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PCR enhancers: Types, mechanisms, and applications in long-range PCR. Biochimie 2022; 197:130-143. [DOI: 10.1016/j.biochi.2022.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 02/06/2022] [Accepted: 02/24/2022] [Indexed: 12/21/2022]
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Lo FF, Kow KW, Kung F, Ahamed F, Kiew PL, Yeap SP, Chua HS, Chan CH, Yusoff R, Ho YK. Effect of magnetic field on nano-magnetite composite exhibits in ion-adsorption. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 780:146337. [PMID: 33770606 DOI: 10.1016/j.scitotenv.2021.146337] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
Nano-magnetites are widely researched for its potential as an excellent adsorbent in many applications. However, the efficiency of the nano-magnetites are hindered by their tendency to agglomerate. In this work, we dispersed and embedded the nano-magnetites in a porous silica gel matrix to form a nanocomposite to reduce the extent of agglomeration and to enhance the adsorption performance. Our experimental results showed that the removal efficiency of Cu2+ ion has improved by 46% (22.4 ± 2.2%) on the nano-magnetite-silica-gel (NMSG) nanocomposite as compared to pure nano-magnetites (15.3 ± 0.6%). The adsorption capacity is further enhanced by 39% (from 11.2 ± 1.1 to 15.6 ± 1.6 mg/g) by subjecting the NMSG to a magnetic field prior to adsorption. We infer that the magnetic field aligned the magnetic domains within the nano-magnetites, resulting in an increased Lorentz force during adsorption. Similar alignment of magnetic domains is near to impossible in pure nano-magnetites due to severe agglomeration. We further found that the adsorption capacity of the NMSG can be manipulated with an external magnetic field by varying the strength and the configurations of the field. Equipped with proper process design, our finding has great potentials in processes that involve ion-adsorptions, for example, NMSG can: (i) replace/reduce chemical dosing in controlling adsorption kinetics, (ii) replace/reduce complex chemicals required in ion-chromatography columns, and (iii) reduce wastage of nano-adsorbents by immobilizing it in a porous matrix.
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Affiliation(s)
- Fabian Fosheng Lo
- Department of Chemical and Petroleum Engineering, Faculty of Engineering, Technology & Built Environment, UCSI University, Kuala Lumpur 56000, Malaysia
| | - Kien-Woh Kow
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, The University of Nottingham Ningbo China, Ningbo 315100, China.
| | - Fabian Kung
- Faculty of Engineering, Multimedia University, 63100, Cyberjaya, Selangor, Malaysia
| | - Firnaaz Ahamed
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500, Selangor, Malaysia
| | - Peck-Loo Kiew
- Department of Chemical and Petroleum Engineering, Faculty of Engineering, Technology & Built Environment, UCSI University, Kuala Lumpur 56000, Malaysia
| | - Swee-Pin Yeap
- Department of Chemical and Petroleum Engineering, Faculty of Engineering, Technology & Built Environment, UCSI University, Kuala Lumpur 56000, Malaysia
| | - Huang-Shen Chua
- School of Engineering, University of Wollongong (UOW) Malaysia KDU, Jalan Kontraktor U1/14, Seksyen U1, 14 Glenpark U1, 40150 Shah Alam, Selangor, Malaysia
| | - Chung-Hung Chan
- Advanced Oleochemical Technology Division, Malaysian Palm Oil Board, 43000 Kajang, Selangor, Malaysia
| | - Rozita Yusoff
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50600 Kuala Lumpur, Malaysia
| | - Yong Kuen Ho
- Chemical Engineering Discipline, School of Engineering, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500, Selangor, Malaysia
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Effect of surface functionalisation on the interaction of iron oxide nanoparticles with polymerase chain reaction. Colloids Surf B Biointerfaces 2017; 153:69-76. [DOI: 10.1016/j.colsurfb.2017.02.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 01/27/2017] [Accepted: 02/05/2017] [Indexed: 01/28/2023]
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Kambli P, Kelkar-Mane V. Nanosized Fe3O4 an efficient PCR yield enhancer-Comparative study with Au, Ag nanoparticles. Colloids Surf B Biointerfaces 2016; 141:546-552. [PMID: 26896662 DOI: 10.1016/j.colsurfb.2016.02.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 01/28/2016] [Accepted: 02/09/2016] [Indexed: 12/28/2022]
Abstract
Nanomaterials-assisted PCR is a promising field of nanobiotechnology that amalgamates nanomaterials into the conventional PCR system to achieve better amplification of desired product. With literature documenting the variable effects of these nanomaterials on the PCR yield and amplification; it was thought worthwhile to compare the PCR enhancing efficiency of three transition metal nanoparticles in form of stable colloidal suspensions at varying concentrations.The nanoparticles(NPs) of silver, gold and magnetite were chemically synthesized by reducing their respective salts and characterized using UV-vis spectroscopy. Their morphology was assessed using nanoparticle tracking system and AFM. The effect of these nanofluids on amplification of 800 bp prokaryotic DNA template with 30% GC content was studied using conventional thermal cycler. The reaction kinetics for all the three nanofluids yielded a Gaussian curve of amplification with varying concentrations. The ammonium salt of oleic acid coated magnetite (Fe3O4) nanoparticles at a concentration of 0.72 × 10(-2)nM and average size of 33 nm demonstrated highest amplification efficiency of 190% as compared to the citrate stabilized AgNP-25 nm (45%) and AuNP-15.19 nm (134%) using a conventional PCR system. The major reasons that allow Fe3O4 NPs outperform the other 2 transition metal NP's seem to be attributed to its heat conduction property as well as effective adsorption of PCR components onto the ammonium salt of oleic acid coated magnetite nanofluids. The data from our study offers valuable information for the application of ferrofluids as economically, efficient and effective alternative for nanomaterial-assisted PCR yield enhancers.
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Affiliation(s)
- Priyanka Kambli
- Department of Biotechnology, University of Mumbai, Vidyanagari, Kalina, Santacruz (E), Mumbai-98, India
| | - Varsha Kelkar-Mane
- Department of Biotechnology, University of Mumbai, Vidyanagari, Kalina, Santacruz (E), Mumbai-98, India.
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