نتایج جستجو برای: spherical crystallisation
تعداد نتایج: 49291 فیلتر نتایج به سال:
Molecular shape is important in both crystallisation and supramolecular assembly, yet its role is not completely understood. We present a computationally efficient scheme to describe and classify the molecular shapes in crystals. The method involves rotation invariant description of Hirshfeld surfaces in terms of of spherical harmonic functions. Hirshfeld surfaces represent the boundaries of a ...
A morphological population balance model is applied to crystallisation of hen-egg white lysozyme (HEWL) for investigating the effects of seed loading and cooling rate on supersaturation, crystal size and shape distribution. Growth rates of individual faces and final crystal size and shape distribution were examined under varied seeding and cooling conditions. It was found that for growth only c...
Ice clouds in the Earth's upper troposphere can form via homogeneous nucleation of ice in aqueous droplets. In this study we investigate the crystallisation, or lack of crystallisation, of the solute phase and ice in aqueous (NH(4))(3)H(SO(4))(2)/H(2)O and NH(4)HSO(4)/H(2)O droplets. This is done using in situ X-ray diffraction of emulsified solution droplets mounted on a cold stage. From the d...
Waste derived glass ceramic composites prepared by low temperature sintering/sinter-crystallisation I. Ponsot, R. Detsch, A. R. Boccaccini & E. Bernardo To cite this article: I. Ponsot, R. Detsch, A. R. Boccaccini & E. Bernardo (2015) Waste derived glass ceramic composites prepared by low temperature sintering/sinter-crystallisation, Advances in Applied Ceramics, 114:sup1, S17-S25, DOI: 10.1179...
Andrew S. Dunn1,3, Vaclav Svoboda1,4, Jan Sefcik2,4, Joop H. ter Horst2,3 1 Doctoral Training Centre in Continuous Manufacture and Crystallisation 2EPSRC Centre for Innovative Manufacturing in Continuous Manufacture and Crystallisation 3Strathclyde Institute of Pharmacy and Biomedical Sciences, Technology and Innovation Centre, University of Strathclyde, 99 George Street, Glasgow, G1 1RD, UK 4D...
Systematic nonlinear optimisation is a valuable tool towards evaluating the performance of conceptual Continuous Pharmaceutical Manufacturing (CPM) flowsheets. This study considers total cost minimisation of multiple plausible design choices and eight candidate antisolvents for the continuous recovery of artemisinin (a potent antimalarial Active Pharmaceutical Ingredient/API) via continuous cry...
A theoretical procedure has been developed with the aim of obtaining an accurate and rapid estimation of the degree of crystallisation in jarosite glasses by measuring the densities of the parent glass and, after the thermal treatment, of the glass-ceramic. Compositions were prepared by mixing jarosite waste with granite scraps and glass cullet, yielding three dierent glass-batchs, melted at 1...
High-quality protein crystals of suitable size are an important prerequisite for applying X-ray crystallography to determine the 3-dimensional structure of proteins. However, it is often difficult to obtain protein crystals of appropriate size and quality because nucleation and growth processes can be unsuccessful. Here, we show that by adsorbing proteins onto porous polystyrene-divinylbenzene ...
Hybrid lead halide perovskites have emerged as high-performance photovoltaic materials with their extraordinary optoelectronic properties. In particular, the remarkable device efficiency is strongly influenced by the perovskite crystallinity and the film morphology. Here, we investigate the perovskites crystallisation kinetics and growth mechanism in real time from liquid precursor continually ...
Protein crystallisation is of great importance within structural proteomic projects where considerable time and effort is spent trying to obtain high resolution structural information from the X-ray diffraction of protein crystals. The crystallisation process is largely empirical due to a lack of understanding of crystallisation kinetics and it is often very challenging to obtain crystals of su...
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