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Guillén-Meléndez GA, Pérez-Hernández RA, Chávez-Montes A, Castillo-Velázquez U, de Jesús Loera-Arias M, Montes-de-Oca-Saucedo CR, Rodríguez-Rocha H, Contreras-Torres FF, Saucedo-Cárdenas O, Soto-Domínguez A. Nanoencapsulation of extracts and isolated compounds of plant origin and their cytotoxic effects on breast and cervical cancer treatments: Advantages and new challenges. Toxicon 2024; 244:107753. [PMID: 38740098 DOI: 10.1016/j.toxicon.2024.107753] [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: 03/07/2024] [Revised: 04/22/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024]
Abstract
This review analyzes the current progress in loaded nanoparticles (NPs) of plant extracts or isolated antineoplastic compounds used in breast and cervical cancer treatments. Also, it provides a comprehensive overview of the contributions made by traditional medicine and nanomedicine to the research of two of the most prevalent types of cancer in women worldwide: breast and cervical cancer. Searches were conducted in electronic databases to gather relevant information related to the biological activity of the NPs, which were meticulously reviewed. Nanomedicine has advanced to incorporate plant compounds including their crude extracts, in the preparation of NPs. The most used method is green synthesis, whose most outstanding advantages, is the reduced preparation time, and the variety of results that can be obtained depending on the reaction times, pH, temperature, and concentration of both the bio-reducing agent and the compound or plant extract. Most of the studies focus on evaluating crude extracts with high polarity, such as aqueous, alcoholic, and hydroalcoholic extracts. In conclusion, exploring the use of organic compounds is considered an area of opportunity for further research and future perspectives. Most of the analyzed studies were conducted using in vitro assays, highlighting the relatively recent nature of this field. It is expected that future research will involve more in vivo assays, particularly focusing on isolated cell lines representing the most difficult-to-treat types of cancer, such as triple-negative breast cancer like MDA-MB-231. Notably the MCF-7 cell line is one of the most used, while limited studies were found concerning cervical cancer.
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Affiliation(s)
- Gloria A Guillén-Meléndez
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León. Monterrey, N.L., C.P. 64460, Mexico.
| | - Raymundo A Pérez-Hernández
- Departamento de Química, Facultad de Ciencias Biológicas, UANL. San Nicolás de los Garza, N.L., C.P. 64455, Mexico.
| | - Abelardo Chávez-Montes
- Departamento de Química, Facultad de Ciencias Biológicas, UANL. San Nicolás de los Garza, N.L., C.P. 64455, Mexico.
| | - Uziel Castillo-Velázquez
- Departamento de Inmunología, Facultad de Medicina Veterinaria y Zootecnia, UANL. Escobedo, N.L., C.P. 66050, Mexico.
| | - María de Jesús Loera-Arias
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León. Monterrey, N.L., C.P. 64460, Mexico.
| | - Carlos R Montes-de-Oca-Saucedo
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León. Monterrey, N.L., C.P. 64460, Mexico.
| | - Humberto Rodríguez-Rocha
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León. Monterrey, N.L., C.P. 64460, Mexico.
| | | | - Odila Saucedo-Cárdenas
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León. Monterrey, N.L., C.P. 64460, Mexico.
| | - Adolfo Soto-Domínguez
- Departamento de Histología, Facultad de Medicina, Universidad Autónoma de Nuevo León. Monterrey, N.L., C.P. 64460, Mexico.
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Ahmad B, Chang L, Yin C, Wu Z, Tong A, Tong C, Liu B. Assessing Phytogenic and Chemogenic Silver Nanoparticles for Antibacterial Activity and Expedited Wound Recuperation. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:237. [PMID: 38334508 PMCID: PMC10856191 DOI: 10.3390/nano14030237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 02/10/2024]
Abstract
Green silver nanoparticles (AgNPs) possess tremendous promise for diverse applications due to their versatile characteristics. Coriander and other plant extracts have become popular for greenly synthesizing AgNPs as an economical, biocompatible, cost-effective, and environmentally beneficial alternative to chemical processes. In this study, we synthesized AgNPs from coriander leaves and evaluated their antibacterial, anti-inflammatory, antioxidant, and wound-healing acceleration properties in comparison to chemically synthesized AgNPs. The zeta potentials of AgNPs extracted from green and chemical processes were -32.4 mV and -23.4 mV, respectively. TEM images showed a cuboidal shape of green and chemical AgNPs with a diameter of approximately 100 nm. The FTIR spectra of green AgNPs showed an extreme absorption peak at 3401 cm-1, which signifies O-H stretching vibrations, typically linked to hydroxyl groups. In vitro results elaborated that AgNPs from coriander exerted a stronger effect on anti-Klebsiella pneumoniae (KP) through interrupting cell integrity, generating ROS, depleting ATP, and exhibiting significant antioxidant activity, compared with AgNPs synthesized chemically. In vivo experiments showed that AgNPs from coriander, as opposed to chemically manufactured AgNPs, greatly accelerated the healing of wounds contaminated with Klebsiella pneumoniae bacteria by effectively eliminating the bacteria on the wounds and stimulating skin regeneration and the deposition of dense collagen. In vivo assays further demonstrated that green AgNPs effectively enhanced Klebsiella pneumoniae-infected wound healing by extenuating local inflammatory responses and up-regulating VEGF and CD31 expression. In conclusion, green AgNPs significantly alleviated the inflammation without significantly harming the organism.
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Affiliation(s)
- Bilal Ahmad
- College of Biology, Hunan University, Changsha 410082, China; (B.A.); (L.C.); (C.Y.); (Z.W.)
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Li Chang
- College of Biology, Hunan University, Changsha 410082, China; (B.A.); (L.C.); (C.Y.); (Z.W.)
- Institute of Bast Fiber Crop, Chinese Academy of Agriculture Sciences, Changsha 410082, China
| | - Caiyun Yin
- College of Biology, Hunan University, Changsha 410082, China; (B.A.); (L.C.); (C.Y.); (Z.W.)
| | - Zhou Wu
- College of Biology, Hunan University, Changsha 410082, China; (B.A.); (L.C.); (C.Y.); (Z.W.)
| | - Aidi Tong
- School of Medicine, Hunan Normal University, Changsha 410082, China;
| | - Chunyi Tong
- College of Biology, Hunan University, Changsha 410082, China; (B.A.); (L.C.); (C.Y.); (Z.W.)
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Bin Liu
- College of Biology, Hunan University, Changsha 410082, China; (B.A.); (L.C.); (C.Y.); (Z.W.)
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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Dilbar S, Sher H, Ali H, Ullah R, Ali A, Ullah Z. Antibacterial Efficacy of Green Synthesized Silver Nanoparticles Using Salvia nubicola Extract against Ralstonia solanacearum, the Causal Agent of Vascular Wilt of Tomato. ACS OMEGA 2023; 8:31155-31167. [PMID: 37663485 PMCID: PMC10468922 DOI: 10.1021/acsomega.3c03164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 08/04/2023] [Indexed: 09/05/2023]
Abstract
Ralstonia solanacearum is a phytopathogen causing bacterial wilt diseases of tomato and affecting its productivity, which leads to prominent economic losses annually. As an alternative to conventional pesticides, green synthesized nanoparticles are believed to possess strong antibacterial activities besides being cheap and ecofriendly. Here, we present the synthesis of silver nanoparticles (Sn-AgNPs) from medicinally important aqueous plant extracts of Salvia nubicola. Characterization of biologically synthesized nanoparticles was performed through UV-vis spectrophotometry, Fourier transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy, X-ray diffraction, scanning electron microscopy, transmission electron microscopy (TEM), and thermogravimetric analysis. The antibacterial activity of the biosynthesized silver nanoparticles was tested against the phytopathogen R. solanacearum through in vitro experiments. Preliminary phytochemical analysis of the plant extracts revealed the presence of substantial amounts of flavonoids (57.08 mg GAE/g), phenolics (42.30 mg GAE/g), tannins, and terpenoids. The HPLC phenolic profile indicated the presence of 25 possible bioactive compounds. Results regarding green synthesized silver nanoparticles revealed the conformation of different functional groups through FTIR analysis, which could be responsible for the bioreduction and capping of Ag ions into silver NPs. TEM results revealed the spherical, crystalline shape of nanoparticles with the size in the range of 23-63 nm, which validates SEM results. Different concentrations of Sn-AgNPs (T1 (500 μg/mL) to T7 (78.1 μg/mL)) with a combination of plant extracts (PE-Sn-AgNPs) and plant extracts alone exhibited an efficient inhibition of R. solanacearum. These findings could be used as an effective alternative preparation against the bacterial wilt of tomato.
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Affiliation(s)
- Shazia Dilbar
- Centre
for Plant Sciences and Biodiversity, University
of Swat, Charbagh Swat 19120, Pakistan
| | - Hassan Sher
- Centre
for Plant Sciences and Biodiversity, University
of Swat, Charbagh Swat 19120, Pakistan
| | - Hina Ali
- Shanghai
Key Laboratory for Molecular Engineering of Chiral Drugs, School of
Chemistry and Chemical Engineering, Shanghai
Jiao Tong University, Shanghai 200240, China
| | - Riaz Ullah
- Department
of Pharmacognosy, College of Pharmacy King
Saud University Riyadh, Riyadh 11451, Saudi Arabia
| | - Ahmad Ali
- Centre
for Plant Sciences and Biodiversity, University
of Swat, Charbagh Swat 19120, Pakistan
| | - Zahid Ullah
- Centre
for Plant Sciences and Biodiversity, University
of Swat, Charbagh Swat 19120, Pakistan
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Shyam-Sundar N, Karthi S, Senthil-Nathan S, Narayanan KR, Santoshkumar B, Sivanesh H, Chanthini KMP, Stanley-Raja V, Ramasubramanian R, Abdel-Megeed A, Malafaia G. Eco-friendly biosynthesis of TiO 2 nanoparticles using Desmostachya bipinnata extract: Larvicidal and pupicidal potential against Aedes aegypti and Spodoptera litura and acute toxicity in non-target organisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159512. [PMID: 36265619 DOI: 10.1016/j.scitotenv.2022.159512] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Revised: 10/08/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
The resistance to insecticides among insects, including mosquitoes and agricultural pests, and the impact of these compounds' environmental risks and health issues have motivated the proposition of eco-friendly alternatives. Thus, we aimed to explore the potential use of Desmostachya bipinnata for the biosynthesis of TiO2NPs and evaluate their larvicidal and pupicidal activity of target (Aedes aegypti and Spodoptera litura) and acute toxicity in non-target organisms (Toxorhynchites splendens and Eisenia fetida), at distinct concentrations, after 24 h of exposure. The characterization of the biosynthesized TiO2NPs was carried out by FT-IR, XRD, SEM, and EDX analysis. Under the UV-vis spectrum analysis, a sharp peak was recorded at 200 to 800 nm, which indicated the production of TiO2NPs by the plant extract. The SEM analysis revealed that the synthesized TiO2NPs were spherical with a diameter of 36.4 nm and were detected in the XRD spectrum analysis related to the TiO2NPs. The highest percentage of mortality recorded at 900 μg/mL was 96 % and 94 % in the 2nd instar of A. aegypti and S. litura larvae, respectively, and exhibited the LC50 and LC90 values 5 of 458.79 and 531.01 μg/mL, respectively. The biosynthesized TiO2NPs showed concentration-dependent increased pupal lethality for both A. aegypti and S. litura. We also observed increased detoxification enzyme activity (α esterase, β esterase, and glutathione-S-transferase) of A. aegypti and S. litura exposed to different concentrations of biosynthesized TiO2NPs as histopathological changes in the midgut region of these animals. On the other hand, the mortality rate of non-target organisms (T. splendens and E. fetida) was lower when exposed to TiO2NPs, compared to the high lethality induced by synthetic pesticides (cypermethrin and monocrotophos for E. fetida; and cypermethrin and temphos for T. splendens). Thus, our study provides pioneering evidence on the potential use of D. bipinnata-mediated TiO2NPs for controlling mosquito vectors and agricultural pest management.
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Affiliation(s)
- Narayanan Shyam-Sundar
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India; Department of Zoology, Sri Paramakalyani College, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India
| | - Sengodan Karthi
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India; Department of Entomology, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, USA
| | - Sengottayan Senthil-Nathan
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India.
| | | | | | - Haridoss Sivanesh
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India
| | - Kanagaraj Muthu-Pandian Chanthini
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India
| | - Vethamonickam Stanley-Raja
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India
| | - Ramakrishnan Ramasubramanian
- Division of Biopesticides and Environmental Toxicology, Sri Paramakalyani Centre for Excellence in Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tirunelveli, Tamil Nadu 627 412, India
| | - Ahmed Abdel-Megeed
- Department of Plant Protection, Faculty of Agriculture Saba Basha, Alexandria University, Egypt
| | - Guilherme Malafaia
- Laboratory of Toxicology Applied to the Environment, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Conservation of Cerrado Natural Resources, Goiano Federal Institute, Urutaí, GO, Brazil; Post-Graduation Program in Ecology, Conservation, and Biodiversity, Federal University of Uberlândia, Uberlândia, MG, Brazil; Post-Graduation Program in Biotechnology and Biodiversity, Federal University of Goiás, Goiânia, GO, Brazil.
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5
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Evaluation of potential antioxidant and effect of biomimetic nanoscale silver particles on opportunistic fungi. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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6
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Chinnaraj S, Palani V, Maluventhen V, Chandrababu R, Soundarapandian K, Kaliannan D, Rathinasamy B, Liu WC, Balasubramanian B, Arumugam M. Silver nanoparticle production mediated by Goniothalamus wightii extract: characterization and their potential biological applications. PARTICULATE SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1080/02726351.2022.2123752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Santhosh Chinnaraj
- Department of Botany, Ethnopharmacology and Algal Biotechnology Laboratory, School of Life Sciences, Periyar University, Salem, Tamil Nadu, India
| | - Vino Palani
- Department of Botany, Ethnopharmacology and Algal Biotechnology Laboratory, School of Life Sciences, Periyar University, Salem, Tamil Nadu, India
| | - Viji Maluventhen
- Deparment of Botany, Thiagarajar College, Madurai, Tamilnadu, India
| | - Rejeeth Chandrababu
- Department of Biochemistry, School of Life Sciences, Periyar University, Salem, Tamil Nadu, India
| | - Kannan Soundarapandian
- Department of Zoology, Division of Cancer Nanomedicine, School of Life Sciences, Periyar University, Salem, Tamil Nadu, India
| | - Durairaj Kaliannan
- Department of Environmental Science, School of Life Sciences, Periyar University, Salem, India
| | - Baskaran Rathinasamy
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Wen-Chao Liu
- Department of Animal Science, College of Agriculture, Guangdong Ocean University, Zhanjiang, Guangdong, P. R. China
| | | | - Maruthupandian Arumugam
- Department of Botany, Ethnopharmacology and Algal Biotechnology Laboratory, School of Life Sciences, Periyar University, Salem, Tamil Nadu, India
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7
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Hosny M, Fawzy M, Eltaweil AS. Phytofabrication of bimetallic silver-copper/biochar nanocomposite for environmental and medical applications. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 316:115238. [PMID: 35576706 DOI: 10.1016/j.jenvman.2022.115238] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/15/2022] [Accepted: 05/02/2022] [Indexed: 05/28/2023]
Abstract
In the current study, a novel, green, low-cost, and sustainable path for the phyto-fabrication of Ag-Cu biochar nanocomposite (Ag-Cu/biochar) by Atriplex halimus biomass and aqueous extract is described. Surface plasmon resonance peaks were detected at 450 nm and 580 nm signifying the formation of both silver and copper nanoparticles, respectively on the biochar surface. XRD analysis confirmed the crystal structure of the phytosynthesized Ag-Cu/biochar whereas FT-IR, SEM, EDX, and XPS analyses confirmed the successful phytofabrication of the composite. Ag and Cu nanoparticles loaded on the biochar surface were almost spherically-shaped with a particle size ranging from 25 nm to 45 nm. Zeta potential of -25.5 mV showed the stability of Ag-Cu/biochar. The potential of this novel nanocomposite in the removal of doxycycline (DOX) was evident under different conditions as it reached nearly 100% under the optimum reaction conditions (DOX concentration; 50 ppm, pH; 9, a dose of Ag-Cu/biochar; 0.01 g, temperature; 25 °C, and H2O2 concentration; 100 mM). The promising regeneration of Ag-Cu/biochar was evident as the removal efficiency was 81% after 6 consecutive cycles. Ag-Cu/biochar was also shown an excellent antimicrobial activity against gram-negative bacteria as well a promising antioxidant activity.
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Affiliation(s)
- Mohamed Hosny
- Green Technology Group, Environmental Sciences Department, Faculty of Science, Alexandria University, 21511, Alexandria, Egypt.
| | - Manal Fawzy
- Green Technology Group, Environmental Sciences Department, Faculty of Science, Alexandria University, 21511, Alexandria, Egypt; National Egyptian Biotechnology Experts Network, National Egyptian Academy for Scientific Research and Technology, Egypt.
| | - Abdelazeem S Eltaweil
- Department of Chemistry, Faculty of Science, Alexandria University, 21321, Alexandria, Egypt.
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8
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Biomimetic green approach on the synthesis of silver nanoparticles using Calotropis gigantea leaf extract and its biological applications. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02513-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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9
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El-Bendary MA, Afifi SS, Moharam ME, Abo Elsoud MM, Gawdat NA. Optimization of Bacillus subtilis growth parameters for biosynthesis of silver nanoparticles by using response surface methodology. Prep Biochem Biotechnol 2022; 53:183-194. [PMID: 35416757 DOI: 10.1080/10826068.2022.2056899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Silver nanoparticles (AgNPs) are among the most widely biosynthesized and used nanomaterials. They have different unique properties and a wide range of applications. This study is concerned with optimization of the growth conditions of Bacillus subtilis NRC1 for the biosynthesis of AgNPs using two designs of response surface methodology (RSM) statistical analysis. The data obtained from Plackett-Burman design (PBD) followed by central composite design (CCD), showed a good agreement between the experimental and predicted values of AgNPs biosynthesis. The optimum conditions were 0.7% (w/v) casein hydrolysate, 5% dextrin (w/v), pH 7.5 and 57 × 106 CFU/ml inoculum size. The model was highly valid and could be applied with a confidence factor of 99.47%. Minimal inhibitory concentration (MIC) of these AgNPs synthesized using the extracellular filtrate after growth of Bacillus subtilis NRC1 in the optimized medium was found to be 41-43µg/ml for all tested microorganisms with exception of Pseudomonas aeruginosa where MIC was 169 µg/ml.
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Affiliation(s)
- Magda A El-Bendary
- Department of Microbial Chemistry, Biotechnology Research Institute, National Research Centre, Giza, Egypt
| | - Salwa S Afifi
- Department of Microbiology and Immunology, Faculty of Pharmacy for Girls, Al-Azhar University, Cairo, Egypt
| | - Maysa E Moharam
- Department of Microbial Chemistry, Biotechnology Research Institute, National Research Centre, Giza, Egypt
| | - Mostafa M Abo Elsoud
- Department of Microbial Biotechnology, Biotechnology Research Institute, National Research Centre, Giza, Egypt
| | - Noha A Gawdat
- Department of Microbial Chemistry, Biotechnology Research Institute, National Research Centre, Giza, Egypt
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Hashemi Z, Mizwari ZM, Mohammadi-Aghdam S, Mortazavi-Derazkola S, Ali Ebrahimzadeh M. Sustainable green synthesis of silver nanoparticles using Sambucus ebulus phenolic extract (AgNPs@SEE): Optimization and assessment of photocatalytic degradation of methyl orange and their in vitro antibacterial and anticancer activity. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103525] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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11
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Rodriguez-Gonzalez C, Ospina-Betancourth C, Sanabria J. High Resistance of a Sludge Enriched with Nitrogen-Fixing Bacteria to Ammonium Salts and Its Potential as a Biofertilizer. Bioengineering (Basel) 2021; 8:bioengineering8050055. [PMID: 34062837 PMCID: PMC8147367 DOI: 10.3390/bioengineering8050055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/23/2021] [Accepted: 04/27/2021] [Indexed: 01/21/2023] Open
Abstract
The increasing use of chemical fertilizers causes the loss of natural biological nitrogen fixation in soils, water eutrophication and emits more than 300 Mton CO2 per year. It also limits the success of external bacterial inoculation in the soil. Nitrogen fixing bacteria can be inhibited by the presence of ammonia as its presence can inhibit biological nitrogen fixation. Two aerobic sludges from wastewater treatment plants (WWTP) were exposed to high ammonium salts concentrations (>450 mg L−1 and >2 dS m−1). Microbial analysis after treatment through 16S pyrosequencing showed the presence of Fluviicola sp. (17.70%), a genus of the Clostridiaceae family (11.17%), and Azospirillum sp. (10.42%), which were present at the beginning with lower abundance. Denaturing gradient gel electrophoresis (DGGE) analysis based on nifH genes did not show changes in the nitrogen-fixing population. Nitrogen-Fixing Bacteria (NFB) were identified and associated with other microorganisms involved in the nitrogen cycle, presumably for survival at extreme conditions. The potential use of aerobic sludges enriched with NFB is proposed as an alternative to chemical fertilizer as this bacteria could supplement nitrogen to the plant showing competitive results with chemical fertilization.
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Affiliation(s)
- Claudia Rodriguez-Gonzalez
- School of Environmental & Natural Resources Engineering, Engineering Faculty, Universidad del Valle, Cali 760032, Colombia;
| | | | - Janeth Sanabria
- School of Environmental & Natural Resources Engineering, Engineering Faculty, Universidad del Valle, Cali 760032, Colombia;
- Correspondence: ; Tel.: +57-2-3302-0002
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