Patent ID: 9164077
Filing Date: 2015-10-20
Classification: B01L,G01N

Abstract:
1. A biological detection device used to detect a test sample in a liquid form, comprising: a substrate; a liquid crystal/polymer composite film, including a liquid crystal director and a macromolecular polymer, and the test sample being disposed on the liquid crystal/polymer composite film; an electric field unit, installed between the substrate and the liquid crystal/polymer composite film; a power supply, coupled to the electric field unit, for supplying a voltage to form an electric field, and the electric field being used for changing an orientation of the liquid crystal director to change hydrophilic and hydrophobic properties of the liquid crystal/polymer composite film to drive the test sample to move; a processing unit, coupled to the power supply, for controlling the power supply to supply the voltage to the electric field unit; and an image sensor, coupled to the processing unit, for capturing image data of a hydrophilic/hydrophobic motion of the test sample moved on a surface of the liquid crystal/polymer composite film and caused by a change of the electric field, and providing the image data to the processing unit; wherein the processing unit receives the image data, and concurrently analyzes concentrations of triglyceride and high density liposome a biological property of the test sample according to the image data, wherein the processing unit analyzes a change of data of a contact angle, a moving distance or a collapse speed of the test sample in the image data and compares the data with a reference database to determine the concentrations of triglyceride and high density liposome of the test sample; wherein the contact angle is represented by the formula: wherein θ is the contact angle, H is the concentration of high density liposome and T is the concentration of triglyceride.