Polyol Synthesis: A Versatile Wet-Chemistry Route for the Design and Production of Functional Inorganic Nanoparticles

Abstract

The term “polyol process” was first used in the late eighties by Fiévet, Lagier, and Figlarz [...]

Understanding MNPs Behaviour in Response to AMF in Biological Milieus and the Effects at the Cellular Level: Implications for a Rational Design That Drives Magnetic Hyperthermia Therapy toward Clinical Implementation

“…Thus, flower-like iron oxide assemblies between 25 and 250 nm can be obtained by heating a mixture of Fe(II) and Fe(III), or of an Fe(III) salt alone, to 200 °C in a heating mantel or in an autoclave [ 108 , 125 ]. In this sense, polyols are very interesting polar solvents that work as reducer, surfactant and high temperature synthesis media, allowing the use of inorganic salts as precursors [ 126 ]. Moreover, it is possible to combine the polyol procedure with more efficient heating technologies, such as microwave heating, leading to higher production yields over shorter reaction times [ 127 ].…”

Nanoparticles for Magnetic Heating: When Two (or More) Is Better Than One

“…In fact, one of the most used methods for preparing MC_NPs with internal exchange interactions ( Section 4.1 ) is the synthesis in polyol media because of its versatility and reproducibility [ 139 ]. The polyol is a polar media to dissolve the precursors and determine the maximum temperature of heating.…”

Structure and Optical Property of Gold Nanoparticles Synthesized by Modified Polyol Method

“…In recent years, the functional Au metal and alloy nanoparticles have been studied for cancer therapy, drug delivery, antimicrobial application, biosensors (glucose, nucleic acid, and protein biosensors), energy, environment, and food industry [4][5][6]. It is known that the modified polyol methods are effectively used to synthesize the metal, bimetal, oxide, and alloy nanoparticles in many reviewed works with the good utilization of ethylene glycol (EG) and polyethylene glycol (PEG) [4][5][6]. Therefore, our modified polyol methods with NaBH 4 and structure controlling agents open new ways of controlled sythesis of Au nanomaterials for the above potential applications.…”

“…Therefore, our modified polyol methods with NaBH 4 and structure controlling agents open new ways of controlled sythesis of Au nanomaterials for the above potential applications. In the synthesis of metal nanoparticles, it is proved that EG is an industrial solvent, perfectly suited for the controlled synthesis of nanomaterial systems of metal, oxide, and alloy [4][5][6][7][8]. Additionally, EG is readily available and completely safe for the controlled synthesis of Au nanomaterials.…”

“…It is known that the as-prepared Au nanoparticles have very potential applications for catalysis, biology, medicine, and nanomedicine [2,3]. In controlled synthesis of Au-based nanoparticles, the critical issues of their size, shape, morphology, and nanostructure have been intensively investigated in modified polyol methods [4][5][6]. Researchers have focused in an understanding of the relationships between concentration of the precursors for the formation of nanoparticles, EG or PEG solvents for the formation of nanosystem, reducing agents as NaBH 4 , concentrations of protecting agents as poly(vinylpyrrolidone) (PVP), cetyltrimethyl ammonnium bromide (CTAB), dendrimers, and ligands for the stabilization of nanoparticles, and their controlling-structure agents [1][2][3].…”