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