Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Vassilis Gionis"'
Publikováno v:
Applied Clay Science. 161:354-363
The aim of the present study was to test the applicability of the O-D method, a newly developed spectroscopic layer charge measurement technique, to measure the charge present on wettable surfaces of mixed-layer illite-smectite (I-S). The O-D method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14cbc8fd7cd66638ffb49e1f381c0ce4
https://doi.org/10.1016/j.clay.2018.05.003
https://doi.org/10.1016/j.clay.2018.05.003
Publikováno v:
Applied Clay Science. 160:81-87
The facile and accurate measurement of the layer charge of dioctahedral smectite has been demonstrated recently by means of the O-D method, an infrared-based technique capable of recording the exact position of a dangling O-D (O H) bond stretch of in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::966246e0aca8e9217636113efed19988
https://doi.org/10.1016/j.clay.2018.01.022
https://doi.org/10.1016/j.clay.2018.01.022
Autor:
Marek Szczerba, Eirini Siranidi, Zuzanna Ciesielska, Fevronia T. Andreou, Arkadiusz Derkowski, Vassilis Gionis, Georgios D. Chryssikos, Barbara Barylska
Publikováno v:
Applied Clay Science. 212:106209
The selective self-assembly of small molecules in the interlayer of kaolinite is a fundamentally important and technologically relevant process, typically studied ex situ by X-ray diffraction (XRD). Near-infrared (NIR) spectroscopy is now introduced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec97ddbc0336240a9a81af2bb5acd5cd
https://doi.org/10.1016/j.clay.2021.106209
https://doi.org/10.1016/j.clay.2021.106209
Autor:
George E. Christidis, Georgios D. Chryssikos, Matthias Stöter, Hussein Kalo, Carlos I. Aldana, Jean-Louis Robert, Vassilis Gionis, Josef Breu
Publikováno v:
Minerals
Minerals, MDPI, 2018, 8 (8), pp.314. ⟨10.3390/min8080314⟩
Minerals, 2018, 8 (8), pp.314. ⟨10.3390/min8080314⟩
Minerals, Vol 8, Iss 8, p 314 (2018)
Volume 8
Issue 8
Minerals, MDPI, 2018, 8 (8), pp.314. ⟨10.3390/min8080314⟩
Minerals, 2018, 8 (8), pp.314. ⟨10.3390/min8080314⟩
Minerals, Vol 8, Iss 8, p 314 (2018)
Volume 8
Issue 8
A series of laponites and synthetic OH- and fluorinated hectorites prepared from hydrothermal and melting experiments at both industrial and laboratory scale were examined with XRD and FTIR (MIR and NIR) to determine their mineralogical composition a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c925dcb0868a44fcaeb40e66906b270e
https://hal.sorbonne-universite.fr/hal-01875981/document
https://hal.sorbonne-universite.fr/hal-01875981/document
Autor:
Katja Emmerich, Constantinos Tsiantos, Vassilis Gionis, Arkadiusz Derkowski, Artur Kuligiewicz, Georgios D. Chryssikos, George E. Christidis
Publikováno v:
Clays and Clay Minerals. 63:443-456
Layer charge (LC) is a fundamental property of smectite but its measurement remains challenging and tedious to apply on a high-throughput basis. The present study demonstrates that the position of a sharp, high-energy O—D stretching band of adsorbe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a22a9e6e670e75206e990ebef88af2be
https://doi.org/10.1346/ccmn.2015.0630603
https://doi.org/10.1346/ccmn.2015.0630603
Autor:
Vassilis Gionis, Georgios D. Chryssikos, Marek Szczerba, Arkadiusz Derkowski, Artur Kuligiewicz
Publikováno v:
Clays and Clay Minerals. 63:15-29
An overlap of bands produced by the O−H stretching vibrations of H2O (O–Hw) and structural OH (O−Hs) in smectite hampers the study by infrared spectroscopy (IR) of both their layer and interlayer structure. The present study re-evaluated the D2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55c14df27f36660272ffa6046c414ea2
https://doi.org/10.1346/ccmn.2015.0630102
https://doi.org/10.1346/ccmn.2015.0630102
Autor:
Paraskevi L. Tsiolaki, Stavros J. Hamodrakas, Vassiliki A. Iconomidou, Georgios D. Chryssikos, Vassilis Gionis, Fotis A. Baltoumas, Nikolaos N. Louros
Publikováno v:
Journal of structural biology. 199(2)
Human islet amyloid polypeptide (hIAPP) is the major protein component of extracellular amyloid deposits, located in the islets of Langerhans, a hallmark of type II diabetes. The underlying mechanisms of IAPP aggregation have not yet been clearly def
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84653dd8033533e941e7f39ba1f4e60d
https://pubmed.ncbi.nlm.nih.gov/28602716
https://pubmed.ncbi.nlm.nih.gov/28602716
Autor:
Maria Tsampodimou, Vanessa-Jane Bukas, Georgios D. Chryssikos, Vassilis Gionis, Elizabeth T. Stathopoulou
Publikováno v:
American Mineralogist. 100:195-202
Sepiolite is an industrially important clay mineral of the palygorskite-sepiolite group with alternating 2:1 ribbons and hydrated tunnels. Dry sepiolite, Mg 8 Si 12 O 30 (OH) 4 (OH 2 ) 4 , loses half of its OH 2 content upon further heating and under
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a4e02321b02f02b6c5203253369282f
https://doi.org/10.2138/am-2015-4988
https://doi.org/10.2138/am-2015-4988
Publikováno v:
Vibrational Spectroscopy. 68:51-60
A new environmental cell allowing for the independent synchronous collection of the near- and mid-infrared spectra (12,000–600 cm −1 ) in the diffuse reflection and attenuated total reflection (ATR) modes, respectively, is reported. The cell is e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1919a5e33dd0d60e3fb5aeb924e35a40
https://doi.org/10.1016/j.vibspec.2013.05.009
https://doi.org/10.1016/j.vibspec.2013.05.009
Publikováno v:
Clays and Clay Minerals. 61:83-97
In the present study, the gradual layer-charge reduction of two Li-saturated smectites, SAz-1 from Arizona, USA, and FEO-G from Troodos, Cyprus, with octahedral charge of 0.54 electrons per half unit cell (e/huc) and 0.39 e/huc, respectively, was mon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eca27bd9ecdd9033264a122e7b5fd02f
https://doi.org/10.1346/ccmn.2013.0610207
https://doi.org/10.1346/ccmn.2013.0610207