Morphological engineering

Z. Berkovitch-Yellin, J. van Mit, L. Addadi, M. Idelson, M. lahav, and L. Leiserowitz, Crystal morphology engineering by tailor-made inhibitors, A new probe to find intermolecular interactions,/. Am. Chem. Soc., 107,1985, 3111-22... 

Berkovitch-Yellin, Z., Van Mil, J., Addadi, L., Idelson, M., Lahav, M., and Leiserowitz, L. Crystal morphology engineering by tailor-made inhibitors a new probe to fine intermolecular interactions. J. Amer. Chem. Soc. 107,3111-3122 (1985). 

Dr. Riew has presented more than 50 technical papers and holds more than 25 patents on emulsion polymers, hydrophilic polymers, synthesis and application of telechelic polymers, and toughened plastics for adhesives and composites. His latest research is in the synthesis, characterization, and performance evaluation of impact modifiers for thermosets and engineering thermoplastics. His research interests include correlating polymer chemistry and physics, morphology, engineering, and static and dynamic thermomechanical properties to the failure mechanisms of toughened plastics. 

N. Adhikari, et al. Device and morphological engineering of organic solar cells for enhanced charge transport and photovoltaic performance. Journal of Photonics for Energy, 2015. 5(1) p. 057207-057207. 

The above studies show that there are many means of regulating aggregate size and shape which is likely to become an essential method of modifying materials by morphological engineering. 

Driouch, H., Sommer, B., and Wittmann, C. (2010) Morphology engineering of Aspergillus niger for improved enzyme production. Biotechnol Bioeng., 105, 1058-1068. 

However, while the above was a rather crude approach to fabricate more porous electrode layers with oxidic support materials, a more elegant way was chosen for home-made ATO by 3D morphology engineering. ATO powder with unique hollow-sphere morphology was synthesized by ultrasonic spray p)irolysis (USP). Depending on precursor concentration and temperature, this process yields a powder composed of individual nano-crystallites forming the shells of hollow spheres with a controlled nano- and microporosity [98]. This offers efficient mass transport and is assumed to prevent the collapse of the electrode structure with time during operation. 

Studies have indicated that the sensing perfonnance of such nanocomposite-based biosensors can be improved by tailoring the precursor concentration, effective surface area, charge/functionaHty, electron-transfer properties, and material—biomolecule interface through morphology engineering. 

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