BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Chicago BEGIN:DAYLIGHT DTSTART:20230312T030000 TZOFFSETFROM:-0600 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:CDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20231105T010000 TZOFFSETFROM:-0500 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:CST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20231002T215828Z UID:E2ACCF52-4BBB-4108-93CE-E58504BE6EAE DTSTART;TZID=America/Chicago:20230928T190000 DTEND;TZID=America/Chicago:20230928T201500 DESCRIPTION:Magnetic nanowires can be engineered using composition and shap e\, and by modulating both of these along their axes (10nm-100um) or their diameters (10-200nm). This talk will discuss applications of both single nanowires and arrays of vertically aligned nanowires in biomedical fields\ , such as nano-barcodes\, and biolabels for cells and exosomes\, nano-heat ers for hyperthermia therapy and organ preservation\, and biocomposites. F or most of these applications\, the reversal mechanism of magnetization ca n play a critical role.\n\nFor example\, magnetic coercivity and remanence has been used for contact-free readout of nano-barcode signatures\, and t he motion of domain walls can limit heating. Magnetic reversal typically o ccurs by uniform precession and coherent rotation or by domain walls that are transverse or vortices. Here\, a novel approach to decoding specific r eversal signatures will be described via a fast modification of the first order reversal curve (FORC) technique\, called the projection method. In a ddition to decoding\, the method elucidates the mechanisms of reversal whi ch is of interest to the fundamental understanding of nanomagnets and can lead to improved future devices\, such as decoding using ferromagnetic res onance (FMR) .\n\nBy understanding the nanomagnetics\, these nanowires hav e been used individually to isolate biospecies\, such as cancer cells and tumor-derived exosomes (TEXs) for fundamental studies in medicine. As nano scale objects\, nanowires have also been suspended in cryopreservation age nts to provide the rapid\, uniform nanowarming needed to restore preserved tissues and organs.\n\nFinally\, by aligning nanowires vertically in bio- friendly polymers\, applications such as internal band-aids can be coded o r functionalized for personalized health care.\n\nCo-sponsored by: Univers ity of Minnesota - College of Science & Engineering\n\nSpeaker(s): Beth \, \n\nVirtual: https://events.vtools.ieee.org/m/374978 LOCATION:Virtual: https://events.vtools.ieee.org/m/374978 ORGANIZER:rjerland@ieee.org SEQUENCE:8 SUMMARY:Bioapplications of Magnetic Nanowires: Barcodes\, Heaters\, Biocomp osites URL;VALUE=URI:https://events.vtools.ieee.org/m/374978 X-ALT-DESC:Description: <br /><p>Magnetic nanowires can be engineered using composition and shape\, and by modulating both of these along their axes (10nm-100um) or their diameters (10-200nm).&nbsp\; This talk will discuss applications of both single nanowires and arrays of vertically aligned nan owires in biomedical fields\, such as nano-barcodes\, and biolabels for ce lls and exosomes\, nano-heaters for hyperthermia therapy and organ preserv ation\, and biocomposites. For most of these applications\, the reversal m echanism of magnetization can play a critical role.&nbsp\;</p>\n<p>For exa mple\, magnetic coercivity and remanence has been used for contact-free re adout of nano-barcode signatures\, and the motion of domain walls can limi t heating. Magnetic reversal typically occurs by uniform precession and co herent rotation or by domain walls that are transverse or vortices.&nbsp\; Here\, a novel approach to decoding specific reversal signatures will be described via a fast modification of the first order reversal curve (FORC) technique\, called the projection method. In addition to decoding\, the m ethod elucidates the mechanisms of reversal which is of interest to the fu ndamental understanding of nanomagnets and can lead to improved future dev ices\, such as decoding using ferromagnetic resonance (FMR) .</p>\n<p>By u nderstanding the nanomagnetics\, these nanowires have been used individual ly to isolate biospecies\, such as cancer cells and tumor-derived exosomes (TEXs) for fundamental studies in medicine. As nanoscale objects\, nanowi res have also been suspended in cryopreservation agents to provide the rap id\, uniform nanowarming needed to restore preserved tissues and organs.&n bsp\;</p>\n<p>Finally\, by aligning nanowires vertically in bio-friendly p olymers\, applications such as internal band-aids can be coded or function alized for personalized health care.</p> END:VEVENT END:VCALENDAR