title: Probing magnetic and gold nanoparticles by using MAClevers® as ultrasensitive sensors.
abstract: Magnetic AFM probes known as MAClevers® were employed for sensing picogram amounts of magnetic nanoparticles, based on the cantilever frequency shifts resulting from the magnetically induced adsorption of mass. By using organothiol functionalized magnetic nanoparticles, this analytical strategy was successfully extended to the detection of gold nanoparticles, as confirmed by confocal Raman microscopy.
authors.affiliation: Instituto de Química, Universidade de São Paulo, Caixa Postal 26077, CEP 05513-970, São Paulo, SP, Brazil.
authors.forename: Marcelo
authors.initials: M
authors.lastname: Nakamura
authors.forename: Koiti
authors.initials: K
authors.lastname: Araki
authors.forename: Henrique E
authors.initials: HE
authors.lastname: Toma
mesh_terms: D006046:Gold / Q000737:chemistry*; D008280:Magnetics; D053768:Metal Nanoparticles / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D013499:Surface Properties
chemical_list: D006046:Gold