9663
Adsorption of CAL B to PMMA in QCM - D under varied buffer ionic strengths produces a viscoelastic enzyme surface that becomes more rigid as ionic strength increases .
 Chemical: PMMA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: PMMA