Disclosed herein are actuators and methods of making and actuating the same. Such actuators may comprise a body having a cavity, a membrane configured to cooperate with the cavity to form a combustion chamber, an inlet channel in fluid communication with the combustion chamber, an ignitor operable to ignite a combustible gas contained within the combustion chamber, and an outlet channel in fluid communication with the combustion chamber. The membrane may be configured to move in response to a change in pressure within the combustion chamber.