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Priyadarshini A, Mishra S, Sahoo NK, Raut S, Daverey A, Tripathy BC. Biodegradation of Phenol Using the Indigenous Rhodococcus pyridinivorans Strain PDB9T NS-1 Immobilized in Calcium Alginate Beads. Appl Biochem Biotechnol 2024; 196:2798-2818. [PMID: 37126112 DOI: 10.1007/s12010-023-04508-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2023] [Indexed: 05/02/2023]
Abstract
Phenolic compounds are the major contaminants identified from various industrial effluents, which pose an extreme threat to the environment. Therefore, investigating an effective technique to remove these toxic phenolic compounds from the contaminated environment is very essential. In the present investigation, batch tests were performed to assess the biodegradation of phenol using an indigenous Rhodococcus pyridinivorans strain PDB9T NS-1 encapsulated in a calcium alginate bead system. In order to improve the mechanical stability, silica was added to the cell-embedded Ca-alginate beads. The impact of experimental conditions such as contact time, pH, and initial phenol doses was investigated. The biodegradation of phenol was examined over a wide range of phenol, and the results showed that more than 99.6% degradation was achieved at an initial phenol dose of 1000 mg/L in 70 h at 30 °C. Among the various sorption isotherm tested, the Freundlich isotherm was the best fitted to the experimental data. This behavior indicated a multilayer biosorption process and was controlled by heterogeneous surface energy. Based on an intra-particle diffusion model, internal mass transfer or pore diffusion predominated over exterior mass transfer in controlling the entire phenol biosorption process. The biosorption of phenol onto the cell encapsulated in the Ca-alginate bead follows pseudo-first-order kinetics with a superior phenol biosorption capacity of 155 mg/g of Ca-alginate. Further stability study revealed that the bead could be recycled successfully without any substantial decline in phenol degradation efficiency, indicating that the immobilized microbe possesses exceptional operating stability.
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Affiliation(s)
- Ankita Priyadarshini
- Department of Chemistry, Environmental Science Program, (ITER), Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, -751030, India
| | - Soumya Mishra
- Department of Chemistry, Environmental Science Program, (ITER), Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, -751030, India
| | - Naresh Kumar Sahoo
- Department of Chemistry, Environmental Science Program, (ITER), Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar, Odisha, -751030, India.
| | - Sangeeta Raut
- Centre for Biotechnology, Siksha 'O'Anusandhan (Deemed to be University), Bhubaneswar, India
| | - Achlesh Daverey
- School of Environment & Natural Resources, Doon University, Dehradun, Uttarakhand, 248012, India
| | - Bankim Chandra Tripathy
- Faculty of Chemical Sciences (AcSIR), Department of Hydro and Electrometallurgy, Institute of Minerals and Materials Technology, Bhubaneswar, 751 013, India
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2
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Asranudin, Holilah, Purnomo AS, Bahruji H, Allouss D, El Alaoui-Elbalrhiti I, Subagyo R, Rohmah AA, Prasetyoko D. Hectorite-CTAB-alginate composite beads for water treatment: kinetic, isothermal and thermodynamic studies. RSC Adv 2023; 13:790-801. [PMID: 36686924 PMCID: PMC9809540 DOI: 10.1039/d2ra06934b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 12/19/2022] [Indexed: 01/04/2023] Open
Abstract
Encapsulation of hectorite-modified CTAB with Ca-alginate formed reusable adsorbent beads for wastewater treatment. The thermogravimetric analysis (TGA) investigation indicated excellent thermal stability results for BHec-40 compared to Hec-40. Although the mesoporous surface area of BHec-40 decreased to 79.74 m2 g-1 compared to 224.21 m2 g-1 for Hec-40, the hectorite-CTAB-alginate beads showed high adsorption capacity and stability for methyl orange (MO) adsorption with more than 60% removal after five adsorption-desorption cycles. The influence of pH (3-11), temperature (30, 40, and 50 °C), initial concentration (50-400 mg L-1), and contact time were studied to obtain the kinetics and thermodynamics of adsorption. The outcomes revealed a maximum monolayer adsorption capacity of 117.71 mg g-1 for BHec-40. The kinetics of adsorption demonstrated the suitability of using the pseudo-first-order kinetic model, while the equilibrium adsorption data follows the Langmuir isotherm. Thermodynamic analysis indicates physisorption of MO onto BHec-40. BHec-40 improves the reusability as an adsorbent for the removal of anionic dyes from aqueous media.
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Affiliation(s)
- Asranudin
- Department of Chemistry, Institut Teknologi Sepuluh Nopember (ITS) Surabaya 60111 Indonesia
- Department of Food Science and Technology, Faculty of Agriculture, Halu Oleo University Kendari 93231 Indonesia
| | - Holilah
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency of Indonesia (BRIN) Cibinong 16911 Indonesia
- Department of Food Science and Technology, Faculty of Agriculture, Halu Oleo University Kendari 93231 Indonesia
| | - Adi Setyo Purnomo
- Department of Chemistry, Institut Teknologi Sepuluh Nopember (ITS) Surabaya 60111 Indonesia
| | - Hasliza Bahruji
- Centre of Advanced Material and Energy Sciences, Universiti Brunei Darussalam Gadong Bandar Seri Begawan 1410 Brunei Darussalam
| | - Dalia Allouss
- Laboratoire de Matériaux, Catalyse et Valorisation des Ressources Naturelles, Faculté des Sciences et Techniques, Hassan II University 19 Casablanca Marocco
| | | | - Riki Subagyo
- Department of Chemistry, Institut Teknologi Sepuluh Nopember (ITS) Surabaya 60111 Indonesia
| | - Alya Awinatul Rohmah
- Department of Chemistry, Institut Teknologi Sepuluh Nopember (ITS) Surabaya 60111 Indonesia
| | - Didik Prasetyoko
- Department of Chemistry, Institut Teknologi Sepuluh Nopember (ITS) Surabaya 60111 Indonesia
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3
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Eltaboni F, Singh S, Swanson L, Swift T, Almalki AS. Fluorescence spectroscopy analysis of fly ash removal from aqueous systems: adsorption of alginate to silica and alumina. SOFT MATTER 2022; 18:5687-5698. [PMID: 35861613 DOI: 10.1039/d2sm00558a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Fly ash is a toxic industrial waste, mainly consisting of silica and alumina particles, that has been found discharged into the environment. It is proposed that alginate, a naturally occurring biopolymer, can bind to these minerals and thus play a role in water purification. The binding forces involved in this process consist of weak interactions, such as van der Waals forces and electrostatic interactions. Although the attachment of alginate to mineral surfaces is mainly governed by its carboxylate groups, hydroxyl moieties could play a role in the interaction between the polymer and minerals. This work aims to use the SiO2 and Al2O3 particles as models for fly ash and to show the use of alginate biopolymers (fluorescently labelled with an aminonaphthaline sulfonate fluorophore (AmNS)) to coagulate them. The addition of simple electrolytes like NaCl and CaCl2 encourages the coiling of the polymer chain at high pH values which has an effect on its capability to bind to the inorganic particles. A combination of fluorescence and ICP-MS demonstrated that alginate has a considerable adsorption affinity for Al2O3, whereas it attracts SiO2 weakly. The adsorption process is pH dependent: strong adsorption was observed at low pH values. The dependence of adsorption on the mineral (Al2O3 and SiO2) concentration was also examined under different pH conditions: the adsorption amount was observed to increase by increasing the solid concentration. Adsorption isotherms obtained at low and high mineral concentrations were found to be Henry in type.
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Affiliation(s)
- Fateh Eltaboni
- Department of Chemistry, University of Benghazi, Benghazi, Libya.
| | - Sehaj Singh
- School of Chemistry and Biosciences, University of Bradford, Bradford BD7 1DP, UK
| | - Linda Swanson
- Department of Chemistry, The University of Sheffield, Sheffield S10 2TN, UK
| | - Thomas Swift
- School of Chemistry and Biosciences, University of Bradford, Bradford BD7 1DP, UK
| | - Abdulraheem Sa Almalki
- Department of Chemistry, Faculty of Science, Taif University, Taif, Kingdom of Saudi Arabia
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4
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Piras CC, Mahon CS, Genever PG, Smith DK. Shaping and Patterning Supramolecular Materials─Stem Cell-Compatible Dual-Network Hybrid Gels Loaded with Silver Nanoparticles. ACS Biomater Sci Eng 2022; 8:1829-1840. [PMID: 35364810 PMCID: PMC9092345 DOI: 10.1021/acsbiomaterials.1c01560] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
![]()
Hydrogels
with spatio-temporally
controlled properties are appealing
materials for biological and pharmaceutical applications. We make
use of mild acidification protocols to fabricate hybrid gels using
calcium alginate in the presence of a preformed thermally triggered
gel based on a low-molecular-weight gelator (LMWG) 1,3:2:4-di(4-acylhydrazide)-benzylidene
sorbitol (DBS-CONHNH2). Nonwater-soluble calcium carbonate
slowly releases calcium ions over time when exposed to an acidic pH,
triggering the assembly of the calcium alginate gel network. We combined
the gelators in different ways: (i) the LMWG was used as a template
to spatially control slow calcium alginate gelation within preformed
gel beads, using glucono-δ-lactone (GdL) to lower the pH; (ii)
the LMWG was used as a template to spatially control slow calcium
alginate gelation within preformed gel trays, using diphenyliodonium
nitrate (DPIN) as a photoacid to lower the pH, and spatial resolution
was achieved by masking. The dual-network hybrid gels display highly
tunable properties, and the beads are compatible with stem cell growth.
Furthermore, they preserve the LMWG function of inducing in situ silver
nanoparticle (AgNP) formation, which provides the gels with antibacterial
activity. These gels have potential for eventual regenerative medicine
applications in (e.g.) bone tissue engineering.
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Affiliation(s)
- Carmen C Piras
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Clare S Mahon
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Paul G Genever
- Department of Biology, University of York, Heslington, York YO10 5DD, United Kingdom
| | - David K Smith
- Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
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Chen H, Abdullayev A, Bekheet MF, Schmidt B, Regler I, Pohl C, Vakifahmetoglu C, Czasny M, Kamm PH, Meyer V, Gurlo A, Simon U. Extrusion-based additive manufacturing of fungal-based composite materials using the tinder fungus Fomes fomentarius. Fungal Biol Biotechnol 2021; 8:21. [PMID: 34933689 PMCID: PMC8693477 DOI: 10.1186/s40694-021-00129-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 12/04/2021] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Recent efforts in fungal biotechnology aim to develop new concepts and technologies that convert renewable plant biomass into innovative biomaterials. Hereby, plant substrates become metabolized by filamentous fungi to transform them into new fungal-based materials. Current research is thus focused on both understanding and optimizing the biology and genetics underlying filamentous fungal growth and on the development of new technologies to produce customized fungal-based materials. RESULTS This manuscript reports the production of stable pastes, composed of Fomes fomentarius mycelium, alginate and water with 71 wt.% mycelium in the solid content, for additive manufacturing of fungal-based composite materials. After printing complex shapes, such as hollow stars with up to 39 mm in height, a combination of freeze-drying and calcium-crosslinking processes allowed the printed shapes to remain stable even in the presence of water. The printed objects show low bulk densities of 0.12 ± 0.01 g/cm3 with interconnected macropores. CONCLUSIONS This work reports for the first time the application of mycelium obtained from the tinder fungus F. fomentarius for an extrusion-based additive manufacturing approach to fabricate customized light-weight 3D objects. The process holds great promise for developing light-weight, stable, and porous fungal-based materials that could replace expanded polystyrene produced from fossil resources.
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Affiliation(s)
- Huaiyou Chen
- Chair of Advanced Ceramic Materials, Institute of Material Science and Technology, Faculty III Process Sciences, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Amanmyrat Abdullayev
- Chair of Advanced Ceramic Materials, Institute of Material Science and Technology, Faculty III Process Sciences, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Maged F Bekheet
- Chair of Advanced Ceramic Materials, Institute of Material Science and Technology, Faculty III Process Sciences, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Bertram Schmidt
- Chair of Applied and Molecular Microbiology, Institute of Biotechnology, Faculty III Process Sciences, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Isabel Regler
- Chair of Applied and Molecular Microbiology, Institute of Biotechnology, Faculty III Process Sciences, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Carsten Pohl
- Chair of Applied and Molecular Microbiology, Institute of Biotechnology, Faculty III Process Sciences, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Cekdar Vakifahmetoglu
- Department of Materials Science and Engineering, Izmir Institute of Technology, 35430, Urla, Izmir, Turkey
| | - Mathias Czasny
- Chair of Advanced Ceramic Materials, Institute of Material Science and Technology, Faculty III Process Sciences, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Paul H Kamm
- Institute of Applied Materials, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Vera Meyer
- Chair of Applied and Molecular Microbiology, Institute of Biotechnology, Faculty III Process Sciences, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Aleksander Gurlo
- Chair of Advanced Ceramic Materials, Institute of Material Science and Technology, Faculty III Process Sciences, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Ulla Simon
- Chair of Advanced Ceramic Materials, Institute of Material Science and Technology, Faculty III Process Sciences, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany.
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6
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Dangi YR, Bediako JK, Lin X, Choi JW, Lim CR, Song MH, Han M, Yun YS. Polyethyleneimine impregnated alginate capsule as a high capacity sorbent for the recovery of monovalent and trivalent gold. Sci Rep 2021; 11:17836. [PMID: 34497318 PMCID: PMC8426373 DOI: 10.1038/s41598-021-97228-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 08/23/2021] [Indexed: 11/09/2022] Open
Abstract
For the first time, a polyethyleneimine-impregnated alginate capsule (PEIIAC) with a high adsorption capacity is developed for the recovery of monovalent and trivalent gold from an acidic solution. The strategy results in a new type of adsorbent, polyethyleneimine impregnated alginate capsule (PEIIAC) with a core-shell structure having a large number of amine groups as cationic binding site, facilitating maximum uptake of anionic auric chloride. The maximum uptake of PEIIAC was 3078 and 929 mg/g for Au (III) and Au (I), respectively, are recordable compared to other reported adsorbents to date. The as-prepared material was executed to check the sorption efficacy for Au (III) and Au (I) in the pH range of 1-12. With an increment in pH, the uptake capacity for Au (III) increased, while the uptake capacity for Au (I) decreased. The FTIR, XRD, and XPS studies revealed that the gold adsorption mechanism includes ionic interactions and reduction, wherein the amine, hydroxyl, and carboxyl groups are involved. The capsule showed a higher adsorption efficiency than other reported sorbents, making the material applicable in acidic solutions for the recovery of Au (I) and Au (III).
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Affiliation(s)
- Yub Raj Dangi
- Division of Semiconductor and Chemical Engineering, Jeonbuk National University (Formerly Chonbuk National University), Jeonju, Jeonbuk, 54896, South Korea.,Department of Chemistry, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal
| | - John Kwame Bediako
- Division of Semiconductor and Chemical Engineering, Jeonbuk National University (Formerly Chonbuk National University), Jeonju, Jeonbuk, 54896, South Korea.,School of Engineering Sciences, University of Ghana, Legon, Ghana
| | - Xiaoyu Lin
- Division of Semiconductor and Chemical Engineering, Jeonbuk National University (Formerly Chonbuk National University), Jeonju, Jeonbuk, 54896, South Korea
| | - Jong-Won Choi
- Division of Semiconductor and Chemical Engineering, Jeonbuk National University (Formerly Chonbuk National University), Jeonju, Jeonbuk, 54896, South Korea
| | - Che-Ryong Lim
- Division of Semiconductor and Chemical Engineering, Jeonbuk National University (Formerly Chonbuk National University), Jeonju, Jeonbuk, 54896, South Korea
| | - Myung-Hee Song
- Division of Semiconductor and Chemical Engineering, Jeonbuk National University (Formerly Chonbuk National University), Jeonju, Jeonbuk, 54896, South Korea
| | - Minhee Han
- Division of Semiconductor and Chemical Engineering, Jeonbuk National University (Formerly Chonbuk National University), Jeonju, Jeonbuk, 54896, South Korea
| | - Yeoung-Sang Yun
- Division of Semiconductor and Chemical Engineering, Jeonbuk National University (Formerly Chonbuk National University), Jeonju, Jeonbuk, 54896, South Korea.
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7
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Gao X, Guo C, Hao J, Zhao Z, Long H, Li M. Adsorption of heavy metal ions by sodium alginate based adsorbent-a review and new perspectives. Int J Biol Macromol 2020; 164:4423-4434. [DOI: 10.1016/j.ijbiomac.2020.09.046] [Citation(s) in RCA: 124] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/27/2020] [Accepted: 09/07/2020] [Indexed: 12/18/2022]
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8
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Qi N, Zhao H, Qin Y, Wang Q, Wang G, Li Y. An innovative strategy for synchronous treatment of combined heavy metal and organic pollutants through polysaccharide gel encapsulating S 2. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 742:140601. [PMID: 32721736 DOI: 10.1016/j.scitotenv.2020.140601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/14/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
In many industrial fields, treatment of composite contaminations involving inorganic heavy metal ions and organic pollutants simultaneously remains a tremendous challenge. In this paper, an innovative strategy based on the gelation process of Sodium Alginate (SA) was proposed for synchronous treatment of composite pollutants. Through a pre-gelation step, SA gel balls encapsulated with S2- (SA/S2- gel) were formed and immersed into polluted solutions containing Pb2+/Cd2+ and Cd2+/dye. The removal efficiency of Pb2+/Cd2+ by SA/S2- gel were both increased compared with pure SA gel. The adsorbed Pb2+/Cd2+ was in-situ transformed into PbS/CdS quantum dots (QDs) possessing photo-catalytic activity, which induced the degradation of dyes under UV irradiation. In this respect, the proposed SA/S2- system might provide a high-performance and energy-saving way for comprehensive treatment of inorganic heavy metal and organic industrial pollutants.
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Affiliation(s)
- Na Qi
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 South Road of ShanDa, Jinan, Shandong 250100, PR China
| | - Hui Zhao
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 South Road of ShanDa, Jinan, Shandong 250100, PR China
| | - Yan Qin
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 South Road of ShanDa, Jinan, Shandong 250100, PR China
| | - Qiaozhi Wang
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 South Road of ShanDa, Jinan, Shandong 250100, PR China
| | - Guojie Wang
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 South Road of ShanDa, Jinan, Shandong 250100, PR China
| | - Ying Li
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, 27 South Road of ShanDa, Jinan, Shandong 250100, PR China.
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9
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Fernández B, Santos-Echeandía J, Rivera-Hernández JR, Garrido S, Albentosa M. Mercury interactions with algal and plastic microparticles: Comparative role as vectors of metals for the mussel, Mytilus galloprovincialis. JOURNAL OF HAZARDOUS MATERIALS 2020; 396:122739. [PMID: 32388184 DOI: 10.1016/j.jhazmat.2020.122739] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/12/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
The adsorption and desorption of Hg onto and from microplastics (MP) and microalgae (MA) were investigated, and fitted using pseudo-first-order and pseudo-second order kinetics models. Then, the potential role of MP as vector for the entrance and accumulation of Hg (MP-Hg) in comparison to natural pathways (via MA -MA-Hg-, and dissolved -WB-Hg-) was investigated in mussel. Mussels were exposed to a single dose of Hg (2375 ng ind-1) for 4 h. Although the clearance of MP-Hg was relevant (82 %), it was lower than that of MA (95 %) and MA-Hg (94 %). The amount of the Hg accumulated and eliminated was higher in mussels exposed to MP-Hg (1417 ng Hg) than in those exposed to MA-Hg (882 ng Hg) and WB-Hg (1074 ng Hg). However, Hg accumulation was similar in the three mussel groups (≈800 ng Hg). This was related to the fast elimination of Hg still attached to MP by MP-Hg mussels. Hg was mainly accumulated in digestive gland in MA-Hg and MP-Hg mussels, and in gills in WB-Hg mussels. Overall, the results indicated that MP facilitated the entrance of Hg in mussel but also promoted Hg elimination, which could limit the toxicological risk of Hg adsorbed onto MP.
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Affiliation(s)
- Beatriz Fernández
- Spanish Institute of Oceanography (IEO), Oceanographic Centre of Murcia, C/Varadero, 1, 30740 San Pedro del Pinatar, Murcia, Spain
| | - Juan Santos-Echeandía
- Spanish Institute of Oceanography (IEO), Oceanographic Centre of Murcia, C/Varadero, 1, 30740 San Pedro del Pinatar, Murcia, Spain
| | - José R Rivera-Hernández
- Universidad Politécnica de Sinaloa, Unidad Académica de Ingeniería en Tecnología Ambiental, Carretera Municipal Libre Mazatlán-Higueras Km 3, 82199 Mazatlán, Sinaloa, Mexico
| | - Soledad Garrido
- Spanish Institute of Oceanography (IEO), Oceanographic Centre of Murcia, C/Varadero, 1, 30740 San Pedro del Pinatar, Murcia, Spain
| | - Marina Albentosa
- Spanish Institute of Oceanography (IEO), Oceanographic Centre of Murcia, C/Varadero, 1, 30740 San Pedro del Pinatar, Murcia, Spain.
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10
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Supriya, Pal CK, Sengupta S, Basu JK. One pot synthesis of nano Ag in calcium alginate beads and its catalytic application in
p
‐Nitrophenol
reduction with kinetic parameter estimation and model fitting. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Supriya
- Department of Chemical Engineering Indian Institute of Technology Kharagpur Kharagpur India
| | - Chandan K. Pal
- Department of Chemistry Scottish Church College, University of Calcutta Calcutta India
| | - Sonali Sengupta
- Department of Chemical Engineering Indian Institute of Technology Kharagpur Kharagpur India
| | - Jayanta K. Basu
- Department of Chemical Engineering Indian Institute of Technology Kharagpur Kharagpur India
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11
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Piras CC, Mahon CS, Smith DK. Self-Assembled Supramolecular Hybrid Hydrogel Beads Loaded with Silver Nanoparticles for Antimicrobial Applications. Chemistry 2020; 26:8452-8457. [PMID: 32294272 PMCID: PMC7384024 DOI: 10.1002/chem.202001349] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/08/2020] [Indexed: 12/28/2022]
Abstract
This Full Paper reports the formation of silver (Ag) NPs within spatially resolved two-component hydrogel beads, which combine a low-molecular-weight gelator (LMWG) DBS-CONHNH2 and a polymer gelator (PG) calcium alginate. The AgNPs are formed through in situ reduction of AgI , with the resulting nanoparticle-loaded gels being characterised in detail. The antibacterial activity of the nanocomposite gel beads was tested against two drug-resistant bacterial strains, often associated with hospital-acquired infections: vancomycin-resistant Enterococcus faecium (VRE) and Pseudomonas aeruginosa (PA14), and the AgNP-loaded gels showed good antimicrobial properties against both types of bacteria. It is suggested that the gel bead format of these AgNP-loaded hybrid hydrogels makes them promising versatile materials for potential applications in orthopaedics or wound healing.
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Affiliation(s)
- Carmen C. Piras
- Department of ChemistryUniversity of YorkHeslingtonYorkYO10 5DDUK
| | - Clare S. Mahon
- Department of ChemistryUniversity of YorkHeslingtonYorkYO10 5DDUK
| | - David K. Smith
- Department of ChemistryUniversity of YorkHeslingtonYorkYO10 5DDUK
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12
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Abstract
Due to the progressive fall of the ore grades and the increasingly refractory composition of minerals, concentrating plants have increased which has led to an increase in the generation of tailings. Tailings, especially those obtained in the past, have remaining copper and other valuable species in quantities that can potentially be recovered, such as gold, silver, vanadium, and rare earth elements which transforms this abundant waste into a potential source of precious or strategic metals for secondary mining. One of the techniques of solid–liquid separation that processes solutions with low concentrations of metals corresponds to adsorption, and more recently biosorption, which is based on the use of biological matrices that do not constitute an environmental liability after application. Biosorption occurs as a consequence of the wide variety of active functional groups present in different types of biomass. Bacterial, fungal, plant, and algal biomasses have been described as biosorbents, mainly for the treatment of diluted and simple solutions. This work aims to recover copper from leached tailings using biomass of the red algae Gracilaria chilensis as a biosorbent. The tailing samples were taken from an abandoned deposit, in the north of Chile, and after an acid leaching copper was biosorbed, kinetics of adsorption and the equilibrium isotherms were studied, applying the Freundlich and Langmuir models. Operational parameters such as adsorbent dose, pH, and initial metal concentration were studied.
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13
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Shehzad H, Ahmed E, Sharif A, Din MI, Farooqi ZH, Nawaz I, Bano R, Iftikhar M. Amino-carbamate moiety grafted calcium alginate hydrogel beads for effective biosorption of Ag(I) from aqueous solution: Economically-competitive recovery. Int J Biol Macromol 2020; 144:362-372. [DOI: 10.1016/j.ijbiomac.2019.12.097] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 12/01/2019] [Accepted: 12/12/2019] [Indexed: 02/06/2023]
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Microwave-mediated synthesis of silver nanoparticles on various metal-alginate composites: evaluation of catalytic activity and thermal stability of the composites in solvent-free acylation reaction of amine and alcohols. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2089-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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15
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Fissaha HT, Nisola GM, Burnea FK, Lee JY, Koo S, Lee SP, Hern K, Chung WJ. Synthesis and application of novel hydroxylated thia-crown ethers as composite ionophores for selective recovery of Ag+ from aqueous sources. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.09.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Santos NTDG, Landers R, da Silva MGC, Vieira MGA. Adsorption of Gold Ions onto Sericin and Alginate Particles Chemically Crosslinked by Proanthocyanidins: a Complete Fixed-Bed Column Study. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04914] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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17
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Adsorption of Ni2+ and Cd2+ from Water by Calcium Alginate/Spent Coffee Grounds Composite Beads. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9214531] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The use of heavy metals in technological applications has led to detrimental effects on human health and the environment. Activated carbon and ion-exchange resins are commonly used to remove pollutants but they are expensive. Therefore, the research of low-cost alternatives derived from natural resources and organic wastes is being considered. The aim of this study considers the use of Calcium Alginate/Spent Coffee Grounds (CA–SCGs) composite beads to adsorb heavy metals from aqueous solutions, particularly, the removal of Ni2+ or Cd2+ at concentrations from 10 ppm to 100 ppm. CA–SCGs beads were made of equal proportions of alginate and spent coffee grounds and compared with calcium alginate beads (CA beads) and spent coffee grounds (SCGs) in terms of capacity and rate of adsorption. Three cycles of adsorption/desorption were done. The beads were characterized by Scanning Electron Microscopy coupled with an energy-dispersive X-ray spectroscopy (SEM–EDX), Fourier-transform infrared spectroscopy (FT–IR), Raman spectroscopy, and point of zero charge. Langmuir, Freundlich, and Sips models, and a pseudo-second-order kinetic equation were used. Sips model showed the best correlation with the adsorption of CA–SCGs beads with capacities of adsorption of 91.18 mg/g for cadmium and 20.96 mg/g for nickel. CA–SCGs beads had a greater adsorption than the CA beads, achieving adsorption percentages close to 100% than alginate alone, showing their effectiveness in heavy metal removal.
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18
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Gutierrez E, Burdiles PA, Quero F, Palma P, Olate-Moya F, Palza H. 3D Printing of Antimicrobial Alginate/Bacterial-Cellulose Composite Hydrogels by Incorporating Copper Nanostructures. ACS Biomater Sci Eng 2019; 5:6290-6299. [DOI: 10.1021/acsbiomaterials.9b01048] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
| | | | | | - Patricia Palma
- Laboratorio de Microbiología Oral, Área Péptidos y Compuestos Antimicrobianos, Facultad de Odontología, Universidad de Chile, Olivos 943, 8380544 Independencia, Chile
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Santos NTDG, da Silva MGC, Vieira MGA. Development of novel sericin and alginate-based biosorbents for precious metal removal from wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:28455-28469. [PMID: 30293102 DOI: 10.1007/s11356-018-3378-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 10/01/2018] [Indexed: 06/08/2023]
Abstract
In this study, two novel low water-soluble sericin and alginate-based biosorbents were successfully developed for precious metal removal from wastewater: sericin and alginate particles chemically crosslinked by proantocyanidins (SAPAs) and sericin, alginate and polyvinyl alcohol particles (SAPVA). The proportions of proantocynidins (PAs) or polyvinyl alcohol (PVA) added to sericin (2.5% w/v) and alginate (2.0% w/v) blend were 0.5, 1.5, 2.5 and 3.5% w/v. Among these concentrations, particles produced with 0.5% w/v of PVA or 2.5% w/v of PAs presented the lowest water solubility percentages (3.74 ± 0.05 and 3.56 ± 0.21%, respectively) and the following metallic affinity order: AuCl4- > PdCl42- > PtCl62- > Ag+. Then, gold biosorption kinetics by SAPAs was evaluated at three gold initial concentrations (72.88, 187.12, and 273.79 mg/L), and its performance was compared to activated carbon adsorbent uptake. The data modeling revealed that the process follows pseudo-first-order kinetics and is mainly controlled by external diffusion. SAPAs before and after gold biosorption (SAPAs-gold) were characterized by scanning electron microscopy coupled with energy dispersive X-ray spectroscopy, optical microscopy, helium pycnometry, mercury porosimetry, N2 physisorption, and Fourier-transform infrared spectroscopy.
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Affiliation(s)
- Nilza Tatiane das Graças Santos
- School of Chemical Engineering, University of Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil
| | - Meuris Gurgel Carlos da Silva
- School of Chemical Engineering, University of Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil
| | - Melissa Gurgel Adeodato Vieira
- School of Chemical Engineering, University of Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-852, Brazil.
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20
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Enhanced Gold Biosorption of Lysinibacillus sphaericus CBAM5 by Encapsulation of Bacteria in an Alginate Matrix. METALS 2019. [DOI: 10.3390/met9080818] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Given its variety of properties, including conductivity and slow corrosion, the industrial uses for gold are increasing dramatically. This means that greater amounts of gold are being released into the environment and that a biological approach to recycling gold is of great interest. Lysinibacillus sphaericus, a bacterium capable of metal accumulation inside the cell and adsorption in the external surface, was encapsulated in an alginate matrix to improve the capture of gold from aqueous media. In this study, L. sphaericus CBAM5 proved to have the greatest potential compared to other strains and, following its encapsulation, the efficiency for the removal of the precious metal, at a concentration of 60 ppm, was 100% after three hours of exposure. It was identified that the alginate spheres with bacteria could also be reused. In fact, an efficiency of 60% was retained after three cycles of utilization. Thus, alginate acts as an adequate immobilization matrix for bacteria as a highly effective gold capture mechanism, which also shows great potential as an alternative for biotechnological applications.
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21
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Gold (III) adsorption from dilute waste solutions onto Amberlite XAD7 resin modified with L-glutamic acid. Sci Rep 2019; 9:8757. [PMID: 31217435 PMCID: PMC6584572 DOI: 10.1038/s41598-019-45249-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 06/04/2019] [Indexed: 11/17/2022] Open
Abstract
The main purpose of this paper was to obtain a material with efficient adsorbing properties and selectivity, to recover the gold (III) from residual diluted solutions resulted from the electroplating process. In this regard, a material was obtained by physico-chemical functionalization of a chemically inert support with functional groups of nitrogen and carboxyl. As a source of functional groups glutamic acid was used, and Amberlite XAD7 type acrylic resin was used as solid support. In order to establish the mechanism of the adsorption process, kinetic, thermodynamic and equilibrium studies were performed. The maximum adsorption capacity of the material has been established, and a gold (III) recovery process has been proposed using thermal decomposition of the exhausted adsorbed material. Main objective of this study was to evaluate an environmental friendly adsorbent material to recover gold from secondary industrial sources.
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22
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Removal of Copper from Water by Adsorption with Calcium-Alginate/Spent-Coffee-Grounds Composite Beads. MATERIALS 2019; 12:ma12030395. [PMID: 30691232 PMCID: PMC6384655 DOI: 10.3390/ma12030395] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 11/17/2022]
Abstract
Calcium Alginate/Spent-Coffee-Grounds composite beads (CA-SCGs beads), which were made of two different proportions of alginate and spent-coffee-grounds (3:3 and 3:10), respectively, were used to adsorb Cu2+ in aqueous solution. These beads were compared with calcium alginate beads (CA beads) and spent-coffee-grounds (SCGs) in terms of adsorption capacity and rate of adsorption. The experiments were carried out at an initial pH of 4 at 30 °C with initial concentrations of Cu2+ from 10 ppm to 100 ppm. Equilibrium data was fitted with Langmuir, Freundlich and Sips models, and a pseudo-second-order kinetic equation. The Sips model showed the best correlation with the experimental values. CA-SCGs (3:3) beads showed a faster adsorption rate versus the CA beads. Also, CA-SCGs (3:3) beads showed a larger capacity of adsorption according to the Sips model, but not in the Langmuir model. FT-IR spectra and SEM images were taken for characterization. This study has shown that the CA-SCGs (3:3) beads have a synergistic effect, combining the capacity of adsorption of CA beads with the kinetics of the SCGs. The CA-SCGs beads have proven to be an effective adsorbent of Cu2+. Therefore, they can provide a use for the SCGs; which are considered pollutants in landfills.
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Pettignano A, Aguilera DA, Tanchoux N, Bernardi L, Quignard F. Alginate: A Versatile Biopolymer for Functional Advanced Materials for Catalysis. STUDIES IN SURFACE SCIENCE AND CATALYSIS 2019. [DOI: 10.1016/b978-0-444-64127-4.00017-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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24
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Gao X, Zhang Y, Zhao Y. Zinc oxide templating of porous alginate beads for the recovery of gold ions. Carbohydr Polym 2018; 200:297-304. [PMID: 30177170 DOI: 10.1016/j.carbpol.2018.07.097] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 07/20/2018] [Accepted: 07/20/2018] [Indexed: 12/01/2022]
Abstract
In this study, a novel porous alginate adsorbent was prepared by zinc oxide templating to selectively adsorb Au (III) ions from multi-metallic solutions under acidic condition. Due to the porous structure of the prepared sorbent, high uptake capacity and fast adsorption kinetics of Au (ІІІ) were achieved, which renders the prepared adsorbent great potential for practical applications in fixed-bed columns for large-scale applications. The adsorption of Au (III) by the prepared adsorbent led to the reduction of Au (III) to metallic gold. Adsorption and reduction of Au (III) in the process are mediated by the ionic and covalent interaction between Au (III) ions and the protonated functional groups on the modified alginate.
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Affiliation(s)
- Xiangpeng Gao
- Department of Process Engineering, Memorial University of Newfoundland, St. John's, A1B 3X5, Canada
| | - Yan Zhang
- Department of Process Engineering, Memorial University of Newfoundland, St. John's, A1B 3X5, Canada.
| | - Yuming Zhao
- Department of Chemistry, Memorial University of Newfoundland, St. John's, A1C 5S7, Canada
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25
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Pawar RR, Lalhmunsiama, Gupta P, Sawant SY, Shahmoradi B, Lee SM. Porous synthetic hectorite clay-alginate composite beads for effective adsorption of methylene blue dye from aqueous solution. Int J Biol Macromol 2018; 114:1315-1324. [DOI: 10.1016/j.ijbiomac.2018.04.008] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/23/2018] [Accepted: 04/03/2018] [Indexed: 11/29/2022]
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26
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Zhan W, Xu C, Qian G, Huang G, Tang X, Lin B. Adsorption of Cu(ii), Zn(ii), and Pb(ii) from aqueous single and binary metal solutions by regenerated cellulose and sodium alginate chemically modified with polyethyleneimine. RSC Adv 2018; 8:18723-18733. [PMID: 35541150 PMCID: PMC9080574 DOI: 10.1039/c8ra02055h] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/11/2018] [Indexed: 11/21/2022] Open
Abstract
In this paper, crosslinked cellulose/sodium alginate (SA) was modified with polyethyleneimine (PEI) as an adsorbent (PEI-RCSA) for comparative and competitive adsorption of Cu(ii), Zn(ii), and Pb(ii) in single and binary aqueous solutions. FTIR, SEM, TGA and specific surface area analysis were used to characterize the structural characteristics of PEI-RCSA. The effects of initial pH of solutions, contact time and initial concentration of heavy metal ions on the adsorption capacity of PEI-RCSA were investigated. The experimental results revealed that the removal of metal ions on the PEI-RCSA was a pH-dependent process with the maximum adsorption capacity at the initial solution pH of 5–6. The adsorption kinetics were followed by a pseudo-second-order kinetics model, and the diffusion properties played a significant role in the control of the adsorption kinetics. Meanwhile, adsorption isotherms were successfully described by the Langmuir model in a single aqueous solution system. The maximum adsorption capacities of PEI-RCSA for Cu(ii), Zn(ii), and Pb(ii) in a single system were 177.1, 110.2 and 234.2 mg g−1, respectively. The binary-component system was better described with the Langmuir competitive isotherm model. The removal efficiencies didn't change significantly when three adsorption–desorption experimental cycles were conducted. All the above results indicated that PEI-RCSA has promising applications in the treatment of toxic metal pollution. Crosslinked cellulose/sodium alginate was modified with polyethyleneimine as an adsorbent (PEI-RCSA) for comparative and competitive adsorption of metal ions.![]()
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Affiliation(s)
- Wei Zhan
- College of Chemistry and Chemical Engineering
- Guangxi University
- Nanning 530004
- China
| | - Chuanhui Xu
- College of Chemistry and Chemical Engineering
- Guangxi University
- Nanning 530004
- China
| | - Guangfu Qian
- College of Chemistry and Chemical Engineering
- Guangxi University
- Nanning 530004
- China
| | - Guohuan Huang
- College of Chemistry and Chemical Engineering
- Guangxi University
- Nanning 530004
- China
| | - Xiuzhen Tang
- College of Chemistry and Chemical Engineering
- Guangxi University
- Nanning 530004
- China
| | - Baofeng Lin
- College of Chemistry and Chemical Engineering
- Guangxi University
- Nanning 530004
- China
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27
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Preparation of Ca-alginate coated nZVI core shell beads for uranium (VI) removal from aqueous solution. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5529-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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A High-Performance Catalytic and Recyclability of Phyto-Synthesized Silver Nanoparticles Embedded in Natural Polymer. J CLUST SCI 2017. [DOI: 10.1007/s10876-017-1280-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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29
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Li M, Buschle-Diller G. Pectin-blended anionic polysaccharide films for cationic contaminant sorption from water. Int J Biol Macromol 2017; 101:481-489. [DOI: 10.1016/j.ijbiomac.2017.03.091] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 03/16/2017] [Indexed: 11/30/2022]
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30
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Dwivedi AD, Permana R, Singh JP, Yoon H, Chae KH, Chang YS, Hwang DS. Tunichrome-Inspired Gold-Enrichment Dispersion Matrix and Its Application in Water Treatment: A Proof-of-Concept Investigation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:19815-19824. [PMID: 28535031 DOI: 10.1021/acsami.7b03064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Tunicate, a filter-feeder in seawater, is able to accumulate high amount of metals using intracellular polymer matrices. The woven pyrogallol structures of tunichrome, a small peptide contained in tunicate's blood cells, is believed to be responsible for selective metal sequestration in tunicates from seawater. However, the intriguing tunichrome matrix is difficult both to harvest from the tunicate and to synthesize massively due to the extreme oxidation sensitivity of the pyrogallol moiety which limits the study scope. Here, we succeeded to mimic tunichrome by conjugating two cheap and naturally occurring components: pyrogallol-5-carboxylic acid (gallic acid) and chitin nanofiber. A tunicate-mimetic infiltration matrix of surface-tailored chitin nanofibers with pyrogallol moieties (CGa) demonstrated the versatility of this strategy in generation of ingenious filtration material, especially for unprecedented fine and clean gold recovery inside of the tunicate-mimetic infiltration matrix (>99%, 533 mg gold per gram weight), which exceeds that of the presently most popular materials. Complexation between pyrogallol on the nanofiber and gold was similar to that of a tunichrome's metal sequestration. Extended X-ray absorption fine structure (EXAFS) spectroscopy and data-fitting elucidated the decreased coordination numbers for Au-Au nearest neighbors, demonstrating that gold coordinated to pyrogallol units, followed by an intramolecular association of Au0. A catalytic reduction of 4-nitrophenol mediated by the tunicate-mimetic matrix with harvested gold revealed excellent recyclability up to 30 cycles (∼95% reduction), which together with methylene blue reduction and antimicrobial performances indicates the versatile characteristics of sustainable processes by the tunichrome mimetics. This strategy opens the door for fast-developing new biomimetic alternatives for precious metal recovery, which is not restricted to gold and can offer a tool for multifaceted soft/hard nanomaterials.
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Affiliation(s)
| | | | - Jitendra Pal Singh
- Advanced Analysis Centre, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
| | | | - Keun Hwa Chae
- Advanced Analysis Centre, Korea Institute of Science and Technology , Seoul 02792, Republic of Korea
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31
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Bio-Reclamation of Strategic and Energy Critical Metals from Secondary Resources. METALS 2017. [DOI: 10.3390/met7060207] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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32
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Biosorption and reduction of Au (III) to gold nanoparticles by thiourea modified alginate. Carbohydr Polym 2017; 159:108-115. [DOI: 10.1016/j.carbpol.2016.11.095] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2016] [Revised: 11/22/2016] [Accepted: 11/29/2016] [Indexed: 11/19/2022]
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33
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Biopolymer matrix for nano-encapsulation of urease – A model protein and its application in urea detection. J Colloid Interface Sci 2017; 490:452-461. [DOI: 10.1016/j.jcis.2016.11.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 11/07/2016] [Accepted: 11/08/2016] [Indexed: 11/22/2022]
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34
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Srivastava SK, Medina-Sánchez M, Schmidt OG. Autonomously propelled microscavengers for precious metal recovery. Chem Commun (Camb) 2017; 53:8140-8143. [DOI: 10.1039/c7cc02605f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We report biogenic micromotor design consisting of porous chalky elongated tubes (∼60 μm length) coated with Fe–Pt for dual functionality i.e. metallic gold formation and rapid isolation.
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Affiliation(s)
| | | | - Oliver G. Schmidt
- Institute for Integrative Nanosciences
- IFW Dresden
- 01069 Dresden
- Germany
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35
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36
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Nastaj J, Przewłocka A, Rajkowska-Myśliwiec M. Biosorption of Ni(II), Pb(II) and Zn(II) on calcium alginate beads: equilibrium, kinetic and mechanism studies. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2016. [DOI: 10.1515/pjct-2016-0052] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The biosorption process of three divalent metal ions – nickel, lead and zinc- from on calcium alginate from aqueous solution was studied, in single component systems. The biosorbent were investigated by Fourier Transform Infrared Spectroscopy. The batch mode experiments of the adsorption process were carried out as a function of pH, initial metal ions concentration, sorbent dosage and contact time. The adsorption influencing parameters for the maximum removal of metal ions were optimized. The experimental data were analyzed using the Langmuir, Freundlich, Langmuir-Freundlich, Koble-Corrigan and Redlich-Peterson models. The kinetic data of biosorption process were evaluated using pseudo-first and pseudo-second order equations. The Weber and Morris model was employed to interpret the metal ions diffusion in biosorption process.
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Affiliation(s)
- Józef Nastaj
- West Pomeranian University of Technology, Szczecin, Department of Chemical Engineering and Environmental Protection Processes, al. Piastów 42, 71-065 Szczecin, Poland
| | - Agata Przewłocka
- West Pomeranian University of Technology, Szczecin, Department of Chemical Engineering and Environmental Protection Processes, al. Piastów 42, 71-065 Szczecin, Poland
| | - Monika Rajkowska-Myśliwiec
- West Pomeranian University of Technology, Szczecin, Department of Toxicology, Papieża Pawła VI/3, 71-459 Szczecin, Poland
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Investigation of the electro-spinnability of alginate solutions containing gold precursor HAuCl4. J Colloid Interface Sci 2016; 483:60-66. [PMID: 27544448 DOI: 10.1016/j.jcis.2016.08.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 08/02/2016] [Accepted: 08/15/2016] [Indexed: 01/20/2023]
Abstract
Alginate nanofibers with an average diameter of 75nm have been prepared by the electrospinning process. In addition, the spinnability of the solutions in the presence of the gold precursor HAuCl4 was investigated. At low concentrations of HAuCl4 well-formed nanofibers were produced, whereas as its concentration increases the nanofibrous mats present an increased number of bead-like defects. Herein, the in situ preparation of gold nanoparticles (Au NPs) is discussed since sodium alginate (SA) acts as the reducing agent and a mechanism is proposed in order to explain the bead-effect as well as the surface morphology of the alginate fibers decorated with Au NPs.
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38
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Li M, Elder T, Buschle-Diller G. Alginate-based polysaccharide beads for cationic contaminant sorption from water. Polym Bull (Berl) 2016. [DOI: 10.1007/s00289-016-1776-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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39
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Lopes M, Abrahim B, Veiga F, Seiça R, Cabral LM, Arnaud P, Andrade JC, Ribeiro AJ. Preparation methods and applications behind alginate-based particles. Expert Opin Drug Deliv 2016; 14:769-782. [DOI: 10.1080/17425247.2016.1214564] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Marlene Lopes
- University of Coimbra, Coimbra, Portugal
- CNC − Center for Neuroscience and Cell Biology, Coimbra, Portugal
| | - Barbara Abrahim
- Department of Pharmaceutics,Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Francisco Veiga
- University of Coimbra, Coimbra, Portugal
- CNC − Center for Neuroscience and Cell Biology, Coimbra, Portugal
| | - Raquel Seiça
- IBILI − Instituto de Imagem Biomédica e Ciências da Vida, Coimbra, Portugal
| | - Lucio Mendes Cabral
- Department of Pharmaceutics,Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - José Carlos Andrade
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde and Instituto Universitário de Ciências da Saúde, Gandra, Portugal
| | - Antonio J. Ribeiro
- University of Coimbra, Coimbra, Portugal
- I3S − Instituto de Investigacão e Inovacão em Saúde, University of Porto, Porto, Portugal
- IBMC − Instituto de Biologia Molecular e Celular, Porto, Portugal
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40
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Wang F, Lu X, Li XY. Selective removals of heavy metals (Pb(2+), Cu(2+), and Cd(2+)) from wastewater by gelation with alginate for effective metal recovery. JOURNAL OF HAZARDOUS MATERIALS 2016; 308:75-83. [PMID: 26808245 DOI: 10.1016/j.jhazmat.2016.01.021] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 01/02/2016] [Accepted: 01/09/2016] [Indexed: 06/05/2023]
Abstract
A novel method that uses the aqueous sodium alginate solution for direct gelation with metal ions is developed for effective removal and recovery of heavy metals from industrial wastewater. The experimental study was conducted on Pb(2+), Cu(2+), and Cd(2+) as the model heavy metals. The results show that gels can be formed rapidly between the metals and alginate in less than 10 min and the gelation rates fit well with the pseudo second-order kinetic model. The optimum dosing ratio of alginate to the metal ions was found to be between 2:1 and 3:1 for removing Pb(2+) and around 4:1 for removing Cu(2+) and Cd(2+) from wastewater, and the metal removal efficiency by gelation increased as the solution pH increased. Alginate exhibited a higher gelation affinity toward Pb(2+) than Cu(2+) and Cd(2+), which allowed a selective removal of Pb(2+) from the wastewater in the presence of Cu(2+) and Cd(2+) ions. Chemical analysis of the gels suggests that the gelation mainly occurred between the metal ions and the -COO(-) and -OH groups on alginate. By simple calcination of the metal-laden gels at 700 °C for 1 h, the heavy metals can be well recovered as valuable resources. The metals obtained after the thermal treatment are in the form of PbO, CuO, and CdO nanopowders with crystal sizes of around 150, 50, and 100 nm, respectively.
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Affiliation(s)
- Fei Wang
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong; School of Environment and Guangzhou Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou 510632, China
| | - Xingwen Lu
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong; Research Center for Environmental Health and Pollution Control, and School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiao-yan Li
- Department of Civil Engineering, The University of Hong Kong, Pokfulam, Hong Kong.
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Dabiri SMH, Lagazzo A, Barberis F, Farokhi M, Finochio E, Pastorino L. Characterization of alginate-brushite in-situ hydrogel composites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:502-510. [PMID: 27287148 DOI: 10.1016/j.msec.2016.04.104] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 04/13/2016] [Accepted: 04/30/2016] [Indexed: 11/24/2022]
Abstract
In the present study alginate-brushite composite hydrogels were in-situ synthetized and characterized with respect to preparation parameters. Specifically, the influence of initial pH value and initial concentration of phosphate precursor on the in-situ fabrication of the composite hydrogel were taken into account. The composite hydrogels were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric (TGA, DTG) and differential thermal analysis (DTA). Finally, the cell viability tests were carried out (MTT) over the incubation time period of 3, 7, and 14days. The results revealed that the formation and the crystalline stability of brushite were highly dependent on the initial pH value. It was shown that as the pH reached to the value of 6, characteristics peaks of brushite appeared in the FTIR spectra. Besides, the XRD and thermal analysis results were in a good accordance with those of FTIR. In addition, the SEM images demonstrated that the plate like brushite was formed inside the alginate matrix. Also, a considerable impact of pH variation on the biocompatibility of samples was noticed so that the majority of samples especially those prepared in the acidic conditions were toxic.
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Affiliation(s)
| | - Alberto Lagazzo
- Department of Civil, Chemical and Environmental Engineering, University of Genoa, Genoa, Italy
| | - Fabrizio Barberis
- Department of Civil, Chemical and Environmental Engineering, University of Genoa, Genoa, Italy
| | - Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Elisabetta Finochio
- Department of Civil, Chemical and Environmental Engineering, University of Genoa, Genoa, Italy
| | - Laura Pastorino
- Department of Informatics, Bioengineering, Robotics, and System Engineering, University of Genoa, Genoa, Italy
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42
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Green synthesis and characterization of alginate nanoparticles and its role as a biosorbent for Cr(VI) ions. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.10.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lengert E, Yashchenok AM, Atkin V, Lapanje A, Gorin DA, Sukhorukov GB, Parakhonskiy BV. Hollow silver alginate microspheres for drug delivery and surface enhanced Raman scattering detection. RSC Adv 2016. [DOI: 10.1039/c6ra02019d] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Multifunctional silver alginate hydrogel microspheres are assembled via a template assisted approach using calcium carbonate cores.
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Affiliation(s)
- Ekaterina Lengert
- Remote Controlled Theranostic Systems Lab
- Institute of Nanostructures and Biosystem
- Saratov State University
- Saratov
- Russia
| | - Alexey M. Yashchenok
- Remote Controlled Theranostic Systems Lab
- Institute of Nanostructures and Biosystem
- Saratov State University
- Saratov
- Russia
| | - Vsevolod Atkin
- Remote Controlled Theranostic Systems Lab
- Institute of Nanostructures and Biosystem
- Saratov State University
- Saratov
- Russia
| | - Ales Lapanje
- Remote Controlled Theranostic Systems Lab
- Institute of Nanostructures and Biosystem
- Saratov State University
- Saratov
- Russia
| | - Dmitry A. Gorin
- Remote Controlled Theranostic Systems Lab
- Institute of Nanostructures and Biosystem
- Saratov State University
- Saratov
- Russia
| | - Gleb B. Sukhorukov
- School of Engineering and Materials Science
- Queen Mary University of London
- London
- UK
| | - Bogdan V. Parakhonskiy
- Remote Controlled Theranostic Systems Lab
- Institute of Nanostructures and Biosystem
- Saratov State University
- Saratov
- Russia
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Wang Q, Liu S, Wang H, Yang Y. In situ pore-forming alginate hydrogel beads loaded with in situ formed nano-silver and their catalytic activity. Phys Chem Chem Phys 2016; 18:12610-5. [DOI: 10.1039/c6cp00872k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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46
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Geetha P, Latha MS, Pillai SS, Koshy M. Nanoalginate based biosorbent for the removal of lead ions from aqueous solutions: Equilibrium and kinetic studies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 122:17-23. [PMID: 26164724 DOI: 10.1016/j.ecoenv.2015.06.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 06/17/2015] [Accepted: 06/22/2015] [Indexed: 06/04/2023]
Abstract
Population explosion, depletion of water resources and prolonged droughts and floods due to climatic change lead to scarcity of pure and hygienic drinking water in most of the developing countries. Recently nanomaterials attained considerable attention as biosorbent for water purification purpose. However difficulties in removing polymeric surfactants and organic solvents used for nanoproduction and instability of the generated nanoparticles limit the scope of this approach in water cleanup. Here, we describe a novel green method for synthesizing polysaccharide nanoparticles in aqueous medium using honey as the capping agent. The highly stable alginate nanoparticles, characterized by various microscopic and spectroscopic techniques, exhibited a maximum uptake capacity of 333 mg g (-1)of Pb(II) ions from aqueous solution. The effect of various parameters such as initial metal concentration, pH, contact time, temperature and adsorbent dose on sorption process was investigated in batch mode technique. The maximum removal percentage was 94.81 at 45 °C and at pH 4.5 in 60 min contact time. The biosorption followed Freundlich model indicating multilayer adsorption and pseudo second order kinetics. The mechanism involves both surface adsorption and pore diffusion. The positive values of ΔH°, ∆S° and the negative value of ΔG°, confirmed the endothermic nature, randomness and spontaneity of biosorption process.
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Affiliation(s)
- P Geetha
- Department of Chemistry, D.B Pampa College, Parumala, Mannar, Kerala, India; Department of Chemistry, Bishop Moore College, Mavelikara, Kerala, India
| | - M S Latha
- Department of Chemistry, S.N. College, Chengannur, Kerala, India.
| | - Saumya S Pillai
- Department of Chemistry, N. S. S. Hindu College, Changanacherry, Kerala, India; Department of Chemistry, Bishop Moore College, Mavelikara, Kerala, India
| | - Mathew Koshy
- Department of Chemistry, Bishop Moore College, Mavelikara, Kerala, India
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Pandey N, Bhatt R. Exiguobacterium mediated arsenic removal and its protective effect against arsenic induced toxicity and oxidative damage in freshwater fish, Channa striata. Toxicol Rep 2015; 2:1367-1375. [PMID: 28962479 PMCID: PMC5598528 DOI: 10.1016/j.toxrep.2015.10.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 09/23/2015] [Accepted: 10/06/2015] [Indexed: 12/20/2022] Open
Abstract
Arsenic is a toxic metalloid existing widely in the environment, and its removal from contaminated water has become a global challenge. The use of bacteria in this regard finds a promising solution. In the present study, Exiguobacterium sp. As-9, which is an arsenic resistant bacterium, was selected with respect to its arsenic removal efficiency. Quantification of arsenic in the water treated with bacterium showed that Exiguobacterium efficiently removed up to 99% of arsenic in less than 20 h. In order to reveal the possible effect of this bacterium in removal of arsenic from water and protecting fishes from the detrimental effects of arsenic, we initiated a range of studies on fresh water fish, Channa striata. It was observed that the fishes introduced into bacteria treated water displayed no symptoms of arsenic toxicity which was marked by a decreased oxidative damage, whereas the fishes exposed to arsenic revealed a significant (p < 0.05) increase in the oxidative stress together with the elevated levels of malondialdehyde. Determination of the bioaccumulation of arsenic in the liver tissues of C. striata using hydride generation atomic absorption spectrophotometry (HG-AAS) revealed an increased As(III) accumulation in the fishes exposed to arsenic whereas the arsenic level in the control and bacteria treated fishes were found below the detectable limit. In conclusion, this study presents the strategies of bacterial arsenic removal with possible directions for future research.
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Key Words
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- Antioxidative enzymes
- Arsenic
- Arsenic removal
- BSM, basal salt medium
- CAT, catalase
- EDX, energy dispersive X-ray spectroscopy
- Exiguobacterium
- FTIR, Fourier transform infrared spectrophotometer
- GOT, glutamic oxaloacetic transaminase
- GPT, glutamic pyruvic transaminase
- GPx, glutathione peroxidase
- HG-AAS, hydride generation atomic absorption spectrophotometer
- MDA, malondialdehyde
- Oxidative damage
- SEM, scanning electron microscopy
- SOD, superoxide dismutase
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Affiliation(s)
- Neha Pandey
- Department of Biotechnology, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, Chhattisgarh 495009, India
| | - Renu Bhatt
- Department of Biotechnology, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur, Chhattisgarh 495009, India
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Song GB, Xu J, Zheng H, Feng Y, Zhang WW, Li K, Ge SS, Li K, Zhang H. Novel Soluble Dietary Fiber-Tannin Self-Assembled Film: A Promising Protein Protective Material. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:5813-5820. [PMID: 26051153 DOI: 10.1021/acs.jafc.5b00192] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this experiment, a natural promising protein protective film was fabricated through soluble dietary fiber (SDF)-tannin nanocluster self-assembly. FT-IR, XRD, and DSC tests were employed to investigate the interaction between the SDF and tannins before and after cross-linking induced by calcium ion. On the other hand, referring to the SEM and TEM results, the self-assembly process of the protein protective film could be indicated as follows: first, calcium ion, with its cross-ability, served as the "nucleus"; SDF and tannins were combined to prepare the nanoscale SDF-tannin clusters; then, the clusters were homogeneously deposited on the surface of protein to form a protective film by self-assembling hydrogen bond between tannin component of clusters as "adhesive" and protein in aqueous solutions under very mild conditions. Film thickness could also be controlled by tannin of different concentrations ranging from 114 to 1384 μm. Antibacterial test and in vitro cytotoxicity test proved that the film had a broad spectrum of antimicrobial properties and excellent cell biocompatibility, respectively, which might open up new applications in the food preservation and biomedical fields.
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Affiliation(s)
- Guo-Bin Song
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, People's Republic of China
| | - Juan Xu
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, People's Republic of China
| | - Hua Zheng
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, People's Republic of China
| | - Ying Feng
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, People's Republic of China
| | - Wen-Wen Zhang
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, People's Republic of China
| | - Kun Li
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, People's Republic of China
| | - Shuang-shuang Ge
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, People's Republic of China
| | - Kai Li
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, People's Republic of China
| | - Hong Zhang
- Research Institute of Resources Insects, Chinese Academy of Forestry, Kunming 650224, People's Republic of China
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Yalçın S, Apak R, Boz İ. Enhanced copper(II) biosorption on SiO2-alginate gel composite: A mechanistic study with surface characterization. KOREAN J CHEM ENG 2015. [DOI: 10.1007/s11814-015-0051-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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Jaikumar D, Sajesh K, Soumya S, Nimal T, Chennazhi K, Nair SV, Jayakumar R. Injectable alginate-O-carboxymethyl chitosan/nano fibrin composite hydrogels for adipose tissue engineering. Int J Biol Macromol 2015; 74:318-26. [DOI: 10.1016/j.ijbiomac.2014.12.037] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 12/16/2014] [Accepted: 12/19/2014] [Indexed: 12/22/2022]
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