1
|
Duman H, Eker F, Akdaşçi E, Witkowska AM, Bechelany M, Karav S. Silver Nanoparticles: A Comprehensive Review of Synthesis Methods and Chemical and Physical Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1527. [PMID: 39330683 PMCID: PMC11434896 DOI: 10.3390/nano14181527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2024] [Revised: 09/14/2024] [Accepted: 09/18/2024] [Indexed: 09/28/2024]
Abstract
Recently, silver nanoparticles (NPs) have attracted significant attention for being highly desirable nanomaterials in scientific studies as a result of their extraordinary characteristics. They are widely known as effective antibacterial agents that are capable of targeting a wide range of pathogens. Their distinct optical characteristics, such as their localized surface plasmon resonance, enlarge their utilization, particularly in the fields of biosensing and imaging. Also, the capacity to control their surface charge and modify them using biocompatible substances offers improved durability and specific interactions with biological systems. Due to their exceptional stability and minimal chemical reactivity, silver NPs are highly suitable for a diverse array of biological applications. These NPs are produced through chemical, biological, and physical processes, each of which has distinct advantages and disadvantages. Chemical and physical techniques often encounter issues with complicated purification, reactive substances, and excessive energy usage. However, eco-friendly biological approaches exist, even though they require longer processing times. A key factor affecting the stability, size distribution, and purity of the NPs is the synthesis process selected. This review focuses on how essential it is to choose the appropriate synthesis method in order to optimize the characteristics and use of silver NPs.
Collapse
Affiliation(s)
- Hatice Duman
- Department of Molecular Biology and Genetics, Çanakkale Onsekiz Mart University, Çanakkale 17100, Türkiye; (H.D.); (F.E.); (E.A.)
| | - Furkan Eker
- Department of Molecular Biology and Genetics, Çanakkale Onsekiz Mart University, Çanakkale 17100, Türkiye; (H.D.); (F.E.); (E.A.)
| | - Emir Akdaşçi
- Department of Molecular Biology and Genetics, Çanakkale Onsekiz Mart University, Çanakkale 17100, Türkiye; (H.D.); (F.E.); (E.A.)
| | - Anna Maria Witkowska
- Department of Food Biotechnology, Medical University of Bialystok, 15-089 Bialystok, Poland;
| | - Mikhael Bechelany
- Institut Européen des Membranes (IEM), UMR 5635, University of Montpellier, ENSCM, CNRS, F-34095 Montpellier, France
- Functional Materials Group, Gulf University for Science and Technology (GUST), Masjid Al Aqsa Street, Mubarak Al-Abdullah 32093, Kuwait
| | - Sercan Karav
- Department of Molecular Biology and Genetics, Çanakkale Onsekiz Mart University, Çanakkale 17100, Türkiye; (H.D.); (F.E.); (E.A.)
| |
Collapse
|
2
|
Lima BGA, Silva RR, Meira HM, Durval IJB, Macedo Bezerra Filho C, Silva TAL, Sarubbo LA, Luna JM. Synthesis and Characterization of Silver Nanoparticles Stabilized with Biosurfactant and Application as an Antimicrobial Agent. Microorganisms 2024; 12:1849. [PMID: 39338522 DOI: 10.3390/microorganisms12091849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2024] [Revised: 08/22/2024] [Accepted: 09/03/2024] [Indexed: 09/30/2024] Open
Abstract
Surfactants can be used as nanoparticle stabilizing agents. However, since synthetic surfactants are not economically viable and environmentally friendly, biosurfactants are emerging as a green alternative for the synthesis and stabilization of nanoparticles. Nanoparticles have been applied in several areas of industry, such as the production of biomedical and therapeutic components, packaging coating, solar energy generation and transmission and distribution of electrical energy, among others. The aim of this study was to synthesize, in a simple and green way, silver nanoparticles (AgNPs) using the biosurfactant produced by Candida lipolytica UCP 0899 as a stabilizer. AgNPs were examined and morphologically characterized using the techniques of ultraviolet-visible spectroscopy (UV-visible), scanning electron microscopy (SEM), zeta potential and energy dispersive X-ray spectroscopy (EDS). Newly formed silver nanoparticles showed a maximum UV-visible absorption peak at 400 nm, while a shift to 410 nm was observed in those stored for 120 days. SEM micrograph confirmed the formation of nanoparticles with an average size of 20 nm and with a predominant spherical structure, while a zeta potential of -60 mV suggested that the use of the biosurfactant promoted their stability. Stabilized nanoparticles were tested for their antimicrobial activity against bacterial isolates of Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli and Enterobacter sp., as well as fungal isolates of Candida albicans and Aspergillus niger. At a concentration of 16.50 µg/mL, AgNPs inhibited the growth of all target microorganisms according to the following decreasing order: E. coli (95%), S. aureus, C. albicans (90%), A. niger (85%), Enterobacter sp. (75%) and P. aeruginosa (71%). These results suggest the potential use of the biosurfactant as a stabilizer of silver nanoparticles as an antimicrobial agent in different industrial sectors. Furthermore, the in vivo toxicity potential of biosurfactants was evaluated using the Tenebrio molitor model. The larvae were treated with concentrations in the range of 2.5, 5.0 and 10 g/L, and no mortality was observed within the 24 to 72 h period, demonstrating non-toxicity within the tested concentration range. These findings support the safety, efficacy and non-toxicity of biosurfactant-stabilized nanoparticles.
Collapse
Affiliation(s)
- Bruna G A Lima
- Postgraduate Program in Development of Environmental Processes, Catholic University of Pernambuco (UNICAP), Príncipe Street, n. 526-Boa Vista, Recife 50050-900, Brazil
| | - Renata Raianny Silva
- Northeast Biotechnology Network (RENORBIO), Federal Rural University of Pernambuco, Dom Manuel de Medeiros Street, Dois Irmãos, Recife 52171-900, Brazil
| | - Hugo M Meira
- Advanced Institute of Technology and Innovation (IATI), Potira Street, n. 31-Prado, Recife 50070-280, Brazil
| | - Italo J B Durval
- Advanced Institute of Technology and Innovation (IATI), Potira Street, n. 31-Prado, Recife 50070-280, Brazil
| | - Clovis Macedo Bezerra Filho
- School of Health and Life Sciences, Catholic University of Pernambuco (UNICAP), Príncipe Street, n. 526-Boa Vista, Recife 50050-900, Brazil
| | - Thayse A L Silva
- College of Chemical Engineering, State University of Campinas, São Paulo 13083-970, Brazil
| | - Leonie A Sarubbo
- Advanced Institute of Technology and Innovation (IATI), Potira Street, n. 31-Prado, Recife 50070-280, Brazil
- Icam Tech School, Catholic University of Pernambuco (UNICAP), Príncipe Street, n. 526-Boa Vista, Recife 50050-900, Brazil
| | - Juliana Moura Luna
- Advanced Institute of Technology and Innovation (IATI), Potira Street, n. 31-Prado, Recife 50070-280, Brazil
- School of Health and Life Sciences, Catholic University of Pernambuco (UNICAP), Príncipe Street, n. 526-Boa Vista, Recife 50050-900, Brazil
| |
Collapse
|
3
|
Ling Y, Li X, Gao H, Liu Y, Liu Y, Zheng J, Zhu J, Zhao C, Shi Y, Lu J, Yi J. Biyang floral mushroom-derived exosome-like nanovesicles: characterization, absorption stability and ionizing radiation protection. Food Funct 2024; 15:6900-6913. [PMID: 38837182 DOI: 10.1039/d4fo00263f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
Diet-derived exosome-like nanovesicles are a class of natural active substances that have similar structures and functions to mammalian exosomes. Biyang floral mushrooms and their active extracts have been found to possess radioprotective effects and to deeply explore their novel active substances, the radioprotective effects of Biyang floral mushroom-derived exosome-like nanovesicles (BFMELNs) were investigated in this study. Results showed that these surface-negatively charged vesicles possessed an ideal size and good stability against environmental changes such as temperature and gastrointestinal digestion. Furthermore, BFMELNs could effectively be taken up by HL-7702 cells and Caco-2 cells through cellular phagocytosis mediated by clathrin and dynein. Emphatically, BFMELNs with an exosome-like morphology contained RNA, proteins, lipids, polyphenols and flavonoids to exert good antioxidant and radioprotective effects in vitro. Meanwhile, BFMELNs also exhibited good radioprotective effects by restoring peripheral blood indexes, mitigating damage to organs, and regulating the redox state in mice. Collectively, BFMELNs showed promise as novel and natural radioprotective nano-agents for preventing IR-induced oxidative stress damage.
Collapse
Affiliation(s)
- Yunying Ling
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Xue Li
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Hang Gao
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Yongqi Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Yingxin Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Jie Zheng
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Jiaqing Zhu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Changcheng Zhao
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Yanling Shi
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Jike Lu
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
- Food Laboratory of Zhongyuan, Luohe 462300, China
| | - Juanjuan Yi
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China.
- Food Laboratory of Zhongyuan, Luohe 462300, China
| |
Collapse
|
4
|
Begum W, Saha B, Mandal U. A comprehensive review on production of bio-surfactants by bio-degradation of waste carbohydrate feedstocks: an approach towards sustainable development. RSC Adv 2023; 13:25599-25615. [PMID: 37649573 PMCID: PMC10463011 DOI: 10.1039/d3ra05051c] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 08/17/2023] [Indexed: 09/01/2023] Open
Abstract
The advancement of science and technology demands chemistry which is safer, smarter and green by nature. The sustainability of science thus requires well-behaved alternates that best suit the demand. Bio-surfactants are surface active compounds, established to affect surface chemistry. In general, microbial bio-surfactants are a group of structurally diverse molecules produced by different microbes. A large number of bio-surfactants are produced during hydrocarbon degradation by hydrocarbonoclistic microorganisms during their own growth on carbohydrates and the production rate is influenced by the rate of degradation of carbohydrates. The production of such biological surfactants is thus of greater importance. This write up is a dedicated review to update the existing knowledge of inexpensive carbohydrate sources as substrates, microorganisms and technologies of biosurfactant production. This is an economy friendly as well as sustainable approach which will facilitate achieving some sustainable development goals. The production is dependent on the fermentation strategies, different factors of the microbial culture broth and downstream processing; these all have been elaborately presented in this article.
Collapse
Affiliation(s)
- Wasefa Begum
- Department of Chemistry, The University of Burdwan Golapbag West Bengal 713104 India
| | - Bidyut Saha
- Department of Chemistry, The University of Burdwan Golapbag West Bengal 713104 India
| | - Ujjwal Mandal
- Department of Chemistry, The University of Burdwan Golapbag West Bengal 713104 India
| |
Collapse
|
5
|
Attri P, Garg S, Ratan JK, Giri AS. Silver nanoparticles from Tabernaemontana divaricate leaf extract: mechanism of action and bio-application for photo degradation of 4-aminopyridine. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:24856-24875. [PMID: 35013966 DOI: 10.1007/s11356-021-18269-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Silver nanoparticles (Ag NPs) were synthesised by the reduction of Ag+ to Ag0 in the presence of enol form of flavonoids present in plant extract of Tabernaemontana divaricate (T. divaricate). Prepared Ag NPs were characterised using UV-Vis, XRD, HR-TEM with EDX and XPS techniques. XPS spectra exhibited peaks at 366 eV and 373 eV, which specified spin orbits for Ag 3d3/2, and Ag 3d5/2 that confirmed the formation of Ag NPs. Ag NPs were spherical in shape with an average size of 30 nm as revealed by HR-TEM and FE-SEM techniques. EDX studies verified the high purity of Ag NPs with silver 46.96%, carbon 16.35%, oxygen 16.22%, nitrogen 20.25% and sulphur 0.21%. LC-MS analysis of plant extract confirmed the qualitative presence of alkaloids, tannins, flavonoids, phenols, and carbohydrates. Prepared Ag NPs showed good photocatalytic activity towards degradation of 4-Amniopyridine with 61% degradation efficiency at optimum conditions in 2 h of reaction time under visible light. The ten intermediates were found within the mass number of 0-450. Ag NPs synthesised using bio-extract have also shown good inactivation against Escherichia coli (E. coli) and Bacillus subtilis (B. subtilis) bacteria due to the availability of free radicals.
Collapse
Affiliation(s)
- Pratibha Attri
- Department of Chemical Engineering, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, India
| | - Sangeeta Garg
- Department of Chemical Engineering, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, India.
| | - Jatinder Kumar Ratan
- Department of Chemical Engineering, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, India
| | - Ardhendu Sekhar Giri
- Department of Chemical Engineering, Indian Institute of Science Education and Research, Bhopal, India
| |
Collapse
|
6
|
Wang Y, Ding Y, Deng J, Nie R, Meng X. Antibacterial one-step self-etching dental adhesive with silver nanoparticles synthesized in situ. J Dent 2023; 129:104411. [PMID: 36626977 DOI: 10.1016/j.jdent.2023.104411] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 12/15/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023] Open
Abstract
OBJECTIVES The objective of this study is to value the long-term antibacterial capability and adhesive properties of one-step self-etching dental adhesive containing silver nanoparticles (AgNPs) synthesized in situ. METHODS One-step self-etching adhesives with various weight percentages of silver 2-ethylhezanoate (0%, 0.05%, 0.10%, and 0.20%) were obtained by in-situ synthesis; the sizes and distribution of the AgNPs in resin were observed. The antibacterial effects of dentin-resin specimens were assessed by various test methods after being aged for 1 week to 1 year. The microtensile bond strength (μTBS) and interfacial nanoleakage (NL) were evaluated using extracted human teeth after being aged for 1 day and 1 year. RESULTS Uniform distribution of AgNPs in resin was observed in all experimental groups, and the average size was 4.71 nm-4.81 nm. All groups containing AgNPs showed significant antibacterial differences from the control group (P<0.05) over the ageing of 1 year. Although the increase of concentration tended to improve antibacterial activity, significant differences were not observed between the 0.10% and 0.20% groups (P>0.05). No significant differences were observed between all experimental groups and the control group in μTBS testing and NL testing at 1-day and 1-year time points (P>0.05). CONCLUSIONS 0.10% AgNPs synthesized in situ might be appropriate to impart a long-term antibacterial ability to the one-step self-etching adhesive, without affecting its adhesive performance. CLINICAL SIGNIFICANCE This study suggests that in-situ synthesis of AgNPs is an effective method to improve the antibacterial ability of dental adhesives with the potential to inhibit secondary caries.
Collapse
Affiliation(s)
- Yichun Wang
- Department of Prosthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, #30 Zhongyang Road, Nanjing, Jiangsu 210008, PR. China
| | - Yashuang Ding
- Department of Prosthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, #30 Zhongyang Road, Nanjing, Jiangsu 210008, PR. China
| | - Jie Deng
- Department of Emergency&Polyclinic 1st, Nanjing Stomatological Hospital, Medical School of Nanjing University, #30 Zhongyang Road, Nanjing, Jiangsu 210008, PR. China
| | - Rongrong Nie
- Department of Prosthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, #30 Zhongyang Road, Nanjing, Jiangsu 210008, PR. China.
| | - Xiangfeng Meng
- Department of Prosthodontic Technology, Nanjing Stomatological Hospital, Medical School of Nanjing University, #30 Zhongyang Road, Nanjing, Jiangsu 210008, PR. China.
| |
Collapse
|
7
|
Bekissanova Z, Railean V, Brzozowska W, Wojtczak I, Ospanova A, Buszewski B, Sprynskyy M. Synthesis, characterization of silver/kaolinite nanocomposite and studying its antibacterial activity. Colloids Surf B Biointerfaces 2022; 220:112908. [DOI: 10.1016/j.colsurfb.2022.112908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 10/01/2022] [Accepted: 10/07/2022] [Indexed: 11/27/2022]
|
8
|
Optimization of the incubation parameters for biogenic synthesis of WO 3 nanoparticles using Taguchi method. Heliyon 2022; 8:e10640. [PMID: 36158110 PMCID: PMC9494235 DOI: 10.1016/j.heliyon.2022.e10640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/05/2022] [Accepted: 09/08/2022] [Indexed: 11/21/2022] Open
Abstract
Green synthesis of metal nanoparticles is gathering attention due to eco-friendly processing. Tungsten oxide (WO3) nanoparticles have immense applications as semiconductors, antimicrobials and photo thermal materials but their synthesis using biological systems is hitherto unpublicized. The paper discusses synthesis of WO3 nanoparticles using Stenotrophomonas maltophilia and the optimization of physico-chemical parameters of incubation which influence the growth and metabolism of the bacterium and consequently the size of the WO3 nanoparticles. The biogenic synthesis of WO3 nanoparticles was confirmed by ATR-FTIR and X-ray diffraction analysis. Taguchi and analysis of variance method was applied to optimize the physico-chemical parameters (pH, temperature, time, aeration rate and concentration), considering particle size and poly dispersity index (PDI) of the nanoparticles as the experimental responses. Under the design of experiments technique, Taguchi's L27 array was selected to determine the optimal process parameters which could significantly reduce the particle size and PDI of WO3 nanoparticles. Statistical analysis by signal-to-noise ratio, regression analysis and ANOVA (95% confidence level) on experimental responses confirmed pH and aeration as most influential while temperature and time as least influential parameters. pH 8, Temperature 40 °C, aeration 200 RPM, time 3 days and concentration of sodium tungstate at 1 mM (p3t3r3d3c1) was the most effective level and parameters combination for smallest particle size and PDI of WO3 nanoparticles. Regression models developed for particle size and PDI exhibited a linear regression of 97.80% and 90.89% respectively, while the confirmation test validated the size and PDI of the experimental values against predicted results. SEM image of WO3 nanoparticles illustrated the same particle size as that predicted, further validating the model. The study can be applied to optimize any process parameters in the industry or on biological systems.
Collapse
|
9
|
Moura CC, Salazar-Bryam AM, Piazza RD, Carvalho dos Santos C, Jafelicci M, Marques RFC, Contiero J. Rhamnolipids as Green Stabilizers of nZVI and Application in the Removal of Nitrate From Simulated Groundwater. Front Bioeng Biotechnol 2022; 10:794460. [PMID: 35519607 PMCID: PMC9062033 DOI: 10.3389/fbioe.2022.794460] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Environmental contamination caused by inorganic compounds is a major problem affecting soils and surface water. Most remediation techniques are costly and generally lead to incomplete removal and production of secondary waste. Nanotechnology, in this scenario with the zero-valent iron nanoparticle, represents a new generation of environmental remediation technologies. It is non-toxic, abundant, cheap, easy to produce, and its production process is simple. However, in order to decrease the aggregation tendency, the zero-iron nanoparticle is frequently coated with chemical surfactants synthesized from petrochemical sources, which are persistent or partially biodegradable. Biosurfactants (rhamnolipids), extracellular compounds produced by microorganisms from hydrophilic and hydrophobic substrates can replace synthetic surfactants. This study investigated the efficiency of a rhamnolipid biosurfactant on the aggregation of nanoscale zer-valent iron (nZVI) and its efficiency in reducing nitrate in simulated groundwater at pH 4.0. Two methods were tested: 1) adding the rhamnolipid during chemical synthesis and 2) adding the rhamnolipid after chemical synthesis of nZVI. Scanning electron microscopy field emission, X-ray diffractometry, Fourier transform infrared spectroscopy, thermogravimetric analysis, Dynamic Light Scattering, and zeta potential measurements were used to characterize bare nZVI and rhamnolipid-coated nZVI. The effects of the type of nZVI and initial NO3 concentration were examined. Nanoscale zer-valent iron with the addition of the rhamnolipid after synthesis achieved the best removal rate of nitrate (about 78%), with an initial nitrate concentration of 25 mg L−1. The results suggest that nZVI functionalized with rhamnolipids is a promising strategy for the in situ remediations of groundwater contaminated by NO3, heavy metal, and inorganic carbon.
Collapse
Affiliation(s)
- Cinthia Cristine Moura
- Associate Laboratory of the Institute for Research in Bioenergy (IPBEN)-Unesp, São Paulo State University (Unesp), Institute for Research in Bioenergy, Rio Claro, Brazil
| | - Ana Maria Salazar-Bryam
- Industrial Microbiology Laboratory, General and Applied Biology, Institute of Biosciences, São Paulo State University (Unesp), Rio Claro, Brazil
| | - Rodolfo Debone Piazza
- Laboratory of Magnetic Materials and Colloids, Institute of Chemistry, São Paulo State University (Unesp), Araraquara, Brazil
| | - Caio Carvalho dos Santos
- Laboratory of Magnetic Materials and Colloids, Institute of Chemistry, São Paulo State University (Unesp), Araraquara, Brazil
| | - Miguel Jafelicci
- Laboratory of Magnetic Materials and Colloids, Institute of Chemistry, São Paulo State University (Unesp), Araraquara, Brazil
| | - Rodrigo Fernando Costa Marques
- Laboratory of Magnetic Materials and Colloids, Institute of Chemistry, São Paulo State University (Unesp), Araraquara, Brazil
- Monitoring and Research Center for the Quality of Fuels, Biofuels, Petroleum and Derivatives (CEMPEQC/IQ-Unesp), Araraquara, Brazil
| | - Jonas Contiero
- Associate Laboratory of the Institute for Research in Bioenergy (IPBEN)-Unesp, São Paulo State University (Unesp), Institute for Research in Bioenergy, Rio Claro, Brazil
- Industrial Microbiology Laboratory, General and Applied Biology, Institute of Biosciences, São Paulo State University (Unesp), Rio Claro, Brazil
- *Correspondence: Jonas Contiero,
| |
Collapse
|
10
|
Improved remediation of co-contaminated soils by heavy metals and PAHs with biosurfactant-enhanced soil washing. Sci Rep 2022; 12:3801. [PMID: 35260619 PMCID: PMC8904480 DOI: 10.1038/s41598-022-07577-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 02/11/2022] [Indexed: 12/18/2022] Open
Abstract
Due to the huge toxicity of co-contaminated soil with PAHs and heavy metals and the complexity of their remediation, it is thus critical to take effective remediation actions to remove heavy metals and PAHs simultaneously from the co-contaminated soil. Biosurfactant-enhanced soil washing (BESW) were investigated in this study for remediation of soil co-contaminated with phenanthrene (PHE) and cadmium (Cd). The co-existence of PHE and Cd caused the change of the structure of soil and rhamnolipid micelle, which lead to different removal rate of PHE and Cd from co-contaminated soil compared with single contaminated soil. The results of FT-IR and NMR showed that PHE entered micelles of rhamnolipid and Cd formed the complexation with the external carboxyl groups of rhamnolipid micelle. We also found that pH, concentration of rhamnolipid solution, temperature and ionic strength had influence on co-contaminated soil remediation. The effects of above mentioned four factors on co-contaminated soil remediation in BESW processes were analyzed by using Taguchi design of experiment method. Taguchi based Grey Relational Analysis was conducted to identify the optimal remediation conditions, which included pH = 9, concentration of rhamnolipid = 5 g/L, temperature = 15 °C and ionic strength = 0.01 M. Under the optimal conditions for BESW, removal rates of cadmium and phenanthrene reached 72.4% and 87.8%, respectively in co-contaminated soil.
Collapse
|
11
|
Yang W, Liang W, Zhitomirsky I. Application of Rhamnolipids as Dispersing Agents for the Fabrication of Composite MnO 2-Carbon Nanotube Electrodes for Supercapacitors. Molecules 2022; 27:1659. [PMID: 35268760 PMCID: PMC8911650 DOI: 10.3390/molecules27051659] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/19/2022] [Accepted: 03/01/2022] [Indexed: 11/16/2022] Open
Abstract
The high theoretical capacitance of MnO2 renders it a promising material for the cathodes of asymmetric supercapacitors. The good dispersion of MnO2 and conductive additives in a nanocomposite electrode is a key factor for efficient electrode performance. This article describes, for the first time, the application of rhamnolipids (RL) as efficient natural biosurfactants for the fabrication of nanocomposite MnO2-carbon nanotube electrodes for supercapacitors. RL act as co-dispersants for MnO2 and carbon nanotubes and facilitate their efficient mixing, which allows for advanced capacitive properties at an active mass of 40 mg cm-2 in Na2SO4 electrolytes. The highest capacitance obtained from the cyclic voltammetry data at a scan rate of 2 mV s-1 is 8.10 F cm-2 (202.6 F g-1). The highest capacitance obtained from the galvanostatic charge-discharge data at a current density of 3 mA cm-2 is 8.65 F cm-2 (216.16 F g-1). The obtained capacitances are higher than the capacitances of MnO2-based electrodes of the same active mass reported in the literature. The approach developed in this investigation is simple compared to other techniques used for the fabrication of electrodes with high active mass. It offers advantages of using a biocompatible RL biosurfactant.
Collapse
Affiliation(s)
| | | | - Igor Zhitomirsky
- Department of Materials Science and Engineering, McMaster University, Hamilton, ON L8S 4L7, Canada; (W.Y.); (W.L.)
| |
Collapse
|
12
|
Sarubbo LA, Silva MDGC, Durval IJB, Bezerra KGO, Ribeiro BG, Silva IA, Twigg MS, Banat IM. Biosurfactants: Production, Properties, Applications, Trends, and General Perspectives. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108377] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
13
|
Sidhu AK, Verma N, Kaushal P. Role of Biogenic Capping Agents in the Synthesis of Metallic Nanoparticles and Evaluation of Their Therapeutic Potential. FRONTIERS IN NANOTECHNOLOGY 2022. [DOI: 10.3389/fnano.2021.801620] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
The biomedical properties of nanoparticles have been the area of focus for contemporary science; however, there are issues concerning their long-term toxicities. Recent trends in nanoparticle fabrication and surface manipulation, the use of distinctive biogenic capping agents, have allowed the preparation of nontoxic, surface-functionalized, and monodispersed nanoparticles for medical applications. These capping agents act as stabilizers or binding molecules that prevent agglomeration and steric hindrance, alter the biological activity and surface chemistry, and stabilize the interaction of nanoparticles within the preparation medium. Explicit features of nanoparticles are majorly ascribed to the capping present on their surface. The present review article is an attempt to compile distinctive biological capping agents deployed in the synthesis of metal nanoparticles along with the medical applications of these capped nanoparticles. First, this innovative review highlights the various biogenic capping agents, including biomolecules and biological extracts of plants and microorganisms. Next, the therapeutic applications of capped nanoparticles and the effect of biomolecules on the efficiency of the nanoparticles have been expounded. Finally, challenges and future directions on the use of biological capping agents have been concluded. The goal of the present review article is to provide a comprehensive report to researchers who are looking for alternative biological capping agents for the green synthesis of important metallic nanoparticles.
Collapse
|
14
|
Pochapski DJ, Carvalho Dos Santos C, Leite GW, Pulcinelli SH, Santilli CV. Zeta Potential and Colloidal Stability Predictions for Inorganic Nanoparticle Dispersions: Effects of Experimental Conditions and Electrokinetic Models on the Interpretation of Results. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:13379-13389. [PMID: 34637312 DOI: 10.1021/acs.langmuir.1c02056] [Citation(s) in RCA: 67] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this work, a set of experimental electrophoretic mobility (μe) data was used to show how inappropriate selection of the electrokinetic model used to calculate the zeta potential (ζ-potential) can compromise the interpretation of the results for nanoparticles (NPs). The main consequences of using ζ-potential values as criteria to indicate the colloidal stability of NP dispersions are discussed based on DLVO interaction energy predictions. For this, magnetite (Fe3O4) NPs were synthesized and characterized as a model system for performing electrokinetic experiments. The results showed that the Fe3O4 NPs formed mass fractal aggregates in solution, so the ζ-potential could not be determined under ideal conditions when μe depends on the NP radius. In addition, the Dukhin number (Du) estimated from potentiometric titration results indicated that stagnant layer conduction (SLC) could not be neglected for this system. The electrokinetic models that do not consider SLC grossly underestimated the ζ-potential values for the Fe3O4 NPs. The DLVO interaction energy predictions for the colloidal stability of the Fe3O4 NP dispersions also depended on the electrokinetic model used to calculate the ζ-potential. The results obtained for the Fe3O4 NP dispersions also suggested that, contrary to many reports in the literature, high ζ-potential values do not necessarily reflect high colloidal stability for charge-stabilized NP dispersions.
Collapse
Affiliation(s)
- Daniel José Pochapski
- Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP 14800-060, Brazil
| | | | - Gabriel Wosiak Leite
- Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP 14800-060, Brazil
- Chemistry Department, Federal University of São Carlos (UFSCar), São Carlos, SP 13565-905, Brazil
| | | | - Celso Valentim Santilli
- Institute of Chemistry, São Paulo State University (UNESP), Araraquara, SP 14800-060, Brazil
| |
Collapse
|