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This chapter reviews bioengineered human hair follicles and discusses the pros and cons of different 3-D bioprinting methods, but reports no new experimental findings.

This review highlights advancements in 3D bioprinting for skin tissue engineering, focusing on exosome-loaded bioinks that show potential for enhancing skin regeneration and repair.

This review discusses 3D printing developments in topical delivery systems, highlighting the potential for 3D printed microneedles to become prominent in personalized cosmetic applications, but reports no new experimental results.

In this study, tubular 3D bioprinted structures made from sodium alginate and gelatin, containing NIH/3T3 fibroblast cells, demonstrated the ability for cell growth and network formation over 6 weeks, although structural tensile strength decreased with cell growth and polymer degradation.

This study developed and tested continuous implanters for dermal papilla cell aggregates, finding that the bar-cartridge type implanter is the most effective design for continuous cell implantation in androgenetic alopecia research.

In this study, researchers successfully developed a 3D printed alginate-gelatin composite hydrogel scaffold characterized by high porosity and potential applications in drug delivery and screening, particularly for neurodegenerative diseases like Alzheimer's.

This study developed granular hydrogels with reversible interparticle cross-linking, finding they offer high mechanical stability and enhance cell recruitment, making them promising for injectable and 3D printable scaffolds in tissue engineering and therapeutic delivery.

This source reviews the potential of 3D printing, biomaterials, and smart sensors in tissue engineering, noting their application in creating artificial membranes for skin and tissue regeneration and assessing their strengths and limitations for wound dressing development and disease modeling.

This study used 3D bioprinting to implant epidermal stem cells, skin-derived precursors, and Matrigel into mouse wounds, successfully regenerating hair follicles and skin components within four weeks, with minimal impact on stem cell viability and stemness.

This review discusses the development and findings of 3D human skin models for studying melanocyte homeostasis and melanoma progression but reports no new clinical results.

This review discusses recent advancements in bone tissue engineering, emphasizing a shift from passive to smart responsive antibacterial strategies to prevent implant-associated infections, and highlights AI's role in optimizing bone scaffold design for personalized, infection-free implants.

This new method makes checking for female infertility less painful, less invasive, and doesn't use radiation.

This review explores recent advancements in skin tissue engineering using 3D bioprinting, discussing current methods, bioink formulations, and outlining both achievements and limitations without presenting new clinical results.

In this study, researchers developed a custom-designed 3D-printed microscope stage insert for inverted confocal microscopes, enhancing the accessibility of long-term intravital imaging of live cell dynamics in live transgenic mice, particularly in the skin.

This abstract discusses the transformative impact of digital technologies like 3D scanning and intraoral imaging in dentistry, emphasizing their role in enhancing implant placement precision and root canal treatments, which can improve treatment processes and patient outcomes.

This study describes a new radiation method called three-dimensional moving field radiation therapy, which showed improved tumor targeting and reduced damage to surrounding tissues compared to traditional one-plane methods.

This study found that GelMA/HAMA bioink shows promise for 3D printing skin equivalents, as it effectively mimics the native skin's properties and supports hair follicle structure development.

3D-printed hair follicles could revolutionize hair loss treatments by providing unlimited hair grafts.

This study constructed a 3D-printed scaffold using sodium alginate, gelatin, and alginate lyase hydrogel, which supports hair follicle regeneration in artificial skin, suggesting a promising strategy for tissue-engineered skin with functional appendages.

In this study, researchers demonstrated that using 3D spheroid formation and genetic modification significantly enhanced the hair-inducing capacity of human dermal papilla cells in engineered skin constructs.

This study found that a 3D Matrigel culture technique for dermal papilla cell spheroids can enhance hair follicle inductivity and induce hair-like fiber differentiation in vitro, even with high-passage cells.

This study introduces a magnet-assisted fabrication strategy for creating complex 3D soft bioscaffolds, demonstrating its effectiveness by producing structures with overhangs and supporting biohybrid actuators, promising advancements in biomedical applications.

This study developed a 3D computational model to simulate how skin, fat, and muscle deform under suction, reporting that as suction pressure increased, skin thickness decreased, while fat thickness increased, and muscle thickness remained stable, closely aligning with experimental results.

This review introduces a framework to integrate bioinspired conductive materials and advanced 3D/4D printing in regenerative medicine for dynamic, responsive tissue regeneration, emphasizing the potential of smart scaffolds to adapt to physiological cues.

In this mouse study, researchers reported that a 3D bioprinted hydrogel scaffold containing adipose-derived mesenchymal stem cells and nitric oxide enhanced burn wound healing by promoting neovascularization through the VEGF signaling pathway.

This review highlights the potential of 3D bioprinting in developing functional, patient-specific artificial skin, addressing limitations of traditional skin grafts and advancing regenerative medicine applications.

Three-dimensional culture helps dermal papilla cells grow new human hair follicles.

This study found that heart-inspired hollow hydrogel-based scaffolds enhanced regenerative capability in osteoporotic bone defects and increased cell number when using a mechanical-assisted post-bioprinting strategy.

This review discusses how advancements in biomaterial engineering and 3D bioprinting are transforming skin wound-healing therapies, highlighting innovations in bioinks and the evolving global market potential of these technologies for developing next-generation skin substitutes.