Abstract: The present invention relates to gel compositions comprising at least one entrapped active component.

Abstract: The present invention also relates to an anti-fouling composition comprising one or more aerogels. In one embodiment the aerogel encapsulate one or more bioactive agents. The one or more encapsulated bioactive agents can in one preferred embodiment be released from the aerogel over time. In one embodiment the encapsulated bioactive agents comprise one or more enzymes. In one preferred embodiment the anti-fouling composition comprising one or more aerogels is a coating composition.

Abstract: The present invention relates to self-polishing, anti-fouling coating compositions comprising an enzyme, methods for producing such coating compositions and uses thereof. The coating composition can comprise e.g. a pigment in which case the coating composition can be used as a painting composition. In a first aspect, the invention relates to a self-polishing anti-fouling coating composition comprising a first enzyme having anti-fouling activity, and at least one hydrolysable polymer composition capable of being non-enzymatically hydrolysed in an aqueous environment. In a further aspect there is provided a self-polishing anti-fouling coating composition comprising a first enzyme having anti-fouling activity, a second enzyme having polymer-hydrolysing activity, and at least one hydrolysable polymer composition capable of being hydrolysed by said second enzyme. In the latter case, the first enzyme does preferably not contribute to the self-polishing effect.