26828
Hsp70 siRNA loaded chitosan - TPP carriers were prepared by ionic gelation and characterized by photon correlation spectroscopy and asymmetric flow field - flow fractionation combined with dynamic light scattering .
 Chemical: TPP
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: TPP 
Answer:
 Chemical: TPP