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Porous Ti6Al4V structures were shown to be effective in supporting cell growth and new bone tissue growth , and cell based study suggested that Ti6Al4V possesses high cyto-biocompatibility .
 material: Porous Ti6Al4V structures; material: be; process characterization: cell growth; concept or principle: bone tissue growth; concept or principle: cell based study; material: Ti6Al4V; machanical property: cyto-biocompatibility
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:
 material: Porous Ti6Al4V structures; material: be; process characterization: cell growth; concept or principle: bone tissue growth; concept or principle: cell based study; material: Ti6Al4V; machanical property: cyto-biocompatibility