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Efficient Orange Light-Emitting Diodes from Nontoxic Organic-Inorganic Hybrid Copper Halides Enabled by Nonionic Surfactant Chemisorption.
Nano Lett
January 2025
Key Laboratory of Materials Physics of Ministry of Education, School of Physics, Zhengzhou University, Daxue Road 75, Zhengzhou 450052, China.
Ternary copper halides with an eco-friendly property have emerged as attractive candidates to replace toxic lead-containing perovskites for light-emitting diodes (LEDs), yet achieving long-wavelength electroluminescence remains unexplored. Herein, we report the first realization of orange-emitting LEDs (595 nm) based on nontoxic organic-inorganic PEACuI (PEA = β-phenylethylamine) films enabled by a nonionic surfactant poly(propylene glycol) bis(2-aminopropyl ether) (APPG) chemisorption. Experimental and theoretical analyses rationalize that the APPG additive has strong chemisorption with the Cu-I framework within the grain boundaries of PEACuI films, which not only improves the film's morphology but also passivates the iodine vacancy defects.
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Molecules
January 2025
Laboratoire de Chimie Agro-Industrielle (LCA), Université de Toulouse, INRAE, 4 allée Emile Monso, 31030 Toulouse, France.
In organic synthesis, the solvent is the chemical compound that represents the largest proportion of the process. However, conventional solvents are often toxic and dangerous for the environment, and an interesting alternative is to replace them by water. In this context, catalyst surfactants allow both organic reagents in water to be solubilized and organic reactions to be catalyzed.
View Article and Find Full Text PDFGold Nanorods Decorated by Conjugated Microporous Polymers for Infrared Responsive Cytostatic Drug Delivery.
Langmuir
January 2025
Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Straße 6, 01069 Dresden, Germany.
Near-infrared (NIR) controlled drug delivery systems have drawn a lot of attention throughout the past few decades due to the deep penetration depth and comparatively minor side effects of the stimulus. In this study, we introduce an innovative approach for gastric cancer treatment by combining photothermal infrared-sensitive gold nanorods (AuNRs) with a conjugated microporous polymer (CMP) to create a drug delivery system tailored for transporting the cytostatic drug 5-fluorouracil (5-FU). CMPs are fully conjugated networks with high internal surface areas that can be precisely tailored to the adsorption and transport of active compounds through the right choice of chemical functionalities.
View Article and Find Full Text PDFInterfacial Rheology as a Tool to Characterize the Dynamics of Spontaneous Emulsification.
Langmuir
January 2025
Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India.
Water-in-oil emulsions are critical in various fields, including food, agriculture, personal care, and pharmaceuticals. In some situations, spontaneous emulsification occurs in emulsions with high concentrations of oil-soluble surfactants, in which the parent water drops fragment into finer droplets, forming a network near the interface, which exhibits interfacial elasticity. This study investigates this phenomenon using a water/Span 80-paraffin oil system.
View Article and Find Full Text PDFSynthesis of an efficient demulsifier derived from cotton cellulose and its demulsification performance in oily wastewater.
Int J Biol Macromol
January 2025
School of Chemistry & Environmental Engineering, Yangtze University, Jingzhou 434023, PR China.
Substantial amounts of oily wastewater are inevitably generated during petroleum extraction and petrochemical production, and the effective treatment of these O/W emulsions is crucial for environmental protection and resource recovery. The development of an environmentally friendly, cost-effective, and efficient demulsifier that operates effectively at low concentrations remains a significant challenge. This study introduces an eco-friendly ionic liquid demulsifier, Cotton Cellulose-Dodecylamine (CCDA), which demonstrates exceptional demulsification performance at low concentrations.
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