Abstract
In this study, a microwave-assisted method for preparing fluorescent gold nanoclusters capped in bovine serum albumin (AuNCs@BSA) was developed. Through fluorescence spectrometry, transmission electron microscopy, and X-ray photoelectron spectroscopy (XPS), the effect of reaction temperature on the size and oxidation state of AuNCs@BSA samples was determined. Blue-emitting AuNCs@BSA (B-AuNCs@BSA), with weak bonds between AuNCs and BSA, were prepared at 135 °C. Red-emitting AuNCs@BSA (R-AuNCs@BSA) were also formed, and their formation was followed by an aggregation of polydispersed AuNCs@BSA. Through infrared spectrometry and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, it was confirmed that the R-AuNCs@BSA, consisting of 18 Au atoms, was successfully embedded in BSA. In addition, XPS measurements revealed that Au+ ions were present only in the R-AuNCs@BSA. Steady-state and lifetime results revealed the importance of the size and oxidation state of Au+ in the stabilization of the AuNCs@BSA and in the presence of a long lifetime component.
| Original language | English |
|---|---|
| Pages (from-to) | 26997-27003 |
| Number of pages | 7 |
| Journal | Journal of Physical Chemistry C |
| Volume | 121 |
| Issue number | 48 |
| DOIs | |
| Publication status | Published - 2017 Dec 7 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Energy(all)
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films
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Microwave-Assisted Formation of Gold Nanoclusters Capped in Bovine Serum Albumin and Exhibiting Red or Blue Emission. / Chuang, Kuan Ting; Lin, Yang-Wei.
In: Journal of Physical Chemistry C, Vol. 121, No. 48, 07.12.2017, p. 26997-27003.Research output: Contribution to journal › Article
TY - JOUR
T1 - Microwave-Assisted Formation of Gold Nanoclusters Capped in Bovine Serum Albumin and Exhibiting Red or Blue Emission
AU - Chuang, Kuan Ting
AU - Lin, Yang-Wei
PY - 2017/12/7
Y1 - 2017/12/7
N2 - In this study, a microwave-assisted method for preparing fluorescent gold nanoclusters capped in bovine serum albumin (AuNCs@BSA) was developed. Through fluorescence spectrometry, transmission electron microscopy, and X-ray photoelectron spectroscopy (XPS), the effect of reaction temperature on the size and oxidation state of AuNCs@BSA samples was determined. Blue-emitting AuNCs@BSA (B-AuNCs@BSA), with weak bonds between AuNCs and BSA, were prepared at 135 °C. Red-emitting AuNCs@BSA (R-AuNCs@BSA) were also formed, and their formation was followed by an aggregation of polydispersed AuNCs@BSA. Through infrared spectrometry and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, it was confirmed that the R-AuNCs@BSA, consisting of 18 Au atoms, was successfully embedded in BSA. In addition, XPS measurements revealed that Au+ ions were present only in the R-AuNCs@BSA. Steady-state and lifetime results revealed the importance of the size and oxidation state of Au+ in the stabilization of the AuNCs@BSA and in the presence of a long lifetime component.
AB - In this study, a microwave-assisted method for preparing fluorescent gold nanoclusters capped in bovine serum albumin (AuNCs@BSA) was developed. Through fluorescence spectrometry, transmission electron microscopy, and X-ray photoelectron spectroscopy (XPS), the effect of reaction temperature on the size and oxidation state of AuNCs@BSA samples was determined. Blue-emitting AuNCs@BSA (B-AuNCs@BSA), with weak bonds between AuNCs and BSA, were prepared at 135 °C. Red-emitting AuNCs@BSA (R-AuNCs@BSA) were also formed, and their formation was followed by an aggregation of polydispersed AuNCs@BSA. Through infrared spectrometry and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, it was confirmed that the R-AuNCs@BSA, consisting of 18 Au atoms, was successfully embedded in BSA. In addition, XPS measurements revealed that Au+ ions were present only in the R-AuNCs@BSA. Steady-state and lifetime results revealed the importance of the size and oxidation state of Au+ in the stabilization of the AuNCs@BSA and in the presence of a long lifetime component.
UR - http://www.scopus.com/inward/record.url?scp=85038213325&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85038213325&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.7b09349
DO - 10.1021/acs.jpcc.7b09349
M3 - Article
AN - SCOPUS:85038213325
VL - 121
SP - 26997
EP - 27003
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
SN - 1932-7447
IS - 48
ER -