登入
選單
返回
Google圖書搜尋
Application of sol-gel materials in chemical and biosensor research
Aleksandra Lobnik
Otto S. Wolfbeis
Merima Čajlaković
Nataša Majcen
T. Werner
其他書名
first report of the bilateral project Slovenia-Germany
出版
Fakulteta za strojništvo, Inštitut za tekstilno kemijo, ekologijo in koloristiko
, 1999
URL
http://books.google.com.hk/books?id=PiRhngEACAAJ&hl=&source=gbs_api
註釋
The aim of this work was to prepare various sol-gel layers doped with appropriate indicators for pH and ion sensing. The pH sensitive dye fluorescin was incorporated into a sol-gel cocktail and the resulting materials were tested for their response to pH. In the area of ion sensing sol-gels became important because they show some capability to retain into sol-gel network indicators and at the same time they allow penetration of small ions. In this case two quenchable dyes were doped: lucifer yellow for the the detection of Cu2+ ions and the lucigidin dye which is efficiently quenched by halides and amines resulting in an ion concentration-dependent fluorescene decrease without a shift of wavelength.
