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Herein , we fabricated PLA/Ti composite scaffolds by FFF-based 3D printing and used thermogravimetric analysis to confirm the homogenous dispersion of Ti particles in the PLA matrix at loadings of 5–20 vol % .
 fabricated, composite, 3D printing, thermogravimetric analysis, dispersion, Ti, particles, PLA
Please list all entity words in the text that fit the category. Output format is "word1, 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:
 fabricated, composite, 3D printing, thermogravimetric analysis, dispersion, Ti, particles, PLA