Abstract: Functionalized zeolites, including a zeolite substrate and a self-assembled monolayer of a phosphonic acid on a surface of the zeolite substrate, are disclosed, as are methods of making and using the functionalized zeolites. The disclosed methods and compositions have various applications, including in the use of molecular sieves to separate small-molecule gases from mixtures thereof. Gas adsorption selectivities and diffusion rates of the functionalized zeolites may be tuned or selected according to the disclosed methods.

Abstract: An electronic syringe for use in administering anesthetic and the like injections or for aspirating fluids. The electronic syringe is particularly well suited in dental applications where a precise level of hand control is required. The syringe housing is a compact, pen-style arrangement that may be gripped between the middle and index fingers of the practitioner's hand which allowing for thumb-free operation. Motorized, optionally cordless, operation with speed control and data collection is also provided such that an injection can be preformed on a patient in a steady, painless, non-intimidating manner. When connected to a processing device, the data collection feature is capable of updating a patient database with the mount of anesthetic and the like injected for record keeping purposes.