{"id":6098,"date":"2026-10-19T09:48:28","date_gmt":"2026-10-19T09:48:28","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-efnafraedi-sucharita-mandal\/"},"modified":"2026-10-19T09:48:28","modified_gmt":"2026-10-19T09:48:28","slug":"doktorsvorn-i-efnafraedi-sucharita-mandal","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-efnafraedi-sucharita-mandal\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed efnafr\u00e6\u00f0i – Sucharita Mandal"},"content":{"rendered":"
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Streymi:\u00a0https:\/\/www.youtube.com\/user\/HIvarp\/live<\/a><\/p>\n

Doktorsefni:<\/strong>\u00a0Sucharita Mandal<\/p>\n

Heiti ritger\u00f0ar:<\/strong>\u00a0St\u00f6\u00f0ugri BDPA stakeindir til m\u00f6gnunar \u00e1 kjarnaskautun (BDPA radicals with improved persistence for dynamic nuclear polarization)<\/p>\n

Andm\u00e6lendur:
<\/strong>Dr. Stef\u00e1n J\u00f3nsson, teymisstj\u00f3ri hj\u00e1 Alvotech
Dr. Bela E. Bode, d\u00f3sent vi\u00f0 University of St. Andrews, Skotlandi<\/p>\n

Lei\u00f0beinandi:<\/strong>\u00a0 Dr.Snorri \u00de\u00f3r Sigur\u00f0sson, pr\u00f3fessor vi\u00f0 Raunv\u00edsindadeild H\u00e1sk\u00f3la \u00cdslands<\/p>\n

Einnig \u00ed doktorsnefnd:<\/strong>
<\/strong>Dr. Gu\u00f0mundur G. Haraldsson, pr\u00f3fessor vi\u00f0 Raunv\u00edsindadeild H\u00e1sk\u00f3la \u00cdslands
Dr. M\u00e1r M\u00e1sson, pr\u00f3fessor vi\u00f0 Lyfjafr\u00e6\u00f0ideild H\u00e1sk\u00f3la \u00cdslands<\/p>\n

Doktorsv\u00f6rn st\u00fdrir:<\/strong>\u00a0 Dr. Oddur Ing\u00f3lfsson, pr\u00f3fessor og varadeildarforseti Raunv\u00edsindadeildar H\u00e1sk\u00f3la \u00cdslands<\/p>\n

\u00c1grip<\/strong><\/p>\n

M\u00f6gnun \u00e1 kjarnskautun (e. dynamic nuclear polarization, DNP) er mikilv\u00e6g a\u00f0fer\u00f0 til a\u00f0 auka styrkleika merkja \u00ed kjarnsegulgreiningu (e. nuclear magnetic resonance, NMR) me\u00f0 \u00fev\u00ed a\u00f0 flytja skautun \u00e1 rafeindaspunum \u00f3para\u00f0ra rafeinda yfir \u00e1 kjarna sem m\u00e6la skal. St\u00f6\u00f0ugar kolefnisstakeindir, til a\u00f0 mynda tr\u00edtyl e\u00f0a 1,3-bistv\u00edfen\u00fdlen-2-fen\u00fdlall\u00fdl (BDPA), eru skautunarefni sem lofa g\u00f3\u00f0u fyrir DNP \u00ed sterku segulsvi\u00f0i. \u00dea\u00f0 sem BDPA hefur fram yfir tr\u00edtyl er au\u00f0veldari efnasm\u00ed\u00f0, en l\u00e1g leysni \u00ed vatni kemur \u00ed veg fyrir notkun \u00feess fyrir ranns\u00f3knir \u00e1 byggingum l\u00edfefna. \u00deessi doktorsritger\u00f0 l\u00fdsir h\u00f6nnun og efnasm\u00ed\u00f0i BDPA stakeinda sem eru leysanlegar \u00ed vatnslausnum og hafa aukinn st\u00f6\u00f0ugleika. \u00cd fyrsta hlutanum er l\u00fdst n\u00fdjum fosf\u00f3ester-aflei\u00f0um BDPAstakeinda. \u00dea\u00f0 kom \u00e1 \u00f3vart a\u00f0 \u00feessar n\u00fdju BDPA stakeindir, og BDPA stakeindir almennt, voru \u00f3st\u00f6\u00f0ugar. \u00dev\u00ed voru ranns\u00f6ku\u00f0 \u00e1hrif mismunandi \u00fe\u00e1tta \u00e1 st\u00f6\u00f0ugleika BDPA stakeindanna. Ni\u00f0urbrot stakeindanna \u00e1 f\u00f6stu formi var raki\u00f0 til s\u00farefnis en s\u00fdnt var fram \u00e1 a\u00f0 ni\u00f0urbrot \u00ed lausn v\u00e6ri vegna myndunar \u00e1 BDPA tvenndum. \u00cd \u00f6\u00f0rum hluta ritger\u00f0arinnar er n\u00fdjum flokki BDPA stakeinda l\u00fdst sem innihalda tetraalk\u00fdl\/ar\u00fdl amm\u00f3n\u00edum h\u00f3pa og eru leysanlegar \u00ed vatnlausnum. \u00dear a\u00f0 auki eru \u00feessar stakeindir t\u00f6luvert st\u00f6\u00f0ugri vegna takmarka\u00f0rar myndun tvennda. Einnig voru sm\u00ed\u00f0a\u00f0ar \u00ferj\u00e1r BDPA-n\u00edtrox\u00ed\u00f0 tv\u00edstakeindir til notkunar sem skautunarefni fyrir DNP. Tenglarnir \u00e1 milli stakeindanna voru af mismunandi lengd sem lei\u00f0ir til breytileika \u00ed spuna-spuna v\u00edxlverkun og \u00fear me\u00f0 mismunandi DNP eiginleika. \u00deessar tv\u00edstakeindir hafa alla bur\u00f0i til a\u00f0 n\u00fdtast vel sem skautunarefni til ranns\u00f3kna \u00e1 l\u00edfefnum me\u00f0 DNP NMR litr\u00f3fsgreiningu \u00ed sterku segulsvi\u00f0i.<\/p>\n

Um doktorsefni\u00f0<\/strong><\/p>\n

Sucharita Mandal f\u00e6ddist \u00ed Vestur-Bengal \u00e1 Indlandi 1990. H\u00fan \u00fatskrifa\u00f0ist me\u00f0 BS-gr\u00e1\u00f0u \u00ed efnafr\u00e6\u00f0i fr\u00e1 H\u00e1sk\u00f3lanum \u00ed Kolkata \u00e1ri\u00f0 2012. \u00c1ri\u00f0 2014 \u00fatskrifa\u00f0ist h\u00fan me\u00f0 meistaragr\u00e1\u00f0u \u00ed efnafr\u00e6\u00f0i fr\u00e1 Indian Institute of Technology \u00ed Kanpur. Sama \u00e1r flutti h\u00fan til Reykjav\u00edkur og h\u00f3f doktorsn\u00e1m undir handlei\u00f0slu Snorra \u00de\u00f3rs Sigur\u00f0ssonar, pr\u00f3fessors vi\u00f0 Raunv\u00edsindadeild.<\/p>\n<\/div><\/div>","protected":false},"featured_media":1873,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_phd_date_start":"2020-12-15T10:00:00+00:00","_phd_date_end":"2020-12-15T12:00:00+00:00","_phd_location":"Ver\u00f6ld - H\u00fas Vigd\u00edsar Stofa 023","_phd_admission":"A\u00f0gangur \u00f3keypis","_phd_thesis_title":"St\u00f6\u00f0ugri BDPA stakeindir til m\u00f6gnunar \u00e1 kjarnaskautun (BDPA radicals with improved persistence for dynamic nuclear polarization)","_phd_source_url":"https:\/\/gamli.hi.is\/vidburdir\/doktorsvorn_i_efnafraedi_sucharita_mandal","_phd_source_node_id":"371429","_phd_source_type":"vidburdir","_phd_member_id":502,"footnotes":""},"phd_school":[101,93],"phd_discipline":[102],"class_list":["post-6098","phd_defence","type-phd_defence","status-publish","has-post-thumbnail","hentry","phd_school-raunvisindadeild","phd_school-verkfraedi-og-natturuvisindasvid","phd_discipline-phd-i-efnafraedi"],"_links":{"self":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6098","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence"}],"about":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/types\/phd_defence"}],"version-history":[{"count":0,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6098\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media\/1873"}],"wp:attachment":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media?parent=6098"}],"wp:term":[{"taxonomy":"phd_school","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_school?post=6098"},{"taxonomy":"phd_discipline","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_discipline?post=6098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}