Compositions comprising various proteorhodopsins and/or...

A - Human Necessities – 61 – K

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A61K 38/17 (2006.01) C07K 14/705 (2006.01)

Patent

CA 2569367

The present invention provides a solid material comprising an immobilized mixture of two or more proteorhodopsins, two or more bacteriorhodopsins, or one or more bacteriorhodopsin and one or more proteorhodopsins. The proteorhodopsins are selected from the group consisting of all-trans-retinal- containing proteorhodopsins and retinal analog-containing proteorhodopsins; all of which have absorption spectra that do not overlap. The bacteriorhodopsins are selected from the group consisting of all-trans-retinal- containing bacteriorhodopsins and retinal analog-containing bacteriorhodopsins; all of which have absorption spectra that do not overlap. The present invention also provides an optical information carrier, such as an optical data storage material and a fraud-proof optical data carrier, comprising the above-described solid material and a substrate selected from the group consisting of glass, paper, metal, fabric material, and plastic material, wherein said solid material is deposited on said substrate. The present invention further provides security ink comprising one or more hydrophilic polymers and a mixture of various photochromic materials.

La présente invention concerne une matière solide contenant un mélange immobilisé d'au moins deux protéorhodopsines, d'au moins deux bactériorhodopsines ou d'au moins une bactériorhodopsine et d'au moins une protéorhodopsine. Ces protéorhodopsines sont sélectionnées parmi le groupe composé de protéorhodopsines contenant du tout transrétinal et des protéorhodopsines contenant un analogue rétinal, toutes possédant un spectre d'absorption qui ne se chevauche pas. Ces bactériorhodopsines sont sélectionnées parmi le groupe composé de bactériorhodopsines contenant du tout transrétinal et de bactériorhodopsines contenant un analogue rétinal, toutes possédant un spectre d'absorption qui ne se chevauche pas. Ladite invention concerne aussi un support d'information optique, tel qu'un matériel de stockage de données optique et un support de données optique protégé qui renferme la matière solide susmentionnée et un substrat sélectionné parmi le groupe englobant le verre, le papier, le métal, le tissu et la matière plastique, ladite matière solide étant déposée sur ledit substrat. Cette invention a également pour objet une encre sécurisée contenant au moins un polymère hydrophile et un mélange de diverses matières photochromiques.

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