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Ivan Jebakumar DS, Robinson Richard V, Subramanian T, Rajakani V. Nitrophenol Reduction with Silver Oxide Nanostructures as a Sustainable Approach to Environmental Remediation. Chemistry 2024; 30:e202401637. [PMID: 38837442 DOI: 10.1002/chem.202401637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 05/22/2024] [Accepted: 06/04/2024] [Indexed: 06/07/2024]
Abstract
We propose silver oxide as a cost-effective and sustainable alternative to noble metals for the catalytic reduction of nitroaromatics. In the present investigation, we adopt a facile and green synthetic route for the synthesis of silver oxide nanostructures. The prepared nanostructures were found to crystallize in the cuprite phase and exhibit absorbance across the entire visible range of the electromagnetic spectrum. The catalytic potential of the silver oxide was evaluated by following the kinetics of nitrophenol reduction under ambient conditions and is observed to follow pseudo-first order kinetics with the apparent rate constantk a p p = 4 . 24 × 10 - 3 ${{k}_{app}=4.24\ \times {10}^{-3}}$ s-1 at minimum concentration of the catalyst. We attribute the observed catalytic activity to the freshly generated catalytic surface featuring a partially reduced form of silver oxide during reaction. The findings highlight the efficacy of silver oxide in mitigating the environmental pollution originating from the recalcitrant nitroarenes.
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Affiliation(s)
- D S Ivan Jebakumar
- Postgraduate department of Chemistry, St. John's College, 627 002, Tirunelveli, Tamil Nadu, India
| | - V Robinson Richard
- Postgraduate department of Chemistry, St. John's College, 627 002, Tirunelveli, Tamil Nadu, India
| | - T Subramanian
- Postgraduate department of Chemistry, St. John's College, 627 002, Tirunelveli, Tamil Nadu, India
| | - V Rajakani
- Postgraduate department of Physics, St. John's College, 627 002, Tirunelveli, Tamil Nadu, India
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2
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Huggias S, Serradell MDLÁ, Azcárate JC, Casella ML, Peruzzo PJ, Bolla PA. Catalytic Performance in Nitroarene Reduction of Nanocatalyst Based on Noble Metal Nanoparticles Supported on Polymer/s-Layer Protein Hybrids. J Phys Chem B 2024. [PMID: 38646680 DOI: 10.1021/acs.jpcb.4c00043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
We present a novel bionanocatalyst fabricated by the adsorption-reduction of metal ions on a polyurethane/S-layer protein biotemplate. The bioinspired support was obtained by the adsorption of S-layer proteins (isolated from Lentilactobacillus kefiri) on polyurethane particles. Silver and platinum nanoparticles were well-loaded on the surface of the support after the combination with metallic salts and reduction with H2 at room temperature. Transmission electron microscopy analysis revealed the strawberry-like morphology of the bionanocatalysts with a particle size, dn, of 2.39 nm for platinum and 9.60 nm for silver. Both systems catalyzed the hydrogenation of p-nitrophenol to p-aminophenol with high efficiency in water at mild conditions in the presence of NaBH4. Three different amounts of bionanocatalyst were tested, and in all cases, conversions between 97 and 99% were observed. The catalysts displayed excellent recyclability over ten cycles, and no extensive damage in their nanostructure was noted after them. The bionanocatalysts were stable during their production, storage, and use, thanks to the fact that the biosupport provides an effective driving force in the formation and stabilization of the metallic nanoparticles. The successful bioinspired production strategy and the good catalytic ability of the systems are encouraging in the search for nontoxic, simple, clean, and eco-friendly procedures for the synthesis and exploitation of nanostructures.
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Affiliation(s)
- Sofia Huggias
- Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco" - CINDECA (UNLP-CONICET CCT La Plata), Calle 47 No 257, La Plata B1900AJK, Argentina
| | - María de Los Ángeles Serradell
- Cátedra de Microbiología, Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas, Universidad Nacional de La Plata (UNLP), 47 y 115 s/n, La Plata 1900, Argentina
| | - Julio C Azcárate
- Centro Atómico Bariloche (CAB), Comisión Nacional de Energía Atómica - CONICET, Avda. E. Bustillo km 9500, San Carlos de Bariloche R8402AGP, Argentina
| | - Mónica L Casella
- Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco" - CINDECA (UNLP-CONICET CCT La Plata), Calle 47 No 257, La Plata B1900AJK, Argentina
| | - Pablo J Peruzzo
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas - INIFTA (UNLP - CONICET CCT La Plata), Diag. 113 y 64, La Plata B1904DPIB1904DPI, Argentina
| | - Patricia A Bolla
- Centro de Investigación y Desarrollo en Ciencias Aplicadas "Dr. Jorge J. Ronco" - CINDECA (UNLP-CONICET CCT La Plata), Calle 47 No 257, La Plata B1900AJK, Argentina
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3
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Rahimzadeh F, Ghadam P, Kasra-Kermanshahi R, Zarrabi M. In-situ production of silver nanobiocomposite using surface layer protein of Lactobacillus helveticus and aqueous extract of dried Juglans regia green husk and investigation of antibacterial activity. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-021-03895-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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4
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Monti GA, Correa NM, Falcone RD, Silbestri GF, Moyano F. New Insights into the Catalytic Activity and Reusability of Water‐Soluble Silver Nanoparticles. ChemistrySelect 2021. [DOI: 10.1002/slct.202102113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Gustavo A. Monti
- Instituto para el desarrollo agroindustrial y de la salud IDAS, (CONICET-UNRC.)
- Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal#3. C.P. X5804BYA Río Cuarto ARGENTINA
| | - N. Mariano Correa
- Instituto para el desarrollo agroindustrial y de la salud IDAS, (CONICET-UNRC.)
- Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal#3. C.P. X5804BYA Río Cuarto ARGENTINA
| | - R. Darío Falcone
- Instituto para el desarrollo agroindustrial y de la salud IDAS, (CONICET-UNRC.)
- Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal#3. C.P. X5804BYA Río Cuarto ARGENTINA
| | - Gustavo F. Silbestri
- Instituto de Química del Sur (INQUISUR) Departamento de Química Universidad Nacional del Sur (UNS)-CONICET Av. Alem 1253 B8000CPB Bahía Blanca ARGENTINA
| | - Fernando Moyano
- Instituto para el desarrollo agroindustrial y de la salud IDAS, (CONICET-UNRC.)
- Departamento de Química. Universidad Nacional de Río Cuarto. Agencia Postal#3. C.P. X5804BYA Río Cuarto ARGENTINA
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Pi S, Ma F, Cui D, Feng L, Zhou L, Li A. Catalytic reduction of 4-nitrophenol by green silver nanocomposites assembled using microbial extracellular polymer substances. ENVIRONMENTAL RESEARCH 2021; 197:111006. [PMID: 33722525 DOI: 10.1016/j.envres.2021.111006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/26/2021] [Accepted: 03/06/2021] [Indexed: 06/12/2023]
Abstract
Silver (Ag) nanocomposites were prepared via a facile and eco-friendly route using microbial extracellular polymer substances (EPSs) as green substrates for the catalytic reduction of 4-nitrophenol. Batch adsorption experiments demonstrated the binding of microbial EPSs to silver ions (Ag+), which was promoted by UV light, as was evident in the kinetics and thermodynamics analyses. The assembly mechanism of Ag nanocomposites prepared using microbial EPSs in the presence of UV light was investigated using the spectral analysis. The results showed that Ag+ was reduced and transformed into Ag0 by the hemiacetal groups in the microbial EPSs, and that UV light accelerated the nucleation and growth of Ag0 to form Ag nanoparticles (diameter about 12 nm), followed by loading on the surface of microbial EPSs. Catalytic reduction of 4-nitrophenol over Ag nanocomposites was almost completed within 60 s without stirring, and the kinetic rate constant (k) was 49.9 × 10-3 s-1. The recyclability test showed that Ag nanocomposites stably maintained the efficiency of catalytic reduction through five repeated reaction cycles. This work proved that Ag nanocomposites assembled using microbial EPSs have great catalytic activity in the reduction of 4-nitrophenol, providing the green and efficient catalyst for the reduction of organic pollutants in the environment.
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Affiliation(s)
- Shanshan Pi
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Di Cui
- Pharmaceutical Engineering Technology Research Center, Harbin University of Commerce, Harbin, 150076, PR China
| | - Liang Feng
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Lu Zhou
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China
| | - Ang Li
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, PR China.
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6
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Tiwari S, Kavitake D, Devi PB, Halady Shetty P. Bacterial exopolysaccharides for improvement of technological, functional and rheological properties of yoghurt. Int J Biol Macromol 2021; 183:1585-1595. [PMID: 34044028 DOI: 10.1016/j.ijbiomac.2021.05.140] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 04/18/2021] [Accepted: 05/20/2021] [Indexed: 11/27/2022]
Abstract
Exopolysaccharides (EPS) are known to have technological and functional applications in food industry including dairy based products such as yoghurt. Yoghurt is a widely consumed dairy based product due to pleasant taste and texture, as well as a source of nutrients and bioactive compounds. At the same time, structural, rheological and sensorial properties are important in the production of good quality yoghurt. Various natural hydrocolloids including EPS with stabilizing and texture enhancing properties could be useful in enhancing these desirable properties. Apart from that, EPS may enhance various other functional properties of yoghurt such as antioxidant and prebiotic potential. Based on its prebiotic property, symbiotic products could be developed by combining EPS and probiotic bacterial strains. EPS has potential to provide physical and micro structural stability, thereby enhancing the protein distribution and viscoelastic properties. Main focus of the present review is to provide an insight on the action of EPS as a functional hydrocolloid on the technological, rheological and functional properties of yoghurt and related products.
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Affiliation(s)
- Swati Tiwari
- Department of Food Science and Technology, Pondicherry University, Pondicherry 605014, India
| | - Digambar Kavitake
- Department of Food Science and Technology, Pondicherry University, Pondicherry 605014, India
| | - Palanisamy Bruntha Devi
- Department of Food Science and Technology, Pondicherry University, Pondicherry 605014, India
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7
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Single-Step Green Synthesis of Highly Concentrated and Stable Colloidal Dispersion of Core-Shell Silver Nanoparticles and Their Antimicrobial and Ultra-High Catalytic Properties. NANOMATERIALS 2021; 11:nano11041007. [PMID: 33919980 PMCID: PMC8071046 DOI: 10.3390/nano11041007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 12/13/2022]
Abstract
The versatile one-pot green synthesis of a highly concentrated and stable colloidal dispersion of silver nanoparticles (Ag NPs) was carried out using the self-assembled tannic acid without using any other hazardous chemicals. Tannic acid (Plant-based polyphenol) was used as a reducing and stabilizing agent for silver nitrate in a mild alkaline condition. The synthesized Ag NPs were characterized for their concentration, capping, size distribution, and shape. The experimental results confirmed the successful synthesis of nearly spherical and highly concentrated (2281 ppm) Ag NPs, capped with poly-tannic acid (Ag NPs-PTA). The average particle size of Ag NPs-PTA was found to be 9.90 ± 1.60 nm. The colloidal dispersion of synthesized nanoparticles was observed to be stable for more than 15 months in the ambient environment (25 °C, 65% relative humidity). The synthesized AgNPs-PTA showed an effective antimicrobial activity against Staphylococcus Aureus (ZOI 3.0 mM) and Escherichia coli (ZOI 3.5 mM). Ag NPs-PTA also exhibited enhanced catalytic properties. It reduces 4-nitrophenol into 4-aminophenol in the presence of NaBH4 with a normalized rate constant (Knor = K/m) of 615.04 mL·s-1·mg-1. For comparison, bare Ag NPs show catalytic activity with a normalized rate constant of 139.78 mL·s-1·mg-1. Furthermore, AgNPs-PTA were stable for more than 15 months under ambient conditions. The ultra-high catalytic and good antimicrobial properties can be attributed to the fine size and good aqueous stability of Ag NPs-PTA. The unique core-shell structure and ease of synthesis render the synthesized nanoparticles superior to others, with potential for large-scale applications, especially in the field of catalysis and medical.
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Badr EA, Shafek S, Hefni H, Elsharif AM, Alanezi AA, Shaban SM, Kim DH. Synthesis of Schiff base-based cationic Gemini surfactants and evaluation of their effect on in-situ AgNPs preparation: Structure, catalytic, and biological activity study. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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9
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Elged AH, Shaban SM, Eluskkary M, Aiad I, Soliman E, Elsharif AM, Kim DH. Impact of hydrophobic tails of new phospho-zwitterionic surfactants on the structure, catalytic, and biological activities of AgNPs. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.11.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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10
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Manno R, Sebastian V, Irusta S, Mallada R, Santamaria J. Ultra-Small Silver Nanoparticles Immobilized in Mesoporous SBA-15. Microwave-Assisted Synthesis and Catalytic Activity in the 4-Nitrophenol Reduction. Catal Today 2021. [DOI: 10.1016/j.cattod.2020.04.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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11
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Lee SJ, Begildayeva T, Yeon S, Naik SS, Ryu H, Kim TH, Choi MY. Eco-friendly synthesis of lignin mediated silver nanoparticles as a selective sensor and their catalytic removal of aromatic toxic nitro compounds. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 269:116174. [PMID: 33280906 DOI: 10.1016/j.envpol.2020.116174] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/07/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
The development of an eco-friendly and reliable process for the production of nanomaterials is essential to overcome the toxicity and exorbitant cost of conventional methods. As such, a facile and green synthesis method is introduced for the preparation of lignin mediated silver nanoparticles (L-Ag NPs). This is produced by reducing Ag precursors using lignin biopolymers which are formulated by pulsed laser irradiation and an ultrasonication process. Lignin operates as both a reducing and stabilizing agent. The various analytical techniques of ultraviolet-visible spectroscopy, transmission electron microscope and X-ray diffractometer studies were employed to verify the formation of non-aggregated spherical L-Ag NPs with an average size as small as 7-8 nm. The selective sensing capability of the synthesized L-Ag NPs was examined for the detection of hydrogen peroxide and mercury ions in an aqueous environment. Furthermore, the superior catalytic performance of L-Ag NPs was demonstrated by the rapid conversion of toxic 4-nitrophenol and nitrobenzene as targeted pollutants to the corresponding amino compounds. A plausible catalytic reduction mechanism for the removal of toxic nitro-organic pollutants over L-Ag NPs is proposed. This research coincides with existing studies and affirms that L-Ag NPs are an effective sensor that be applied as a catalytic material within environmental remediation and also alternative biomedical applications.
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Affiliation(s)
- Seung Jun Lee
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Talshyn Begildayeva
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Sanghun Yeon
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Shreyanka Shankar Naik
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Hakseung Ryu
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Tae Ho Kim
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Myong Yong Choi
- Department of Chemistry (BK21 FOUR) and Research Institute of Natural Science, Gyeongsang National University, Jinju, 52828, Republic of Korea.
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12
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Aletayeb P, Ghadam P, Mohammadi P. Green synthesis of AgCl/Ag 3PO 4 nanoparticle using cyanobacteria and assessment of its antibacterial, colorimetric detection of heavy metals and antioxidant properties. IET Nanobiotechnol 2020; 14:707-713. [PMID: 33108328 DOI: 10.1049/iet-nbt.2020.0077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In this study, the extract of two strains of cyanobacteria was used for the synthesis of silver nanoparticles (NPs). UV-vis spectroscopy, X-ray diffraction, dynamic light scattering and field emission scanning electron microscopy (FESEM) analyses were carried out to characterise the NPs. The antioxidant activity and heavy metal detection properties were investigated; moreover, their minimum inhibitory concentration and minimum bactericidal concentration against the multi-drug resistant bacteria were determined. The most abundant materials in these extracts were carbohydrates, so the biosynthesis of NPs using exopolysaccharide (EPS) was also investigated. The surface plasmon resonance of NPs had a peak at 435 nm and EPS NPs at 350-450 nm. The NPs produced by Nostoc sp. IBRC-M5064 extract revealed the face-centred cubic (fcc) structure of AgCl, while NPs of N. pruniforme showed the fcc crystalline structure of Ag3PO4 and AgCl. The FESEM showed the spherical shape of these NPs. The AgCl/Ag3PO4 colloid, in comparison with AgCl, showed better antioxidant activity and antibacterial effect. The heavy metal detection analysis of NPs revealed that the NPs of both stains involved in Hg (NO3)2 detection.
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Affiliation(s)
- Parisa Aletayeb
- Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
| | - Parinaz Ghadam
- Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran.
| | - Parisa Mohammadi
- Department of Microbiology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
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Huggias S, Bolla PA, Azcarate JC, Serradell MA, Casella ML, Peruzzo PJ. Noble metal nanoparticles-based heterogeneous bionano-catalysts supported on S-layer protein/polyurethane system. Catal Today 2020. [DOI: 10.1016/j.cattod.2020.09.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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14
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Investigation of Catalytic Potential and Radical Scavenging Efficacy of Terminalia bellerica Roxb Bark Mediated Ecofriendly Silver Nanoparticles. J CLUST SCI 2020. [DOI: 10.1007/s10876-020-01865-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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15
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Extruded polysaccharide/protein matrix from Arthrospira platensis cultures mediated silver nanoparticles biosynthesis and capping. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01490-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Monti GA, Correa NM, Falcone RD, Silbestri GF, Moyano F. Water-soluble gold nanoparticles: recyclable catalysts for the reduction of aromatic nitro compounds in water. RSC Adv 2020; 10:15065-15071. [PMID: 35495421 PMCID: PMC9052294 DOI: 10.1039/d0ra02131h] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 04/02/2020] [Indexed: 12/03/2022] Open
Abstract
A structure/catalytic activity study of water-soluble gold nanoparticles, stabilized by zwitterionic ligands derived from imidazolium salts, in the reduction of aromatic nitro compounds in pure water at different temperature, as well as their recyclability, was performed. Our studies indicate that the nanoparticles synthesized by an easy, fast and reproducible process, need a short characteristic induction time to restructure the surfaces and make them active. The differences observed in the catalytic activity of the nanoparticles, determined by using the typical Langmuir–Hinshelwood model, are strongly based on the degree of coverage and spatial arrangement of the imidazolium salts on them. Finally, we demonstrate that gold nanoparticles stabilized by non-traditional ligands can be an excellent choice for nitro compound degradation. A structure/catalytic activity study of water-soluble gold nanoparticles, stabilized by zwitterionic ligands derived from imidazolium salts, in the reduction of aromatic nitro compounds in pure water, as well as their recyclability, was performed.![]()
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Affiliation(s)
- Gustavo A. Monti
- Instituto para el desarrollo agroindustrial y de la salud
- IDAS
- (CONICET – UNRC)
- Argentina
- Departamento de Química
| | - N. Mariano Correa
- Instituto para el desarrollo agroindustrial y de la salud
- IDAS
- (CONICET – UNRC)
- Argentina
- Departamento de Química
| | - R. Darío Falcone
- Instituto para el desarrollo agroindustrial y de la salud
- IDAS
- (CONICET – UNRC)
- Argentina
- Departamento de Química
| | - Gustavo F. Silbestri
- Instituto de Química del Sur (INQUISUR)
- Departamento de Química
- Universidad Nacional del Sur (UNS)
- CONICET
- Bahía Blanca
| | - Fernando Moyano
- Instituto para el desarrollo agroindustrial y de la salud
- IDAS
- (CONICET – UNRC)
- Argentina
- Departamento de Química
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17
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Hussain F, Shaban SM, Kim J, Kim DH. One-pot synthesis of highly stable and concentrated silver nanoparticles with enhanced catalytic activity. KOREAN J CHEM ENG 2019. [DOI: 10.1007/s11814-019-0270-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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18
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Effect of γ-irradiation on physico-chemical and antioxidant properties of galactan exopolysaccharide from Weissella confusa KR780676. Journal of Food Science and Technology 2019; 56:1766-1774. [PMID: 30996412 DOI: 10.1007/s13197-019-03608-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 01/23/2019] [Accepted: 01/29/2019] [Indexed: 10/27/2022]
Abstract
Exopolysaccharide (EPS) produced by Weissella confusa KR780676 from an Indian fermented food (Idli) has been characterized as galactan in earlier report. In this study, the galactan EPS was irradiated at different doses (0, 4, 8, and 16 kGy) using 60Co as γ-source and effect of γ-irradiation on physico-chemical and antioxidant potential of galactan EPS was studied. Color and flow properties showed moderate change after the γ-irradiation treatment. Particle size analysis and scanning electron microscopy exhibited significant breakdown of the EPS particles into smaller average hydrodynamic diameter size from 495.54 to 198.44 nm with increasing irradiation doses. Overall, pH showed decrease, while the water activity showed an increasing trend with the increasing irradiation dose. No significant effect was observed in the functional groups of EPS as revealed in the FT-IR spectroscopic analysis. After the treatment, semi-crystalline nature of the EPS changed to amorphous as shown in XRD analysis due to the breakdown. Antioxidant activities of galactan EPS increased marginally after the treatment. However, hydroxyl radical scavenging activity increased significantly from 48 to 67%. Changes in physico-chemical and antioxidant properties of galactan EPS with γ-irradiation treatment altered the functional properties of EPS positively, making it more suitable for wider application in the food industry.
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Shavandi A, Saeedi P, Ali MA, Jalalvandi E. Green synthesis of polysaccharide-based inorganic nanoparticles and biomedical aspects. FUNCTIONAL POLYSACCHARIDES FOR BIOMEDICAL APPLICATIONS 2019. [PMCID: PMC7151831 DOI: 10.1016/b978-0-08-102555-0.00008-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Biologically mediated inorganic nanoparticles (NPs) are considered as a green, cheap, and environmental-friendly materials, which connect the nanotechnology and biomedical sciences. Metallic NPs such as gold and silver NPs, synthesized using natural materials are an important branch of inorganic NPs with catalytic functionalities and a diverse range of biomedical applications such as antimicrobial application. Polysaccharides are excellent candidates to stabilize and control the size of NPs during the synthesis process. These polymers possess multiple binding sites, which facilitate attachment to the metal surface. As a result, polysaccharides can effectively create an organic-inorganic network of the metal NPs and confer a significant protection against aggregation and chemical modifications. This chapter discusses the methods of the preparation of polysaccharide-mediated NPs and reviews various types and diverse applications for these novel materials.
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Cunha FA, Cunha MDCSO, da Frota SM, Mallmann EJJ, Freire TM, Costa LS, Paula AJ, Menezes EA, Fechine PBA. Biogenic synthesis of multifunctional silver nanoparticles from Rhodotorula glutinis and Rhodotorula mucilaginosa: antifungal, catalytic and cytotoxicity activities. World J Microbiol Biotechnol 2018; 34:127. [PMID: 30084085 DOI: 10.1007/s11274-018-2514-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 08/01/2018] [Indexed: 01/14/2023]
Abstract
Silver nanoparticles (AgNPs) have several technological applications and may be synthetized by chemical, physical and biological methods. Biosynthesis using fungi has a wide enzymatic range and it is easy to handle. However, there are few reports of yeasts with biosynthetic ability to produce stable AgNPs. The purpose of this study was to isolate and identify soil yeasts (Rhodotorula glutinis and Rhodotorula mucilaginosa). After this step, the yeasts were used to obtain AgNPs with catalytic and antifungal activity evaluation. Silver Nanoparticles were characterized by UV-Vis, DLS, FTIR, XRD, EDX, SEM, TEM and AFM. The AgNPs produced by R. glutinis and R. mucilaginosa have 15.45 ± 7.94 nm and 13.70 ± 8.21 nm (average ± SD), respectively, when analyzed by TEM. AgNPs showed high catalytic capacity in the degradation of 4-nitrophenol and methylene blue. In addition, AgNPs showed high antifungal activity against Candida parapsilosis and increase the activity of fluconazole (42.2% for R. glutinis and 29.7% for R. mucilaginosa), while the cytotoxicity of AgNPs was only observed at high concentrations. Finally, two yeasts with the ability to produce AgNPs were described and these particles showed multifunctionality and can represent a technological alternative in many different areas with potential applications.
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Affiliation(s)
- Francisco A Cunha
- Grupo de Química de Materiais Avançados (GQMat)- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970, Fortaleza, CE, Brazil.,Laboratório de Microbiologia de Leveduras - Departamento de Análises Clínicas, Universidade Federal do Ceará - UFC, Fortaleza, Brazil
| | - Maria da C S O Cunha
- Laboratório de Microbiologia de Leveduras - Departamento de Análises Clínicas, Universidade Federal do Ceará - UFC, Fortaleza, Brazil
| | - Sabrina M da Frota
- Laboratório de Microbiologia de Leveduras - Departamento de Análises Clínicas, Universidade Federal do Ceará - UFC, Fortaleza, Brazil
| | - Eduardo J J Mallmann
- Grupo de Química de Materiais Avançados (GQMat)- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970, Fortaleza, CE, Brazil
| | - Tiago M Freire
- Grupo de Química de Materiais Avançados (GQMat)- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970, Fortaleza, CE, Brazil
| | - Luelc S Costa
- Laboratório Nacional de Nanotecnologia (LNNano), Centro Nacional de Pesquisa Em Energia e Materiais (CNPEM), CEP 13083-970, Campinas, São Paulo, Brazil
| | - Amauri J Paula
- Solid-Biological Interface Group (SolBIN), Departamento de Física, Universidade Federal do Ceará, P.O. Box 6030, Fortaleza, CE, 60455-900, Brazil
| | - Everardo A Menezes
- Laboratório de Microbiologia de Leveduras - Departamento de Análises Clínicas, Universidade Federal do Ceará - UFC, Fortaleza, Brazil
| | - Pierre B A Fechine
- Grupo de Química de Materiais Avançados (GQMat)- Departamento de Química Analítica e Físico-Química, Universidade Federal do Ceará - UFC, Campus do Pici, CP 12100, CEP 60451-970, Fortaleza, CE, Brazil.
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Dhanavel S, Manivannan N, Mathivanan N, Gupta VK, Narayanan V, Stephen A. Preparation and characterization of cross-linked chitosan/palladium nanocomposites for catalytic and antibacterial activity. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.02.076] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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22
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Wang C, Gao X, Chen Z, Chen Y, Chen H. Preparation, Characterization and Application of Polysaccharide-Based Metallic Nanoparticles: A Review. Polymers (Basel) 2017; 9:E689. [PMID: 30965987 PMCID: PMC6418682 DOI: 10.3390/polym9120689] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/03/2017] [Accepted: 12/05/2017] [Indexed: 12/25/2022] Open
Abstract
Polysaccharides are natural biopolymers that have been recognized to be the most promising hosts for the synthesis of metallic nanoparticles (MNPs) because of their outstanding biocompatible and biodegradable properties. Polysaccharides are diverse in size and molecular chains, making them suitable for the reduction and stabilization of MNPs. Considerable research has been directed toward investigating polysaccharide-based metallic nanoparticles (PMNPs) through host⁻guest strategy. In this review, approaches of preparation, including top-down and bottom-up approaches, are presented and compared. Different characterization techniques such as scanning electron microscopy, transmission electron microscopy, dynamic light scattering, UV-visible spectroscopy, Fourier-transform infrared spectroscopy, X-ray diffraction and small-angle X-ray scattering are discussed in detail. Besides, the applications of PMNPs in the field of wound healing, targeted delivery, biosensing, catalysis and agents with antimicrobial, antiviral and anticancer capabilities are specifically highlighted. The controversial toxicological effects of PMNPs are also discussed. This review can provide significant insights into the utilization of polysaccharides as the hosts to synthesize MPNs and facilitate their further development in synthesis approaches, characterization techniques as well as potential applications.
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Affiliation(s)
- Cong Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Xudong Gao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Zhongqin Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Yue Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
| | - Haixia Chen
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
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Chen A, Contreras LM, Keitz BK. Imposed Environmental Stresses Facilitate Cell-Free Nanoparticle Formation by Deinococcus radiodurans. Appl Environ Microbiol 2017; 83:e00798-17. [PMID: 28687649 PMCID: PMC5583488 DOI: 10.1128/aem.00798-17] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 06/22/2017] [Indexed: 12/11/2022] Open
Abstract
The biological synthesis of metal nanoparticles has been examined in a wide range of organisms, due to increased interest in green synthesis and environmental remediation applications involving heavy metal ion contamination. Deinococcus radiodurans is particularly attractive for environmental remediation involving metal reduction, due to its high levels of resistance to radiation and other environmental stresses. However, few studies have thoroughly examined the relationships between environmental stresses and the resulting effects on nanoparticle biosynthesis. In this work, we demonstrate cell-free nanoparticle production and study the effects of metal stressor concentrations and identity, temperature, pH, and oxygenation on the production of extracellular silver nanoparticles by D. radiodurans R1. We also report the synthesis of bimetallic silver and gold nanoparticles following the addition of a metal stressor (silver or gold), highlighting how production of these particles is enabled through the application of environmental stresses. Additionally, we found that both the morphology and size of monometallic and bimetallic nanoparticles were dependent on the environmental stresses imposed on the cells. The nanoparticles produced by D. radiodurans exhibited antimicrobial activity comparable to that of pure silver nanoparticles and displayed catalytic activity comparable to that of pure gold nanoparticles. Overall, we demonstrate that biosynthesized nanoparticle properties can be partially controlled through the tuning of applied environmental stresses, and we provide insight into how their application may affect nanoparticle production in D. radiodurans during bioremediation.IMPORTANCE Biosynthetic production of nanoparticles has recently gained prominence as a solution to rising concerns regarding increased bacterial resistance to antibiotics and a desire for environmentally friendly methods of bioremediation and chemical synthesis. To date, a range of organisms have been utilized for nanoparticle formation. The extremophile D. radiodurans, which can withstand significant environmental stresses and therefore is more robust for metal reduction applications, has yet to be exploited for this purpose. Thus, this work improves our understanding of the impact of environmental stresses on biogenic nanoparticle morphology and composition during metal reduction processes in this organism. This work also contributes to enhancing the controlled synthesis of nanoparticles with specific attributes and functions using biological systems.
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Affiliation(s)
- Angela Chen
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas, USA
| | - Lydia M Contreras
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas, USA
| | - Benjamin K Keitz
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas, USA
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Tigger-Zaborov H, Maayan G. Nanoparticles assemblies on demand: Controlled aggregation of Ag(0) mediated by modified peptoid sequences. J Colloid Interface Sci 2017; 508:56-64. [PMID: 28822292 DOI: 10.1016/j.jcis.2017.08.039] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/09/2017] [Accepted: 08/11/2017] [Indexed: 01/09/2023]
Abstract
Assemblies of metal nanoparticles (NPs) have been broadly used for the construction of materials with distinct spectroscopic properties towards sensing applications. On the other hand, well-dispersed NPs are exploit for applications in catalysis and medicine. Biopolymers or biomimetic oligomers can serve both as efficient stabilizers of NPs and as useful aggregation mediators that can lead to assemblies with unique properties. Controlling aggregation processes, however, is still challenging and often relies on trial and error rather than on defined thumb rules. Herein we develop specific guidelines for the controlled aggregation of Ag(0) NPs at room temperature in water near neutral pH and without any additives. We use short peptide mimics, N-substituted glycine oligomers called peptoids, as mediators, and investigate the influence of sequences variations on the NPs assembly. Spectroscopic and electron microscopy data reveal that both the length of the peptoids and their sequences have an effect on the NPs aggregation. Thus, we demonstrate that we can control both the degree of aggregation and the aggregates sizes by tuning these properties. Specifically we show that longer peptoid sequences as well as sequences consisting of aromatic side chains are required for the formation of uniform NPs assemblies in an average size of 70nm, while a short hydrophilic sequence can stabilize well-dispersed Ag(0) NPs. Moreover, the catalytic activity of Ag(0) NPs towards the reduction of 4-nitrophenol to 4-aminophenol can be also controlled by varying the properties of the peptoid mediators.
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Affiliation(s)
- Hagar Tigger-Zaborov
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, Israel
| | - Galia Maayan
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Haifa, Israel.
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Physico-chemical characterization of galactan exopolysaccharide produced by Weissella confusa KR780676. Int J Biol Macromol 2016; 93:822-828. [DOI: 10.1016/j.ijbiomac.2016.09.054] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 09/07/2016] [Accepted: 09/15/2016] [Indexed: 01/13/2023]
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26
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Kästner C, Thünemann AF. Catalytic Reduction of 4-Nitrophenol Using Silver Nanoparticles with Adjustable Activity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:7383-91. [PMID: 27380382 DOI: 10.1021/acs.langmuir.6b01477] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We report on the development of ultrasmall core-shell silver nanoparticles synthesized by an upscaled modification of the polyol process. It is foreseen to use these thoroughly characterized particles as reference material to compare the catalytic and biological properties of functionalized silver nanoparticles. Small-angle X-ray scattering (SAXS) analysis reveals a narrow size distribution of the silver cores with a mean radius of Rc = 3.0 nm and a distribution width of 0.6 nm. Dynamic light scattering (DLS) provides a hydrodynamic radius of RH = 10.0 nm and a PDI of 0.09. The particles' surface is covered with poly(acrylic acid) (PAA) forming a shell with a thickness of 7.0 nm, which provides colloidal stability lasting for more than 6 months at ambient conditions. The PAA can be easily exchanged by biomolecules to modify the surface functionality. Replacements of PAA with glutathione (GSH) and bovine serum albumin (BSA) have been performed as examples. We demonstrate that the silver particles effectively catalyze the reduction of 4-nitrophenol to 4-aminophenol with sodium borohydride. With PAA as stabilizer, the catalytic activity of 436 ± 24 L g(-1) s(-1) is the highest reported in the literature for silver nanoparticles. GSH and BSA passivate the surface substantially, resulting in a catalytic activity of 77.6 ± 0.9 and 3.47 ± 0.50 L g(-1) s(-1), respectively.
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Affiliation(s)
- Claudia Kästner
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| | - Andreas F Thünemann
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205 Berlin, Germany
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