Patent Number: 
Section: claims

1. A method for preparing a scandium nano-radiopharmaceutical, comprising:forming a plurality of scandium-encapsulated dendrimers by encapsulating scandium in polyamidoamine (PAMAM) dendrimers with amine surface groups, comprising:forming a Sc3+-PAMAM solution through mixing a Sc(NO3)3 solution with a PAMAM solution; andforming a solution of the plurality of scandium-encapsulated dendrimers by reducing the Sc3+-PAMAM solution; andforming a scandium nano-radiopharmaceutical by bombarding neutrons towards the scandium-encapsulated dendrimers. 2. The method according to claim 1, wherein bombarding neutrons toward the scandium-encapsulated dendrimers comprises bombarding neutrons towards the scandium-encapsulated dendrimers with a neutron flux between 3×1011 and 5×1011 n·cm−2·s−1. 3. The method according to claim 2, wherein bombarding neutrons toward the scandium-encapsulated dendrimers comprises bombarding neutrons towards the scandium-encapsulated dendrimers in a time period of less than 3 hours. 4. The method according to claim 1, wherein forming the plurality of scandium-encapsulated dendrimers by encapsulating scandium in the polyamidoamine (PAMAM) dendrimers further comprises drying the solution of the plurality of scandium-encapsulated dendrimers. 5. The method according to claim 1, wherein the Sc(NO3)3 solution comprises Sc(NO3)3 with a concentration of 20 mM. 6. The method according to claim 1, wherein the PAMAM solution comprises PAMAM dendrimers with a concentration of 0.01 mM. 7. The method according to claim 1, wherein the PAMAM solution comprises PAMAM dendrimers with a generation of at least 4. 8. The method according to claim 1, wherein the PAMAM solution comprises PAMAM dendrimers with amine surface groups. 9. The method according to claim 1, wherein the Sc3+ is present in the Sc3+-PAMAM solution with an amount of between 50 and 60 Sc3+ ions per PAMAM dendrimer. 10. The method according to claim 1, wherein forming the solution of the plurality of scandium-encapsulated dendrimers through reducing the Sc3+-PAMAM solution comprises:adjusting pH of the Sc3+-PAMAM solution to a pH between 6 and 8;forming a solution of the plurality of scandium-encapsulated dendrimers by adding a reducing agent to the Sc3+-PAMAM solution with adjusted pH; andadjusting pH of the solution of the plurality of scandium-encapsulated dendrimers to a pH between 2 and 4. 11. The method according to claim 1, wherein the scandium nano-radiopharmaceutical comprises one of scandium-47 (47Sc) and scandium-46 (46Sc).