The present relates in general to upconversion luminescence materials and methods of making and using same and more particularly, but not meant to be limiting, to Mn2+ doped semiconductor nanoparticles for use as UCL materials. The ion generator can be made in the form of a pendant using a standard 9-volt alkaline battery, which can last for several months of continuous operation. The coil beam further comprises a first fastener attached to the top sheet, a second fastener attached to the bottom sheet, and a string connecting the first and second fasteners. A transparent insert is positioned in the opening and is secured to at least one of the box and a portion of the gate, The portion of the gate, which may include a connector assembly, will be visible to a consumer when the packaged gate system is stacked edgewise together with like packaged gate systems on the bottom surface with the side surface facing the consumer. A method for making the subject articles and a system comprising a perforated, coextruded acoustic pipe support strap in combination with a shaped wire hanger for use in suspending a pipe segment from the web portion of a laminated joist having an I-beam cross section are also disclosed.