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DTSTAMP:20260624T163540Z
DESCRIPTION:Dr. Zeev Rosenzweig\n\nDepartment of Chemistry and Biochemistry
 \n	University of Maryland Baltimore County\n\n'Luminescent Semiconductor Qu
 antum Dots Synthesis as Imaging and Sensing Probes and their Impact on Cel
 ls and Living Organisms in the Environment'\n\nSemiconductor quantum dots 
 were introduced as a potentially viable alternative to organic fluorophore
 s in bioimaging and sensing applications. However\, significant concerns a
 bout their toxicity have hampered progress in this area as most quantum do
 ts contain heavy metals like cadmium and lead. The potential of semiconduc
 tor quantum dots in bioimaging and sensing applications is therefore yet t
 o be optimized. Meanwhile\, luminescent quantum dots with their heavy meta
 ls have been incorporated into broadly distributed consumer electronics in
 cluding cell phones\, tablets\, TVs and light emitting displays\, and into
  solar energy and photovoltaic devices. This raises significant concerns a
 bout the potential adverse impact of luminescent quantum dots on living or
 ganisms in the environment\, particularly when these devices are disposed 
 at the end of their lifetime. This presentation will focus on the unique l
 uminescent properties of semiconductor quantum dots as bioimaging and sens
 ing probes\, as well as on recent efforts to synthesize cadmium-free lumin
 escent quantum dots with comparable functional properties to cadmium-conta
 ining quantum dots\, but with significantly reduced impact on living organ
 isms. The potential application of luminescent quantum dots as antibacteri
 al agents when combined with synthetic mimics of antibacterial peptides wi
 ll also be described.\n\n\nDr. Rosenzweig obtained his BSc and PhD in Chem
 istry from the Hebrew University of Jerusalem in 1986 and 1992\, respectiv
 ely. Following three years of postdoctoral training at Iowa State Universi
 ty and the University of Michigan\, he joined the Department of Chemistry 
 at the University of New Orleans where he developed a leading research pro
 gram in the area of luminescent biosensors. Dr. Rosenzweig served as Progr
 am Director in the US National Science Foundation Division of Chemistry be
 tween 2005 and 2014. He then joined the University of Maryland Baltimore C
 ounty as a Full Professor and Department Chair in the Department of Chemis
 try and Biochemistry\, where he developed a research and training program 
 in the area of luminescent semiconductor quantum dots and their impact on 
 natural systems.\n\nThis event is cohosted by the McGill Sustainabilty Sys
 tems Initiative (MSSI) and the Trottier Institute for Sustainability in En
 gineering and Design (TISED)\n\n \n
DTSTART:20191025T143000Z
DTEND:20191025T160000Z
LOCATION:Room 160\, Arts Building\, CA\, QC\, Montreal\, H3A 0G5\, 853 rue 
 Sherbrooke Ouest
SUMMARY:Invited Speaker: Dr. Zeev Rosenzweig
URL:https://www.mcgill.ca/mssi/channels/event/invited-speaker-dr-zeev-rosen
 zweig-301886
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