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Mubula Y, Yu M, Yang D, Niu H, Gu H, Qiu T, Mei G. Microwave-assisted atmospheric alkaline leaching process and leaching kinetics of rare earth melt electrolysis slag. Heliyon 2024; 10:e32278. [PMID: 38873678 PMCID: PMC11170195 DOI: 10.1016/j.heliyon.2024.e32278] [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: 03/05/2024] [Revised: 05/04/2024] [Accepted: 05/31/2024] [Indexed: 06/15/2024] Open
Abstract
This study focuses on the difficulty of converting fluorinated rare earth elements into hydroxylated rare earth elements in rare earth melt electrolysis slag (RMES) and proposes the use of a microwave-assisted atmospheric alkaline leaching method for the treatment of RMES. The leaching behavior of RMES under microwave-assisted atmospheric alkaline leaching was studied, and the optimal reaction conditions were determined. Under the conditions of a reaction temperature of 150 °C, initial NaOH concentration of 60 %, NaOH-to-slag mass ratio of 4:1, microwave power of 700 W, reaction time of 120 min, and stirring speed of 300 r/min, the conversion rate of fluorinated rare earths reached 99.17 %. The apparent rate equation of the microwave-assisted atmospheric alkaline leaching process was obtained by leaching kinetic analysis, and the apparent activation energy under this process was calculated to be 54.872 kJ/mol, which was 12.458 kJ/mol lower than that achieved when conventional heating was used for leaching (67.33 kJ/mol).
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Affiliation(s)
- Yusufujiang Mubula
- Jiangxi Provincial Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metal Mineral Resources, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Mingming Yu
- Jiangxi Provincial Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metal Mineral Resources, Jiangxi University of Science and Technology, Ganzhou, 341000, China
- School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Delong Yang
- Jiangxi Provincial Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metal Mineral Resources, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Heyue Niu
- Jiangxi Provincial Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metal Mineral Resources, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Hongju Gu
- Jiangxi Provincial Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metal Mineral Resources, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Tingsheng Qiu
- Jiangxi Provincial Key Laboratory of Low-Carbon Processing and Utilization of Strategic Metal Mineral Resources, Jiangxi University of Science and Technology, Ganzhou, 341000, China
- School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, China
| | - Guangjun Mei
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, China
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Formulation of Microwave-Assisted Natural-Synthetic Polymer Composite Film and Its Physicochemical Characterization. INT J POLYM SCI 2021. [DOI: 10.1155/2021/9961710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study is aimed at microwave-assisted synthesis of sodium carboxymethylcellulose and Eudragit L100 composite film and its physicochemical characterization. The film was developed with varying quantities of each polymer and treated with microwave at a fixed frequency of 2450 MHz with a power of 350 Watts for 60 and 120 s. All formulations were characterized for thickness/weight uniformity, moisture adsorption, erosion and water uptake, tensile strength, and vibrational, thermal, and surface morphological analysis in comparison with untreated film samples. Results indicated that microwave treatment for 60 s significantly improved the tensile strength, reduced the water adsorption, delayed erosion, and reduced the water uptake in comparison with the untreated and 120 s treated film formulations. The vibrational analysis revealed rigidification of hydrophilic domains at OH/NH moiety and fluidization of hydrophobic domains at asymmetric and symmetric CH moieties, which is envisaged to be due to the formation of new linkages between the two polymers. These were later confirmed by thermal analysis where a significant rise in transition temperature, as well as enthalpy of the system, was recorded. The microwave treatment for 60 s is thus advocated to be the best treatment condition for developing sodium carboxymethylcellulose and Eudragit L100 composite polymeric films.
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Hall F, Liceaga A. Effect of microwave-assisted enzymatic hydrolysis of cricket (Gryllodes sigillatus) protein on ACE and DPP-IV inhibition and tropomyosin-IgG binding. J Funct Foods 2020. [DOI: 10.1016/j.jff.2019.103634] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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Nakouti I, Hobbs G, Teethaisong Y, Phipps D. A demonstration of athermal effects of continuous microwave irradiation on the growth and antibiotic sensitivity ofPseudomonas aeruginosaPAO1. Biotechnol Prog 2016; 33:37-44. [DOI: 10.1002/btpr.2392] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 10/18/2016] [Indexed: 02/04/2023]
Affiliation(s)
- Ismini Nakouti
- Built Environment and Sustainable Technology Research Inst; Liverpool John Moores University; Byrom Street Liverpool L3 3AF U.K
- Pharmacy and Biomolecular Sciences; Liverpool John Moores University; Byrom Street Liverpool L3 3AF U.K
| | - Glyn Hobbs
- Pharmacy and Biomolecular Sciences; Liverpool John Moores University; Byrom Street Liverpool L3 3AF U.K
| | - Yothin Teethaisong
- Pharmacy and Biomolecular Sciences; Liverpool John Moores University; Byrom Street Liverpool L3 3AF U.K
| | - David Phipps
- Built Environment and Sustainable Technology Research Inst., Liverpool John Moores University; Byrom Street Liverpool L3 3AF U.K
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Devi S, Wu BH, Chu PY, Liu YP, Wu HL, Ho YP. Studying the effect of microwave heating on the digestion process and identification of proteins. Electrophoresis 2016; 38:429-440. [PMID: 27770443 DOI: 10.1002/elps.201600392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 10/06/2016] [Accepted: 10/12/2016] [Indexed: 11/07/2022]
Abstract
The impact of microwave irradiation on the in-solution digestion processes and the detection limit of proteins are systematically studied. Kinetic processes of many peptides produced through the trypsin digestion of various proteins under microwave heating at 50°C were investigated with MALDI-MS. This study also examines the detection limits and digestion completeness of individual proteins under microwave heating at 50°C and at different time intervals (1, 5 and 30 min) using LC-MS. We conclude that if the peptides without missed cleavage dictate the detection limit, conventional digestion will lead to a better detection limit. The detection limit may not differ between the microwave and conventional heating if the peptides with missed cleavage sites and strong intensity are formed at the very early stage (i.e., less than 1 min) and are not further digested throughout the entire digestion process. The digestion of Escherichia coli lysate was compared under conventional and short time (microwave) conditions. The number of proteins identified under conventional heating exceeded that obtained from microwave heating over heating periods less than 5 min. The overall results show that the microwave-assisted digestion is not complete. Although the sequence coverage might be better, the detection limit might be worse than that under conventional heating.
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Affiliation(s)
- Shobha Devi
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
| | - Bo-Hung Wu
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
| | - Pei-Yu Chu
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
| | - Yue-Pei Liu
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
| | - Hsin-Lin Wu
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
| | - Yen-Peng Ho
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
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Alves G, Wang G, Ogurtsov AY, Drake SK, Gucek M, Suffredini AF, Sacks DB, Yu YK. Identification of Microorganisms by High Resolution Tandem Mass Spectrometry with Accurate Statistical Significance. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:194-210. [PMID: 26510657 PMCID: PMC4723618 DOI: 10.1007/s13361-015-1271-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 09/04/2015] [Accepted: 09/05/2015] [Indexed: 05/13/2023]
Abstract
Correct and rapid identification of microorganisms is the key to the success of many important applications in health and safety, including, but not limited to, infection treatment, food safety, and biodefense. With the advance of mass spectrometry (MS) technology, the speed of identification can be greatly improved. However, the increasing number of microbes sequenced is challenging correct microbial identification because of the large number of choices present. To properly disentangle candidate microbes, one needs to go beyond apparent morphology or simple 'fingerprinting'; to correctly prioritize the candidate microbes, one needs to have accurate statistical significance in microbial identification. We meet these challenges by using peptidome profiles of microbes to better separate them and by designing an analysis method that yields accurate statistical significance. Here, we present an analysis pipeline that uses tandem MS (MS/MS) spectra for microbial identification or classification. We have demonstrated, using MS/MS data of 81 samples, each composed of a single known microorganism, that the proposed pipeline can correctly identify microorganisms at least at the genus and species levels. We have also shown that the proposed pipeline computes accurate statistical significances, i.e., E-values for identified peptides and unified E-values for identified microorganisms. The proposed analysis pipeline has been implemented in MiCId, a freely available software for Microorganism Classification and Identification. MiCId is available for download at http://www.ncbi.nlm.nih.gov/CBBresearch/Yu/downloads.html . Graphical Abstract ᅟ.
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Affiliation(s)
- Gelio Alves
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20894, USA
| | - Guanghui Wang
- Proteomics Core, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Aleksey Y Ogurtsov
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20894, USA
| | - Steven K Drake
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Marjan Gucek
- Proteomics Core, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Anthony F Suffredini
- Critical Care Medicine Department, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - David B Sacks
- Department of Laboratory Medicine, Clinical Center, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Yi-Kuo Yu
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20894, USA.
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Chen CC, Reddy PM, Devi CS, Chang PC, Ho YP. Study of microwave effects on the lipase-catalyzed hydrolysis. Enzyme Microb Technol 2016; 82:164-172. [DOI: 10.1016/j.enzmictec.2015.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/06/2015] [Accepted: 10/08/2015] [Indexed: 10/22/2022]
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Yoshimura T, Suzuki T, Mineki S, Ohuchi S. Controlled Microwave Heating Accelerates Rolling Circle Amplification. PLoS One 2015; 10:e0136532. [PMID: 26348227 PMCID: PMC4562646 DOI: 10.1371/journal.pone.0136532] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 08/04/2015] [Indexed: 11/19/2022] Open
Abstract
Rolling circle amplification (RCA) generates single-stranded DNAs or RNA, and the diverse applications of this isothermal technique range from the sensitive detection of nucleic acids to analysis of single nucleotide polymorphisms. Microwave chemistry is widely applied to increase reaction rate as well as product yield and purity. The objectives of the present research were to apply microwave heating to RCA and indicate factors that contribute to the microwave selective heating effect. The microwave reaction temperature was strictly controlled using a microwave applicator optimized for enzymatic-scale reactions. Here, we showed that microwave-assisted RCA reactions catalyzed by either of the four thermostable DNA polymerases were accelerated over 4-folds compared with conventional RCA. Furthermore, the temperatures of the individual buffer components were specifically influenced by microwave heating. We concluded that microwave heating accelerated isothermal RCA of DNA because of the differential heating mechanisms of microwaves on the temperatures of reaction components, although the overall reaction temperatures were the same.
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Affiliation(s)
- Takeo Yoshimura
- Department of Applied Biological Science, Tokyo University of Science, 264 Yamazaki, Noda, Chiba 305–8506, Japan
- * E-mail:
| | - Takamasa Suzuki
- Department of Applied Biological Science, Tokyo University of Science, 264 Yamazaki, Noda, Chiba 305–8506, Japan
| | - Shigeru Mineki
- Department of Applied Biological Science, Tokyo University of Science, 264 Yamazaki, Noda, Chiba 305–8506, Japan
| | - Shokichi Ohuchi
- Graduate School of Life Science and System Engineering, Kyushu Institute of Technology, 680–4 Kawazu, Iizuka, Fukuoka 820–8502, Japan
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da Costa JP, Oliveira-Silva R, Daniel-da-Silva AL, Vitorino R. Bionanoconjugation for Proteomics applications — An overview. Biotechnol Adv 2014; 32:952-70. [DOI: 10.1016/j.biotechadv.2014.04.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/15/2014] [Accepted: 04/26/2014] [Indexed: 12/29/2022]
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Ruan G, Wei M, Chen Z, Su R, Du F, Zheng Y. Novel regenerative large-volume immobilized enzyme reactor: Preparation, characterization and application. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 967:13-20. [DOI: 10.1016/j.jchromb.2014.07.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Revised: 05/30/2014] [Accepted: 07/07/2014] [Indexed: 10/25/2022]
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