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J. S. Manna, S. Basu, M. K. Mitra, S. Mukherjee and G. C. Das, “Study on the Biostability of Chlorophyll a Entrapped in Silica Gel Nanomatrix,” Journal of Materials Science: Materials in Electronics, Vol. 20, No. 11, 2009, pp. 1068-1072. doi:10.1007/s10854-008-9827-6

has been cited by the following article:

• TITLE: Effect of Aging in the Structure of Silica Xerogels with Incorporation of Extract’s Leaves

  AUTHORS: José R. Martínez, Erika Espericueta, Gerardo Ortega-Zarzosa

  KEYWORDS: Fluorescence Spectra; Sol-Gel; Chlorophyll; Extract Leaves; Photosystem II

  JOURNAL NAME: New Journal of Glass and Ceramics, Vol.1 No.1, March 28, 2011

  ABSTRACT: The spectral fluorescence characteristics of extracts leaves embedded in silica xerogel matrix promoted by aged time was studied. We obtain a higher PSII stability for extract of leaves embedded in xerogel matrix, with concentration of 8 g / 20 ml and water to TEOS molar ratio of 11, which remain bioactive over a very long period of time, whereas for a water to TEOS molar ratio of 5 a blue-shift fluorescence is observed indicating the PSII denaturizing and formation of fluorescing aggregates associated with the activation of carotenoids radicals.