메뉴 건너뛰기




Volumn 26, Issue 9, 2010, Pages 6449-6456

Immobilization of peptides with distinct biological activities onto stem cell culture substrates using orthogonal chemistries

Author keywords

[No Author keywords available]

Indexed keywords

ABSORBANCES; ALKANETHIOLATES; AZIDE GROUP; BINDING PEPTIDE; BIOINERT; BIOLOGICAL ACTIVITIES; CARBODIIMIDES; CELL ADHESION PEPTIDES; CHEMOSELECTIVE; EXTRACELLULAR; HEXAETHYLENE GLYCOL; HUMAN MESENCHYMAL STEM CELLS; INFRARED REFLECTANCE; MIXED SAM; MOLE FRACTION; POLARIZATION-MODULATED; SAM FORMATION; SAMS; STEM CELL CULTURE; SURFACE CARBOXYLATES; SURFACE DENSITY; THREE COMPONENT; TRIETHYLENE GLYCOL;

EID: 77951689718     PISSN: 07437463     EISSN: 15205827     Source Type: Journal    
DOI: 10.1021/la1008208     Document Type: Article
Times cited : (52)

References (28)
  • 14
    • 47349106582 scopus 로고    scopus 로고
    • Choi, S. and Murphy, W. L. Langmuir 2008, 24 (13) 6873-6880
    • (2008) Langmuir , vol.24 , Issue.13 , pp. 6873-6880
    • Choi, S.1    Murphy, W.L.2
  • 19
    • 77951688887 scopus 로고    scopus 로고
    • The peak corresponding to the stretch of the carboxylate moiety present in PM-IRRAS spectra collected after RGESP conjugation is due to the carboxylate group on the side chain of glutamic acid introduced on the surface as a result of peptide conjugation
    • The peak corresponding to the stretch of the carboxylate moiety present in PM-IRRAS spectra collected after RGESP conjugation is due to the carboxylate group on the side chain of glutamic acid introduced on the surface as a result of peptide conjugation.
  • 20
    • 77951673788 scopus 로고    scopus 로고
    • An additional notable observation is that the amide I peak area after CuAAC was greater than the amide I peak area after carbodiimide condensation at each alkanethiolate mole fraction characterized. This observation suggests that the molar ratio of azide to carboxylate groups in the resulting SAM is greater than the molar ratio of azide to carboxylate groups in ethanol during SAM formation for all conditions studied. This observation is consistent with previous results that demonstrated that the rate of adsorption of HS-EG6-N3 (kN3) onto gold is significantly faster than the rate of adsorption of HS-EG6-EG3 (kEG3) onto gold (ref 7), and suggests that preferential HS-EG6-N3 adsorption onto gold may also occur in the presence of HS-EG6-COOH
    • An additional notable observation is that the amide I peak area after CuAAC was greater than the amide I peak area after carbodiimide condensation at each alkanethiolate mole fraction characterized. This observation suggests that the molar ratio of azide to carboxylate groups in the resulting SAM is greater than the molar ratio of azide to carboxylate groups in ethanol during SAM formation for all conditions studied. This observation is consistent with previous results that demonstrated that the rate of adsorption of HS-EG6-N3 (kN3) onto gold is significantly faster than the rate of adsorption of HS-EG6-EG3 (kEG3) onto gold (ref 7), and suggests that preferential HS-EG6-N3 adsorption onto gold may also occur in the presence of HS-EG6-COOH.
  • 21
    • 77951699315 scopus 로고    scopus 로고
    • 3. Based on the Stokes radius calculated from the estimated peptide volume, and assuming homogeneous alkanethiolate packing, the maximal packing of the peptide should be observed at ∼11.4% COOH. In contrast, our experiments indicate a maximum packing density between 5% and 7.5% COOH. The discrepancy could be explained by variation from theoretical calculations in the peptide Stokes radius or heterogeneous SAM packing
    • 3. Based on the Stokes radius calculated from the estimated peptide volume, and assuming homogeneous alkanethiolate packing, the maximal packing of the peptide should be observed at ∼11.4% COOH. In contrast, our experiments indicate a maximum packing density between 5% and 7.5% COOH. The discrepancy could be explained by variation from theoretical calculations in the peptide Stokes radius or heterogeneous SAM packing.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.