This study introduces a method for synthesizing electrically conductive hydrogels by incorporating a self-assembled, percolating graphene network. Our approach differs from previous approaches in two crucial aspects: using pristine graphene rather than graphene oxide and self-assembling the percolation network rather than creating random networks by blending. We use pristine graphene at an oil-water interface to stabilize a water-in-oil emulsion, successfully creating hydrogel foams with conductivities up to 15 mS m and tunable porosity.
View Article and Find Full Text PDFHexagonal boron nitride (hBN) is a two-dimensional material isoelectric to graphene. It has a hexagonal structure with alternating boron and nitrogen atoms and is electrically insulating, thermally conductive, and chemically inert. However, like graphene, its use as a functional nanofiller requires exfoliation.
View Article and Find Full Text PDFPurpose: Patients present with sexual and reproductive health needs in a variety of clinical settings, so knowing when and how to elicit a relevant sexual history is critical in any specialty. This work examined whether reinforcing the surgical relevance of sexual health with an integrated training improved third-year medical students' sexual history-taking.
Method: Third-year surgery clerkship standardized patient assessments were video coded from a 2021-2022 comparison and 2022-2023 intervention cohort (University of Louisville School of Medicine).
J Environ Manage
November 2024
Protected areas such as national parks constitute an increasing land mass globally, but these areas are under increasing threat from climate change events such as drought, flooding, and bushfires. The recent Yosemite National Park fires in California provide an example of this issue. After any such disaster, authorities will need to restore those protected areas to their former state at significant costs within any public funding cycle.
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