Art and Design Commons^™

Formulating 3-Chloropropyltriethoxysilane Modified Silica Nanoparticle Sprays As Hydrophobic Transparent Coatings Onto Cotton Textiles, Mikaela C. S. Mendoza, Gilbert U. Yu

Chemistry Faculty Publications

Cotton textiles were transformed into hydrophobic fabrics via the application of 3-chloropropylthriethoxysilane-functionalized silica nanoparticle spray coatings. Silica particles were measured to be < 50 nm, as determined by dynamic light scattering (DLS). The incorporation of hexadecyltrimethylammonium bromide (HTAB), a surfactant, into the nanosilica alcohol-based sprays resulted in a suspension that was stable for at least a week. Stability and turbidity tests of samples point to smaller particle size (silica nanoparticles = 24.3 ± 8.5 nm) as the main contributor to possibly providing transparency, as evidenced when sprayed in colored (black) textiles, while still contributing to hydrophobicity/ superhydrophobicity of the cloth.

Acid Catalyzed Small Ring Alcohols And Alkenes: An Artistic Approach To Visualizing Relationships Between Features Produced By Uv-Visible Spectra, Madeleine Ware

Campus Research Day

Madeleine Ware

Research Description

Campus Research Day

My physical organic chemistry research was supervised by Dr. Mitch Menzmer who studies the formation of carbocation intermediates in acid-catalyzed reactions of alkylated and non-alkylated small ring alcohols. The goal of my work was to compile data and develop methods to search for relationships between the initial structures of molecules analyzed and the wavelengths of maximum absorbance for features observed within a given spectrum. In addition, my advisor from the School of Visual Art and Design, Associate Professor Marc Boyson, contributed to this process by providing insights about the way information could be …

Chemistry Meets Art: Instrumental Analysis At The Lcva, James Rakes, Mia Arrieta, Kaleigh Beale, Adonel Grubb

Spring Showcase for Research and Creative Inquiry

This project is an ongoing collaboration between the Longwood chemistry program and the Longwood Center for the Visual Arts. The demonstration shows the capabilities of the X-ray fluorescence spectrophotometer as a non-destructive elemental analysis technique. Our class visited the LCVA to analyze several pieces in their art collections. We were able to utilize the XRF instrument to analyze the elemental composition of glass and metal, painted pottery and porcelain, oil paintings, and metals. This project lays the groundwork for further research using X-ray fluorescence for non-destructive chemical analysis.

Structure Of Blood Coagulation Factor Viii In Complex With Anti-C2 Domain Inhibitory Antibody, Estelle K. Ronayne, Shaun C. Peters, Joseph Gish, Celena Wilson, H. Trent Spencer, Christopher B. Doering, Pete Lollar, P. Clint Spiegel Jr., Kenneth C. Childers

WWU Honors College Senior Projects

Factor VIII (fVIII) is a procoagulant protein that binds to activated factor IX (fIXa) on platelet surfaces to form the intrinsic tenase complex. Due to the high immunogenicity of fVIII, generation of antibody inhibitors is a common occurrence in patients during hemophilia A treatment and spontaneously occurs in acquired hemophilia A patients. Non-classical antibody inhibitors, which block fVIII activation by thrombin and formation of the tenase complex, are the most common anti-C2 domain pathogenic inhibitors in hemophilia A murine models and have been identified in patient plasmas. In this study, we report on the X-ray crystal structure of a B …