Although a small number of studies are available that evaluate the effects of Interviewer characteristics in substance use surveys conducted in person, none have done so using information collected via telephone interviews. We address this issue by examining the utility of social attribution and social desirability models for detecting the presence of Interviewer effects In a large statewide telephone survey concerned with substance use. The specific outcome variables ofinterest were reports oflifetime and 18-month composite drug use. Analyses focus on the direct effects of Individual Interviewer characteristics (to assess social attribution) and a summary measure of interviewer-respondent similarity (to assess social distance) and employ random effects regression models to control for respondent clustering by Interviewer. Results are most consistent with a social distance model and suggest that social distance between respondent and interviewermay decrease the probability ofrespondents reporting substance use behavior.

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Historically, Roman stained glass has been a standard for high‐temperature color stability since biblical times but was not properly characterized as emission from nanoparticle plasmon resonance until the 1990s. The methods under which it was created have been lost, but some efforts have recently been made to recreate these properties using gold nanoparticle inks on glassy surfaces. This body of work employs gold nanoparticle systems ranging from 0.015% to 0.100% (wt/wt), suspended in a clear glaze body. The glazes are fired with traditional ceramic methods—in both gas reduction and electric oxidation kilns—in which nanoparticles are retained and can be imaged via TEM. Various colors intensities are reported in addition to changes in nanoparticle size after application and firing. The nanoparticle glazes are compared to traditional red glazes, highlighting the significantly lower metal loading required (5%‐10% for traditional glazes vs 0.100% for gold (wt/wt)), therein. Finally, proof of concept is provided with a functional gold nanoparticle mug, fired in reduction, that costs roughly 0.98$ USD in gold used.

An amperometric uric acid (UA) sensor incorporating a multi-walled carbon nanotubes (MWCNT) network in Nafion and electropolymerized -cyclodextrin (-CD) layer is investigated. The electrochemical sensor is comprised of a glassy carbon electrode modified with Nafion-MWCNT nanocomposite film, a -CD polymer inner selective layer, and a Hydrothane polyurethane (HPU) outer selective coating. The surface morphology and electronic structure of the electrode material are characterized using transmission electron microscopy (TEM), scanning electron microscope (SEM), and Fourier transform infrared (FTIR) spectroscopy. The electrocatalytic activity of the sensor is studied using cyclic voltammetry (CV), chronocoulometry (CC) and differential pulse voltammetry (DPV). Analytical performance of the electrochemical sensor scheme with and without MWCNT and/or -CD polymer is determined from direct UA injection during an amperometric analysis. The effective surface area is notably higher for Nafion-MWCNT coated glassy carbon electrodes, which in turn enhanced the sensitivity when coated with -CD polymer. The results indicated an excellent electrocatalytic property of Nafion-MWCNT/-CD film for UA detection with enhanced sensitivity (2.11 A•mM-1), wide linear responses over physiologically relevant concentrations, and fast response times. Enhancement is attributed to MWCNT offering increased electroactive surface area and the ability of -CD to selectively sequester UA.

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