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Qing LS, Wang TT, Luo HY, Du JL, Wang RY, Luo P. Microfluidic strategies for natural products in drug discovery: Current status and future perspectives. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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2
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A Tesla Valve as a Micromixer for Fe3O4 Nanoparticles. Processes (Basel) 2022. [DOI: 10.3390/pr10081648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A large number of microfluidic applications are based on effective mixing. In the application of water purification, the contaminated water needs to be effectively mixed with a solution that is loaded with nanoparticles. In this work, the Tesla valve was used as a micromixer device in order to evaluate the effect of this type of geometry on the mixing process of two streams. For this reason, several series of simulations were performed in order to achieve an effective mixing of iron oxide nanoparticles and contaminated water in a duct. In the present work, a stream loaded with Fe3O4 nanoparticles and a stream with contaminated water were numerically studied for various inlet velocity ratios and initial concentrations between the two streams. The Navier–Stokes equations were solved for the water flow and the discrete motion of particles was evaluated by the Lagrangian method. Results indicate that the Tesla valve can be used as a micromixer since mixing efficiency reached up to 63% for Vp/Vc = 20 under various inlet nanoparticles rates for the geometry of the valve that was used in this study.
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Yin B, Yue W, Sohan ASMM, Zhou T, Qian C, Wan X. Micromixer with Fine-Tuned Mathematical Spiral Structures. ACS OMEGA 2021; 6:30779-30789. [PMID: 34805706 PMCID: PMC8600618 DOI: 10.1021/acsomega.1c05024] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
Micromixers with the microchannel structure can enable rapid and efficient mixing of multiple types of fluids on a microfluidic chip. Herein, we report the mixing performance of three passive micromixers based on the different mathematical spiral structures. We study the fluid flow characteristics of Archimedes spiral, Fermat spiral, and hyperbolic spiral structures with various channel widths and Reynolds number (Re) ranging from 0 to 10 via numerical simulation and visualization experiments. In addition, we analyze the mechanism of streamlines and Dean vortices at different cross sections during fluid flows. As the fluid flows in the Fermat spiral channel, the centrifugal force induces the Dean vortex to form a chaotic advection, enhancing the fluid mixing performance. By integrating the Fermat spiral channel into a microfluidic chip, we successfully detect acute myocardial infarction (AMI) marker with the double-antibody sandwich method and reduce the detection time to 10 min. This method has a low reagent consumption and a high reaction efficiency and demonstrates great potential in point-of-care testing (POCT).
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Affiliation(s)
- Binfeng Yin
- School
of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China
| | - Wenkai Yue
- School
of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China
| | | | - Teng Zhou
- Mechanical
and Electrical Engineering College, Hainan
University, Haikou 570228, China
| | - Changcheng Qian
- School
of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China
| | - Xinhua Wan
- School
of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China
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Chiu HK, Kartanas T, Saar KL, Luxhøj CM, Devenish S, Knowles TPJ. Rapid highly sensitive general protein quantification through on-chip chemiluminescence. BIOMICROFLUIDICS 2021; 15:024113. [PMID: 33981380 PMCID: PMC8095358 DOI: 10.1063/5.0039872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 03/26/2021] [Indexed: 05/08/2023]
Abstract
Protein detection and quantification is a routinely performed procedure in research laboratories, predominantly executed either by spectroscopy-based measurements, such as NanoDrop, or by colorimetric assays. The detection limits of such assays, however, are limited to μ M concentrations. To establish an approach that achieves general protein detection at an enhanced sensitivity and without necessitating the requirement for signal amplification steps or a multicomponent detection system, here, we established a chemiluminescence-based protein detection assay. Our assay specifically targeted primary amines in proteins, which permitted characterization of any protein sample and, moreover, its latent nature eliminated the requirement for washing steps providing a simple route to implementation. Additionally, the use of a chemiluminescence-based readout ensured that the assay could be operated in an excitation source-free manner, which did not only permit an enhanced sensitivity due to a reduced background signal but also allowed for the use of a very simple optical setup comprising only an objective and a detection element. Using this assay, we demonstrated quantitative protein detection over a concentration range of five orders of magnitude and down to a high sensitivity of 10 pg mL - 1 , corresponding to pM concentrations. The capability of the platform presented here to achieve a high detection sensitivity without the requirement for a multistep operation or a multicomponent optical system sets the basis for a simple yet universal and sensitive protein detection strategy.
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Affiliation(s)
- Hoi Kei Chiu
- Department of Chemistry, University of
Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Tadas Kartanas
- Department of Chemistry, University of
Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Kadi L. Saar
- Department of Chemistry, University of
Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Carina Mouritsen Luxhøj
- Department of Chemistry, University of
Cambridge, Lensfield Road, Cambridge CB2 1EW, United
Kingdom
| | - Sean Devenish
- Fluidic Analytics Ltd., Unit A The Paddocks
Business Centre, Cherry Hinton Road, Cambridge CB1 8DH, United
Kingdom
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Iranifam M, Al Lawati HA. Monitoring the antioxidant capacity in honey and fruit juices using a microfluidic device with a NaHCO3-H2O2-Co2+ chemiluminescence reaction. Food Chem 2019; 297:124930. [DOI: 10.1016/j.foodchem.2019.05.204] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 05/23/2019] [Accepted: 05/30/2019] [Indexed: 11/26/2022]
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6
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Al Lawati HAJ, Al Mughairy B, Al Lawati I, Suliman FO. Enhancing the chemiluminescence intensity of a KMnO4
formaldehyde system for estimating the total phenolic content in honey samples using a novel nanodroplet mixing approach in a microfluidics platform. LUMINESCENCE 2018; 33:863-870. [DOI: 10.1002/bio.3483] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 02/15/2018] [Accepted: 02/22/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Haider A. J. Al Lawati
- Department of Chemistry, College of Science; Sultan Qaboos University; Box 36, Al-Khod 123 Oman
| | - Baqia Al Mughairy
- Department of Chemistry, College of Science; Sultan Qaboos University; Box 36, Al-Khod 123 Oman
| | - Iman Al Lawati
- Department of Chemistry, College of Science; Sultan Qaboos University; Box 36, Al-Khod 123 Oman
| | - FakhrEldin O. Suliman
- Department of Chemistry, College of Science; Sultan Qaboos University; Box 36, Al-Khod 123 Oman
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Chen X, Shen J, Li T. PMMA microreactor for chemiluminescence detection of Cu (II) based on 1,10-Phenanthroline-hydrogen peroxide reaction. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2016; 53:915-9. [PMID: 26788016 PMCID: PMC4711459 DOI: 10.1007/s13197-015-2034-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/07/2015] [Accepted: 09/14/2015] [Indexed: 10/23/2022]
Abstract
A microreactor for the chemiluminescence detection of copper (II) in water samples, based on the measurement of light emitted from the copper (II) catalysed oxidation of 1,10-phenanthroline by hydrogen peroxide in basic aqueous solution, is presented. Polymethyl methacrylate (PMMA) was chose as material for fabricating the microreactor with mill and hot bonding method. Optimized reagents conditions were found to be 6.3 × 10(-5)mol/L 1,10-phenanthroline, 1.5 × 10(-3)mol/L hydrogen peroxide, 7.0 × 10(-2)mol/L sodium hydroxide and 2.4 × 10(-5)mol/L Hexadecyl trimethyl ammonium Bromide (CTMAB). In the continuous flow injection mode the system can perform fully automated detection with a reagent consumption of only 3.5 μL each time. The linear range of the Cu (II) ions concentration was 1.5 × 10(-8) mol/L to 1.0 × 10(-4) mol/L, and the detection limit was 9.4 × 10(-9)mol/L with the S/N ratio of 4. The relative standard deviation was 3.0 % for 2.0 × 10(-6) mol/L Cu (II) ions (n = 10). The most obvious features of the detection method are simplicity, rapidity and easy fabrication of the microreactor.
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Affiliation(s)
- Xueye Chen
- Faculty of Mechanical Engineering and Automation, Liaoning University of technology, Jinzhou, 121001 China
| | - Jienan Shen
- Faculty of Mechanical Engineering and Automation, Liaoning University of technology, Jinzhou, 121001 China
| | - Tiechuan Li
- Faculty of Mechanical Engineering and Automation, Liaoning University of technology, Jinzhou, 121001 China
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Mirasoli M, Guardigli M, Michelini E, Roda A. Recent advancements in chemical luminescence-based lab-on-chip and microfluidic platforms for bioanalysis. J Pharm Biomed Anal 2014; 87:36-52. [DOI: 10.1016/j.jpba.2013.07.008] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 07/08/2013] [Accepted: 07/08/2013] [Indexed: 01/27/2023]
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Lawati HAJA, Dahmani ZMA, Varma GB, Suliman FO. Photoinduced oxidation of a tris(2,2'-bipyridyl)ruthenium(II)-peroxodisulfate chemiluminescence system for the analysis of mebeverine HCl pharmaceutical formulations and biological fluids using a two-chip device. LUMINESCENCE 2013; 29:275-83. [DOI: 10.1002/bio.2540] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 03/30/2013] [Accepted: 05/05/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Haider A. J. Al Lawati
- Department of Chemistry, College of Science; Sultan Qaboos University; Box 36 Al-Khod 123 Oman
| | - Zeiyana M. Al Dahmani
- Department of Chemistry, College of Science; Sultan Qaboos University; Box 36 Al-Khod 123 Oman
| | - Gouri B Varma
- Department of Chemistry, College of Science; Sultan Qaboos University; Box 36 Al-Khod 123 Oman
| | - FakhrEldin O Suliman
- Department of Chemistry, College of Science; Sultan Qaboos University; Box 36 Al-Khod 123 Oman
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Chen X, Chang F, Wei X, Li G. Chemiluminescence detection for Co (II) based on luminol-hydrogen peroxide reaction on a microfluidic chip. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2013. [DOI: 10.1007/s13197-013-1017-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Al Lawati HAJ. Flow-based analysis using microfluidics-chemiluminescence systems. LUMINESCENCE 2012; 28:618-27. [PMID: 22941964 DOI: 10.1002/bio.2418] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 06/17/2012] [Accepted: 07/10/2012] [Indexed: 11/06/2022]
Abstract
This review will discuss various approaches and techniques in which analysis using microfluidics-chemiluminescence systems (MF-CL) has been reported. A variety of applications is examined, including environmental, pharmaceutical, biological, food and herbal analysis. Reported uses of CL reagents, sample introduction techniques, sample pretreatment methods, CL signal enhancement and detection systems are discussed. A hydrodynamic pumping system is predominately used for these applications. However, several reports are available in which electro-osmotic (EO) pumping has been implemented. Various sample pretreatment methods have been used, including liquid-liquid extraction, solid-phase extraction and molecularly imprinted polymers. A wide range of innovative techniques has been reported for CL signal enhancement. Most of these techniques are based on enhancement of the mixing process in the microfluidics channels, which leads to enhancement of the CL signal. However, other techniques are also reported, such as mirror reaction, liquid core waveguide, on-line pre-derivatization and the use of an opaque white chip with a thin transparent seal. Photodetectors are the most commonly used detectors; however, other detection systems have also been used, including integrated electrochemiluminescence (ECL) and organic photodiodes (OPDs).
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Affiliation(s)
- Haider A J Al Lawati
- Department of Chemistry, College of Science, Sultan Qaboos University, Box 36, Al-Khod, 123, Oman
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12
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Lok KS, Abdul Muttalib SZB, Lee PPF, Kwok YC, Nguyen NT. Rapid determination of vitamin B12 concentration with a chemiluminescence lab on a chip. LAB ON A CHIP 2012; 12:2353-2361. [PMID: 22513799 DOI: 10.1039/c2lc00037g] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This paper reports a novel method for the rapid determination of vitamin B(12) concentration in a continuous-flow lab-on-a-chip system. This new method is based on luminol-peroxide chemiluminescence (CL) assays for the detection of cobalt(II) ions in vitamin B(12) molecules. The lab-on-a-chip device consisted of two passive micromixers acting as microreactors and a double spiral microchannel network serving as an optical detection region. This system could operate in two modes. In the first mode, samples are acidified and evaluated directly in the microchip. In the second mode, samples are treated externally by acidification prior to detection in the microchip. In the first mode, the linear range obtained was between 1.00 ng ml(-1) to 10 μg ml(-1), R(2) = 0.996, with a relative standard deviation (RSD) of 1.23 to 2.31% (n = 5) and a limit of detection (lod) of 0.368 pg ml(-1). The minimum sample volume required and the analytical time were 30 μl and 3.6 s, respectively. In the second mode, the linear range obtained was between 0.10 ng ml(-1) to 10 μg ml(-1), R(2) = 0.994, with the RSD of 0.90 to 2.32% (n = 6) and a lod of 0.576 pg ml(-1). The minimum sample and the analytical time required were 50 μl and 6 s, respectively. The lab on a chip working in mode II was successfully used for the determination of vitamin B(12) concentrations in nutritional supplemental tablets and hen egg yolks.
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Affiliation(s)
- Khoi Seng Lok
- National Institute of Education, Nanyang Technological University, Singapore
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Das S, Powe AM, Baker GA, Valle B, El-Zahab B, Sintim HO, Lowry M, Fakayode SO, McCarroll ME, Patonay G, Li M, Strongin RM, Geng ML, Warner IM. Molecular Fluorescence, Phosphorescence, and Chemiluminescence Spectrometry. Anal Chem 2011; 84:597-625. [DOI: 10.1021/ac202904n] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Susmita Das
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Aleeta M. Powe
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, United States
| | - Gary A. Baker
- Department of Chemistry, University of Missouri−Columbia, Columbia, Missouri 65211-7600, United States
| | - Bertha Valle
- Department of Chemistry, Texas Southern University, Houston, Texas 77004, United States
| | - Bilal El-Zahab
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Herman O. Sintim
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Mark Lowry
- Department of Chemistry, Portland State University, Portland, Oregon 97207, United States
| | - Sayo O. Fakayode
- Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, United States
| | - Matthew E. McCarroll
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901-4409, United States
| | - Gabor Patonay
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302-4098, United States
| | - Min Li
- Process Development Center, Albemarle Corporation, Baton Rouge, Louisiana 70805, United States
| | - Robert M. Strongin
- Department of Chemistry, Portland State University, Portland, Oregon 97207, United States
| | - Maxwell L. Geng
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Isiah M. Warner
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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