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101.
Alise Babre Andis Kalvāns Konrāds Popovs Inga Retiķe Aija Dēliņa Rein Vaikmäe 《Isotopes in environmental and health studies》2016,52(6):706-725
A new data set of δ2H and δ18O in the groundwater from the central part of the Baltic Artesian Basin is presented. The hydrogeological section is subdivided into stagnation, slow exchange and active exchange zones. Na–Ca–Cl brine found at the deepest part – the stagnation zone – is characterized by δ18O values above ?5?‰ and δ2H values approaching ?40?‰ with respect to Vienna Standard Mean Ocean Water. The slow exchange zone where waters of mostly intermediate salinity reside is characterized by δ18O values around ?11.7?‰ and δ2H values around ?85.3?‰. Mean δ18O and δ2H values of the fresh groundwater in the active water exchange zone are ?11.1 and ?79.9?‰, respectively. Characteristically, the groundwater in the active and slow exchange zone is isotopically more depleted compared with the precipitation values observed, and the depletion increases with depth down to the level where strongly enriched brines are encountered. 相似文献
102.
Compact,Polyvalent Mannose Quantum Dots as Sensitive,Ratiometric FRET Probes for Multivalent Protein–Ligand Interactions
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Dr. Yuan Guo Chadamas Sakonsinsiri Dr. Inga Nehlmeier Dr. Martin A. Fascione Dr. Haiyan Zhang Weili Wang Prof. Dr. Stefan Pöhlmann Dr. W. Bruce Turnbull Dr. Dejian Zhou 《Angewandte Chemie (International ed. in English)》2016,55(15):4738-4742
A highly efficient cap‐exchange approach for preparing compact, dense polyvalent mannose‐capped quantum dots (QDs) has been developed. The resulting QDs have been successfully used to probe multivalent interactions of HIV/Ebola receptors DC‐SIGN and DC‐SIGNR (collectively termed as DC‐SIGN/R) using a sensitive, ratiometric Förster resonance energy transfer (FRET) assay. The QD probes specifically bind DC‐SIGN, but not its closely related receptor DC‐SIGNR, which is further confirmed by its specific blocking of DC‐SIGN engagement with the Ebola virus glycoprotein. Tuning the QD surface mannose valency reveals that DC‐SIGN binds more efficiently to densely packed mannosides. A FRET‐based thermodynamic study reveals that the binding is enthalpy‐driven. This work establishes QD FRET as a rapid, sensitive technique for probing structure and thermodynamics of multivalent protein–ligand interactions. 相似文献
103.
Inga Blomer Peter A. Linnell Thomas Schick 《Proceedings of the American Mathematical Society》2008,136(10):3449-3459
In this paper we compute the Galois cohomology of the pro- completion of primitive link groups. Here, a primitive link group is the fundamental group of a tame link in whose linking number diagram is irreducible modulo (e.g. none of the linking numbers is divisible by ).
The result is that (with -coefficients) the Galois cohomology is naturally isomorphic to the -cohomology of the discrete link group.
The main application of this result is that for such groups the Baum-Connes conjecture or the Atiyah conjecture are true for every finite extension (or even every elementary amenable extension), if they are true for the group itself.
104.
Inga Respondek Lena Bressel Peter Saalfrank Holger Kmpf Andreas Grohmann 《Chemical physics》2008,347(1-3):514-522
Two novel spin crossover (SCO) compounds, namely [Fe(INMe)(pyN4)]Br2, and [Fe(IMMe)(pyN4)](OTf)2, where pyN4 = 2,6-Bis(1′,3′-diamino-2′methyl-prop-2′yl)pyridine, INMe = isonicotinic acid methyl ester, IMMe = N-methyl-imidazole, and OTf = triflate, are characterized here both from experimental and theoretical viewpoints. In particular, we apply various density functionals and basis sets to obtain optimized geometries for low- (LS) and high-spin (HS) states, vibrational spectra, LS–HS splittings, and temperature-dependent UV/vis spectra. While geometries and spectra are in good agreement with experimental data, the well-known spin pairing problem makes it difficult to compute accurate LS–HS splitting energies and enthalpies. Based on TD–DFT calculations, the capacity of the compounds for use as reversibly photo-switchable molecules is discussed. 相似文献
105.
Vockenroth IK Atanasova PP Jenkins AT Köper I 《Langmuir : the ACS journal of surfaces and colloids》2008,24(2):496-502
Tethered bilayer lipid membranes are stable solid supported model membrane systems. They can be used to investigate the incorporation and function of membrane proteins. In order to study ion translocation mediated via incorporated proteins, insulating membranes are necessary. The architecture of the membrane can have an important effect on both the electrical properties of the lipid bilayer as well as on the possibility to functionally host proteins. Alpha-hemolysin pores have been functionally incorporated into a tethered bilayer lipid membrane coupled to a gold electrode. The protein incorporation has been monitored optically and electrically and the influence of the molecular structure of the anchor lipids on the insertion properties has been investigated. 相似文献
106.
107.
Yuan Guo Chadamas Sakonsinsiri Inga Nehlmeier Martin A. Fascione Haiyan Zhang Weili Wang Stefan Phlmann W. Bruce Turnbull Dejian Zhou 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2016,128(15):4816-4820
A highly efficient cap‐exchange approach for preparing compact, dense polyvalent mannose‐capped quantum dots (QDs) has been developed. The resulting QDs have been successfully used to probe multivalent interactions of HIV/Ebola receptors DC‐SIGN and DC‐SIGNR (collectively termed as DC‐SIGN/R) using a sensitive, ratiometric Förster resonance energy transfer (FRET) assay. The QD probes specifically bind DC‐SIGN, but not its closely related receptor DC‐SIGNR, which is further confirmed by its specific blocking of DC‐SIGN engagement with the Ebola virus glycoprotein. Tuning the QD surface mannose valency reveals that DC‐SIGN binds more efficiently to densely packed mannosides. A FRET‐based thermodynamic study reveals that the binding is enthalpy‐driven. This work establishes QD FRET as a rapid, sensitive technique for probing structure and thermodynamics of multivalent protein–ligand interactions. 相似文献
108.
Tien Doan Phan Thao My Trinh Thi Thu Khiem Le Hong Frontasyeva Marina Zinicovscaia Inga Son Nguyen An Van Dung Do 《Journal of Radioanalytical and Nuclear Chemistry》2022,331(6):2743-2750
Journal of Radioanalytical and Nuclear Chemistry - Forty-five moss samples were collected at the end of the 2019 rainy season in Hanoi capital and some other cities in Red River Delta and the south... 相似文献
109.
Franziska C. Vogl Sebastian Mehrl Leonhard Heizinger Inga Schlecht Helena U. Zacharias Lisa Ellmann Nadine Nürnberger Wolfram Gronwald Michael F. Leitzmann Jerome Rossert Kai-Uwe Eckardt Katja Dettmer Peter J. Oefner GCKD Study Investigators 《Analytical and bioanalytical chemistry》2016,408(29):8483-8493
110.