Surface plasmon resonance device, preparation method thereof, water absorption quantity detection system and method
A surface plasmon, water absorption technology, applied in measurement devices, microstructure devices, manufacturing microstructure devices, etc., can solve the problems of inconvenience, the reproduction of the change process depends on data storage, etc., and achieve the effect of high precision
Pending Publication Date: 2020-01-10
SUZHOU UNIV
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Problems solved by technology
[0002] Traditional hygrometers can accurately reflect the humidity in the current open environment, but there are still some limitations in the measurement of humidity in closed or non-destructive testing environments, and the reproduction of the change process depends on data storage, which still exists in practical applications. many inconveniences
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[0043] The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.
[0044] ginseng figure 1 As shown, a surface plasmon resonance device in an embodiment of the present invention includes: a substrate 1 , a metal film 2 on the substrate 1 , and a polymer film 3 on the metal film 2 .
[0045] Wherein, the metal film 2 is a gold film, a silver film or an aluminum film, and the thickness of the metal film 2 is not less than 80 nm. Preferably, the metal film in this embodiment is a gold film.
[0046] The material of the polymer film in the present invention is a polymer material having a hydrophilic group and a hydrophobic group, such as a PEG material, and the degree of polymerization of...
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Abstract
The invention discloses a surface plasmon resonance device, a preparation method of the surface plasmon resonance device, a water absorption quantity detection system and a water absorption quantity detection method. The surface plasmon resonance device comprises a substrate, a metal film located on the substrate and a polymer thin film located on the metal film; a plurality of surface plasmon resonance cavities distributed in an array mode are formed in the polymer thin film; and the thicknesses of the polymer thin film are different under different water absorption quantity conditions. The surface plasmon resonance device of the invention is used for detecting the directional swelling of polymer hydrogel and realizes the in-situ nondestructive detection of water absorption quantities ina closed humidity environment on the basis of surface plasmon resonance (SPR); and the application range of the surface plasmon resonance device is obviously expanded compared with a traditional hygrometer and humidity indication silica gel.
Description
technical field [0001] The invention belongs to the technical field of water absorption detection, and in particular relates to a surface plasmon resonance device and a preparation method, and a water absorption detection system and method. Background technique [0002] Traditional hygrometers can accurately reflect the humidity in the current open environment, but there are still some limitations in the measurement of humidity in closed or non-destructive testing environments, and the reproduction of the change process depends on data storage, which still exists in practical applications. A lot of inconvenience. However, the humidity environment is a factor that cannot be ignored in the process of food or pharmaceutical production, processing and transportation, and the traceability from source to table has become the focus of increasing attention. With the change of water absorption, different foods and medicines will show different water activities, and the water activit...
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Login to View More IPC IPC(8): G01N21/552G01N21/01B81C1/00
CPCG01N21/554G01N21/01B81C1/00B81C1/00373
Inventor 武清锋翁雨燕方亮
Owner SUZHOU UNIV