PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
16220934-1	2003	We developed a simple contrasting procedure to improve the AFM visualization of single positively charged polymer chains deposited on substrates of a relatively high roughness via the decoration of the molecules with hexacyanoferrate anions or negatively charged clusters of cyanide-bridged complexes.	hexacyanoferrate II	217-233	afamin	Homo sapiens	59-62