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Ejaz U, Rashid R, Ahmed S, Narejo KK, Qasim A, Sohail M, Ali ST, Althakafy JT, Alanazi AK, Abo-Dief HM, Moin SF. Synthesis of methylcellulose-polyvinyl alcohol composite, biopolymer film and thermostable enzymes from sugarcane bagasse. Int J Biol Macromol 2023; 235:123903. [PMID: 36870634 DOI: 10.1016/j.ijbiomac.2023.123903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 02/09/2023] [Accepted: 02/27/2023] [Indexed: 03/06/2023]
Abstract
Agro-industrial wastes and by-products are the natural and abundant resources of biomaterials to obtain various value-added items such as biopolymer films, bio-composites and enzymes. This study presents a way to fractionate and to convert an agro-industrial residue, sugarcane bagasse (SB), into useful materials with potential applications. Initially cellulose was extracted from SB which was then converted into methylcellulose. The synthesized methylcellulose was characterized by scanning electron microscopy and FTIR. Biopolymer film was prepared by using methylcellulose, polyvinyl alcohol (PVA), glutaraldehyde, starch and glycerol. The biopolymer was characterized to exhibit 16.30 MPa tensile strength, 0.05 g/m2 h of water vapor transmission rate, 366 % of water absorption to its original weight after 115 min of immersion, 59.08 % water solubility, 99.05 % moisture retention capability and 6.01 % of moisture absorption after 144 h. Furthermore, in vitro studies on absorption and dissolution of model drug by biopolymer showed 2.04 and 104.59 % of swelling ratio and equilibrium water content, respectively. Biocompatibility of the biopolymer was checked by using gelatin media and it was observed that swelling ratio was higher in initial 20 min of contact. The extracted hemicellulose and pectin from SB were fermented by a thermophilic bacterial strain, Neobacillus sedimentimangrovi UE25 that yielded 12.52 and 6.4 IU mL-1 of xylanase and pectinase, respectively. These industrially important enzymes further augmented the utility of SB in this study. Therefore, this study emphasizes the possibility for industrial application of SB to form various products.
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Affiliation(s)
- Uroosa Ejaz
- Department of Biosciences, Shaheed Zulfikar Ali Bhutto Institute of Science and Technology (SZABIST), Karachi 75600, Pakistan
| | - Rozina Rashid
- Department of Microbiology, University of Karachi, Karachi 75270, Pakistan; Department of Microbiology, University of Balochistan, Quetta, Pakistan
| | - Shehmir Ahmed
- Department of Biosciences, Shaheed Zulfikar Ali Bhutto Institute of Science and Technology (SZABIST), Karachi 75600, Pakistan
| | - Kiran Khan Narejo
- Department of Biosciences, Shaheed Zulfikar Ali Bhutto Institute of Science and Technology (SZABIST), Karachi 75600, Pakistan
| | - Ayesha Qasim
- Department of Biosciences, Shaheed Zulfikar Ali Bhutto Institute of Science and Technology (SZABIST), Karachi 75600, Pakistan
| | - Muhammad Sohail
- Department of Microbiology, University of Karachi, Karachi 75270, Pakistan.
| | - Syed Tariq Ali
- Department of Chemistry, University of Karachi, Karachi 75270, Pakistan
| | - Jalal T Althakafy
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah 24230, Saudi Arabia
| | - Abdullah K Alanazi
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Hala M Abo-Dief
- Department of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Syed Faraz Moin
- Dr Zafar H Zaidi Center for Proteomic (formerly National Center for Proteomics), University of Karachi, Karachi 75270, Pakistan
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Nueraji M, Toktarbay Z, Ardakkyzy A, Sridhar D, Algadi H, Xu BB, Althakafy JT, Alanazi AK, Abo-Dief HM, Adilov S, Guo Z. Mechanically-robust electrospun nanocomposite fiber membranes for oil and water separation. Environ Res 2023; 220:115212. [PMID: 36623680 DOI: 10.1016/j.envres.2023.115212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/20/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
Mechanically-robust nanocomposite membranes have been developed via crosslinking chemistry and electrospinning technique based on the rational selection of dispersed phase materials with high Young's modulus (i.e., graphene and multiwalled carbon nanotubes) and Cassie-Baxter design and used for oil and water separation. Proper selection of dispersed phase materials can enhance the stiffness of nanocomposite fiber membranes while their length has to be larger than their critical length. Chemical modification of the dispersed phase materials with fluorochemcials and their induced roughness were critical to achieve superhydrophobocity. Surface analytic tools including goniometer, X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, atomic force microscopy (AFM) and scanning electron microscope (SEM) were applied to characterize the superhydrophobic nanocomposite membranes. An AFM-based nanoindentation technique was used to measure quantitativly the stiffness of the nanocomposite membranes for local region and whole composites, compared with the results by a tensile test technique. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) techniques were used to confirm composition and formation of nanocomposite membranes. These membranes demonstrated excellent oil/water separation. This work has potential application in the field of water purification and remediation.
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Affiliation(s)
- Marat Nueraji
- Edward R. Murrow High School, Brooklyn, NY, 11230, USA
| | - Zhexenbek Toktarbay
- Renewable Energy Systems and Material Science Laboratory, National Laboratory Astana (NLA), Nazarbayev University, Kabanbay Batyr 53, Astana, 010000, Kazakhstan.
| | - Aida Ardakkyzy
- Department of Chemistry, School of Science and Humanities, Nazarbayev University, Kabanbay Batyr 53, Astana, 010000, Kazakhstan
| | - Deepak Sridhar
- Department of Chemical and Biological Engineering, University of Tennessee, Knoxville, TN, USA; Zentek Ltd. 24 Corporate Crt, Guelph, Ontario, N1G 5G5, Canada
| | - Hassan Algadi
- Department of Electrical Engineering, Faculty of Engineering, Najran University, Najran, 11001, Saudi Arabia
| | - Ben Bin Xu
- Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
| | - Jalal T Althakafy
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, 24230, Saudi Arabia
| | - Abdullah K Alanazi
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Hala M Abo-Dief
- Department of Science and Technology, University College-Ranyah, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia
| | - Salimgerey Adilov
- Department of Chemistry, School of Science and Humanities, Nazarbayev University, Kabanbay Batyr 53, Astana, 010000, Kazakhstan.
| | - Zhanhu Guo
- Department of Chemical and Biological Engineering, University of Tennessee, Knoxville, TN, USA; Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK; Integrated Composites Lab (ICL), Department of Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK.
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3
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Al-bonayan A, Althakafy JT, Alorabi AQ, Alamrani NA, Aljuhani EH, Alaysuy O, Al-Qahtani SD, El-Metwaly NM. Novel Copper Oxide-Integrated Carbon Paste Tirofiban Voltammetric Sensor. ACS Omega 2023; 8:5042-5049. [PMID: 36777607 PMCID: PMC9909784 DOI: 10.1021/acsomega.2c07790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
The present study introduced the construction and electroanalytical characterization of novel tirofiban (TIR) carbon paste voltammetric sensors integrated with copper oxide nanoparticles. The copper oxide nanostructure remarkably enhanced the oxidation of TIR molecules on the electrode surface with an irreversible anodic oxidation peak at about 1.18 V. The peak current values of the recorded differential pulse voltammograms were correlated to the TIR concentrations within a defined linear range from 0.060 to 7.41 μg mL-1 with an LOD value of 20.7 ng mL-1. Based on the electrochemical behavior of TIR at different scan rates and with the aid of the molecular orbital calculations performed on the TIR molecule, the electro-oxidation reaction was postulated to undergo through the oxidation of the five-membered-ring nitrogen atom with the transfer of one electron and one proton. Based on the reported selectivity and sensitivity of the proposed method, TIR was successfully determined in Aggrastat intravenous infusion and biological samples with mean average recoveries agreeable with the UV spectrophotometric method.
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Affiliation(s)
- Ameena
M. Al-bonayan
- Department
of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah21961, Saudi Arabia
| | - Jalal T. Althakafy
- Department
of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah21961, Saudi Arabia
| | - Ali Q. Alorabi
- Department
of Chemistry, Faculty of Sciences, Albaha
University, P.O. Box 1988, Albaha65799, Saudi Arbia
| | - Nasser A. Alamrani
- Department
of Chemistry, Faculty of Science, University
of Tabuk, Tabuk71474, Saudi Arabia
| | - Enas H. Aljuhani
- Department
of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah21961, Saudi Arabia
| | - Omaymah Alaysuy
- Department
of Chemistry, Faculty of Science, University
of Tabuk, Tabuk71474, Saudi Arabia
| | - Salhah D. Al-Qahtani
- Department
of Chemistry, College of Science, Princess
Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh11671, Saudi Arabia
| | - Nashwa M. El-Metwaly
- Department
of Chemistry, Faculty of Science, Mansoura
University, El-Gomhoria
Street, Mansoura35516, Egypt
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Othman HIA, Alkatib HH, Zaid A, Sasidharan S, Rahiman SSF, Lee TP, Dimitrovski G, Althakafy JT, Wong YF. Phytochemical Composition, Antioxidant and Antiproliferative Activities of Citrus hystrix, Citrus limon, Citrus pyriformis, and Citrus microcarpa Leaf Essential Oils against Human Cervical Cancer Cell Line. Plants (Basel) 2022; 12:134. [PMID: 36616263 PMCID: PMC9823843 DOI: 10.3390/plants12010134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
The essential oil derived from Citrus plants has long been used for medicinal purposes, due to its broad spectrum of therapeutic characteristics. To date, approximately 162 Citrus species have been identified, and many investigational studies have been conducted to explore the pharmacological potential of Citrus spp. oils. This study investigated the volatile constituents of essential oil distilled from the leaves of C. hystrix, C. limon, C. pyriformis, and C. microcarpa, using gas chromatography-quadrupole mass spectrometry. A total of 80 secondary compounds were tentatively identified, representing 84.88-97.99% of the total ion count and mainly comprising monoterpene (5.20-76.15%) and sesquiterpene (1.36-27.14%) hydrocarbons, oxygenated monoterpenes (3.91-89.52%) and sesquiterpenes (0.21-38.87%), and other minor chemical classes (0.10-0.52%). In particular, 27 compounds (1.19-39.06%) were detected across all Citrus species. Principal component analysis of the identified phytoconstituents and their relative quantities enabled differentiation of the Citrus leaf oils according to their species, with the loading variables contributing to these metabolic differences being identified. The Citrus leaf oils were tested for their antioxidant and antiproliferative activities using 2,2-diphenyl-1-picryl-hydrazylhydrate (DPPH) and 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assays. The results indicated that C. limon displayed the highest DPPH radical scavenging ability (IC50 value of 29.14 ± 1.97 mg/mL), while C. hystrix exhibited the lowest activity (IC50 value of 279.03 ± 10.37 mg/mL). On the other hand, all the Citrus oils exhibit potent antiproliferative activities against the HeLa cervical cancer cell line, with IC50 values of 11.66 μg/mL (C. limon), 20.41 μg/mL (C. microcarpa), 25.91 μg/mL (C. hystrix), and 87.17 μg/mL (C. pyriformis).
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Affiliation(s)
- Haneen Ibrahim Al Othman
- Centre for Research on Multidimensional Separation Science, School of Chemical Sciences, Universiti Sains Malaysia, George Town 11800, Penang, Malaysia
| | - Huda Hisham Alkatib
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, George Town 11800, Penang, Malaysia
| | - Atiqah Zaid
- Centre for Research on Multidimensional Separation Science, School of Chemical Sciences, Universiti Sains Malaysia, George Town 11800, Penang, Malaysia
| | - Sreenivasan Sasidharan
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, George Town 11800, Penang, Malaysia
| | | | - Tien Ping Lee
- RCSI & UCD Malaysia Campus, 4 Jalan Sepoy Lines, George Town 10450, Penang, Malaysia
| | - George Dimitrovski
- Ajoya Capital Limited, World Trade Centre 1, Jl. Jenderal Sudirman Kav. 29-31, Jakarta 12920, Indonesia
| | - Jalal T. Althakafy
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Yong Foo Wong
- Centre for Research on Multidimensional Separation Science, School of Chemical Sciences, Universiti Sains Malaysia, George Town 11800, Penang, Malaysia
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Saber AL, Tuzun B, Alessa H, Althakafy JT. Sertraline: theoretical studies and a new potentiometric PVC membrane sensor for its determination. CURR ANAL CHEM 2022. [DOI: 10.2174/1573411019666221124091744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Background:
Sertraline (ST) hydrochloride is an anti-depressant of the selective serotonin reuptake inhibitor (SSRI) class. Potentiometric sensors are an appealing route for detecting drugs due to some advantages in terms of sensitivity, feasibility, selectivity, fast response, tolerance to turbidity and colour of solutions, and cost-effectiveness.
Methods:
A mixture of polyvinyl chloride powder (PVC) with o-nitrophenyl octyl ether and the ion association complex was dissolved in tetrahydrofuran (THF) to prepare the membrane for the proposed sensor. The sensor was calibrated and then electrochemically used for detecting ST in pharmaceutical samples.
Results:
The near Nernstian response was observed for a concentration of 1.0 x 10-8 – 1.0 x 10-2 mol L-1 with 58.62 mV as a slope per concentration decade. This direct potentiometric measurement resulted in average recoveries of 96.0 ± 0.2%. Moreover, good selectivity for sertraline with respect to many inorganic and organic cations was observed.
Conclusion:
The proposed sensor was simple to use and produced accurate and precise results. The molecule's chemical and biological activities were revealed using theoretical calculations. Regarding the chemical activities, calculations were made on the 3-21g and 6-31g while the SDD bases were set at B3LYP, HF, and the M062X level. Molecular docking calculations were designed against cancer proteins in order to have details regarding the molecule's biological activity.
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Affiliation(s)
- Amr L. Saber
- Department of Chemistry, Faculty of applied science, Umm al-Qura University, Makkah Saudi, Arabia
| | - Burak Tuzun
- Department of Chemistry, Cumhuriyet University, Turkey
| | - Hussain Alessa
- Department of Chemistry, Faculty of applied science, Umm al-Qura University, Saudi Arabia
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6
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Zhang Y, Cao L, Fu H, Zhang M, Meng J, Althakafy JT, Abo-Dief HM, El-Bahy SM, Zhang Y, Wei H, Xu BB, Guo Z. Effect of sulfamethazine on anaerobic digestion of manure mediated by biochar. Chemosphere 2022; 306:135567. [PMID: 35792211 DOI: 10.1016/j.chemosphere.2022.135567] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/13/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
Antibiotic contamination from animal production and wastewater treatment process will release antibiotic resistant genes to the environment and potentially threaten human health. Meanwhile, the residual antibiotic in manure could have inactive impacts on anaerobic digestion (AD). This study explores the effect of sulfamethazine on manure AD mediated by biochar. The results show that biochar weakens the adverse effects of sulfamethazine on AD by adsorption sulfamethazine during the initial stage (0-3 days) of AD and promoting the growth of hydrolytic bacteria (especially Firmicutes and Bacteroidetes) and methanogens (especially Methanothrix and Methanosarcina). Besides, the presence of biochar improves the biogas production capacity of AD and promotes microbial diversity and community richness. Thus, the addition of biochar greatly reduces sulfamethazine and is testified to be a desirable strategy to mitigate the inhibition of sulfamethazine on AD.
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Affiliation(s)
- Yangkai Zhang
- College of Engineering, Shenyang Agricultural University, Shenyang, 110866, China
| | - Liu Cao
- Department of Animal Science, University of Tennessee, Knoxville, 37996, USA
| | - Haibin Fu
- Technology Center, Shenyang Customs, Shenyang, 110016, China
| | - Min Zhang
- College of Engineering, Shenyang Agricultural University, Shenyang, 110866, China.
| | - Jun Meng
- National Biochar Institute of Shenyang Agricultural University, Shenyang, 110866, China; Key Laboratory of Biochar and Soil Improvement, Ministry of Agriculture and Rural Affairs, Shenyang, 110866, China.
| | - Jalal T Althakafy
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Hala M Abo-Dief
- Department of Chemistry, College of Science, Taif University, P.O.Box 11099, Taif, 21944, Saudi Arabia
| | - Salah M El-Bahy
- Department of Chemistry, Turabah University College, Taif University, P.O.Box 11099, Taif, 21944, Saudi Arabia
| | - Yushun Zhang
- College of Engineering, Shenyang Agricultural University, Shenyang, 110866, China
| | - Huanhuan Wei
- College of Engineering, Shenyang Agricultural University, Shenyang, 110866, China
| | - Ben Bin Xu
- Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, UK
| | - Zhanhu Guo
- Integrated Composites Lab (ICL), Department of Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, TN, 37996, USA.
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7
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Alessa H, Saber AL, Althakafy JT. Up-to-date studies regarding the determination of melatonin by chromatographic methods. Arch Pharm (Weinheim) 2021; 355:e2100378. [PMID: 34842297 DOI: 10.1002/ardp.202100378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/31/2021] [Accepted: 11/02/2021] [Indexed: 11/09/2022]
Abstract
Melatonin is an indolic compound that has been reported in the literature to exist in human-based samples, vertebrates, vegetables, fruits, and pharmaceutical products. Melatonin is considered a dietary supplement and can regulate circadian rhythms, although it has not been classified as a drug by the US Food and Drug Administration. Several analytical methods have been used for its detection. This study aimed to summarize the recent outcomes of the chromatographic methods such as electrophoretic methods, gas chromatography, and liquid chromatography, which have been used for the determination of melatonin in the last three decades, with the focus on gas chromatography and high-performance liquid chromatography methods.
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Affiliation(s)
- Hussain Alessa
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Amr L Saber
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia.,Chemistry Department, Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Jalal T Althakafy
- Chemistry Department, Faculty of Applied Science, Umm Al-Qura University, Makkah, Saudi Arabia
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8
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Adhikari A, Mondal S, Chatterjee T, Das M, Biswas P, Ghosh R, Darbar S, Alessa H, Althakafy JT, Sayqal A, Ahmed SA, Das AK, Bhattacharyya M, Pal SK. Redox nanomedicine ameliorates chronic kidney disease (CKD) by mitochondrial reconditioning in mice. Commun Biol 2021; 4:1013. [PMID: 34446827 PMCID: PMC8390471 DOI: 10.1038/s42003-021-02546-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Accepted: 08/02/2021] [Indexed: 12/29/2022] Open
Abstract
Targeting reactive oxygen species (ROS) while maintaining cellular redox signaling is crucial in the development of redox medicine as the origin of several prevailing diseases including chronic kidney disease (CKD) is linked to ROS imbalance and associated mitochondrial dysfunction. Here, we have shown that a potential nanomedicine comprising of Mn3O4 nanoparticles duly functionalized with biocompatible ligand citrate (C-Mn3O4 NPs) can maintain cellular redox balance in an animal model of oxidative injury. We developed a cisplatin-induced CKD model in C57BL/6j mice with severe mitochondrial dysfunction and oxidative distress leading to the pathogenesis. Four weeks of treatment with C-Mn3O4 NPs restored renal function, preserved normal kidney architecture, ameliorated overexpression of pro-inflammatory cytokines, and arrested glomerulosclerosis and interstitial fibrosis. A detailed study involving human embryonic kidney (HEK 293) cells and isolated mitochondria from experimental animals revealed that the molecular mechanism behind the pharmacological action of the nanomedicine involves protection of structural and functional integrity of mitochondria from oxidative damage, subsequent reduction in intracellular ROS, and maintenance of cellular redox homeostasis. To the best of our knowledge, such studies that efficiently treated a multifaceted disease like CKD using a biocompatible redox nanomedicine are sparse in the literature. Successful clinical translation of this nanomedicine may open a new avenue in redox-mediated therapeutics of several other diseases (e.g., diabetic nephropathy, neurodegeneration, and cardiovascular disease) where oxidative distress plays a central role in pathogenesis.
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Affiliation(s)
- Aniruddha Adhikari
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, India
| | - Susmita Mondal
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, India
| | | | - Monojit Das
- Department of Zoology, Uluberia College, University of Calcutta, Uluberia, Howrah, India
- Department of Zoology, Vidyasagar University, Rangamati, Midnapore, India
| | - Pritam Biswas
- Department of Microbiology, St. Xavier's College, Kolkata, India
| | - Ria Ghosh
- Department of Biochemistry, University of Calcutta, Kolkata, India
| | - Soumendra Darbar
- Research & Development Division, Dey's Medical Stores (Mfg.) Ltd, Kolkata, India
| | - Hussain Alessa
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Jalal T Althakafy
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ali Sayqal
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Saleh A Ahmed
- Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
- Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Anjan Kumar Das
- Department of Pathology, Calcutta National Medical College and Hospital, Kolkata, India
| | | | - Samir Kumar Pal
- Department of Chemical, Biological and Macromolecular Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, India.
- Department of Zoology, Uluberia College, University of Calcutta, Uluberia, Howrah, India.
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9
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Casagrande M, Kulsing C, Althakafy JT, Piatnicki CMS, Marriott PJ. Direct Analysis of Synthetic Phenolic Antioxidants, and Fatty Acid Methyl Ester Stability in Biodiesel by Liquid Chromatography and High-Resolution Mass Spectrometry. Chromatographia 2018. [DOI: 10.1007/s10337-018-3681-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Althakafy JT, Kulsing C, Grace MR, Marriott PJ. Front Cover: Determination of selected emerging contaminants in freshwater invertebrates using a universal extraction technique and liquid chromatography accurate mass spectrometry. J Sep Sci 2018. [DOI: 10.1002/jssc.201870191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Althakafy JT, Kulsing C, Grace MR, Marriott PJ. Determination of selected emerging contaminants in freshwater invertebrates using a universal extraction technique and liquid chromatography accurate mass spectrometry. J Sep Sci 2018; 41:3706-3715. [PMID: 30094966 DOI: 10.1002/jssc.201800507] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 08/02/2018] [Accepted: 08/03/2018] [Indexed: 12/14/2022]
Abstract
A simple sample preparation method based on a modified liquid-phase extraction approach to extract selected pharmaceuticals and personal care products from freshwater organisms is described. Extracted samples were analysed using liquid chromatography with Q-Exactive plus hybrid quadrupole Orbitrap mass spectrometry, using 2.6 μm C18 media. A 0.1% v/v acetic acid/acetonitrile mobile phase was applied over a 20 min gradient. Method detection limits in full scan mode were ca. 0.04-2.38 ng of analyte per g of sample. Linearity ranged from 0.9750 to 0.9996 over the calibration range of 0.01-100 μg/L; MS mass accuracy was <2 ppm for most analytes. This method was applied to quantify six pharmaceuticals and personal care products in seven invertebrate samples. For tandem mass spectrometry analysis, selection of precursor ions was performed for each pharmaceutical, with Mass Frontier software illustrating the fragmentation mechanism. Effects of collision energy on intensities of ions was further investigated. The tandem mass spectrometry condition resulting in the highest signal of respective selected product ion was selected to confirm each pharmaceutical, which was initially observed in the full scan mode. Results indicate that pharmaceuticals and personal care products found to be present in water-ways, may be incorporated into organisms that live in the environment of affected water streams.
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Affiliation(s)
- Jalal T Althakafy
- Australian Centre of Research on Separation Science, School of Chemistry, Faculty of Science, Monash University, Clayton, VIC, Australia.,Department of Chemistry, Faculty of Applied Sciences, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Chadin Kulsing
- Chromatography and Separation Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, Thailand.,Center of Molecular Sensory Science, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Michael R Grace
- Water Studies Centre, School of Chemistry, Faculty of Science, Monash University, Clayton, VIC, Australia
| | - Philip J Marriott
- Australian Centre of Research on Separation Science, School of Chemistry, Faculty of Science, Monash University, Clayton, VIC, Australia
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