@article{article7beb29e9, title = {Luminescent hybrid porphyrinosilica obtained by sol-gel chemistry}, author = {Neri, Cláudio Roberto and Calefi, Paulo Sérgio and Iamamoto, Yassuko and Serra, Osvaldo Antonio}, year = {2003}, doi = {10.1590/s1516-14392003000100013}, journal = {Materials Research} }