[{"from": "human", "value": "Could you give me a brief overview of this molecule? [103Pd]"}, {"from": "gpt", "value": "The molecule is a radioisotope of the metal palladium used in brachytherapy implants or 'seed'. With a half-life of 17 days, palladium 103 administered with brachytherapy allows continuous, tumor-site specific low-energy irradiation to the tumor cell population while sparing normal adjacent tissues from radiotoxicity. (NCI04)"}]