Journal ArticleDOI
Liquid water, by near-ambient pressure XPS
Dhruv Shah,Dhananjay I. Patel,Stephan Bahr,Paul Dietrich,Michael Meyer,Andreas Thißen,Matthew R. Linford +6 more
TLDR
In this article, O 1s, O KLL, and valence band NAP-XPS spectra from liquid water, a material that could not be analyzed at moderate pressures by conventional approaches.Abstract:
Near ambient pressure x-ray photoelectron spectroscopy (NAP-XPS) is a less traditional form of XPS that allows samples to be analyzed at relatively high pressures, i.e., at ca. 2500 Pa, or higher in some cases. With NAP-XPS, XPS can be used to analyze moderately volatile liquids, biological samples, porous materials, and/or polymeric materials that outgas significantly. In this submission, we show survey, O 1s, O KLL, and valence band NAP-XPS spectra from liquid water, a material that could not be analyzed at moderate pressures by conventional approaches. The O 1s signal was fit to two components attributed to liquid and vapor phase water. The carbon in the survey spectrum is attributed to contaminants in the water and/or adventitious carbon.read more
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Probing Lithium-Ion Battery Electrolytes with Laboratory Near-Ambient Pressure XPS
TL;DR: In this paper, LiPF6 in EC/DMC (LP30) and LiTFSI in PC as a model electrolyte were analyzed in their vapor and liquid phases to compare core-level spectra.
Journal ArticleDOI
Introducing Brønsted acid sites to accelerate the bridging-oxygen-assisted deprotonation in acidic water oxidation
Yunzhou Wen,Cheng Liu,Rui Huang,Hui Zhang,Xiaobao Li,F. Pelayo García de Arquer,Zhi Hua Liu,Youyong Li,Bo Zhang +8 more
TL;DR: In this article , a strategy to accelerate the deprotonation of OER intermediates by introducing strong Brønsted acid sites (e.g. tungsten oxides, WO x ) into the RuO 2 .
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Interfacial Water in the SARS Spike Protein: Investigating the Interaction with Human ACE2 Receptor and In Vitro Uptake in A549 Cells
Ajay Singh,Abhijit Kayal,Ashish A. Malik,Romi Singh Maharjan,Paul Dietrich,A. Thissen,Katherina Siewert,Caterina Curato,Kajal Pande,Dwarakanath Prahlad,Naveen M. Kulkarni,Peter Laux,Andreas Luch +12 more
TL;DR: In this article , the role of interfacial water molecules in virus uptake by lung cell A549 by binding and maintaining the RBD/hACE2 complex at varying temperatures using nanourchins coated with spike proteins as pseudoviruses and fluorescence-activated cell sorting (FACS) as a quantitative approach.
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Investigation of dextran adsorption on polycrystalline cerium oxide surfaces
Xiaohui Ju,Břetislav Šmíd,Viktor Johánek,Ivan Khalakhan,Yurii Yakovlev,Iva Matolínová,Vladimír Matolín +6 more
TL;DR: In this paper, the interaction between dextran and polycrystalline cerium oxide surfaces was investigated by atomic force microscopy, X-ray photoelectron spectroscopy, and reflection-absorption infrared spectrum analysis.
Journal ArticleDOI
Impacts of solvation on photo-damage of polypeptides: Modulation and biological implications.
TL;DR: In this paper, the photon/matter interactions between soft X-rays and three selected polypeptides, poly-glycine (poly-Gly), poly-L-arginine (Poly-Arg), and poly-l-lysine(poly-Lys), were systematically investigated.