Spectroscopic characterization of Au3+ biosorption by waste biomass of Saccharomyces cerevisiae

Lin, Ziyu; Wu, Jiming; Xue, Rongjian; Yang, Yong

doi:10.1016/j.saa.2004.03.029

Cited by 203 publications

(114 citation statements)

References 16 publications

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“…It is concluded from earlier report NH/C-O groups bind with metals (lead) nanoparticles [39]. Amino acid residues and peptides of proteins have the stronger ability to bind metal and very high affinity to bind with metals.…”

Section: Ft-ir Analyses Of Pb Nanorodsmentioning

confidence: 82%

Konjac Biomolecules Assisted–Rod/Spherical Shaped Lead Nano Powder Synthesized by Electrolytic Process and Its Characterization Studies

Thirugnanasambandan¹,

Alagar²

2013

Nano BioMed ENG

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Synthesis and structural characterization of Pb nanoparticles by electrolysis using a bioactive compound-konjac aqueous extract is the main aim of this study. This method is a unique, novel, low cost and double-step procedure with good reproducibility and has not been used for nanoparticles preparation so far. Konjac extract has been added to prevent the oxidation of Pb nanoparticles. Also the synthesized nanoparticles have been dried in open air to observe their stability. Various types of characterization tools have been utilized to study characters of the end product. Anti-bacterial Studies has also been done. After completion of synthesis process that we have made an attempt to change the shape of the synthesized nanoparticles by the influence of sunbeams and to find the effects of the sunlight on nanomaterials.Keywords: XRD, Lead nanopowder, Konjac, Electrolysis, Debye-Scherer Citation: T. Theivasanthi and M. Alagar. Konjac biomolecules assisted-rod/spherical shaped lead nano powder synthesized by electrolytic process and its characterization Studies.

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Section: Ft-ir Analyses Of Pb Nanorodsmentioning

confidence: 82%

Konjac Biomolecules Assisted–Rod/Spherical Shaped Lead Nano Powder Synthesized by Electrolytic Process and Its Characterization Studies

Thirugnanasambandan¹,

Alagar²

2013

Nano BioMed ENG

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“…Similarly a band at 1637 cm -1 has been assigned to the amide I band of the proteins released by the Fraxinus leaves. It has been reported by (Lin et al 2005) that the hydroxyl group of alcohols and carbonyl groups from the amino acid residues and peptides of proteins have a strong affinity to bind metals, so that they can act as encapsulating agent and thus protect the nanoparticles from agglomeration. A band at 1376 cm -1 corresponds to the geminal methyl and a weak band at 1078 cm -1 has been assigned to ether (C-O-C) linkage.…”

Section: Ft-ir Analysismentioning

confidence: 99%

Microwave-assisted green synthesis of silver nanoparticles from Fraxinus excelsior leaf extract and its antioxidant assay

et al. 2015

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The biosynthesis of nanoparticles has been proposed as a cost effective and environmentally benevolent alternative to chemical and physical methods. In the present study, microwave assisted synthesis of silver nanoparticles (AgNPs) has been demonstrated using leaf extract of Fraxinus excelsior reducing aqueous AgNO 3 solution. The synthesized nanoparticles have been characterized on the basis of fourier transform infrared spectroscopy (FT-IR), UV-Vis spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive X-ray (EDX) analysis. The presence of a characteristic surface plasmon resonance (SPR) absorption band at 425 nm in UV-Vis reveals the reduction of silver metal ions into silver nanoparticles. FT-IR analysis was carried out to probe the possible functional group involved in the synthesis of AgNPs. Further leaf extracts and AgNPs were evaluated for antiradical scavenging activity by 1,1-diphenyl-2-picryl-hydrazyl (DPPH) assay.

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“…The absorbance peaks at 1455.6 cm −1 , are due to N-H bending (cis form), -CH 2 scissoring or -CH 3 antisymmetrical bending vibration and O-H deformation. The other typical amide band (amide III) located of amine groups, P-O-C links of the organic phosphated groups and P-O vibration of the (C-PO 3 −2 ) moiety [22,[24][25][26][27][28][29][30][49][50][51]. After the contact with lead solution, a significant shift of adsorption peaks in the FT-IR spectra can be seen for the lead-laden biomass samples (Fig.…”

Section: Ir Analysismentioning

confidence: 99%

Characteristic features of Bacillus cereus cell surfaces with biosorption of Pb(II) ions by AFM and FT-IR

Pan

Liu

et al. 2006

Colloids and Surfaces B: Biointerfaces

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In order to elucidate the potential mechanisms involved in the biosorption of metal ions, atomic force microscopy (AFM) and Fourier transform infrared (FT-IR) spectroscopy were used to characterize the interaction between Pb 2+ and Bacillus cereus. AFM imaging of the biomass surfaces exposed to different concentrations of lead ions solution showed a major morphological change occurred after Pb 2+ biosorption. The FT-IR spectra indicated the binding characteristics of the lead ions involved the carboxyl, hydroxyl and amino groups in the biomass. Equilibrium biosorption experiments of Pb 2+ were carried out to investigate the effects of pH values and the initial metal concentrations. The experimental isotherm data were then modeled using Langmuir, Freundlich, and Redlich-Peterson isotherm equations. As a result, the Redlich-Peterson model yielded the best fit of experimental data. Kinetics experiments showed the biosorption was a rapid process and the pseudo-second-order model was successfully applied to predict the rate constant of biosorption.

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Spectroscopic characterization of Au3+ biosorption by waste biomass of Saccharomyces cerevisiae

Cited by 203 publications

References 16 publications

Konjac Biomolecules Assisted–Rod/Spherical Shaped Lead Nano Powder Synthesized by Electrolytic Process and Its Characterization Studies

Konjac Biomolecules Assisted–Rod/Spherical Shaped Lead Nano Powder Synthesized by Electrolytic Process and Its Characterization Studies

Microwave-assisted green synthesis of silver nanoparticles from Fraxinus excelsior leaf extract and its antioxidant assay

Characteristic features of Bacillus cereus cell surfaces with biosorption of Pb(II) ions by AFM and FT-IR

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