Holographic sensors and their production
View Patent ↗An array of discrete sensors disposed on a substrate, each sensor comprising a holographic support medium and a hologram disposed throughout the volume of the medium, whereby interaction with an analyte results in a variation of a property of the medium.
1. A method for the production of a holographic sensor, which comprises the steps of: forming a holographic support medium by the photopolymerisation of a sample of polymerisable components, wherein a region of the sample is in contact with a mask containing oxygen such that polymerization is inhibited in said region; disposing within the support medium a holographic recording material; and recording a holographic image.
2. The method according to claim 1 , wherein the mask comprises a polymer in which oxygen is dissolved.
3. The method according to claim 2 , wherein the polymer contains a fluorinated group.