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High-Efficiency DNA Extraction Using Poly(4,4′-Cyclohexylidene Bisphenol Oxalate)-Modified Microcrystalline Cellulose-Magnetite Composite. INT J POLYM SCI 2019. [DOI: 10.1155/2019/5738613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In this study, we studied the DNA extraction capability of poly(4,4′-cyclohexylidene bisphenol oxalate) following the surface modification and composite formation with that of microcrystalline cellulose (MCC) and magnetic iron oxide nanoparticles (NPs). The physical characterization techniques like scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, energy-dispersive X-ray analysis (EDX), and thermogravimetric analysis (TGA) were employed for the poly(bisphenol Z oxalate)-MCC-magnetite composite during different stages of its formation. The results confirmed the successful modification of the polymer surface. On testing in the presence of three types of binding buffers, a high value of 72.4% (out of 10,000 ng/μL) efficiency with a total yield of DNA at 2×106 ng and absorbance ratio of A260/A280 (1.980) was observed for the 2 M GuHCl/EtOH binding buffer. These results were compared against the other two buffers of phosphate-buffered saline (PBS) and NaCl. The lowest value of DNA extraction efficiency at 8125 ng/μL of 58.845% with absorbance ratios of A260/A280 (1.818) for PBS was also observed. The study has concluded an enhancement in the DNA extraction efficiency when the polymer is in the composite stage along with cellulose and magnetite particles as compared against the bare polymer.
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Maleki H, Rai A, Pinto S, Evangelista M, Cardoso RMS, Paulo C, Carvalheiro T, Paiva A, Imani M, Simchi A, Durães L, Portugal A, Ferreira L. High Antimicrobial Activity and Low Human Cell Cytotoxicity of Core-Shell Magnetic Nanoparticles Functionalized with an Antimicrobial Peptide. ACS APPLIED MATERIALS & INTERFACES 2016; 8:11366-11378. [PMID: 27074633 DOI: 10.1021/acsami.6b03355] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Superparamagnetic iron oxide nanoparticles (SPIONs) functionalized with antimicrobial agents are promising infection-targeted therapeutic platforms when coupled with external magnetic stimuli. These antimicrobial nanoparticles (NPs) may offer advantages in fighting intracellular pathogens as well as biomaterial-associated infections. This requires the development of NPs with high antimicrobial activity without interfering with the biology of mammalian cells. Here, we report the preparation of biocompatible antimicrobial SPION@gold core-shell NPs based on covalent immobilization of the antimicrobial peptide (AMP) cecropin melittin (CM) (the conjugate is named AMP-NP). The minimal inhibitory concentration (MIC) of the AMP-NP for Escherichia coli was 0.4 μg/mL, 10-times lower than the MIC of soluble CM. The antimicrobial activity of CM depends on the length of the spacer between the CM and the NP. AMP-NPs are taken up by endothelial (between 60 and 170 pg of NPs per cell) and macrophage (between 18 and 36 pg of NPs per cell) cells and accumulate preferentially in endolysosomes. These NPs have no significant cytotoxic and pro-inflammatory activities for concentrations up to 200 μg/mL (at least 100 times higher than the MIC of soluble CM). Our results in membrane models suggest that the selectivity of AMP-NPs for bacteria and not eukaryotic membranes is due to their membrane compositions. The AMP-NPs developed here open new opportunities for infection-site targeting.
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Affiliation(s)
- Hajar Maleki
- CIEPQPF, Department of Chemical Engineering, University of Coimbra , 3030-790 Coimbra, Portugal
| | - Akhilesh Rai
- Biocant-Biotechnology Innovation Center, 3060-197 Cantanhede, Portugal
- CNC-Center of Neurosciences and Cell Biology, University of Coimbra , 3004-517 Coimbra, Portugal
| | - Sandra Pinto
- Biocant-Biotechnology Innovation Center, 3060-197 Cantanhede, Portugal
- CNC-Center of Neurosciences and Cell Biology, University of Coimbra , 3004-517 Coimbra, Portugal
| | - Marta Evangelista
- Biocant-Biotechnology Innovation Center, 3060-197 Cantanhede, Portugal
- CNC-Center of Neurosciences and Cell Biology, University of Coimbra , 3004-517 Coimbra, Portugal
| | - Renato M S Cardoso
- Biocant-Biotechnology Innovation Center, 3060-197 Cantanhede, Portugal
- CNC-Center of Neurosciences and Cell Biology, University of Coimbra , 3004-517 Coimbra, Portugal
| | - Cristiana Paulo
- Biocant-Biotechnology Innovation Center, 3060-197 Cantanhede, Portugal
- CNC-Center of Neurosciences and Cell Biology, University of Coimbra , 3004-517 Coimbra, Portugal
| | - Tiago Carvalheiro
- Blood and Transplantation Center of Coimbra, Portuguese Institute of Blood and Transplantation , 3041-861 Coimbra, Portugal
| | - Artur Paiva
- Blood and Transplantation Center of Coimbra, Portuguese Institute of Blood and Transplantation , 3041-861 Coimbra, Portugal
| | - Mohammad Imani
- Novel Drug Delivery Systems Department, Iran Polymer and Petrochemical Institute , 13115-14977 Tehran, Iran
| | - Abdolreza Simchi
- Department of Material Science and Engineering, Sharif University of Technology , 11365-11155 Tehran, Iran
- Institute for Nanoscience and Nanotechnology, Sharif University of Technology , 11365-11155 Tehran, Iran
| | - Luísa Durães
- CIEPQPF, Department of Chemical Engineering, University of Coimbra , 3030-790 Coimbra, Portugal
| | - António Portugal
- CIEPQPF, Department of Chemical Engineering, University of Coimbra , 3030-790 Coimbra, Portugal
| | - Lino Ferreira
- Biocant-Biotechnology Innovation Center, 3060-197 Cantanhede, Portugal
- CNC-Center of Neurosciences and Cell Biology, University of Coimbra , 3004-517 Coimbra, Portugal
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Ma J, Wang J, Zhong X, Li G, Song Y. Synthesis of Sn(1−x)Fex@FeySn(1−y)Oznanohybrids via a simple programmed microfluidic process. RSC Adv 2016. [DOI: 10.1039/c6ra17768a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Two kinds of nanohybrids were synthesized successfully by a microfluidic process through tuning just the temperature.
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Affiliation(s)
- Jugang Ma
- Center for Modern Physics Technology
- Department of Applied Physics
- School of Mathematics and Physics
- University of Science & Technology Beijing
- Beijing 100083
| | - Junmei Wang
- Center for Modern Physics Technology
- Department of Applied Physics
- School of Mathematics and Physics
- University of Science & Technology Beijing
- Beijing 100083
| | - Xiaodi Zhong
- School of Materials Science and Engineering
- Beihang University
- Beijing 100191
- China
| | - Getian Li
- Center for Modern Physics Technology
- Department of Applied Physics
- School of Mathematics and Physics
- University of Science & Technology Beijing
- Beijing 100083
| | - Yujun Song
- Center for Modern Physics Technology
- Department of Applied Physics
- School of Mathematics and Physics
- University of Science & Technology Beijing
- Beijing 100083
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Khairi NAS, Yusof NA, Abdullah AH, Mohammad F. Removal of toxic mercury from petroleum oil by newly synthesized molecularly-imprinted polymer. Int J Mol Sci 2015; 16:10562-77. [PMID: 26006226 PMCID: PMC4463662 DOI: 10.3390/ijms160510562] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 03/25/2015] [Accepted: 04/16/2015] [Indexed: 11/16/2022] Open
Abstract
In recent years, molecularly-imprinted polymers (MIPs) have attracted the attention of several researchers due to their capability for molecular recognition, easiness of preparation, stability and cost-effective production. By taking advantage of these facts, Hg(II) imprinted and non-imprinted copolymers were prepared by polymerizing mercury nitrate stock solution (or without it) with methacrylic acid (MAA), 2-hydroxyl ethyl methacrylate (HEMA), methanol and ethylene glycol dimethacrylate (EGDMA) as the monomer, co-monomer solvent (porogen) and cross-linker, respectively. Thus, the formed Hg(II) imprinted polymer was characterized by using Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), Brunauer, Emmett and Teller (BET) and thermal gravimetric analysis (TGA). The separation and preconcentration characteristics of Hg(II) imprinted polymer were investigated by solid phase extraction (SPE) procedures, and an optimal pH of 7 was investigated as ideal. The specific surface area of the Hg(II) imprinted polymer was found to be 19.45 m2/g with a size range from 100 to 140 µm in diameter. The maximum adsorption capacity was observed to be 1.11 mg/g of Hg(II) imprinted beads with 87.54% removal of Hg(II) ions within the first 5 min. The results of the study therefore confirm that the Hg(II) imprinted polymer can be used multiple times without significantly losing its adsorption capacity.
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Affiliation(s)
- Nor Ain Shahera Khairi
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Nor Azah Yusof
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
- Institute of Advanced Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Abdul Halim Abdullah
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Faruq Mohammad
- Institute of Advanced Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
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Capangpangan RY, dela Rosa MAC, Obena RP, Chou YJ, Tzou DL, Shih SJ, Chiang MH, Lin CC, Chen YJ. Monodispersity of magnetic immuno-nanoprobes enhances the detection sensitivity of low abundance biomarkers in one drop of serum. Analyst 2015; 140:7678-86. [DOI: 10.1039/c5an01530h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A streamlined protocol for biocompatible monodisperse magnetic nanoparticles for sensitive detection of low abundance protein biomarkers.
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Affiliation(s)
- Rey Y. Capangpangan
- Department of Chemistry
- National Tsing Hua University
- Hsinchu
- Taiwan
- Molecular Science and Technology
| | - Mira Anne C. dela Rosa
- Department of Chemistry
- National Taiwan University
- Taipei
- Taiwan
- Nano Science and Technology Program
| | | | - Yu-Jen Chou
- Department of Material Science and Engineering
- National Taiwan University of Science and Technology
- Taipei
- Taiwan
| | - Der-Lii Tzou
- Institute of Chemistry
- Academia Sinica
- Taipei
- Taiwan
| | - Shao-Ju Shih
- Department of Material Science and Engineering
- National Taiwan University of Science and Technology
- Taipei
- Taiwan
| | | | - Chun-Cheng Lin
- Department of Chemistry
- National Tsing Hua University
- Hsinchu
- Taiwan
| | - Yu-Ju Chen
- Department of Chemistry
- National Taiwan University
- Taipei
- Taiwan
- Institute of Chemistry
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He W, Hosseinkhani H, Mohammadinejad R, Roveimiab Z, Hueng DY, Ou KL, Domb AJ. Polymeric nanoparticles for therapy and imaging. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3381] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Wenjie He
- Graduate Institute of Biomedical Engineering; National Taiwan University of Science and Technology (Taiwan Tech); Taipei 10607 Taiwan
| | - Hossein Hosseinkhani
- Graduate Institute of Biomedical Engineering; National Taiwan University of Science and Technology (Taiwan Tech); Taipei 10607 Taiwan
- Nanomedicine Research Center of Taiwan, Research Center for Biomedical devices and Prototyping Production, Research Center for Biomedical Implants and Microsurgery Devices, Graduate Institute of Biomedical Materials and Engineering; College of Oral Medicine, Taipei Medical University, and Department of Dentistry, Taipei Medical University-Shuang-Ho Hospital; Taipei 110 Taiwan
| | - Reza Mohammadinejad
- Graduate Institute of Biomedical Engineering; National Taiwan University of Science and Technology (Taiwan Tech); Taipei 10607 Taiwan
| | - Ziba Roveimiab
- Graduate Institute of Biomedical Engineering; National Taiwan University of Science and Technology (Taiwan Tech); Taipei 10607 Taiwan
| | - Dueng-Yuan Hueng
- Department of Biochemistry; National Defense Medical Center, Department of Neurological Surgery, Tri-Service General Hospital; Taipei 114 Taiwan
| | - Keng-Liang Ou
- Nanomedicine Research Center of Taiwan, Research Center for Biomedical devices and Prototyping Production, Research Center for Biomedical Implants and Microsurgery Devices, Graduate Institute of Biomedical Materials and Engineering; College of Oral Medicine, Taipei Medical University, and Department of Dentistry, Taipei Medical University-Shuang-Ho Hospital; Taipei 110 Taiwan
| | - Abraham J. Domb
- Institute of Drug Research, The Center for Nanoscience and Nanotechnology, School of Pharmacy-Faculty of Medicine; The Hebrew University of Jerusalem; Jerusalem 91120 Israel
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Mohammad F, Yusof NA. Doxorubicin-loaded magnetic gold nanoshells for a combination therapy of hyperthermia and drug delivery. J Colloid Interface Sci 2014; 434:89-97. [PMID: 25170601 DOI: 10.1016/j.jcis.2014.07.025] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/17/2014] [Accepted: 07/18/2014] [Indexed: 10/24/2022]
Abstract
In the present work, nanohybrid of an anticancer drug, doxorubicin (Dox) loaded gold-coated superparamagnetic iron oxide nanoparticles (SPIONs@Au) were prepared for a combination therapy of cancer by means of both hyperthermia and drug delivery. The Dox molecules were conjugated to SPIONs@Au nanoparticles with the help of cysteamine (Cyst) as a non-covalent space linker and the Dox loading efficiency was investigated to be as high as 0.32 mg/mg. Thus synthesized particles were characterized by HRTEM, UV-Vis, FT-IR, SQUID magnetic studies and further tested for heat and drug release at low frequency oscillatory magnetic fields. The hyperthermia studies investigated to be strongly influenced by the applied frequency and the solvents used. The Dox delivery studies indicated that the drug release efficacy is strongly improved by maintaining the acidic pH conditions and the oscillatory magnetic fields, i.e. an enhancement in the Dox release was observed from the oscillation of particles due to the applied frequency, and is not effected by heating of the solution. Finally, the in vitro cell viability and proliferation studies were conducted using two different immortalized cell lines containing a cancerous (MCF-7 breast cancer) and non-cancerous H9c2 cardiac cell type.
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Affiliation(s)
- Faruq Mohammad
- Institute of Advanced Technology, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia; Environmental Toxicology, Southern University and A&M College, Baton Rouge, LA 70813, USA.
| | - Nor Azah Yusof
- Institute of Advanced Technology, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
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Krishna KS, Tarakeshwar P, Mujica V, Kumar CSSR. Chemically induced magnetism in atomically precise gold clusters. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:907-911. [PMID: 24150895 DOI: 10.1002/smll.201302393] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Indexed: 06/02/2023]
Abstract
Comparative theoretical and experimental investigations are reported into chemically induced magnetism in atomically-precise, ligand-stabilized gold clusters Au25 , Au38 and Au55 . The results indicate that [Au25 (PPh3 )10 (SC12 H25 )5 Cl2 ](2+) and Au38 (SC12 H25 )24 are diamagnetic, Au25 (SC2 H4 Ph)18 is paramagnetic, and Au55 (PPh3 )12 Cl6 , is ferromagnetic at room temperature. Understanding the magnetic properties resulting from quantum size effects in such atomically precise gold clusters could lead to new fundamental discoveries and applications.
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Affiliation(s)
- Katla Sai Krishna
- Center for Advanced Microstructures and Devices (CAMD), Louisiana State University Baton Rouge, LA 70806, USA Center for Atomic-Level Catalyst Design, #324, Cain Department of Chemical Engineering Louisiana State University, Baton Rouge, LA, 70803, USA
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Crespo P, de la Presa P, Marín P, Multigner M, Alonso JM, Rivero G, Yndurain F, González-Calbet JM, Hernando A. Magnetism in nanoparticles: tuning properties with coatings. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2013; 25:484006. [PMID: 24201075 DOI: 10.1088/0953-8984/25/48/484006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This paper reviews the effect of organic and inorganic coatings on magnetic nanoparticles. The ferromagnetic-like behaviour observed in nanoparticles constituted by materials which are non-magnetic in bulk is analysed for two cases: (a) Pd and Pt nanoparticles, formed by substances close to the onset of ferromagnetism, and (b) Au and ZnO nanoparticles, which were found to be surprisingly magnetic at the nanoscale when coated by organic surfactants. An overview of theories accounting for this unexpected magnetism, induced by the nanosize influence, is presented. In addition, the effect of coating magnetic nanoparticles with biocompatible metals, oxides or organic molecules is also reviewed, focusing on their applications.
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Sapsford KE, Algar WR, Berti L, Gemmill KB, Casey BJ, Oh E, Stewart MH, Medintz IL. Functionalizing nanoparticles with biological molecules: developing chemistries that facilitate nanotechnology. Chem Rev 2013; 113:1904-2074. [PMID: 23432378 DOI: 10.1021/cr300143v] [Citation(s) in RCA: 818] [Impact Index Per Article: 74.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Kim E Sapsford
- Division of Biology, Department of Chemistry and Materials Science, Office of Science and Engineering Laboratories, U.S. Food and Drug Administration, Silver Spring, Maryland 20993, United States
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Gaur S, Miller JT, Stellwagen D, Sanampudi A, Kumar CSSR, Spivey JJ. Synthesis, characterization, and testing of supported Au catalysts prepared from atomically-tailored Au38(SC12H25)24clusters. Phys Chem Chem Phys 2012; 14:1627-34. [DOI: 10.1039/c1cp22438g] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Kumar CSSR, Mohammad F. Magnetic nanomaterials for hyperthermia-based therapy and controlled drug delivery. Adv Drug Deliv Rev 2011; 63:789-808. [PMID: 21447363 PMCID: PMC3138885 DOI: 10.1016/j.addr.2011.03.008] [Citation(s) in RCA: 777] [Impact Index Per Article: 59.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Revised: 01/25/2011] [Accepted: 03/22/2011] [Indexed: 11/19/2022]
Abstract
Previous attempts to review the literature on magnetic nanomaterials for hyperthermia-based therapy focused primarily on magnetic fluid hyperthermia (MFH) using mono metallic/metal oxide nanoparticles. The term "hyperthermia" in the literature was also confined only to include use of heat for therapeutic applications. Recently, there have been a number of publications demonstrating magnetic nanoparticle-based hyperthermia to generate local heat resulting in the release of drugs either bound to the magnetic nanoparticle or encapsulated within polymeric matrices. In this review article, we present a case for broadening the meaning of the term "hyperthermia" by including thermotherapy as well as magnetically modulated controlled drug delivery. We provide a classification for controlled drug delivery using hyperthermia: Hyperthermia-based controlled drug delivery through bond breaking (DBB) and hyperthermia-based controlled drug delivery through enhanced permeability (DEP). The review also covers, for the first time, core-shell type magnetic nanomaterials, especially nanoshells prepared using layer-by-layer self-assembly, for the application of hyperthermia-based therapy and controlled drug delivery. The highlight of the review article is to portray potential opportunities for the combination of hyperthermia-based therapy and controlled drug release paradigms--towards successful application in personalized medicine.
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Affiliation(s)
- Challa S S R Kumar
- Center for Advanced Microstructures & Devices, Louisiana State University, 6980 Jefferson Highway, Baton Rouge, LA 70806, USA.
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