CN103398952B - 生物传感器检测中的导模共振滤波片反射率优化方法 - Google Patents

生物传感器检测中的导模共振滤波片反射率优化方法 Download PDF

Info

Publication number
CN103398952B
CN103398952B CN201310351191.1A CN201310351191A CN103398952B CN 103398952 B CN103398952 B CN 103398952B CN 201310351191 A CN201310351191 A CN 201310351191A CN 103398952 B CN103398952 B CN 103398952B
Authority
CN
China
Prior art keywords
filter plate
modification level
guide mode
mode resonance
bandwidth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201310351191.1A
Other languages
English (en)
Other versions
CN103398952A (zh
Inventor
王�琦
钱林勇
徐邦联
王振云
张大伟
黄元申
洪瑞金
倪争技
盛斌
陶春先
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Publishing and Printing College
University of Shanghai for Science and Technology
Original Assignee
University of Shanghai for Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Shanghai for Science and Technology filed Critical University of Shanghai for Science and Technology
Priority to CN201310351191.1A priority Critical patent/CN103398952B/zh
Publication of CN103398952A publication Critical patent/CN103398952A/zh
Application granted granted Critical
Publication of CN103398952B publication Critical patent/CN103398952B/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

本发明涉及一种生物传感器检测中的导模共振滤波片反射率优化方法,在现有的滤波片最上层光栅层表面产生一层修正层,搭建简单光路,用宽带光源作为入射光垂直入射到滤波片上,然后通过耦合,将其反射光耦合进光纤通过光谱仪实际测试出其波峰的移动量和带宽,最后通过改变修改层的厚度,得到不同的波峰位置和带宽,直到得到所需波峰位置和带宽,将待测物质加在修正层上,生物分子间共价键的作用,待检测物质和修正层紧紧结合起来,达到很好的测试效果。此方法能够简单快速使滤波片达到所需要的窄带效果。具有很大的通用性,不仅实现待测物滤光片表面的有效吸附,同时还可以增加整个传感系统的灵敏度。

Description

生物传感器检测中的导模共振滤波片反射率优化方法
技术领域
本发明涉及一种生物传感检测方法,特别涉及一种生物传感器检测中的导模共振滤波片反射率优化方法。
背景技术
生物传感包括标签检测和无标签检测技术,由于传统上通常采用的是荧光或者放射性标记的标签检测方式,测试过程中不但标记信号本身太过微弱,显微镜或者ccd检测装置难以响应,而且这种标签的添加也一定程度上影响了分子间原有状态,使得测试结果并不是很准确。所以无标签检测技术得到人们越来越多的青睐。而基于光学原理的无标签生物传感直接将生物信号转化为一定光学参数的变化,如,透过率,透过波段,相位等。导模共振原理的滤光片用来检测生物小分子就是其中比较成熟和有前景的一种。导模共振滤波片直接将感应到的附着样品分子间的变化转变为共振波峰的移动。表面光子晶体产生的窄带光学共振可以设计出很窄的倏失场,共振波长可以从紫外覆盖到红外。将导模共振滤光片作为光学传感器件,搭建简单的检测系统,就能实现样品的无标签检测。现在的研究多把导模共振生物传感器结合微流体技术,这样来提高样品检测的通量、准确率,并实现算机自动控制,后期成像等。除此之外,在相关的在先专利文献方面,如中国发明专利案(公开号CN102317781A),说明了各种适体配体等生化反应对共振峰的改变,却没有说明其反应过程对于整个共振峰半宽的影响。在现有技术中,由于待测生物小分子整体对滤光片共振峰的移动是很小的,大多小于1nm。而实际制作的滤光片不能满足要求,使得传感器的灵敏度达不到所要求。
发明内容
本发明是针对导模共振生物传感器中滤光片共振峰的移动影响传感器灵敏度的问题,提出一种生物传感器检测中的导模共振滤波片反射率优化方法,基于导模共振原理,光栅层使用不同介质以及光栅占空比对于实际滤光片的半宽的影响原则,通过适当改变加入调制样品层厚度达到最优化的结果,操作方便。
本发明的技术方案为:一种生物传感器检测中的导模共振滤波片反射率优化方法,具体包括如下步骤:
1)导模共振生物传感器中滤波片从上到下分别为光栅层、波导层、基底,在滤光片的光栅层表面产生一层修正层,所选修正层为不影响待测物特性的生物或者化学样品;
2)搭建简单光路,用宽带光源作为入射光垂直入射到滤波片上,然后通过耦合,将其反射光耦合进光纤通过光谱仪实际测试出其波峰的移动量和带宽;
3)改变修正层的厚度,重复步骤2)测得不同的波峰移动量以及不同的带宽,再改变正层的厚度,直到得到所需波峰位置和带宽;
4)将待测物质加在修正层上,生物分子间共价键的作用,待检测物质和修正层紧紧结合起来,再检测待测物的峰值移动,得到优化后测试结果。
所述修正层可选硅烷基或者用硅烷来连接的生物素和亲和素。
本发明的有益效果在于:本发明生物传感器检测中的导模共振滤波片反射率优化方法,能够简单快速使滤波片达到所需要的窄带效果。具有很大的通用性,不仅实现待测物滤光片表面的有效吸附,同时还可以增加整个传感系统的灵敏度。
附图说明
图1为本发明导模共振滤光片结构示意图;
图2为本发明调制样品层以及待测样品层的吸附方式示意图;
图3为本发明修正层对滤光片半宽的影响对比图。
具体实施方式
如图1所示滤波片的结构示意图,从上到下分别为光栅层1、波导层2、基底3,以BK7作为基底3,波导层2折射率为n w =2.02,厚度为=300nm,光栅层1折射率n g =1.685,厚度是=250nm,光栅周期^是800nm,填充系数是0.475,覆盖层是空气层。
图2所示导模共振滤光片结构示意图,在光栅层1面上用硅烷基加一层修正层5或者用生物素-亲和素系统作为图2中修正层5,生物素-亲和素系统是以生物素和亲和素具有的独特结合特性为基础,结合二者即可偶联抗原抗体等大分子生物活性物质,它们的结合迅速、专一、稳定,并具有多级放大效应。然后如图2所示修正层上加待测物4,待测物4可以是抗体,或者核酸等小分子。
可以用宽带光源作为入射光垂直入射到图2所示样品的表面,然后通过耦合将其反射光耦合进光纤通过光谱仪实际测试出其波峰的移动。不同修正层5所对应反射比如图3所示。其中修正层,厚度分别是为0nm,75nm,125nm,175nm,250nm.可以看出波峰逐渐右移,半宽逐渐变窄。通过计算Q值(滤波片品质因数)由96.18变为279.76。
用导模共振滤光片搭建简单光路,实现小分子样品的检测。在待测物加入待测样品室之前,先用不影响待测物特性的其他生物或者化学样品使滤光片表面产生一层修正层5,优化滤波片的带宽,达到很窄的共振带宽,进而就增加了待测物产生的共振峰微小移动的识别。然后,加入实际待测小分子,如:蛋白质,核酸等。由于生物分子间共价键的作用,使待检测物质和修正层5紧紧结合起来。最后窄带波峰的移动记录下来,达到生物传感效果。

Claims (2)

1.一种生物传感器检测中的导模共振滤波片反射率优化方法,其特征在于,具体包括如下步骤:
1)导模共振生物传感器中滤波片从上到下分别为光栅层、波导层、基底,在滤波片的光栅层表面产生一层修正层,所选修正层为不影响待测物特性的生物或者化学样品;
2)搭建简单光路,用宽带光源作为入射光垂直入射到滤波片上,然后通过耦合,将其反射光耦合进光纤通过光谱仪实际测试出其波峰的移动量和带宽;
3)改变修正层的厚度,重复步骤2)测得不同的波峰移动量以及不同的带宽,再改变修正层的厚度,直到得到所需波峰位置和带宽;
4)将待测物质加在修正层上,在生物分子间共价键的作用下,待检测物质和修正层紧紧结合起来,再检测待测物的峰值移动,得到优化后测试结果。
2.根据权利要求1所述生物传感器检测中的导模共振滤波片反射率优化方法,其特征在于,所述修正层可选硅烷基或者用硅烷来连接的生物素和亲和素。
CN201310351191.1A 2013-08-13 2013-08-13 生物传感器检测中的导模共振滤波片反射率优化方法 Expired - Fee Related CN103398952B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310351191.1A CN103398952B (zh) 2013-08-13 2013-08-13 生物传感器检测中的导模共振滤波片反射率优化方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310351191.1A CN103398952B (zh) 2013-08-13 2013-08-13 生物传感器检测中的导模共振滤波片反射率优化方法

Publications (2)

Publication Number Publication Date
CN103398952A CN103398952A (zh) 2013-11-20
CN103398952B true CN103398952B (zh) 2016-01-20

Family

ID=49562618

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310351191.1A Expired - Fee Related CN103398952B (zh) 2013-08-13 2013-08-13 生物传感器检测中的导模共振滤波片反射率优化方法

Country Status (1)

Country Link
CN (1) CN103398952B (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103969185B (zh) * 2014-05-19 2016-09-14 上海理工大学 一种提高导模共振生物传感器测试灵敏度的方法
CN105606219B (zh) * 2016-02-17 2017-11-28 上海理工大学 带楔形波导层导模共振滤波片的微型光谱仪
CN111208060A (zh) * 2020-02-14 2020-05-29 复旦大学 传感芯片及其制备方法、检测系统和检测方法
CN114675360B (zh) * 2020-12-25 2024-03-08 广州睿芯微电子有限公司 一种导模共振窄带滤波单元结构及多光谱芯片

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1971267A (zh) * 2005-11-23 2007-05-30 财团法人工业技术研究院 波导耦合表面等离子体共振生物传感器
CN101548211A (zh) * 2006-12-05 2009-09-30 韩国电子通信研究院 包含高折射率有机材料的导向模式共振过滤器及包含该导向模式共振过滤器的光学生物传感器
US7756365B2 (en) * 2006-07-07 2010-07-13 University Of Illinois Near ultraviolet-wavelength photonic-crystal biosensor with enhanced surface to bulk sensitivity ratio
CN102288552A (zh) * 2006-09-08 2011-12-21 罗伯特·马格努松 利用角、光谱、模态和偏振分集的用于高精度感测的紧凑形式导模共振传感器
CN102317781A (zh) * 2008-12-15 2012-01-11 Sru生物系统公司 细胞中变化的检测方法
TW201305549A (zh) * 2011-07-19 2013-02-01 Univ Nat Central 具金屬緩衝層之波導共振生物感測器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7167615B1 (en) * 1999-11-05 2007-01-23 Board Of Regents, The University Of Texas System Resonant waveguide-grating filters and sensors and methods for making and using same
JP5131806B2 (ja) * 2006-08-21 2013-01-30 独立行政法人産業技術総合研究所 細孔付き光導波モードセンサー

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1971267A (zh) * 2005-11-23 2007-05-30 财团法人工业技术研究院 波导耦合表面等离子体共振生物传感器
US7756365B2 (en) * 2006-07-07 2010-07-13 University Of Illinois Near ultraviolet-wavelength photonic-crystal biosensor with enhanced surface to bulk sensitivity ratio
CN102288552A (zh) * 2006-09-08 2011-12-21 罗伯特·马格努松 利用角、光谱、模态和偏振分集的用于高精度感测的紧凑形式导模共振传感器
CN101548211A (zh) * 2006-12-05 2009-09-30 韩国电子通信研究院 包含高折射率有机材料的导向模式共振过滤器及包含该导向模式共振过滤器的光学生物传感器
CN102317781A (zh) * 2008-12-15 2012-01-11 Sru生物系统公司 细胞中变化的检测方法
TW201305549A (zh) * 2011-07-19 2013-02-01 Univ Nat Central 具金屬緩衝層之波導共振生物感測器

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
Fabrication Error Analysis and Compensation for Guided-Mode Resonance Biosensor;Kehui Jia et al.;《IEEE PHOTONICS TECHNOLOGY LETTERS》;20120515;第24卷(第4期);第291-293页 *
Guided-mode resonance sensors for biochemical screening;R.Magnusson et al.;《2007 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS》;20071231;第228-229页 *
Resonant Photonic Biosensors with Polarization-Based Multiparametric Discrimination in Each Channel;Robert Magnusson et al.;《Sensors》;20110126;第11卷(第2期);第1477页倒数第1段,第1481页倒数第1段 *
Ssensitivity of a Label-Free Guided-Mode Resonant optical Biosensor with Different Modes;Qi Wang et al.;《Sensors》;20120718;第12卷;第9791-9799页 *
导模共振光学生物传感器的研究;张大伟 等;《中国光学学会2010年光学大会论文集》;20100823;第1-8页 *

Also Published As

Publication number Publication date
CN103398952A (zh) 2013-11-20

Similar Documents

Publication Publication Date Title
US8877129B2 (en) Method and device for optical detection of substances in a liquid or gaseous medium
US20070291262A1 (en) Method and Apparatus for Sharpening a Laser Image
CN103398952B (zh) 生物传感器检测中的导模共振滤波片反射率优化方法
Barshilia et al. Low-cost planar waveguide-based optofluidic sensor for real-time refractive index sensing
WO2009019619A1 (en) Microelectronic sensor device for optical examinations in a sample medium
KR20050084016A (ko) 전자기장 분포 발생 방법
Xiao et al. Print-and-stick unibody microfluidics coupled surface plasmon resonance (SPR) chip for smartphone imaging SPR (Smart-iSRP)
CN102410851B (zh) 多通道光纤表面等离子体波共振传感器
CN102288583A (zh) 透射式金属光栅耦合spr检测芯片及检测仪
CN104155266A (zh) 一种多通道并行检测表面等离子体共振生物传感器及其制备和检测方法
US20090181857A1 (en) System and method for producing a label-free micro-array biochip
WO2009078511A1 (en) Fluorescence microscope using surface plasmon resonance
Peng et al. Compact surface plasmon resonance imaging sensing system based on general optoelectronic components
CN104220862A (zh) 靶物质捕捉装置
CN101825629B (zh) 波导耦合金属光子晶体生物传感器及其检测方法
Goddard et al. 3-D printed instrumentation for point-of-use leaky waveguide biochemical sensor
EP2195657A1 (en) Sensor device for the detection of target components
TW201305549A (zh) 具金屬緩衝層之波導共振生物感測器
CN101059436A (zh) 非扫描式智能数字化集成spr检测器
Angelopoulou et al. Advances in interferometric sensors for the detection of food contaminants
Chen et al. A low cost surface plasmon resonance biosensor using a laser line generator
Zhao et al. Mass-transport limitations in spot-based microarrays
CN107064061A (zh) 超高分辨折射率仪
CN104237169B (zh) 一种基于外场调制的spr检测系统的检测方法
CN201434868Y (zh) 波导耦合金属光子晶体生物传感器

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Wang Qi

Inventor after: Tao Chunxian

Inventor after: Qian Linyong

Inventor after: Xu Banglian

Inventor after: Wang Zhenyun

Inventor after: Zhang Dawei

Inventor after: Huang Yuanshen

Inventor after: Hong Ruijin

Inventor after: Ni Zhengji

Inventor after: Sheng Bin

Inventor before: Wang Zhenyun

Inventor before: Wang Qi

Inventor before: Zhang Dawei

Inventor before: Huang Yuanshen

Inventor before: Hong Ruijin

Inventor before: Ni Zhengji

Inventor before: Sheng Bin

Inventor before: Tao Chunxian

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: WANG ZHENYUN WANG QI ZHANG DAWEI HUANG YUANSHEN HONG RUIJIN NI ZHENGJI SHENG BIN TAO CHUNXIAN TO: WANG QI QIAN LINYONG XU BANGLIAN WANG ZHENYUN ZHANG DAWEI HUANG YUANSHEN HONG RUIJIN NI ZHENGJI SHENG BIN TAO CHUNXIAN

C14 Grant of patent or utility model
GR01 Patent grant
CB03 Change of inventor or designer information
CB03 Change of inventor or designer information

Inventor after: Wang Qi

Inventor after: Tao Chunxian

Inventor after: Sun Haojie

Inventor after: Qian Linyong

Inventor after: Xu Banglian

Inventor after: Wang Zhenyun

Inventor after: Zhang Dawei

Inventor after: Huang Yuanshen

Inventor after: Hong Ruijin

Inventor after: Ni Zhengji

Inventor after: Sheng Bin

Inventor before: Wang Qi

Inventor before: Tao Chunxian

Inventor before: Qian Linyong

Inventor before: Xu Banglian

Inventor before: Wang Zhenyun

Inventor before: Zhang Dawei

Inventor before: Huang Yuanshen

Inventor before: Hong Ruijin

Inventor before: Ni Zhengji

Inventor before: Sheng Bin

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20170317

Address after: 200093 Shanghai military road, Yangpu District, No. 516

Patentee after: University of Shanghai for Science and Technology

Patentee after: Shanghai Publishing and Printing College

Address before: 200093 Shanghai military road, Yangpu District, No. 516

Patentee before: University of Shanghai for Science and Technology

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160120

Termination date: 20180813