Detection of sites of infection in mice using 99mTc-labeled PN2S-PEG conjugated to UBI and 99mTc-UBI: a comparative biodistribution study

99mTc-PN2S-PEG-UBI proved to be as effective as 99mTc-UBI in detecting sites of infection; however, the well-defined chemical structure of 99mTc-PN2S-PEG-UBI makes it a better candidate for clinical imaging of infection.