Crystallization

Companies Crystallization

Berthold Technologies GmbH & Co KG, Germany

Berthold Technologies has been involved in process measurement technology since 1949. We are an internationally active company with over 300 employees. Berthold Technologies Process Control division offers one of the most comprehensive product lines for non-contact monitoring of industrial process more

Schulz+Partner GmbH, Germany

Since 1995 we deliever plants and components on the field of thermal processes engineering. - Planning and construction of processing systems for thermal liquid separation of temperature-sensitive products - Development of processes in the areas of distillation-crystallisation-rectification-absorpt more

News Crystallization

• Theory of crystal formation complete again

  Exactly how a crystal forms from solution is a problem that has occupied scientists for decades. Researchers at Eindhoven University of Technology (TU/e), together with researchers from Germany and the USA, are now presenting the missing piece. This classical theory of crystal formation, which occur more

• Self-Inflicted Asymmetry

  Asymmetry of molecules can make the difference between a drug and a poison. It is therefore vital to control this parameter in synthesis. Polish researchers found how stirring a reaction mixture in the presence of suitable seeding crystals can strongly affect the products. They report their findings more

• How do your crystals grow?

  Because one of the main bottlenecks in determining the structure of protein molecules is producing good isolated single crystals, improved crystallization techniques would be useful in a wide range of genomics and pharmaceutical research. Research reported in The Journal of Chemical Physics uses fl more

White papers Crystallization

• Automated Dynamic Light Scattering
  

  DLS analysis is a widely applied, non-invasive method for measuring the effective size of molecules in solution. This technique yields valuable information for the characterization of molecules and particles. It facilitates formerly laborious and time consuming measurements, e.g. screening for aggregates or determining optimal crystallization conditions for proteins. The Wyatt Plate Reader is the instrument of choice for any application where molecular size, stability and aggregation are of interest. It reads industry standard microplates with up to 1536 samples automatically and temperature-controlled, if desired. The applications of the technique are wide ranging and include many of the fastest growing areas of research - proteins, biomaterials, liposomes and micelles as well as the established uses for particle sizing and aggregation detection. Conscious of the numerous characterization challenges in the area of drug delivery systems and therapeutic antibodies more

• Absolute Molar Mass Characterisation
  

  Multi-angle light scattering coupled to SEC or other fractionation methods can provide an absolute means for measuring the molar mass, size and distribution of proteins, polymers and particles of all sorts. Wyatt Technology's MALS also enables the elucidation of additional data such as branching, conformation, and eluent behaviour. The same instrumentation also allows observation of molecular interactions in a real-time environment. As MALS is an absolute mass and size measuring technique it is insensitive to the separation mechanism and as such is ideal for both highly variable research applications as well as routine quality assurance of previously characterised samples more

• Measurement of Nano particles and Proteins
  

  Colloid emulsions in their native environment require particle size determination in high concentration since there are concerns about changes in sample morphology upon dilution eg break up of aggregates. For proteins and other samples with very low concentration and for weakly scattering samples high sensitivity is required. New technologies offer both. more

Publications Crystallization

• Effect of miscibility on spherulitic growth rate for double-layer polymer films

  The spherulitic growth rates for the lower polylactide (PLA) layer in poly(ε-caprolactone)/polylactide (PCL/PLA), poly(ethylene oxide)/polylactide (PEO/PLA), and poly(ethylene glycol)/polylactide (PEG/PLA) double-layer films during isothermal crystallization at various temperatures above the melting more

• Efficient panchromatic inorganic–organic heterojunction solar cells with consecutive charge transport tunnels in hole transport material

  A simple solution-processing method was employed to fabricate panchromatic mp-TiO2/CH3NH3PbI3/P3HT–MWNT/Au solar cells. MWNTs in a P3HT–MWNT composite acted as efficient nanostructured charge transport tunnels and induce crystallization of P3HT, hence significantly enhancing the conductivity of the more

• Homochiral crystallization of single-stranded helical coordination polymers: generated by the structure of auxiliary ligands or spontaneous symmetry breaking

  Homochiral crystallizations of single-stranded helical coordination polymers were constructed using V-shaped bridging ligand dicyanamide (1,5-dca-) and chelate auxiliary ligands. The enantiomeric nature of 1 and 2 is directly induced by the chirality of the auxiliary ligands. Whereas, the homochiral more

Websites Crystallization