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Showing 13 to 24 of 78 entries
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Comparison of intensity and absolute contrast of simulated and experimental high-resolution transmission electron microscopy images for different multislice simulation methods.

Ultramicroscopy

Krause FF, Müller K, Zillmann D, Jansen J, Schowalter M, Rosenauer A.
PMID: 23822882
Ultramicroscopy. 2013 Nov;134:94-101. doi: 10.1016/j.ultramic.2013.05.015. Epub 2013 May 30.

The Stobbs factor problem, a major difference of absolute contrast between experimental and simulated high resolution transmission electron microscopy images has been reported frequently. In this respect, some modifications to the multislice simulation techniques were proposed to improve the...

On the need for an international effort to capture, share and use crystallization screening data.

Acta crystallographica. Section F, Structural biology and crystallization communications

Newman J, Bolton EE, Müller-Dieckmann J, Fazio VJ, Gallagher DT, Lovell D, Luft JR, Peat TS, Ratcliffe D, Sayle RA, Snell EH, Taylor K, Vallotton P, Velanker S, von Delft F.
PMID: 22442216
Acta Crystallogr Sect F Struct Biol Cryst Commun. 2012 Mar 01;68:253-8. doi: 10.1107/S1744309112002618. Epub 2012 Feb 15.

When crystallization screening is conducted many outcomes are observed but typically the only trial recorded in the literature is the condition that yielded the crystal(s) used for subsequent diffraction studies. The initial hit that was optimized and the results...

Kosterlitz-Thouless and Potts transitions in a generalized XY model.

Physical review. E, Statistical, nonlinear, and soft matter physics

Canova GA, Levin Y, Arenzon JJ.
PMID: 24580191
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Jan;89(1):012126. doi: 10.1103/PhysRevE.89.012126. Epub 2014 Jan 17.

We present extensive numerical simulations of a generalized XY model with nematic-like terms recently proposed by Poderoso et al. [ Phys. Rev. Lett. 106 067202 (2011)]. Using finite size scaling and focusing on the q=3 case, we locate the...

"CLASSIC NMR": an in-situ NMR strategy for mapping the time-evolution of crystallization processes by combined liquid-state and solid-state measurements.

Angewandte Chemie (International ed. in English)

Hughes CE, Williams PA, Harris KD.
PMID: 25044662
Angew Chem Int Ed Engl. 2014 Aug 18;53(34):8939-43. doi: 10.1002/anie.201404266. Epub 2014 Jul 07.

A new in-situ NMR strategy (termed CLASSIC NMR) for mapping the evolution of crystallization processes is reported, involving simultaneous measurement of both liquid-state and solid-state NMR spectra as a function of time. This combined strategy allows complementary information to...

Gap-size and capture-zone distributions in one-dimensional point-island nucleation and growth simulations: asymptotics and models.

Physical review. E, Statistical, nonlinear, and soft matter physics

O'Neill KP, Grinfeld M, Lamb W, Mulheran PA.
PMID: 22463217
Phys Rev E Stat Nonlin Soft Matter Phys. 2012 Feb;85(2):021601. doi: 10.1103/PhysRevE.85.021601. Epub 2012 Feb 02.

The nucleation and growth of point islands during submonolayer deposition on a one-dimensional substrate is simulated for critical island size i=0,1,2,3. The small- and large-size asymptotics for the gap-size and capture-zone distributions (CZDs) are studied. Comparisons to theoretical predictions...

In search of natural quasicrystals.

Reports on progress in physics. Physical Society (Great Britain)

Steinhardt PJ, Bindi L.
PMID: 22878708
Rep Prog Phys. 2012 Sep;75(9):092601. doi: 10.1088/0034-4885/75/9/092601. Epub 2012 Aug 10.

The concept of quasicrystals was first introduced twenty-eight years ago and, since then, over a hundred types have been discovered in the laboratory under precisely controlled physical conditions designed to avoid crystallization. Yet the original theory suggested that quasicrystals...

Calculation of critical nucleation rates by the persistent embryo method: application to quasi hard sphere models.

Soft matter

Ren S, Sun Y, Zhang F, Travesset A, Wang CZ, Ho KM.
PMID: 30398506
Soft Matter. 2018 Nov 21;14(45):9185-9193. doi: 10.1039/c8sm01415a.

We study the crystal nucleation of the Weeks-Chandler-Andersen (WCA) model, using the recently introduced persistent embryo method (PEM). The method provides detailed characterization of pre-critical, critical and post-critical nuclei, as well as nucleation rates that compare favorably with those...

Cocrystal Systems of Pharmaceutical Interest: 2012-2014.

Profiles of drug substances, excipients, and related methodology

Brittain HG.
PMID: 31029224
Profiles Drug Subst Excip Relat Methodol. 2019;44:415-443. doi: 10.1016/bs.podrm.2018.11.004. Epub 2018 Dec 21.

Developments in the field of pharmaceutical cocrystals have been documented in the form of chronological review articles, and the present review encompasses articles published during 2012, 2013, and 2014. Appropriate publications were drawn from the major physical, crystallographic, and...

Crystals and Crystallization in Drug Delivery Design.

Molecular pharmaceutics

Taylor LS, Braun DE, Steed JW.
PMID: 33594892
Mol Pharm. 2021 Mar 01;18(3):751-753. doi: 10.1021/acs.molpharmaceut.0c01157. Epub 2021 Feb 17.

No abstract available.

Universal fluctuations in Kardar-Parisi-Zhang growth on one-dimensional flat substrates.

Physical review. E, Statistical, nonlinear, and soft matter physics

Oliveira TJ, Ferreira SC, Alves SG.
PMID: 22400503
Phys Rev E Stat Nonlin Soft Matter Phys. 2012 Jan;85(1):010601. doi: 10.1103/PhysRevE.85.010601. Epub 2012 Jan 18.

We present a numerical study of the evolution of height distributions (HDs) obtained in interface growth models belonging to the Kardar-Parisi-Zhang (KPZ) universality class. The growth is done on an initially flat substrate. The HDs obtained for all investigated...

Recent advances in drug polymorphs: Aspects of pharmaceutical properties and selective crystallization.

International journal of pharmaceutics

Shi Q, Chen H, Wang Y, Xu J, Liu Z, Zhang C.
PMID: 34843866
Int J Pharm. 2022 Jan 05;611:121320. doi: 10.1016/j.ijpharm.2021.121320. Epub 2021 Nov 27.

Drug polymorphism, an established term used to describe the phenomenon that a drug can exist in different crystalline phases, has attracted great interests in pharmaceutical field in consideration of its important role in affecting the pharmaceutical performance of oral...

Liquid crystals--a new biomedical research area.

Aerospace medicine

Toliver WH, Hoffman PE.
PMID: 5658350
Aerosp Med. 1968 Apr;39(4):428.

No abstract available.

Showing 13 to 24 of 78 entries