Full Text Journal Articles by
Author Sergey Semenov

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Symposium report: emerging threats for human health - impact of socioeconomic and climate change on zooanthroponosis in the Republic of Sakha (Yakutia), Russia.

Irene Huber, Katerina Potapova, Elena Ammosova, Wolfgang Beyer, Sergey Blagodatskiy, Roman Desyatkin, Ludwig E Hoelzle, Margarita Ignateva, Ludmila Kokolova, Stefanie Lemke, Mikhail Neustroev, Ayan Nyukkanov, Galina Protodyakonova, Alexander Reshetnikov, Thomas Romig, Vyacheslav Shadrin, Izabella Samoilova, Sergey Semenov, Konstantin Stepanov, Nadezhda Tarabukina, Liliia Vinokurova, Raisa Zakharova, Konstantin Nifontov,

Population growth, socio-cultural and economic changes as well as technological progress have an immediate impact on the environment and human health in particular. Our steadily rising needs of resources increase the pressure on the environment and narrow down untainted habitats for plants and wild animals. Balance and resilience of ecosystems ... Read more >>

Int J Circumpolar Health (International journal of circumpolar health)
[2020, 79(1):1715698]

Cited: 0 times

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Deoxofluorination of (Hetero)aromatic Acids.

Serhii Trofymchuk, Maksym Ya Bugera, Anton A Klipkov, Bohdan Razhyk, Sergey Semenov, Karen Tarasenko, Viktoriia S Starova, Olga A Zaporozhets, Oksana Yu Tananaiko, Anatoliy N Alekseenko, Yurii Pustovit, Oleksandr Kiriakov, Igor I Gerus, Andrei A Tolmachev, Pavel K Mykhailiuk,

Diverse trifluoromethyl-substituted compounds were synthesized by deoxofluorination of cinnamic and (hetero)aromatic carboxylic acids with sulfur tetrafluoride. The obtained products were used as starting materials in the preparation of novel fluorinated amino acids, anilines, and aliphatic amines - valuable building blocks for medicinal chemistry and agrochemistry. ... Read more >>

J. Org. Chem. (The Journal of organic chemistry)
[2020, 85(5):3110-3124]

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Mathematical Analysis of a Prototypical Autocatalytic Reaction Network.

Ekaterina V Skorb, Sergey N Semenov,

Network autocatalysis, which is autocatalysis whereby a catalyst is not directly produced in a catalytic cycle, is likely to be more common in chemistry than direct autocatalysis is. Nevertheless, the kinetics of autocatalytic networks often does not exactly follow simple quadratic or cubic rate laws and largely depends on the ... Read more >>

Life (Basel) (Life (Basel, Switzerland))
[2019, 9(2):]

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Robustness, Entrainment, and Hybridization in Dissipative Molecular Networks, and the Origin of Life.

Brian J Cafferty, Albert S Y Wong, Sergey N Semenov, Lee Belding, Samira Gmür, Wilhelm T S Huck, George M Whitesides,

How simple chemical reactions self-assembled into complex, robust networks at the origin of life is unknown. This general problem-self-assembly of dissipative molecular networks-is also important in understanding the growth of complexity from simplicity in molecular and biomolecular systems. Here, we describe how heterogeneity in the composition of a small network ... Read more >>

J. Am. Chem. Soc. (Journal of the American Chemical Society)
[2019, 141(20):8289-8295]

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Autocatalytic Cycles in a Copper-Catalyzed Azide-Alkyne Cycloaddition Reaction.

Sergey N Semenov, Lee Belding, Brian J Cafferty, Maral P S Mousavi, Anastasiia M Finogenova, Ricardo S Cruz, Ekaterina V Skorb, George M Whitesides,

This work describes the autocatalytic copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction between tripropargylamine and 2-azidoethanol in the presence of Cu(II) salts. The product of this reaction, tris-(hydroxyethyltriazolylmethyl)amine (N(C3N3)3), accelerates the cycloaddition reaction (and thus its own production) by two mechanisms: (i) by coordinating Cu(II) and promoting its reduction to Cu(I) and ... Read more >>

J. Am. Chem. Soc. (Journal of the American Chemical Society)
[2018, 140(32):10221-10232]

Cited: 3 times

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Boundary conditions for a one-sided numerical model of evaporative instabilities in sessile drops of ethanol on heated substrates.

Sergey Semenov, Florian Carle, Marc Medale, David Brutin,

The work is focused on obtaining boundary conditions for a one-sided numerical model of thermoconvective instabilities in evaporating pinned sessile droplets of ethanol on heated substrates. In the one-sided model, appropriate boundary conditions for heat and mass transfer equations are required at the droplet surface. Such boundary conditions are obtained ... Read more >>

Phys Rev E (Physical review. E)
[2017, 96(6-1):063113]

Cited: 0 times

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Magnetic Levitation To Characterize the Kinetics of Free-Radical Polymerization.

Shencheng Ge, Sergey N Semenov, Amit A Nagarkar, Jonathan Milette, Dionysios C Christodouleas, Li Yuan, George M Whitesides,

This work describes the development of magnetic levitation (MagLev) to characterize the kinetics of free-radical polymerization of water-insoluble, low-molecular-weight monomers that show a large change in density upon polymerization. Maglev measures density, and certain classes of monomers show a large change in density when monomers covalently join in polymer chains. ... Read more >>

J. Am. Chem. Soc. (Journal of the American Chemical Society)
[2017, 139(51):18688-18697]

Cited: 1 time

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Autocatalytic, bistable, oscillatory networks of biologically relevant organic reactions.

Sergey N Semenov, Lewis J Kraft, Alar Ainla, Mengxia Zhao, Mostafa Baghbanzadeh, Victoria E Campbell, Kyungtae Kang, Jerome M Fox, George M Whitesides,

Networks of organic chemical reactions are important in life and probably played a central part in its origin. Network dynamics regulate cell division, circadian rhythms, nerve impulses and chemotaxis, and guide the development of organisms. Although out-of-equilibrium networks of chemical reactions have the potential to display emergent network dynamics such ... Read more >>

Nature (Nature)
[2016, 537(7622):656-660]

Cited: 46 times

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Field-induced conductance switching by charge-state alternation in organometallic single-molecule junctions.

Florian Schwarz, Georg Kastlunger, Franziska Lissel, Carolina Egler-Lucas, Sergey N Semenov, Koushik Venkatesan, Heinz Berke, Robert Stadler, Emanuel Lörtscher,

Charge transport through single molecules can be influenced by the charge and spin states of redox-active metal centres placed in the transport pathway. These intrinsic properties are usually manipulated by varying the molecule's electrochemical and magnetic environment, a procedure that requires complex setups with multiple terminals. Here we show that ... Read more >>

Nat Nanotechnol (Nature nanotechnology)
[2016, 11(2):170-176]

Cited: 28 times

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Effect of Sterical Shielding on the Redox Properties of Imidazoline and Imidazolidine Nitroxides.

Igor A Kirilyuk, Andrey A Bobko, Sergey V Semenov, Denis A Komarov, Irina G Irtegova, Igor A Grigor'ev, Elena Bagryanskaya,

The oxidant properties of the series of 2,2,5,5-tetraalkyl imidazoline and imidazolidine nitroxides were investigated. An increase in the number of bulky alkyl substituents leads to a decrease in the rate of reduction with ascorbate, which makes the electrochemical reduction potential more negative and shifts the equilibrium in the mixture of ... Read more >>

J. Org. Chem. (The Journal of organic chemistry)
[2015, 80(18):9118-9125]

Cited: 10 times

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Influence of molecular structure on the properties of out-of-equilibrium oscillating enzymatic reaction networks.

Albert S Y Wong, Sjoerd G J Postma, Ilia N Vialshin, Sergey N Semenov, Wilhelm T S Huck,

Our knowledge of the properties and dynamics of complex molecular reaction networks, for example those found in living systems, considerably lags behind the understanding of elementary chemical reactions. In part, this is because chemical reactions networks are nonlinear systems that operate under conditions far from equilibrium. Of particular interest is ... Read more >>

J. Am. Chem. Soc. (Journal of the American Chemical Society)
[2015, 137(38):12415-12420]

Cited: 8 times

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Rational design of functional and tunable oscillating enzymatic networks.

Sergey N Semenov, Albert S Y Wong, R Martijn van der Made, Sjoerd G J Postma, Joost Groen, Hendrik W H van Roekel, Tom F A de Greef, Wilhelm T S Huck,

Life is sustained by complex systems operating far from equilibrium and consisting of a multitude of enzymatic reaction networks. The operating principles of biology's regulatory networks are known, but the in vitro assembly of out-of-equilibrium enzymatic reaction networks has proved challenging, limiting the development of synthetic systems showing autonomous behaviour. ... Read more >>

Nat Chem (Nature chemistry)
[2015, 7(2):160-165]

Cited: 51 times

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Threshold sensing through a synthetic enzymatic reaction-diffusion network.

Sergey N Semenov, Albert J Markvoort, Tom F A de Greef, Wilhelm T S Huck,

A wet stamping method to precisely control concentrations of enzymes and inhibitors in place and time inside layered gels is reported. By combining enzymatic reactions such as autocatalysis and inhibition with spatial delivery of components through soft lithographic techniques, a biochemical reaction network capable of recognizing the spatial distribution of ... Read more >>

Angew. Chem. Int. Ed. Engl. (Angewandte Chemie (International ed. in English))
[2014, 53(31):8066-8069]

Cited: 9 times

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Fluorescent hydrogels for studying Ca(2+)-dependent reaction-diffusion processes.

Sergey N Semenov, Sjoerd G J Postma, Ilia N Vialshin, Wilhelm T S Huck,

Here, we report a convenient experimental platform to study the diffusion of Ca(2+) in the presence of a Ca(2+)-binding protein (Calbindin D28k). This work opens up new possibilities to elucidate the physical chemistry of complex Ca(2+)-dependent reaction-diffusion networks that are abundant in living cells. ... Read more >>

Chem. Commun. (Camb.) (Chemical communications (Cambridge, England))
[2014, 50(23):3089-3092]

Cited: 0 times

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Probing cellular heterogeneity in cytokine-secreting immune cells using droplet-based microfluidics.

Venkatachalam Chokkalingam, Jurjen Tel, Florian Wimmers, Xin Liu, Sergey Semenov, Julian Thiele, Carl G Figdor, Wilhelm T S Huck,

Here, we present a platform to detect cytokine (IL-2, IFN-γ, TNF-α) secretion of single, activated T-cells in droplets over time. We use a novel droplet-based microfluidic approach to encapsulate cells in monodisperse agarose droplets together with functionalized cytokine-capture beads for subsequent binding and detection of secreted cytokines from single cells. ... Read more >>

Lab Chip (Lab on a chip)
[2013, 13(24):4740-4744]

Cited: 51 times

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Ultrasensitivity by molecular titration in spatially propagating enzymatic reactions.

Sergey N Semenov, Albert J Markvoort, Wouter B L Gevers, Aigars Piruska, Tom F A de Greef, Wilhelm T S Huck,

Delineating design principles of biological systems by reconstitution of purified components offers a platform to gauge the influence of critical physicochemical parameters on minimal biological systems of reduced complexity. Here we unravel the effect of strong reversible inhibitors on the spatiotemporal propagation of enzymatic reactions in a confined environment in vitro. ... Read more >>

Biophys. J. (Biophysical journal)
[2013, 105(4):1057-1066]

Cited: 10 times

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Evaporation kinetics of sessile droplets of aqueous suspensions of inorganic nanoparticles.

Anna Trybala, Adaora Okoye, Sergey Semenov, Hezekiah Agogo, Ramón G Rubio, Francisco Ortega, Víctor M Starov,

Evaporation kinetics of sessile droplets of aqueous suspension of inorganic nanoparticles on solid substrates of various wettabilities is investigated from both experimental and theoretical points of view. Experimental results on evaporation of various kinds of inorganic nanosuspensions on solid surfaces of different hydrophobicities/hydrophilicities are compared with our theoretical predictions of ... Read more >>

J Colloid Interface Sci (Journal of colloid and interface science)
[2013, 403:49-57]

Cited: 3 times

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Computer simulations of evaporation of pinned sessile droplets: influence of kinetic effects.

Sergey Semenov, Victor M Starov, Ramon G Rubio, Manuel G Velarde,

The aim of the current work is to present results of computer simulations, which show the influence of kinetic effects on evaporation of pinned sessile water droplets of submicrometer size placed on a heat conductive substrate. The computer simulation model also takes into account the following phenomena: influence of curvature ... Read more >>

Langmuir (Langmuir : the ACS journal of surfaces and colloids)
[2012, 28(43):15203-15211]

Cited: 6 times

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Molecular design of the phenol type extractants.

Sergey A Semenov, Aleksandr M Reznik,

A method of optimisation of new extractants structure using the desirable function has been developed. Earlier the desirable function has been proposed by Harrington (Ind Qual Control 21: 494-498, 1965) for the optimisation of processes with several response functions. The developed method of optimisation of new extractants structure has been ... Read more >>

Springerplus (SpringerPlus)
[2013, 2(1):120]

Cited: 0 times

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Thickness, stability and contact angle of liquid films on and inside nanofibres, nanotubes and nanochannels.

Davide Mattia, Victor Starov, Sergey Semenov,

While the stability of liquid films on substrates is a classical topic of colloidal science, the availability of nanostructured materials, such as nanotubes, nanofibres and nanochannels, has raised the question of how the stability of liquid films and their wetting behaviour is affected by nanoscale confinement. This paper will present ... Read more >>

J Colloid Interface Sci (Journal of colloid and interface science)
[2012, 384(1):149-156]

Cited: 0 times

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Optical gain and laser generation in bismuth-doped silica fibers free of other dopants.

Igor A Bufetov, Mikhail A Melkumov, Sergey V Firstov, Alexey V Shubin, Sergey L Semenov, Vladimir V Vel'miskin, Andrey E Levchenko, Elena G Firstova, Evgeny M Dianov,

Luminescence emission and excitation spectra of bismuth-doped silica optical fibers free of other dopants have been obtained to construct an emission-excitation map in a wide wavelength range of 400-1600 nm. The main low-lying energy levels of the bismuth active centers in such fibers have been determined. For the first time ... Read more >>

Opt Lett (Optics letters)
[2011, 36(2):166-168]

Cited: 15 times

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An iron-capped metal-organic polyyne: {[Fe](C[triple bond]C)2[W][triple bond]CC[triple bond]CC[triple bond][W](C[triple bond]C)2[Fe]}.

Sergey N Semenov, Shiva F Taghipourian, Olivier Blacque, Thomas Fox, Koushik Venkatesan, Heinz Berke,

The organometallic conjugated complex H(C[triple bond]C)(2)[W][triple bond]CC[triple bond]CC[triple bond][W](C[triple bond]C)(2)H {[W] = W(dppe)(2); dppe = 1,2-bis(diphenylphosphino)ethane} containing a ditungstenatetradecaheptayne unit was synthesized by utilizing a new and efficient coupling method. The stannylated derivative was converted to the tetranuclear complex, which exhibits efficient long-range electron transfer. ... Read more >>

J. Am. Chem. Soc. (Journal of the American Chemical Society)
[2010, 132(22):7584-7585]

Cited: 4 times

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Electronic communication in dinuclear C(4)-bridged tungsten complexes.

Sergey N Semenov, Olivier Blacque, Thomas Fox, Koushik Venkatesan, Heinz Berke,

The dinuclear tungsten carbyne [X(CO)(2)(dppe)WC(4)W(dppe)(CO)(2)X] (dppe = 1,2-bis(diphenylphosphino)ethane; X = I (3), Cl (7)) complexes were prepared from the bisacetylide precursor Li(2)[(CO)(3)(dppe)WC(4)W(CO)(3)(dppe)] (2) via oxidative replacement of one CO group at each tungsten center with a halide substituent. The iodide ligand in 3 could be substituted with isothiocyanate or triflate ... Read more >>

J. Am. Chem. Soc. (Journal of the American Chemical Society)
[2010, 132(9):3115-3127]

Cited: 11 times

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Self-coupling of a 4-H-butatrienylidene tungsten complex.

Sergey N Semenov, Olivier Blacque, Thomas Fox, Koushik Venkatesan, Heinz Berke,

Tungsten tryst: A 4-H-butatrienylidene complex of tungsten was successfully isolated and structurally characterized. It undergoes a unique self-coupling, which leads to a dimer (see picture; P pink, O red) with a cross-conjugated pi system and with electrochemically and magnetically active metal centers. ... Read more >>

Angew. Chem. Int. Ed. Engl. (Angewandte Chemie (International ed. in English))
[2009, 48(28):5203-5206]

Cited: 1 time

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Role of the ancillary ligand N,N-dimethylaminoethanol in the sensitization of Eu(III) and Tb(III) luminescence in dimeric beta-diketonates.

Svetlana V Eliseeva, Oxana V Kotova, Frédéric Gumy, Sergey N Semenov, Vadim G Kessler, Leonid S Lepnev, Jean-Claude G Bünzli, Natalia P Kuzmina,

Two types of dimeric complexes [Ln2(hfa)6(mu2-O(CH2)2NHMe2)2] and [Ln(thd)2(mu2,eta2-O(CH2)2NMe2)]2 (Ln = YIII, EuIII, GdIII, TbIII, TmIII, LuIII; hfa- = hexafluoroacetylacetonato, thd- = dipivaloylmethanato) are obtained by reacting [Ln(hfa)3(H2O)2] and [Ln(thd)3], respectively, with N,N-dimethylaminoethanol in toluene and are fully characterized. X-ray single crystal analysis performed for the TbIII compounds confirms their dimeric ... Read more >>

J Phys Chem A (The journal of physical chemistry. A)
[2008, 112(16):3614-3626]

Cited: 13 times

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