12847
The confined channel deposition method we describe affords highly tunable orthogonal reactive concentration gradients that greatly expand the dynamic range , spatial control , and chemical versatility of the reactive silanes that can be controllably deposited .
 Chemical: silanes
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: silanes 
Answer:
 Chemical: silanes