一种新型有机磷液晶传感器

王诗鸣; 熊兴良; 李广; 曾勇明

doi:10.13873/J.1000-9787(2014)09-0022-04

Chinese

您当前的位置：

首页 >

文章列表页 >

一种新型有机磷液晶传感器

研究与探讨 | 更新时间：2025-09-11

- 一种新型有机磷液晶传感器
- A new type of organophosphorus liquid crystal sensor
- 传感器与微系统 2014年33卷第9期页码：22-25
- 作者机构：
  
  1. 重庆医科大学附属第一医院放射科
  2. 重庆医科大学法医学与生物医学信息研究室
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目（30500125）;重庆市自然科学基金资助项目（2008BB5395）;国家临床重点专科建设项目经费资助项目
- DOI：10.13873/J.1000-9787(2014)09-0022-04
  中图分类号： TP212
- 纸质出版：2014
- 稿件说明：
移动端阅览
[1]王诗鸣,熊兴良,李广,曾勇明.一种新型有机磷液晶传感器[J].传感器与微系统,2014,33(09):22-25.

WANG Shi-ming, XIONG Xing-liang, LI Guang, et al. A new type of organophosphorus liquid crystal sensor[J]. 2014, 33(9): 22-25.
[1]王诗鸣,熊兴良,李广,曾勇明.一种新型有机磷液晶传感器[J].传感器与微系统,2014,33(09):22-25. DOI： 10.13873/J.1000-9787(2014)09-0022-04.

WANG Shi-ming, XIONG Xing-liang, LI Guang, et al. A new type of organophosphorus liquid crystal sensor[J]. 2014, 33(9): 22-25. DOI： 10.13873/J.1000-9787(2014)09-0022-04.

摘要

提出了一种新型有机磷液晶传感器

其基底表面仅由Cu2+功能化。将液晶5CB滴凃其上

利用正交偏光显微镜对传感器的光学表征进行观察。传感器的光学表征随时间逐渐从亮转为暗

且其转为全暗态所需的时间与Cu2+的浓度呈反比;当通入甲基磷酸二甲脂（DMMP）气体时

传感器呈现出逐渐从暗到亮的光学表征变化

循环通入空气和DMMP气体时交替出现的暗与亮的光学表征转变显示了其对DMMP的光学响应具有可重复性;另外

水、乙醇、甲苯和丙酮等其他干扰气体的通入则不会引起光学表征的任何变化。同时

在实验范围内（0.1

0mmol/L）

Cu2+的浓度越低

传感器对DMMP的光学响应灵敏度越高。结果表明了这种新型有机磷液晶传感器造价低廉

制作过程简易

可选择性、可重复性地应用于如DMMP等有机磷的检测中。

Abstract

A new type of organophosphorus liquid crystal sensor is proposed. Surface of substrate is functionalized only with Cu2 +. Deposit liquid crystal 5CB on substrate

optical appearance of sensor is observed by a orthometric polarized microscope. Optical appearance of sensor gradually change from bright to dark with time

and the needed time for realizing full dark increases with the decreasing concentration of Cu2 +; when exposing the sensor to DMMP vapor

optical appearance changes from dark to bright. And the optical response is proved to be reversible by the alternately darkening and brightening progress when circularly exposing to air and DMMP vapor. However

no optical change can be ob

served at other compounds like water

ethanol

acetone and toluene. At the same time

at experimental range of Cu2 +concentrations（ 0. 1

10 mmol /L）

the lower the Cu2 +concentration is

the higher the response sensitivity is. The results reveal that this new fabrication is low-cost and simple

and the liquid crystal sensor can be used in selectively and reversely detecting organophosphorus such as DMMP.

关键词

Keywords

references

Alignment of nematic liquid crystals at inorganic salt–liquid crystal interfaces [J] . Avijit Sen,BharatR. Acharya. Liquid Crystals . 2011 (4)

Using copper perchlorate doped liquid crystals for the detection of organophosphonate vapor [J] . Maricar L. Bungabong,Peng Bin Ong,Kun-Lin Yang. Sensors & Actuators: B. Chemical . 2010 (2)

A microstructure for the detection of vapor-phase analytes based on orientationaltransitions of liquid crystals [J] . S S Sridharamurthy,K D Cadwell,N L Abbott,H Jiang. Smart Materials and Structures . 2008 (1)

Use of self-assembled monolayers, metal ions and smectic liquid crystals to detect organophosphonates [J] . Kun-Lin Yang,Katie Cadwell,Nicholas L. Abbott. Sensors & Actuators: B. Chemical . 2004 (1)

Interaction of organophosphorous compounds with TiO 2 and WO 3 surfaces probed by vibrational spectroscopy [J] . Chung S Kim,Robert J Lad,Carl P Tripp. Sensors & Actuators: B. Chemical . 2001 (1)

Studies on a surface acoustic wave （SAW） dosimeter sensor for organophosphorous nerve agents [J] . M.S. Nieuwenhuizen,J.L.N. Harteveld. Sensors & Actuators: B. Chemical . 1997 (2)

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

基于Pt纳米颗粒修饰的La_0.8Sr_0.2FeO₃增强型NO传感器

基于石英晶体微天平的三价铬离子检测传感器

UHF RFID无源音频采集标签芯片

双层金光栅结构的D形光纤传感器研究

基于GR-MWCNT-Au/叉指电极的无酶碳水化合物传感器