OBJECTIVE To develop a piezoelectric crystal DNA sensor of Leishmania protozoan METHODS The DNA sensor was prepared by immobilizing DNA probe on surface of piezoelectric quartz crystal.

• 方法对压电石英晶体表面进行处理并结合上探针DNA制成DNA传感器,在不同的杂交时间和杂交浓度条件下测定其频率响应。