26382
Fourier transform infrared ( FTIR ) spectroscopy , X - ray diffraction ( XRD ) , scanning electron microscopy ( SEM ) , energy dispersive spectroscopy ( EDS ) , and alizarin red staining show a strong ability to form minerals exclusively in ALP - containing hydrogels in vitro .
 alizarin red
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 alizarin red