11772
Here the uptake and intracellular delivery of disc - shaped zeolite L nanocrystals as porous aminosilicates with well - defined crystal structure , uncoated as well as with COOH - , NH ( 2 ) - , polyethyleneglycol ( PEG ) - and polyallylamine hydrochloride ( PAH ) surface coatings are reported .
 Chemical: zeolite L; Chemical: aminosilicates; Chemical: COOH -; Chemical: NH ( 2 ) -; Chemical: polyethyleneglycol; Chemical: PEG; Chemical: polyallylamine hydrochloride; Chemical: PAH
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: zeolite L; Chemical: aminosilicates; Chemical: COOH -; Chemical: NH ( 2 ) -; Chemical: polyethyleneglycol; Chemical: PEG; Chemical: polyallylamine hydrochloride; Chemical: PAH