Abstract: Embodiments of the present disclosure provide a cone-rod dual-modality neuromorphic vision sensor, including: a first preset quantity of voltage-mode active pixel sensor (APS) circuits and a second preset quantity of current-mode APS circuits, where each of the voltage-mode APS circuits includes a first-type photosensitive device, and each of the current-mode APS circuits includes a second-type photosensitive device. The voltage-mode APS can output a target voltage signal representing light intensity information in a target light signal. The obtained target voltage signal represents the light intensity information with a higher precision, and therefore an image with higher quality can be obtained, that is, the image has a higher signal-noise ratio.

Abstract: Embodiments of the present disclosure provide a dual-modality neuromorphic vision sensor. A first-type current-mode active pixel sensor (APS) circuit can mimic excitatory rod cells, to perceive light intensity gradient information in a target light signal, thereby improving a dynamic arrange of an image sensed by a neuromorphic, vision sensor and its shooting speed. In addition, a first-type control switch is introduced for each of non-target first-type photosensitive devices, to control the obtained light intensity gradient information, and adjust the dynamic arrange of the image sensed by the neuromorphic vision sensor, thereby adjusting the shooting speed, and realizing a reconfigurable effect A voltage-mode APS can mimic cone cells, to output a target voltage signal representing light intensity information in the target light signal, and perceive the light intensity information in the target light signal.

Abstract: The present invention relates to a wound covering with prominent biocompatible and accelerated wound-healing and its preparation method thereof. The wound covering comprises a film prepared from collagen and Dopa-containing protein—mussel adhesive protein, which is immobilized on collagen by chemical cross-linking, thus enhances the stability of protein structure and maintains the activity of collagen and mussel adhesive protein. The wound covering has excellent mechanical strength and can be trimmed into any shape; it accelerates tissue epithelisation and promotes wound healing with good biocompatibility, non-adhesive to the wound and no further wound damages.

Abstract: This invention relates to a method of enhancing the stability of electroactive polymers, redox active materials, or a composite comprising an electroactive polymer and a redox active material, which comprises depositing on the electroactive polymers, the redox active materials, or the composite, a fluoropolymer by radio frequency sputtering. The invention also relates to electroactive polymers, redox active materials, or a composite comprising an electroactive polymer and a redox active material, that bears a radio frequency sputtered fluoropolymer coating.

Abstract: This invention relates to a method of enhancing the stability of electroactive polymers, redox active materials, or a composite comprising an electroactive polymer and a redox active material, which comprises depositing on the electroactive polymers, the redox active materials, or the composite, a fluoropolymer by radio frequency sputtering. The invention also relates to electroactive polymers, redox active materials, or a composite comprising an electroactive polymer and a redox active material, that bears a radio frequency sputtered fluoropolymer coating.