Polymer-Stabilized Palladium Nanoparticles for the Chemoselective Transfer Hydrogenation of α,β-Unsaturated Carbonyls: Single-Step Bottom-Up Approach

ChemCatChem ◽  
2014 ◽  
pp. n/a-n/a ◽  
Author(s):  
Sanjit K. Mahato ◽  
Rafique Ul Islam ◽  
Chiranjit Acharya ◽  
Michael J. Witcomb ◽  
Kaushik Mallick
Keyword(s):  
Palladium Nanoparticles ◽  
Single Step ◽  
Transfer Hydrogenation ◽  
Bottom Up ◽  
Unsaturated Carbonyls ◽  
Polymer Stabilized

An efficient ligand free chemoselective transfer hydrogenation of olefinic bonds by palladium nanoparticles in an aqueous reaction medium

RSC Advances ◽  
2014 ◽  
Vol 4 (62) ◽  
pp. 32834-32839 ◽  
Author(s):  
Dattatraya B. Bagal ◽  
Bhalchandra M. Bhanage
Keyword(s):  
Catalytic System ◽  
Palladium Nanoparticles ◽  
Reaction Medium ◽  
Transfer Hydrogenation ◽  
Effective Catalyst ◽  
Ligand Free ◽  
Unsaturated Carbonyls

An efficient ligand free catalytic system was developed for chemoselective 1,4-reduction of various α,β-unsaturated carbonyls by palladium nanoparticles in aqueous reaction medium with excellent chemoselectivity and effective catalyst recyclability.

Hydrodechlorination of Chlorinated Biphenyls in Supercritical CO2Catalyzed by Polymer-Stabilized Palladium Nanoparticles

2007 ◽  
Vol 46 (15) ◽  
pp. 5089-5093 ◽  
Author(s):  
Weisheng Liao ◽  
Yun-Chieh Chen ◽  
Joanna S. Wang ◽  
Hwa Kwang Yak ◽  
Chien M. Wai
Keyword(s):  
Palladium Nanoparticles ◽  
Polymer Stabilized

Chemoselective Transfer Hydrogenation of α,β-Unsaturated Carbonyls Using Palladium Immobilized Ionic Liquid Catalyst

2014 ◽  
Vol 144 (11) ◽  
pp. 1803-1809 ◽  
Author(s):  
Nilesh M. Patil ◽  
Takehiko Sasaki ◽  
Bhalchandra M. Bhanage
Keyword(s):  
Ionic Liquid ◽  
Transfer Hydrogenation ◽  
Unsaturated Carbonyls

Size Specific Activity of Polymer Stabilized Gold Nanoparticles for Transfer Hydrogenation Catalysis

2016 ◽  
Vol 146 (7) ◽  
pp. 1331-1339 ◽  
Author(s):  
Nikeshsinh Chavda ◽  
Abhishek Trivedi ◽  
Jaydev Thakarda ◽  
Yadvendra K. Agrawal ◽  
Prasenjit Maity
Keyword(s):  
Gold Nanoparticles ◽  
Specific Activity ◽  
Transfer Hydrogenation ◽  
Hydrogenation Catalysis ◽  
Polymer Stabilized

Single step bottom-up process to generate solid phospholipid nano-particles

2013 ◽  
Vol 19 (3) ◽  
pp. 326-332 ◽  
Author(s):  
Ulla Brinkmann-Trettenes ◽  
Sabine Barnert ◽  
Annette Bauer-Brandl
Keyword(s):  
Single Step ◽  
Nano Particles ◽  
Bottom Up

Application of Colloidal Palladium Nanoparticles for Labeling in Electron Microscopy

2011 ◽  
Vol 17 (5) ◽  
pp. 810-816 ◽  
Author(s):  
Marie Vancová ◽  
Miroslav Šlouf ◽  
Jan Langhans ◽  
Eva Pavlová ◽  
Jana Nebesářová
Keyword(s):  
Electron Microscopy ◽  
Bovine Serum ◽  
Palladium Nanoparticles ◽  
Secretory Granules ◽  
Protein A ◽  
Pd Nanoparticles ◽  
Single Step ◽  
Covalent Attachment ◽  
Equivalent Diameter ◽  
Functional Protein

AbstractThe application of palladium nanoparticles as electron-dense markers for labeling in both transmission and scanning electron microscopy requires their conjugation to a specific protein. The conjugation protocol described here includes the dihydrolipoic acid (DHLA) capping of Pd nanoparticles (8 nm equivalent diameter) and their subsequent covalent attachment to functional protein molecules such as streptavidin, protein A, or avidin. The single-step reaction was mediated using the cross-linking agent ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC). The final Pd conjugates were fully functional, as demonstrated by labeling of ultrathin resin sections of either bovine serum albumin or secretory granules of the salivary gland isolated from the partially fed female Ixodes ricinus tick. The results of bovine serum labeling were quantified, statistically evaluated, and compared with results obtained using commercially available gold particle conjugates (10 nm diameter). The highest values of labeling density were achieved using both streptavidin-Pd (106 ± 7 particles/μm2) and protein A-Au conjugates (130 ± 18 particles/μm2) compared to a commercial streptavidin-Au (66 ± 16 particles/μm2) and protein A-Pd conjugates (70 ± 11 particles/μm2). The concentrations of both DHLA and EDC, pH during conjugation, and finally thorough washing away of unbound proteins crucially influenced conjugation.

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