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Danusso R, Rosati R, Possenti L, Lombardini E, Gigli F, Costantino ML, Ferrazzi E, Casagrande G, Lattuada D. Human umbilical cord blood cells suffer major modification by fixatives and anticoagulants. Front Physiol 2023; 14:1070474. [PMID: 37008002 PMCID: PMC10050555 DOI: 10.3389/fphys.2023.1070474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 02/28/2023] [Indexed: 03/17/2023] Open
Abstract
Introduction: Developing techniques for the tagless isolation of homogeneous cell populations in physiological-like conditions is of great interest in medical research. A particular case is Gravitational Field-Flow Fractionation (GrFFF), which can be run avoiding cell fixation, and that was already used to separate viable cells. Cell dimensions have a key role in this process. However, their dimensions under physiological-like conditions are not easily known since the most diffused measurement techniques are performed on fixed cells, and the fixation used to preserve tissues can alter the cell size. This work aims to obtain and compare cell size data under physiological-like conditions and in the presence of a fixative.Methods: We developed a new protocol that allows the analysis of blood cells in different conditions. Then, we applied it to obtain a dataset of human cord blood cell dimensions from 32 subjects, comparing two tubes with anticoagulants (EDTA and Citrate) and two tubes with different preservatives (CellRescue and CellSave). We analyzed a total of 2071 cells by using confocal microscopy via bio-imaging to assess dimensions (cellular and nuclear) and morphology.Results: Cell diameter measured does not differ when using the different anticoagulants, except for the increase reported for monocyte in the presence of citrate. Instead, cell dimensions differ when comparing anticoagulants and cell preservative tubes, with a few exceptions. Cells characterized by high cytoplasm content show a reduction in their size, while morphology appears always preserved. In a subgroup of cells, 3D reconstruction was performed. Cell and nucleus volumes were estimated using different methods (specific 3D tool or reconstruction from 2D projection).Discussion: We found that some cell types benefit from a complete 3D analysis because they contain non-spherical structures (mainly for cells characterized by poly-lobated nucleus). Overall, we showed the effect of the preservatives mixture on cell dimensions. Such an effect must be considered when dealing with problems highly dependent on cell size, such as GrFFF. Additionally, such information is crucial in computational models increasingly being employed to simulate biological events.
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Affiliation(s)
- Roberta Danusso
- Department of Women-Child-Newborn, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
- Department of Medicine and Surgery, University of Milano-Bicocca, Monza, Italy
| | - Riccardo Rosati
- Department of Women-Child-Newborn, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Luca Possenti
- LaBS, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Milan, Italy
| | - Elena Lombardini
- Department of Women-Child-Newborn, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Francesca Gigli
- Department of Women-Child-Newborn, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Maria Laura Costantino
- LaBS, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Milan, Italy
| | - Enrico Ferrazzi
- Department of Women-Child-Newborn, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
| | - Giustina Casagrande
- Department of Women-Child-Newborn, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
- LaBS, Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Milan, Italy
| | - Debora Lattuada
- Department of Women-Child-Newborn, Foundation IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milano, Italy
- *Correspondence: Debora Lattuada,
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Wang X, Bolan N, Tsang DCW, Sarkar B, Bradney L, Li Y. A review of microplastics aggregation in aquatic environment: Influence factors, analytical methods, and environmental implications. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123496. [PMID: 32717542 DOI: 10.1016/j.jhazmat.2020.123496] [Citation(s) in RCA: 142] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/06/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
A large amount of plastic waste released into natural waters and their demonstrated toxicity have made the transformation of microplastics (MPs; < 5 mm) and nanoplastics (NPs; < 100 nm) an emerging environmental concern. Aggregation is one of the most important environmental behaviors of MPs, especially in aquatic environments, which determines the mobility, distribution and bioavailability of MPs. In this paper, the sources and inputs of MPs in aquatic environments were first summarized followed by the analytical methods for investigating MP aggregation, including the sampling, visualization, and quantification procedures of MP' particle sizes. We critically evaluated the sampling methods that still remains a methodological gap. Identification and quantification of MPs were mostly carried out by visual, spectroscopic and spectrometric techniques, and modeling analysis. Important factors affecting MP aggregation in natural waters and environmental implications of the aggregation process were also reviewed. Finally, recommendations for future research were discussed, including (1) conducting more field studies; (2) using MPs in laboratory works representing those in the environment; and (3) standardizing methods of identification and quantification. The review gives a comprehensive overview of current knowledge for MP aggregation in natural waters, identifies knowledge gaps, and provides suggestions for future research.
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Affiliation(s)
- Xinjie Wang
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China
| | - Nanthi Bolan
- Faculty of Science, University of Newcastle, Callaghan, NSW, Australia
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Binoy Sarkar
- Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, United Kingdom
| | - Lauren Bradney
- Faculty of Science, University of Newcastle, Callaghan, NSW, Australia
| | - Yang Li
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, PR China.
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Kurganov AA, Korolev AA, Viktorova EN. Optimization of Conditions of Polymer Separation by Hydrodynamic Chromatography. POLYMER SCIENCE SERIES A 2020. [DOI: 10.1134/s0965545x20060061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Ou X, Chen P, Huang X, Li S, Liu B. Microfluidic chip electrophoresis for biochemical analysis. J Sep Sci 2019; 43:258-270. [DOI: 10.1002/jssc.201900758] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 01/11/2023]
Affiliation(s)
- Xiaowen Ou
- Hubei Key Laboratory of Purification and Application of Plant Anti‐Cancer Active IngredientsCollege of Chemistry and Life ScienceHubei University of Education Wuhan P. R. China
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics‐Hubei Bioinformatics & Molecular Imaging Key LaboratorySystems Biology ThemeDepartment of Biomedical EngineeringCollege of Life Science and TechnologyHuazhong University of Science and Technology Wuhan P. R. China
| | - Peng Chen
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics‐Hubei Bioinformatics & Molecular Imaging Key LaboratorySystems Biology ThemeDepartment of Biomedical EngineeringCollege of Life Science and TechnologyHuazhong University of Science and Technology Wuhan P. R. China
| | - Xizhi Huang
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics‐Hubei Bioinformatics & Molecular Imaging Key LaboratorySystems Biology ThemeDepartment of Biomedical EngineeringCollege of Life Science and TechnologyHuazhong University of Science and Technology Wuhan P. R. China
| | - Shunji Li
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics‐Hubei Bioinformatics & Molecular Imaging Key LaboratorySystems Biology ThemeDepartment of Biomedical EngineeringCollege of Life Science and TechnologyHuazhong University of Science and Technology Wuhan P. R. China
| | - Bi‐Feng Liu
- The Key Laboratory for Biomedical Photonics of MOE at Wuhan National Laboratory for Optoelectronics‐Hubei Bioinformatics & Molecular Imaging Key LaboratorySystems Biology ThemeDepartment of Biomedical EngineeringCollege of Life Science and TechnologyHuazhong University of Science and Technology Wuhan P. R. China
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Hwang JY, Youn S, Yang IH. Gravitational field flow fractionation: Enhancing the resolution power by using an acoustic force field. Anal Chim Acta 2019; 1047:238-247. [DOI: 10.1016/j.aca.2018.09.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 09/23/2018] [Indexed: 10/28/2022]
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Bartczak D, Davies J, Gollwitzer C, Krumrey M, Goenaga-Infante H. Changes in silica nanoparticles upon internalisation by cells: size, aggregation/agglomeration state, mass- and number-based concentrations. Toxicol Res (Camb) 2018; 7:172-181. [PMID: 30090572 DOI: 10.1039/c7tx00323d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 01/22/2018] [Indexed: 11/21/2022] Open
Abstract
Monitoring the physicochemical characteristics of nanoparticles following internalisation by cells is a vital step in understanding their biological impact and toxicity. Here, the feasibility of a methodology utilising gentle enzymatic lysis of cells containing internalised particles and direct analysis of the lysates for the particle size, agglomeration state and concentration, is investigated. It is demonstrated that following internalisation, all types of studied silica particles partially agglomerate/aggregate, with the degree and rate of the observed transformation closely correlated with the initial particle surface chemistry. Several different particle populations are noted and characterised in terms of their size and concentration. Good agreement between different complementary techniques is reached in terms of the average particle diameter. Particle concentration is determined here with techniques capable of mass and number-based measurements, with limitations of approaches utilising signal conversion to equivalent particle numbers identified and discussed.
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Affiliation(s)
| | - Julie Davies
- LGC Limited , Queens Road , TW11 0LY , Teddington , UK .
| | - Christian Gollwitzer
- Physikalisch-Technische Bundesanstalt , Abbestraße 2-12 , D-10587 Berlin , Germany
| | - Michael Krumrey
- Physikalisch-Technische Bundesanstalt , Abbestraße 2-12 , D-10587 Berlin , Germany
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Lüsebrink D, Cerdà JJ, Sánchez PA, Kantorovich SS, Sintes T. The behavior of a magnetic filament in flow under the influence of an external magnetic field. J Chem Phys 2016; 145:234902. [DOI: 10.1063/1.4971860] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Daniel Lüsebrink
- IFISC (UIB-CSIC) Instituto de Física Interdisciplinar y Sistemas Complejos, Campus UIB, 07122 Palma de Mallorca, Spain
| | - Joan J. Cerdà
- IFISC (UIB-CSIC) Instituto de Física Interdisciplinar y Sistemas Complejos, Campus UIB, 07122 Palma de Mallorca, Spain
| | - Pedro A. Sánchez
- Faculty of Physics, Universität Wien, Boltzmanngasse 5, 1090 Wien, Austria
| | | | - Tomás Sintes
- IFISC (UIB-CSIC) Instituto de Física Interdisciplinar y Sistemas Complejos, Campus UIB, 07122 Palma de Mallorca, Spain
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Salafi T, Zeming KK, Zhang Y. Advancements in microfluidics for nanoparticle separation. LAB ON A CHIP 2016; 17:11-33. [PMID: 27830852 DOI: 10.1039/c6lc01045h] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Nanoparticles have been widely implemented for healthcare and nanoscience industrial applications. Thus, efficient and effective nanoparticle separation methods are essential for advancement in these fields. However, current technologies for separation, such as ultracentrifugation, electrophoresis, filtration, chromatography, and selective precipitation, are not continuous and require multiple preparation steps and a minimum sample volume. Microfluidics has offered a relatively simple, low-cost, and continuous particle separation approach, and has been well-established for micron-sized particle sorting. Here, we review the recent advances in nanoparticle separation using microfluidic devices, focusing on its techniques, its advantages over conventional methods, and its potential applications, as well as foreseeable challenges in the separation of synthetic nanoparticles and biological molecules, especially DNA, proteins, viruses, and exosomes.
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Affiliation(s)
- Thoriq Salafi
- NUS Graduate School for Integrative Sciences and Engineering, Centre for Life Sciences (CeLS), National University of Singapore, 05-01 28 Medical Drive, 117456 Singapore. and Department of Biomedical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #03-12, 117576 Singapore
| | - Kerwin Kwek Zeming
- Department of Biomedical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #03-12, 117576 Singapore
| | - Yong Zhang
- NUS Graduate School for Integrative Sciences and Engineering, Centre for Life Sciences (CeLS), National University of Singapore, 05-01 28 Medical Drive, 117456 Singapore. and Department of Biomedical Engineering, National University of Singapore, 9 Engineering Drive 1, Block EA #03-12, 117576 Singapore
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Janča J. On the effect of thermophoretic force, gravitational force, and particle–particle interactions in field-flow fractionation. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2016. [DOI: 10.1080/1023666x.2016.1244090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Josef Janča
- MicroFrac Laboratory, Maršov, Czech Republic
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Adverse-Mode FFF: Multi-Force Ideal Retention Theory. CHROMATOGRAPHY 2015. [DOI: 10.3390/chromatography2030392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Shendruk T, Slater G. Hydrodynamic chromatography and field flow fractionation in finite aspect ratio channels. J Chromatogr A 2014; 1339:219-23. [DOI: 10.1016/j.chroma.2014.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 02/11/2014] [Accepted: 03/01/2014] [Indexed: 10/25/2022]
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Dou H, Lee YJ, Jung EC, Lee BC, Lee S. Study on steric transition in asymmetrical flow field-flow fractionation and application to characterization of high-energy material. J Chromatogr A 2013; 1304:211-9. [DOI: 10.1016/j.chroma.2013.06.051] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 06/17/2013] [Accepted: 06/19/2013] [Indexed: 12/24/2022]
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Shendruk TN, Tahvildari R, Catafard NM, Andrzejewski L, Gigault C, Todd A, Gagne-Dumais L, Slater GW, Godin M. Field-flow fractionation and hydrodynamic chromatography on a microfluidic chip. Anal Chem 2013; 85:5981-8. [PMID: 23650976 DOI: 10.1021/ac400802g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We present gravitational field-flow fractionation and hydrodynamic chromatography of colloids eluting through 18 μm microchannels. Using video microscopy and mesoscopic simulations, we investigate the average retention ratio of colloids with both a large specific weight and neutral buoyancy. We consider the entire range of colloid sizes, including particles that barely fit in the microchannel and nanoscopic particles. Ideal theory predicts four operational modes, from hydrodynamic chromatography to Faxén-mode field-flow fractionation. We experimentally demonstrate, for the first time, the existence of the Faxén-mode field-flow fractionation and the transition from hydrodynamic chromatography to normal-mode field-flow fractionation. Furthermore, video microscopy and simulations show that the retention ratios are largely reduced above the steric-inversion point, causing the variation of the retention ratio in the steric- and Faxén-mode regimes to be suppressed due to increased drag. We demonstrate that theory can accurately predict retention ratios if hydrodynamic interactions with the microchannel walls (wall drag) are added to the ideal theory. Rather than limiting the applicability, these effects allow the microfluidic channel size to be tuned to ensure high selectivity. Our findings indicate that particle velocimetry methods must account for the wall-induced lag when determining flow rates in highly confining systems.
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Affiliation(s)
- Tyler N Shendruk
- Department of Physics, University of Ottawa, MacDonald Hall, K1N 6N5 Ottawa, Canada
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Can slip walls improve field-flow fractionation or hydrodynamic chromatography? J Chromatogr A 2012; 1256:206-12. [DOI: 10.1016/j.chroma.2012.07.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2012] [Revised: 07/09/2012] [Accepted: 07/09/2012] [Indexed: 12/30/2022]
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