We present a label-free and sensitivity-improved fiber tapered biosensor based on mesoporous Ag@SiO2 nanospheres, which is amplified by gold nanoparticle. And the special silica based nano-film improves DNA concentration sensitivity reaching to 1.388 nm/log M with good linearity.

© 2015 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription