多孔質膜センサ素子

Japanese Patent JP7183294

B2

A sensor element (101) for detecting an analyte in a fluid sample by optical probing comprises a translucent membrane (110) with a front side (111) defining a sensor surface for contacting a fluid sample, and a back side (112) facing away from the front side (111). The sensor element (101) has a reflective layer (114) at the front side (111) of the translucent membrane (110). An optical input port (120) is connected to the back side (112) of the translucent membrane (110) for feeding probing light to the translucent membrane (110) through the back side (112). An optical output port (130) is connected to the back side (112) of the translucent membrane (110) for collecting an optical response from the translucent membrane (110) through the backside (112). The sensor element further comprises an optical constriction element (140) with a screen element (141) arranged between the input port (120) and the output port (130), thereby optically separating the output port (130) from the input port (140). The constriction element (140) further comprises a reflective element (142) arranged at the backside (112) of the translucent membrane (110). The reflective element (142) faces towards the reflective layer (114) at a vertical distance D therefrom, thereby defining a probing region (116). Light travelling from the input port (120) to the output port (130) is confined to pass through the probing region (116), wherein at least the probing region (116) comprises pores (118) extending from respective openings at the sensor surface into the translucent membrane (110). A further aspect relates to sensor assembly (101) comprising a sensor element (101) integrated with a sample chamber (102).

WO/2002/088699	PRODUCTION METHOD FOR PHOTOACOUSTIC GAS SENSOR-USE GAS DIFFUSION FILTER
WO/2014/148212	SURFACE PLASMON RESONANCE SENSOR CELL AND SURFACE PLASMON RESONANCE SENSOR
JP2001522998	INDUSTRIAL APPLICABILITY: High-speed screening inspection method and apparatus

Kear, Thomas

JP2020555375A

December 05, 2022

April 08, 2019

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Radiometer Medical ARP

G01N21/03; G01N21/27; G01N21/59; G01N33/483

JP2018533012A
JP2012513601A
JP1500928A
JP6505092A
JP2012115174A

WO1988001376A1
US5408312
WO2017085180A1

Osamu Yamamoto
Toru Miyamae
Junichi Matsuo

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