Abstract: A modular and expandable 3D printer frame includes frame members to be coupled together to form a base defining an inner area. Each frame member includes at least one coupling member to removably couple the frame member to another of the frame members. The printer frame further includes first modular plates to be disposed within the inner area, and second modular plates to be disposed within the inner area and removably coupled to the first modular plates. The first and second modular plates, when coupled together, define a printer footprint.

Abstract: Coatings for enhancing performance of materials surfaces, methods of producing the coating and coated substrates, and coated condensers are disclosed herein. More particularly, exemplary embodiments provide chemical coating materials useful for coating condenser components.

Abstract: Coatings for enhancing performance of materials surfaces, methods of producing the coating and coated substrates, and coated condensers are disclosed herein. More particularly, exemplary embodiments provide chemical coating materials useful for coating condenser components.

Abstract: Disclosed is a method of fabricating a multiple degree of freedom actuator with inter-digitated electrodes including molding an electroactive polymer membrane so that a plurality of projections are formed around a cross section of an outer surface of the polymer membrane; depositing a metal electrode layer onto the outer surface of the molded membrane; and removing the plurality of projections on the outer surface on the molded membrane, thereby forming a multiple degree of freedom actuator with a plurality of inter-digitated electrodes. Also provided are actuators as well as devices (such as catheters) including such actuators formed by the disclosed methods of fabricating an actuator with multiple DOF.

Abstract: Coatings for enhancing performance of materials surfaces, methods of producing the coating and coated substrates, and coated condensers are disclosed herein. More particularly, exemplary embodiments provide chemical coating materials useful for coating condenser components.

Abstract: A self-sensing dielectric actuator system. The system has a deformable dielectric material between two electrodes. A relatively low frequency actuating signal is applied to the electrodes and thereby causes the dielectric material to deform, moving at least one electrode. A relatively high frequency sensing signal applied across the electrodes indicates how far the electrode has moved. The system may be calibrated by using a laser or other sensor to mechanically measure the amount of movement. An object may be displaced a desired distance by coupling the object to the electrode and using the sensing signal to measure how far the object has moved.

Abstract: New polymeric materials and their fabrication methods that are electrically active in terms of sensing and actuation are invented. These materials are comprised of solid-state ion-conducting materials such as polyethylene oxide (PEO) and its derivatives or imbedded in a family of mixed polymer systems such as polydivinylbenzene (DVB) and polystyrene polymers. Such materials suitably electroded with conductive materials such as gold, platinum and silver exhibit large deformation (both two and three dimensionally) under low electric fields of 10's V/mm. Conversely, if these materials are deformed, they produce 10's of mV/mm electric fields that can be used as means of sensing or electromechanical powering devices for batteries. The method of fabricating the new polymeric materials comprises the steps of providing a polyelectrolyte material, mixing the polyelectrolyte material with a conductive material and affixing at least two electrodes to the mixed polyelectrolyte material and conductive material.

Abstract: New artificial muscles and actuators, that are operated by hydrogen gas as working fluid stored interstitially in metal hydrides as a hydrogen sponge. These artificial muscles and actuators are operated both electrically and thermally. The artificial muscles and actuators have fast response, are compact/light-weight, are noiseless, and produce high-power density. They can be used for biomedical, space, defense, micro-machines, and industrial applications.

Abstract: New polymeric materials and their fabrication methods that are electrically active in terms of sensing and actuation are invented. These materials are comprised of solid-state ion-conducting materials such as polyethylene oxide (PEO) and its derivatives or imbedded in a family of mixed polymer systems such as polydivinylbenzene (DVB) and polystyrene polymers. Such materials suitably electroded with conductive materials such as gold, platinum and silver exhibit large deformation (both two and three dimensionally) under low electric fields of 10's V/mm. Conversely, if these materials are deformed, they produce 10's of mV/mm electric fields that can be used as means of sensing or electromechanical powering devices for batteries.

Abstract: New artificial muscles and actuators, that are operated by hydrogen gas as working fluid stored interstitially in metal hydrides as a hydrogen sponge. These artificial muscles and actuators are operated both electrically and thermally. The artificial muscles and actuators have fast response, are compact/light-weight, are noiseless, and produce high-power density. They can be used for biomedical, space, defense, micro-machines, and industrial applications.