Green synthesis of β-CD-functionalized monodispersed silver nanoparticles with ehanced catalytic activity

Li, Peng; Li, Sen; Wang, Yu; Zhang, Yu; Han, Guo‐Zhi

doi:10.1016/j.colsurfa.2017.01.034

Cited by 48 publications

(32 citation statements)

References 38 publications

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“…[23]. AgNPs are characterized with variable morphology-size, shape, surface area, purity/coating-and related electrochemical and electromagnetic propertiescharge, zeta potential, redox potential, surface plasmon resonance, and conductivity [24,25].…”

Section: Plant-mediated Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

“…A change or intentional attempt to control these essential characteristics is an essential tool in tailoring AgNPs for specific purposes and might be highly sought on several accounts: (1) increased stability; (2) increased selectivity; (3) increased therapeutic or diagnostic potency; (4) enhanced catalytic activity; (5) reduced toxicity; and (6) reduced reactivity [23,25]. Surface functionalization of AgNPs may be determined by the synthesis pathway chosen (one-step functionalization) or additional treatment after isolation (multi-step functionalization).…”

Section: Plant-mediated Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

“…S-containing molecules (some amino acids, peptides, and proteins) possess the highest affinity to the silver surface because of the strong Ag-S bond and hence are the first to be considered for interaction [17,[26][27][28]. Next, N and O atoms from amide, amino, hydroxyl, phenol, carboxyl, and carbonyl groups are targets for complex formation with Ag+ ions and thus also very likely to be absorbed on the surface [7,15,16,18,[25][26][27][28][29][30]. The latter exist in most primary and secondary metabolites in plants (phenolic acids, polyphenols, flavanoids alkaloids, glycosides, polysaccharides proteins, etc.)…”

Section: Surface Properties Of Silver Nanoparticlesmentioning

confidence: 99%

“…In this regard, the use of pure natural reducers (e.g., the flavonoids quercetin, chrysin, apigenin, luteolin, etc.) might be preferable instead of the total plant extract [25,26,28,35]. However, if the presence of multicomponent and unpredictable adherence on the AgNPs is unwelcome, still the need for a "capping" agent exists.…”

Section: Surface Properties Of Silver Nanoparticlesmentioning

confidence: 99%

See 3 more Smart Citations

Silver Nanoparticles as Multi-Functional Drug Delivery Systems

Ivanova¹,

Gugleva²,

Dobreva³

et al. 2019

Nanomedicines

116

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Nanoparticles can surmount some essential problems of conventional small molecules or biomacromolecules (e.g., DNA, RNA, and protein) used in some diseases by allowing targeted delivery and overcome through biological barriers. Recently, silver nanoparticles have been harnessed as delivery vehicles for therapeutic agents, including antisense oligonucleotides, and other small molecules. Silver is the most profit-oriented precious metal used in the preparation of nanoparticles and nanomaterials because of its antibacterial, antiviral, antifungal, antioxidant and unusually enhanced physicochemical properties compared to the bulk material such as optical, thermal, electrical, and catalytic properties. Small silver nanoparticles offer many advantages as drug carriers, including adjustable size and shape, enhanced stability of surface-bound nucleic acids, high-density surface ligand attachment, transmembrane delivery without harsh transfection agents, protection of the attached therapeutics from degradation, and potential for improved timed/controlled intracellular drug-delivery. Plant-mediated synthesis of silver nanoparticles is gaining interest due to its inexpensiveness, providing a healthier work environment, and protecting human health leading to lessening waste and safer products. The chapter presents the essential physicochemical characteristics, antibacterial, and anticancer properties which silver nanoparticles obtained by plant-mediated methods possess, and their application as drug-delivery systems with a critical view on the possible toxicity on the human body.

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Section: Plant-mediated Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

Section: Plant-mediated Synthesis Of Silver Nanoparticlesmentioning

confidence: 99%

Section: Surface Properties Of Silver Nanoparticlesmentioning

confidence: 99%

Section: Surface Properties Of Silver Nanoparticlesmentioning

confidence: 99%

See 2 more Smart Citations

Silver Nanoparticles as Multi-Functional Drug Delivery Systems

Ivanova¹,

Gugleva²,

Dobreva³

et al. 2019

Nanomedicines

116

View full text Add to dashboard Cite

show abstract

“…Thus, Ag‐based recyclable catalysts reduce the cost of the reaction . Additionally, the catalytic reduction of nitroarene compounds in sustainable method with green solvent like water which has been one of the most important method for decontamination of nitroarene compounds . Sodium borohydride (NaBH 4 ) was a common reductant for hydrogenation.…”

Section: Introductionmentioning

confidence: 99%

Fe₃O₄ – Glutathione stabilized Ag nanoparticles: A new magnetically separable robust and facile catalyst for aqueous phase reduction of nitroarenes

Kumari

Jain

2019

Applied Organom Chemis

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The heterostructured Ag nanoparticles decorated Fe3O4 Glutathione (Fe3O4‐Glu‐Ag) nanoparticles (NPs) were synthesized by sonicating glutathione (Glu) with magnetite and further surface immobilization of silver NPs on it. The ensuing magnetic nano catalyst is well characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), powder X‐ray diffraction (PXRD), thermogravimetric analysis (TGA). The prepared Fe3O4‐Glu‐Ag nanoparticles have proved to be an efficient and recyclable nanocatalyst with low catalyst loading for the reduction of nitroarenes and heteronitroarenes to respective amines in the presence of NaBH4 using water as a green solvent which could be easily separated at the end of a reaction using an external magnet and can be recycled up to 5 runs without any significant loss in catalytic activity. Gram scale study for the reduction of 4‐NP has also being carried out successfully and it has been observed that this method can serve as an efficient protocol for reduction of nitroarenes on industrial level.

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Green synthesis of cobalt and iron incorporated citric acid/β‐cyclodextrin composites: Efficient H₂O₂ scavengers

Pirouzmand

Kojanag

Hosseini‐Yazdi

et al. 2021

Applied Organom Chemis

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Sonochemical procedure was used to synthesize Co/β-cyclodextrin complex.For the first time, Fe/β-cyclodextrin complex was also synthesized in alkaline media. Moreover, β-cyclodextrin was modified by citric acid (CA) and reacted with metal salts under ultrasonic irradiation. The prepared catalysts were characterized by using EDX, UV-vis and FTIR analytical techniques. The highest incorporation of metal into β-cyclodextrin was observed in the citric acid cross linked β-CD. The catalase like activity (peroxide scavenging) of Co/β-CD and Fe/β-CD complexes and composites was evaluated by UV-visible spectrophotometer and their superoxide scavenging capacity were measured using the pyrogallol method. The Co 3 /CA-β-CD complex showed the best catalase mimetic activity (93.2%) even in comparison to catalase enzyme extracted from potato. Therefore, cobalt complexes of citric acid/β-CD are promising candidates for H 2 O 2 scavenging. By contrast Fe 3 /CA-βCD complex had stronger capability to eliminate superoxide anion radicals.

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Green synthesis of β-CD-functionalized monodispersed silver nanoparticles with ehanced catalytic activity

Cited by 48 publications

References 38 publications

Silver Nanoparticles as Multi-Functional Drug Delivery Systems

Silver Nanoparticles as Multi-Functional Drug Delivery Systems

Fe₃O₄ – Glutathione stabilized Ag nanoparticles: A new magnetically separable robust and facile catalyst for aqueous phase reduction of nitroarenes

Green synthesis of cobalt and iron incorporated citric acid/β‐cyclodextrin composites: Efficient H₂O₂ scavengers

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Green synthesis of β-CD-functionalized monodispersed silver nanoparticles with ehanced catalytic activity

Cited by 48 publications

References 38 publications

Silver Nanoparticles as Multi-Functional Drug Delivery Systems

Silver Nanoparticles as Multi-Functional Drug Delivery Systems

Fe3O4 – Glutathione stabilized Ag nanoparticles: A new magnetically separable robust and facile catalyst for aqueous phase reduction of nitroarenes

Green synthesis of cobalt and iron incorporated citric acid/β‐cyclodextrin composites: Efficient H2O2 scavengers

Contact Info

Product

Resources

About

Fe₃O₄ – Glutathione stabilized Ag nanoparticles: A new magnetically separable robust and facile catalyst for aqueous phase reduction of nitroarenes

Green synthesis of cobalt and iron incorporated citric acid/β‐cyclodextrin composites: Efficient H₂O₂ scavengers