24794
Chemical force microscopy performed with atomic force microscope tips decorated with functional groups commonly found in urinary constituents that likely mediate aggregation and attachment ( e . g . , COOH , NH2 , SH , CH3 , OH ) revealed signatures that reflect differences in the chemical affinity of these groups for the ( 001 ) and { 100 } faces of the naturally occurring hexagonal form of l - cystine single crystals and the { 110 } faces of the non - native tetragonal form .
 Chemical: COOH; Chemical: NH2; Chemical: SH; Chemical: CH3; Chemical: OH; Chemical: l - cystine
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: COOH; Chemical: NH2; Chemical: SH; Chemical: CH3; Chemical: OH; Chemical: l - cystine