About: Interaction of porphyrins with PAMAM dendrimers in aqueous solution

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Anionic 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (TPPS) and 5,10,15,20-tetrakis(4-phosphonatophenyl)porphyrin (TPPP) are bound to PAMAM dendrimer, generation 5 (G5, 128 amine terminal groups), and cationic 5,10,15,20-tetrakis(N-methylpyridynium-4-yl)porphyrin (TMPyP) and 5,10,15,20-tetrakis(a-triphenylphosphonio-p-tolyl)porphyrin (TPPTP) to PAMAM dendrimer, generation 4.5 (G4.5, 128 carboxyl terminal groups). A positive charge of G5 induces preferably the formation of H-dimers with the face-to-face arrangement of the anionic porphyrin units. Protonation of the porphyrin rings within H-dimers occurs at pH below 2.5 and is followed by changing the aggregate structure. TPPS forms edge-to-edge aligned J-aggregates with a highly ordered structure. The structure of J-aggregates formed from TPPP is more random. Whereas TMPyP is bound to G4.5 as monomer, TPPTP aggregates on the G4.5 surface. TPPTP aggregates dissociate at pH below 3 due to protonation of the porphyrin ring. Anionic 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin (TPPS) and 5,10,15,20-tetrakis(4-phosphonatophenyl)porphyrin (TPPP) are bound to PAMAM dendrimer, generation 5 (G5, 128 amine terminal groups), and cationic 5,10,15,20-tetrakis(N-methylpyridynium-4-yl)porphyrin (TMPyP) and 5,10,15,20-tetrakis(a-triphenylphosphonio-p-tolyl)porphyrin (TPPTP) to PAMAM dendrimer, generation 4.5 (G4.5, 128 carboxyl terminal groups). A positive charge of G5 induces preferably the formation of H-dimers with the face-to-face arrangement of the anionic porphyrin units. Protonation of the porphyrin rings within H-dimers occurs at pH below 2.5 and is followed by changing the aggregate structure. TPPS forms edge-to-edge aligned J-aggregates with a highly ordered structure. The structure of J-aggregates formed from TPPP is more random. Whereas TMPyP is bound to G4.5 as monomer, TPPTP aggregates on the G4.5 surface. TPPTP aggregates dissociate at pH below 3 due to protonation of the porphyrin ring. (en) V práci je popsána interakce mezi porfyriny (kationickými a anionickými) a PAMAM dendrimery generalce 5.0 a 4.5 v závislosti ma pH roztoku. (cs)
Title	Interaction of porphyrins with PAMAM dendrimers in aqueous solution Interaction of porphyrins with PAMAM dendrimers in aqueous solution (en) Interakce porfyrinů s PAMAM dendrimery ve vodném roztoku (cs)
skos:prefLabel	Interaction of porphyrins with PAMAM dendrimers in aqueous solution Interaction of porphyrins with PAMAM dendrimers in aqueous solution (en) Interakce porfyrinů s PAMAM dendrimery ve vodném roztoku (cs)
skos:notation	RIV/61388955:_____/07:00081118!RIV07-AV0-61388955
http://linked.open.../vavai/riv/strany	200;205
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/04/0426), Z(AV0Z40320502), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	-
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Zelinger, Zdeněk Kubát, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	427060
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/07:00081118
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	porphyrin; PAMAM dendrimer; aggragation (en)
http://linked.open.../riv/klicoveSlovo	aggragation porphyrin PAMAM dendrimer
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[C8A41EE1E42A]
http://linked.open...i/riv/nazevZdroje	Journal of Molecular Liquids
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Design and characterization of new photosensitizers and investigation of their interaction with target biological molecules
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	131
http://linked.open...iv/tvurceVysledku	Kubát, Pavel Lang, Kamil Zelinger, Zdeněk
http://linked.open...n/vavai/riv/zamer	Design, syntéza a charakterizace klastrů, kompozitů, komplexů a dalších sloučenin na bázi anorganických látek; mechanismy a kinetika jejich interakcí Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	0167-7322
number of pages	6 (xsd:int)

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