Paul, RimaRimaPaulChatterjee, DipanwitaDipanwitaChatterjeeDas Ghosh, LopamudraLopamudraDas GhoshNarayanswamy, VenkateshaVenkateshaNarayanswamySingh, Mahander PratapMahander PratapSinghAgarwal, ManishManishAgarwalGhosh, DeepshikhaDeepshikhaGhoshRadhakrishna, MithunMithunRadhakrishnaTiwary, Chandra SekharChandra SekharTiwaryProvazn�k, IvoIvoProvazn�kChattopadhyay, KamanioKamanioChattopadhyay2025-08-312025-08-312023-06-0110.1016/j.cartre.2023.1002722-s2.0-85160815295http://repository.iitgn.ac.in/handle/IITG2025/26790Carbon nanotubes have been explored in various fields of science and technology due to their unique properties. However, their toxic nature put limitations to its consideration for the bio-medical applications. In our work, we report the synthesis of paramagnetic CNT/Gd<inf>2</inf>O<inf>3</inf> hybrid nanostructures through easily scalable electrochemical deposition technique. The nanostructure has shown significant longitudinal relaxivity of 18.93 mM⁻¹s⁻¹ for water protons indicating its possibility to be used as an MRI contrast agent. The in-vitro cytotoxicity test on the normal (HaCaT) and cancerous (HeLa) cells reveal that CNT/Gd<inf>2</inf>O<inf>3</inf> hybrid nanostructure is bio-compatible in comparison to the pure CNTs, which is further supported by our theoretical studies using MD simulations.trueBiomedical application | Carbon nanotube | Gadolinium oxide | ParamagnetismArticlehttps://doi.org/10.1016/j.cartre.2023.10027226670569June 20238100272arJournal7