Probing magnetic and gold nanoparticles by using MAClevers® as ultrasensitive sensors.
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.
Nakamura
Marcelo
M
Instituto de Química, Universidade de São Paulo, Caixa Postal 26077, CEP 05513-970, São Paulo, SP, Brazil.
Araki
Koiti
K
Toma
Henrique E
HE
D006046:Gold / Q000737:chemistry*; D008280:Magnetics; D053768:Metal Nanoparticles / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D013499:Surface Properties
D006046:Gold