Page 209 - Book Hosokawa Nanoparticle Technology Handbook

4.2 NANOPARTICLES ARRANGED STRUCTURES FUNDAMENTALS
Table 4.2.1
Reported peptides with affinity for inorganic materials [19].
Peptide selected by phage display method Peptide selected by cell surface display method
Material Amino acid sequence Material Amino acid sequence
Gallium arsenic (GaAs) AQNPSDNNTHTH Ferric oxide (Fe 2 O 3 ) RRTVKHHVN
RLELAIPLQGSG
TPPRPIQYNHTS Gold (Au) MHGKTQATSGTIQS
LGQSGQSLQGSEKLTNG
Calcium carbonate HTQNMRMYEPWF EKLVRGMEGASLHPA
(CaCO 3 ) DVFSSFNLKHMR
Chrome oxide (Cr 2 O 3 ) VVRPKAATN
Silver (Ag) AYSSGAPPMPPF RIRHRLVGQ
NPSSLFRYLPSD
SLATQPPRTPPV Palladium oxide (PbO 2 ) YPPFHNNDHRS
SKPLARSSGA
Silica (SiO 2 ) MSPHPHPRHHHT
RGRRRRLSCRLL Cobalt oxide (CoO) GRMQRRVAH
KPSHHHHHTGAN LGKDRPHFHRS
Zinc sulfide (ZnS) NNPMHQN Manganese oxide (MnO 2 ) HHMLRRRNT
HINASQRVA
Titanium (Ti) RKLPDAPGMHTW
Zinc oxide (ZnO) NTRMTARQHRSANHKSTQRA
Carbon nanotube HWSAWWIRSNQS TRRGTHNKD
Carbon nanohorn DYFSSPYYEQLF Zeolite VKTQATSREEPPRLPSKHRPG
WPGWHHVPPAVS MDHGKYRQKQATPG
GHWHHITKVSKQ
Platinum (Pt) DRTSTWR
QSVRSTK
SSSHLNK
Palladium (Pd) SVTQNKY
SPHPGPY
HAPTPML
2
Zinc ion (Zn ) HFQAQMRHGHGH
HQSHHYGPRDHT
Fullerene (C60) NMSTVGR

(a) (b) (c) (d) 1 hour 1 day 3 days
ZnO ZnS Eu 2 O 3
Fluorescent particle
suspentions No addition
(254nm ex.)

+ + + +
ZnO ZnO ZnS Eu 2 O 3
No excitation Addition of
ZnO-binding
peptide
254nm ex.
Figure 4.2.11
254nm ex. Biomineralization of ZnO by ZnO-binding peptide.
(through 515-nm cut filter)
immobilized ZnO-binding peptide was soaked in a sus-
Figure 4.2.10 pension of fluorescent ZnS or europium oxide (Eu O ).
2
3
Immobilization of ZnO particles on a polypropylene–gold However, these plates exhibited no fluorescence when
plate through ZnO-binding peptide (a) The plate without excited at 254 nm, indicating that the ZnO-binding
ZnO-binding peptide was soaked in a suspension peptide binds specifically to the ZnO surface by recog-
containing fluorescent ZnO particles; (b–d) The plates nizing both the zinc and oxygen atoms. This result
with ZnO-binding peptide were soaked in a suspension implies that ZnO particles can be patterned along ZnO-
containing fluorescent ZnO particles (b), ZnS particles (c), binding peptide lines at room temperature in neutral
or Eu O particles (d). solution, and the bio-patterning can be expected to be a
3
2
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