会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 69. 发明专利
    • DE69815121D1
    • 2003-07-03
    • DE69815121
    • 1998-01-29
    • AMERSHAM BIOSCIENCES SV CORP
    • KAIN CMARASON GJOHNSTON F
    • G01N21/01G01N21/64G02B21/06
    • A sample substrate (51, Fig. 4A) for use in a fluorescence imaging system (Fig. I) includes a rigid base with a specularly reflective surface, typically metal, on which is deposited a transparent coating layer (53). The coating layer has a thickness selected so that a particular fluorescence excitation wavelength, corresponding to a specified fluorescent constituent to besought in sample material, has an optical path from the top of the coating layer to the reflecting surface in the base of substantially an odd multiple of one-quarter wavelength, so that the standing wave of the fluorescence excitation wavelength of light incident of the substrate has an antinode (61) located at or near where sample material would be disposed on top of the coating layer. This maximizes fluorescence excitation of the sample on the reflective substrate. The transparent coating layer may be a dielectric material (e.g. silica) or may be a multilayer structure with a top layer of biologically active material for binding a specified sample constituent.