Sunlight-assisted route to antimicrobial plasmonic aminoclay catalysts

Ravula, Sudhir; Essner, Jeremy B.; La, Wendy A.; Polo‐Parada, Luis; Kargupta, Roli; Hull, Garret J; Sengupta, Shramik; Baker, Gary A.

doi:10.1039/c4nr04544k

Cited by 26 publications

(34 citation statements)

References 31 publications

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“…11i) as 1.2 × 10 −2 s −1 . When compared with the literature, 16 the present system exhibited higher value. This is due to the chain ending of Ag nanoparticle, which is chemically bound with the thiol group of the copolymer chains.…”

Section: Catalytic Reduction Studysupporting

confidence: 44%

“…The apparent rate constant (k app ) was determined by plotting time versus ln(C/C 0 ) (Fig. 11i) 16 the present system exhibited higher value. This is due to the chain ending of Ag nanoparticle, which is chemically bound with the thiol group of the copolymer chains.…”

Section: Catalytic Reduction Studymentioning

confidence: 99%

“…Ten milliliters of MAA was syringed into the RBF at 45°C under nitrogen atmosphere with mild stirring condition. 16 The stirring continued for 2 h. At the end of the reaction, the contents were filtered and dried overnight at 45°C (Scheme 1). A green color powder was collected, weighed, and stored in a zipper lock cover.…”

Section: Synthesis Of Maa-capped Ag Nanoparticlementioning

confidence: 99%

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Synthesis, Characterization, Catalytic Reduction, and Splinting Activity of Poly(ε‐caprolactone–co–morpholine)/Ag Nanocomposite

Meenarathi¹,

Siva²,

Jeyapriya³

et al. 2016

Adv Polym Technol

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ABSTRACT:The ring-opening polymerization of ɛ-caprolactone and morpholine mixture was carried out at 160°C for 24 h under nitrogen atmosphere at two different experimental conditions, mercaptoaceticacid (MAA) and Ag-MAA initiator variation. The resultants were characterized by Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis, gel permeation chromatography, and high-resolution transmission electron microscopy techniques. The tensile strength of the copolymer nanocomposites was tested. The catalytic reduction behavior (reduction of nitrophenol into amino phenol), splinting activity, and drug delivery activity of the copolymer nanocomposite were tested. The obtained results were analyzed and critically compared. C

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Section: Catalytic Reduction Studysupporting

confidence: 44%

Section: Catalytic Reduction Studymentioning

confidence: 99%

Section: Synthesis Of Maa-capped Ag Nanoparticlementioning

confidence: 99%

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Synthesis, Characterization, Catalytic Reduction, and Splinting Activity of Poly(ε‐caprolactone–co–morpholine)/Ag Nanocomposite

Meenarathi¹,

Siva²,

Jeyapriya³

et al. 2016

Adv Polym Technol

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“…reported about the catalytic effect of Ag reduced graphene amide nanoparticle towards the reduction of NP. The catalytic activity of Ag nanoparticle toward the reduction of NP was proved by different research teams . The nanosized Ag has an ability to catalyze the reduction of 4‐nitrophenol to 4‐aminophenol.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization, catalytic and splinting activity of nano Ag end capped l‐glutathione bridged amphiphilic diblock copolymer

Jeyapriya¹,

Meenarathi²,

Anbarasan³

2016

J of Applied Polymer Sci

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l‐glutathione, a naturally occurring environmental friendly amino acid, was used as an initiator towards the ring opening polymerization (ROP) of ɛ‐caprolactone (CL) followed by the ROP of tetrahydrofuran (THF). The thiol group of l‐glutathione reduces Ag+ ions and chemically bound to the surface of Ag nanoparticles. The ROP of CL was carried out at 160 °C under nitrogen atmosphere in the presence of stannous octoate(SO) as catalyst whereas the ROP of THF was carried out at 45 °C for 24 h in the presence of phthalic anhydride (PAH) as a comonomer. The synthesized homo, di and nano Ag end capped diblock copolymers were characterized by FTIR, DSC, TGA, FESEM, high resolution transmission electron microscope (HRTEM), EDAX, GPC, nuclear magnetic resonance (NMR), Fluorescence and CD. Further the application of diblock copolymer was tested for splinting activity. The catalytic reduction of 4‐nitrophenol (NP) in the presence of nano Ag end capped diblock copolymer was carried out with the assistance of sodium borohydride as a reducing agent and the apparent rate constant (kapp) was determined and compared with the literature values. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43804.

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“…Biomolecule wrapped AC was reported by Patil et al (2004). The Ag-Au bimetallic nanoparticle decorated AC catalyzed reduction of nitrophenol was reported in the year 2015 (Ravula et al 2015). Reductive decontamination of nitrophenol was done with the aid of Mg-AC .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and catalytic activity of nanosized Ni complexed aminoclay

Ranchani

Parthasarathy

Devi³

et al. 2017

Appl Nanosci

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A novel Ni complexed aminoclay (AC) catalyst was prepared by complexation method followed by reduction reaction. Various analytical techniques such as FTIR spectroscopy, UV-visible spectroscopy, DSC, TGA, SEM, HRTEM, EDX, XPS and WCA measurement are used to characterize the synthesized material. The AC-Ni catalyst system exhibited improved thermal stability and fiber-like morphology. The XPS results declared the formation of Ni nanoparticles. Thus, synthesized catalyst was tested towards the Schiff base formation reaction between various bio-medical polymers and aniline under air atmosphere at 85°C for 24 h. The catalytic activity of the catalyst was studied by varying the % weight loading of the AC-Ni system towards the Schiff base formation. The Schiff base formation was quantitatively calculated by the 1 H-NMR spectroscopy. While increasing the % weight loading of the AC-Ni catalyst, the % yield of Schiff base was also increased. The k app and Ti values were determined for the reduction of indole and a-terpineol in the presence of AC-Ni catalyst system. The experimental results were compared with the literature report.

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Sunlight-assisted route to antimicrobial plasmonic aminoclay catalysts

Cited by 26 publications

References 31 publications

Synthesis, Characterization, Catalytic Reduction, and Splinting Activity of Poly(ε‐caprolactone–co–morpholine)/Ag Nanocomposite

Synthesis, Characterization, Catalytic Reduction, and Splinting Activity of Poly(ε‐caprolactone–co–morpholine)/Ag Nanocomposite

Synthesis, characterization, catalytic and splinting activity of nano Ag end capped l‐glutathione bridged amphiphilic diblock copolymer

Synthesis, characterization and catalytic activity of nanosized Ni complexed aminoclay

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