LIVIVO - Search results -

Search results

Result 1 - 10 of total 27

Search options

Article ; Online: Microstructure and crystal order during freezing of supercooled water drops.

Kalita, Armin / Mrozek-McCourt, Maximillian / Kaldawi, Thomas F / Willmott, Philip R / Loh, N Duane / Marte, Sebastian / Sierra, Raymond G / Laksmono, Hartawan / Koglin, Jason E / Hayes, Matt J / Paul, Robert H / Guillet, Serge A H / Aquila, Andrew L / Liang, Mengning / Boutet, Sébastien / Stan, Claudiu A

Nature

2023 Volume 620, Issue 7974, Page(s) 557–561

Abstract: Supercooled water droplets are widely used to study supercooled ... ...

Abstract	Supercooled water droplets are widely used to study supercooled water
Language	English
Publishing date	2023-08-16
Publishing country	England
Document type	Journal Article
ZDB-ID	120714-3
ISSN	1476-4687 ; 0028-0836
ISSN (online)	1476-4687
ISSN	0028-0836
DOI	10.1038/s41586-023-06283-2
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 26: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (1.OG) ab Jg. 2022: Lesesaal (EG)
Zs.MG 9: Show issues
Zs.MO 244: Show issues

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Methanol nucleation in a supersonic nozzle.

Laksmono, Hartawan / Tanimura, Shinobu / Wyslouzil, Barbara E

The Journal of chemical physics

2011 Volume 135, Issue 7, Page(s) 74305

Abstract: We determined the partial pressures p(Jmax), temperatures T(Jmax), monomer supersaturations S(Jmax), and characteristic times Δt(Jmax ) corresponding to the maximum nucleation rates of methanol in a supersonic nozzle. We found that T(Jmax) increased from ...

Abstract	We determined the partial pressures p(Jmax), temperatures T(Jmax), monomer supersaturations S(Jmax), and characteristic times Δt(Jmax ) corresponding to the maximum nucleation rates of methanol in a supersonic nozzle. We found that T(Jmax) increased from 202.2 K to 223.7 K as p(Jmax) increased from 67.1 to 413.2 Pa, while the maximum nucleation rate J(max) changed by less than a factor of 4 over the measurement range. Our nucleation rates appear reasonably consistent with measurements in other devices and are within one order of magnitude of the nucleation rates predicted by classical nucleation theory.
Language	English
Publishing date	2011-08-21
Publishing country	United States
Document type	Journal Article
ZDB-ID	3113-6
ISSN	1089-7690 ; 0021-9606
ISSN (online)	1089-7690
ISSN	0021-9606
DOI	10.1063/1.3624756
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Bonn / Germany

Z 4' 49/16: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: A cryogenic supersonic nozzle apparatus to study homogeneous nucleation of Ar and other simple molecules.

Sinha, Somnath / Laksmono, Hartawan / Wyslouzil, Barbara E

The Review of scientific instruments

2008 Volume 79, Issue 11, Page(s) 114101

Abstract: We present a supersonic nozzle apparatus to study homogeneous nucleation of argon and other simple molecules. Experiments can be conducted with pure condensable vapor or with condensable vapor-carrier gas mixtures. The flow through the nozzle is ... ...

Abstract	We present a supersonic nozzle apparatus to study homogeneous nucleation of argon and other simple molecules. Experiments can be conducted with pure condensable vapor or with condensable vapor-carrier gas mixtures. The flow through the nozzle is continuous, and expansions typically start at temperatures T(0) in the range of 100<T(0)/K<120, and pressures p(0) in the range of 30<p(0)/kPa<36. The gas mixture is cooled using a tube and fin heat exchanger by evaporating liquid nitrogen on the tube side. The nozzle sidewalls are also cooled with liquid nitrogen to maintain them at a temperature approximately 20 K higher than the stagnation temperature. Static pressure measurements detect the onset of condensation, and the other properties of the flow are derived by integrating the diabatic flow equations. We present sample experimental results for pure argon where at the onset of condensation, temperatures T(on) range from 47.5<T(on)/K<49.5 and pressures p(on) range from 4.2<p(on)/kPa<4.9.<br />
Language	English
Publishing date	2008-11
Publishing country	United States
Document type	Journal Article
ZDB-ID	209865-9
ISSN	1089-7623 ; 0034-6748
ISSN (online)	1089-7623
ISSN	0034-6748
DOI	10.1063/1.3006002
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Bonn / Germany

Z 4' 46/112: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Argon nucleation in a cryogenic supersonic nozzle.

Sinha, Somnath / Bhabhe, Ashutosh / Laksmono, Hartawan / Wölk, Judith / Strey, Reinhard / Wyslouzil, Barbara

The Journal of chemical physics

2010 Volume 132, Issue 6, Page(s) 64304

Abstract: We have measured pressures p and temperatures T corresponding to the maximum nucleation rate of argon in a cryogenic supersonic nozzle apparatus where the estimated nucleation rates are J=10(17+/-1) cm(-3) s(-1). As T increases from 34 to 53 K, p ... ...

Abstract	We have measured pressures p and temperatures T corresponding to the maximum nucleation rate of argon in a cryogenic supersonic nozzle apparatus where the estimated nucleation rates are J=10(17+/-1) cm(-3) s(-1). As T increases from 34 to 53 K, p increases from 0.47 to 8 kPa. Under these conditions, classical nucleation theory predicts nucleation rates of 11-13 orders of magnitude lower than the observed rates while mean field kinetic nucleation theory predicts the observed rates within 1 order of magnitude. The current data set appears consistent with the measurements of Iland et al. [J. Chem. Phys. 127, 154506 (2007)] in the cryogenic nucleation pulse chamber. Combining the two data sets suggests that classical nucleation theory fails because it overestimates both the critical cluster size and the excess internal energy of the critical clusters.
Language	English
Publishing date	2010-02-14
Publishing country	United States
Document type	Journal Article
ZDB-ID	3113-6
ISSN	1089-7690 ; 0021-9606
ISSN (online)	1089-7690
ISSN	0021-9606
DOI	10.1063/1.3299273
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Bonn / Germany

Z 4' 49/16: Show issues

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: How Cubic Can Ice Be?

Amaya, Andrew J / Pathak, Harshad / Modak, Viraj P / Laksmono, Hartawan / Loh, N Duane / Sellberg, Jonas A / Sierra, Raymond G / McQueen, Trevor A / Hayes, Matt J / Williams, Garth J / Messerschmidt, Marc / Boutet, Sébastien / Bogan, Michael J / Nilsson, Anders / Stan, Claudiu A / Wyslouzil, Barbara E

The journal of physical chemistry letters

2017 Volume 8, Issue 14, Page(s) 3216–3222

Abstract: Using an X-ray laser, we investigated the crystal structure of ice formed by homogeneous ice nucleation in deeply supercooled water nanodrops (r ≈ 10 nm) at ∼225 K. The nanodrops were formed by condensation of vapor in a supersonic nozzle, and the ice ... ...

Abstract	Using an X-ray laser, we investigated the crystal structure of ice formed by homogeneous ice nucleation in deeply supercooled water nanodrops (r ≈ 10 nm) at ∼225 K. The nanodrops were formed by condensation of vapor in a supersonic nozzle, and the ice was probed within 100 μs of freezing using femtosecond wide-angle X-ray scattering at the Linac Coherent Light Source free-electron X-ray laser. The X-ray diffraction spectra indicate that this ice has a metastable, predominantly cubic structure; the shape of the first ice diffraction peak suggests stacking-disordered ice with a cubicity value, χ, in the range of 0.78 ± 0.05. The cubicity value determined here is higher than those determined in experiments with micron-sized drops but comparable to those found in molecular dynamics simulations. The high cubicity is most likely caused by the extremely low freezing temperatures and by the rapid freezing, which occurs on a ∼1 μs time scale in single nanodroplets.
Language	English
Publishing date	2017-07-20
Publishing country	United States
Document type	Journal Article
ISSN	1948-7185
ISSN (online)	1948-7185
DOI	10.1021/acs.jpclett.7b01142
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article: Goniometer-based femtosecond X-ray diffraction of mutant 30S ribosomal subunit crystals.

Dao, E Han / Sierra, Raymond G / Laksmono, Hartawan / Lemke, Henrik T / Alonso-Mori, Roberto / Coey, Aaron / Larsen, Kevin / Baxter, Elizabeth L / Cohen, Aina E / Soltis, S Michael / DeMirci, Hasan

Structural dynamics (Melville, N.Y.)

2015 Volume 2, Issue 4, Page(s) 41706

Abstract: In this work, we collected radiation-damage-free data from a set of cryo-cooled crystals for a novel 30S ribosomal subunit mutant using goniometer-based femtosecond crystallography. Crystal quality assessment for these samples was conducted at the X-ray ... ...

Abstract	In this work, we collected radiation-damage-free data from a set of cryo-cooled crystals for a novel 30S ribosomal subunit mutant using goniometer-based femtosecond crystallography. Crystal quality assessment for these samples was conducted at the X-ray Pump Probe end-station of the Linac Coherent Light Source (LCLS) using recently introduced goniometer-based instrumentation. These 30S subunit crystals were genetically engineered to omit a 26-residue protein, Thx, which is present in the wild-type Thermus thermophilus 30S ribosomal subunit. We are primarily interested in elucidating the contribution of this ribosomal protein to the overall 30S subunit structure. To assess the viability of this study, femtosecond X-ray diffraction patterns from these crystals were recorded at the LCLS during a protein crystal screening beam time. During our data collection, we successfully observed diffraction from these difficult-to-grow 30S ribosomal subunit crystals. Most of our crystals were found to diffract to low resolution, while one crystal diffracted to 3.2 Å resolution. These data suggest the feasibility of pursuing high-resolution data collection as well as the need to improve sample preparation and handling in order to collect a complete radiation-damage-free data set using an X-ray Free Electron Laser.
Language	English
Publishing date	2015-04-30
Publishing country	United States
Document type	Journal Article
ZDB-ID	2758684-4
ISSN	2329-7778
ISSN	2329-7778
DOI	10.1063/1.4919407
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Methods development for diffraction and spectroscopy studies of metalloenzymes at X-ray free-electron lasers.

Kern, Jan / Hattne, Johan / Tran, Rosalie / Alonso-Mori, Roberto / Laksmono, Hartawan / Gul, Sheraz / Sierra, Raymond G / Rehanek, Jens / Erko, Alexei / Mitzner, Rolf / Wernet, Phillip / Bergmann, Uwe / Sauter, Nicholas K / Yachandra, Vittal / Yano, Junko

Philosophical transactions of the Royal Society of London. Series B, Biological sciences

2014 Volume 369, Issue 1647, Page(s) 20130590

Abstract: X-ray free-electron lasers (XFELs) open up new possibilities for X-ray crystallographic and spectroscopic studies of radiation-sensitive biological samples under close to physiological conditions. To facilitate these new X-ray sources, tailored ... ...

Abstract	X-ray free-electron lasers (XFELs) open up new possibilities for X-ray crystallographic and spectroscopic studies of radiation-sensitive biological samples under close to physiological conditions. To facilitate these new X-ray sources, tailored experimental methods and data-processing protocols have to be developed. The highly radiation-sensitive photosystem II (PSII) protein complex is a prime target for XFEL experiments aiming to study the mechanism of light-induced water oxidation taking place at a Mn cluster in this complex. We developed a set of tools for the study of PSII at XFELs, including a new liquid jet based on electrofocusing, an energy dispersive von Hamos X-ray emission spectrometer for the hard X-ray range and a high-throughput soft X-ray spectrometer based on a reflection zone plate. While our immediate focus is on PSII, the methods we describe here are applicable to a wide range of metalloenzymes. These experimental developments were complemented by a new software suite, cctbx.xfel. This software suite allows for near-real-time monitoring of the experimental parameters and detector signals and the detailed analysis of the diffraction and spectroscopy data collected by us at the Linac Coherent Light Source, taking into account the specific characteristics of data measured at an XFEL.
MeSH term(s)	Electrons ; Lasers ; Manganese Compounds/chemistry ; Photosystem II Protein Complex/chemistry ; Software ; Spectrometry, X-Ray Emission/methods ; X-Ray Diffraction/methods
Chemical Substances	Manganese Compounds ; Photosystem II Protein Complex
Language	English
Publishing date	2014-06-09
Publishing country	England
Document type	Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S. ; Review
ZDB-ID	208382-6
ISSN	1471-2970 ; 0080-4622 ; 0264-3839 ; 0962-8436
ISSN (online)	1471-2970
ISSN	0080-4622 ; 0264-3839 ; 0962-8436
DOI	10.1098/rstb.2013.0590
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Einzelsignatur: Show issues

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Monomer, clusters, liquid: an integrated spectroscopic study of methanol condensation.

Laksmono, Hartawan / Tanimura, Shinobu / Allen, Heather C / Wilemski, Gerald / Zahniser, Mark S / Shorter, Joanne H / Nelson, David D / McManus, J Barry / Wyslouzil, Barbara E

Physical chemistry chemical physics : PCCP

2011 Volume 13, Issue 13, Page(s) 5855–5871

Abstract: We have combined static pressure, spectroscopic temperature, Fourier transform infrared spectroscopy (FTIR), and small angle X-ray scattering (SAXS) measurements to develop a detailed picture of methanol condensing from a dilute vapor-carrier gas mixture ...

Abstract	We have combined static pressure, spectroscopic temperature, Fourier transform infrared spectroscopy (FTIR), and small angle X-ray scattering (SAXS) measurements to develop a detailed picture of methanol condensing from a dilute vapor-carrier gas mixture under the highly supersaturated conditions present in a supersonic nozzle. In our experiments, methanol condensation can be divided into three stages as the gas mixture expands in the nozzle. In the first stage, as the temperature decreases rapidly, small methanol n-mers (clusters) form, increase in concentration, and evolve in size. In the second stage, the temperature decreases more slowly, and the n-mer concentrations continue to rise. Thermodynamic and FTIR experiments cannot, however, definitively establish if the average cluster size is constant or if it continues to increase. Finally, when the vapor becomes supersaturated enough, liquid droplets form via nucleation and growth, consuming more monomer and reducing the concentration of clusters. At the point where liquid first appears, cluster formation has already consumed up to 30% of the monomer. This is significantly more than is predicted by a model that describes the vapor phase as an equilibrium mixture of methanol monomer, dimer, and tetramer. An energy balance suggests that a significant fraction of the cluster population is larger than the tetramer, while preliminary SAXS measurements suggest that these clusters contain, on average, 6 monomers.
Language	English
Publishing date	2011-04-07
Publishing country	England
Document type	Journal Article
ZDB-ID	1476244-4
ISSN	1463-9084 ; 1463-9076
ISSN (online)	1463-9084
ISSN	1463-9076
DOI	10.1039/c0cp02485f
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article ; Online: Serial femtosecond X-ray diffraction of 30S ribosomal subunit microcrystals in liquid suspension at ambient temperature using an X-ray free-electron laser.

Demirci, Hasan / Sierra, Raymond G / Laksmono, Hartawan / Shoeman, Robert L / Botha, Sabine / Barends, Thomas R M / Nass, Karol / Schlichting, Ilme / Doak, R Bruce / Gati, Cornelius / Williams, Garth J / Boutet, Sébastien / Messerschmidt, Marc / Jogl, Gerwald / Dahlberg, Albert E / Gregory, Steven T / Bogan, Michael J

Acta crystallographica. Section F, Structural biology and crystallization communications

2013 Volume 69, Issue Pt 9, Page(s) 1066–1069

Abstract: High-resolution ribosome structures determined by X-ray crystallography have provided important insights into the mechanism of translation. Such studies have thus far relied on large ribosome crystals kept at cryogenic temperatures to reduce radiation ... ...

Abstract	High-resolution ribosome structures determined by X-ray crystallography have provided important insights into the mechanism of translation. Such studies have thus far relied on large ribosome crystals kept at cryogenic temperatures to reduce radiation damage. Here, the application of serial femtosecond X-ray crystallography (SFX) using an X-ray free-electron laser (XFEL) to obtain diffraction data from ribosome microcrystals in liquid suspension at ambient temperature is described. 30S ribosomal subunit microcrystals diffracted to beyond 6 Å resolution, demonstrating the feasibility of using SFX for ribosome structural studies. The ability to collect diffraction data at near-physiological temperatures promises to provide fundamental insights into the structural dynamics of the ribosome and its functional complexes.
MeSH term(s)	Crystallization ; Crystallography, X-Ray ; Electrons ; Lasers ; Ribosome Subunits, Small, Bacterial/chemistry ; Ribosome Subunits, Small, Bacterial/ultrastructure ; Temperature ; Thermus thermophilus/chemistry ; X-Ray Diffraction
Language	English
Publishing date	2013-08-19
Publishing country	England
Document type	Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
ISSN	1744-3091
ISSN (online)	1744-3091
DOI	10.1107/S174430911302099X
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Anomalous Behavior of the Homogeneous Ice Nucleation Rate in "No-Man's Land".

The journal of physical chemistry letters

2015 Volume 6, Issue 14, Page(s) 2826–2832

Abstract: We present an analysis of ice nucleation kinetics from near-ambient pressure water as temperature decreases below the homogeneous ... ...

Abstract	We present an analysis of ice nucleation kinetics from near-ambient pressure water as temperature decreases below the homogeneous limit
Language	English
Publishing date	2015-07-16
Publishing country	United States
Document type	Journal Article
ISSN	1948-7185
ISSN (online)	1948-7185
DOI	10.1021/acs.jpclett.5b01164
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

In stock of ZB MED Bonn / Germany

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

Inter-library loan at ZB MED