Label free and high specific detection of mercury ions based on silver nano-liposome

Priyadarshini, Eepsita; Pradhan, Nilotpala; Pradhan, Arun Kumar; Pradhan, Pallavi

doi:10.1016/j.saa.2016.03.040

Cited by 20 publications

(7 citation statements)

References 27 publications

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“…Ability of the biosurfactants to act both as reducing as well as stabilizing agents in the synthesis of nanoparticles have recently been reported by Priyadarshini et al (2016). Nanoparticles are usually synthesized by physicochemical methods that involve the use of high pressure, temperature and energy; as suggested by Plaza et al (2014) the synthesis of nanoparticles using chemical methods are usually associated with the formation of toxic by-products.…”

Section: Introductionmentioning

confidence: 92%

Agro-Industrial Wastes for Production of Biosurfactant by Bacillus subtilis ANR 88 and Its Application in Synthesis of Silver and Gold Nanoparticles

et al. 2017

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Biosurfactants, surface-active amphiphilic compounds, despite having a wide range of applications, have a high cost of production, which severely restricts their use. For cheaper production of biosurfactant, we investigated the potential of the indigenously isolated biosurfactant producing organism, Bacillus subtilis ANR 88, to grow on different cheap carbon sources (molasses, whey, and extracts of potato peels, orange peels, banana peels, and bagasse). We found that, B. subtilis ANR 88 used significant amounts of total sugar to produce cell biomass and biosurfactant. The biosurfactant production in minimal medium containing glucose as sole source of carbon was 0.207 g/l and the same with molasses as carbon source was 0.241 g/l. With whey as carbon source, isolate failed to produce biosurfactant. Amongst the extracts of the agro-wastes, the extracts of bagasse and orange peels gave 0.127 and 0.089 g/l of biosurfactant respectively. One-variable-at-a-time (OVAT) studies carried out to optimize the production of biosurfactant by B. subtilis ANR 88 resulted into maximum biosurfactant yield of 0.513 g/l in medium: molasses 4%, ammonium ferric citrate 0.25%, pH 7. Plackett–Burman design based statistical method for optimization increased the production of biosurfactant to 0.746 g/l, which is 3.6-fold of that produced on glucose. The biosurfactant produced by B. subtilis ANR 88 was analyzed by Fourier Transform Infrared Spectroscopy (FT-IR); it showed that the biosurfactant contained alkyl as well as peptide groups. The biosurfactant of B. subtilis ANR 88 was found effective in the synthesis of silver as well as gold nanoparticles in the total absence of conventional chemical reducing agents. Interestingly, nanoparticles produced were almost uniform in their size and shapes i.e., spherical silver (4–18 nm) and hexagonal gold nanoparticles (40–60 nm), as evident in TEM images.

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Section: Introductionmentioning

confidence: 92%

Agro-Industrial Wastes for Production of Biosurfactant by Bacillus subtilis ANR 88 and Its Application in Synthesis of Silver and Gold Nanoparticles

et al. 2017

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“…Nowadays, considerable attention has been paid to the green synthesis of nanoparticles through biosurfactants and biological substances, because of hazardous and toxic by-products are usually paired with chemical methods (Kasture et al 2008; Kumar et al 2010). As evident from earlier studies, biosurfactants can act as both reducing and stabilizing agents in the synthesis of NPs, such as lipopeptide biosurfactant, sophorolipids, and rhamnolipid (Kasture et al 2008; Reddy et al 2009; Priyadarshini et al 2016). Synthesis of nanoparticles by biosurfactant is superior to the biological methods, due to the (Kiran et al 2011).…”

Section: Introductionmentioning

confidence: 96%

Synthesis of gold nanoparticles derived from mannosylerythritol lipid and evaluation of their bioactivities

et al. 2019

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In this study, we introduce a simple and green method for synthesis of gold nanoparticles (AuNPs) using microbial glycolipid mannosylerythritol lipid (MEL) produced from Ustilago maydis CGMCC 5.203 and to evaluate their biomedical activities. MEL was found 10.3 g/L using sunflower oil. The formation of MEL-AuNPs was verified using UV–visible spectrum, XRD, TEM, FTIR, SEM, and EDX. In the biomedical examinations, MEL-AuNPs demonstrated potential cytotoxicity against HepG2 cells, and IC 50 values were found to be 100 and 75 µg/mL for 24 h and 48 h of exposure, respectively, which indicates its good performance against cancer cells. The IC 50 value of MEL-AuNPs was found to be 115 and 124 µg/mL for DPPH and ABTS scavenging activities, respectively. The biosynthesized MEL-AuNPs significantly inhibited cell growth of pathogenic Gram-positive and Gram-negative bacteria. These findings indicated that MEL plays a crucial role in the rapid biofabrication method of metallic NPs possessed the potential of biomedical activities.

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“…25 As evident from previous reports, biosurfactants have ability to mediate the synthesis of NPs as both reducing and stabilizing agents, such as rhamnolipid, sophorolipids, and lipopeptide biosurfactant. 18,26,27 Gum arabic (GA, E-414) is an edible and dried exudation obtained from the stems and branches of Acacia senegal. It is widely used as a thickening, emulsier and stabilizer agent for food, pharmaceutical and cosmetics industries.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of antidiabetic, bactericidal, and antitumor activities of MEL@AgNPs, MEL@ZnONPs, and Ag–ZnO/MEL/GA nanocomposites prepared by using MEL and gum arabic

et al. 2019

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Label free and high specific detection of mercury ions based on silver nano-liposome

Cited by 20 publications

References 27 publications

Agro-Industrial Wastes for Production of Biosurfactant by Bacillus subtilis ANR 88 and Its Application in Synthesis of Silver and Gold Nanoparticles

Agro-Industrial Wastes for Production of Biosurfactant by Bacillus subtilis ANR 88 and Its Application in Synthesis of Silver and Gold Nanoparticles

Synthesis of gold nanoparticles derived from mannosylerythritol lipid and evaluation of their bioactivities

Comparative study of antidiabetic, bactericidal, and antitumor activities of MEL@AgNPs, MEL@ZnONPs, and Ag–ZnO/MEL/GA nanocomposites prepared by using MEL and gum arabic

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