壓電石英晶體生物傳感器是利用壓電石英晶體振蕩頻率對晶體表面質量負載和表面性狀如密度、粘度、電導、介電常數等的高度敏感性與生物識別分子的高度特異性相結合發展起來的一種新型傳感器。它具有靈敏度高、特異性好;操作簡單,不需任何標記;檢測速度快,成本低廉;能實時檢測等特點。近年來,壓電石英晶體生物傳感器在醫學實驗診斷、軍事監控、環境監測、食品衛生檢驗、工業生產實時監測等野外流動作業和在線檢測等領域得到廣泛應用。
關鍵詞: 生物傳感器; 壓電; 石英晶體
Abstract : Piezoelectric quartz crystal biosensor is a new sensor ,combining the high sensitivity to mass and sur2 face characteristics of quartz crystal , such as density , viscosity , dielectric constant , conductance with the high specificity of biologic identification molecules. It has the features of high sensitivity ,high specificity ,simple opera2 tion ,high analysis speed ,low cost , small size ,on2line detection ,etc. In recent years , It has been applied in the
fields of medical laboratory diagnosis ,military control ,environment monitor ,foods sanitary detection and industri2 al production.
Key words : biosensor ; piezoelectric ; quartz crystal