Results 31 to 40 of about 860,994 (301)

Cold ion chemistry

, 2017
Studying chemical reactions at very low temperatures is of importance for the understanding of fundamental physical and chemical processes. At very low energies, collisions are dominated by only a few partial waves. Thus, studies in this regime allow the characterisation of quantum effects which depend on the collisional angular momentum, e.g ...
Zhang, Dongdong, Willitsch, Stefan
openaire   +2 more sources

Enhancement of the Chemiluminescence Response of Enzymatic Reactions by Plasmonic Surfaces for Biosensing Applications

Nano Biomedicine and Engineering, 2015
We report the enhancement of chemiluminescence response of horseradish peroxidase (HRP) in bioassays by plasmonic surfaces, which are comprised of (i) silver island films (SIFs) and (ii) metal thin films (silver, gold, copper, and nickel, 1 nm thick ...
Biebele Abel, Babatunde Odukoya, Muzaffer Mohammed, Kadir Aslan   +3 more
doaj   +1 more source

Beyond the pseudo-time-dependent approach: chemical models of dense core precursors

, 2010
Context: Chemical models of dense cloud cores often utilize the so-called pseudo-time-dependent approximation, in which the physical conditions are held fixed and uniform as the chemistry occurs.
Bergin, Bergin, Burgh, Chang, Crutcher, Cuppen, Draine, Draine, Draine, E. A. Bergin, E. Herbst, Fournier, Frerking, G. E. Hassel, Garrod, Garrod, Garrod, Gredel, Grim, Hartmann, Hasegawa, Le Petit, Lee, Liszt, Liszt, McKee, Mitchell, Murakawa, Nejad, Nguyen, Nummelin, Ormel, Pineau des Forêts, Rachford, Reach, Roser, Ruffle, Sheffer, Sonnentrucker, Teixeira, Tielens, Whittet, Whittet, Whittet, Whittet, Zucconi, Öberg, Öberg, Öberg   +48 more
core   +1 more source

Rapid crystallization of glycine using metal-assisted and microwave-accelerated evaporative crystallization: the effect of engineered surfaces and sample volume

Nano Biomedicine and Engineering, 2012
Metal-Assisted and Microwave-Accelerated Evaporative Crystallization (MA-MAEC), is a new approach to crystallization of drug compounds, amino acids, DNA and proteins.
Tsehai A.J. Grell, Melissa A. Pinard, Danielle Pettis, Kadir Aslan   +3 more
doaj   +1 more source

Combined ion and atom trap for low temperature ion-atom physics

, 2011
We report an experimental apparatus and technique which simultaneously traps ions and cold atoms with spatial overlap. Such an apparatus is motivated by the study of ion-atom processes at temperatures ranging from hot to ultra-cold.
A. Drakoudis, A. Sharma, A.J. Leggett, A.T. Grier, C. Zhu, C. Zipkes, C. Zipkes, C. Zipkes, D. Leibfried, E.B. Alexandrov, G. Werth, J. Ye, K. Blaum, K. Ravi, K. Ravi, M. Cetina, M. Meucci, M.T. Bell, O.P. Makarov, R. Côté, R. Côté, S. A. Rangwala, S. Lee, S. Schmid, T. Takekoshi, W.W. Smith   +25 more
core   +1 more source

Plasmon-Enhanced Enzymatic Reactions: A Study of Nanoparticle-Enzyme Distanceand Nanoparticle Loading-Dependent Enzymatic Activity

Nano Biomedicine and Engineering, 2011
A detailed investigation of the dependence of the efficiency of plasmon-enhanced enzymatic reactions on the distance between silver island films (SIFs) and horse radish peroxidase (HRP) enzyme and on the loading of SIFs on glass surfaces is presented ...
Biebele Abel, Alice Akinsule, Canisha Andrews, Kadir Aslan   +3 more
doaj   +1 more source

Structure of the Alkali-metal-atom-Strontium molecular ions: towards photoassociation and formation of cold molecular ions

, 2011
The potential energy curves, permanent and transition dipole moments, and the static dipolar polarizability, of molecular ions composed of one alkali-metal atom and a Strontium ion are determined with a quantum chemistry approach.
M. Aymar, Moore C., O. Dulieu, R. Guérout   +3 more
core   +1 more source

Photodissociation of water in crystalline ice: a molecular dynamics study [PDF]

, 2005
Ultraviolet irradiation of ice is of great interest for understanding the chemistry in both atmospheric and astrophysical environments. In interstellar space, photodissociation of H2O molecules can be a driving force behind the chemistry on icy dust ...
Al-Halabi, Allen, Aschi, Bartels, Bernal, Bursulaya, Chakarov, Chan, Chipman, Dobbyn, Ehrenfreund, Ewine F. van Dishoeck, Geert-Jan Kroes, Gerakines, Ghormley, Huber, Jorgensen, Khusnatdinov, Klein, Klán, Kobayashi, Langford, Larsen, Leto, Miller, Osted, Poulsen, Sander, Schinke, Stefan Andersson, Thomsen, van Harrevelt, van Harrevelt, Watanabe, Yabushita, Yang, Zhang   +36 more
core   +3 more sources

Crystallization of Lysozyme on Metal Surfaces Using a Monomode Microwave System

Nano Biomedicine and Engineering, 2016
The effect of metal surfaces on the crystallization of lysozyme using the Metal-Assisted and Microwave-Accelerated Evaporative Crystallization (MA-MAEC) technique and a monomode microwave system is described.
Kevin Mauge-Lewis, Brittney Gordon, Fareeha Syed, Saarah Syed, Enock Bonyi, Muzaffer Mohammed, Eric A. Toth, Dereje Seifu, Kadir Aslan   +8 more
doaj   +1 more source

Crystallization of Amino Acids on a 21-well Circular PMMA Platform Using Metal-Assisted and Microwave-Accelerated Evaporative Crystallization

Nano Biomedicine and Engineering, 2013
We describe the design and the use of a circular poly(methyl methacrylate) (PMMA) crystallization platform capable of processing 21 samples in Metal-Assisted and Microwave-Accelerated Evaporative Crystallization (MA-MAEC).
Anginelle M. Alabanza, Muzaffer Mohammed, Kadir Aslan   +2 more
doaj   +1 more source