Abstract
A new class of potential magnetic resonance imaging contrast agents with nanosized mesoporous silica as the metal carrier is reported. Gadolinium-incorporated mesoporous silicas were synthesized by using long-chain surfactant as a template. The products were characterized with X-ray powder diffraction, nitrogen adsorption-desorption isotherms, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, 29Si-MAS NMR, and proton relaxivity. The materials showed much higher relaxivities, r1 and r2, than Gd-DTPA. The particles are nanosized and can enter cells easily. This is a completely novel biomedical application of mesoporous silica materials.
Original language | English |
---|---|
Pages (from-to) | 15608-15611 |
Number of pages | 4 |
Journal | Journal of Physical Chemistry B |
Volume | 108 |
Issue number | 40 |
DOIs | |
Publication status | Published - Oct 7 2004 |
Externally published | Yes |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films
- Materials Chemistry