Abstract: A fusion imaging gene and lentiviral expression plasmid, lentivirus and cell, and preparation methods and applications thereof are provided. The fusion imaging gene includes bioluminescence imaging gene, fluorescent protein gene and calcium imaging gene. The three genes are linked by linkers. The fusion gene is inserted into a modified lentiviral expression plasmid to obtain lentivirus particles carrying the fusion imaging gene.

Abstract: A humanoid finger mechanism includes: a finger seat; at least one proximal knuckle, located at an outer side of the finger seat; at least one middle knuckle, located at an outer side of the at least one proximal knuckle; a distal knuckle, located at an outer side of the at least one middle knuckle; a driver, located at an inner side of the finger seat; a driving cable, wherein a first end of the driving cable is connected with the driver, while a second end of the driving cable is connected with the distal knuckle after sequentially penetrating through the finger seat, the at least one proximal knuckle and the at least one middle knuckle; and a tension band, a first end of the tension band is connected with the finger seat, while a second end of the tension band is connected with the distal knuckle.

Abstract: The present disclosure provides visual tweezers, includes a first shell, a first clamping arm rotatably connected to an end portion of the first shell, a second clamping arm rotatably connected to an end portion of the first shell and forming a clamping structure with the first clamping arm, and a push block slidably connected to the first clamping arm and the second clamping arm and configured to control opening and closing angles of the first clamping arm and the second clamping arm during sliding, wherein a first sliding slot is formed in the first clamping arm; a second sliding slot is formed in the second clamping arm; an angle between an extending direction of the first sliding slot and an extending direction of the second sliding slot is an acute angle.

Abstract: The present disclosure provides visual tweezers, includes a first shell, a first clamping armrotatably connected to an end portion of the first shell, a second clamping arm rotatably connected to an end portion of the first shell and forming a clamping structure with the first clamping arm, and a push block slidably connected to the first clamping arm and the second clamping arm and configured to control opening and closing angles of the first clamping arm and the second clamping arm during sliding, wherein a first sliding slot is formed in the first clamping arm; a second sliding slot is formed in the second clamping arm; an angle between an extending direction of the first sliding slot and an extending direction of the second sliding slot is an acute angle.