blˈʌndɛl hɐz mˌeɪd kˌɑːntɹɪbjˈuːʃənz tə ðə stɹˈʌktʃɚɹəl baɪˈɑːlədʒi ʌv pˌɑːlɪpˈɛptaɪd hˈoːɹmoʊnz, ɡɹˈoʊθ fˈæktɚz, ɹᵻsˈɛptɚɹ ˌæktɪvˈeɪʃən, sˈɪɡnəl tɹænsdˈʌkʃən, ænd dˌiːˌɛnˈeɪ dˈʌbəlstɹˈænd bɹˈeɪk ɹᵻpˈɛɹ, sˈʌbdʒɛkts ɪmpˈoːɹtənt ɪn kˈænsɚ, tˌuːbɚkjʊlˈoʊsɪs, ænd fæmˈɪlɪəl dɪzˈiːzᵻz.
Blundell has made contributions to the structural biology of polypeptide hormones, growth factors, receptor activation, signal transduction, and DNA double-strand break repair, subjects important in cancer, tuberculosis, and familial diseases.