β-TCP scaffolds with micro/ nano surface topography | DLP printing and in situ growth crystal process | Promote osteogenic differentiation of stem cells | Rat skull defects | Improve the bone regeneration | [17] |
Micro/nano-scale titania fiber-like network on the surface of Ti implants | One-step alkaline treatment in NaOH solution | Facilitate osteogenic and angiogenic differentiation of BMSCs and endothelial cells; Suppress M1 macrophages and stimulate M2 phenotype | Rabbit femur defects | Induce ameliorative osseointegration | [21] |
MNBG/PLGA bi-layered membranes | Electrospinning | Promote osteogenesis | | | [24] |
Micro-nano rough Ti6Al4V | Acid etch process | Improve osteogenic differentiation of MSCs | | | [26] |
HA bioceramics with submicron- to nano- topographies | Sintering | Maintain the conformation of BMP-2, activate the osteogenic differentiation of BMSCs | Canine intramuscular implantation | Process excellent bone-like apatite forming ability and outstanding osteoinductivity | [28] |
HA with micro/nano hierarchical structures | Photolithography and hydrothermal techniques | Promote osteogenic differentiation of hBMSCs and angiogenic acticvity of HUVECs | | | [41] |
β-TCP/CaSiO3 composite ceramics with micro/ nano-HAp the surface layer | 3D bioplotting and hydrothermal treatment | Upregulate the cellular differentiation of mBMSCs and gene expression of HUVECs | Ectopic subcutaneous implantation at the back of rats | Promote capillary formation and bone augmentation | [45] |
PEEK/CF/n-HA ternary biocomposite with micro/ nano-topographical surface | Oxygen plasma and sandblasting | Promote the proliferation and differentiation of MG-63 cells | Dog mandibles | Boost the osseointegration between implant and bone | [73] |
Micro/nano structural silicon nitride and PEKK composite | Femtosecond laser ablation | Promote osteogenic differentiation of rBMSCs; Exhibit a greater bacteriostatic activity | Rabbit femur cavity defect | Promote osseointegration and bone repair | [75] |
Silicate-based bioceramic with micro-nano surfaces and hollow channels | 3D printing and hydrothermal treatment | Facilitate the attachment and proliferation of BMSCs | Rabbit femur defects | Boost the newly bone formation | [80] |
PLLA/CS composite scaffold with micro/nano- fiber hierarchical structure | 3D printing and thermally induced phase separation technology | Promote cell adhesion and proliferation | | | [87] |