September 10, 2025Langmuir

Eco-Friendly Synthesis of Ag and Au Nanoparticles Using Lactic Acid from Fermentation Waste and Cyclodextrins as Colloidal Stabilizers

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This research demonstrates improved stability and catalytic efficiency in nanoparticles using lactic acid and cyclodextrins.

The nanoparticles exhibited stable surface plasmon resonance characteristics and remained colloidally stable in water for three weeks.
Silver nanoparticles using β-CDModDS5 showed the highest catalytic activity at 27 L·s–1·m–2 in 4-nitrophenol reduction.
Transmission electron microscopy depicted spherical nanoparticles with sizes ranging from 6.7 nm to 17 nm.
The use of lactic acid and pH-sensitive ligands presents a sustainable method for nanoparticle synthesis.

Álvarez et al. (2025) studied this question.

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