Investigation into the Optical Properties of Nanostructured Silica from Diatoms

Hildebrand, Mark; Palenik, Brian

doi:10.21236/ada413662

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Variation Of the Carboxylic Group In Rhodamine Stains1

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2011

2021

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Cited by 8 publications

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“…All other esters proved to be toxic and finally lethal within several hours to a few days, irrespective of the counter ion used for stabilizing the protonated form (chloride or perchlorate). For Rh 19-E (Rh 6G), these findings are congruent with studies on higher plant species and fungal cells [18,27,28] but are in contrast to experiments of Hildebrand & Palenik [29] on the pennate diatom Navicula pelliculosa.…”

Section: Variation Of the Carboxylic Group In Rhodamine Stainssupporting

confidence: 87%

Staining diatoms with rhodamine dyes: control of emission colour in photonic biocomposites

Kucki

Fuhrmann‐Lieker

2011

J. R. Soc. Interface.

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The incorporation of rhodamine dyes in the cell wall of diatoms Coscinodiscus granii and Coscinodiscus wailesii for the production of luminescent hybrid nanostructures is investigated. By systematic variation of the substitution pattern of the rhodamine core, we found that carbonic acids are considerably better suited than esters because of their physiological compatibility. The amino substitution pattern that controls the optical properties of the chromophore has no critical influence on dye uptake and incorporation, thus a variety of biocomposites with different emission maxima can be prepared. Applications in biomineralization studies as well as in materials science are envisioned.

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