The journal of physical chemistry. B
Publisher:
American Chemical Society,
Frequency: Weekly, except the first week in Jan.,
Country: United States
Language: English
Author(s):
American Chemical Society.
Start Year:1997 -
ISSN:
1520-6106 (Print)
1520-5207 (Electronic)
1520-5207 (Linking)
1520-5207 (Electronic)
1520-5207 (Linking)
Impact Factor
3.3
2022
| NLM ID: | 101157530 |
| (OCoLC): | 37604309 |
| LCCN: | 98660822 |
| Classification: | W1 JO833Q |
Long-range electron transfer with myoglobin immobilized at Au/mixed-SAM junctions: mechanistic impact of the strong protein confinement. Horse muscle myoglobin (Mb) was tightly immobilized at Au-deposited ~15-Å-thick mixed-type (1:1) alkanethiol SAMs, HS-(CH₂)₁₁-COOH/HS-(CH₂)₁₁-OH, and placed in contact with buffered H₂O or D₂O solutions. Fast-scan cyclic voltammetry (CV) and a Marcus-equation-based analysis were applied to determine unimolecular standard rate constants and reorganization free energies for electron transfer (ET), under variable-temperature (15-55 °C) and -pressure (0.01-150 MPa) conditions. The CV signal was surprisingly stable and reproducible even after multiple temperature and pressure cycl...