Unusual Water Hydrogen Bond Network around Hydrogenated
Nanodiamonds
Version 2 2017-03-25, 13:23
Version 1 2017-02-24, 21:23
Posted on 2017-03-25 - 13:23
Nanodiamonds exhibit exceptional
colloidal properties in aqueous
media that lead to a wide range of applications in nanomedicine and
other fields. Nevertheless, the role of surface chemistry on the hydration
of nanodiamonds remains poorly understood. Here, we probed the water
hydrogen bond network in aqueous dispersions of nanodiamonds by infrared,
Raman, and X-ray absorption spectroscopies applied in situ in aqueous
environment. Aqueous dispersions of nanodiamonds with hydrogenated,
carboxylated, hydroxylated, and polyfunctional surface terminations
were compared. A different hydrogen bond network was found in hydrogenated
nanodiamonds dispersions compared to dispersions of nanodiamonds with
other surface terminations. Although no hydrogen bonds are formed
between water and hydrogenated surface groups, a long-range disruption
of the water hydrogen bond network is evidenced in hydrogenated nanodiamonds
dispersion. We propose that this unusual hydration structure results
from electron accumulation at the diamond–water interface.
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Petit, Tristan; Puskar, Ljiljana; Dolenko, Tatiana; Choudhury, Sneha; Ritter, Eglof; Burikov, Sergey; et al. (2017). Unusual Water Hydrogen Bond Network around Hydrogenated
Nanodiamonds. ACS Publications. Collection. https://doi.org/10.1021/acs.jpcc.7b00721
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AUTHORS (20)
TP
Tristan Petit
LP
Ljiljana Puskar
TD
Tatiana Dolenko
SC
Sneha Choudhury
ER
Eglof Ritter
SB
Sergey Burikov
KL
Kirill Laptinskiy
QB
Quentin Brzustowski
US
Ulrich Schade
HY
Hayato Yuzawa
MN
Masanari Nagasaka
NK
Nobuhiro Kosugi
MK
Magdalena Kurzyp
AV
Amélie Venerosy
HG
Hugues Girard
JA
Jean-Charles Arnault
EO
Eiji Osawa
NN
Nicholas Nunn
OS
Olga Shenderova
EA
Emad F. Aziz
KEYWORDS
hydration structure resultshydrogenated nanodiamonds dispersionelectron accumulationhydrogenated nanodiamonds dispersionsX-ray absorption spectroscopieshydrogen bondssurface terminationsHydrogenated Nanodiamonds Nanodiamonds exhibitsurface chemistryUnusual Water Hydrogen Bond Networkhydrogen bond networkAqueous dispersionspolyfunctional surface terminationswater hydrogen bond networkhydrogenated surface groups