Diagnostic devices with modifiable hydrophobic surfaces
申请人:Siemens Healthcare Diagnostics Inc.
公开号:US10449536B2
公开(公告)日:2019-10-22
A diagnostic device 10 for screening for a target analyte in a sample is provided. The diagnostic device 10 comprises a substrate 12 and a hydrophobic material 20 disposed on the substrate. The hydrophobic material 20 is selected to be converted from the hydrophobic material 20 to a hydrophilic material 22 upon contact with a conversion component within or derived from a sample introduced to the device 10.
A fluorescein-based sensor was developed for the AChE activity assay and the inhibitor screening. The sensor provided the dual assay methods for the screening of AChE activity in the presence or absence of inhibitor. The colorimetric and fluorometric assays were based on the following processes: (1) owing to the hydrolysis of acetylthiocholine in the presence of AChE, the fluorescein-based probe can rapidly induce 1,4-addition of the hydrolysis product thiocholine to alpha,beta-unsaturated ketone in the compound 1, resulting in strong fluorescence and absorption changes; (2) in the presence of the corresponding inhibitor, the fluorescence enhancement or the absorption change would be inhibited in that the formation of thiocholine was hindered. Crown Copyright (C) 2013 Published by Elsevier Ltd. All rights reserved.
DIAGNOSTIC DEVICES WITH MODIFIABLE HYDROPHOBIC SURFACES
申请人:Siemens Healthcare Diagnostics Inc.
公开号:US20170246627A1
公开(公告)日:2017-08-31
A diagnostic device
10
for screening for a target analyte in a sample is provided. The diagnostic device
10
comprises a substrate
12
and a hydrophobic material
20
disposed on the substrate. The hydrophobic material
20
is selected to be converted from the hydrophobic material
20
to a hydrophilic material
22
upon contact with a conversion component within or derived from a sample introduced to the device
10.
[EN] DIAGNOSTIC DEVICES WITH MODIFIABLE HYDROPHOBIC SURFACES<br/>[FR] DISPOSITIFS DE DIAGNOSTIC À SURFACES HYDROPHOBES MODIFIABLES
申请人:SIEMENS HEALTHCARE DIAGNOSTICS
公开号:WO2016036658A1
公开(公告)日:2016-03-10
A diagnostic device 10 for screening for a target analyte in a sample is provided. The diagnostic device 10 comprises a substrate 12 and a hydrophobic material 20 disposed on the substrate. The hydrophobic material 20 is selected to be converted from the hydrophobic material 20 to a hydrophilic material 22 upon contact with a conversion component within or derived from a sample introduced to the device 10.