Results 11 to 20 of about 206,941 (297)

Continuous probing of cold complex molecules with infrared frequency comb spectroscopy [PDF]

Nature, 2016
Cavity-enhanced frequency comb spectroscopy for molecule detection in the mid-infrared powerfully combines high resolution, high sensitivity, and broad spectral coverage. However, this technique, and essentially all spectroscopic methods, is limited in application to relatively small, simple molecules.
Spaun, Ben, Changala, P. Bryan, Patterson, David, Bjork, Bryce J., Heckl, Oliver H., Doyle, John M., Ye, Jun   +6 more
openaire   +5 more sources

Impact of crowded environments on binding between protein and single-stranded DNA

Scientific Reports, 2021
The concept of Molecular Crowding depicts the high density of diverse molecules present in the cellular interior. Here, we determine the impact of low molecular weight and larger molecules on binding capacity of single-stranded DNA (ssDNA) to the cold ...
Birgit Köhn, Patricia Schwarz, Pernilla Wittung-Stafshede, Michael Kovermann   +3 more
doaj   +1 more source

Spectroscopy, Manipulation and Trapping of Neutral Atoms, Molecules, and Other Particles Using Optical Nanofibers: A Review

Sensors, 2013
The use of tapered optical fibers, i.e., optical nanofibers, for spectroscopy and the detection of small numbers of particles, such as neutral atoms or molecules, has been gaining interest in recent years. In this review, we briefly introduce the optical
Síle Nic Chormaic, Viet Giang Truong, Laura Russell, Eugen Prel, Mary Frawley, Ravi Kumar, Kieran Deasy, Michael J. Morrissey   +7 more
doaj   +1 more source

Using a B-Phycoerythrin Extract as a Natural Colorant: Application in Milk-Based Products

Molecules, 2021
Nowadays, there is a growing interest in finding new coloring molecules of natural origin that can increase and diversify the offer of natural food dyes already present in the market.
Ana Belén García, Eleonora Longo, Mª Carmen Murillo, Ruperto Bermejo   +3 more
doaj   +1 more source

Infrared Comb Spectroscopy of Buffer-Gas-Cooled Molecules: Toward Absolute Frequency Metrology of Cold Acetylene [PDF]

International Journal of Molecular Sciences, 2020
We review the recent developments in precision ro-vibrational spectroscopy of buffer-gas-cooled neutral molecules, obtained using infrared frequency combs either as direct probe sources or as ultra-accurate optical rulers. In particular, we show how coherent broadband spectroscopy of complex molecules especially benefits from drastic simplification of ...
Santamaria L, Di Sarno V, Aiello R, De Rosa M, Ricciardi I, De Natale P, Maddaloni P   +6 more
openaire   +3 more sources

Preparation of an ultra-cold sample of ammonia molecules for precision measurements [PDF]

, 2014
We present experiments in which an ultra-cold sample of ammonia molecules is released from an electrostatic trap and recaptured after a variable time.
Bethlem, Hendrick L., Hoekstra, Steven, Quintero-Pérez, Marina, Wall, Thomas E.   +3 more
core   +2 more sources

Spectroscopy of Cold LiCa Molecules Formed on Helium Nanodroplets

The Journal of Physical Chemistry A, 2013
We report on the formation of mixed alkali-alkaline earth molecules (LiCa) on helium nanodroplets and present a comprehensive experimental and theoretical study of the ground and excited states of LiCa. Resonance enhanced multiphoton ionization time-of-flight (REMPI-TOF) spectroscopy and laser induced fluorescence (LIF) spectroscopy were used for the ...
Krois, Günter, Pototschnig, Johann V., Lackner, Florian, Ernst, Wolfgang E.   +3 more
openaire   +2 more sources

Cold collision and high-resolution spectroscopy of buffer-gas-cooled BaF molecules [PDF]

Physical Review A, 2017
We reported a detailed experimental study of the cold collision of Barium monofluoride (BaF) with buffer gas and the high-resolution spectroscopy relevant with direct laser cooling. BaF molecules are efficiently produced with laser ablation and buffer-gas cooled in a cryogenic apparatus.
Bu, Wenhao, Chen, Tao, Lv, Guitao, Yan, Bo   +3 more
openaire   +2 more sources

LABORATORY INVESTIGATION OF X-RAY PHOTOLYSIS OF METHANOL ICE AND ITS IMPLICATION ON ASTROPHYSICAL ENVIRONMENTS [PDF]

Química Nova, 2020
Methanol (CH3OH) is one of the most abundant organic molecules in astrophysical environments. It has been found in cold regions such as surfaces of comets, ices near young stellar objects and protoplanetary disks, as well as in the gas phase in different
Fabricio M. Freitas, Sérgio Pilling
doaj   +2 more sources

The Buffer Gas Beam: An Intense, Cold, and Slow Source for Atoms and Molecules [PDF]

, 2011
Beams of atoms and molecules are stalwart tools for spectroscopy and studies of collisional processes. The supersonic expansion technique can create cold beams of many species of atoms and molecules.
Ackermann R. J., Amirav A., Anderson D. T., Anderson J. B., Anderson M. H., André A., Ball C. D., Ball C. D., Ball C. D., Barkov L. M., Barry J. F., Beaky M. M., Bergmann K., Bethlem H. L., Bethlem H. L., Bethlem H. L., Bickman S., Bird G., Blatt S., Bouchiat M. A., Budker D., Campargue R., Campbell W., Campbell W., Campbell W. C., Campbell W. C., Carr L. D., Chichkov B. N., Chin C., Chin C., Commins E. D., Conti R., Davis G. M., Davis K. B., deCarvalho R., DeMille D., DeMille D., DeMille D., Di Rosa M. D., Dietz T. G., Dirac P. A. M., Doret S. C., Doyle J., Dzuba V. A., Edvardsson D., Even U., Falkenau M., Fernandez De La Mora J., Flambaum V., Flambaum V., Flambaum V. V., Fletcher D. A., Fortson N., Fox R., Frankcombe T. J., Fraser H. J., Friedrich B., Gilgenbach R. M., Gilijamse J. J., Gilijamse J. J., Ginges J., Greiner M., Guèna J., Hasted J. B., Hatakeyama A., Herzberg G., Hillenkamp M., Hinds E. A., Hoekstra S., Hopkins J. B., Hsin-I Lu, Hudson E. R., Hudson J. J., Hummon M., Hummon M., Hutzler N. R., Isaev T., John M. Doyle, Junglen T., Ketterle W., Khriplovich I. B., Kimball D., Klemperer W., Krems R. V., Krems R. V., Kuwamoto T., Labzovskii L., Lahaye T., Leanhardt A. E., Lee J., Levy D. H., Li K., Lovejoy C. M., Lu H., Lu M.-J., Lu M.-J., Luria K., Maussang K., Maxwell S. E., McClelland J. J., Mengel M., Messer J. K., Metcalf H. J., Micheli A., Ni K.-K., Ni K.-K., Nicholas R. Hutzler, Olander D. R., Ospelkaus S., Pandey K., Pathria R. K., Patterson D., Patterson D., Patterson D., Pauly H., Pobell F., Purcell E. M., Raab E. L., Rabl P., Ramsey N., Rangwala S. A., Ronningen T. J., Rosenband T., Rowe B. R., Rushchanskii K. Z., Sabbah H., Sandars P. G. H., Sandars P. G. H., Sawyer B. C., Sawyer B. C., Schnell M., Scoles G., Shafer-Ray N., Shuman E. S., Shuman E. S., Simon J., Skoff S. M., Smith J. H., Solmeyer N. E., Sommer C., Sommer C., Sone Y., Speller E., Stuhl B. K., Sukachev D., Sushkov A., Sushkov O. P., Szewc C., Tarbutt M. R., Tsigutkin K., Tu M.-F., Uhlenberg G., van Buuren L. D., van de Meerakker S. Y. T., van de Meerakker S. Y. T., Vogl U., Von Kármán T., Vutha A. C., Weinstein J. D., Weinstein J. D., Willey D. R., Willey D. R., Wood C. S., Youn S. H., Zel’dovich Y. B., Zwierlein M. W.   +165 more
core   +2 more sources