A simple, efficient and green approach for the synthesis of palladium nanoparticles using Oxytocin: Application for ligand free Suzuki reaction and total synthesis of aspongpyrazine A

Bendre, Ameya D.; Patil, Viraj P.; Terdale, Santosh S.; Kodam, Kisan M.; Waghmode, Suresh B.

doi:10.1016/j.jorganchem.2019.121093

Cited by 16 publications

(7 citation statements)

References 112 publications

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“…These peaks were absent in the catalyst (@PdCassCat) indicating the complete reduction of Pd 2+ to Pd 0 (NPs). This value is in agreement with literature reports on green synthesis of Pd NPs from PdCl 2 [36,[40][41][42]. Figure 7c shows the UV-visible spectrum of the reduced platinum tetrachloride that was used to prepare a solution for artificial contamination of the plant.…”

Section: Resultssupporting

confidence: 90%

Towards Sustainability Pathway with Bio-Derived Platinum and Palladium Catalyst for Furfural Hydrogenation—A Novel Greener Approach in Catalysis

et al. 2021

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The use of living plants to recover precious metals with potential catalytic activity is still at the infant stage. In this study, selective hydrogenation of furfural to furfuryl alcohol using novel bio-ore catalysts recovered from the end stage of phytomining process is demonstrated. The phytomining process was carried out in the green house by artificially contaminating cassava (Manihot esculenta) plant with 500 mg/L palladium (Pd) and platinum (Pt) solutions for a period of eight weeks. After harvesting, concentrations of metals as high as 78 ± 0.047 and 1276 ± 0.036 µg/g of Pd and Pt, respectively, were detected in the calcinated root of cassava. The produced bio-ore catalysts; @PdCassCat and @PtCassCat were fully characterized with the following techniques: transmission electron microscopy (TEM), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), powder X-ray diffraction (pXRD), N2-sorption, and UV-visible spectroscopy techniques and directly applied as catalysts for hydrogenation of furfural to furfuryl alcohol. The reaction was conducted under an optimized condition (furfural (10 mmol), triethylamine (Et3N) (10 mmol), formic acid (20 mmol), temperature (160 °C), catalyst amount (40 mg)) realizing a yield of 76.5% and 100% furfuryl alcohol using @PdCassCat and @PtCassCat, respectively. The catalytic activities of the @PdCassCat and @PtCassCat were excellent as well as recyclable up to four and five times, respectively.

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Section: Resultssupporting

confidence: 90%

Towards Sustainability Pathway with Bio-Derived Platinum and Palladium Catalyst for Furfural Hydrogenation—A Novel Greener Approach in Catalysis

et al. 2021

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“…However, when chitosan was used as a stabilizing agent together with ascorbic acid, 30 nm flower-shaped Pd NPs were formed (Phan et al, 2019). The use of oxytocin hormone produced 15-20 nm polygonal Pd NPs; in this case, the amino acids present in oxytocin acted as both reducing and stabilizing agents (Bendre et al, 2020).…”

Section: Other Examples Of Biologically-mediated Synthesis Of Pd Npsmentioning

confidence: 99%

Synthesis methods and applications of palladium nanoparticles: A review

Joudeh

Saragliadis

Koster

et al. 2022

Front. Nanotechnol.

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Palladium (Pd) is a key component of many catalysts. Nanoparticles (NPs) offer a larger surface area than bulk materials, and with Pd cost increasing 5-fold in the last 10 years, Pd NPs are in increasing demand. Due to novel or enhanced physicochemical properties that Pd NPs exhibit at the nanoscale, Pd NPs have a wide range of applications not only in chemical catalysis, but also for example in hydrogen sensing and storage, and in medicine in photothermal, antibacterial, and anticancer therapies. Pd NPs, on the industrial scale, are currently synthesized using various chemical and physical methods. The physical methods require energy-intensive processes that include maintaining high temperatures and/or pressure. The chemical methods usually involve harmful solvents, hazardous reducing or stabilizing agents, or produce toxic pollutants and by-products. Lately, more environmentally friendly approaches for the synthesis of Pd NPs have emerged. These new approaches are based on the use of the reducing ability of phytochemicals and other biomolecules to chemically reduce Pd ions and form NPs. In this review, we describe the common physical and chemical methods used for the synthesis of Pd NPs and compare them to the plant- and bacteria-mediated biogenic synthesis methods. As size and shape determine many of the unique properties of Pd NPs on the nanoscale, special emphasis is given to the control of these parameters, clarifying how they impact current and future applications of this exciting nanomaterial.

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“…This disappearance was evidence that the Pd 2+ cation became completely reduced. [32] XPS was used to determine the oxidation state of Pd metal in the Pd NPs/Urtica. The XPS analysis examined the 3d region of the spectrum for Pd.…”

Section: The Characterization Of Pd Nps/urticamentioning

confidence: 99%

“…[19][20][21][22][23][24][25][26][27][28][29][30][31] Recently, the use of Pd NPs as sensors and catalysts has been investigated due to their remarkable properties. [32][33][34][35][36][37] It is of great interest that Pd NPs are obtained by the green synthesis method for catalysis, sensors, and biological applications. It has been found that Pd NPs synthesized by the green synthesis method have outstanding antioxidant properties, but their activity is not yet fully determined.…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of palladium nanoparticles: Preparation, characterization, and investigation of antioxidant, antimicrobial, anticancer, and DNA cleavage activities

Gülbağça

Aygün

Gülcan

et al. 2021

Applied Organom Chemis

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Green synthesis is considered to be one of the most suitable method because it enhances the therapeutic effects of palladium nanoparticles (Pd NPs). In this study, various biological activities such as antimicrobial, anticancer, antioxidant, and DNA cleavage activities of Urtica-mediated green synthesizing Pd NPs were investigated. The synthesized Pd NPs were characterized by using UV-vis, XPS, FT-IR, TEM, and XRD analyses. As a result of the TEM analysis of Pd NPs, the mean particle size was found to be 7.44 ± 1.94 nm, and this result was supported by XRD analysis. The maximum DPPH scavenging activity was determined as 79.6% at 500 mg/L. The newly green synthesized Pd NPs exhibited high antimicrobial activity to gram-negative bacteria than grampositive bacteria. Urtica-mediated green synthesized Pd NPs also showed double strain DNA cleavage activity. For the cytotoxic effects of Pd NPs, the MDA-MB-231 breast cancer cell line, HT-29 colon cancer cell line, Mia Paca-2 human pancreatic cancer cell line, and healthy cell line L929-Murine fibroblast cell line were used. IC 50 values of Pd NPs against MDA-MB-231, HT-29, and MIA PaCa-2 cancer cell lines were calculated as 31.175, 20.383, and 29.335 μg/ml, respectively. No significant cytotoxic effect was observed in the healthy lines L929.

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A simple, efficient and green approach for the synthesis of palladium nanoparticles using Oxytocin: Application for ligand free Suzuki reaction and total synthesis of aspongpyrazine A

Cited by 16 publications

References 112 publications

Towards Sustainability Pathway with Bio-Derived Platinum and Palladium Catalyst for Furfural Hydrogenation—A Novel Greener Approach in Catalysis

Towards Sustainability Pathway with Bio-Derived Platinum and Palladium Catalyst for Furfural Hydrogenation—A Novel Greener Approach in Catalysis

Synthesis methods and applications of palladium nanoparticles: A review

Green synthesis of palladium nanoparticles: Preparation, characterization, and investigation of antioxidant, antimicrobial, anticancer, and DNA cleavage activities

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