There are many services 3D printing (3DP) supplies for the medical domain with a view to ameliorate and keep patients' lifetimes. 3DP in medicine has authorized customization, prototyping, industrialization, and study. The regions of implementation include surgical elaboration, prostheses, dental, 3DP of tissues and organs, medicament doses and pharmacology, and makings of medical agents and instruments. 3DP technology is conceivable utilized for manufacturing exact copies of human anatomic matters, moving a worthy function in pathology education, veterinary anatomy schooling, zoological models cloning, duplication of scarce museum samples, and printing of stem cell and tissue facts from confocal microscopic examinations. 3DP technology can be applied to surrogate human organ transplants and to make patient-definite organ duplicates that surgeons can be utilized to exercise on before implementing complex surgeries. In this paper according to Laila M. Montaser deep expertise in liver tissue engineering, might be a prospective futurity settlement to scalability of the liver transplant which may alleviate the troubles linked with the organ lack, may recovery liver failures and may outputs skillfully functional organ to be planted or applied as an instrument located out the body, as a pragmatic pattern for medicament checking, beside for the investigation of pathological diseases such as liver cancer and cirrhosis. This was the abstract of Montaser keynote invited speech which was recorded and submitted to the 3DP Conference and Expo 2020, Nov 18-20, Seoul, Korea entitled “Application of 3D printing in Regenerative Medicine”. This symposium was sponsored by the 3DP Conference and Expo Seoul - A new era of advanced manufacturing. The first day of the conference, November 18, was held as an in-person seminar in Seoul (KINTEX), Korea whereas the second day of the conference, November 19, was an on-line (recorded) seminar without gathering onsite. Her pre-recorded presentation (PowerPoint slides with her recorded voice) was broadcasted on the second day of the conference with Korean translation. This manuscript shows Montaser future vision possible bio Nanomaterial scaffolds fabricated by the two most widely used techniques, namely, electrospinning and 3DP of future directions for in situ 3D bioprinting. The aim of this paper is to highlight the attention given by a feminist scientist to in situ 3DP technology literacy of stem cells as a new, innovative and revolutionary technique.