Engineering Commons^™

Lexmark Paper Redirector, Arisa Pruttianan, Ben Jamin Byers, Charles Dewey Wood, Ty Wren Koelker, Myles Hunter Smith

Faculty Publications and Other Works -- Mechanical, Aerospace and Biomedical Engineering

Several of Lexmark’s current models employ a paper path that is concentrated within the front section of the printers in order to provide easy access for internal paper jams. However, this construction introduces complications associated with the accompanying output tray, as it necessitates a backward-facing paper feed which ejects sheets away from the user. This presents an inconvenience to the consumer if there are any obstructions above the paper tray. For example, if the printer is placed inside a cubby, on a shelf, or utilizes one of Lexmark’s attachment devices, access to the printed sheets becomes greatly restricted.

As such, …

Characterization Of Physicochemical Properties Of Ivy Nanoparticles For Cosmetic Application, Yujian Huang, Scott C. Lenaghan, Lijin Xia, Jason N. Burris, C Neal Stewart Jr., Mingjun Zhang

Faculty Publications and Other Works -- Mechanical, Aerospace and Biomedical Engineering

Background

Naturally occurring nanoparticles isolated from English ivy (Hedera helix) have previously been proposed as an alternative to metallic nanoparticles as sunscreen fillers due to their effective UV extinction property, low toxicity and potential biodegradability.

Methods

This study focused on analyzing the physicochemical properties of the ivy nanoparticles, specifically, those parameters which are crucial for use as sunscreen fillers, such as pH, temperature, and UV irradiation. The visual transparency and cytotoxicity of ivy nanoparticles were also investigated comparing them with other metal oxide nanoparticles.

Results

Results from this study demonstrated that, after treatment at 100°C, there was a …