Results 31 to 40 of about 95,067 (301)

THz Time-domain spectroscopy of complex interstellar ice analogs [PDF]

, 2014
It is generally accepted that complex organic molecules (COMs) form on the icy surface of interstellar grains. Our ability to identify interstellar complex species in the ices is affected by the limited number of laboratory analogs that can be compared ...
Ioppolo, Sergio
core   +1 more source

Brief Communication: Ikaite (CaCO₃·6H₂O) discovered in Arctic sea ice [PDF]

The Cryosphere, 2010
We report for the first time on the discovery of calcium carbonate crystals as ikaite (CaCO3·6H2O) in sea ice from the Arctic (Kongsfjorden, Svalbard) as confirmed by morphology and indirectly by X-ray diffraction as well as XANES spectroscopy of ...
M. A. Granskog, S. Gerland, C. Uhlig, J. Göttlicher, G. Nehrke, G. S. Dieckmann, D. N. Thomas   +6 more
doaj   +1 more source

Changing Hydrogen-Bond Structure during an Aqueous Liquid-Liquid Transition Investigated with Time-Resolved and Two-Dimensional Vibrational Spectroscopy [PDF]

, 2016
We investigate the putative liquid–liquid phase transition in aqueous glycerol solution, using the OD-stretch mode in dilute OD/OH isotopic mixtures to probe the hydrogen-bond structure. The conversion exhibits Avrami kinetics with an exponent of n = 2.9
Jeroen R. Bruijn, Sander Woutersen, Tibert H. van der Loop, van der Loop, T.H., Bruijn, J.R., Woutersen, S.   +5 more
core   +1 more source

Locations of micro-inclusions identified with Raman spectroscopy in eleven samples (138-1340 m) from the EastGRIP ice core

, 2021
Micro-inclusions in eleven samples from the upper 1340 m of the East Greenland Ice Core Project ice core in North-East Greenland were analysed with Raman spectroscopy.
Stoll, Nicolas, Eichler, Jan, Weikusat, Ilka   +2 more
core   +1 more source

Infrared Spectroscopy on Equilibrated High-Density Amorphous Ice

The Journal of Physical Chemistry Letters, 2022
High-density (HDA) and low-density amorphous ices (LDA) are believed to be counterparts of the high- and low-density liquid phases of water, respectively. In order to better understand how the vibrational modes change during the transition between the two solid states, we present infrared spectroscopy measurements, following the change of the decoupled
Aigerim Karina, Tobias Eklund, Christina M. Tonauer, Hailong Li, Thomas Loerting, Katrin Amann-Winkel   +5 more
openaire   +3 more sources

Depositional ice nucleation on solid ammonium sulfate and glutaric acid particles [PDF]

Atmospheric Chemistry and Physics, 2010
Heterogeneous ice nucleation on solid ammonium sulfate and glutaric acid particles was studied using optical microscopy and Raman spectroscopy. Optical microscopy was used to detect selective nucleation events as water vapor was slowly introduced into an
K. J. Baustian, M. E. Wise, M. A. Tolbert   +2 more
doaj  

Ice Nucleation Properties of Ice-binding Proteins from Snow Fleas

Biomolecules, 2019
Ice-binding proteins (IBPs) are found in many organisms, such as fish and hexapods, plants, and bacteria that need to cope with low temperatures. Ice nucleation and thermal hysteresis are two attributes of IBPs.
Akalabya Bissoyi, Naama Reicher, Michael Chasnitsky, Sivan Arad, Thomas Koop, Yinon Rudich, Ido Braslavsky   +6 more
doaj   +1 more source

Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect

, 2006
Zobrist B, Marcolli C, Koop T, et al. Oxalic acid as a heterogeneous ice nucleus in the upper troposphere and its indirect aerosol effect. ATMOSPHERIC CHEMISTRY AND PHYSICS.
Koop, Thomas, Cziczo, Daniel J., Corti, Thierry, Murphy, D. M., Fueglistaler, Stephan, B. Zobrist, P. K. Hudson, Koop, T., Hudson, P.K., Koop, Thomas ; https://orcid.org/, Krieger, U. K., Corti, T., Lohmann, Ulrike, Thomson, D. S., U. K. Krieger, Marcolli, C., D. S. Thomson, D. J. Cziczo, T. Corti, T. Peter, U. Lohmann, Lohmann, U., Peter, Thomas, T. Koop, Luo, Beiping P., Murphy, Daniel M., A. A. Zardini, Krieger, Ulrich; id_orcid, Luo, B. P., Hudson, P. K., Thomson, D.S., B. P. Luo, Zardini, A., Cziczo, D. J., Zardini, A. A., Zardini, Alessandro A., D. M. Murphy, C. Marcolli, S. Fueglistaler, Peter, T., Marcolli, Claudia, Zobrist, Bernhard, Zobrist, B., Fueglistaler, S.   +43 more
core   +1 more source

Two-dimensional infrared spectroscopy of neat ice Ih [PDF]

Physical Chemistry Chemical Physics, 2012
The OH stretch line shape of ice Ih exhibits distinct peaks, the assignment of which remains controversial. We address this longstanding question using two dimensional infrared (2D IR) spectroscopy of the OH stretch of H2O and the OD stretch of D2O of ice Ih at T=80 K.
Perakis, Fivos, Hamm, Peter
openaire   +4 more sources

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source