Cover Picture: Yoctowell Cavities on Magnetic Silica Nanoparticles for pH Stimuli-Responsive Controlled Release of Drug Molecules (Chem. Eur. J. 18/2014)

2014 ◽  
Vol 20 (18) ◽  
pp. 5169-5169
Author(s):  
Sheshanath V. Bhosale
Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1632
Author(s):  
João M. M. Rodrigues ◽  
Andreia S. F. Farinha ◽  
Zhi Lin ◽  
José A. S. Cavaleiro ◽  
Augusto C. Tome ◽  
...  

Anionic species are one of the most common pollutants in residual and freshwaters. The presence of anthropogenic anions in water drastically increases the toxicity to living beings. Here, we report the preparation of a new optical active material based on tri(tosylamino)phthalocyanines grafted to ferromagnetic silica nanoparticles for anion detection and removal. The new unsymmetrical phthalocyanines (Pcs) proved to be excellent chemosensors for several anions (AcO−, Br−, Cl−, CN−, F−, H2PO4−, HSO4−, NO2−, NO3−, and OH−) in dimethyl sulfoxide (DMSO). Furthermore, the Pcs were grafted onto magnetic nanoparticles. The resulting novel hybrid material showed selectivity and sensitivity towards CN−, F−, and OH− anions in DMSO with limit of detection (LoD) of ≈4.0 µM. In water, the new hybrid chemosensor demonstrated selectivity and sensitivity for CN− and OH− anions with LoD of ≈0.2 µM. The new hybrids are easily recovered using a magnet, allowing recyclability and reusability, after acidic treatment, without losing the sensing proprieties.


Nanoscale ◽  
2016 ◽  
Vol 8 (5) ◽  
pp. 3019-3030 ◽  
Author(s):  
Diego Estupiñán ◽  
Markus B. Bannwarth ◽  
Steven E. Mylon ◽  
Katharina Landfester ◽  
Rafael Muñoz-Espí ◽  
...  

Multiple functionalization of magnetic silica particles allows simultaneously their bio-orthogonal modification and less unspecific protein adsorption to occur.


Langmuir ◽  
2018 ◽  
Vol 34 (8) ◽  
pp. 2674-2684 ◽  
Author(s):  
Yue Wang ◽  
Hari Katepalli ◽  
Tonghan Gu ◽  
T. Alan Hatton ◽  
Yundong Wang

2009 ◽  
Vol 121 (7) ◽  
pp. 1265-1269 ◽  
Author(s):  
Hye Young Lee ◽  
Doo Ri Bae ◽  
Ji Chan Park ◽  
Hyunjoon Song ◽  
Won Seok Han ◽  
...  

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