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Survey of the Performance of 5 nm Gold Nanoparticles Within an ssDNA-Stabilized Biosensor for the Detection of Hg2+
No full textThe formation of a fluorescent biosensor complex consisting of 5 nm diameter gold nanoparticles (AuNPs) and single-stranded DNA (ssDNA) was conducted using a low-cost, efficient binding method. Furthermore, we assessed the analytical potential for the complex to detect mercury ions (Hg2+) in an aqueous solution upon collection of UV-vis and fluorescence spectrometry data for the AuNP-ssDNA complex. We aimed to investigate this potential due to the possibility that the nanoparticles formed utilizing this method would produce nanoparticles of too small a size to result in detectable fluorescence, thus the complex synthesized from this specific method was qualitatively evaluated to determine if it consistently and reproducibly provides results that would be clearly indicative of the presence of Hg2+. We discovered that samples of the mercury-bound complex did not yield a consistent fluorescence quenching for the fluorescence peak observed, as the peak height possessed a high standard deviation for the relatively small mean intensity. In addition, the methods for confirming the formation of the complex itself were not successful in showing a clear result
Fish Pond Aeration System
No full textWith high density fishponds in aquaculture, oxygen content quickly becomes depleted. Without enough oxygen in the water, a tilapia’s growth and lifetime are significantly depleted. To mitigate this risk, aeration systems have been developed to replenish oxygen consumed. In Guatemala, AgInno Institute has partnered with Olivet Nazarene University (ONU) senior design teams to develop a solar powered paddle aerator prototype.
We, the senior design team at ONU has been tasked with the implementation and optimization of the prototype system. Our team has recalculated and organized a list of materials for the solar power system is Guatemala and travelled to Chisec, Guatemala in October to implement the design. We selected solar panels, batteries, an invertor, and a charge controller to sustain the existing paddle aerator prototype. With the solar power system built and evidenced to power the paddle aerator prototype, the team is shifting into a redesign and optimization phase of the system.
Energy efficiency and aeration ability is the utmost importance in the design of a successful paddle aerator. A significant part of energy efficiency is the choice of motor. While the system currently operates with an AC motor, a DC motor will eliminate the need for an invertor in the solar power system. The selected motor must be durable and robust, able to operate continuously and withstand various weather conditions. The torque provided must also be sufficient to spin the paddles to cause ample water agitation.
With selection of a new motor, our team is also developing a final paddle design. While the existing prototype for the paddle aerator uses metal grates as paddles to decrease water resistance, the material is susceptible to rust over time. A strong, locally available material must be selected that can still be easily constructed by fish farmers in Guatemala. Design testing is ongoing with conclusions regarding a final design to be made in February.
The significance of a successful design will increase the income of fish farmers in Guatemala. The cost of all materials in design of the solar power system and the paddle aerator are heavily considered to minimize the expenses for fish farmers. The goal of the design is to improve the lives of farmers by increasing their harvest yields
Kappa Delta Pi Student Teacher Panel
No full textA group of Olivet\u27s School of Education students who have just completed their student teaching experience in the community will share thoughts, comments, and suggestions about their experience. The Student Teacher Panelists will need to be members of Kappa Delta Pi Educational Honor Society in Education and represent a variety of Teacher Education Fields.
Participants in the Student Teacher panel were: Faith Colvin, Alyssa Faurot, Sydni Smith, Ben Tabisz, Alex Harrington, and Claire O\u27Neill
Book Signing
No full textPrayer seems intimidating to many Christians. We wonder if we are doing it right, or saying the right things, or praying often enough, or in the right way. In Intimacy with God, Simone Mulieri Twibell assures us that there is absolutely no wrong way to pray. Instead, opening ourselves up to prayer is opening ourselves up to receiving and enacting the grace of God already at work in our lives to fill us even more deeply. Twibell examines prayer from a triune perspective that engages God the Father, in the name of Jesus, through the power of the Spirit. Intimacy with God invites readers to step into deeper relationship with God by considering different aspects of prayer, including seeking the will of God, interceding for others, praying in community, and listening for God\u27s unique voice guiding us toward kingdom purposes.
From https://www.amazon.com/Intimacy-God-Simone-Mulieri-Twibell/dp/083414180
School of STEM Poster Session
Get PDFLocation: Reed 2nd floor Tech Center and lobby
This poster session will include displays of work from the School of STEM - Engineering Senior Design and Freshman Design Projects along with Undergraduate Research.
Senior Design Projects
(1) Holland - Shear-Die [Nathan Marks, Nolan Paape, Seth Beyer]
(2) Aginno - Solar-Powered Fish Pond Aeration System [Hoai Do, Bella Lopez, Kendyl Clark, Megan Schroeder]
(3) Peddinghaus - Tube Conveyor [Carson Caldwell, Alisha Wright, Michael Rollberg, Rebecca Witvoet]
(4) American Institute of Chemical Engineers (AIChE) Student Design Problem [Marissa Anderson, Brady Chambers, Cam Steele]
(5) Kankakee Elks Country Club and Golf Course - Golf Course Renovations [Eric Godines, Ingamnwie Acha, Ethan Underwood, Rachel Lautermilch]
(6) Society of Automotive Engineers (SAE) Baja [Jose Villarreal, Joe Mayo, Jacob Bagley, Bryant Linhart, Matthew Blackmer]
(7) ITW Zip-Pak - Automatic Film Cut & Splicing Machine [JD Rienow, Jonathan Bodine, Dylan Miller, Kamil Siudak]
(8) McGraw - Tiny House for Universal Application to Urgent Housing Needs [Conner Dempsay, Seth Mulliniks, Joey Borelli, Cory Enfield].
Freshman Design Projects: TBD
UG Research Projects:
(1) Maddie Zagajowski, Survey of the Performance of 5 nm Gold Nanoparticles Within an ssDNA-Stabilized Biosensor for the Detection of Hg2
