Chen K., Adam C., Sojic N., Schmittel M.,
RSC Adv. 2013, 33, 24140–24145.

For remote Hg2+ detection, an array of nanotips was covalently functionalised using a versatile photochemical approach. After chemical etching of an optical fiber bundle to generate the nanotip array, a protected n-propyl amine was grafted onto the tip surface by silanisation and thereafter photodeprotected by irradiation at 365 nm. The new rhodamine-based probe 9 developed for detection of Hg2+ was linked to the liberated amino group using the HOBt/DCC protocol. The optical fiber bundles functionalised with 9 exhibited a high selectivity toward Hg2+in situ, in full analogy to its precursor 4 in solution. Titration of the functionalised optical fiber bundles using a remote detection mode showed a detection range from 10−5 to 5 × 10−3 M for mercury ions in aqueous medium.

 

RSCAdv2013 p24140 TOC

Thumbnail Schmitt V., Ravaine V.,Curr. Opin. Colloid Interface Sci. 2013, 18, 532–541. Review Colloidal gel particles called microgels have shown their ability to adsorb at an oil–water interface and...
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Thumbnail Chen K., Adam C., Sojic N., Schmittel M.,RSC Adv. 2013, 33, 24140–24145. For remote Hg2+ detection, an array of nanotips was covalently functionalised using a versatile photochemical approach. After...
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