Non-contact ultrasonic pipette and pipetting method thereof

• Main Authors: WANG HAOZHENG, CHU XUYANG, QIN LIFENG, XIE YU, HE XI, ZHOU WEI, WU LINJING, LUO TAO
• Format: Patent
• Language: Chinese; English
• Published: 18.07.2023
• Subjects: CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TRANSPORTING

The invention discloses a non-contact ultrasonic pipette and a pipetting method thereof. The pipette comprises a shell, a piezoelectric focusing ultrasonic probe, a semiconductor laser, a control circuit, a power supply and a trigger button, the piezoelectric focusing ultrasonic probe, the control circuit, the power supply and the trigger button are sequentially arranged along the inner wall of the shell from the liquid taking end; the two semiconductor lasers are symmetrically distributed on the two sides of the front end face of the piezoelectric focusing ultrasonic probe. The power supply is connected with the control circuit to supply power; the trigger button is connected with the control circuit so as to control the two semiconductor lasers to complete light positioning and drive the piezoelectric focusing ultrasonic probe to generate an ultrasonic field, and near-field acoustic levitation of liquid drops on the super-hydrophobic surface is achieved. According to the invention, non-contact control of li