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Mal J, Sinharoy A, Lens PNL. Simultaneous removal of lead and selenium through biomineralization as lead selenide by anaerobic granular sludge. JOURNAL OF HAZARDOUS MATERIALS 2021; 420:126663. [PMID: 34329094 DOI: 10.1016/j.jhazmat.2021.126663] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/05/2021] [Accepted: 07/14/2021] [Indexed: 06/13/2023]
Abstract
This study demonstrated the simultaneous removal of lead (Pb) and selenium (Se) as lead selenide biomineralization using anaerobic granular sludge. The microbial community of the granular sludge was first enriched for 140 days in the presence of Pb(II) only, selenate and selenite only, Pb(II)+selenate, and Pb(II)+selenite. In the absence of Se, removal of Pb(II) mainly occurred via biosorption and deposited on the biomass as lead oxide and lead carbonate. The Pb removal efficiency (94% of initial 50 mg L-1) was reduced to 90% and 86% in the presence of selenate and selenite, respectively, due to biosorption. Addition of Pb(II) didn't exert any toxic effect on the Se-reducing microbial community, on the contrary: Pb(II) addition improved the Se removal efficiency for selenate from 85% to 90%, but did not affect selenite removal after 14 d of incubation. The bioreduction of the Se-oxyanions produced elemental Se (Se(0)) and selenide, which later interacted with Pb(II) to produce lead selenide (PbSe). Adsorption of Pb(II) onto the Se(0) nanoparticles and precipitation as the Se(0)-Pb complex might also have contributed to the simultaneous removal of Pb and Se. XPS and XRD analysis further confirmed the immobilization of Pb as PbSe, PbO and PbCO3 in the biomass.
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Affiliation(s)
- Joyabrata Mal
- National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland; Department of Biotechnology, MNNIT Allahabad, Prayagraj 211004, India.
| | - Arindam Sinharoy
- National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland
| | - Piet N L Lens
- National University of Ireland Galway, University Road, H91 TK33 Galway, Ireland
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2
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Jamwal D, Mehta SK. Metal Telluride Nanomaterials: Facile Synthesis, Properties and Applications for Third Generation Devices. ChemistrySelect 2019. [DOI: 10.1002/slct.201803680] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Deepika Jamwal
- Department of Chemistry and Centre of Advanced Studies in Chemistry; Panjab University; Chandigarh 160014 India
- School of Chemistry, Faculty of Basic Sciences; Shoolini University, Solan, H.P.; 173212 India
| | - Surinder Kumar Mehta
- Department of Chemistry and Centre of Advanced Studies in Chemistry; Panjab University; Chandigarh 160014 India
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Fan H, Gao S, Xu Z, Jiao S, Yu Q, Zhang Y, Wang J, Zhang X, Zhao L. A facile and green template-engaged synthesis of PbSe nanotubes with the assistance of Vc. CrystEngComm 2018. [DOI: 10.1039/c8ce00878g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
PbSe nanotubes (NTs) were synthesized through a low cost, facile and green hydrothermal route in combination with the assistance of ascorbic acid.
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Affiliation(s)
- Huaiyun Fan
- School of Materials Science and Engineering
- Harbin Institute of Technology
- China
| | - Shiyong Gao
- School of Materials Science and Engineering
- Harbin Institute of Technology
- China
- Key Laboratory for Photonic and Electric Bandgap Materials
- Ministry of Education
| | - Zhikun Xu
- Key Laboratory for Photonic and Electric Bandgap Materials
- Ministry of Education
- Harbin Normal University
- Harbin
- China
| | - Shujie Jiao
- School of Materials Science and Engineering
- Harbin Institute of Technology
- China
| | - Qi Yu
- School of Materials Science and Engineering
- Shaanxi Sci-Tech University
- Hanzhong 723001
- PR China
| | - Yong Zhang
- School of Materials Science and Engineering
- Harbin Institute of Technology
- China
| | - Jinzhong Wang
- School of Materials Science and Engineering
- Harbin Institute of Technology
- China
| | - Xitian Zhang
- Key Laboratory for Photonic and Electric Bandgap Materials
- Ministry of Education
- Harbin Normal University
- Harbin
- China
| | - Liancheng Zhao
- School of Materials Science and Engineering
- Harbin Institute of Technology
- China
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4
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Jamwal D, Rana D, Singh P, Pathak D, Kalia S, Thakur P, Torino E. Well-defined quantum dots and broadening of optical phonon line from hydrothermal method. RSC Adv 2016. [DOI: 10.1039/c6ra19818j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A versatile and facile methodology is presented for size-controlled, lead telluride nanoparticles in the presence of highly hydrophobic cationic gemini surfactants (12–2–12, 14–2–14 and 16–2–16) as capping/stabilizing agents.
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Affiliation(s)
- Deepika Jamwal
- School of Chemistry
- Faculty of Basic Sciences
- Shoolini University
- Solan
- India
| | - Dolly Rana
- School of Chemistry
- Faculty of Basic Sciences
- Shoolini University
- Solan
- India
| | - Pardeep Singh
- School of Chemistry
- Faculty of Basic Sciences
- Shoolini University
- Solan
- India
| | - Dinesh Pathak
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 53210
- Czech Republic
| | - Susheel Kalia
- Department of Chemistry
- Army Cadet College Wing
- Indian Military Academy Dehradun
- India
| | - Pankaj Thakur
- School of Chemistry
- Faculty of Basic Sciences
- Shoolini University
- Solan
- India
| | - Enza Torino
- Istituto Italiano di Tecnologia (Center for Advanced Biomaterials for Healthcare)
- Naples 80125
- Italy
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5
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Souza ACO, Nascimento AL, de Vasconcelos NM, Jerônimo MS, Siqueira IM, R-Santos L, Cintra DOS, Fuscaldi LL, Pires Júnior OR, Titze-de-Almeida R, Borin MF, Báo SN, Martins OP, Cardoso VN, Fernandes SO, Mortari MR, Tedesco AC, Amaral AC, Felipe MSS, Bocca AL. Activity and in vivo tracking of Amphotericin B loaded PLGA nanoparticles. Eur J Med Chem 2015; 95:267-76. [PMID: 25827397 DOI: 10.1016/j.ejmech.2015.03.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 03/11/2015] [Accepted: 03/12/2015] [Indexed: 10/23/2022]
Abstract
The development of biocompatible polymeric nanoparticles has become an important strategy for optimizing the therapeutic efficacy of many classical drugs, as it may expand their activities, reduce their toxicity, increase their bioactivity and improve biodistribution. In this study, nanoparticles of Amphotericin B entrapped within poly (lactic-co-glycolic) acid and incorporated with dimercaptosuccinic acid (NANO-D-AMB) as a target molecule were evaluated for their physic-chemical characteristics, pharmacokinetics, biocompatibility and antifungal activity. We found high plasma concentrations of Amphotericin B upon treatment with NANO-D-AMB and a high uptake of nanoparticles in the lungs, liver and spleen. NANO-D-AMB exhibited antifungal efficacy against Paracoccidioides brasiliensis and induced much lower cytotoxicity levels compared to D-AMB formulation in vivo and in vitro. Together, these results confirm that NANO-D-AMB improves Amphotericin B delivery and suggest this delivery system as a potential alternative to the use of Amphotericin B sodium deoxycholate.
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Affiliation(s)
- A C O Souza
- Biology Institute, University of Brasília, DF, Brazil
| | | | | | - M S Jerônimo
- Biology Institute, University of Brasília, DF, Brazil
| | - I M Siqueira
- Biology Institute, University of Brasília, DF, Brazil
| | - L R-Santos
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, DF, Brazil
| | - D O S Cintra
- Biology Institute, University of Brasília, DF, Brazil
| | - L L Fuscaldi
- Biotechnology Department, Health Sciences Faculty, University of Brasília, DF, Brazil
| | | | - R Titze-de-Almeida
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, DF, Brazil
| | - M F Borin
- Biotechnology Department, Health Sciences Faculty, University of Brasília, DF, Brazil
| | - S N Báo
- Biology Institute, University of Brasília, DF, Brazil
| | - O P Martins
- Chemistry Department of FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - V N Cardoso
- Pharmacy Department, Federal University of Minas Gerais, MG, Brazil
| | - S O Fernandes
- Pharmacy Department, Federal University of Minas Gerais, MG, Brazil
| | - M R Mortari
- Biology Institute, University of Brasília, DF, Brazil
| | - A C Tedesco
- Chemistry Department of FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - A C Amaral
- Biotechnology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, GO, Brazil.
| | - M S S Felipe
- Biology Institute, University of Brasília, DF, Brazil; Genomic Science and Biotechnology Post-Graduate Program, Catholic University of Brasília, DF, Brazil
| | - A L Bocca
- Biology Institute, University of Brasília, DF, Brazil
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Choi HM, Ji IA, Bang JH. Metal selenides as a new class of electrocatalysts for quantum dot-sensitized solar cells: a tale of Cu(1.8)Se and PbSe. ACS APPLIED MATERIALS & INTERFACES 2014; 6:2335-2343. [PMID: 24490774 DOI: 10.1021/am404355m] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The development of a Pt-free, highly active electrocatalyst for a counter electrode (CE) is vital to the construction of highly efficient quantum dot-sensitized solar cells (QDSSCs). As an alternative to Pt, the use of various metal sulfides, such as Cu2S, CoS, and PbS, has been successfully demonstrated; however, the studies on the utilization of non-sulfide materials have been scarcely reported. In this regard, we examined eight different types of binary metal selenides as new candidate materials, and found that the electrocatalytic activity of Cu1.8Se and PbSe toward polysulfide reduction was superior to that of Pt. In depth investigation into these two materials further revealed that, while the electrocatalytic activity of both metal selenides surpasses that of Pt, the long-term utilization of the PbSe CE is hindered by the formation of PbO on the surface of PbSe, which is attributed to the instability of PbSe under air. Unlike PbSe, Cu1.8Se was found to be chemically stable with a polysulfide electrolyte and was even better than Cu2S, a commonly used CE material for QDSSCs. Using the Cu1.8Se CE, we obtained a power conversion efficiency of 5.0% for CdS/CdSe-sensitized solar cells, which was an efficiency almost twice that obtained from Pt CE. This work provides a new application for metal selenides, which have been traditionally utilized as sensitizers for QDSSCs.
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Affiliation(s)
- Hye Mi Choi
- Department of Bionanotechnology and ‡Department of Chemistry and Applied Chemistry, Hanyang University , 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Kyeonggi-do 426-791, Republic of Korea
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