Method and system for detecting special chemical substance in the detected object

A technology of chemical substances and measured objects, applied in a kind of improved light scattering probe and a chemical field, can solve the problem of limited application, nanostructure materials that do not provide nanoarrays, and do not provide fabrication and encapsulation of nanostructured precious metal surfaces And other issues

Inactive Publication Date: 2010-01-20
欧普图斯科技有限公司
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Problems solved by technology

Due to the limited availability of non-contaminating nanostructured precious metal surfaces, even trace chemicals can be detected at parts-per-billion (ppb) levels, using SERS and SERRS to detect explosives and/or other trace chemicals The application of material technology is still very limited
[0006] However, the existing literature does not provide an effective method to fabricate and encapsulate non-poll...

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  • Method and system for detecting special chemical substance in the detected object
  • Method and system for detecting special chemical substance in the detected object
  • Method and system for detecting special chemical substance in the detected object

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Embodiment Construction

[0063] See Figure 1A , A light scattering probe 100 includes a probe 110 and a detector 105. The detector 105 includes a nanometer-scale surface structure. The nanoscale surface structure may include a plurality of nanopillars 108, such as Figure 1B Shown are multiple nanopores, or other nano-sized surface structures. In some embodiments, as described below, a nano-scale surface structure can be made by coating a colloidal suspension solution containing nanoparticles on the surface of the detector 105. The solution can then be evaporated and the nanoparticles deposited on the surface.

[0064] Taking the nanometer surface containing the nanopillar 108 as an example, a liquid sample can be introduced onto the nanopillar 108 of the detector 105. The liquid sample may include the body fluid of the patient or the user of the illegal drug to assist in the judgment of the disease or the use of the drug according to the test result. Examples of body fluids may include blood, saliva...

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Abstract

The invention pertains to the field of trace chemical substance detection, relates to a method and system for detecting whether special chemical substance is contained in the detected object. The method includes delivering sample of the detected object to a probe comprising nano-scale surface structure in order to make the sample in contact with the nano-scale surface structure; irradiating the nano-scale surface structure with a laser beam; scattering the laser beam by the sample and the nano-scale surface structure in order to generate a scattered light; obtaining the spectrum of the scattered light; analyzing the spectrum signal by a spectrum analyzer in order to detect whether special chemical substance is contained in the detected object. The invention provides simple and non-invasive detection method, which is convenient for carrying and easy to operate. The method and the system can be applied in fields of counter-terrorism, criminal investigation, medical diagnosis, disease prevention, industrial process monitoring, environment cleaning and monitoring, counterfeit goods detection, product identification, detection of methanol and ethanol content in alcohol, quality control of food and medicament or the like.

Description

[0001] This application claims the priority of US Patent Application No. 12 / 176,383 and US Patent Application No. 12 / 246,616. Among them, the U.S. Patent Application No. 12 / 246,616 is a part of the continuation (CIP) application of the pending U.S. Patent Application No. 12 / 176,383 that is jointly assigned and is in the examination process. A partial continuation patent application of the U.S. Patent Application No. 11 / 681,157 under examination. The pending U.S. Patent Application No. 11 / 681,157 in the examination process was filed on March 1, 2007 with the name "Hen Quantitative chemical optical probe". The US patent application No. 11 / 681,157 is a continuation of the jointly assigned US patent application No. 10 / 987,842 (now authorized as US No. 7,242,469), and the US patent application No. 10 / 987,842 is in May 2004. A partial continuation of the US patent application No. 10 / 852,787 (now authorized as US No. 7,384,792) filed on the 24th. The US Patent Application No. 10 / 852,...

Claims

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Application Information

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IPC IPC(8): G01N21/65G01N21/49G01N33/487
CPCG01N21/658
Inventor 汪泓郭浔刘春伟
Owner 欧普图斯科技有限公司
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