An actuating and sensing module is provided. The actuating and sensing module includes at least one sensor, at least one actuating device and a power storage member. The sensor is disposed for measuring fluid. The actuating device is disposed proximate to the sensor and is disposed for transporting the fluid. The power storage member is configured as a graphene battery and is disposed for providing power to the at least one sensor and the at least one actuating device for driving the at least one sensor and the at least one actuating device. The actuating device is driven to transport the fluid toward the sensor so as to make the fluid measured by the sensor.

A pet feeder has a pneumatic lifting system with a rotatably mounted feeding tray. A support structure has an end connected to a surface of a feeding tray located opposite another end connected to a retaining structure. A capturing structure is connected to a cylinder. The capturing structure has an upper capturing portion having a primary opening located opposite a lower capturing portion having a secondary opening. The upper capturing portion has a primary retaining lip and the lower capturing portion has a secondary retaining lip forming a track. The retaining structure is retained within the capturing structure. The retaining structure is configured to travel along the track of the capturing structure and to rotate the tray around the perimeter of the cylinder. The pet feeder can have audio capabilities, a programmable timer, a feeding alert system, and a removable tray.

A hydraulically amplified self-healing electrostatic (HASEL) actuator based on carbon-coated nanoparticles are disclosed. According to an embodiment of a present disclosure, the HASEL actuator includes a dielectric fluid, which is a liquid-type insulator that has polarity when voltage is applied, a film configured to covering the dielectric fluid and electrodes attached to both outer surfaces of the film and configured to move the dielectric fluid. And the dielectric fluid includes nanoparticles including ferroelectrics.