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Huang G, Han Y, Li W, Xue Z, He D, He H. Rapid screening of microalgae by a 96-hole air-flowing device. Bioprocess Biosyst Eng 2022; 45:943-953. [PMID: 35246721 DOI: 10.1007/s00449-022-02714-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/18/2022] [Indexed: 11/29/2022]
Abstract
In this study, a 96-hole air-flowing device (96HAFD) was established for high-throughput screening of three mutant Chlorella strains under air aeration. 96HAFD was first tested for the confirmation of homogeneous air aeration cultivation environment at 1.2 L min-1 for algal screening based on the results of t test (p < 0.05) in the verification of consistency experiment. Then the data of dynamic growth characteristics of three mutant Chlorella strains indicated the good agreement in three screening devices including 96HAFD, flask and tube air-flowing cultivation devices by linear regression analysis between the 96HAFD and tube (R2 = 0.9904), 96HAFD and flask (R2 = 0.9904). At last, the 96HAFD was verified more efficient and reliable in fast screening single algal colony strains when compared with flask and tube air-flowing cultivation devices, because 96HAFD was confirmed have better performances in adaptation to the aeration cultivation circumstance and growing faster in a short period, in addition, 96HAFD had the less percentage of water loss per day (0.11%) than that of flask aeration device (2-3%) and tube aeration device (5-6.5%), which reduced negative effect caused by the water evaporation in the aeration cultivation to make the whole growing system more stable.
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Affiliation(s)
- Guanhua Huang
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, XuZhou, 221116, China.
| | - Yanyan Han
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, XuZhou, 221116, China
| | - Wei Li
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, XuZhou, 221116, China
| | - Zhen Xue
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, XuZhou, 221116, China
| | - Dengling He
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, XuZhou, 221116, China
| | - Huan He
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, XuZhou, 221116, China
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Zhang S, Yang Y, Liu S, Dong R, Qian Z. Influence of the Hypercapnic Tumor Microenvironment on the Viability of Hela Cells Screened by a CO 2-Gradient-Generating Device. ACS OMEGA 2021; 6:26773-26781. [PMID: 34661031 PMCID: PMC8515822 DOI: 10.1021/acsomega.1c04422] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/10/2021] [Indexed: 05/15/2023]
Abstract
Carbon dioxide (CO2) levels outside of the physiological range are frequently encountered in the tumor microenvironment and laparoscopic pneumoperitoneum during clinical cancer therapy. Controversies exist regarding the biological effects of hypercapnia on tumor proliferation and metastasis concerning time frame, CO2 concentration, and cell type. Traditional control of gaseous microenvironments for cell growth is conducted using culture chambers that allow for a single gas concentration at a time. In the present paper, Hela cells were studied for their response to varying levels of CO2 in an aerogel-based gas gradient-generating apparatus capable of delivering a stable and quantitative linear CO2 profile in spatial and temporal domains. Cells cultured in the standard 96-well plate sandwiched in between the device were interfaced with the gas gradient generator, and the cells in each row were exposed to a known level of CO2 accordingly. Both the ratiometric pH indicator and theoretical modeling have confirmed the efficient mass transport of CO2 through the air-permeable aerogel monolith in a short period of time. Tumor cell behaviors in various hypercapnic microenvironments with gradient CO2 concentrations ranging from 12 to 89% were determined in terms of viability, morphology, and mitochondrial metabolism under acute exposure for 3 h and over a longer cultivation period for up to 72 h. A significant reduction in cell viability was noticed with increasing CO2 concentration and incubation time, which was closely associated with intracellular acidification and elevated cellular level of reactive oxygen species. Our modular device demonstrated full adaptability to the standard culture systems and high-throughput instruments, which provide the potential for simultaneously screening the responses of cells under tunable gaseous microenvironments.
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Abdulla Yusuf H, Hossain SMZ, Khamis AA, Radhi HT, Jaafar AS, Fielden PR. A Hybrid Microfluidic Differential Carbonator Approach for Enhancing Microalgae Growth: Inline Monitoring Through Optical Imaging. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2021. [DOI: 10.1007/s13369-021-05353-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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LaPanse AJ, Krishnan A, Posewitz MC. Adaptive Laboratory Evolution for algal strain improvement: methodologies and applications. ALGAL RES 2021. [DOI: 10.1016/j.algal.2020.102122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Ronan P, Kroukamp O, Liss SN, Wolfaardt G. A Novel System for Real-Time, In Situ Monitoring of CO 2 Sequestration in Photoautotrophic Biofilms. Microorganisms 2020; 8:microorganisms8081163. [PMID: 32751859 PMCID: PMC7464137 DOI: 10.3390/microorganisms8081163] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/09/2020] [Accepted: 07/24/2020] [Indexed: 01/26/2023] Open
Abstract
Climate change brought about by anthropogenic CO2 emissions has created a critical need for effective CO2 management solutions. Microalgae are well suited to contribute to efforts aimed at addressing this challenge, given their ability to rapidly sequester CO2 coupled with the commercial value of their biomass. Recently, microalgal biofilms have garnered significant attention over the more conventional suspended algal growth systems, since they allow for easier and cheaper biomass harvesting, among other key benefits. However, the path to cost-effectiveness and scaling up is hindered by a need for new tools and methodologies which can help evaluate, and in turn optimize, algal biofilm growth. Presented here is a novel system which facilitates the real-time in situ monitoring of algal biofilm CO2 sequestration. Utilizing a CO2-permeable membrane and a tube-within-a-tube design, the CO2 sequestration monitoring system (CSMS) was able to reliably detect slight changes in algal biofilm CO2 uptake brought about by light–dark cycling, light intensity shifts, and varying amounts of phototrophic biomass. This work presents an approach to advance our understanding of carbon flux in algal biofilms, and a base for potentially useful innovations to optimize, and eventually realize, algae biofilm-based CO2 sequestration.
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Affiliation(s)
- Patrick Ronan
- Department of Chemistry and Biology, Ryerson University, 350 Victoria St., Toronto, ON M5B 2K3, Canada; (P.R.); (O.K.); (S.N.L.)
| | - Otini Kroukamp
- Department of Chemistry and Biology, Ryerson University, 350 Victoria St., Toronto, ON M5B 2K3, Canada; (P.R.); (O.K.); (S.N.L.)
| | - Steven N. Liss
- Department of Chemistry and Biology, Ryerson University, 350 Victoria St., Toronto, ON M5B 2K3, Canada; (P.R.); (O.K.); (S.N.L.)
- Department of Microbiology, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
| | - Gideon Wolfaardt
- Department of Chemistry and Biology, Ryerson University, 350 Victoria St., Toronto, ON M5B 2K3, Canada; (P.R.); (O.K.); (S.N.L.)
- Department of Microbiology, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa
- Correspondence:
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Liu F, Yazdani M, Ahner BA, Wu M. An array microhabitat device with dual gradients revealed synergistic roles of nitrogen and phosphorous in the growth of microalgae. LAB ON A CHIP 2020; 20:798-805. [PMID: 31971190 DOI: 10.1039/c9lc01153f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Harmful algal blooms (HABs) are an emerging environmental problem contaminating water resources and disrupting the balance of the ecosystems. HABs are caused by the sudden growth of photosynthetic algal cells in both fresh and marine water, and have been expanding in extent and appearing more frequently due to the climate change and population growth. Despite the urgency of the problem, the exact environmental conditions that trigger HABs are unknown. This is in part due to the lack of high throughput tools for screening environmental parameters in promoting the growth of photosynthetic microorganisms. In this article, we developed an array microhabitat device with well defined dual nutrient gradients suitable for quantitative studies of multiple environmental parameters in microalgal cell growth. This device enabled an ability to provide 64 different nutrient conditions [nitrogen (N), phosphorous (P), and N : P ratio] at the same time, and the gradient generation took less than 90 min, advancing the current pond and test tube assays in terms of time and cost. Using a photosynthetic algal cell line, Chlamydomonas reinhardtii, preconditioned in co-limited media, we revealed that N and P synergistically promoted cell growth. Interestingly, no discernible response was observed when single P or N gradient was imposed. Our work demonstrated the enabling capability of the microfluidic platform for screening effects of multiple environmental factors in photosynthetic cell growth, and highlighted the importance of the synergistic roles of environmental factors in algal cell growth.
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Affiliation(s)
- Fangchen Liu
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA.
| | - Mohammad Yazdani
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA.
| | - Beth A Ahner
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA.
| | - Mingming Wu
- Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY, USA.
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Wang JZ, Zhu LL, Zhang F, Herman RA, Li WJ, Zhou XJ, Wu FA, Wang J. Microfluidic tools for lipid production and modification: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:35482-35496. [PMID: 31327140 DOI: 10.1007/s11356-019-05833-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Microfluidics has great potential as an efficient tool for a large range of applications in industry. The ability of such devices to deal with an extremely small amount of fluid has additional benefits, including superlatively fast and efficient mass and heat transfer. These characteristics of microfluidics have attracted an enormous amount of interest in their use as a novel tool for lipid production and modification. In addition, lipid resources have a close relationship with energy resources, and lipids are an alternative renewable energy source. Here, recent advances in the application of microfluidics for lipid production and modification, especially in the discovery, culturing, harvesting, separating, and monitoring of lipid-producing microorganisms, will be reviewed. Other applications of microfluidics, such as the modification of lipids from microorganisms, will also be discussed. The novel microfluidic tools in this review will be useful in applications to improve lipid production and modification in the future.
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Affiliation(s)
- Jin-Zheng Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Lin-Lin Zhu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Fan Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Richard Ansah Herman
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Wen-Jing Li
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Xue-Jiao Zhou
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Fu-An Wu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, People's Republic of China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Zhenjiang, 212018, People's Republic of China
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, Zhenjiang, 212018, People's Republic of China
| | - Jun Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China.
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, People's Republic of China.
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Zhenjiang, 212018, People's Republic of China.
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, Zhenjiang, 212018, People's Republic of China.
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Girault M, Beneyton T, Del Amo Y, Baret JC. Microfluidic technology for plankton research. Curr Opin Biotechnol 2018; 55:134-150. [PMID: 30326407 PMCID: PMC6378650 DOI: 10.1016/j.copbio.2018.09.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 09/19/2018] [Accepted: 09/20/2018] [Indexed: 02/06/2023]
Abstract
Plankton produces numerous chemical compounds used in cosmetics and functional foods. They also play a key role in the carbon budget on the Earth. In a context of global change, it becomes important to understand the physiological response of these microorganisms to changing environmental conditions. Their adaptations and the response to specific environmental conditions are often restricted to a few active cells or individuals in large populations. Using analytical capabilities at the subnanoliter scale, microfluidic technology has also demonstrated a high potential in biological assays. Here, we review recent advances in microfluidic technologies to overcome the current challenges in high content analysis both at population and the single cell level.
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Affiliation(s)
- Mathias Girault
- Centre de Recherche Paul Pascal, Unité Mixte de Recherche 5031, Université de Bordeaux, Centre National de la Recherche Scientifique, 33600 Pessac, France
| | - Thomas Beneyton
- Centre de Recherche Paul Pascal, Unité Mixte de Recherche 5031, Université de Bordeaux, Centre National de la Recherche Scientifique, 33600 Pessac, France
| | - Yolanda Del Amo
- Université de Bordeaux - OASU, UMR CNRS 5805 EPOC (Environnements et Paléoenvironnements Océaniques et Continentaux), Station Marine d'Arcachon, 33120 Arcachon, France
| | - Jean-Christophe Baret
- Centre de Recherche Paul Pascal, Unité Mixte de Recherche 5031, Université de Bordeaux, Centre National de la Recherche Scientifique, 33600 Pessac, France.
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