Abstract: This application discloses a configuration update method for an LED display screen, a receiver card, an LED display module, and an LED display screen. The method includes: (S201) when it is detected that a receiver card is powered on, reading storage identity authentication data of the receiver card, and verifying whether the receiver card has been replaced; (S202) when it is determined that the receiver card has been replaced, outputting a configuration parameter stored in a memory to the receiver card, to update a configuration parameter of the receiver card; (S203) when it is detected that an LED display module is powered on, reading display identity authentication data of the LED display module, and verifying whether the LED display module has been replaced; and (S204) when it is determined that the LED display module has been replaced, outputting correction data of the LED display module to the receiver card.

Abstract: Disclosed are devices, systems and methods for direct measurement of polymerase activity. In one example, a device includes at least a first electrode and a second electrode, the first and second electrode being separated by a gap; and a polymerase with two attachment sites, one for attaching to the first electrode and a second for attaching to the second electrode, wherein the two attachment sites are separated by a distance of at least about 1 nm and the distance does not significantly change with conformational changes of the polymerase.

Abstract: This application discloses a configuration update method for an LED display screen, a receiver card, an LED display module, and an LED display screen. The method includes: (S201) when it is detected that a receiver card is powered on, reading storage identity authentication data of the receiver card, and verifying whether the receiver card has been replaced; (S202) when it is determined that the receiver card has been replaced, outputting a configuration parameter stored in a memory to the receiver card, to update a configuration parameter of the receiver card; (S203) when it is detected that an LED display module is powered on, reading display identity authentication data of the LED display module, and verifying whether the LED display module has been replaced; and (S204) when it is determined that the LED display module has been replaced, outputting correction data of the LED display module to the receiver card.

Abstract: A universal connection system for assembling and electrically connecting proteins to make bioelectronic detectors and logic circuits, exploiting the electronic properties of ligand-receptor interactions and the quasi metallic properties of protein interiors.