Hydrogen peroxide sensing and cytotoxicity activity of Acacia lignin stabilized silver nanoparticles

Aadil, Keshaw Ram; Barapatre, Anand; Meena, Avtar S.; Jha, Harit

doi:10.1016/j.ijbiomac.2015.09.072

Cited by 76 publications

(44 citation statements)

References 44 publications

(63 reference statements)

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“…It is also a waste product of paper and pulp industries wherein approximately 50 million tons of lignin are generated annually (Sivasankarapillai and McDonald 2011;Zeng et al 2014;Saini et al 2015). The complex polyphenolic structure and numerous functional groups of lignin are useful in their effective utilization for the development of polymers, adhesives, coating, additives, carbon fibers, activated carbon, foams and metal nanoparticles (Park et al 2008;Wang et al 2009;Aadil et al 2016). The effective use of lignin in blends with different biopolymers, such as starch (Bhat et al 2013), gelatin (Nunez-Flores et al 2013) and synthetic polymers like poly(vinyl alcohol), poly(ethylene), poly(lactic acid), poly(vinyl chloride) have also been reported in the literature (Gordobil et al 2014;Sahoo, et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of Acacia lignin-gelatin film for its possible application in food packaging

Aadil

Barapatre

Jha

2016

Bioresour. Bioprocess.

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Background:The aim of the present investigation was to develop Acacia lignin-gelatin (LG) blended films using glycerol as plasticizer and to establish correlation between lignin contents and structure, thermal and mechanical properties of the film. Acacia lignin extracted by alkali method was used for the preparation of LG blended films by solution casting method.Results: Solubility and swelling tests of the films concluded that the lignin incorporation reduced water affinity of film. Lignin incorporation produces a noticeable plasticizing effect on the blended film, showing optimum values for film incorporated with 20 and 30 % (w/v) lignin, as deduced from their mechanical and thermal properties. Lignin blended film had lower glass transition temperatures (T g ) as compared to control gelatin. Infrared spectroscopy (FTIR) analysis of films suggested that lignin interacts with gelatin by hydrogen bonding and hydrophobic interaction consequently creating conformational changes. Atomic force microscopic (AFM) study displays smooth surface of synthesized films. Light barrier properties of film revealed that the lignin addition improved barrier properties against UV light in the range of 280-350 nm. Furthermore, the lowest scavenging activity was observed in LG-E (111.10 µg/ ml) trailed by LG-D (249.29 µg/ml) and LG-C (259.53 µg/ml). Conclusions:The LG films showed improved light barrier and antioxidant properties with low cytotoxicity, displaying great potential in food packaging and coating for preventing ultraviolet induced lipid oxidation with an extended biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of Acacia lignin-gelatin film for its possible application in food packaging

Aadil

Barapatre

Jha

2016

Bioresour. Bioprocess.

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“…Green synthesis of silver nanoparticles (AgNPs) by using different parts of plant such as leaf [4], stem [5], and root [6], microorganism [7,8], and biopolymers such as starch [9], chitosan [10], lignin [11], latex [12] as a reducing agent, have been reported previously. Besides, studies reported limited synthesis of AgNPs using agricultural waste such as Annono squamosa and mango peel extracts [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…Polyvinylpyrrolidone, Polyethylene glycol, and surfactants are used as stabilizers to prevent AgNPs aggregation and precipitation [16]. AgNPs exhibit properties that are of interest for applications ranging from antimicrobial [4][5][6][7][8][9][10]12], antioxidant [17], antiproliferative [4,7,11,17] antiplasmodial [18], larvicidal and paste control [19,20], H 2 O 2 sensing [11] along with other applications like medical imaging and drug delivery [21], hyperthermia in cancer therapy [22], and dye reduction [23].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Silver Nanoparticles Using Water Extract from Galls of Rhus Chinensis and Its Antibacterial Activity

et al. 2016

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The green synthesis of silver nanoparticles (AgNPs) has been proposed as a simple, eco-friendly and cost effective alternative to chemical and physical methods. The Rhus chinensis plant is one of the well studied medicinal plant and its galls find excellent clinical and therapeutic applications. The present study reports the use of water extract from galls of R. chinensis as a reducing agent and formation of AgNPs from silver nitrate solution by a green synthesis route. The AgNPs formation was observed visually by color change and the absorbance peak at 450 nm was observed by UV-Visible spectrophotometer. The shape, size, and morphology of synthesized AgNPs were monitored by transmission electron microscopy and field-emission scanning electron microscopy. The face centered cubic structure of AgNPs was confirmed by X-ray diffraction pattern and element composition by energy dispersive X-ray analysis. The Fourier transform infrared spectroscopy spectrum revealed that the presence of components acts as a reducing and capping agent. The antibacterial activity was performed using the agar well diffusion method. Minimum inhibitory concentration and minimum bactericidal concentration were determined by broth dilution and spread plate method respectively. Synthesized nanoparticles were spotted as triangular and hexagonal shape and the particle size was around 150 nm.

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“…Th is could likely be due to the type of synthesis procedure applied for making not only the NPs (Powers et al, 2011a, Samberg et al, 2011, but also the bioconjugate . Th e type or composition of the coating agent infl uences the outcome of exposure, corroborating previous fi ndings (Aadil et al, 2016) where the infl uence of lignin concentration, incubation temperature and time in the synthesis of Ag NPs were assessed. Also, the pH of the solution during the synthesis was important in determining the surface charge of the NPs, with acidic pH resulting in negatively charged NPs while basic pH leads to positively charged NPs.…”

Section: Eff Ect Assessmentsupporting

confidence: 86%

In vitro assays for hazard identification of nanoparticles

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Hydrogen peroxide sensing and cytotoxicity activity of Acacia lignin stabilized silver nanoparticles

Cited by 76 publications

References 44 publications

Synthesis and characterization of Acacia lignin-gelatin film for its possible application in food packaging

Synthesis and characterization of Acacia lignin-gelatin film for its possible application in food packaging

Green Synthesis of Silver Nanoparticles Using Water Extract from Galls of Rhus Chinensis and Its Antibacterial Activity

In vitro assays for hazard identification of nanoparticles

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