Pentafluorophenyl Ester-Functionalized Nanoparticles as a Versatile Platform for Selective and Covalent Inter-nanoparticle Coupling

2016 ◽  
Vol 8 (3) ◽  
pp. 2393-2398 ◽  
Author(s):  
Jimmy Lawrence ◽  
Todd Emrick
Keyword(s):  
Functionalized Nanoparticles ◽  
Pentafluorophenyl Ester

Application of Silica Nanoparticles in the Determination of Herbicides in Environmental Water Samples Using Liquid Chromatography-Mass Spectroscopy

2020 ◽  
Vol 16 (5) ◽  
pp. 748-756
Author(s):  
Mir Waqas Alam ◽  
Tentu Nageswara Rao ◽  
Yarasani Prashanthi ◽  
Vourse Sridhar ◽  
Adil Alshoaibi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Liquid Chromatography ◽  
Silica Nanoparticles ◽  
Solid Phase ◽  
Silica Nanoparticle ◽  
Environmental Water ◽  
Phase Extraction ◽  
Functionalized Nanoparticles ◽  
Supporting Material

Background: Herbicides are very beneficial in the crop yield with the aid of controlling weeds within the agriculture, but several herbicides are chronic in soil. Objective: In this study, nanoparticles and the packages of synthesized novel silica nanoparticles were studied for the preconcentration of herbicides. Methods: These nanoparticles prepared by the Stöber mechanism were purified and functionalized. Nanoparticles thus prepared successfully were used as supporting material for the preconcentration of residues of herbicides in the water. Results: Preconcentration was achieved by preparing the silica-based solid-phase-extraction cartridges. Nanoparticles used for this purpose were within the range of 50-250 nm. An SPE cartridge was prepared by packing 200 mg of silica nanoparticle in the empty cartridge of diameter 5.5 cm and length 0.6 cm in between PTFE frits. Aqueous solutions of 0.1 μg/ml of herbicides were prepared separately, and 10 ml of the solution was passed through the cartridge at the rate of 0.2 ml/min. After passing 10 ml volume of the aqueous solution, residues adsorbed on the cartridge were eluted using 2 ml of acetonitrile. The eluate was injected to determine the herbicide residue adsorbed on the SPE cartridge. Conclusion: In the study, it was found that greater than 90% of the herbicide residues were trapped on silica nanoparticle-based SPE cartridge. An analytical method was developed for the simultaneous determination of these herbicides. The residues were quantified by LC-MS/MS with ESI mode.

Functionalized Nanoparticles for Characterization Through TEM Images: Comparison Between Two Innovative Techniques

2021 ◽  
Vol 24 (4) ◽  
pp. 29-34
Author(s):  
Aime Lay-Ekuakille ◽  
Moise Avoci Ugwiri ◽  
Marco Di Paola ◽  
Francesco Conversano ◽  
Sergio Casciaro ◽  
...  
Keyword(s):  
Functionalized Nanoparticles ◽  
Innovative Techniques

scholarly journals Cross‐Link‐Functionalized Nanoparticles for Rapid Excretion in Nanotheranostic Applications

2020 ◽  
Vol 132 (46) ◽  
pp. 20733-20741
Author(s):  
Zhuoran Ma ◽  
Feifei Wang ◽  
Yeteng Zhong ◽  
Felix Salazar ◽  
Jiachen Li ◽  
...  
Keyword(s):  
Cross Link ◽  
Functionalized Nanoparticles

scholarly journals Self-assembly of multiferroic core-shell composites using DNA functionalized nanoparticles

2018 ◽  
Vol 460 ◽  
pp. 424-431 ◽  
Author(s):  
Atanu Banerjee ◽  
Jitao Zhang ◽  
Peng Zhou ◽  
Koushik Tuppil ◽  
Gollapudi Sreenivasulu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Core Shell ◽  
Functionalized Nanoparticles
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