Matches in SemOpenAlex for { <https://semopenalex.org/work/W2007259195> ?p ?o ?g. }
Showing items 1 to 98 of
98
with 100 items per page.
- W2007259195 abstract "Porphyrins and related molecules with strong two-photon absorption (TPA) are extremely called for because of several emerging applications, including 3D optical memory, high-resolution fluorescence microscopy and photodynamic therapy. In this paper we demonstrate for the first time that an asymmetric <i>meso</i>-substitution of porphyrin macrocycle with electron-donating diphenylamino-stilbene or bis-(diphenylamino)-stilbene groups results in a drastic enhancement of intrinsic TPA cross section in the near-IR region. The cross section value amounts to 500 - 900 GM depending on substituent group and link structure, which is about 10<sup>2</sup> times the corresponding value for the unsubstituted parent molecule. Compared to symmetrical porphyrins, the TPA spectra of this series follow qualitatively the corresponding one-photon spectra. Therefore, we describe the observed TPA spectra and absolute cross section values by taking into account the change of permanent dipole moment upon excitation. A new zeroth-generation dendrimer, consisting of a porphyrin core, symmetrically <i>tertakis-meso</i>-substituted with strong TPA dendrons, reveals 7 times increase of the cross section (740 vs 110 GM) as compared to its <i>mono-meso</i>-substituted analogue. We also demonstrated an efficient singlet oxygen generation upon two-photon excitation of these new molecules, which makes them particularly attractive for photodynamic therapy." @default.
- W2007259195 created "2016-06-24" @default.
- W2007259195 creator A5006956044 @default.
- W2007259195 creator A5008622429 @default.
- W2007259195 creator A5024964845 @default.
- W2007259195 creator A5027017600 @default.
- W2007259195 creator A5034497047 @default.
- W2007259195 creator A5035104754 @default.
- W2007259195 creator A5056184786 @default.
- W2007259195 creator A5077797936 @default.
- W2007259195 date "2003-11-04" @default.
- W2007259195 modified "2023-10-12" @default.
- W2007259195 title "Strong two-photon absorption in new porphyrins with asymmetrical meso -substitution" @default.
- W2007259195 doi "https://doi.org/10.1117/12.505849" @default.
- W2007259195 hasPublicationYear "2003" @default.
- W2007259195 type Work @default.
- W2007259195 sameAs 2007259195 @default.
- W2007259195 citedByCount "4" @default.
- W2007259195 crossrefType "proceedings-article" @default.
- W2007259195 hasAuthorship W2007259195A5006956044 @default.
- W2007259195 hasAuthorship W2007259195A5008622429 @default.
- W2007259195 hasAuthorship W2007259195A5024964845 @default.
- W2007259195 hasAuthorship W2007259195A5027017600 @default.
- W2007259195 hasAuthorship W2007259195A5034497047 @default.
- W2007259195 hasAuthorship W2007259195A5035104754 @default.
- W2007259195 hasAuthorship W2007259195A5056184786 @default.
- W2007259195 hasAuthorship W2007259195A5077797936 @default.
- W2007259195 hasConcept C101075120 @default.
- W2007259195 hasConcept C120665830 @default.
- W2007259195 hasConcept C121332964 @default.
- W2007259195 hasConcept C125287762 @default.
- W2007259195 hasConcept C159985019 @default.
- W2007259195 hasConcept C173523689 @default.
- W2007259195 hasConcept C178790620 @default.
- W2007259195 hasConcept C181500209 @default.
- W2007259195 hasConcept C184779094 @default.
- W2007259195 hasConcept C185592680 @default.
- W2007259195 hasConcept C188027245 @default.
- W2007259195 hasConcept C192562407 @default.
- W2007259195 hasConcept C2777516457 @default.
- W2007259195 hasConcept C2778689049 @default.
- W2007259195 hasConcept C2779480358 @default.
- W2007259195 hasConcept C32448512 @default.
- W2007259195 hasConcept C32909587 @default.
- W2007259195 hasConcept C33062035 @default.
- W2007259195 hasConcept C520434653 @default.
- W2007259195 hasConcept C52234038 @default.
- W2007259195 hasConcept C540031477 @default.
- W2007259195 hasConcept C55637122 @default.
- W2007259195 hasConcept C62520636 @default.
- W2007259195 hasConcept C71240020 @default.
- W2007259195 hasConcept C75473681 @default.
- W2007259195 hasConcept C83581075 @default.
- W2007259195 hasConcept C91881484 @default.
- W2007259195 hasConceptScore W2007259195C101075120 @default.
- W2007259195 hasConceptScore W2007259195C120665830 @default.
- W2007259195 hasConceptScore W2007259195C121332964 @default.
- W2007259195 hasConceptScore W2007259195C125287762 @default.
- W2007259195 hasConceptScore W2007259195C159985019 @default.
- W2007259195 hasConceptScore W2007259195C173523689 @default.
- W2007259195 hasConceptScore W2007259195C178790620 @default.
- W2007259195 hasConceptScore W2007259195C181500209 @default.
- W2007259195 hasConceptScore W2007259195C184779094 @default.
- W2007259195 hasConceptScore W2007259195C185592680 @default.
- W2007259195 hasConceptScore W2007259195C188027245 @default.
- W2007259195 hasConceptScore W2007259195C192562407 @default.
- W2007259195 hasConceptScore W2007259195C2777516457 @default.
- W2007259195 hasConceptScore W2007259195C2778689049 @default.
- W2007259195 hasConceptScore W2007259195C2779480358 @default.
- W2007259195 hasConceptScore W2007259195C32448512 @default.
- W2007259195 hasConceptScore W2007259195C32909587 @default.
- W2007259195 hasConceptScore W2007259195C33062035 @default.
- W2007259195 hasConceptScore W2007259195C520434653 @default.
- W2007259195 hasConceptScore W2007259195C52234038 @default.
- W2007259195 hasConceptScore W2007259195C540031477 @default.
- W2007259195 hasConceptScore W2007259195C55637122 @default.
- W2007259195 hasConceptScore W2007259195C62520636 @default.
- W2007259195 hasConceptScore W2007259195C71240020 @default.
- W2007259195 hasConceptScore W2007259195C75473681 @default.
- W2007259195 hasConceptScore W2007259195C83581075 @default.
- W2007259195 hasConceptScore W2007259195C91881484 @default.
- W2007259195 hasLocation W20072591951 @default.
- W2007259195 hasOpenAccess W2007259195 @default.
- W2007259195 hasPrimaryLocation W20072591951 @default.
- W2007259195 hasRelatedWork W1667370324 @default.
- W2007259195 hasRelatedWork W1978879477 @default.
- W2007259195 hasRelatedWork W2000509376 @default.
- W2007259195 hasRelatedWork W2026707837 @default.
- W2007259195 hasRelatedWork W2027166195 @default.
- W2007259195 hasRelatedWork W2042430700 @default.
- W2007259195 hasRelatedWork W2091757054 @default.
- W2007259195 hasRelatedWork W2095163521 @default.
- W2007259195 hasRelatedWork W2104427898 @default.
- W2007259195 hasRelatedWork W2829096948 @default.
- W2007259195 isParatext "false" @default.
- W2007259195 isRetracted "false" @default.
- W2007259195 magId "2007259195" @default.
- W2007259195 workType "article" @default.