PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18481799-5 2008 Furthermore, enhancement of the electron-withdrawing character of the phosphane oxide resulted in a significant enhancement of the two-photon absorption cross-section, leading to the first biphotonic Cd2+ sensors combining high affinity for Cd2+, large two-photon absorption cross-sections, and significant enhancement of the two-photon excited fluorescence in the presence of the cation. phosphane oxide 70-85 CD2 molecule Homo sapiens 200-203 18481799-5 2008 Furthermore, enhancement of the electron-withdrawing character of the phosphane oxide resulted in a significant enhancement of the two-photon absorption cross-section, leading to the first biphotonic Cd2+ sensors combining high affinity for Cd2+, large two-photon absorption cross-sections, and significant enhancement of the two-photon excited fluorescence in the presence of the cation. phosphane oxide 70-85 CD2 molecule Homo sapiens 241-244