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Das S, Tripathi A, Ghangrekar MM. Application of biomimetically synthesized silver nanoparticles as cathode catalyst, quorum-quencher, and anti-biofouling agent for the performance boosting of microbial fuel cell. CHEMOSPHERE 2024; 352:141392. [PMID: 38325616 DOI: 10.1016/j.chemosphere.2024.141392] [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: 04/13/2023] [Revised: 02/01/2024] [Accepted: 02/04/2024] [Indexed: 02/09/2024]
Abstract
A microbial fuel cell (MFC) is a cutting-edge bioelectrochemical technology, which demonstrates power and other valuables recovery while treating wastewater by cultivating electroactive microbes. However, rampant biofilm growth over the cathode surface of air cathode MFC exacerbates the oxidation-reduction reaction rate, triggering a dip in the overall performance of MFC. In this sense, biosynthesized silver nanoparticles (AgNPs) have garnered a plethora of potential applications as cathode catalysts as well as anti-biofouling agent for MFCs without harming nature. The MFC equipped with the mixture of aloe vera and algae (@5 mg/cm2) synthesized AgNPs on cathode generated a maximum power density of 66.5 mW/m2 and chemical oxygen demand removal efficiency of 85.2%, which was ca. 5.6 times and 1.2 times higher compared to control MFC operated without any catalyst on cathode. Thus, this investigation paves the way for using eco-amiable, low-cost bioderived organic compounds to assist MFC in achieving high power output and other valuables with minimal reliance on chemicals.
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Affiliation(s)
- Swati Das
- PK Sinha Centre for Bioenergy & Renewables, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Akash Tripathi
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Makarand M Ghangrekar
- PK Sinha Centre for Bioenergy & Renewables, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India; Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
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Gassour H, El-Magd GEDAA, Mazen A, Ibrahim AMM. Characterization of aluminum composite reinforced by silver nanoparticles. Sci Rep 2023; 13:17952. [PMID: 37863987 PMCID: PMC10589256 DOI: 10.1038/s41598-023-45059-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/15/2023] [Indexed: 10/22/2023] Open
Abstract
This research investigates the mechanical properties improvement of reinforced Al6061 using powder metallurgy (PM) route. It utilizes the nanoparticles strengthening mechanism to enhance the prepared samples' mechanical properties. For this purpose, Silver Nano-Particles (AgNPs) with contents of 0 wt%, 1 wt%, and 2 wt% were used to reinforce the Al6061 Matrix Composition (AMC). For optimization purposes, many parameters have been considered during the research journey namely: compaction pressure, sintering temperature, dwelling time, and reinforcement contents. All samples are examined in terms of density, hardness, and compression strength. Additionally, scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, mapping analysis, and XRD were used to investigate the microstructure. The experimental results revealed highest hardness values at 2 wt% AgNPs reinforced sample that was sintered at 600 °C, while the lowest was obtained at un-reinforced sample sintered at 550 °C. Furthermore, the compression strength of sample reinforced with 2 wt% AgNPs and sintered at 600 °C recorded an improvement of 25.8% of the maximum compression strength compared to the un-reinforced sample, as it reached 216 N/mm2. Regarding microstructural analysis, SEM imaging and EDX played an important role in exploring and interpreting many unusual test behaviors including the formation of intermetallic bonding, minor pores formation, and reinforcement dispersion un-homogeneity.
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Affiliation(s)
- H Gassour
- Mechanical Engineering Department, Higher Technological Institute at 10th of Ramadan City, Ramadan, 44629, Egypt
| | - Gamal El-Din Ali Abu El-Magd
- Production Engineering and Mechanical Design Department, Faculty of Engineering, Minia University, Minya, 61519, Egypt
| | - Asaad Mazen
- Production Engineering and Mechanical Design Department, Faculty of Engineering, Minia University, Minya, 61519, Egypt
| | - Ahmed Mohamed Mahmoud Ibrahim
- Production Engineering and Mechanical Design Department, Faculty of Engineering, Minia University, Minya, 61519, Egypt.
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Painuli S, Semwal P, Sharma R, Akash S. Superbugs or multidrug resistant microbes: A new threat to the society. Health Sci Rep 2023; 6:e1480. [PMID: 37547359 PMCID: PMC10397562 DOI: 10.1002/hsr2.1480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/13/2023] [Accepted: 07/21/2023] [Indexed: 08/08/2023] Open
Affiliation(s)
- Sakshi Painuli
- Natural Products Research LaboratoryUttarakhand Council for BiotechnologyDehradunIndia
| | - Prabhakar Semwal
- Department of BiotechnologyGraphic Era (Deemed to be University)DehradunIndia
- Research and Development CellGraphic Era Hill UniversityDehradunIndia
| | - Rohit Sharma
- Department of Rasa Shastra and Bhaishajya KalpanaFaculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu UniversityUttar PradeshVaranasiIndia
| | - Shopnil Akash
- Faculty of Allied Health ScienceDepartment of Pharmacy, Daffodil International UniversityDhakaBangladesh
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Sethuram L, Thomas J. Therapeutic applications of electrospun nanofibers impregnated with various biological macromolecules for effective wound healing strategy - A review. Biomed Pharmacother 2023; 157:113996. [PMID: 36399827 DOI: 10.1016/j.biopha.2022.113996] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/31/2022] [Accepted: 11/09/2022] [Indexed: 11/17/2022] Open
Abstract
A Non-healing infected wound is an ever-growing global epidemic, with increasing burden of mortality rates and management costs. The problems of chronic wound infections and their outcomes will continue as long as their underlying causes like diabetic wounds grow and spread. Commercial wound therapies employed have limited potential that inhibits pivotal functions and tissue re-epithelialization properties resulting in wound infections. Nanomaterial based drug delivery formulations involving biological macromolecules are developing areas of interest in wound healing applications which are utilized in the re-epithelialization of skin with cost-effective preparations. Research conducted on nanofibers has shown enhanced skin establishment with improved cell proliferation and growth and delivery of bioactive organic molecules at the wound site. However, drug targeted delivery with anti-scarring properties and tissue regeneration aspects have not been updated and discussed in the case of macromolecule impregnated nanofibrous mats. Hence, this review focuses on the brief concepts of wound healing and wound management, therapeutic commercialized wound dressings currently available in the field of wound care, effective electrospun nanofibers impregnated with different biological macromolecules and advancement of nanomaterials for tissue engineering have been discussed. These new findings will pave the way for producing anti-scarring high effective wound scaffolds for drug delivery.
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Affiliation(s)
- Lakshimipriya Sethuram
- School of Bio Sciences & Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India; Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - John Thomas
- Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, India.
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de Carvalho Lima EN, Barros Martins GL, Diaz RS, Schechter M, Piqueira JRC, Justo JF. Effects of Carbon Nanomaterials and Aloe vera on Melanomas—Where Are We? Recent Updates. Pharmaceutics 2022; 14:pharmaceutics14102004. [PMID: 36297440 PMCID: PMC9607275 DOI: 10.3390/pharmaceutics14102004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/29/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022] Open
Abstract
Melanoma is an aggressive skin cancer that affects approximately 140,000 people worldwide each year, with a high fatality rate. Available treatment modalities show limited efficacy in more severe cases. Hence, the search for new treatment modalities, including immunotherapies, for curing, mitigating, and/or preventing cancer is important and urgently needed. Carbon nanoparticles associated with some plant materials, such as Aloe vera, have shown appealing antineoplastic activity, derived mainly from the compounds aloin, aloe-emodin, barbaloin acemannan, and octapeptide, thus representing new possibilities as antitumor agents. This systematic review aims to arouse interest and present the possibilities of using Aloe vera combined with carbon-based nanomaterials as an antineoplastic agent in the treatment and prevention of melanoma. Limitations and advances in melanoma treatment using functionalized carbon nanomaterials are discussed here. Moreover, this review provides the basis for further studies designed to fully explore the potential of carbon nanomaterials associated with Aloe vera in the treatment of various cancers, with a focus on melanoma.
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Affiliation(s)
- Elidamar Nunes de Carvalho Lima
- Telecommunication and Control Engineering Department, Polytechnic School of the University of São Paulo, Avenida Prof. Luciano Gualberto, Travessa 3, 158, São Paulo 05508-010, Brazil
- Infectious Diseases Division, Department of Medicine, Federal University of São Paulo, São Paulo 04023-062, Brazil
- Electronic Systems Engineering Department, Polytechnic School of the University of São Paulo, São Paulo 05508-010, Brazil
- Correspondence: ; Tel.: +55-11-3091-5647 or +55-11-96326-5550
| | - Guilherme Leão Barros Martins
- Telecommunication and Control Engineering Department, Polytechnic School of the University of São Paulo, Avenida Prof. Luciano Gualberto, Travessa 3, 158, São Paulo 05508-010, Brazil
| | - Ricardo Sobhie Diaz
- Infectious Diseases Division, Department of Medicine, Federal University of São Paulo, São Paulo 04023-062, Brazil
| | - Mauro Schechter
- Infectious Diseases Division, Department of Medicine, Federal University of São Paulo, São Paulo 04023-062, Brazil
| | - José Roberto Castilho Piqueira
- Telecommunication and Control Engineering Department, Polytechnic School of the University of São Paulo, Avenida Prof. Luciano Gualberto, Travessa 3, 158, São Paulo 05508-010, Brazil
| | - João Francisco Justo
- Electronic Systems Engineering Department, Polytechnic School of the University of São Paulo, São Paulo 05508-010, Brazil
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Light-Emitting-Diode-Assisted, Fungal-Pigment-Mediated Biosynthesis of Silver Nanoparticles and Their Antibacterial Activity. Polymers (Basel) 2022; 14:polym14153140. [PMID: 35956655 PMCID: PMC9370687 DOI: 10.3390/polym14153140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/20/2022] [Accepted: 07/23/2022] [Indexed: 02/06/2023] Open
Abstract
Nanoparticle synthesis, such as green synthesis of silver nanoparticles (AgNPs) using biogenic extracts, is affected by light, which changes the characteristics of particles. However, the effect of light-emitting diodes (LEDs) on AgNP biosynthesis using fungal pigment has not been examined. In this study, LEDs of different wavelengths were used in conjunction with Talaromyces purpurogenus extracellular pigment for AgNP biosynthesis. AgNPs were synthesized by mixing 10 mL of fungal pigment with AgNO3, followed by 24 h exposure to LEDs of different wavelengths, such as blue, green, orange, red, and infrared. All treatments increased the yield of AgNPs. The solutions exposed to blue, green, and infrared LEDs exhibited a significant increase in AgNP synthesis. All AgNPs were then synthesized to determine the optimum precursor (AgNO3) concentration and reaction rate. The results indicated 5 mM AgNO3 as the optimum precursor concentration; furthermore, AgNPs-blue LED had the highest reaction rate. Dynamic light scattering analysis, zeta potential measurement, transmission electron microscopy, and Fourier transform infrared spectroscopy were used to characterize the AgNPs. All LED-synthesized AgNPs exhibited an antimicrobial potential against Escherichia coli and Staphylococcus aureus. The combination of LED-synthesized AgNPs and the antibiotic streptomycin demonstrated a synergistic antimicrobial activity against both bacterial species.
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Sari M, Yalcin IE, Taner M, Cosgun T, Ozyigit II. An investigation on environmental pollution due to essential heavy metals: a prediction model through multilayer perceptrons. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:89-97. [PMID: 35400247 DOI: 10.1080/15226514.2022.2059056] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This research is to predict heavy metal levels in plants, particularly in Robinia pseudoacacia L., and soils using an effective artificial intelligence approach with some ecological parameters, thereby significantly eliminating common defects such as high cost and seriously tedious and time-consuming laboratory procedures. In this respect, the artificial neural network (ANN) is employed to estimate the concentrations of essential heavy metals such as Fe, Mn and Ni, depending on the Cu and Zn concentrations of plant and soil samples collected from five different locations. The derived relative errors for the constructed ANN model have been computed within the ranges 0.041-0.051, 0.017-0.025, and 0.026-0.029 for the training, testing and holdout data regarding Fe, Mn, and Ni, respectively. In addition, it has been realized that the relative errors could be diminished up to 0.007 for Fe, 0.014 for Mn and 0.022 for Ni by considering the Cu, Zn, location and plant parts as independent variables during the analysis. The results produced seem instructive and pioneering for environmentalists and scientists to design optimal study programs to leave a livable ecosystem.
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Affiliation(s)
- Murat Sari
- Department of Mathematics, Faculty of Arts and Sciences, Yildiz Technical University, Istanbul, Turkey
| | - Ibrahim Ertugrul Yalcin
- Department of Civil Engineering, Faculty of Engineering and Natural Sciences, Bahcesehir University, Istanbul, Turkey
| | - Mahmut Taner
- Department of Mathematics, Faculty of Engineering and Natural Sciences, Bahcesehir University, Istanbul, Turkey
| | - Tahir Cosgun
- Department of Mathematics, Faculty of Arts and Sciences, Yildiz Technical University, Istanbul, Turkey
- Department of Mathematics, Faculty of Arts and Sciences, Amasya University, Amasya, Turkey
| | - Ibrahim Ilker Ozyigit
- Department of Biology, Faculty of Arts and Sciences, Marmara University, Istanbul, Turkey
- Department of Biology, Faculty of Sciences, Kyrgyz-Turkish Manas University, Bishkek, Kyrgyzstan
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Parmanik A, Das S, Kar B, Bose A, Dwivedi GR, Pandey MM. Current Treatment Strategies Against Multidrug-Resistant Bacteria: A Review. Curr Microbiol 2022; 79:388. [PMID: 36329256 PMCID: PMC9633024 DOI: 10.1007/s00284-022-03061-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 09/26/2022] [Indexed: 11/06/2022]
Abstract
There are several bacteria called superbugs that are resistant to multiple antibiotics which can be life threatening specially for critically ill and hospitalized patients. This article provides up-to-date treatment strategies employed against some major superbugs, like methicillin-resistant Staphylococcus aureus, carbapenem-resistant Enterobacteriaceae, vancomycin-resistant Enterococcus, multidrug-resistant Pseudomonas aeruginosa, and multidrug-resistant Escherichia coli. The pathogen-directed therapeutics decrease the toxicity of bacteria by altering their virulence factors by specific processes. On the other hand, the host-directed therapeutics limits these superbugs by modulating immune cells, enhancing host cell functions, and modifying disease pathology. Several new antibiotics against the global priority superbugs are coming to the market or are in the clinical development phase. Medicinal plants possessing potent secondary metabolites can play a key role in the treatment against these superbugs. Nanotechnology has also emerged as a promising option for combatting them. There is urgent need to continuously figure out the best possible treatment strategy against these superbugs as resistance can also be developed against the new and upcoming antibiotics in future. Rational use of antibiotics and maintenance of proper hygiene must be practiced among patients.
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Affiliation(s)
- Ankita Parmanik
- grid.412612.20000 0004 1760 9349School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, Odisha 751003 India
| | - Soumyajit Das
- grid.412612.20000 0004 1760 9349School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, Odisha 751003 India
| | - Biswakanth Kar
- grid.412612.20000 0004 1760 9349School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, Odisha 751003 India
| | - Anindya Bose
- grid.412612.20000 0004 1760 9349School of Pharmaceutical Sciences, Siksha O Anusandhan (Deemed to be University), Bhubaneswar, Odisha 751003 India
| | - Gaurav Raj Dwivedi
- grid.464904.b0000 0004 0506 3705ICMR-Regional Medical Research Centre, Gorakhpur, Uttar Pradesh 273013 India
| | - Murali Monohar Pandey
- grid.418391.60000 0001 1015 3164Birla Institute of Technology and Science (BITS), Pilani, Rajasthan 333031 India
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