A stent system comprising zero or more inner stents inserted into an outerstent. The inner stents and outer stent are separated and/or encapulated by aprotein-based material of a protein matrix and/or a set biocoacervate, eachcomprising one or more biocompatible proteins and one or more biocompatiblesolvents. The protein-based material may also include one or morecarbohydrates and one or more pharmacologically active agents.