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2
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0343756182
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Cahn-Hilliard theory with triple-parabolic free energy. I. Nucleation and growth of a stable crystalline phase
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(2000)
J Chem Phys
, vol.112
, pp. 2399-2409
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Gránásy, L.1
Oxtoby, D.W.2
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3
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0342450868
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Cahn-Hilliard theory with triple-parabolic free energy. I. Nucleation and growth in the presence of a metastable crystalline phase
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(2000)
J Chem Phys
, vol.112
, pp. 2410-2419
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Gránásy, L.1
Oxtoby, D.W.2
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6
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0034612274
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Control of protein crystal nucleation around the metastable liquid-liquid phase boundary
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The results of this study, enhancement of the nucleation rate near the critical point and shift of this effect by the use of additives (glycerol or polyethylene glycol), confirm the predictions made based on two different theoretical approaches in Refs. [4,5]
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(2000)
PNAS
, vol.97
, pp. 6277-6281
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Galkin, O.1
Vekilov, P.G.2
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8
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0035931881
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Prediction of absolute crystal nucleation rate in hard-sphere colloids
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For the simple model system of hard sphere colloids it was possible to calculate absolute nucleation rates and to predict the structure of the structure of the critical nucleus. Calculations with hard sphere colloids could be very significant for the crystallization of spherical proteins and could be compared to the experimental studies on crystals from colloidal particles reported in Ref. [37]
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(2001)
Nature
, vol.409
, pp. 1020-1023
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Auer, S.1
Frenkel, D.2
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9
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0032971275
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Molecular aggregation of acetic acid in a carbon tetrachloride solution: A molecular dynamics study with a view to crystal nucleation
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(1999)
Chem Eur J
, vol.5
, pp. 567-576
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Gavezotti, A.1
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10
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0034297748
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Simulations of the nucleation of AgBr from solution
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The authors first check their potentials for bulk AgBr and then calculate cluster structures in vacuum and in water. This is probably the first MD study of the nucleation of an ionic crystal in water. The authors show that it is necessary to model the system in quite detail to obtain physically meaningful results. Surprisingly, in contrast to the results obtained for the vacuum situation, the smaller clusters in water are not ordered, but appear to be rather similar to a liquid-like state
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(2000)
J Chem Phys
, vol.113
, pp. 6276-6284
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Shore, J.D.1
Perchak, D.2
Shnidman, Y.3
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16
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0034602068
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Speciation in solution: Analysis of silicate oligomers using ESI-MS
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29Si NMR spectroscopy, which confirmed that semiquantitative data can be obtained by mass spectrometry. Since mass extended is a very versatile method, this method could be extended to the study of many other prenucleating systems
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(2000)
Angew Chem Int Ed Engl
, vol.39
, pp. 3901-3904
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Bussian, P.1
Sobott, F.2
Brutschy, B.3
Schrader, D.4
Schüth, F.5
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17
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0034249469
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Si-MFI crystallization using a 'dimer' and 'trimer' of TPA studied with small angle X-ray scattering
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It is shown that two particle populations exist in precrystalline zeolite synthesis solutions, with a particle size of 2.8 nm and 10-15 nm. The 2.8 size population was identified to be crucial for the formation of the MFI-type zeolite, independent of the specific template use. This suggests, that these units already contain structural information for the formation of the zeolite
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(2000)
J Phys Chem B
, vol.104
, pp. 7600-7611
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De Moor, P.P.E.A.1
Beelen, T.P.M.2
Van Santen, R.A.3
Beck, L.W.4
Davis, M.E.5
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28
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0034207046
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Solubilization of oil in silicate-surfactant mesostructures
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The use of the flow system allowed addition of a swelling agent at different times during the synthesis of mesostructured silica and analyzing the effect with small angle X-ray diffraction.It was found, that the mesostructures can initially be swollen, but after only a few minutes the silica condensation has proceeded too far, so that the structure becomes too rigid for swelling
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(2000)
Langmuir
, vol.16
, pp. 5831-5836
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Linden, M.1
Agren, P.2
Karlsson, S.3
Bussian, P.4
Amenitsch, H.5
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33
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0034601474
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Quasi-planar nucleus structure in apoferritin crystallization
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The authors succeeded for the first time to directly observe clusters which are assumed to be close to the critical nucleus. Surprisingly, even for a globular protein such as apoferritin, the critical clusters are rather flat arrangements of molecules, resembling in some cases sections from the solid state structure
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(2000)
Nature
, vol.406
, pp. 494-497
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Yau, S.T.1
Vekilov, P.G.2
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34
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0035857393
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Direct observation of nucleus structure and nucleation pathways in apoferritin crystallization
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An extended version of the results presented in Ref. [33], giving more details on the experiments and a wider range of results
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(2001)
J Am Chem Soc
, vol.123
, pp. 1080-1089
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Yau, S.T.1
Vekilov, P.G.2
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35
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4243657702
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Molecular mechanisms of crystallization and defect formation
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In-situ observation of a growing apoferritin crystal with AFM. Formation of growth defects was monitored and it was shown that while kink density is an equilibrium property, point defects are rather caused by the incorporation of impurities. The paper shows how much detailed insight can be obtained in a crystallizing system under fortunate circumstances
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(2000)
Phys Rev Lett
, vol.85
, pp. 353-356
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Yau, S.T.1
Thomas, B.R.2
Vekilov, P.G.3
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36
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0035853528
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Real-space imaging of nucleation and growth in colloidal crystallization
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Formation of a crystal from colloidal latex spheres was monitored in real space and real time. Fundamental understanding of nucleation processes could be obtained from the investigation of such model systems
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(2001)
Science
, vol.292
, pp. 258-262
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Gasser, U.1
Wecks, E.R.2
Schofield, A.3
Pusey, P.N.4
Weitz, D.A.5
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38
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0033955204
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Spontaneous nucleation of monodisperse silver halide particles from homogeneous gelatin solution I: Silver bromide
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(2000)
Colloids Surf A
, vol.164
, pp. 205-215
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Sugimoto, T.1
Shiba, F.2
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40
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0006848476
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Clipping a network into a crystal
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in press. The author describes the analysis of all steps in the evolution of a molecular sieve from the solution state to the final crystal, with NMR spectroscopy being the main technique used for the analysis
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Solid State Sci
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Taulelle, F.1
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42
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0033798318
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Zeolite growth by addition of subcolloidal particles: Modeling and experimental validation
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This is less a nucleation than a zeolite growth study. Experimentally, nucleation and growth were decoupled, since the synthesis was carried out Growth rates were carefully determined, and the growth process was under the addition of the seeds. Growth rates were carefully determined, and the growth process was modelled for the first time on a realistic basis, assuming different possible growth species (monomer addition, 2.8 nm particle addition, addition of larger particles). Comparison of model and experiment clearly favors the addition of the 2.8 nm particles as the dominating growth mode
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(2000)
Chem Mater
, vol.12
, pp. 845-853
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Nikolakis, V.1
Kokkoli, E.2
Tirrell, M.3
Tsapatsis, M.4
Vlachos, D.G.5
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44
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0033548219
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Mechanism of zeolite A nanocrystal growth from colloids at room temperature
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The formation of zeolite A crystals in the core of amorphous gel particles could clearly be demonstrated. In this system amorphous particles are the first product which convert to the crystalline phase
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(1999)
Science
, vol.283
, pp. 958-960
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Mintova, S.1
Olson, N.H.2
Valtchev, V.3
Bein, T.4
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45
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0001711502
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Aggregation mechanism of nanoslabs with zeolite MFI-type structure
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The authors present a model of how a zeolite crystal could form by the aggregation of nanoslabs which they have suggested as the most important species in the formation of MFI type zeolites from clear solution. DLVO calculations suggest a mechanism by which the entropic barrier for the incorporation of large units into a growing zeolite could be overcome
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(1999)
J Phys Chem B
, vol.103
, pp. 11021-11027
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Kirschhock, C.E.A.1
Ravishankar, R.2
Jacobs, P.A.3
Martens, J.A.4
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