Surface modification nanocrystals

Tsuruoka, T., Takahashi, R., Nakamura, T., Fuji, M., Akamatsu, K., Nawafune, H., Highly luminescent mono- and multilayers of immobilized CdTe nanocrystals controlling optical properties through post chemical surface modification. Chem. Commun. 2008, 1641-1643. 

Poloxamers and other polymeric materials such as albumin may coat the micro- or nano particle, alter their surface characteristics and reduce their phagocytosis and opsonization by the reticuloendothelial system following IV injection. Such surface modifications often result in prolongation in the circulation time of intravenously injected colloidal dispersions.Poloxamers also have been used to stabilize suspension such as NanoCrystal . ... 

Photocatalytic reduction of carbon dioxide on TiO-, nanocrystals embedded in Si02 matrices (Q-Ti02/Si0,) and bulk CdS particles with and without surface modifieation by several thiol compounds was investigated in various kinds of solvents. Formate and carbon monoxide were obtained as the major reduction products and the ratio of the former to the latter was increased with an increase in the dielectric constant of the solvents used for the use of Q-Ti02/Si0, and bare CdS particles as photocatalysts. The surface modification of CdS particles with thiol compounds was effective in enhancing the ratio of formate to carbon monoxide. The observed selectivity of CO2 reduction products was explained well in terms of the stabilization of reaction intermediates on the photocatalyst surface. 

The effect of surface modification of nanocrystal 7702 with specific chelating agents such as arginine, lauryl sulfate and salicylic acid was investigated by the photocatalytic degradation of nitrobenzene (NB). The results of the study are shown in Table 6 [362],... 

Eyley S, Thielemans W (2014) Surface modification of cellulose nanocrystals. Nanoscale... 

This chapter focuses on the use of nanotechnology in the development of cellulose and chitin nanoctystals and their novel biomedical applications. It consists of four main sections. The first section is a brief introduction. The second section focuses on cellulose nanocrystals (CNCs) and their preparation procedure, physical properties, and surface modifications. Cationic modification of CNCs is also presented to produce positively charged CNCs. Various bioapplications of CNCs in bionanocomposites, drug delivery, and biosensors are discussed as well. The third section focuses on chitin nanoctystals (CHNCs). Except for a short introduction on chitin and its structure, the methods of isolation and characterization of chitin are discussed and the surface modifications and properties of CHNCs are summarized. The applications of CHNCs as reinforcing fillers in nanocomposites and several biomedical applications are discussed. The fourth section is a summary and perspective highlighting the future directions on the application of these natural nanoctystals in various key industries related to biomedicine. 

Gao MY, Kirstein S, Mohwald H, Rogach AL, Komowski A, Eychmuller A, Weller H (1998) Strongly photoluminescent CdTe nanocrystals by proper surface modification. J Phys Chem B 102 8360... 

Isobe T (2006) Low-temperature wet chemical syntheses of nanocrystal phosphors with surface modification and their characterization. Phys Stat Sol 203 2686... 

M. Epifani, E. Comini, R. Diaz, C. Force, P. Sicdiano, G. Fagha, TiOz colloidal nanocrystals surface modification by V2O5 species investigation by NMR and... 

Thielemans, W., Belgacem, M. N., Dufresne, A. (2006). Starch nanocrystals with large chain surface modifications., (10), 4804 810. 

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