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Porous Ti6Al4V scaffolds were found performing well in animal models since induced new bone growth and osseointegration were achieved on both bare and surface-coated porous Ti6Al4V structures .
 machanical property: Porous; engineering feature: scaffolds; concept or principle: bone growth; machanical property: osseointegration; material: surface-coated porous Ti6Al4V structures
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 machanical property: Porous; engineering feature: scaffolds; concept or principle: bone growth; machanical property: osseointegration; material: surface-coated porous Ti6Al4V structures