Dispersant-modified iron nanoparticles for mobility enhancement and TCE degradation: a comparison study

Tween 80 Improves the Acid-Fast Bacilli Quantification in the Magnetic Nanoparticle-Based Colorimetric Biosensing Assay (NCBA)

“…Tween 80 is unique in its ability to enhance the steric repulsion between nanoparticles [ 31 ], demonstrating that when this surfactant is removed, nanoparticles aggregate, mainly when they are added in a solvent [ 36 ] under conditions of high ionic strength [ 37 ], as is the case in biological samples from the respiratory tract [ 38 ]. This aggregation reduces the functional surface area of nanoparticles, their mobility within the analysis matrix, and their reactivity [ 39 ].…”

Enhancing arsenic removal from acidic wastewater using zeolite‐supported sulfide nanoscale zero‐valent iron: the role of sulfur and copper

“…19,20,[23][24][25] To overcome the aggregation of nZVI, much attention has been focused on the method of its modification, for example modification via magnesium hydroxide, grafted surfactants and by loading other organic substances over the nZVI surface. [25][26][27][28][29][30] However, it was observed that the dispersion of surfactants and organics can cause secondary pollution, although the dispersion and adsorption capacity of nZVI was enhanced. Recently, the bimetallic nanoparticles with enhanced electrons transfer and minimized aggregation, due to the introduction of a second metal, have been studied.…”