abstract an alloy and an implant having a three-dimensional structure based on such alloy. the alloy comprises a monophasic mgzn alloy containing from 2.0 wt. % zn to 6 wt. % zn, having less than 0.001 wt. % of one or more other elements with the remainder being mg. in some embodiments, the alloy is free of microgalvanic elements. in some embodiments, the alloy includes a mgznca alloy containing nanosized precipitates being less noble than the mg matrix alloy and having a zn content ranging from 3.0 wt. % zn to 6 wt. % zn and a calcium content ranging from 0.0005 wt. % to 1.0 wt. %, having less than 0.001 wt. % of one or more other elements with the remainder being mg. in other embodiments, the alloy includes a mgznca alloy containing nanosized precipitates being less noble than the mg matrix alloy, a plurality of nanosized precipitates being more noble than the mg matrix and having a zn content ranging from 3.0 wt. % zn to 6 wt. % zn, a calcium content ranging from 0.0005 wt. % to 1.0 wt. %, having less than 0.001 wt. % of one or more other elements with the remainder being mg. Patent abstract: "Adjustable degradation rate ultrapure magnesium alloy". It is an alloy and an implant that has a three-dimensional structure based on such an alloy. the alloy comprises a single phase mgzn alloy containing from 2.0 wt% zn to 6 wt% zn, which has less than 0.001 wt% of one or more other elements wherein the remainder is mg. In some embodiments, the alloy is substantially free of microgalvanic elements. in some embodiments, the alloy includes a mgznca alloy containing nanoscale precipitates that are less noble than the mg matrix alloy and which have a zn content in the range of 3.0 wt% of zn to 6 wt% of zn and a calcium content in the range of 0.0005 wt% to 1.0 wt%, having less than 0.001 wt% of one or more other elements, the remainder being mg. in other embodiments, the alloy includes a mgznca alloy containing nanodimension precipitates that are less noble than the mg matrix
