Microbeads characteristics

Yamada, Y., Imamura, T., Kakiyama, H., Honda, H., Oi, S., and Fukuda, K., Characteristics of meso-carbon microbeads separated from pitch. Carbon, 1974, 12, 307 319. 

Given the complex process to produce mesophase carbon (graphitized microbeads and fibers), natural graphite can be very competitive in terms of its manufacturing costs [18]. The physical characteristics of certain SLC type materials are extremely close to the characteristics of state-of-the-art MCMB grades. 

Mabuchi, A., Tokumitsu, K., Fujimoto, H., and Kasuh, T., Charge-discharge characteristics of the mesocarbon microbeads heat-treated at different temperatures, J. Electrochem. Soc., 142, 1041, 1995. 

Amsden, B.G. Goosen, M.F.A. An examination of factors affecting the size, distribution and release characteristics of polymer microbeads made using electrostatics. J. Controlled Release 1997, 43 (2-3), 183-196. 

An ion exchanger consists of a solid matrix covalently bound to a charged group. The matrix is made of an organic compound, synthetic resin or polysaccharide, such as Sepharose and Sephadex. A typical matrix is a round microbead. The characteristics of the matrix determine its chromatographic properties, for instance, efficiency, capacity, recovery, chemical stability, mechanical strength and flow proper-... 

Attempts were made to discover the correlation between the crystalline structure of carbonaceous materials and their capability to reversibly intercalate lithium. This correlation has not been definitely established, but still, one can assume as a certain general principle that the optimum materials would contain an amorphous matrix with inclusions of a mesophase nuclei of graphite crystallites. Such materials are various cokes, pyrographite, and products of pyrolysis (carbonization) of various polymers. For practical purposes, the industry mastered some special materials providing high characteristics of negative electrodes in lithium ion batteries. The most popular material is manufactured by the Japanese company of Osaka Gas Co. under the name of mesocarbon microbeads, MCMB it represents the carbonization product of pitchy resins under a certain temperature regime. 

Prepared doped NIR QDs with tunable wavelength and lifetime were wrapped into microbeads. Based on fluorescence lifetime and wavelength characteristics, a novel QD-based barcode was developed.The fluorescence lifetime imaging mode (FLIM) based on QDs with small size (3.5 nm), long lifetime (1 ps), NIR emission (720 nm), and pH sensitivity was also used for in vivo bioimaging and biotracking. ... 

Subban, R.H.Y. and Arof, A.K. (2004) Charge-discharge characteristics of LiCo02/mesocarbon microbeads battery with poly(vinyl chloride)-based composite polymer electrolyte. /. Power Sources, 134,211-221. 

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