Supporting information for:
Surface-Enhanced Hyper-Raman Spectra of
Adenine, Guanine, Cytosine, Thymine, and
Uracil
Fani Madzharova,† Zsuzsanna Heiner,‡,† Marina Gühlke,† and Janina Kneipp∗,†,‡
†Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489
Berlin, Germany.
‡School of Analytical Sciences Adlershof SALSA, Humboldt-Universität zu Berlin,
Albert-Einstein-Str. 5-11, 12489 Berlin, Germany.
E-mail: [email protected]
Phone: +49 30 20 93 71 71
S1
1 5 3 2
S E H R S s p e c tr a o f u r a c il
6 4 5
A g H A , p H 1 0
A g C it, p H 1 0
A g C it, p H 7 .5
6 0 0
8 0 0
1 0 0 0
1 2 0 0
R a m a n s h ift /c m
1 4 0 0
1 6 0 0
-1
Figure S1: Comparison of the surface-enhanced hyper-Raman spectra of uracil obtained
with citrate (black and blue line) and hydroxylamine (red line) reduced silver nanoparticles
at pH 7.5 (blue line) and at pH 10 (red and black line). Excitation: 1064 nm, photon flux
density: 1.7x1028 photons cm−2 s−1 , and uracil concentration: 5x10−5 M. The uppermost
trace is identical to the spectrum shown in Figure 4C and the bottommost trace is identical
to the spectrum shown in Figure 4A.
S2
S E H R S s p e c tr a o f th y m in e
6 5 0
1 5 2 1
A g H A , p H 1 0
A g C it, p H 1 0
A g C it, p H 7 .5
6 0 0
8 0 0
1 0 0 0
1 2 0 0
R a m a n s h ift /c m
1 4 0 0
1 6 0 0
-1
Figure S2: Comparison of the surface-enhanced hyper-Raman spectra of thymine obtained
with citrate (black and blue line) and hydroxylamine (red line) reduced silver nanoparticles
at pH 7.5 (blue line) and at pH 10 (red and black line). Excitation: 1064 nm, photon flux
density: 1.7x1028 photons cm−2 s−1 , and thymine concentration: 5x10−5 M. The uppermost
trace is identical to the spectrum shown in Figure 5C and the bottommost trace is identical
to the spectrum shown in Figure 5A.
S3