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Yousif NM, Gomaa OM. Screen-printed biosensor based on electro-polymerization of bio-composite for nitrate detection in aqueous media. ENVIRONMENTAL TECHNOLOGY 2024; 45:2363-2374. [PMID: 36689460 DOI: 10.1080/09593330.2023.2172618] [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: 08/09/2022] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
Bacillus sp. possessing a periplasmic nitrate reductase was used as a recognition element to develop a nitrate biosensor. The bacteria was embedded within a polyaniline (PANI) electro-conductive matrix via electro-polymerization on miniaturized carbon screen-printed electrodes (SPE) at 100 mV/s and scan rate from -0.35 V to + 1.7 V. Surface medication of SPE was verified via Fourier Transform Infrared spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). The optimal bacterial density was OD600 1.2. To enhance the biosensors performance, Bacillus sp. was (1) grown in riboflavin (RF) inducing media as an endogenous redox mediator and (2) exposed to different gamma radiation doses as a physical method to increase electron transfer. Results show a link between exposing cells to gamma irradiation stress, this was evident by electron spin resonance (ESR) and changes in FTIR spectrum, in addition to the increase in catalase enzyme. The nitrate limit of detection (LOD) was 0.5-25 mg/L for non-irradiated RF induced immobilized cells and LOD was 0.5-75 mg/L nitrate for 2 kGy gamma irradiated cells. The prepared biosensor showed acceptable reproducibility and multiple usages after storage at 4°C over 3 months. Low cost and simple preparation allow the biosensor to be mass-produced as a disposable device. Bacillus sp. and its endogenous redox mediator immobilized within polyaniline are good candidates for the improvement of amperometric biosensors for the quantification of nitrate in aqueous solutions.
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Affiliation(s)
- Nashwa M Yousif
- Solid State Physics and Accelerators Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
| | - Ola M Gomaa
- Radiation Microbiology Department, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority, Cairo, Egypt
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2
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Khandelwal R, Keelka S, Jain N, Jain P, Kumar Sharma M, Kaushik P. Biosorption of arsenic (III) from aqueous solution using calcium alginate immobilized dead biomass of Acinetobacter sp. strain Sp2b. Sci Rep 2024; 14:9972. [PMID: 38693342 PMCID: PMC11063054 DOI: 10.1038/s41598-024-60329-7] [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: 10/05/2023] [Accepted: 04/22/2024] [Indexed: 05/03/2024] Open
Abstract
This study presents a novel biosorbent developed by immobilizing dead Sp2b bacterial biomass into calcium alginate (CASp2b) to efficiently remove arsenic (AsIII) from contaminated water. The bacterium Sp2b was isolated from arsenic-contaminated industrial soil of Punjab, a state in India. The strain was designated Acinetobacter sp. strain Sp2b as per the 16S rDNA sequencing, GenBank accession number -OP010048.The CASp2b was used for the biosorption studies after an initial screening for the biosorption capacity of Sp2b biomass with immobilized biomass in both live and dead states. The optimum biosorption conditions were examined in batch experimentations with contact time, pH, biomass, temperature, and AsIII concentration variables. The maximum biosorption capacity (qmax = 20.1 ± 0.76 mg/g of CA Sp2b) was obtained at pH9, 35 ̊ C, 20 min contact time, and 120 rpm agitation speed. The isotherm, kinetic and thermodynamic modeling of the experimental data favored Freundlich isotherm (R2 = 0.941) and pseudo-2nd-order kinetics (R2 = 0.968) with endothermic nature (ΔH° = 27.42) and high randomness (ΔS° = 58.1).The scanning electron microscopy with energy dispersive X-ray (SEM-EDX) analysis indicated the As surface binding. The reusability study revealed the reasonable usage of beads up to 5 cycles. In conclusion, CASp2b is a promising, efficient, eco-friendly biosorbent for AsIII removal from contaminated water.
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Affiliation(s)
- Renu Khandelwal
- Centre for Advanced Studies, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, 302004, India
| | - Sneha Keelka
- Centre for Advanced Studies, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, 302004, India
| | - Neha Jain
- Centre for Advanced Studies, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, 302004, India
| | - Prachi Jain
- Centre for Advanced Studies, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, 302004, India
| | - Mukesh Kumar Sharma
- Department of Zoology, SPC Government College, Ajmer, Rajasthan, 305001, India
| | - Pallavi Kaushik
- Centre for Advanced Studies, Department of Zoology, University of Rajasthan, Jaipur, Rajasthan, 302004, India.
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3
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Metryka O, Wasilkowski D, Dulski M, Adamczyk-Habrajska M, Augustyniak M, Mrozik A. Metallic nanoparticle actions on the outer layer structure and properties of Bacillus cereus and Staphylococcus epidermidis. CHEMOSPHERE 2024; 354:141691. [PMID: 38484999 DOI: 10.1016/j.chemosphere.2024.141691] [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: 01/08/2024] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 03/19/2024]
Abstract
Although the antimicrobial activity of nanoparticles (NPs) penetrating inside the cell is widely recognised, the toxicity of large NPs (>10 nm) that cannot be translocated across bacterial membranes remains unclear. Therefore, this study was performed to elucidate the direct effects of Ag-NPs, Cu-NPs, ZnO-NPs and TiO2-NPs on relative membrane potential, permeability, hydrophobicity, structural changes within chemical compounds at the molecular level and the distribution of NPs on the surfaces of the bacteria Bacillus cereus and Staphylococcus epidermidis. Overall analysis of the results indicated the different impacts of individual NPs on the measured parameters in both strains depending on their type and concentration. B. cereus proved to be more resistant to the action of NPs than S. epidermidis. Generally, Cu-NPs showed the most substantial toxic effect on both strains; however, Ag-NPs exhibited negligible toxicity. All NPs had a strong affinity for cell surfaces and showed strain-dependent characteristic dispersion. ATR-FTIR analysis explained the distinctive interactions of NPs with bacterial functional groups, leading to macromolecular structural modifications. The results presented provide new and solid evidence for the current understanding of the interactions of metallic NPs with bacterial membranes.
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Affiliation(s)
- Oliwia Metryka
- Doctoral School, University of Silesia, Bankowa 14, 40-032, Katowice, Poland.
| | - Daniel Wasilkowski
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellońska 28, 40-032, Katowice, Poland
| | - Mateusz Dulski
- Institute of Materials Science, Silesian Center for Education and Interdisciplinary Research, University of Silesia in Katowice, 75 Pulku Piechoty 1A, 41-500, Chorzów, Poland
| | - Małgorzata Adamczyk-Habrajska
- Institute of Materials Science, Silesian Center for Education and Interdisciplinary Research, University of Silesia in Katowice, 75 Pulku Piechoty 1A, 41-500, Chorzów, Poland
| | - Maria Augustyniak
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellońska 28, 40-032, Katowice, Poland
| | - Agnieszka Mrozik
- Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia, Jagiellońska 28, 40-032, Katowice, Poland.
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4
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Mainuddin, Kumar A, Ratnesh RK, Singh J, Dumoga S, Sharma N, Jindal A. Physical characterization and bioavailability assessment of 5-fluorouracil-based nanostructured lipid carrier (NLC): In vitro drug release, Hemolysis, and permeability modulation. Med Oncol 2024; 41:95. [PMID: 38526657 DOI: 10.1007/s12032-024-02319-3] [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: 12/13/2023] [Accepted: 01/31/2024] [Indexed: 03/27/2024]
Abstract
5-Fluorouracil (5-FU) is an anticancer agent belonging to BCS Class III that exhibits poor release characteristics and low retention in the biological system. The main objective of this investigation was to develop a drug delivery system, i.e., Nanostructure Lipid Carriers (NLCs) loaded with 5-FU to prolong its biological retention through 5-FU-loaded NLCs (5-FUNLC) were designed to manipulate physicochemical characteristics and assessment of in vitro and in vivo performance. The developed NLCs underwent comprehensive characterization, including assessments for particle size, zeta potential, morphological evaluation, and FT-IR spectroscopy. Additionally, specific evaluations were conducted for 5-FUNLCs, encompassing analyses for encapsulation efficiency of the drug, release characteristics in PBS at pH 6.8, and stability study. The lipophilic character of 5-FUNLC was confirmed through the measurement of the partition coefficient (log P). 5-FUNLCs were observed as spherical-shaped particles with a mean size of 300 ± 25 nm. The encapsulation efficiency was determined to be 89%, indicating effective drug loading within the NLCs. Furthermore, these NLCs exhibited a sustained release nature lasting up to 3-4 h, indicating their potential for controlled drug release over time. Lipid components were biocompatible with the 5-FU to determine thermal transition temperature and show good stability for 30 days. Additionally, an in vitro hemolysis study that confirmed the system did not cause any destruction to the RBCs during intravenous administration. The drug's gut permeability was assessed utilizing the optimized 5-FUNLC (F2) in comparison to 5-FU through the intestine or gut sac model (in the apical to basolateral direction, A → B). The permeability coefficient was measured as 4.91 × 10-5 cm/h with a significant difference. Additionally, the antioxidant potential of the NLCs was demonstrated through the DPPH method. The NLCs' performance was further assessed through in vivo pharmacokinetic studies on Wistar Rats, resulting in a 1.5-fold enhancement in their activity compared to free 5-FU. These NLCs offer improved drug solubility and sustained release, which collectively contribute to enhanced therapeutic outcomes and modulate bioavailability. The study concludes by highlighting the potential of 5-FUNLC as an innovative and efficient drug delivery system. The findings suggest that further preclinical investigations are warranted, indicating a promising avenue for the development of more effective and well-tolerated treatments for cancer.
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Affiliation(s)
- Mainuddin
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, NH 58 Near Baghpat Bypass, Meerut, UP, 250005, India
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Sector 125, Noida, Uttar Pradesh, 201301, India
| | - Anoop Kumar
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, NH 58 Near Baghpat Bypass, Meerut, UP, 250005, India
| | - Ratneshwar Kumar Ratnesh
- Department of Electronics and Communication Engineering, Meerut Institute of Engineering and Technology, NH 58 Near Baghpat Bypass, Meerut, UP, 250005, India.
| | - Jay Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, UP, 221005, India
| | - Shweta Dumoga
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, NH 58 Near Baghpat Bypass, Meerut, UP, 250005, India
| | - Nitin Sharma
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University, Sector 125, Noida, Uttar Pradesh, 201301, India
| | - Amulya Jindal
- Department of Pharmaceutical Technology, Meerut Institute of Engineering and Technology, NH 58 Near Baghpat Bypass, Meerut, UP, 250005, India
- Department of Pharmacy, Meerut Institute of Technology, NH-58 Near Partapur Bypass, Meerut, UP, 250005, India
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5
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Roy V, Saha BK, Adhikary S, Chaki MG, Sarkar M, Pal A. Isolation, characterization, identification, genomics and analyses of bioaccumulation and biosorption potential of two arsenic-resistant bacteria obtained from natural environments. Sci Rep 2024; 14:5716. [PMID: 38459150 PMCID: PMC10924095 DOI: 10.1038/s41598-024-56082-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 03/01/2024] [Indexed: 03/10/2024] Open
Abstract
Arsenic (As) is a significant contaminant whose unrestrained entrance into different ecosystems has created global concern. At the cellular level, As forms unsteady intermediates with genetic materials and perturbs different metabolic processes and proper folding of proteins. This study was the first in this region to explore, isolate, screen systematically, and intensively characterize potent As-tolerant bacterial strains from natural environments near Raiganj town of Uttar Dinajpur, West Bengal. In this study, two potent Gram-negative bacterial strains with high tolerance to the poisonous form of As, i.e., As(III) and As(V), were obtained. Both the isolates were identified using biochemical tests and 16S rRNA gene sequencing. These bacteria oxidized toxic As(III) into less poisonous As(V) and depicted tolerance towards other heavy metals. Comparative metabolic profiling of the isolates in control and As-exposed conditions through Fourier-transform infrared spectroscopy showed metabolic adjustments to cope with As toxicity. The metal removal efficiency of the isolates at different pH showed that one of the isolates, KG1D, could remove As efficiently irrespective of changes in the media pH. In contrast, the efficiency of metal removal by PF14 was largely pH-dependent. The cell mass of both the isolates was also found to favourably adsorb As(III). Whole genome sequence analysis of the isolates depicted the presence of the arsRBC genes of the arsenic operon conferring resistance to As. Owing to their As(III) oxidizing potential, high As bioaccumulation, and tolerance to other heavy metals, these bacteria could be used to bioremediate and reclaim As-contaminated sites.
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Affiliation(s)
- Vivek Roy
- Microbiology and Computational Biology Laboratory, Department of Botany, Raiganj University, Raiganj, West Bengal, 733134, India
| | - Barnan Kumar Saha
- Microbiology and Computational Biology Laboratory, Department of Botany, Raiganj University, Raiganj, West Bengal, 733134, India
| | - Samarpita Adhikary
- Microbiology and Computational Biology Laboratory, Department of Botany, Raiganj University, Raiganj, West Bengal, 733134, India
| | - Madhumita G Chaki
- Microbiology and Computational Biology Laboratory, Department of Botany, Raiganj University, Raiganj, West Bengal, 733134, India
| | - Monalisha Sarkar
- Microbiology and Computational Biology Laboratory, Department of Botany, Raiganj University, Raiganj, West Bengal, 733134, India
| | - Ayon Pal
- Microbiology and Computational Biology Laboratory, Department of Botany, Raiganj University, Raiganj, West Bengal, 733134, India.
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6
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Verma H, Mihooliya KN, Nandal J, Sahoo DK. Studies on a new antimicrobial peptide from Vibrio proteolyticus MT110. Prep Biochem Biotechnol 2024; 54:193-206. [PMID: 37184469 DOI: 10.1080/10826068.2023.2209892] [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] [Indexed: 05/16/2023]
Abstract
The marine environment is known for its vast diversity of the microbial population; however, less explored for bioactive compounds. In this study, an AMP produced by a new marine isolate, Vibrio proteolyticus MT110, showed broad-spectrum antimicrobial activity against Gram-positive and Gram-negative bacteria. The AMP was purified to homogeneity using ethyl acetate extraction followed by RP-HPLC, and LC-MS analysis showed its molecular weight as 980 Da. The MIC of AMP (peptide-MT110) was obtained in the 7.81-31.25 µg/mL range against different indicator strains. Peptide-MT110 showed stability of its antimicrobial activity at 15-121 °C and pH 4-10 and in the presence of various hydrolytic enzymes. The peaks at 1536 cm-1 and 1712 cm-1 wavenumbers in FTIR spectra confirmed the peptidic nature of AMP, and its amino acid analysis confirmed the presence of tyrosine and isoleucine. The antibacterial activity of peptide-MT110 is confirmed by PI assay and TEM. The optimization of peptide-MT110 production using statistical methods resulted in a 2.64-fold higher production. The physicochemical properties and stability in wide pH and temperature ranges showed the potential of peptide-MT110 for its development as a drug candidate. This is believed to be the first report on an AMP from Vibrio proteolyticus.
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Affiliation(s)
- Himanshu Verma
- Biochemical Engineering Research and Process Development Centre, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Kanti N Mihooliya
- Biochemical Engineering Research and Process Development Centre, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Jitender Nandal
- Biochemical Engineering Research and Process Development Centre, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Debendra K Sahoo
- Biochemical Engineering Research and Process Development Centre, CSIR-Institute of Microbial Technology, Chandigarh, India
- Accademy of Scientific and Innovative Research, New Delhi, India
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7
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Nishshankage K, Buddhinie PKC, Ezzat AO, Zhang X, Vithanage M. Antifungal efficacy of biogenic waste derived colloidal/nanobiochar against Colletotrichum gloeosporioides species complex. ENVIRONMENTAL RESEARCH 2024; 241:117621. [PMID: 37952852 DOI: 10.1016/j.envres.2023.117621] [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: 08/06/2023] [Revised: 10/14/2023] [Accepted: 11/07/2023] [Indexed: 11/14/2023]
Abstract
Anthracnose caused by Colletotrichum spp. usually resulting in significant postharvest losses in the banana production chain. This study investigated the inhibitory effect of corn cob colloidal/nanobiochar (CCN) and Gliricidia sepium wood colloidal/nanobiochar (GCN) on the Colletotrichum gloeosporioides species complex. The CCN and GCN materials were synthesized and thoroughly characterized using various techniques, including UV-Vis and Fluorescence spectroscopy. Then after the fungal growth was examined on Potato Dextrose Agar (PDA) media supplemented with different CCN and GCN concentrations of 0.4 - 20 g/L and CCN and GCN with zeolite at various weight percentages of 10% to 50% w/w. Results from the characterization revealed that CCN exhibited a strong UV absorbance peak value of 0.630 at 203 nm, while GCN had a value of 0.305 at 204 nm. In terms of fluorescence emission, CCN displayed a strong peak intensity of 16,371 at 412 nm, whereas GCN exhibited a strong peak intensity of 32,691 at 411 nm. Both CCN and GCN, at concentrations ranging from 1 to 8 and 0.4 - 20 g/L, respectively, displayed notable reductions in mycelial densities and inhibited fungal growth compared to the control. Zeolite incorporation further enhanced the antifungal effect. To the best of our knowledge, this is the first study to demonstrate the promising potential of colloidal/nanobiochar in effectively controlling anthracnose disease. The synthesized CCN and GCN demonstrate promising antifungal potential against Colletotrichum gloeosporioides species complex, offering the potential for the development of novel and effective antifungal strategies for controlling anthracnose disease in Musa spp.
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Affiliation(s)
- Kulathi Nishshankage
- Department of Botany, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka; Ecosphere Resilience Research Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka
| | - P K C Buddhinie
- Department of Botany, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka
| | - Abdelrahman O Ezzat
- Department of Chemistry, College of Sciences, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Xiaokai Zhang
- Institute of Environmental Processes and Pollution Control, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, 214122, China
| | - Meththika Vithanage
- Ecosphere Resilience Research Center, Faculty of Applied Sciences, University of Sri Jayewardenepura, Nugegoda, 10250, Sri Lanka; The Institute of Agriculture, The University of Western Australia, Perth, Australia.
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Mohamad Sukri N, Abdul Manas NH, Jaafar NR, A Rahman R, Abdul Murad AM, Md Illias R. Effects of electrospun nanofiber fabrications on immobilization of recombinant Escherichia coli for production of xylitol from glucose. Enzyme Microb Technol 2024; 172:110350. [PMID: 37948908 DOI: 10.1016/j.enzmictec.2023.110350] [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: 08/21/2023] [Revised: 10/13/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023]
Abstract
A suitable nanofiber sheet was formulated and developed based on its efficacy in the immobilization of recombinant Escherichia coli (E. coli) to enhance xylitol production. The effects of different types of nanofibers and solvents on cell immobilization and xylitol production were studied. The most applicable nanofiber membrane was selected via preliminary screening of four types of nanofiber membrane, followed by the selection of six different solvents. Polyvinylidene fluoride (PVDF) nanofiber sheet synthesized using dimethylformamide (DMF) solvent was found to be the most suitable carrier for immobilization and xylitol production. The thin, beaded PVDF (DMF) nanofibers were more favourable for microbial adhesion, with the number of immobilized cells as high as 96 × 106 ± 3.0 cfu/ml. The attraction force between positively charged PVDF nanofibers and the negatively charged E. coli indicates that the electrostatic interaction plays a significant role in cell adsorption. The use of DMF has also produced PVDF nanofibers biocatalyst capable of synthesizing the highest xylitol concentration (2.168 g/l) and productivity (0.090 g/l/h) and 55-69% reduction in cell lysis compared with DMSO solvent and free cells. This finding suggests that recombinant E. coli immobilized on nanofibers shows great potential as a whole-cell biocatalyst for xylitol production.
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Affiliation(s)
- Norhamiza Mohamad Sukri
- Department of Bioprocess Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Nor Hasmaliana Abdul Manas
- Department of Bioprocess Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia; Institute of Bioproduct Development, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Nardiah Rizwana Jaafar
- Department of Bioprocess Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Roshanida A Rahman
- Department of Bioprocess Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia; Institute of Bioproduct Development, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Abdul Munir Abdul Murad
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor, Malaysia
| | - Rosli Md Illias
- Department of Bioprocess Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
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Hanif M, Munir N, Abideen Z, Dias DA, Hessini K, El-Keblawy A. Enhancing tomato plant growth in a saline environment through the eco-friendly synthesis and optimization of nanoparticles derived from halophytic sources. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:118830-118854. [PMID: 37922085 DOI: 10.1007/s11356-023-30626-1] [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: 03/16/2023] [Accepted: 10/19/2023] [Indexed: 11/05/2023]
Abstract
Using green synthesis methods to produce halophytic nanoparticles presents a promising and cost-effective approach for enhancing plant growth in saline environments, offering agricultural resilience as an alternative to traditional chemical methods. This study focuses on synthesizing zinc oxide (ZnO) nanoparticles derived from the halophyte Withania somnifera, showcasing their potential in ameliorating tomato growth under salinity stress. The biosynthesis of ZnO nanoparticles was initially optimized (i.e., salt concentration, the amount of plant extract, pH, and temperature) using a central composite design (CCD) of response surface methodology (RSM) together with UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and dynamic light scattering (DLS) to comprehensively characterize the biosynthesized ZnO NPs. The central composite design (CCD) based response surface methodology (RSM) was used to optimize the biosynthesis of ZnO nanoparticles (NPs) by adjusting salt concentration, plant extract, pH, and temperature. The ZnO NPs were characterized using UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FESEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and dynamic light scattering (DLS). FT-IR showed an absorption peak of ZnO between 400 and 600 cm-1, while SEM showed irregular shapes ranging between 1.3 and 6 nm. The data of EDX showed the presence of Zn (77.52%) and O (22.48%) levels, which exhibited the high purity synthesized ZnO under saline conditions. Introducing ZnO nanoparticles to tomato plants resulted in a remarkable 2.3-fold increase in shoot length in T23 (100 mg/L ZnO nanoparticles + 50 mM NaCl). There was an observable increase in foliage at T2 (20 mg L-1 ZnO) and T23 (100 mg L-1 ZnO-NPs + 50 mM NaCl). Tomato plants treated with T2 (20 mg L-1 ZnO) and T23 (100 mg L-1 ZnO-NPs + 50 mM NaCl) improved root elongation compared to the control plant group. Both fresh and dry leaf masses were significantly improved in T1 (10 mg L-1 ZnO) by 7.1-fold and T12 (10 mg L-1 ZnO-NPs + 100 mM NaCl) by 0.8-fold. The concentration of Zn was higher in T12 (10 mg L-1 ZnO NPs + 100 mM NaCl) among all treatments. Our findings prove that utilizing ZnO nanoparticles under saline conditions effectively promotes tomato plants' growth, thereby mitigating the negative impacts of salt stress.
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Affiliation(s)
- Maria Hanif
- Department of Biotechnology, Lahore College for Women University, Lahore, Pakistan
| | - Neelma Munir
- Department of Biotechnology, Lahore College for Women University, Lahore, Pakistan
| | - Zainul Abideen
- Dr. Muhammad Ajmal Khan Institute of Sustainable Halophyte Utilization, University of Karachi, Karachi, 75270, Pakistan.
| | - Daniel Anthony Dias
- School of Exercise and Nutritional Sciences, Faculty of Health, CASS Food Research Centre, Deakin University, Burwood, VIC, 3125, Australia
| | - Kamel Hessini
- Department of Biology, College of Sciences, Taif University, P.O. Box 11099, 21944, Taif, Saudi Arabia
| | - Ali El-Keblawy
- Department of Applied Biology, College of Sciences, University of Sharjah, P.O. Box 27272, Sharjah, United Arab Emirates
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10
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Tendenedzai JT, Chirwa EMN, Brink HG. Harnessing selenium nanoparticles (SeNPs) for enhancing growth and germination, and mitigating oxidative stress in Pisum sativum L. Sci Rep 2023; 13:20379. [PMID: 37989844 PMCID: PMC10663618 DOI: 10.1038/s41598-023-47616-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 11/16/2023] [Indexed: 11/23/2023] Open
Abstract
Selenium, an essential micronutrient for plants and animals, can cause selenium toxicity as an oxyanion or at elevated doses. However, the toxic selenite (SeO32-) oxyanion, can be converted into less harmful elemental nano-selenium (Se0), with various practical applications. This research aimed to investigate two methods for reducing SeO32-: abiotic reduction using cell-free extract from Enterococcus spp. (abiotic-SeNPs) and chemical reduction involving L-ascorbic acid (chemical-SeNPs). Analysis with XPS confirmed the presence of Se0, while FTIR analysis identified surface functional groups on all SeNPs. The study evaluated the effects of SeO32-, abiotic-SeNPs, and chemical-SeNPs at different concentrations on the growth and germination of Pisum sativum L. seeds. SeO32- demonstrated detrimental effects on germination at concentrations of 1 ppm (germination index (GI) = 0.3). Conversely, both abiotic- and chemical-SeNPs had positive impacts on germination, with GI > 120 at 10 ppm. Through the DPPH assay, it was discovered that SeNPs exhibited superior antioxidant capabilities at 80 ppm, achieving over 70% inhibition, compared to SeO32- (less than 20% inhibition), therefore evidencing significant antioxidant properties. This demonstrates that SeNPs have the potential to be utilized as an agricultural fertilizer additive, benefiting seedling germination and development, while also protecting against oxidative stress.
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Affiliation(s)
- Job T Tendenedzai
- Department of Chemical Engineering, Faculty of Engineering, Built Environment and Information Technology, University of Pretoria, Pretoria, 0002, South Africa
| | - Evans M N Chirwa
- Department of Chemical Engineering, Faculty of Engineering, Built Environment and Information Technology, University of Pretoria, Pretoria, 0002, South Africa
| | - Hendrik G Brink
- Department of Chemical Engineering, Faculty of Engineering, Built Environment and Information Technology, University of Pretoria, Pretoria, 0002, South Africa.
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El-Sheekh MM, AlKafaas SS, Rady HA, Abdelmoaty BE, Bedair HM, Ahmed AA, El-Saadony MT, AbuQamar SF, El-Tarabily KA. How Synthesis of Algal Nanoparticles Affects Cancer Therapy? - A Complete Review of the Literature. Int J Nanomedicine 2023; 18:6601-6638. [PMID: 38026521 PMCID: PMC10644851 DOI: 10.2147/ijn.s423171] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 09/22/2023] [Indexed: 12/01/2023] Open
Abstract
The necessity to engineer sustainable nanomaterials for the environment and human health has recently increased. Due to their abundance, fast growth, easy cultivation, biocompatibility and richness of secondary metabolites, algae are valuable biological source for the green synthesis of nanoparticles (NPs). The aim of this review is to demonstrate the feasibility of using algal-based NPs for cancer treatment. Blue-green, brown, red and green micro- and macro-algae are the most commonly participating algae in the green synthesis of NPs. In this process, many algal bioactive compounds, such as proteins, carbohydrates, lipids, alkaloids, flavonoids and phenols, can catalyze the reduction of metal ions to NPs. In addition, many driving factors, including pH, temperature, duration, static conditions and substrate concentration, are involved to facilitate the green synthesis of algal-based NPs. Here, the biosynthesis, mechanisms and applications of algal-synthesized NPs in cancer therapy have been critically discussed. We also reviewed the effective role of algal synthesized NPs as anticancer treatment against human breast, colon and lung cancers and carcinoma.
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Affiliation(s)
- Mostafa M El-Sheekh
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Samar Sami AlKafaas
- Molecular Cell Biology Unit, Division of Biochemistry, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Hadeer A Rady
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Bassant E Abdelmoaty
- Molecular Cell Biology Unit, Division of Biochemistry, Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Heba M Bedair
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Abdelhamid A Ahmed
- Plastic Surgery Department, Faculty of Medicine, Tanta University, Tanta, 31527, Egypt
| | - Mohamed T El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Synan F AbuQamar
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, 15551, United Arab Emirates
| | - Khaled A El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, 15551, United Arab Emirates
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12
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Sharma D, Radha, Kumar M, Andrade-Cetto A, Puri S, Kumar A, Thakur M, Chandran D, Pundir A, Prakash S, Pandiselvam R, Sandhu S, Khosla A, Kumar S, Lorenzo JM. Chemical Diversity and Medicinal Potential of Vitex negundo L.: From Traditional Knowledge to Modern Clinical Trials. Chem Biodivers 2023; 20:e202301086. [PMID: 37851484 DOI: 10.1002/cbdv.202301086] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/27/2023] [Accepted: 10/01/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND In Vedic context, Nirgundi (V. negundo) has been utilized for its anti-inflammatory, analgesic, and wound-healing properties. It has been employed to alleviate pain, treat skin conditions, and address various ailments. The plant's leaves, roots, and seeds have all found applications in traditional remedies. The knowledge of Nirgundi's medicinal benefits has been passed down through generations, and it continues to be a part of Ayurvedic and traditional medicine practices in India.
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Affiliation(s)
- Diksha Sharma
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Radha
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR- Central Institute for Research on Cotton Technology, Mumbai, 400019, India
- Department of Biology, East Carolina University, Greenville, 27858, USA
| | - Adolfo Andrade-Cetto
- Laboratorio de Etnofarmacología, Departamento de BiologíaCelular, Facultad de Ciencias, Universidad Nacional Autónoma de México, Av. Universidad 3000, Circuito Exterior S/N, Coyoacán, C.U., Mexico City, 04510, Mexico
| | - Sunil Puri
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Amit Kumar
- GLA University, Mathura, Uttar Pradesh, 281 406, India
| | - Mamta Thakur
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Deepak Chandran
- Department of Animal Husbandry, Government of Kerala, Palakkad, 679335, Kerala, India
| | - Ashok Pundir
- School of Mechanical and Civil Engineering, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Suraj Prakash
- School of Biological and Environmental Sciences, Shoolini University of Biotechnology and Management Sciences, Solan, 173229, India
| | - Ravi Pandiselvam
- Division of Physiology, Biochemistry and Post-Harvest Technology, ICAR - Central Plantation Crops Research Institute (CPCRI), Kasaragod, 671 124, Kerala, India
| | - Surinder Sandhu
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, 141004, India
| | - Ananya Khosla
- Stanford University, 450 Serra Mall, Stanford, California, USA, 94305
| | - Sunil Kumar
- Indian Institute of Farming Systems Research, Modipuram, 250110, India
| | - Jose M Lorenzo
- CentroTecnológico de la Carne de Galicia, rúa Galicia n○ 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, 32900 Ourense, Spain
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13
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Luis Manuel AV, Amar A, Jaime UF, Arnaldo HC. Nature inspired synthesis of magnetite nanoparticle aggregates from natural berthierine. RSC Adv 2023; 13:32054-32062. [PMID: 37916060 PMCID: PMC10617585 DOI: 10.1039/d3ra04065h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 10/19/2023] [Indexed: 11/03/2023] Open
Abstract
We investigate the origin of the magnetite nanoparticle aggregates (MNAs) from the Peña Colorada iron-ore mining district (Mexico) to devise a nature inspired synthesis process. Three types of samples were used: natural MNAs recovered from the mine, concentrated magnetite microparticles as reference material, and thin berthierine films used to synthesize MNAs. The chemical, mineralogical, crystallographic and rock magnetic properties were determined by polarized microscopy, high-resolution transmission electron microscopy, electron microprobe, X-ray diffraction, Mössbauer spectroscopy, and thermomagnetic and hysteresis measurements. MNAs were synthesized in the lab with the following steps. We start with berthierine thin films, which are heated to temperatures between 495 and 510 °C leading to formation of numerous stable magnetite nanocrystals. They grow at a temperature above 650 °C. Space restrictions lead to the formation of dense MNAs. Smaller MNAs, <200 nm, with a Curie temperature of 650 °C, shows superparamagnetic behavior. While larger MNAs, >7 μm, show Curie temperature of 578 °C and ferromagnetic behavior. Based on present observations, we suggest that MNAs in the Peña Colorada iron-ore formed in a marine environment, where berthierine formation was accelerated by Fe-rich hydrothermal springs that supplied iron and increased the temperature. Most notably, our laboratory experiments mimicked natural conditions and were able to successfully nucleate and grow magnetite nanoparticles which developed into MNAs. These MNAs were similar to those recovered from the Peña Colorada iron-ore deposit. This study, thus, provides a nature inspired method for synthesis of magnetite nanoparticles and its aggregates.
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Affiliation(s)
- Alva-Valdivia Luis Manuel
- Laboratorio de Paleomagnetismo, Instituto de Geofísica, Universidad Nacional Autónoma de México Ciudad de México 04510 Mexico
| | - Agarwal Amar
- Department of Earth Sciences, Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Urrutia-Fucugauchi Jaime
- Laboratorio de Paleomagnetismo, Instituto de Geofísica, Universidad Nacional Autónoma de México Ciudad de México 04510 Mexico
| | - Hernández-Cardona Arnaldo
- Posgrado en Ciencias de la Tierra, Instituto de Geofísica, Universidad Nacional Autónoma de México Ciudad de México 04510 Mexico
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14
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Paul D, Pandey A, Neogi S. Bacterial cell permeability study by metal oxide and mixed metal oxide nanoparticles: analysis of the factors contributing to the antibacterial activity of nanoparticles. World J Microbiol Biotechnol 2023; 39:281. [PMID: 37589765 DOI: 10.1007/s11274-023-03712-2] [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: 04/24/2023] [Accepted: 07/21/2023] [Indexed: 08/18/2023]
Abstract
In this work, we investigate the nanoparticle-cell wall interaction by NiO and mixed metal oxide CuO-NiO nanoparticles. We have synthesized and characterized the nanoparticles using XRD, FESEM, EDS, UV vis. spectroscopy, FTIR, Zeta, and TEM analysis in our previous work. Furthermore, a preliminary antibacterial study showed that both the nanoparticles performed very well as antibacterial agents. In this extended work, we investigate the mechanism of interaction of NiO and CuO-NiO nanoparticles with S. aureus and E. coli cells as there are number of studies for antibacterial mechanism of CuO nanoparticles. The uptake of crystal violet dye in the outer bacterial membrane, the release of ß-galactosidase enzyme, and relative electric conductivity assay were used to investigate changes in the permeability and integrity of the cell membrane. Superoxide ions, which are produced intracellularly as ROS by nanoparticles, severely damage bacterial membranes. Zeta potential measurement, which resulted in surface charge neutralization, proved membrane instability. FTIR analysis was used to identify changes in the proteins, carbohydrates, and fatty acids that make up the chemical composition of cell surfaces. AFM imaging demonstrated extensive alteration of the nanomechanical and surface characteristics. Confocal microscopy examination supported the DNA fragmentation and nanoparticle-cell adhesion. Due to their enhanced antibacterial activity when compared to monometallic oxide nanoparticles, this study demonstrated that mixed metal oxides can be employed in the health and biomedical sectors.
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Affiliation(s)
- Debashri Paul
- Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Ankur Pandey
- Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
| | - Sudarsan Neogi
- Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
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15
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Becker L, Sturm J, Eiden F, Holtmann D. Analyzing and understanding the robustness of bioprocesses. Trends Biotechnol 2023; 41:1013-1026. [PMID: 36959084 DOI: 10.1016/j.tibtech.2023.03.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 02/27/2023] [Accepted: 03/01/2023] [Indexed: 03/25/2023]
Abstract
The robustness of bioprocesses is becoming increasingly important. The main driving forces of this development are, in particular, increasing demands on product purities as well as economic aspects. In general, bioprocesses exhibit extremely high complexity and variability. Biological systems often have a much higher intrinsic variability compared with chemical processes, which makes the development and characterization of robust processes tedious task. To predict and control robustness, a clear understanding of interactions between input and output variables is necessary. Robust bioprocesses can be realized, for example, by using advanced control strategies for the different unit operations. In this review, we discuss the different biological, technical, and mathematical tools for the analysis and control of bioprocess robustness.
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Affiliation(s)
- Lucas Becker
- Institute of Bioprocess Engineering and Pharmaceutical Technology, University of Applied Sciences Mittelhessen, Wiesenstrasse 14, 35390 Giessen, Germany
| | - Jonathan Sturm
- Bioprozesstechnik Group, Westfälische Hochschule, August-Schmidt-Ring 10, 45665 Recklinghausen, Germany; iAMB - Institute of Applied Microbiology, ABBt - Aachen Biology and Biotechnology, RWTH Aachen University, Worringerweg 1, 52074 Aachen, Germany
| | - Frank Eiden
- Bioprozesstechnik Group, Westfälische Hochschule, August-Schmidt-Ring 10, 45665 Recklinghausen, Germany
| | - Dirk Holtmann
- Institute of Bioprocess Engineering and Pharmaceutical Technology, University of Applied Sciences Mittelhessen, Wiesenstrasse 14, 35390 Giessen, Germany.
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16
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Bwatanglang IB, Mohammad F, Janet JN, Dahan WM, Al-Lohedan HA, Soleiman AA. Biosorption of Escherichia coli Using ZnO-Trimethyl Chitosan Nanocomposite Hydrogel Formed by the Green Synthesis Route. Gels 2023; 9:581. [PMID: 37504460 PMCID: PMC10378975 DOI: 10.3390/gels9070581] [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: 06/15/2023] [Revised: 07/06/2023] [Accepted: 07/12/2023] [Indexed: 07/29/2023] Open
Abstract
In this study, we tested the biosorption capacity of trimethyl chitosan (TMC)-ZnO nanocomposite (NC) for the adsorptive removal of Escherichia coli (E. coli) in aqueous suspension. For the formation of ZnO NPs, we followed the green synthesis route involving Terminalia mantaly (TM) aqueous leaf extract as a reducing agent, and the formed ZnO particles were surface-coated with TMC biopolymer. On testing of the physicochemical characteristics, the TM@ZnO/TMC (NC) hydrogel showed a random spherical morphology with an average size of 31.8 ± 2.6 nm and a crystal size of 28.0 ± 7.7 nm. The zeta potential of the composite was measured to be 23.5 mV with a BET surface area of 3.01 m2 g-1. The spectral profiles of TM@ZnO/TMC NC hydrogel on interaction with Escherichia coli (E. coli) revealed some conformational changes to the functional groups assigned to the stretching vibrations of N-H, C-O-C, C-O ring, and C=O bonds. The adsorption kinetics of TM@ZnO/TMC NC hydrogel revealed the pseudo-second-order as the best fit mechanism for the E. coli biosorption. The surface homogeneity and monolayer adsorption of the TM@ZnO/TMC NC hydrogel reflects majorly the entire adsorption mechanism, observed to display the highest correlation for Jovanovic, Redlich-Peterson, and Langmuir's isotherm models. Further, with the use of TM@ZnO/TMC NC hydrogel, we measured the highest adsorption capacity of E. coli to be 4.90 × 10 mg g-1, where an in-depth mechanistic pathway was proposed by making use of the FTIR analysis.
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Affiliation(s)
| | - Faruq Mohammad
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - John Nahadi Janet
- Department of Pure and Applied Chemistry, Adamawa State University, Mubi 650001, Nigeria
| | - Wasmia Mohammed Dahan
- Department of Pure and Applied Chemistry, Adamawa State University, Mubi 650001, Nigeria
| | - Hamad A Al-Lohedan
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed A Soleiman
- College of Sciences and Engineering, Southern University, Baton Rouge, LA 70813, USA
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17
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Sekar MP, Budharaju H, Sethuraman S, Sundaramurthi D. Carboxymethyl cellulose-agarose-gelatin: A thermoresponsive triad bioink composition to fabricate volumetric soft tissue constructs. SLAS Technol 2023; 28:183-198. [PMID: 37149220 DOI: 10.1016/j.slast.2023.04.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/18/2023] [Accepted: 04/27/2023] [Indexed: 05/08/2023]
Abstract
Polysaccharide based hydrogels have been predominantly utilized as ink materials for 3D bioprinting due to biocompatibility and cell responsive features. However, most hydrogels require extensive crosslinking due to poor mechanical properties leading to limited printability. To improve printability without using cytotoxic crosslinkers, thermoresponsive bioinks could be developed. Agarose is a thermoresponsive polysaccharide with upper critical solution temperature (UCST) for sol-gel transition at 35-37 °C. Therefore, we hypothesized that a triad of carboxymethyl cellulose(C)-agarose(A)-gelatin(G) could be a suitable thermoresponsive ink for printing since they undergo instantaneous gelation without any addition of crosslinkers after bioprinting. The blend of agarose-carboxymethyl cellulose was mixed with 1% w/v, 3% w/v and 5% w/v gelatin to optimize the triad ratio for hydrogel formation. It was observed that a blend (C2-A0.5-G1 and C2-A1-G1) containing 2% w/v carboxymethyl cellulose, 0.5% or 1% w/v agarose and 1% w/v gelatin formed better hydrogels with higher stability for up to 21 days in DPBS at 37 °C. Further, C2-A0.5-G1 and C2-A1-G1hydrogels showed higher storage modulus 762 ± 182 Pa & 2452 ± 430 Pa, higher porosity of 96.98 ± 2% & 98.2 ± 0.8% and swellability of 1518 ± 68% & 1587 ± 25% respectively. To evaluate the in vitro potential of these bioink formulations, indirect and direct cytotoxicity were determined using NCTC clone 929 (mouse fibroblast cells) and HADF (primary human adult dermal fibroblast) cells as per the ISO 10993-5 standards. Importantly, the printability of these bioinks was confirmed using extrusion bioprinting by successfully printing different complex 3D patterns.
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Affiliation(s)
- Muthu Parkkavi Sekar
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - Harshavardhan Budharaju
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - Swaminathan Sethuraman
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India
| | - Dhakshinamoorthy Sundaramurthi
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur, Tamil Nadu 613 401, India.
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18
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Hamouda NH, Saleh WD, Nasr NF, El Sabry MI. Benefits and risks of using bacterial- and plant-produced nano-silver for Japanese quail hatching-egg sanitation. Arch Microbiol 2023; 205:228. [PMID: 37160476 PMCID: PMC10169885 DOI: 10.1007/s00203-023-03547-3] [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: 03/02/2023] [Revised: 03/26/2023] [Accepted: 04/11/2023] [Indexed: 05/11/2023]
Abstract
This research compared how bacterial-, plant-produced silver nanoparticles (Ag-NPs) and TH4 affected the eggshells microbial load and quail chicks' liver structure, embryonic mortality, and features related to hatchability. Ag-NPs were sensitized by bacterial and plant methods, and then identified by UV-visible spectroscopy, TEM, and FTIR spectroscopy. B-Ag-NPs were found in spherical shapes in size ranging from 7.09 to 18.1 nm versus multi-shape with size range of 25.0-78.1 nm for P-Ag-NPs. A total number of 624 eggs (in three equal groups) of Japanese quail flock were sprayed with TH4 as control, B-Ag-NPs and P-Ag-NPs. Thereafter, three eggs were sampled randomly from each group for determining important microbial groups. The remaining eggs were incubated according to the recommended incubation conditions. On the day of hatching, the percentages of hatchability and embryonic mortality were measured. Besides, five chicks from each treatment were slaughtered and the livers were utilized for ICP and histological tests. The effects of all three treatments on the microbial count in eggshells were comparable, according to the results. In addition, there was no negative effect on either hatchability percentage or embryonic mortality rate. The liver structure from both B-Ag-NPs and P-Ag-NPs treatments exhibited severe and moderate degeneration of hepatocytes, which may indicate possible hazardous effects of using nanoparticles. Using TH4 did not cause liver structure abnormality. In conclusion, using Ag-NPs for sanitizing hatching eggs effectively reduces the eggshell microbial count without affecting the hatchability percentage. Nevertheless, histological changes are appropriate to be considered as a safety parameter in Ag-NPs applications.
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Affiliation(s)
- Nagwa H Hamouda
- Department of Microbiology, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt.
| | - W D Saleh
- Department of Microbiology, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
| | - N F Nasr
- Department of Microbiology, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
| | - M I El Sabry
- Department of Animal Production, Faculty of Agriculture, Cairo University, Giza, 12613, Egypt
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Purification and Structure Characterization of the Crude Polysaccharide from the Fruiting Bodies of Butyriboletus pseudospeciosus and Its Modulation Effects on Gut Microbiota. Molecules 2023; 28:molecules28062679. [PMID: 36985654 PMCID: PMC10057200 DOI: 10.3390/molecules28062679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/09/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
Polysaccharides from the species of Boletaceae (Boletales, Agaricomycetes, Basidiomycota) are economically significant to both functional foods and medicinal industries. The crude polysaccharide from Butyriboletus pseudospeciosus (BPP) was prepared, and its physicochemical properties were characterized through the use of consecutive experimental apparatus, and its impact on the gut microbiota of Kunming mice was evaluated. Analyses of the structure characteristics revealed that BPP was mainly composed of Man, Glc, and Gal, possessing the pyranose ring and β/α-glycosidic linkages. TG analysis exhibited that BPP had great heat stability. The SEM observation performed demonstrated that BPP appeared with a rough, dense, and porous shape. Through the BPP intervention, the serum and fecal biochemical index in mice can be improved obviously (p < 0.05). The abundance of beneficial microbiota in the BPP-treated group was significantly increased, while the abundance of harmful microbiota was significantly decreased (p < 0.05). Based on the Tax4Fun, we also revealed the relationship between the species of gut microbiota and showed that the high dose of BPP has significantly changed the functional diversities compared with those in other groups (p < 0.05). The results suggest that B. pseudospeciosus could serve as potential functional food or medicine.
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20
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Paesa M, Remirez de Ganuza C, Alejo T, Yus C, Irusta S, Arruebo M, Sebastian V, Mendoza G. Elucidating the mechanisms of action of antibiotic-like ionic gold and biogenic gold nanoparticles against bacteria. J Colloid Interface Sci 2023; 633:786-799. [PMID: 36493743 DOI: 10.1016/j.jcis.2022.11.138] [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: 08/22/2022] [Revised: 11/17/2022] [Accepted: 11/27/2022] [Indexed: 11/30/2022]
Abstract
The antimicrobial action of gold depends on different factors including its oxidation state in the intra- and extracellular medium, the redox potential, its ability to produce reactive oxygen species (ROS), the medium components, the properties of the targeted bacteria wall, its penetration in the bacterial cytosol, the cell membrane potential, and its interaction with intracellular components. We demonstrate that different gold species are able to induce bacterial wall damage as a result of their electrostatic interaction with the cell membrane, the promotion of ROS generation, and the consequent DNA damage. In-depth genomic and proteomic studies on Escherichia coli confirmed the superior toxicity of Au (III) vs Au (I) based on the different molecular mechanisms analyzed including oxidative stress, bacterial energetic metabolism, biosynthetic processes, and cell transport. At equivalent bactericidal doses of Au (III) and Au (I) eukaryotic cells were not as affected as bacteria did, maintaining unaffected cell viability, morphology, and focal adhesions; however, increased ROS generation and disruption in the mitochondrial membrane potential were also observed. Herein, we shed light on the antimicrobial mechanisms of ionic and biogenic gold nanoparticles against bacteria. Under selected conditions antibiotic-like ionic gold can exert a strong antimicrobial activity while being harmless to human cells.
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Affiliation(s)
- Monica Paesa
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Cristina Remirez de Ganuza
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain
| | - Teresa Alejo
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Aragon Health Research Institute (IIS Aragon), 50009-Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029-Madrid, Spain
| | - Cristina Yus
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain
| | - Silvia Irusta
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Aragon Health Research Institute (IIS Aragon), 50009-Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029-Madrid, Spain
| | - Manuel Arruebo
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Aragon Health Research Institute (IIS Aragon), 50009-Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029-Madrid, Spain.
| | - Víctor Sebastian
- Department of Chemical Engineering, University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain; Aragon Health Research Institute (IIS Aragon), 50009-Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029-Madrid, Spain.
| | - Gracia Mendoza
- Aragon Health Research Institute (IIS Aragon), 50009-Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029-Madrid, Spain
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Development of a Clioquinol Nanocarrier as a New, Promising Option for the Treatment of Dermatomycosis. Pharmaceutics 2023; 15:pharmaceutics15020531. [PMID: 36839854 PMCID: PMC9965560 DOI: 10.3390/pharmaceutics15020531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023] Open
Abstract
Dermatomycosis is a common fungal infection, and its treatment is limited by few antifungal agents. Clioquinol (CQ) is an antiparasitic agent that has been studied for new uses, such as antifungal and antiviral applications. CQ was incorporated into a lipid-based nanocarrier as a new, promising option for dermatomycosis. This study aimed to develop a CQ-loaded lipid-based nanocarrier for cutaneous application and to evaluate its antifungal activity. CQ-loaded nanoformulation (LBN-CQ) was developed using the ultrasonication method, and the particle size, polydispersity index (PDI), pH, zeta potential, and drug content were monitored for 45 days. To evaluate antifungal activity, broth microdilution and a time-kill assay were performed. LBN-CQ presented a particle size of 91 ± 3 nm and PDI of 0.102 ± 0.009. The zeta potential and pH values were -9.7 ± 2.0 mV and 6.0 ± 0.1, respectively. The drug content was 96.4 ± 2.3%, and the encapsulation efficiency was 98.4%. LBN-CQ was able to reduce the minimum inhibitory concentration (MIC) in a 2-fold or 4-fold manner in most of the tested strains. Additionally, LBN-CQ presented stable fungistatic action that was not concentration- or time-dependent. In conclusion, the developed CQ-loaded nanocarrier is a promising treatment for skin fungal infections and a promising candidate for future randomized clinical trials.
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Kavitha A, Doss A, Praveen Pole R, Pushpa Rani TK, Prasad R, Satheesh S. A mini review on plant-mediated zinc oxide nanoparticles and their antibacterial potency. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2023. [DOI: 10.1016/j.bcab.2023.102654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Shamkani F, Barzi SM, Badmasti F, Chiani M, Mirabzadeh E, Zafari M, Shafiei M. Enhanced anti-biofilm activity of the minocycline-and-gallium-nitrate using niosome wrapping against Acinetobacter baumannii in C57/BL6 mouse pneumonia model. Int Immunopharmacol 2023; 115:109551. [PMID: 36621329 DOI: 10.1016/j.intimp.2022.109551] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 11/24/2022] [Accepted: 12/02/2022] [Indexed: 01/09/2023]
Abstract
Acinetobacter baumannii is a worldwide health issue in terms of its high antibiotic resistance and ability to form biofilms. Nanoparticles (NPs) with high biocompatibility, high penetrating ability, and low medication dose can successfully treat the antibiotic-resistant infections. In this research, the anti-biofilm activity of niosomes containing minocycline and gallium nitrate (GaN) against A. baumannii biofilm was determined. In order to improve their anti-biofilm properties, minocycline and GaN were encapsulated in niosomes as biocompatible drug carriers. The niosomes' size, zeta potential, shape, stability, drug entrapment efficacy, drug release pattern and antibacterial activity were assessed. Several clinical samples were isolated from the lungs of patients hospitalized at Loghman hospital, Tehran, Iran. The biofilm formation of most lethal clinical isolates of A. baumannii was analyzed. The pneumonia model was generated by intranasally administering A. baumannii suspension to anesthetized mice whose immune systems was compromised twice by cyclophosphamide. Lung infection of the mouse with A. baumannii was confirmed using PCR. After treatment, the lungs were excised under sterile conditions and stained with hematoxylin and eosin (H&E) to determine histological symptoms, inflammation and intercellular secretions. The niosomes contained minocycline and GaN had an average size of 230 nm and a zeta potential of -40 mV, respectively. The percentage of drug entrapment and delayed drug release was both high in niosomal formulations. Niosomes containing minocycline and GaN dispersed 1, 3 and 5 day old biofilms. The mice given the combination of two compounds required less time to be treated than the animals given the single medication (minocycline). The minocycline& GaN-loaded niosomes could be considered as promising candidates to treat the infections caused by A. baumannii biofilm.
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Affiliation(s)
- Farnaz Shamkani
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | | | - Farzad Badmasti
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran
| | - Mohsen Chiani
- Department of Nanobiotechnology, Pasteur Institute of Iran, Tehran, Iran
| | - Esmat Mirabzadeh
- Department of Biotechnology, Pasteur Institute of Iran, Tehran, Iran
| | - Mahdi Zafari
- Department of Biology, The University of Akron, Akron, OH 44325, United States
| | - Morvarid Shafiei
- Department of Bacteriology, Pasteur Institute of Iran, Tehran, Iran.
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Abd El-Aziz SM, Farahat EA. The Activity of Vossia cuspidata Polysaccharides-Derived Monometallic CuO, Ag, Au, and Trimetallic CuO-Ag-Au Nanoparticles Against Cancer, Inflammation, and Wound Healing. J Inorg Organomet Polym Mater 2023. [DOI: 10.1007/s10904-023-02542-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
AbstractThe biosynthesis of metal nanoparticles using plant extracts is an eco-friendly and inexpensive solution that has strong potential and applications in science and industry. This study aims to synthesize Cu, Ag, and Au monometallic and trimetallic nanoparticles (NPs) using the extracted polysaccharides (PS) of Vossia cuspidata (Roxb.) Griff. leaves. Besides, the anti-cancer, anti-inflammatory, and wound healing potentials of the synthesized NPs were tested. The synthesized NPs were characterized using standard technological methods. We succeeded in green synthesizing CuO, Ag, Au, monometallic, and CuO-Ag-Au trimetallic NPs. The synthesized NPs had weak cytotoxicity at low concentrations (6.5 µg/ml), but the viability of cancer cells was reduced by increasing the concentration, suggesting that the synthesized NPs have potent anti-cancer properties against the cells. The synthesized NPs had 19.44–45.9 μg/ml cytotoxic activity (IC50) against the MCF-7 cell line, 16.50–51.92 μg/ml against A549, and 115.90–165.9 μg/ml for normal lung cells (WI-38). TMNPs were the most effective cytotoxic agents against all the tested cell lines, followed by AuNPs on MCF-7 and CuONPs on A549. The cotton fabric-treated TMNPs and CuONPs exhibited anti-inflammatory properties greater than fabric-treated AgNPs and AuNPs and showed the highest odema inhibition (84.61% and 79.28%, respectively). In the wound healing assay, CuONPs and TMNPs caused the highest percentages of inhibition (87.82% and 61.98%, respectively) for the wound compared to AgNPs and AuNPs. TMNPs and CuONPs were more efficient in restoring the tissue integrity of wounds than AgNPs and AuNPs. Accordingly, we recommend using TMNPs and CuONPs in the wound healing dressings.
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Dhara M, Al Hoque A, Sen R, Dutta D, Mukherjee B, Paul B, Laha S. Phosphorothioated amino-AS1411 aptamer functionalized stealth nanoliposome accelerates bio-therapeutic threshold of apigenin in neoplastic rat liver: a mechanistic approach. J Nanobiotechnology 2023; 21:28. [PMID: 36694259 PMCID: PMC9875447 DOI: 10.1186/s12951-022-01764-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 12/30/2022] [Indexed: 01/26/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is a leading cause of death globally. Even though the progressive invention of some very potent therapeutics has been seen, the success is limited due to the chemotherapeutic resistance and recurrence in HCC. Advanced targeted treatment options like immunotherapy, molecular therapy or surface-engineered nanotherapeutics could offer the benefits here owing to drug resistance over tumor heterogenicity. We have developed tumor-sensing phosphorothioate and amino-modified aptamer (AS1411)-conjugated stealth nanoliposomes, encapsulating with apigenin for precise and significant biodistribution of apigenin into the target tumor to exploit maximum bio-therapeutic assistances. The stable aptamer functionalized PEGylated nanoliposomes (Apt-NLCs) had an average vesicle size of 100-150 nm, a smooth surface, and an intact lamellarity, as ensured by DLS, FESEM, AFM, and Cryo-TEM. This study has specified in vitro process of optimum drug (apigenin) extrusion into the cancer cells by nucleolin receptor-mediated cellular internalization when delivered through modified AS1411 functionalized PEGylated nanoliposomes and ensured irreversible DNA damage in HCC. Significant improvement in cancer cell apoptosis in animal models, due to reduced clearance and higher intratumor drug accumulation along with almost nominal toxic effect in liver, strongly supports the therapeutic potential of aptamer-conjugated PEGylated nanoliposomes compared to the nonconjugated formulations in HCC. The study has established a robust superiority of modified AS1411 functionalized PEGylated nanoliposomes as an alternative drug delivery approach with momentous reduction of HCC tumor incidences.
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Affiliation(s)
- Moumita Dhara
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Ashique Al Hoque
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India.,Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, USA
| | - Ramkrishna Sen
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Debasmita Dutta
- Dana Farber Cancer Institute, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA
| | - Biswajit Mukherjee
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India.
| | - Brahamacharry Paul
- Department of Pharmaceutical Technology, Jadavpur University, Kolkata, 700032, India
| | - Soumik Laha
- Central Instrument Facility, CSIR-Indian Institute of Chemical Biology, Kolkata, 700032, India
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Harshitha CG, Sharma N, Singh R, Sharma R, Gandhi K, Mann B. Interaction study of aflatoxin M1 with milk proteins using ATR-FTIR. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2023; 60:64-72. [PMID: 36618042 PMCID: PMC9813309 DOI: 10.1007/s13197-022-05587-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/21/2022] [Accepted: 08/28/2022] [Indexed: 01/11/2023]
Abstract
Aflatoxin M1 (AFM1) is a metabolite of carcinogenic aflatoxin B1 (AFB1) and appears in milk of dairy animals on ingestion of feed contaminated with AFB1. It has been reported to have affinity towards milk proteins, the exact mechanism of which is still unknown. In the present study, ATR-FTIR coupled with chemometrics is utilized to understand AFM1 interaction with milk proteins. The second order derivative spectra of the spectral window 1700-1600 cm-1 confirms the affinity of AFM1 towards milk proteins. The results of principal component analysis suggested that spectral window of 1700-1600 cm-1 is informative and provides an indication of the conformational changes brought by AFM1 in the secondary structure of milk proteins. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-022-05587-x.
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Affiliation(s)
| | | | - Richa Singh
- Dairy Chemistry Division, NDRI, Karnal, India
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Antibacterial Effects of ZnO Nanodisks: Shape Effect of the Nanostructure on the Lethality in Escherichia coli. Appl Biochem Biotechnol 2022; 195:3067-3095. [PMID: 36520354 DOI: 10.1007/s12010-022-04265-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2022] [Indexed: 12/23/2022]
Abstract
The role of the shape of the nanostructure on the antibacterial effects of ZnO nanodisks has been investigated by detailed mass spectrometry-based proteomics along with other spectroscopic and microscopic studies on E. coli. The primary interaction study of the E. coli cells in the presence of ZnO nanodisks showed rigorous cell surface damage disrupting the cell wall/membrane components detected by microscopic and ATR-FTIR studies. Protein profiling of whole-cell extracts in the presence and absence of ZnO nanodisks identified several proteins that are upregulated and downregulated under the stress of the nanodisks. This suggests that the bacterial response to the primary stress leads to a secondary impact of ZnO nanodisk toxicity via regulation of the expression of specific proteins. Results showed that the ZnO nanodisks lead to the over-expression of peptidyl-dipeptidase Dcp, Transketolase-1, etc., which are important to maintaining the osmotic balance in the cell. The abrupt change in osmotic pressure leads to mechanical injury to the membrane, and nutritional starvation conditions, which is revealed from the expression of the key proteins involved in membrane-protein assembly, maintaining membrane integrity, cell division processes, etc. Thus, indicating a deleterious effect of ZnO nanodisk on the protective layer of E. coli. ZnO nanodisks seem to primarily affect the protective membrane layer, inducing cell death via the development of osmotic shock conditions, as one of the possible reasons for cell death. These results unravel a unique behavior of the disk-shaped ZnO nanostructure in executing lethality in E. coli, which has not been reported for other known shapes or morphologies of ZnO nanoforms.
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Soares JM, Guimarães FEG, Yakovlev VV, Bagnato VS, Blanco KC. Physicochemical mechanisms of bacterial response in the photodynamic potentiation of antibiotic effects. Sci Rep 2022; 12:21146. [PMID: 36476814 PMCID: PMC9729225 DOI: 10.1038/s41598-022-25546-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 11/30/2022] [Indexed: 12/13/2022] Open
Abstract
Antibiotic failures in treatments of bacterial infections from resistant strains have been a global health concern, mainly due to the proportions they can reach in the coming years. Making microorganisms susceptible to existing antibiotics is an alternative to solve this problem. This study applies a physicochemical method to the standard treatment for modulating the synergistic response towards circumventing the mechanisms of bacterial resistance. Photodynamic inactivation protocols (curcumina 10 µM, 10 J/cm2) and their cellular behavior in the presence of amoxicillin, erythromycin, and gentamicin antibiotics were analyzed from the dynamics of bacterial interaction of a molecule that produces only toxic effects after the absorption of a specific wavelength of light. In addition to bacterial viability, the interaction of curcumin, antibiotics and bacteria were imaged and chemically analyzed using confocal fluorescence microscopy and Fourier-transform infrared spectroscopy (FTIR). The interaction between therapies depended on the sequential order of application, metabolic activity, and binding of bacterial cell surface biomolecules. The results demonstrated a potentiating effect of the antibiotic with up to to 32-fold reduction in minimum inhibitory concentrations and mean reductions of 7 log CFU/ml by physicochemical action at bacterial level after the photodynamic treatment. The changes observed as a result of bacteria-antibiotic interactions, such as membrane permeabilization and increase in susceptibility, may be a possibility for solving the problem of microbial multidrug resistance.
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Affiliation(s)
- Jennifer M. Soares
- grid.11899.380000 0004 1937 0722São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador São-Carlense, 400, 13566-590 São Carlos, São Paulo, Brazil
| | - Francisco E. G. Guimarães
- grid.11899.380000 0004 1937 0722São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador São-Carlense, 400, 13566-590 São Carlos, São Paulo, Brazil
| | - Vladislav V. Yakovlev
- grid.264756.40000 0004 4687 2082Biomedical Engineering, Texas A&M University, College Station, TX USA
| | - Vanderlei S. Bagnato
- grid.11899.380000 0004 1937 0722São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador São-Carlense, 400, 13566-590 São Carlos, São Paulo, Brazil ,grid.264756.40000 0004 4687 2082Biomedical Engineering, Texas A&M University, College Station, TX USA
| | - Kate C. Blanco
- grid.11899.380000 0004 1937 0722São Carlos Institute of Physics, University of São Paulo, Av. Trabalhador São-Carlense, 400, 13566-590 São Carlos, São Paulo, Brazil ,grid.264756.40000 0004 4687 2082Biomedical Engineering, Texas A&M University, College Station, TX USA
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Atomic force and infrared spectroscopic studies on the role of surface charge for the anti-biofouling properties of polydopamine films. Anal Bioanal Chem 2022; 415:2059-2070. [PMID: 36434170 PMCID: PMC10079710 DOI: 10.1007/s00216-022-04431-7] [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: 09/08/2022] [Revised: 10/27/2022] [Accepted: 11/08/2022] [Indexed: 11/26/2022]
Abstract
Antibacterial polymer materials have gained interest due to their capability to inhibit or eradicate biofilms with greater efficiency in comparison with their monomeric counterparts. Among the antimicrobial and anti-biofouling polymers, catecholamine-based polymers - and in particular polydopamine - have been studied due to their favorable adhesion properties, which can be tuned by controlling the pH value. In this study, we used atomic force microscopy (AFM)-based spectroscopy to investigate the relation between the adhesion properties and surface charge density and the pH of electrochemically deposited polydopamine films presenting a dissociation constant of polydopamine of 6.3 ± 0.2 and a point of zero charge of 5.37 ± 0.06. Furthermore, using AFM and attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR), the influence of the surface charge density of polydopamine on bacterial adhesion and biofilm formation was investigated. It was shown that the adhesion of Escherichia coli at positively charged polydopamine is three times higher compared to a negatively charged polymer, and that the formation of biofilms is favored at positively charged polymers.
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Zhong W, Wang X, Yang L, Wang Y, Xiao Q, Yu S, Cannon RD, Bai Y, Zhang C, Chen D, Ji P, Gao X, Song J. Nanocarrier-Assisted Delivery of Metformin Boosts Remodeling of Diabetic Periodontal Tissue via Cellular Exocytosis-Mediated Regulation of Endoplasmic Reticulum Homeostasis. ACS NANO 2022; 16:19096-19113. [PMID: 36259964 DOI: 10.1021/acsnano.2c08146] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Endoplasmic reticulum (ER) dysfunction is a potential contributor to the impaired repair capacity of periodontal tissue in diabetes mellitus (DM) patients. Restoring ER homeostasis is thus critical for successful regenerative therapy of diabetic periodontal tissue. Recent studies have shown that metformin can modulate DM-induced ER dysfunction, yet its mechanism remains unclear. Herein, we show that high glucose elevates the intracellular miR-129-3p level due to exocytosis-mediated release failure and subsequently perturbs ER calcium homeostasis via downregulating transmembrane and coiled-coil domain 1 (TMCO1), an ER Ca2+ leak channel, in periodontal ligament stem cells (PDLSCs). This results in the degradation of RUNX2 via the ubiquitination-dependent pathway, in turn leading to impaired PDLSCs osteogenesis. Interestingly, metformin could upregulate P2X7R-mediated exosome release and decrease intracellular miR-129-3p accumulation, which restores ER homeostasis and thereby rescues the impaired PDLSCs. To further demonstrate the in vivo effect of metformin, a nanocarrier for sustained local delivery of metformin (Met@HALL) in periodontal tissue is developed. Our results demonstrate that compared to controls, Met@HALL with enhanced cytocompatibility and pro-osteogenic activity could boost the remodeling of diabetic periodontal tissue in rats. Collectively, our findings unravel a mechanism of metformin in restoring cellular ER homeostasis, enabling the development of a nanocarrier-mediated ER targeting strategy for remodeling diabetic periodontal tissue.
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Affiliation(s)
- Wenjie Zhong
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Xinyan Wang
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Lanxin Yang
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Yue Wang
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Qingyue Xiao
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Simin Yu
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Richard D Cannon
- Department of Oral Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin 9016, New Zealand
| | - Yan Bai
- Chongqing Research Center for Pharmaceutical Engineering, Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Chuangwei Zhang
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Duanjing Chen
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Ping Ji
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Xiang Gao
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
| | - Jinlin Song
- College of Stomatology, Chongqing Medical University, Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401147, China
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Yusof HM, Rahman NA, Mohamad R, Zaidan UH, Samsudin AA. Optimization of biosynthesis zinc oxide nanoparticles: Desirability-function based response surface methodology, physicochemical characteristics, and its antioxidant properties. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Panacea for the nanoplastic surge in Africa: A state-of-the-art review. Heliyon 2022; 8:e11562. [DOI: 10.1016/j.heliyon.2022.e11562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 10/09/2022] [Accepted: 11/07/2022] [Indexed: 11/16/2022] Open
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Wang R, Moon SK, Kim WJ, Dhandapani S, Kim H, Kim YJ. Biologically Synthesized Rosa rugosa-Based Gold Nanoparticles Suppress Skin Inflammatory Responses via MAPK and NF-κB Signaling Pathway in TNF-α/IFN-γ-Induced HaCaT Keratinocytes. ACS OMEGA 2022; 7:35951-35960. [PMID: 36249362 PMCID: PMC9558598 DOI: 10.1021/acsomega.2c04832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
Nanotechnology-applied materials and related therapeutics have gained attention for treating inflammatory skin diseases. The beach rose (Rosa rugosa), belonging to the family Rosaceae, is a perennial, deciduous woody shrub endemic to northeastern Asia. In this study, R. rugosa-based gold nanoparticles (RR-AuNPs) were biologically synthesized under optimal conditions to explore their potential as anti-inflammatory agents for treating skin inflammation. The synthesized RR-AuNPs were analyzed using field emission-transmission electron microscopy, energy-dispersive X-ray spectrometry, selected-area electron diffraction, and X-ray diffraction. The uniformly well-structured AuNPs showed near-spherical and polygonal shapes. Cell viability evaluation and optical observation results showed that the RR-AuNPs were absorbed by human keratinocytes without causing cytotoxic effects. The effects of RR-AuNPs on the skin inflammatory response were investigated in human keratinocytes treated with tumor necrosis factor-α/interferon-γ (T + I). The results showed that T + I-stimulated increases in inflammatory mediators, including chemokines, interleukins, and reactive oxygen species, were significantly suppressed by RR-AuNP treatment in a concentration-dependent manner. The western blotting results indicated that the RR-AuNP-mediated anti-inflammatory effects were highly associated with the suppression of inflammatory signaling, mitogen-activated protein kinase, and nuclear factor-κB. These results demonstrate that plant extract-based AuNPs are novel anti-inflammatory candidates for topical application to treat skin inflammation.
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Affiliation(s)
- Rongbo Wang
- Graduate
School of Biotechnology, and College of Life Science, Kyung Hee University, Deogyeong-daero 1732, Giheung-gu, Yongin 17104, Republic of Korea
| | - Sung-Kwon Moon
- Department
of Food and Nutrition, Chung Ang University, Seodong-daero 4726, Daedeok-myeon, Anseong 17546, Republic of Korea
| | - Woo-Jung Kim
- Biocenter, Gyeonggido
Business and Science Accelerator, Gwanggyo-ro 147, Yeongtong-gu, Suwon 16229, Republic
of Korea
| | - Sanjeevram Dhandapani
- Graduate
School of Biotechnology, and College of Life Science, Kyung Hee University, Deogyeong-daero 1732, Giheung-gu, Yongin 17104, Republic of Korea
| | - Hoon Kim
- Department
of Food and Nutrition, Chung Ang University, Seodong-daero 4726, Daedeok-myeon, Anseong 17546, Republic of Korea
| | - Yeon-Ju Kim
- Graduate
School of Biotechnology, and College of Life Science, Kyung Hee University, Deogyeong-daero 1732, Giheung-gu, Yongin 17104, Republic of Korea
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Rodzik A, Railean V, Pomastowski P, Žuvela P, Wong MW, Sprynskyy M, Buszewski B. Study on silver ions binding to β-lactoglobulin. Biophys Chem 2022; 291:106897. [DOI: 10.1016/j.bpc.2022.106897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 09/13/2022] [Accepted: 09/22/2022] [Indexed: 11/02/2022]
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35
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Dou J, Mi Y, Daneshmand S, Heidari Majd M. The effect of magnetic nanoparticles containing hyaluronic acid and methotrexate on the expression of genes involved in apoptosis and metastasis in A549 lung cancer cell lines. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Recent Trends in the Preparation of Nano-Starch Particles. Molecules 2022; 27:molecules27175497. [PMID: 36080267 PMCID: PMC9457580 DOI: 10.3390/molecules27175497] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/18/2022] [Accepted: 08/25/2022] [Indexed: 11/17/2022] Open
Abstract
Starch is affected by several limitations, e.g., retro-gradation, high viscosity even at low concentrations, handling issues, poor freeze–thaw stability, low process tolerance, and gel opacity. In this context, physical, chemical, and enzymatic methods have been investigated for addressing such limitations or adding new attributes. Thus, the creation of biomaterial-based nanoparticles has sparked curiosity. Because of that, single nucleotide polymorphisms are gaining a lot of interest in food packaging technology. This is due to their ability to increase the mechanical and water vapor resistance of the matrix, as well as hide its re-crystallization during storage in high-humidity atmospheres and enhance the mechanical properties of films when binding in paper machines and paper coating. In medicine, single nucleotide polymorphisms (SNPs) are suitable as carriers in the field of drug delivery for immobilized bioactive or therapeutic agents, as well as wastewater treatments as an alternative to expensive activated carbons. Starch nanoparticle preparations can be performed by hydrolysis via acid hydrolysis of the amorphous part of a starch molecule, the use of enzymes such as pullulanase or isoamylase, or a combination of two regeneration and mechanical treatments with the employment of extrusion, irradiation, ultrasound, or precipitation. The possibility of obtaining cheap and easy-to-use methods for starch and starch derivative nanoparticles is of fundamental importance. Nano-precipitation and ultra-sonication are rather simple and reliable methods for nanoparticle production. The process involves the addition of a diluted starch solution into a non-solvent, and ultra-sonication aims to reduce the size by breaking the covalent bonds in polymeric material due to intense shear forces or mechanical effects associated with the collapsing of micro-bubbles by sound waves. The current study focuses on starch nanoparticle manufacturing, characterization, and emerging applications.
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Advanced green approaches for metal and metal oxide nanoparticles synthesis and their environmental applications. TALANTA OPEN 2022. [DOI: 10.1016/j.talo.2021.100080] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Rathinavelu S, Divyapriya G, Joseph A, Nambi IM, Muthukrishnan AB, Jayaraman G. Inactivation behavior and intracellular changes in Escherichia coli during electro-oxidation process using Ti/Sb-SnO 2/PbO 2 anode: Elucidation of the disinfection mechanism. ENVIRONMENTAL RESEARCH 2022; 210:112749. [PMID: 35123966 DOI: 10.1016/j.envres.2022.112749] [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] [Received: 08/21/2021] [Revised: 12/15/2021] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
This study investigates the behavior and intracellular changes in Escherichia coli (model organism) during electro-oxidation with Ti/Sb-SnO2/PbO2 anode in a chlorine free electrochemical system. Preliminary studies were conducted to understand the effect of initial E. coli concentration and applied current density on disinfection. At an applied current density 30 mA cm-2, 7 log reduction of E. coli was achieved in 75 min. The role of reactive oxygen species' (ROS) in E.coli disinfection was evaluated, which confirmed hydroxyl (•OH) radical as the predominant ROS in electro-oxidation. Observations were carried out at cell and molecular level to understand E.coli inactivation mechanism. Scanning electron microscopy images confirmed oxidative damage of the cell wall and irreversible cell death. Intracellular and extracellular protein quantification and genetic material release further confirmed cell component leakage due to cell wall rupture and degradation due to •OH radical interaction. Change in cell membrane potential suggests the colloidal nature of E. coli cells under applied current density. Plasmid deoxyribonucleic acid degradation study confirmed fragmentation and degradation of released genetic material. Overall, effective disinfection could be achieved by electro-oxidation, which ensures effective inactivation and prevents regrowth of E. coli. Disinfection of real wastewater was achieved in 12 min at an applied current density 30 mA cm-2. Real wastewater study further confirmed that effective disinfection is possible with a low cost electrode material such as Ti/Sb-SnO2/PbO2. Energy consumed during disinfection was determined to be 4.978 kWh m-3 for real wastewater disinfection at applied current density 30 mA cm-2. Cost of operation was estimated and stability of the electrode was studied to evaluate the feasibility of large scale operation. Relatively low energy and less disinfection time makes this technology suitable for field scale applications.
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Affiliation(s)
- Sasikaladevi Rathinavelu
- Environmental and Water Resources Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600 036, India; Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600 036, India
| | - Govindaraj Divyapriya
- Environmental and Water Resources Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600 036, India
| | - Angel Joseph
- Environmental and Water Resources Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600 036, India
| | - Indumathi M Nambi
- Environmental and Water Resources Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600 036, India.
| | - Anantha Barathi Muthukrishnan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600 036, India
| | - Guhan Jayaraman
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600 036, India
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Saha J, Dey S, Pal A. Whole genome sequencing and comparative genomic analyses of Pseudomonas aeruginosa strain isolated from arable soil reveal novel insights into heavy metal resistance and codon biology. Curr Genet 2022; 68:481-503. [PMID: 35763098 DOI: 10.1007/s00294-022-01245-z] [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: 03/28/2022] [Revised: 05/14/2022] [Accepted: 06/06/2022] [Indexed: 11/03/2022]
Abstract
Elevated concentration of non-essential persistent heavy metals and metalloids in the soil is detrimental to essential soil microbes and plants, resulting in diminished diversity and biomass. Thus, isolation, screening, and whole genomic analysis of potent strains of bacteria from arable lands with inherent capabilities of heavy metal resistance and plant growth promotion hold the key for bio remedial applications. This study is an attempt to do the same. In this study, a potent strain of Pseudomonas aeruginosa was isolated from paddy fields, followed by metabolic profiling using FTIR, metal uptake analysis employing ICP-MS, whole genome sequencing and comparative codon usage analysis. ICP-MS study provided insights into a high degree of Cd uptake during the exponential phase of growth under cumulative metal stress to Cd, Zn and Co, which was further corroborated by the detection of cadA gene along with czcCBA operon in the genome upon performing whole-genome sequencing. This potent strain of Pseudomonas aeruginosa also harboured genes, such as copA, chrA, znuA, mgtE, corA, and others conferring resistance against different heavy metals, such as Cd, Zn, Co, Cu, Cr, etc. A comparative codon usage bias analysis at the genomic and genic level, whereby several heavy metal resistant genes were considered in the backdrop of two housekeeping genes among 40 Pseudomonas spp. indicated the presence of a relatively strong codon usage bias in the studied strain. With this work, an effort was made to explore heavy metal-resistant bacteria (isolated from arable soil) and whole genome sequence analysis to get insight into metal resistance for future bio remedial applications.
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Affiliation(s)
- Jayanti Saha
- Microbiology and Computational Biology Laboratory, Department of Botany, Raiganj University, Raiganj, West Bengal, 733134, India
| | - Sourav Dey
- Microbiology and Computational Biology Laboratory, Department of Botany, Raiganj University, Raiganj, West Bengal, 733134, India
| | - Ayon Pal
- Microbiology and Computational Biology Laboratory, Department of Botany, Raiganj University, Raiganj, West Bengal, 733134, India.
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Temperature- and Nutrients-Induced Phenotypic Changes of Antarctic Green Snow Bacteria Probed by High-Throughput FTIR Spectroscopy. BIOLOGY 2022; 11:biology11060890. [PMID: 35741411 PMCID: PMC9220083 DOI: 10.3390/biology11060890] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/21/2022] [Accepted: 06/08/2022] [Indexed: 11/29/2022]
Abstract
Simple Summary Green snow microorganisms play an important role in biogeochemical cycle and carbon sink processes and they can be a source of biotechnologically interesting cell factories. A wide temperature tolerance is a unique property of bacteria isolated from cold environments, which has received great attention in the last years. The present paper examines the growth and chemical profile flexibility for green snow bacteria exposed to different temperature and nutrient fluctuations. By applying high-throughput chemical phenotyping with FTIR spectroscopy we discovered chemical changes possessed by green snow bacteria when grown at high/low temperature and rich/minimal media. Abstract Temperature fluctuations and nutrient composition are the main parameters influencing green snow microbiome. In this study we investigated the influence of temperature and nutrient conditions on the growth and cellular chemical profile of bacteria isolated from green snow. Chemical profiling of the green snow bacteria was done by high-throughput FTIR spectroscopy combined with multivariate data analysis. We showed that temperature and nutrients fluctuations strongly affect growth ability and chemical profile of the green snow bacteria. The size of colonies for green snow bacteria grown at higher (25 °C) and lower (4 °C and 10 °C) than optimal temperature (18 °C) was smaller. All isolates grew on rich medium, and only 19 isolates were able to grow on synthetic minimal media. Lipid and mixed spectral regions showed to be phylogeny related. FTIR fingerprinting indicates that lipids are often affected by the temperature fluctuations. Growth on different media resulted in the change of the whole chemical profile, where lipids showed to be more affected than proteins and polysaccharides. Correlation analysis showed that nutrient composition is clearly strongly influencing chemical changes in the cells, followed by temperature.
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Synthesis, characterization, and evaluation of chloroaluminium phthalocyanine incorporated in poly(ε-caprolactone) nanoparticles for photodynamic therapy. Photodiagnosis Photodyn Ther 2022; 38:102850. [PMID: 35395414 DOI: 10.1016/j.pdpdt.2022.102850] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/21/2022] [Accepted: 04/03/2022] [Indexed: 01/08/2023]
Abstract
BACKGROUND The use of nanotechnology has been widely used in biomedical science, which consists of orthopedic implants, tissue engineering, cancer therapy and drug elution from nanoparticle systems, such as poly-caprolactone (PCL) nanoparticles, which stand out mainly for their biocompatibility, being considered as effective carriers for photosensitizing drugs (PS) in photodynamic therapy (PDT) protocols. METHODS This manuscript describes the synthesis and characterization of PCL nanoparticles for controlled release of the drug chloro-aluminum phthalocyanine (ClAlPc) as a photosensitizer for application in PDT. The PCL-ClAlPc nanoparticles were developed by the nanoprecipitation process. The structure and morphology of the nanoparticles were studied with scanning electron microscopy (SEM) and with Fourier transform infrared (FTIR). The size of nanomaterials was studied using the Dynamic Light Scattering (DLS) method. Photophysical and photochemical characterizations were performed. Subsequently, photobiological studies were also used to characterize the system. RESULTS The nanoparticles had an average diameter of 384.7 ± 138.6 nm and a polydispersity index of 0.153. SEM analysis revealed that the system formed a spherical shape typical of these delivery systems. Charging efficiency was 82.1% ± 1.2%. The phthalocyanine-loaded PCL nanoparticles maintained their photophysical behavior after encapsulation. Cell viability was determined after the dark toxicity test, and it was possible to observe that there was no evidence of toxicity in the dark, for all concentrations tested. The assay also revealed that adenocarcinoma cells treated with free ClAlPc and in the nanoformulation showed 100% cell death when subjected to PDT protocols. The intracellular location of the photosensitizer indicated a high potential for accumulation in the cytoplasm and nucleus. CONCLUSIONS From the photophysical, photochemical and photobiological analyzes obtained, it was possible to observe that the development of PCL nanoparticles encapsulated with ClAlPc, by the nanoprecipitation method was adequate and that the in vivo release study is efficient to reduce the release rate and attenuate the burst of PS loaded on PCL nanoparticles. The results reinforce that the use of this system as drug delivery systems is useful in PDT protocols.
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Thomas B, Vinka C, Pawan L, David S. Sustainable groundwater treatment technologies for underserved rural communities in emerging economies. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 813:152633. [PMID: 34963585 DOI: 10.1016/j.scitotenv.2021.152633] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/14/2021] [Accepted: 12/19/2021] [Indexed: 06/14/2023]
Abstract
Worldwide, about one out of two people depend on groundwater resources to satisfy their drinking water needs. While groundwater typically is of higher quality than surface water, pollution and geologic conditions may require treating groundwater to meet safe water quality criteria. Herein, a critical overview is presented of water treatment technologies for rural and underserved communities in emerging economies that depend on groundwater. Given that small to medium sized rural communities in emerging economies often lack the financial resources to support technologically complex and expensive centralized public water treatment systems, the focus is on proven technologies that are sustainable and acceptable by the rural population. After an overview of the underlying treatment mechanisms and the principal groundwater contaminants targeted by the traditional, advanced, and experimental water treatment technologies, we identify the groundwater quality parameters that may impact or interfere with the technology performance. We also introduce enabling environmental factors that might govern the implementation of water treatment technologies in the target communities and a brief discussion of safe storage of water after treatment to underline the importance of protecting the water from re-contamination. Our overview is further supported by tabulated summaries of the principal (dis)advantages of each technology covered herein, including cost considerations and social acceptance. Overall, our review suggests that underserved rural communities have sustainable and affordable options for cases where the quality of local groundwater resources requires treatment.
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Affiliation(s)
- Boving Thomas
- Department of Geosciences, University of Rhode Island, Kingston, RI 02881, USA; Department of Civil and Environmental Engineering, University of Rhode Island, Kingston, RI 02881, USA.
| | - Craver Vinka
- Department of Civil and Environmental Engineering, University of Rhode Island, Kingston, RI 02881, USA
| | - Labhasetwar Pawan
- Water Technology and Management Division, CSIR-NEERI, Nehru Marg, Nagpur 440020, India
| | - Sabatini David
- School of Civil Engineering and Environmental Science and WaTER Center, University of Oklahoma, Norman, OK 73019, USA
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Khairunnisa-Atiqah MK, Salleh KM, Ainul Hafiza AH, Nyak Mazlan NS, Mostapha M, Zakaria S. Impact of Drying Regimes and Different Coating Layers on Carboxymethyl Cellulose Cross-Linked with Citric Acid on Cotton Thread Fibers for Wound Dressing Modification. Polymers (Basel) 2022; 14:polym14061217. [PMID: 35335548 PMCID: PMC8949679 DOI: 10.3390/polym14061217] [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: 12/20/2021] [Revised: 03/11/2022] [Accepted: 03/14/2022] [Indexed: 02/04/2023] Open
Abstract
The oldest preservation techniques used are drying techniques, which are employed to remove moisture and prevent microorganisms’ growths, prolonging a material’s shelf life. This study evaluates the effects of drying methods on carboxymethyl cellulose (CMC) + citric acid (CA) coating layers on cotton threads. For this reason, cotton threads were washed and then coated with different layers of CMC cross-linked with CA, followed by drying using an oven (OD), infrared (IR), and a combination of oven + IR (OIR) drying methods at 65 °C. Our investigations revealed that CMC + CA yields a pliable biopolymer. The differences in drying regimes and coating layers of CMC + CA have a significant effect on the coated cotton thread strength and absorption capability. The study concluded that the IR drying regime is more effective to dry a single-layered cotton thread with a single layer of CMC + CA coating to enhance desirable properties for wound dressing modification.
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Affiliation(s)
- Mohamad Khalid Khairunnisa-Atiqah
- Bioresources and Biorefinery Laboratory, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia; (M.K.K.-A.); (A.H.A.H.); (N.S.N.M.)
| | - Kushairi Mohd Salleh
- Bioresources and Biorefinery Laboratory, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia; (M.K.K.-A.); (A.H.A.H.); (N.S.N.M.)
- Correspondence: authors: (K.M.S.); (S.Z.)
| | - A. H. Ainul Hafiza
- Bioresources and Biorefinery Laboratory, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia; (M.K.K.-A.); (A.H.A.H.); (N.S.N.M.)
- Centre of Foundation Studies, Universiti Teknologi MARA, Cawangan Selangor, Kampus Dengkil, Dengkil 43800, Selangor, Malaysia
| | - Nyak Syazwani Nyak Mazlan
- Bioresources and Biorefinery Laboratory, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia; (M.K.K.-A.); (A.H.A.H.); (N.S.N.M.)
| | - Marhaini Mostapha
- Centre for Biofuel and Biochemical Research, Institute of Self-Sustainable Building, Universiti Teknologi Petronas, Seri Iskandar 32610, Perak, Malaysia;
| | - Sarani Zakaria
- Bioresources and Biorefinery Laboratory, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia; (M.K.K.-A.); (A.H.A.H.); (N.S.N.M.)
- Correspondence: authors: (K.M.S.); (S.Z.)
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Sharafeldin M, Davis JJ. Characterising the biosensing interface. Anal Chim Acta 2022; 1216:339759. [DOI: 10.1016/j.aca.2022.339759] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/08/2022] [Accepted: 03/22/2022] [Indexed: 12/19/2022]
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Enterococcus spp. Cell-Free Extract: An Abiotic Route for Synthesis of Selenium Nanoparticles (SeNPs), Their Characterisation and Inhibition of Escherichia coli. NANOMATERIALS 2022; 12:nano12040658. [PMID: 35214986 PMCID: PMC8876312 DOI: 10.3390/nano12040658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/13/2022] [Accepted: 02/14/2022] [Indexed: 12/10/2022]
Abstract
Selenite (SeO32−), the most toxic and most reactive selenium (Se) oxyanion, can be reduced to elemental selenium (Se0) nanoparticles by a variety of bacteria, including Enterococcus spp. Previously, the orthodox view held that the reduction of SeO32− to Se0 by a wide range of bacteria was solely accomplished by biological processes; however, recent studies have shown that various bacterial strains secrete metal-reducing metabolites, thereby indirectly catalysing the reduction of these metal species. In the current study, selenium nanoparticles were synthesised from the abiotic reduction of selenite with the use of Enterococcus spp. cell-free extract. Once separated from the cell-free extract, the particles were analysed using Fourier-transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), Transmission electron microscopy (TEM) and a Zetasizer. The results revealed that the SeNPs were spherical in shape, containing both amorphous and crystalline properties, and the sizes with the highest frequency ranged close to 200 nm. Additionally, the obtained nanoparticles exhibited antimicrobial properties by directly inhibiting the viability of an E. coli bacterial strain. The results demonstrate not only the potential of abiotic production of SeNPs, but also the potential for these particles as microbial inhibitors in medical or similar fields.
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Bommasamudram J, Muthu A, Devappa S. Effect of sub-lethal heat stress on viability of Lacticaseibacillus casei N in spray-dried powders. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Khan MR, Hoque SM, Hossain KFB, Siddique MAB, Uddin MK, Rahman MM. Green synthesis of silver nanoparticles using Hibiscus sabdariffa leaf extract and its cytotoxicity assay. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2021.2025091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Md. Rokonujaman Khan
- Department of Environmental Sciences, Jahangirnagar University, Savar, Bangladesh
- Instructor Class “B”, Army Medical Corps Centre and School, Ghatail, Bangladesh
| | | | | | - Md. Abu Bakar Siddique
- Institute of National Analytical Research and Service (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Bangladesh
| | - Md. Khabir Uddin
- Department of Environmental Sciences, Jahangirnagar University, Savar, Bangladesh
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Changez M, Anwar MF, Al-Ghenaime S, Kapoor S, Balushi RA, Chaudhuri A. Synergic effect of aqueous extracts of Ocimum sanctum and Trigonella foenum-graecum L on the in situ green synthesis of silver nanoparticles and as a preventative agent against antibiotic-resistant food spoiling organisms. RSC Adv 2022; 12:1425-1432. [PMID: 35425194 PMCID: PMC8978925 DOI: 10.1039/d1ra08098a] [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: 11/04/2021] [Accepted: 12/15/2021] [Indexed: 11/21/2022] Open
Abstract
The combination of Ocimum sanctum and Trigonella foenum-graecum L leaf water extract synergistically acts as a reducing and capping agent for the synthesis of narrow polydisperse silver nanoparticles (Ag NPs) with controlled sizes depending on the precursor (AgNO3) concentration in the plant extract. The toxicity of 40 nm-sized green synthesized Ag NPs is less than that of 10 nm-sized NPs. The Ag NP solution in Ocimum sanctum and Trigonella foenum-graecum L leaf water extract shows synergic antibacterial effect on Gram-negative bacteria by effecting the ester group of the lipids (hydrolysis) and also breaking the amide bonds of the bacterial chemical constituents, which leads to their rapid death. Combining Ocimum sanctum and Trigonella foenum-graecum L leaf water extracts synergistically act as a reducing and capping agent for the synthesis of narrow polydisperse silver nanoparticles with controlled sizes depending on the precursor (AgNO3) concentration.![]()
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Affiliation(s)
- Mohammad Changez
- College of Applied and Health Sciences, A' Sharqiyah University Ibra 400 Sultanate of Oman
| | | | - Said Al-Ghenaime
- College of Applied and Health Sciences, A' Sharqiyah University Ibra 400 Sultanate of Oman
| | - Sumeet Kapoor
- Centre for Biomedical Engineering, Indian Institute of Technology Delhi (IITD) India
| | - Rayya Al Balushi
- College of Applied and Health Sciences, A' Sharqiyah University Ibra 400 Sultanate of Oman
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ALHarthi SS, BinShabaib M, Saad AlMasoud N, Shawky HA, Aabed KF, Alomar TS, AlBrekan AB, Alfaifi AJ, Melaibari AA. Myrrh mixed with silver nanoparticles demonstrates superior antimicrobial activity against Porphyromonas gingivalis compared to myrrh and silver nanoparticles alone. Saudi Dent J 2021; 33:890-896. [PMID: 34938030 PMCID: PMC8665180 DOI: 10.1016/j.sdentj.2021.09.009] [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: 11/01/2020] [Revised: 06/08/2021] [Accepted: 09/05/2021] [Indexed: 11/28/2022] Open
Abstract
Myrrh mouthwash (MM) is used against an oral health microbe that causes gingivitis. Adding silver nanoparticles (SN) may increase antimicrobial activity (AA). Our laboratory analysis compared AA between MM with and without SN. After 48 h, AA between MM with and without SN was similar. Adding SN to MM does not increase antimicrobial activity.
Introduction Gingivitis is an oral condition characterized by inflammation and bleeding of the gingiva (gums), largely caused by Porphyromonas gingivalis. Oral hygiene options for controlling P. gingivalis include mouthwash containing Commiphora myrrha (myrrh), which has been shown to be effective against the microbe. Silver nanoparticles (SN) have been studied for their antibacterial effect in different oral health applications, including mouthwash. This was an in vitro laboratory study of the anti-microbial actions of myrrh and SN against P. gingivalis. Methods We compared the anti-microbial properties against P. gingivalis of four solutions: a) placebo solution, b) myrrh solution (MS), c) MS mixed with silver nanoparticles (MSN), and d) SN suspension alone. Sixteen agar plates were divided into four groups of four plates, and each group was treated with one of the solutions/suspensions. The solution/suspension was administered on the agar disc diffusion method, and inhibition zones (IZs) were measured after 24 (time 1), 48 (time 2), and 72 h (time 3). To characterize MSN and SN, Fourier-transform infrared spectroscopy (FT-IR) was used. UV–Vis spectroscopy and energy dispersive X-ray (EDX) were used to further characterize MSN. Results After 24 h, the median IZ for the MS plates was 16 mm, and the median IZ for MSN plates was 15 mm. At time 2, the MS median IZ was 15 mm, but the MSN median IZ increased to 18 mm, and the interquartile ranges (IQRs) did not overlap. At time 3, the median IZs was similar again, with MSN and MS having IZs of 16 mm and 15 mm, respectively. SN alone showed no anti-microbial activity. Conclusions Our findings show that MSN displayed superior anti-microbial activity against P. gingivalis compared to MS and SN after 48 h of incubation, but not after 24 h. Also, the increased anti-microbial activity had ceased by 72 h.
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Affiliation(s)
- Shatha Subhi ALHarthi
- Department of Preventive Dental Sciences, Periodontology Division, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Munerah BinShabaib
- Department of Preventive Dental Sciences, Periodontology Division, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Najla Saad AlMasoud
- Department of Chemistry, College of Science, Princess Nourah bint Abdul Rahman University, Riyadh, Saudi Arabia
| | - Heba Ahmed Shawky
- Department of Preventive Dental Sciences, Periodontology Division, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Kawther F Aabed
- Department of Biology, College of Science, Princess Nourah bint Abdul Rahman University, Riyadh, Saudi Arabia
| | - Taghrid S Alomar
- Department of Chemistry, College of Science, Princess Nourah bint Abdul Rahman University, Riyadh, Saudi Arabia
| | - AlHanouf B AlBrekan
- Dental Intern, College of Dentistry, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Afrah Jaber Alfaifi
- Dental Intern, College of Dentistry, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
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Patil SB, Hublikar LV, Raghavendra N, Shanbhog C, Kamble A. Synthesis and exploration of anticancer activity of silver nanoparticles using Pandanus amaryllifolius Roxb. leaf extract: Promising approach against lung cancer and breast cancer cell lines. Biologia (Bratisl) 2021. [DOI: 10.1007/s11756-021-00878-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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