Zobrazeno 1 - 10
of 239
pro vyhledávání: '"Hermann Rothard"'
Autor:
Leo Sala, Agnes Zerolová, Violaine Vizcaino, Alain Mery, Alicja Domaracka, Hermann Rothard, Philippe Boduch, Dominik Pinkas, Jaroslav Kocišek
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 15, Iss 1, Pp 207-214 (2024)
DNA origami nanostructures are emerging as a bottom-up nanopatterning approach. Direct combination of this approach with top-down nanotechnology, such as ion beams, has not been considered because of the soft nature of the DNA material. Here we demon
Externí odkaz:
https://doaj.org/article/3d706238d12246759f99063c9ae1f053
Autor:
Alexis Bouquet, Cíntia Aparecida Pires da Costa, Philippe Boduch, Hermann Rothard, Alicja Domaracka, Grégoire Danger, Isabelle Schmitz, Carlos Afonso, Philippe Schmitt-Kopplin, Vincent Hue, Tom A. Nordheim, Alexander Ruf, Fabrice Duvernay, Maryse Napoleoni, Nozair Khawaja, Frank Postberg, Thomas Javelle, Olivier Mousis, Laura Isabel Tenelanda Osorio
Publikováno v:
The Planetary Science Journal, Vol 5, Iss 4, p 102 (2024)
We performed experiments of implantation of energetic sulfur ions (105 keV) into 2:1 water:propane ices at 80 K and analyzed the resulting refractory organic matter with ultrahigh-resolution mass spectrometry. Our goal was to characterize the organic
Externí odkaz:
https://doaj.org/article/2e23f428aed54fd89325131e941d8bc1
Autor:
Cíntia A. P. da Costa, Gabriel S. Vignoli Muniz, Philippe Boduch, Hermann Rothard, Enio F. da Silveira
Publikováno v:
International Journal of Molecular Sciences, Vol 21, Iss 5, p 1893 (2020)
Radiolysis of biomolecules by fast ions has interest in medical applications and astrobiology. The radiolysis of solid D-valine (0.2−2 μm thick) was performed at room temperature by 1.5 MeV H+, He+, N+, and 230 MeV S15+ ion beams. The samples were
Externí odkaz:
https://doaj.org/article/d1e75845037a498a85cf4ab6c8cb35c8
Publikováno v:
Revista UniVap, Vol 19, Iss 34, Pp 58-63 (2013)
Neste trabalho, estudamos a estabilidade da molécula de glicina na sua forma zwiteriônica cristalina, conhecida como a-glycina (+NH3CH2COO-) a duas temperaturas (14 e 300 K), sob a ação de íons rápidos, simulando ambientes espaciais na presenç
Externí odkaz:
https://doaj.org/article/52d6fe61427841708748f8d7ee211c26
Autor:
Philippe Boduch, Enio Frota da Silveira, Alicja Domaracka, Oscar Gomis, Xue Yang Lv, Maria Elisabetta Palumbo, Sergio Pilling, Hermann Rothard, Eduardo Seperuelo Duarte, Giovanni Strazzulla
Publikováno v:
Advances in Astronomy, Vol 2011 (2011)
Our groups in Brazil, France and Italy have been active, among others in the world, in performing experiments on physical-chemical effects induced by fast ions colliding with solids (frozen gases, carbonaceous and organic materials, silicates, etc.)
Externí odkaz:
https://doaj.org/article/040f7ad9af204f6e99d61ead44444ef9
Autor:
Alexandre Bergantini, Ana Lucia Ferreira de Barros, Naomi Nitahara Toribio, Hermann Rothard, Philippe Boduch, Enio Frota da Silveira
Publikováno v:
Journal of Physical Chemistry A
Journal of Physical Chemistry A, 2022, 126 (12), pp.2007-2017. ⟨10.1021/acs.jpca.2c00768⟩
Journal of Physical Chemistry A, 2022, 126 (12), pp.2007-2017. ⟨10.1021/acs.jpca.2c00768⟩
International audience; As of early 2022, only six species bearing an N−Obond have been detected toward cold molecular clouds and regionsof star formation. It is not clear yet if the small number of N−Obond species found in the interstellar mediu
Autor:
Alexis Bouquet, Grégoire Danger, Laura Tenelanda-osorio, Philippe Boduch, Hermann Rothard, Julien Maillard, Isabelle Schmitz-Afonso, Carlos Afonso, Philippe Schmitt-Kopplin, Fabrice Duvernay, Cintia Pires da Costa, Lawry Honold
Publikováno v:
16th Europlanet Science Congress 2022
16th Europlanet Science Congress 2022, 0000, à renseigner, Unknown Region. ⟨10.5194/epsc2022-812⟩
16th Europlanet Science Congress 2022, 0000, à renseigner, Unknown Region. ⟨10.5194/epsc2022-812⟩
We present the results of the implantation of sulfur ions in ice samples (H2O:C3H8) in conditions relevant to Europa and other jovian satellites. The samples were prepared and irradiated at 80 K, and were thick enough to ensure the projectiles were i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c774ec57c8dbf2582d4a9fea850ce3d
https://hal.science/hal-03948203
https://hal.science/hal-03948203
Autor:
Gabriel S. Vignoli Muniz, Aditya N. Agnihotri, Basile Augé, Christian Mejía, Rafael Martinez, Hermann Rothard, Alicja Domaracka, Philippe Boduch
Publikováno v:
ACS Earth and Space Chemistry
ACS Earth and Space Chemistry, 2022, 6 (9), pp.2149-2157. ⟨10.1021/acsearthspacechem.2c00036⟩
ACS Earth and Space Chemistry, 2022, 6 (9), pp.2149-2157. ⟨10.1021/acsearthspacechem.2c00036⟩
International audience; We investigated the radiolysis effects on the cytosine in the solid phase irradiated by swift heavy ions as galactic cosmic ray analogues (GCRs). Infrared (IR) absorption spectroscopy was employed to monitor the physical and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49945c7e1dfe1ddcb24c077ccdc88d28
https://hal.science/hal-03824306/file/Muniz_ESC_2022_HAL.pdf
https://hal.science/hal-03824306/file/Muniz_ESC_2022_HAL.pdf
Autor:
Eric Quirico, Aurore Bacmann, Cédric Wolters, Basile Augé, Laurène Flandinet, Thibault Launois, John F. Cooper, Véronique Vuitton, Thomas Gautier, Lora Jovanovic, Philippe Boduch, Hermann Rothard, Léopold Desage, Alexandre Faure, Bernard Schmitt, Olivier Poch, William M. Grundy, Silvia Protopapa, Sonia Fornasier, Dale P. Cruikshank, S. Alan Stern
Publikováno v:
Icarus
Icarus, 2023, 394 (April), pp.115396. ⟨10.1016/j.icarus.2022.115396⟩
Icarus, 2023, 394 (April), pp.115396. ⟨10.1016/j.icarus.2022.115396⟩
International audience; The classical Kuiper Belt Object (KBO) Arrokoth was surveyed by the New Horizons spacecraft on 1st January 2019, revealing a small bilobed object with a red surface, whose spectral slope lies in the average of the whole KBOs p
Autor:
J. Duprat, Emmanuel Dartois, J. Rojas, T. Id Barkach, B. Augé, Hermann Rothard, Ph. Boduch, Marin Chabot
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2020, 485, pp.13-19. ⟨10.1016/j.nimb.2020.10.008⟩
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2020, 485, pp.13-19. ⟨10.1016/j.nimb.2020.10.008⟩
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2020, 485, pp.13-19. ⟨10.1016/j.nimb.2020.10.008⟩
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2020, 485, pp.13-19. ⟨10.1016/j.nimb.2020.10.008⟩
Most sputtering yield measurements for solid N 2 are reported for stopping powers lower than 10 − 13 eV cm 2 /molecule. We measured the sputtering yield for solid N 2 at stopping powers, in the electronic regime, above 10 − 12 eV cm 2 /molecule,