27103
We have employed in situ X - ray reflectivity ( IXRR ) to study the adsorption of a variety of proteins ( lysozyme , cytochrome c , myoglobin , hemoglobin , serum albumin , and immunoglobulin G ) on model hydrophilic ( silicon oxide ) and hydrophobic surfaces ( octadecyltrichlorosilane self - assembled monolayers ) , evaluating this recently developed technique for its applicability in the area of biomolecular studies .
 Chemical: silicon oxide; Chemical: octadecyltrichlorosilane
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: silicon oxide; Chemical: octadecyltrichlorosilane