Tunable physical properties

Supercritical fluids have many features that render their use attractive in synthetic chemistry and separations. Their tunable physical properties allow reactions to be carried out under a variety of conditions and, in some cases, the selectivities and rates of reactions may be altered. The list of reactions that have been carried out in SCFs and compared with those in conventional solvents is continually growing. 

L. R. Ee, Nanostructured PEG-based hydrogels with tunable physical properties for gene delivery to human mesenchymal stem cells. Biomaterials 33 (2012) 6533-6541. 

Kai L, Yinghui S, Lei C, Chen F, Xiaofeng F, Kaih J, et al. Controlled growth of super-aligned carbon nanombe arrays for spinning continuous unidirectional sheets with tunable physical properties. Nano Lett 2008 8 700-5. 

So what is the main reason that the synthesis of cocrystals has garnered such widespread scientific interest The simple answer is that if we were able to position molecules exactly where we want them to be, and if we can synthesize heteromolecular architectures with specific metrics and stoichiometries, we may find a direct route from molecular structure, via solid-state structure, to tunable physical properties. 

Sol-gel materials are also known as an excellent matrix for embedding other species due to their tunable physical properties (e.g., flexibility and transparency), high chemical stability, and mild operating conditions. Especially, electrochemical deposition of silane-based sol-gel Aims is usually carried out under mild acidic aqueous solutions at pH 3-6. This allows the co-electrodeposition of silane with nanoparticles [47-50], carbon nanotubes [51-53], metals [54-57], polymers [50,58], enzymes [52,53,59-65], bacteria [66,67], and more. Thus, most of the recent research worlcs also focus on the electrochemical deposition of sol-gel-based composite Aims, with the concern of improving the films performance in corrosion protection, electroanalysis, microextraction, and so on and further broadening the films applications. 

Rai, A., Perry, C.C., 2010. PacUe fabrication of nniform silica films with tunable physical properties using sdicatein protein from sponges. Langmuir 26 (6), 4152-4159. 

SiHcone nanomaterials are gaining increasing attention because of their tunable physical properties [1,2] and associated wide range of applications such as drug delivery, ligand or catalyst supports [3, 4]. For this reason the development... 

Li, Y., Yang, C., Khan, M., Liu, S., Hedrick, J.L., Yang, YY, et al. Nanostructured PEG-based hydrogels with tunable physical properties for gene delivery to human mesenchymal stem cells. Biomaterials 33, 6533-6541 (2012)... 

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