Title: Quantitative Analysis of Low-Content Impurity Crystal Forms in Canagliflozin Tablets by NIR Solid-State Analysis Technique
Authors: M. Liu, J. Liu, Q. Wang, …, C. Shi, W. Dong
Journal: Spectrochimica Acta – Part A: Molecular and Biomolecular Spectroscopy, 2024, 311, 124000
Abstract: This study presents a quantitative analysis of low-content impurity crystal forms in canagliflozin tablets using near-infrared (NIR) solid-state analysis technique. The impurity crystal forms, even at low concentrations, can significantly impact the efficacy and safety of pharmaceutical products. The NIR spectroscopy combined with chemometrics provides a rapid and non-destructive approach for detecting and quantifying these impurities. The experimental results demonstrate the effectiveness of the NIR technique in accurately determining the content of impurity crystal forms in canagliflozin tablets. The method offers a promising solution for quality control and assurance in the pharmaceutical industry.
Title: Functional Highly-Stretchable Semi-Rigid Poly(vinyl chloride) Plastics via the Addition of Core-Shell Type Star Polyethylenimine-block-poly(ε-caprolactone)
Authors: C. Wang, P.-Y. Liu, Z.-Z. Lin, Y. Chen, H.-C. Li
Journal: Reactive and Functional Polymers, 2024, 197, 105855
Abstract: This article introduces a novel approach to enhance the stretchability of semi-rigid poly(vinyl chloride) (PVC) plastics by incorporating core-shell type star polyethylenimine-block-poly(ε-caprolactone) (PEI-b-PCL) nanoparticles. The addition of PEI-b-PCL nanoparticles imparts unique mechanical properties to the PVC matrix, rendering it highly-stretchable while maintaining its semi-rigid nature. The synthesized PVC/PEI-b-PCL composite exhibits excellent tensile strength and elongation at break, making it suitable for various applications requiring stretchable and durable materials.
Title: Preparation and Characterization of Polyvinyl Chloride Based Carbon Materials with High Specific Surface Area
Authors: C. Zhang, H. Li, Z. Lin, B. Du, X. Zhang
Journal: Carbon Trends, 2024, 14, 100322
Abstract: This study presents the preparation and characterization of polyvinyl chloride (PVC) based carbon materials with high specific surface area. The PVC precursor is carbonized under controlled conditions to obtain carbon materials suitable for various applications, including energy storage and environmental remediation. The synthesized carbon materials exhibit a high specific surface area, as confirmed by nitrogen adsorption-desorption measurements. The characterization results demonstrate the potential of PVC-based carbon materials as promising candidates for next-generation carbonaceous materials.
Title: Synthesis of Newly Discovered Carbon Nanoframes: A Self-Assembly Strategy Based on DTAB @ NaCl
Authors: B. Du, H. Li, C. Zhang, Q. Ji
Journal: Advanced Materials Interfaces, 2024, 11(4), 2300832
Abstract: This article presents a self-assembly strategy for the synthesis of newly discovered carbon nanoframes using dodecyl trimethyl ammonium bromide (DTAB) and sodium chloride (NaCl) as templates. The self-assembly process facilitates the formation of carbon nanoframes with a unique porous structure and high surface area. The synthesized carbon nanoframes exhibit promising properties for various applications, including catalysis, energy storage, and gas adsorption. The proposed self-assembly strategy offers a facile and scalable approach for the production of carbon nanoframes with tailored morphologies and functionalities.
Title: Preparation and Characterization of Cellulose-based Activated Carbon by Cesium Chloride Chemical Method
Authors: C. Zhang, H. Li, B. Du
Journal: BioResources, 2024, 19(1), pp. 1295–1304
Abstract: This article presents the preparation and characterization of cellulose-based activated carbon using a cesium chloride chemical method. The cellulose precursor is carbonized and activated under controlled conditions to obtain activated carbon with high porosity and specific surface area. The synthesized activated carbon exhibits excellent adsorption capacity towards various pollutants, making it suitable for applications in water treatment, air purification, and environmental remediation. The study provides valuable insights into the development of sustainable and efficient activated carbon materials derived from renewable biomass resources.
