Exploring Quantum Technologies in Healthcare: A Systematic Review

Quantum technologies are rapidly transforming healthcare by offering capabilities beyond classical systems across sensing, materials, and communication. Traditional quantum sensors like SQUIDs provide high sensitivity but require cryogenic cooling and fixed infrastructure, while newer platforms such as optically pumped magnetometers, NVdiamond sensors, and ultra-low-field MRI deliver portable, cryogen-free, high-resolution solutions suitable for point-of-care use. In quantum materials, toxicity concerns with cadmium-based quantum dots have accelerated the development of safer, biocompatible alternatives including carbon quantum dots, indium nanocrystals, and doped semiconductor materials, which retain strong optical performance for in vivo imaging.nwhile, the rise of quantum computing challenges classical healthcare cybersecurity, making quantum key distribution and post-quantum cryptography essential for securing medical networks and IoMT devices. For all hurdles such as hardware immaturity and regulatory gaps, emerging quantum technologies offer clear benefits in precision, scalability, safety, and data security, positioning them as fundamental elements of future healthcare systems.