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Rilievo G, Cencini A, Cecconello A, Currò S, Bortoletti M, Leszczyńska K, Górska S, Fasolato L, Tonolo F, de Almeida Roger J, Vianello F, Magro M. Interactions between prokaryotic polysaccharides and colloidal magnetic nanoparticles for bacteria removal: A strategy for circumventing antibiotic resistance. Int J Biol Macromol 2024; 274:133415. [PMID: 38925181 DOI: 10.1016/j.ijbiomac.2024.133415] [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] [Received: 04/14/2024] [Revised: 06/15/2024] [Accepted: 06/23/2024] [Indexed: 06/28/2024]
Abstract
Highly stable, colloidal iron oxide nanoparticles with an oxyhydroxide-like surface were used as bacteria-capturing nano-baits. Peptidoglycan isolated from Listeria spp was used as bacteria polysaccharide model, and the nanoparticle binding was characterized showing a Langmuir isotherm constant, KL, equal to 50 ± 3 mL mg-1. The chemical affinity was further supported by dynamic light scattering, transmission electron microscopy, and infrared and UV-Vis data, pointing at the occurrence of extended, coordinative multiple point bindings. The interaction with Gram (+) (Listeria spp) and Gram (-) (Aeromonas veronii) bacteria was shown to be effective and devoid of any toxic effect. Moreover, a real sample, containing a population of several oligotrophic bacteria strains, was incubated with 1 g L-1 of nanoparticle suspension, in the absence of agitation, showing a 100 % capture efficiency, according to plate count. A nanoparticle regeneration method was developed, despite the known irreversibility of such bacterial-nanosurface binding, restoring the bacteria capture capability. This nanomaterial represents a competitive option to eliminate microbiological contamination in water as an alternative strategy to antibiotics, aimed at reducing microbial resistance dissemination. Finally, beyond their excellent features in terms of colloidal stability, binding performances, and biocompatibility this nanoparticle synthesis is cost effective, scalable, and environmentally sustainable.
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Affiliation(s)
- Graziano Rilievo
- Department of Comparative Biomedicine and Food Science, University of Padova, Italy
| | - Aura Cencini
- Department of Comparative Biomedicine and Food Science, University of Padova, Italy
| | - Alessandro Cecconello
- Department of Comparative Biomedicine and Food Science, University of Padova, Italy.
| | - Sarah Currò
- Department of Comparative Biomedicine and Food Science, University of Padova, Italy
| | - Martina Bortoletti
- Department of Comparative Biomedicine and Food Science, University of Padova, Italy
| | - Katarzyna Leszczyńska
- Microbiome Immunobiology Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy Polish Academy of Sciences, Poland
| | - Sabina Górska
- Microbiome Immunobiology Laboratory, Hirszfeld Institute of Immunology and Experimental Therapy Polish Academy of Sciences, Poland
| | - Luca Fasolato
- Department of Comparative Biomedicine and Food Science, University of Padova, Italy
| | - Federica Tonolo
- Department of Comparative Biomedicine and Food Science, University of Padova, Italy
| | | | - Fabio Vianello
- Department of Comparative Biomedicine and Food Science, University of Padova, Italy
| | - Massimiliano Magro
- Department of Comparative Biomedicine and Food Science, University of Padova, Italy.
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Chaiyarat A, Saejung C. Continuous valorization of food waste and oily food waste using bacteria-pumice and bacteria-smectite nanocomposites: Alternative cell immobilization and zooplankton lifespan impact. BIORESOURCE TECHNOLOGY 2024; 400:130694. [PMID: 38614149 DOI: 10.1016/j.biortech.2024.130694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/08/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Recycling waste into commercial products is a profitable strategy but the lifetime of immobilized cells for long-term waste treatment remains a problem. This study presents alternative cell immobilization methods for valorizing food waste (FW) and oily food waste (OFW) to microbial carotenoids and proteins. Carriers (pumice or smectite), magnetite nanoparticles, and isolated photosynthetic bacteria were integrated to obtain magnetically recoverable bacteria-pumice and bacteria-smectite nanocomposites. After recycling five batches (50 d), chemical oxygen demand removal from FW reached 76% and 78% with the bacteria-pumice and bacteria-smectite nanocomposite treatments, respectively, and oil degradation in OFW reached 71% and 62%, respectively. Destructive changes did not occur, suggesting the durability of nanocomposites. The used nanocomposites had no impact on the lifespan of Moina macrocopa or water quality as assessed by toxicity analysis. Bacteria-pumice and bacteria-smectite nanocomposites are efficient for food waste recycling and do not require secondary treatment before being discharged into the environment.
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Affiliation(s)
- Anuwat Chaiyarat
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Chewapat Saejung
- Department of Microbiology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
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Barbosa JRM, Santos ASGG, Viana AT, Gonçalves AG, Nunes OC, Pereira MFR, Soares OSGP. Carbon-based materials for water disinfection and heavy metals removal. ENVIRONMENTAL TECHNOLOGY 2024; 45:1810-1828. [PMID: 36469607 DOI: 10.1080/09593330.2022.2154173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
The presence of heavy metals and/or harmful bacteria in drinking water represents significant risks to human health. This study aimed to develop a low-cost water treatment technology using synthesized nanocomposites with metal nanoparticles supported on activated carbon (AC) for bacteria and heavy metal removal. In addition, the performance of the developed nanomaterials was compared with that of commercial materials - carbon fibers of three different typologies. The chemical and textural properties of all tested materials were characterized. To simulate a technology to be applied in a water outlet point, removal tests were carried out in a continuous system using suspensions of Escherichia coli and/or Staphylococcus aureus, wherein the contact time with the two phases was minimal (1 min). The obtained results revealed that iron and copper oxides supported on AC with a calcination treatment (CuFeO/AC-C) was the nanocomposite with the best performance, achieving a 6 log reduction for both bacteria in the same suspension up to 9 h operation. A mix of bacteria and heavy metals, simulating a real water, was treated with CuFeO/AC-C obtaining a 6 log reduction of bacteria, a Pb2+ removal >99.9% and Cd2+ removal between 97 and 98% over 180 passage times.
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Affiliation(s)
- José R M Barbosa
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Universidade do Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - A Sofia G G Santos
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Universidade do Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - A T Viana
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Universidade do Porto, Porto, Portugal
| | | | - Olga C Nunes
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Universidade do Porto, Porto, Portugal
| | - M Fernando R Pereira
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Universidade do Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - O Salomé G P Soares
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Universidade do Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
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Shatan AB, Patsula V, Dydowiczová A, Gunár K, Velychkivska N, Hromádková J, Petrovský E, Horák D. Cationic Polymer-Coated Magnetic Nanoparticles with Antibacterial Properties: Synthesis and In Vitro Characterization. Antibiotics (Basel) 2021; 10:1077. [PMID: 34572658 PMCID: PMC8471980 DOI: 10.3390/antibiotics10091077] [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: 07/28/2021] [Revised: 08/31/2021] [Accepted: 09/01/2021] [Indexed: 12/04/2022] Open
Abstract
Uniformly sized magnetite nanoparticles (Dn = 16 nm) were prepared by a thermal decomposition of Fe(III) oleate in octadec-1-ene and stabilized by oleic acid. The particles were coated with Sipomer PAM-200 containing both phosphate and methacrylic groups available for the attachment to the iron oxide and at the same time enabling (co)polymerization of 2-(dimethylamino)ethyl methacrylate and/or 2-tert-butylaminoethyl methacrylate at two molar ratios. The poly[2-(dimethylamino)ethyl methacrylate] (PDMAEMA) and poly[2-(dimethylamino)ethyl methacrylate-co-2-tert-butylaminoethyl methacrylate] [P(DMAEMA-TBAEMA)] polymers and the particles were characterized by 1H NMR spectroscopy, size-exclusion chromatography, transmission electron microscopy, dynamic light scattering, thermogravimetric analysis, magnetometry, and ATR FTIR and atomic absorption spectroscopy. The antimicrobial effect of cationic polymer-coated magnetite nanoparticles tested on both Escherichia coli and Staphylococcus aureus bacteria was found to be time- and dose-responsive. The P(DMAEMA-TBAEMA)-coated magnetite particles possessed superior biocidal properties compared to those of P(DMAEMA)-coated one.
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Affiliation(s)
- Anastasiia B. Shatan
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic; (A.B.S.); (V.P.); (A.D.); (K.G.); (N.V.); (J.H.)
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 40 Prague 2, Czech Republic
| | - Vitalii Patsula
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic; (A.B.S.); (V.P.); (A.D.); (K.G.); (N.V.); (J.H.)
| | - Aneta Dydowiczová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic; (A.B.S.); (V.P.); (A.D.); (K.G.); (N.V.); (J.H.)
| | - Kristýna Gunár
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic; (A.B.S.); (V.P.); (A.D.); (K.G.); (N.V.); (J.H.)
| | - Nadiia Velychkivska
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic; (A.B.S.); (V.P.); (A.D.); (K.G.); (N.V.); (J.H.)
| | - Jiřina Hromádková
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic; (A.B.S.); (V.P.); (A.D.); (K.G.); (N.V.); (J.H.)
| | - Eduard Petrovský
- Institute of Geophysics, Czech Academy of Sciences, Boční II/1401, 141 31 Prague 4, Czech Republic;
| | - Daniel Horák
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Czech Republic; (A.B.S.); (V.P.); (A.D.); (K.G.); (N.V.); (J.H.)
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