Synthesis of Water-Soluble Palladium Nanoparticles Stabilized by Sulfonated N-Heterocyclic Carbenes

2017 ◽  
Vol 23 (54) ◽  
pp. 13435-13444 ◽  
Author(s):  
Juan M. Asensio ◽  
Simon Tricard ◽  
Yannick Coppel ◽  
Román Andrés ◽  
Bruno Chaudret ◽  
...  
Keyword(s):  
Palladium Nanoparticles ◽  
Heterocyclic Carbenes ◽  
Water Soluble

Highly Stable Water-Soluble Platinum Nanoparticles Stabilized by Hydrophilic N-Heterocyclic Carbenes

2014 ◽  
Vol 126 (48) ◽  
pp. 13436-13440 ◽  
Author(s):  
Edwin A. Baquero ◽  
Simon Tricard ◽  
Juan Carlos Flores ◽  
Ernesto de Jesús ◽  
Bruno Chaudret
Keyword(s):  
Platinum Nanoparticles ◽  
Heterocyclic Carbenes ◽  
Water Soluble

scholarly journals Polyethyleneimine-Oleic Acid Micelles-Stabilized Palladium Nanoparticles as Highly Efficient Catalyst to Treat Pollutants with Enhanced Performance

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1890
Author(s):  
Xiang Lai ◽  
Xuan Zhang ◽  
Shukai Li ◽  
Jie Zhang ◽  
Weifeng Lin ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Palladium Nanoparticles ◽  
Human Life ◽  
Catalytic Performance ◽  
Water Soluble ◽  
Noble Metal Nanoparticles ◽  
Hydrodynamic Diameter ◽  
Efficient Catalyst

Water soluble organic molecular pollution endangers human life and health. It becomes necessary to develop highly stable noble metal nanoparticles without aggregation in solution to improve their catalytic performance in treating pollution. Polyethyleneimine (PEI)-based stable micelles have the potential to stabilize noble metal nanoparticles due to the positive charge of PEI. In this study, we synthesized the amphiphilic PEI-oleic acid molecule by acylation reaction. Amphiphilic PEI-oleic acid assembled into stable PEI-oleic acid micelles with a hydrodynamic diameter of about 196 nm and a zeta potential of about 34 mV. The PEI-oleic acid micelles-stabilized palladium nanoparticles (PO-PdNPsn) were prepared by the reduction of sodium tetrachloropalladate using NaBH4 and the palladium nanoparticles (PdNPs) were anchored in the hydrophilic layer of the micelles. The prepared PO-PdNPsn had a small size for PdNPs and good stability in solution. Noteworthily, PO-PdNPs150 had the highest catalytic activity in reducing 4-nitrophenol (4-NP) (Knor = 18.53 s−1mM−1) and oxidizing morin (Knor = 143.57 s−1M−1) in aqueous solution than other previous catalysts. The enhanced property was attributed to the improving the stability of PdNPs by PEI-oleic acid micelles. The method described in this report has great potential to prepare many kinds of stable noble metal nanoparticles for treating aqueous pollution.

scholarly journals Peptide-coated palladium nanoparticle for highly sensitive bioanalysis of trypsin in human urine samples

2018 ◽  
Vol 8 ◽  
pp. 184798041882039 ◽  
Author(s):  
Guohua Zhou ◽  
Huimin Jiang ◽  
Yanfang Zhou ◽  
Peilian Liu ◽  
Yongmei Jia ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Fluorescence Resonance Energy Transfer ◽  
Palladium Nanoparticles ◽  
Limit Of Detection ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Water Soluble ◽  
Urine Samples ◽  
Fluorescence Resonance ◽  
Functional Peptide

In recent years, palladium nanoparticles have been proved as energy acceptor candidates in fluorescence resonance energy transfer-based sensors for analytical and biological purposes. In this article, peptide-coated palladium nanoparticles were prepared using a simple one-step preparation method. The peptide Cys-Ala-Leu-Asn-Asn was used as a ligand, whereas hydrazine hydrate was used as a reductant to obtain water-soluble and stable peptide-coated palladium nanoparticles. Additionally, peptide-coated palladium nanoparticles were functionalized by adding the functional peptide CALNNGGARK(FITC) in combination with Cys-Ala-Leu-Asn-Asn during the preparation process. The prepared functionalized peptide-coated palladium nanoparticles were used for trypsin detection based on the fluorescence resonance energy transfer approach. Under optimized conditions, the proposed method can be used for the detection of trypsin concentrations in the range of approximately 0.2–8-μg/mL with a limit of detection of 0.18-μg/mL. The functionalized peptide-coated palladium nanoparticles were successfully applied for the detection of trypsin in urine samples. Our findings also indicated that peptide-coated palladium nanoparticles can highly quench fluorophores and are suitable for the manufacture of off–on state fluorescent sensors. We anticipated that the peptide-coated palladium nanoparticles proposed in this article will have great potential for the detection of trypsin in urine and other analytical, biological, and clinical applications.

Sonogashira reactions catalyzed by water-soluble, β-cyclodextrin-capped palladium nanoparticles

2007 ◽  
Vol 116 (3-4) ◽  
pp. 94-100 ◽  
Author(s):  
Cuihua Xue ◽  
Kumaranand Palaniappan ◽  
Ganesh Arumugam ◽  
Stephen A. Hackney ◽  
Jian Liu ◽  
...  
Keyword(s):  
Palladium Nanoparticles ◽  
Water Soluble ◽  
Sonogashira Reactions

Water-Soluble Palladium Nanoparticles: Click Synthesis and Applications as a Recyclable Catalyst in Suzuki Cross-Couplings in Aqueous Media

2010 ◽  
Vol 2010 (26) ◽  
pp. 5090-5099 ◽  
Author(s):  
Nereida Mejías ◽  
Roser Pleixats ◽  
Alexandr Shafir ◽  
Mercedes Medio-Simón ◽  
Gregorio Asensio
Keyword(s):  
Palladium Nanoparticles ◽  
Aqueous Media ◽  
Recyclable Catalyst ◽  
Water Soluble ◽  
Click Synthesis

Knight Shift in 13 C NMR Resonances Confirms the Coordination of N‐Heterocyclic Carbene Ligands to Water‐Soluble Palladium Nanoparticles

2016 ◽  
Vol 56 (3) ◽  
pp. 865-869 ◽  
Author(s):  
Juan M. Asensio ◽  
Simon Tricard ◽  
Yannick Coppel ◽  
Román Andrés ◽  
Bruno Chaudret ◽  
...  
Keyword(s):  
Palladium Nanoparticles ◽  
Knight Shift ◽  
Water Soluble ◽  
Carbene Ligands ◽  
C Nmr

scholarly journals Access to cationic polyhedral carboranes via dynamic cage surgery with N-heterocyclic carbenes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jan Vrána ◽  
Josef Holub ◽  
Maksim A. Samsonov ◽  
Zdeňka Růžičková ◽  
Josef Cvačka ◽  
...  
Keyword(s):  
Phosphorus Atom ◽  
Heterocyclic Carbenes ◽  
Phosphorus Trichloride ◽  
Water Soluble ◽  
Anionic Species

AbstractPolyhedral boranes and heteroboranes appear almost exclusively as neutral or anionic species, while the cationic ones are protonated at exoskeletal heteroatoms or they are instable. Here we report the reactivity of 10-vertex closo-dicarbadecaboranes with one or two equivalents of N-heterocyclic carbene to 10-vertex nido mono- and/or bis-carbene adducts, respectively. These complexes easily undergo a reaction with HCl to give cages of stable and water soluble 10-vertex nido-type cations with protonation in the form of a BHB bridge or 10-vertex closo-type cations containing one carbene ligand when originating from closo-1,10-dicarbadecaborane. The reaction of a 10-vertex nido mono-carbene adduct with phosphorus trichloride gives nido-11-vertex 2-phospha-7,8-dicarbaundecaborane, which undergoes an oxidation of the phosphorus atom to P = O, while the product of a bis-carbene adduct reaction is best described as a distorted C2B6H8 fragment bridged by the (BH)2PCl2+ moiety.

Water-soluble palladium nanoparticles as an active catalyst for highly selective hydrogenation of nitrobenzene to aniline

2017 ◽  
Vol 44 (1) ◽  
pp. 13-26 ◽  
Author(s):  
Changru Huang ◽  
Xiaoyan Wang ◽  
Fengli Yu ◽  
Bing Yuan ◽  
Congxia Xie ◽  
...  
Keyword(s):  
Selective Hydrogenation ◽  
Palladium Nanoparticles ◽  
Active Catalyst ◽  
Water Soluble

Water-Soluble, 1,3,5-Triaza-7-phosphaadamantane-Stabilized Palladium Nanoparticles and their Application in Biphasic Catalytic Hydrogenations at Room Temperature

ChemCatChem ◽  
2013 ◽  
Vol 5 (8) ◽  
pp. 2517-2526 ◽  
Author(s):  
Maria Caporali ◽  
Antonella Guerriero ◽  
Andrea Ienco ◽  
Stefano Caporali ◽  
Maurizio Peruzzini ◽  
...  
Keyword(s):  
Palladium Nanoparticles ◽  
Room Temperature ◽  
Water Soluble
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