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<p class="MsoNormal"><span style="font-size:11.0pt">Dear all,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Please join us in <a href="https://map.arizona.edu/107">
<b>Marley 230</b></a> <b>at 4:00 PM</b> <b>today </b>for a seminar presented by Dr. Cherie L. De Vore, Department of Chemical & Environmental Engineering, University of Arizona. Dr. Alonso Favela will serve as the host.
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<p class="MsoNormal"><span style="font-size:11.0pt">Zoom link: <a href="https://arizona.zoom.us/j/84253432688">
https://arizona.zoom.us/j/84253432688</a> (password: <b>SPLS2025</b>).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Refreshments will be provided in the Marley Lobby at 3:30 PM.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt">Title: Physio-Chemical & Biological Processes affecting mixed metals sorption in environmental systems: Using an Indigenous Centered Research Framework<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt">Abstract:</span></b><span style="font-size:11.0pt"> Inorganic metals like arsenic (As) and uranium (U) are present in the environment due to mining, smelting, ore processing, and industrial activities,
causing potential exposure to human health and the environment. The physical and biogeochemical characteristics of As and U affect their fate and transport in the environment. Mechanisms for addressing environmental contamination in ecosystems due to these
metals include ion exchange, adsorption, bioremediation, and advanced oxidation. Previous work has shown the potential for As and U adsorption using biopolymers, but there is a need to understand removal from environmental systems with these mixed metals and
environmentally relevant ions like phosphate. This project integrates laboratory batch experiments, geochemical modeling, spectroscopy, microscopy and microbiology tools to determine metal speciation and rate of adsorption onto biotic and abiotic biopolymers
at pH 4 and 6 under surface oxidizing conditions. Biogeochemical insights gained from this project will help us differentiate between abiotic and biotic processes involved in the removal of mixed metals in environmental systems near rural communities impacted
by contamination.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt">Bio: </span></b><span style="font-size:11.0pt">Dr. Cherie De Vore, Diné, is from the community of Crownpoint, NM in eastern Diné (Navajo) Nation. Her clans are Red Bottom People, Atop the Mountain Towering
House, Salt People and Tangle People. She received her Ph.D. in civil & environmental engineering at the University of New Mexico under the mentorship of Professor José Cerrato. She was awarded a National Science Foundation Earth Science Postdoctoral Fellowship
to conduct research at Stanford University from 2020 to 2023. Her interdisciplinary research examined ecological post-fire recovery in metal-rich and non-serpentine wildland landscapes in California. Cherie was also an associate postdoctoral fellow at SLAC
National Accelerator Laboratory investigating colloidal transport of metals in the Floodplain Hydro-Biogeochemistry research focus group. Her current work investigates biogeochemical mechanisms that affect the accumulation of metals and microbial community
changes in areas impacted by inorganic contaminants and wildfires. Dr. De Vore leads the
<i>Níhí </i>Biogeochemistry Environmental Engineering laboratory group as Assistant Professor in the Department of Chemical & Environmental Engineering at UA. Cherie is also an associate faculty member of the Indigenous Resilience Center and looks forward to
working with communities in Arizona on environmental restoration research. Cherie enjoys archery, martial arts, playing/collecting records, and participating in ceremonies at home.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Courier New";mso-ligatures:none">===============================================================<br>
</span><b><span style="font-size:20.0pt;font-family:"Vladimir Script";mso-ligatures:none">Zhongguo Xiong</span></b><span style="font-size:10.0pt;font-family:"Courier New";mso-ligatures:none"> <br>
School of Plant Sciences BIO5 Institute<br>
BIO5 Email: <span style="color:blue"><a href="mailto:zxiong@arizona.edu"><span style="color:blue">zxiong@arizona.edu</span></a></span>
<br>
Phone: (520)-621-9869<br>
Forbes 303, P.O. box 210036 Fax: (520)-621-7186<br>
University of Arizona <br>
Tucson, AZ 85721-0036 <span style="color:blue"><a href="http://ag.arizona.edu/~zxiong"><span style="color:blue">http://ag.arizona.edu/~zxiong</span></a></span><br>
===============================================================</span><span style="font-size:11.0pt;mso-ligatures:none"><o:p></o:p></span></p>
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