Pluripotent stem cells hold promise in the field of regenerative medicine. The flywheel also stored energy through regenerative braking. Newer electric locomotives use AC motor-inverter drive systems that provide for regenerative braking. Bone marrow derived stem cells have a wide array of application in regenerative medicine. The prototype was equipped with capacitors for storing the energy produced during regenerative braking. Mesenchymal stem cells are known to be essential for regenerative medicine. Energy may be regained when the train slows down via regenerative braking. It is normal practice to incorporate both regenerative and rheostatic braking in electrified systems. Some controllers add the benefit of regenerative braking. Paddle shifters are used to adjust the amount of regenerative braking. Electric scooters with regenerative braking have become popular all over the world. Langer is regarded as the founder of tissue engineering in regenerative medicine. Biodiversity fuels the resilience of ecosystems acting as a kind of regenerative insurance. Researchers are investigating the possibility of exploiting this capability for regenerative medicine. It has many branches including ecological design, ecological engineering, regenerative design, environmental design, and construction.