메뉴 건너뛰기




Volumn 22, Issue 25, 2006, Pages 10584-10589

Effect of peptide ligand dipole moments on the redox potentials of Au 38 and Au140 nanoparticles

Author keywords

[No Author keywords available]

Indexed keywords

DIFFERENTIAL PULSE VOLTAMMETRY; DIPOLE MOMENTS; LIGAND PLACE EXCHANGE; PEPTIDE CONCENTRATION;

EID: 33846030163     PISSN: 07437463     EISSN: None     Source Type: Journal    
DOI: 10.1021/la061553b     Document Type: Article
Times cited : (62)

References (50)
  • 1
    • 8844250887 scopus 로고    scopus 로고
    • Wiley-VCH: Weinheim, Germany
    • (a) Schmid, G. Nanoparticles; Wiley-VCH: Weinheim, Germany, 2004.
    • (2004) Nanoparticles
    • Schmid, G.1
  • 11
    • 0037015744 scopus 로고    scopus 로고
    • 5e-g (a) Woehrle, G. H.; Warner, M. G.; Hutchison, J. E. J. Phys. Chem. B 2002, 106, 9979-9981.
    • 5e-g (a) Woehrle, G. H.; Warner, M. G.; Hutchison, J. E. J. Phys. Chem. B 2002, 106, 9979-9981.
  • 32
    • 33846008373 scopus 로고    scopus 로고
    • In the 310-helix, each intramolecular C=O⋯H-N hydrogen bond involves residues i and i, 3 and a single helical turn requires 3.24 amino acid residues. 11b Consequently, the tendency of Aib homooligomers to form β-turns and 310-helices starts from the tripeptide. 9
    • 9
  • 40
    • 33845974866 scopus 로고    scopus 로고
    • When the exchange was carried out in the presence of a 5 molar equiv of peptide, the reaction required a similar amount of time to reach equilibrium, but the final absorption intensity was lower, which indicated that the final MPC had a higher loading of peptide.
    • When the exchange was carried out in the presence of a 5 molar equiv of peptide, the reaction required a similar amount of time to reach equilibrium, but the final absorption intensity was lower, which indicated that the final MPC had a higher loading of peptide.
  • 41
    • 33845983985 scopus 로고    scopus 로고
    • 15 are suspected to play an additional effect on the observed difference.
    • 15 are suspected to play an additional effect on the observed difference.
  • 42
    • 33845979819 scopus 로고    scopus 로고
    • Under identical experimental TGA conditions, while desorption of phenylethanethiol typically occurs at 210-220°C, that of peptides 1-3 is observed at temperatures higher by 60-100°C.
    • Under identical experimental TGA conditions, while desorption of phenylethanethiol typically occurs at 210-220°C, that of peptides 1-3 is observed at temperatures higher by 60-100°C.
  • 43
    • 33846007672 scopus 로고    scopus 로고
    • 7e
    • 7e
  • 44
    • 33846029114 scopus 로고    scopus 로고
    • 38 clusters can be prepared by using thiolated Aib peptides. Further results on this matter, which confirmed this synthetic outcome, will be reported elsewhere.
    • 38 clusters can be prepared by using thiolated Aib peptides. Further results on this matter, which confirmed this synthetic outcome, will be reported elsewhere.
  • 45
    • 33845972614 scopus 로고    scopus 로고
    • Typical values are on the order of 170-190: Riddick, J. A.; Bunger, W. B.; Sakano, T. K. Organic Solvents, Physical properties and methods of purification, 4th ed.; Techniques of chemistry, II, Weissberger, A., Ed.; John Wiley and Sons: New York, 1986.
    • Typical values are on the order of 170-190: Riddick, J. A.; Bunger, W. B.; Sakano, T. K. Organic Solvents, Physical properties and methods of purification, 4th ed.; Techniques of chemistry, Vol. II, Weissberger, A., Ed.; John Wiley and Sons: New York, 1986.
  • 46
    • 33846011392 scopus 로고    scopus 로고
    • For more heavily exchanged clusters, the optical-absorption data would point to an increase of the energy gap, but this is an aspect, which might be associated with the presence of oriented dipole moments in the monolayer, that would require specific studies
    • For more heavily exchanged clusters, the optical-absorption data would point to an increase of the energy gap, but this is an aspect, which might be associated with the presence of oriented dipole moments in the monolayer, that would require specific studies.
  • 47
    • 33846004771 scopus 로고    scopus 로고
    • Preliminary results obtained on the experimental determination of the dipole moments of series of Aib homooligomers (Ceccato, M.; Di Noto, V.; Zangoni, E.; Maran, F. Work in progress) indicated that the peptide dipole moment linearly increases with the number of Aib units. This outcome also implies that these peptides are indeed stiff even when short. For peptides with one, two, and three intramolecular hydrogen bonds. 8.22, 10.79, and 12.34 D were determined, respectively.
    • Preliminary results obtained on the experimental determination of the dipole moments of series of Aib homooligomers (Ceccato, M.; Di Noto, V.; Zangoni, E.; Maran, F. Work in progress) indicated that the peptide dipole moment linearly increases with the number of Aib units. This outcome also implies that these peptides are indeed stiff even when short. For peptides with one, two, and three intramolecular hydrogen bonds. 8.22, 10.79, and 12.34 D were determined, respectively.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.