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Sabotič J, Bayram E, Ezra D, Gaudêncio SP, Haznedaroğlu BZ, Janež N, Ktari L, Luganini A, Mandalakis M, Safarik I, Simes D, Strode E, Toruńska-Sitarz A, Varamogianni-Mamatsi D, Varese GC, Vasquez MI. A guide to the use of bioassays in exploration of natural resources. Biotechnol Adv 2024; 71:108307. [PMID: 38185432 DOI: 10.1016/j.biotechadv.2024.108307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 12/05/2023] [Accepted: 01/01/2024] [Indexed: 01/09/2024]
Abstract
Bioassays are the main tool to decipher bioactivities from natural resources thus their selection and quality are critical for optimal bioprospecting. They are used both in the early stages of compounds isolation/purification/identification, and in later stages to evaluate their safety and efficacy. In this review, we provide a comprehensive overview of the most common bioassays used in the discovery and development of new bioactive compounds with a focus on marine bioresources. We present a comprehensive list of practical considerations for selecting appropriate bioassays and discuss in detail the bioassays typically used to explore antimicrobial, antibiofilm, cytotoxic, antiviral, antioxidant, and anti-ageing potential. The concept of quality control and bioassay validation are introduced, followed by safety considerations, which are critical to advancing bioactive compounds to a higher stage of development. We conclude by providing an application-oriented view focused on the development of pharmaceuticals, food supplements, and cosmetics, the industrial pipelines where currently known marine natural products hold most potential. We highlight the importance of gaining reliable bioassay results, as these serve as a starting point for application-based development and further testing, as well as for consideration by regulatory authorities.
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Affiliation(s)
- Jerica Sabotič
- Department of Biotechnology, Jožef Stefan Institute, 1000 Ljubljana, Slovenia.
| | - Engin Bayram
- Institute of Environmental Sciences, Bogazici University, Bebek, Istanbul 34342, Turkey
| | - David Ezra
- Department of Plant Pathology and Weed Research, ARO, The Volcani Institute, P.O.Box 15159, Rishon LeZion 7528809, Israel
| | - Susana P Gaudêncio
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, NOVA School of Science and Technology, NOVA University Lisbon, 2819-516 Caparica, Portugal; UCIBIO - Applied Biomolecular Sciences Unit, Department of Chemistry, Blue Biotechnology & Biomedicine Lab, NOVA School of Science and Technology, NOVA University of Lisbon, 2819-516 Caparica, Portugal
| | - Berat Z Haznedaroğlu
- Institute of Environmental Sciences, Bogazici University, Bebek, Istanbul 34342, Turkey
| | - Nika Janež
- Department of Biotechnology, Jožef Stefan Institute, 1000 Ljubljana, Slovenia
| | - Leila Ktari
- B3Aqua Laboratory, National Institute of Marine Sciences and Technologies, Carthage University, Tunis, Tunisia
| | - Anna Luganini
- Department of Life Sciences and Systems Biology, University of Turin, 10123 Turin, Italy
| | - Manolis Mandalakis
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, 71500 Heraklion, Greece
| | - Ivo Safarik
- Department of Nanobiotechnology, Biology Centre, ISBB, CAS, Na Sadkach 7, 370 05 Ceske Budejovice, Czech Republic; Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University, Slechtitelu 27, 783 71 Olomouc, Czech Republic
| | - Dina Simes
- Centre of Marine Sciences (CCMAR), Universidade do Algarve, 8005-139 Faro, Portugal; 2GenoGla Diagnostics, Centre of Marine Sciences (CCMAR), Universidade do Algarve, Faro, Portugal
| | - Evita Strode
- Latvian Institute of Aquatic Ecology, Agency of Daugavpils University, Riga LV-1007, Latvia
| | - Anna Toruńska-Sitarz
- Department of Marine Biology and Biotechnology, Faculty of Oceanography and Geography, University of Gdańsk, 81-378 Gdynia, Poland
| | - Despoina Varamogianni-Mamatsi
- Institute of Marine Biology, Biotechnology and Aquaculture, Hellenic Centre for Marine Research, 71500 Heraklion, Greece
| | | | - Marlen I Vasquez
- Department of Chemical Engineering, Cyprus University of Technology, 3036 Limassol, Cyprus
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2
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Shirani E, Razmjou A, Asadnia M, Nordon RE, Inglis DW. Surface Modification of Polystyrene with Boronic Acid for Immunoaffinity-Based Cell Enrichment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:4361-4372. [PMID: 38357828 DOI: 10.1021/acs.langmuir.3c03644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Obtaining an enriched and phenotypically pure cell population from heterogeneous cell mixtures is important for diagnostics and biosensing. Existing techniques such as fluorescent-activated cell sorting (FACS) and magnetic-activated cell sorting (MACS) require preincubation with antibodies (Ab) and specialized equipment. Cell immunopanning removes the need for preincubation and can be done with no specialized equipment. The majority of the available antibody-mediated analyte capture techniques require a modification to the Abs for binding. In this work, no antibody modification is used because we take advantage of the carbohydrate chain in the Fc region of Ab. We use boronic acid as a cross-linker to bind the Ab to a modified surface. The process allows for functional orientation and cleavable binding of the Ab. In this study, we created an immunoaffinity matrix on polystyrene (PS), an inexpensive and ubiquitous plastic. We observed a 37% increase in Ab binding compared with that of a passive adsorption approach. The method also displayed a more consistent antibody binding with 17 times less variation in Ab loading among replicates than did the passive adsorption approach. Surface topography analysis revealed that a dextran coating reduced nonspecific antibody binding. Elemental analysis (XPS) was used to characterize the surface at different stages and showed that APBA molecules can bind upside-down on the surface. While upside-down antibodies likely remain functional, their elution behavior might differ from those bound in the desired way. Cell capture experiments show that the new surface has 43% better selectivity and 2.4-fold higher capture efficiency compared to a control surface of passively adsorbed Abs. This specific surface chemistry modification will allow the targeted capture of cells or analytes with the option of chemical detachment for further research and characterization.
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Affiliation(s)
- Elham Shirani
- School of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Amir Razmjou
- Mineral Recovery Research Center (MRRC), School of Engineering, Edith Cowan University, Joondalup, Perth, Western Australia 6027, Australia
| | - Mohsen Asadnia
- School of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Robert E Nordon
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - David W Inglis
- School of Engineering, Macquarie University, Sydney, New South Wales 2109, Australia
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3
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Zang Y, Hang N, Sui J, Duan S, Zhao W, Tao J, Li S. Magnetic Persimmon Leaf Composite: Preparation and Application in Magnetic Solid-Phase Extraction of Pesticides in Water Samples. Molecules 2023; 29:45. [PMID: 38202628 PMCID: PMC10780136 DOI: 10.3390/molecules29010045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/15/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
In recent years, the utilization of biomass materials for the removal and detection of water pollutants has garnered considerable attention. This study introduces, for the first time, the preparation of Fe3O4/persimmon leaf magnetic biomass composites. The magnetic composites were employed in a magnetic solid-phase extraction method, coupled with gas chromatography-electron capture detection (GC-ECD), for the analysis of four pesticides (trifluralin, triadimefon, permethrin, and fenvalerate) in environmental water samples. The innovative magnetic persimmon leaf composites were synthesized by in situ generation of Fe3O4 nanoparticles through coprecipitation and loaded onto persimmon leaves. These composites exhibit superparamagnetism with a saturation magnetization of 12.8 emu g-1, facilitating rapid phase separation using a magnetic field and reducing the extraction time to 10 min. Desorption can be achieved within 30 s by aspirating 20 times, eliminating the need for time-consuming and labor-intensive experimental steps like filtration and centrifugation. The specific surface area of the magnetic composite adsorbent increased from 1.3279 m2 g-1 for the original persimmon leaf to 5.4688 m2 g-1. The abundant hydroxyl and carboxyl groups on the composites provide ample adsorption sites, resulting in adsorption capacities ranging from 55.056 mg g-1 to 73.095 mg g-1 for the studied pesticides. The composites exhibited extraction recoveries ranging from 80% to 90% for the studied pesticides. Compared to certain previously reported MSPE methods, this approach achieves equivalent or higher extraction recoveries in a shorter operation time, demonstrating enhanced efficiency and convenience. Good linearity of the target analytes was obtained within the range of 0.75-1500 μg L-1, with a determination of coefficient (R2) greater than 0.999. These findings contribute to the use of magnetic persimmon leaf biomass materials as effective and environmentally friendly adsorbents for pollutant determination in water samples.
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Affiliation(s)
| | | | | | | | | | | | - Songqing Li
- Beijing Key Laboratory for Forest Pest Control, College of Forestry, Beijing Forestry University, No. 35 Qinghua East Road, Beijing 100083, China; (Y.Z.); (N.H.); (J.S.); (S.D.); (W.Z.); (J.T.)
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Arona JC, Hall TJ, Mckinnirey F, Deng F. Comparison of four commercial immunomagnetic separation kits for the detection of Cryptosporidium. JOURNAL OF WATER AND HEALTH 2023; 21:1580-1590. [PMID: 37902211 PMCID: wh_2023_217 DOI: 10.2166/wh.2023.217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Cryptosporidium spp. are protozoan parasites of significant health importance found in environmental waters globally. Four commercially available Cryptosporidium-specific immunomagnetic separation (IMS) kits used in various water sample matrices were analysed and compared. Beads were characterised by flow cytometry and tested for the recovery efficiencies for oocysts spiked into different matrices: river water sediment, clay sample, and filter backwash sample. Results showed that Dynabeads™ Cryptosporidium and Waterborne Crypto-Grab™ kits contained immunoglobulin IgM antibody-coated beads. In contrast, the BioPoint CryptoBead and the TCS Isolate kits contained immunoglobulin IgG antibody-coated beads. BioPoint CryptoBead was significantly coated with more antibodies and were able to capture oocysts more rapidly compared to the other beads. Recovery efficiencies of Dynabeads™, TCS Isolate® beads, and BioPoint CryptoBead ranged from 55 to 93% when tested against different sample matrices, with BioPoint CryptoBead resulting in the highest at 93% in reagent-grade water and Dynabeads™ at 55%, the lowest against clay samples. The Waterborne beads did not perform well on any samples, with recovery efficiencies ranging from 0 to 8%. Fluorescence microscopy analyses showed that both the IMS method and the sample matrix processed affect the quality of the membranes, with the cleanest samples for microscopy examination observed from BioPoint CryptoBead.
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Affiliation(s)
- Jeanne Claudeen Arona
- Graduate School of BioMedical Engineering, University of New South Wales, Sydney 2052, Australia E-mail:
| | - Timothy J Hall
- Graduate School of BioMedical Engineering, University of New South Wales, Sydney 2052, Australia
| | - Flyn Mckinnirey
- Graduate School of BioMedical Engineering, University of New South Wales, Sydney 2052, Australia
| | - Fei Deng
- Graduate School of BioMedical Engineering, University of New South Wales, Sydney 2052, Australia
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More CV, Akman F, Dilsiz K, Ogul H, Pawar PP. Estimation of neutron and gamma-ray attenuation characteristics of some ferrites: Geant4, FLUKA and WinXCom studies. Appl Radiat Isot 2023; 197:110803. [PMID: 37054662 DOI: 10.1016/j.apradiso.2023.110803] [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: 12/17/2022] [Revised: 03/23/2023] [Accepted: 04/06/2023] [Indexed: 04/15/2023]
Abstract
Ferrites are ceramic oxide materials consisting of mainly iron oxide and they have become massively important materials commercially and technologically, having a multitude of uses and applications. The protection against neutron-gamma mixed radiation is crucial in several nuclear applications. From this standpoint, mass attenuation coefficient, radiation protection efficiency and transmission factor of some ferrites namely barium, strontium, manganese, copper and cadmium ferrite has been computed using Geant4 and FLUKA simulations. Based on the simulated mass attenuation coefficient, other significant parameters such as linear attenuation coefficient, effective atomic and electron number, conductivity, half value layer, and mean free path were calculated for the selected ferrite materials. The validation of Monte Carlo geometry has been provided by comparing the mass attenuation coefficient results with standard WinXCom data. Gamma ray exposure buildup factors were computed using geometric progression fitting formula for the chosen ferrites in the energy range 0.015-15 MeV at penetration depths up to 40 mfp. The findings of the present work reveal that among the studied ferrites, barium ferrite and copper ferrite possess superior gamma ray and fast neutron attenuation capability, respectively. The present work provides a comprehensive investigation of the selected iron oxides in the field of neutron and gamma ray.
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Affiliation(s)
- Chaitali V More
- Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, 431004, Maharashtra, India.
| | - Ferdi Akman
- Bingöl University, Vocational School of Social Sciences, Department of Property Protection and Security, Program of Occupational Health and Safety, 12000, Bingöl, Turkey; Bingöl University, Central Laboratory Application and Research Center, 12000, Bingöl, Turkey
| | - Kamuran Dilsiz
- Bingöl University, Faculty of Arts and Sciences, Department of Physics, 12000, Bingöl, Turkey
| | - Hasan Ogul
- Department of Nuclear Engineering, Faculty of Engineering and Architecture, Sinop University, Sinop, Turkey
| | - Pravina P Pawar
- Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, 431004, Maharashtra, India
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Nawaz AA, Soteriou D, Xu CK, Goswami R, Herbig M, Guck J, Girardo S. Image-based cell sorting using focused travelling surface acoustic waves. LAB ON A CHIP 2023; 23:372-387. [PMID: 36620943 PMCID: PMC9844123 DOI: 10.1039/d2lc00636g] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 11/21/2022] [Indexed: 05/27/2023]
Abstract
Sorting cells is an essential primary step in many biological and clinical applications such as high-throughput drug screening, cancer research and cell transplantation. Cell sorting based on their mechanical properties has long been considered as a promising label-free biomarker that could revolutionize the isolation of cells from heterogeneous populations. Recent advances in microfluidic image-based cell analysis combined with subsequent label-free sorting by on-chip actuators demonstrated the possibility of sorting cells based on their physical properties. However, the high purity of sorting is achieved at the expense of a sorting rate that lags behind the analysis throughput. Furthermore, stable and reliable system operation is an important feature in enabling the sorting of small cell fractions from a concentrated heterogeneous population. Here, we present a label-free cell sorting method, based on the use of focused travelling surface acoustic wave (FTSAW) in combination with real-time deformability cytometry (RT-DC). We demonstrate the flexibility and applicability of the method by sorting distinct blood cell types, cell lines and particles based on different physical parameters. Finally, we present a new strategy to sort cells based on their mechanical properties. Our system enables the sorting of up to 400 particles per s. Sorting is therefore possible at high cell concentrations (up to 36 million per ml) while retaining high purity (>92%) for cells with diverse sizes and mechanical properties moving in a highly viscous buffer. Sorting of small cell fraction from a heterogeneous population prepared by processing of small sample volume (10 μl) is also possible and here demonstrated by the 667-fold enrichment of white blood cells (WBCs) from raw diluted whole blood in a continuous 10-hour sorting experiment. The real-time analysis of multiple parameters together with the high sensitivity and high-throughput of our method thus enables new biological and therapeutic applications in the future.
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Affiliation(s)
- Ahmad Ahsan Nawaz
- Max Planck Institute for the Science of Light & Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany.
| | - Despina Soteriou
- Max Planck Institute for the Science of Light & Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany.
| | - Catherine K Xu
- Max Planck Institute for the Science of Light & Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany.
| | - Ruchi Goswami
- Max Planck Institute for the Science of Light & Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany.
| | - Maik Herbig
- Department of Chemistry, University of Tokyo, Tokyo, Japan
| | - Jochen Guck
- Max Planck Institute for the Science of Light & Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany.
| | - Salvatore Girardo
- Max Planck Institute for the Science of Light & Max-Planck-Zentrum für Physik und Medizin, Erlangen, Germany.
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7
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Angga MS, Malla B, Raya S, Kitano A, Xie X, Saitoh H, Ohnishi N, Haramoto E. Development of a magnetic nanoparticle-based method for concentrating SARS-CoV-2 in wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 848:157613. [PMID: 35901898 PMCID: PMC9310541 DOI: 10.1016/j.scitotenv.2022.157613] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/20/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Several virus concentration methods have been developed to increase the detection sensitivity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in wastewater, as part of applying wastewater-based epidemiology. Polyethylene glycol (PEG) precipitation method, a method widely used for concentrating viruses in wastewater, has some limitations, such as long processing time. In this study, Pegcision, a PEG-based method using magnetic nanoparticles (MNPs), was applied to detect SARS-CoV-2 in wastewater, with several modifications to increase its sensitivity and throughput. An enveloped virus surrogate, Pseudomonas phage φ6, and a non-enveloped virus surrogate, coliphage MS2, were seeded into wastewater samples and quantified using reverse transcription-quantitative polymerase chain reaction to assess the recovery performance of the Pegcision. Neither increasing MNP concentration nor reducing the reaction time to 10 min affected the recovery, while adding polyacrylic acid as a polyanion improved the detection sensitivity. The performance of the Pegcision was further compared to that of the PEG precipitation method based on the detection of SARS-CoV-2 and surrogate viruses, including indigenous pepper mild mottle virus (PMMoV), in wastewater samples (n = 27). The Pegcision showed recovery of 14.1 ± 6.3 % and 1.4 ± 1.0 % for φ6 and MS2, respectively, while the PEG precipitation method showed recovery of 20.4 ± 20.2 % and 18.4 ± 21.9 % (n = 27 each). Additionally, comparable PMMoV concentrations were observed between the Pegcision (7.9 ± 0.3 log copies/L) and PEG precipitation methods (8.0 ± 0.2 log copies/L) (P > 0.05) (n = 27). SARS-CoV-2 RNA was successfully detected in 11 (41 %) each of 27 wastewater samples using the Pegcision and PEG precipitation methods. The Pegcision showed comparable performance with the PEG precipitation method for SARS-CoV-2 RNA concentration, suggesting its applicability as a virus concentration method.
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Affiliation(s)
- Made Sandhyana Angga
- Department of Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Bikash Malla
- Interdisciplinary Center for River Basin Environment, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Sunayana Raya
- Department of Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Ayame Kitano
- Yokohama R&D Center, JNC Corporation, 5-1 Okawa, Kanazawa-ku, Yokohama, Kanagawa 236-8605, Japan.
| | - Xiaomao Xie
- Yokohama R&D Center, JNC Corporation, 5-1 Okawa, Kanazawa-ku, Yokohama, Kanagawa 236-8605, Japan.
| | - Hiroshi Saitoh
- Yokohama R&D Center, JNC Corporation, 5-1 Okawa, Kanazawa-ku, Yokohama, Kanagawa 236-8605, Japan.
| | - Noriyuki Ohnishi
- Corporate Research and Development Division, JNC Corporation, 5-1 Goikaigan, Ichihara, Chiba 290-8551, Japan.
| | - Eiji Haramoto
- Interdisciplinary Center for River Basin Environment, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan.
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Xu X, Zhu L, Wang X, Lan X, Chu H, Tian H, Xu W. Sandwich capture ultrasensitive sensor based on biohybrid interface for the detection of Cronobacter sakazakii. Appl Microbiol Biotechnol 2022; 106:4287-4296. [PMID: 35616722 DOI: 10.1007/s00253-022-11978-z] [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: 02/28/2022] [Revised: 05/04/2022] [Accepted: 05/10/2022] [Indexed: 11/29/2022]
Abstract
A simple, rapid and ultrasensitive visual sensing method for the detection of Cronobacter sakazakii (C. sakazakii) based on a biohybrid interface was established. During the entire sensing process, quadruple-cascade amplification showed its superior sensing performance. First, the prepared immunomagnetic beads (IMB) were used to isolate and enrich specific targets from the food matrix. After adding the fusion aptamer, the aptamer sequence specifically recognized the target and formed the immune sandwich structure of antibody-target-fusion aptamer. In addition, the fusion aptamer also included the template sequence of exponential amplification reaction (EXPAR), which contained the antisense sequence of the G-rich sequence. Therefore, a large number of G-rich sequences can be generated after EXPAR can be triggered in the presence of Bst. DNA polymerase, nicking endonuclease, cDNA, and dNTP. They were self-assembled into G-quadruplex structures and then combined with hemin to form G4/hemin DNAzyme, resulting in visible coloration and measuring absorbance at 450 nm for quantitative detection. The assay showed a limit of detection (LOD) of 2 CFU/mL in pure culture and 12 CFU/g in milk powder in optimal conditions. This method provides a promising strategy for rapid and point-of-care testing (POCT) since it does not require DNA extraction, medium culturing, and expensive instrumentation. KEY POINTS: •Single-cell level detection of C. sakazakii with ultrasensitive and rapidness •The fusion aptamer integrated recognition and amplification •Sensing analysis of C. sakazakii based on cascade amplification of biohybrid interface.
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Affiliation(s)
- Xiuyuan Xu
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei, 071001, People's Republic of China
| | - Longjiao Zhu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health (Institute of Nutrition and Health), China Agricultural University, Tianxiu Road 10, Beijing, 100083, People's Republic of China
| | - Xinxin Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei, 071001, People's Republic of China
| | - Xinyue Lan
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health (Institute of Nutrition and Health), China Agricultural University, Tianxiu Road 10, Beijing, 100083, People's Republic of China
| | - Huashuo Chu
- Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), Beijing Laboratory for Food Quality and Safety, College of Food Science & Nutritional Engineering, Beijing, 100083, People's Republic of China
| | - Hongtao Tian
- College of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei, 071001, People's Republic of China.
| | - Wentao Xu
- Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health (Institute of Nutrition and Health), China Agricultural University, Tianxiu Road 10, Beijing, 100083, People's Republic of China. .,Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety) (MOA), Beijing Laboratory for Food Quality and Safety, College of Food Science & Nutritional Engineering, Beijing, 100083, People's Republic of China.
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9
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Guo D, Zhou X, Muhammad N, Huang S, Zhu Y. An overview of poly (amide-amine) dendrimers functionalized chromatographic separation materials. J Chromatogr A 2022; 1669:462960. [PMID: 35305456 DOI: 10.1016/j.chroma.2022.462960] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/05/2022] [Accepted: 03/09/2022] [Indexed: 01/04/2023]
Abstract
Chromatography is one of the most important separation techniques in analytical chemistry. In which, the separation materials are the core for good separation results. Poly (amide-amine) dendrimers with regular three-dimensional structure, abundant terminal groups, controllable molecule chains, and unique cavities appear to have a positive impact on chromatographic separation materials. In the past decades, poly (amide-amine) grafted adsorbents and stationary phases have presented high grafting efficiency, controllable surface structure, good dispersion, and wide practical applications. In this review, the prepared poly (amide-amine) functionalized separation materials and their applications are systematically summarized. Functions, significance, structure-actvity relationships and benefits of poly (amide-amine) dendrimers in the proposed separation materials are discussed in detail. And we hope to provide a useful reference for the future development of chromatographic separation materials and inspire new discoveries in the study of poly (amide-amine) functionalized materials.
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Affiliation(s)
- Dandan Guo
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China; Qian Xuesen Collaborative Research Center for Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, China; Department of Chemistry, Zhejiang University, Hangzhou 310028, China
| | - Xiaoqian Zhou
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China
| | - Nadeem Muhammad
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China; Department of Environmental Engineering, Wuchang University of Technology, Wuhan 430223, China
| | - Shaohua Huang
- Institute of Drug Discovery and Technology, Ningbo University, Ningbo 315211, China; Qian Xuesen Collaborative Research Center for Astrochemistry and Space Life Sciences, Ningbo University, Ningbo 315211, China.
| | - Yan Zhu
- Department of Chemistry, Zhejiang University, Hangzhou 310028, China.
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10
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Modeling of the Particle Build-Up Evolution on a Single-Wire Magnetic Capture from Axial Stream Flow. MAGNETOCHEMISTRY 2022. [DOI: 10.3390/magnetochemistry8020015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The kinetic equation of the accumulation of magnetic particles from axial flow on a magnetized ferromagnetic wire in an external homogeneous magnetic field has been developed in this study. A new differential equation of the evolution of the accumulation radius over time, which considers both the capture and the detachment of the particles in the accumulation profile on the wire, has been formulated. The evolution of the radius of the accumulation profile over time was obtained from both the differential kinetic equation based on population theory and from the stochastic Fokker–Planck equation. In the limit approach (t→∞), it was observed that the expressions of the saturation radius of the accumulation radius on the magnetized wire of the particles obtained from both models were the same. It is emphasized that the obtained results are valid for both the initial and steady-state build-up of the particle capture process. These results were compared with the experimental results from the literature, and it was observed that the theoretical and experimental results were in good agreement. The effects of both capture and detachment events on the accumulation of particles on the magnetized wire were evaluated.
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11
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Herbig M, Tessmer K, Nötzel M, Nawaz AA, Santos-Ferreira T, Borsch O, Gasparini SJ, Guck J, Ader M. Label-free imaging flow cytometry for analysis and sorting of enzymatically dissociated tissues. Sci Rep 2022; 12:963. [PMID: 35046492 PMCID: PMC8770577 DOI: 10.1038/s41598-022-05007-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 01/05/2022] [Indexed: 01/07/2023] Open
Abstract
Biomedical research relies on identification and isolation of specific cell types using molecular biomarkers and sorting methods such as fluorescence or magnetic activated cell sorting. Labelling processes potentially alter the cells’ properties and should be avoided, especially when purifying cells for clinical applications. A promising alternative is the label-free identification of cells based on physical properties. Sorting real-time deformability cytometry (soRT-DC) is a microfluidic technique for label-free analysis and sorting of single cells. In soRT-FDC, bright-field images of cells are analyzed by a deep neural net (DNN) to obtain a sorting decision, but sorting was so far only demonstrated for blood cells which show clear morphological differences and are naturally in suspension. Most cells, however, grow in tissues, requiring dissociation before cell sorting which is associated with challenges including changes in morphology, or presence of aggregates. Here, we introduce methods to improve robustness of analysis and sorting of single cells from nervous tissue and provide DNNs which can distinguish visually similar cells. We employ the DNN for image-based sorting to enrich photoreceptor cells from dissociated retina for transplantation into the mouse eye.
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Affiliation(s)
- Maik Herbig
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany.,Center for Regenerative Therapies Dresden (CRTD), Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Karen Tessmer
- Center for Regenerative Therapies Dresden (CRTD), Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Martin Nötzel
- Biotechnology Center, Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Ahsan Ahmad Nawaz
- Max Planck Institute for the Science of Light & Max-Planck-Zentrum Für Physik Und Medizin, Erlangen, Germany
| | - Tiago Santos-Ferreira
- Center for Regenerative Therapies Dresden (CRTD), Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany.,Roche Innovation Center Basel, F. Hoffman-La Roche Ltd., Basel, Switzerland
| | - Oliver Borsch
- Center for Regenerative Therapies Dresden (CRTD), Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Sylvia J Gasparini
- Center for Regenerative Therapies Dresden (CRTD), Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany
| | - Jochen Guck
- Max Planck Institute for the Science of Light & Max-Planck-Zentrum Für Physik Und Medizin, Erlangen, Germany
| | - Marius Ader
- Center for Regenerative Therapies Dresden (CRTD), Center for Molecular and Cellular Bioengineering, Technische Universität Dresden, Dresden, Germany.
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12
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Ge J, King J, Mandape S, Budowle B. Enhanced mixture interpretation with macrohaplotypes based on long-read DNA sequencing. Int J Legal Med 2021; 135:2189-2198. [PMID: 34378071 DOI: 10.1007/s00414-021-02679-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 07/30/2021] [Indexed: 12/18/2022]
Abstract
Deconvoluting mixture samples is one of the most challenging problems confronting DNA forensic laboratories. Efforts have been made to provide solutions regarding mixture interpretation. The probabilistic interpretation of Short Tandem Repeat (STR) profiles has increased the number of complex mixtures that can be analyzed. A portion of complex mixture profiles, particularly for mixtures with a high number of contributors, are still being deemed uninterpretable. Novel forensic markers, such as Single Nucleotide Variants (SNV) and microhaplotypes, also have been proposed to allow for better mixture interpretation. However, these markers have both a lower discrimination power compared with STRs and are not compatible with CODIS or other national DNA databanks worldwide. The short-read sequencing (SRS) technologies can facilitate mixture interpretation by identifying intra-allelic variations within STRs. Unfortunately, the short size of the amplicons containing STR markers and sequence reads limit the alleles that can be attained per STR. The latest long-read sequencing (LRS) technologies can overcome this limitation in some samples in which larger DNA fragments (including both STRs and SNVs) with definitive phasing are available. Based on the LRS technologies, this study developed a novel CODIS compatible forensic marker, called a macrohaplotype, which combines a CODIS STR and flanking variants to offer extremely high number of haplotypes and hence very high discrimination power per marker. The macrohaplotype will substantially improve mixture interpretation capabilities. Based on publicly accessible data, a panel of 20 macrohaplotypes with sizes of ~ 8 k bp and the maximum high discrimination powers were designed. The statistical evaluation demonstrates that these macrohaplotypes substantially outperform CODIS STRs for mixture interpretation, particularly for mixtures with a high number of contributors, as well as other forensic applications. Based on these results, efforts should be undertaken to build a complete workflow, both wet-lab and bioinformatics, to precisely call the variants and generate the macrohaplotypes based on the LRS technologies.
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Affiliation(s)
- Jianye Ge
- Center for Human Identification, University of North Texas Health Science Center, Fort Worth, TX, USA.
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, TX, USA.
| | - Jonathan King
- Center for Human Identification, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Sammed Mandape
- Center for Human Identification, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - Bruce Budowle
- Center for Human Identification, University of North Texas Health Science Center, Fort Worth, TX, USA
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, TX, USA
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13
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Gao M, Lee SH, Park SH, Ciaramicoli LM, Kwon H, Cho H, Jeong J, Chang Y. Neutrophil‐Selective Fluorescent Probe Development through Metabolism‐Oriented Live‐Cell Distinction. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Min Gao
- Center for Self-assembly and Complexity Institute for Basic Science (IBS) Pohang 37673 Republic of Korea
| | - Sun Hyeok Lee
- School of Interdisciplinary Bioscience and Bioengineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Sang Hyuk Park
- Department of Laboratory Medicine University of Ulsan College of Medicine (UUCM) Ulsan University Hospital Ulsan 44033 Republic of Korea
| | - Larissa Miasiro Ciaramicoli
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Haw‐Young Kwon
- Center for Self-assembly and Complexity Institute for Basic Science (IBS) Pohang 37673 Republic of Korea
| | - Heewon Cho
- School of Interdisciplinary Bioscience and Bioengineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
| | - Joseph Jeong
- Department of Laboratory Medicine University of Ulsan College of Medicine (UUCM) Ulsan University Hospital Ulsan 44033 Republic of Korea
| | - Young‐Tae Chang
- Center for Self-assembly and Complexity Institute for Basic Science (IBS) Pohang 37673 Republic of Korea
- School of Interdisciplinary Bioscience and Bioengineering Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
- Department of Chemistry Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of Korea
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14
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Gao M, Lee SH, Park SH, Ciaramicoli LM, Kwon HY, Cho H, Jeong J, Chang YT. Neutrophil-Selective Fluorescent Probe Development through Metabolism-Oriented Live-Cell Distinction. Angew Chem Int Ed Engl 2021; 60:23743-23749. [PMID: 34415094 DOI: 10.1002/anie.202108536] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/06/2021] [Indexed: 11/07/2022]
Abstract
Human neutrophils are the most abundant leukocytes and have been considered as the first line of defence in the innate immune system. Selective imaging of live neutrophils will facilitate the in situ study of neutrophils in infection or inflammation events as well as clinical diagnosis. However, small-molecule-based probes for the discrimination of live neutrophils among different granulocytes in human blood have yet to be reported. Herein, we report the first fluorescent probe NeutropG for the specific distinction and imaging of active neutrophils. The selective staining mechanism of NeutropG is elucidated as metabolism-oriented live-cell distinction (MOLD) through lipid droplet biogenesis with the help of ACSL and DGAT. Finally, NeutropG is applied to accurately quantify neutrophil levels in fresh blood samples by showing a high correlation with the current clinical method.
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Affiliation(s)
- Min Gao
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea
| | - Sun Hyeok Lee
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Sang Hyuk Park
- Department of Laboratory Medicine, University of Ulsan College of Medicine (UUCM), Ulsan University Hospital, Ulsan, 44033, Republic of Korea
| | - Larissa Miasiro Ciaramicoli
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Haw-Young Kwon
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea
| | - Heewon Cho
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Joseph Jeong
- Department of Laboratory Medicine, University of Ulsan College of Medicine (UUCM), Ulsan University Hospital, Ulsan, 44033, Republic of Korea
| | - Young-Tae Chang
- Center for Self-assembly and Complexity, Institute for Basic Science (IBS), Pohang, 37673, Republic of Korea.,School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.,Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
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15
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Krämer M, Kissmann AK, Raber HF, Xing H, Favella P, Müller I, Spellerberg B, Weil T, Kubiczek D, Sihler S, Ziener U, Rosenau F. BSA Hydrogel Beads Functionalized with a Specific Aptamer Library for Capturing Pseudomonas aeruginosa in Serum and Blood. Int J Mol Sci 2021; 22:ijms222011118. [PMID: 34681780 PMCID: PMC8537436 DOI: 10.3390/ijms222011118] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/05/2021] [Accepted: 10/11/2021] [Indexed: 12/19/2022] Open
Abstract
Systemic blood stream infections are a major threat to human health and are dramatically increasing worldwide. Pseudomonas aeruginosa is a WHO-alerted multi-resistant pathogen of extreme importance as a cause of sepsis. Septicemia patients have significantly increased survival chances if sepsis is diagnosed in the early stages. Affinity materials can not only represent attractive tools for specific diagnostics of pathogens in the blood but can prospectively also serve as the technical foundation of therapeutic filtration devices. Based on the recently developed aptamers directed against P. aeruginosa, we here present aptamer-functionalized beads for specific binding of this pathogen in blood samples. These aptamer capture beads (ACBs) are manufactured by crosslinking bovine serum albumin (BSA) in an emulsion and subsequent functionalization with the amino-modified aptamers on the bead surface using the thiol- and amino-reactive bispecific crosslinker PEG4-SPDP. Specific and quantitative binding of P. aeruginosa as the dedicated target of the ACBs was demonstrated in serum and blood. These initial but promising results may open new routes for the development of ACBs as a platform technology for fast and reliable diagnosis of bloodstream infections and, in the long term, blood filtration techniques in the fight against sepsis.
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Affiliation(s)
- Markus Krämer
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (M.K.); (A.-K.K.); (H.F.R.); (H.X.); (D.K.)
| | - Ann-Kathrin Kissmann
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (M.K.); (A.-K.K.); (H.F.R.); (H.X.); (D.K.)
| | - Heinz Fabian Raber
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (M.K.); (A.-K.K.); (H.F.R.); (H.X.); (D.K.)
| | - Hu Xing
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (M.K.); (A.-K.K.); (H.F.R.); (H.X.); (D.K.)
| | - Patrizia Favella
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, 72488 Sigmaringen, Germany; (P.F.); (I.M.)
| | - Ingrid Müller
- Department of Life Sciences, Albstadt-Sigmaringen University of Applied Sciences, 72488 Sigmaringen, Germany; (P.F.); (I.M.)
| | - Barbara Spellerberg
- Institute for Medical Microbiology and Hygiene, University Hospital Ulm, 89081 Ulm, Germany;
| | - Tanja Weil
- Department Synthesis of Macromolecules, Max-Planck-Institute of Polymer Science, 55128 Mainz, Germany;
| | - Dennis Kubiczek
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (M.K.); (A.-K.K.); (H.F.R.); (H.X.); (D.K.)
| | - Susanne Sihler
- Institute of Organic Chemistry III-Macromolecular Chemistry and Organic Materials, Ulm University, 89081 Ulm, Germany; (S.S.); (U.Z.)
| | - Ulrich Ziener
- Institute of Organic Chemistry III-Macromolecular Chemistry and Organic Materials, Ulm University, 89081 Ulm, Germany; (S.S.); (U.Z.)
| | - Frank Rosenau
- Institute of Pharmaceutical Biotechnology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany; (M.K.); (A.-K.K.); (H.F.R.); (H.X.); (D.K.)
- Department Synthesis of Macromolecules, Max-Planck-Institute of Polymer Science, 55128 Mainz, Germany;
- Correspondence:
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16
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Li Z, Zu X, Du Z, Hu Z. Research on magnetic bead motion characteristics based on magnetic beads preset technology. Sci Rep 2021; 11:19995. [PMID: 34620919 PMCID: PMC8497522 DOI: 10.1038/s41598-021-99331-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 09/23/2021] [Indexed: 02/04/2023] Open
Abstract
In order to improve the detection efficiency and accuracy of microfluidic chip, a magnetic beads preset technology were designed by using double permanent magnets as external magnetic field and the motion characteristics of preset magnetic beads were studied. The control principle of magnetic beads preset technology was introduced in detail, and the control structure was designed. The coupled field characteristics for magnetic beads in microchannels were analyzed, and the motion models of magnetic beads were established based on the magnetic beads preset technology, including capture motion and mixing motion. The relationship between the magnetic field force and the flow velocity for capturing magnetic bead, and the mixing time under the influence of flow field and magnetic field were derived. The magnetic beads preset technology effect was verified by experiments and numerical simulations were developed to analyze the influence of aspect ratio of permanent magnet on magnetic field. The study showed that the accuracy and efficiency of the magnetic bead control in the microchannel could be better realized by the magnetic beads preset technology. The derivation of the magnetic bead motion model can understand the motion characteristics of the magnetic bead more clearly, facilitate accurate control of the magnetic bead, and improve the success rate of the microfluidic detection.
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Affiliation(s)
- Zhao Li
- Department of Packaging Engineering, Henan University of Science and Technology, Luoyang, Henan, China.
| | - Xiangyang Zu
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, Henan, China
| | - Zhe Du
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, Henan, China
| | - Zhigang Hu
- School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang, Henan, China
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17
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Ozunlu S, Akdogan NG, Bozkurt MN, Doganturk L, Alshammari HA, Le Roy D, Akdogan O. Innovative technique for patterning Nd-Fe-B arrays and development of a microfluidic device with high trapping efficiency. NANOTECHNOLOGY 2021; 32:495501. [PMID: 34399411 DOI: 10.1088/1361-6528/ac1dd6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 08/16/2021] [Indexed: 06/13/2023]
Abstract
Trapping/separating bio-entities via magnetic field gradients created a vast number of possibilities to develop biosensors for the early detection of diseases without the need for expensive equipment or physician/lab technicians. Thus, opening a window for at-home disposable rapid test kits. In the scope of the current work, an innovative and cost-effective technique to form well-organized arrays of Nd-Fe-B patterns was successfully developed. High aspect ratio Nd-Fe-B flakes were synthesized by surfactant-assisted ball milling technique. Nd-Fe-B flakes were distributed and patterned into a PDMS matrix by the aforementioned technique. A microfluidic channel was integrated on the fabricated Nd-Fe-B/PDMS patch with a high magnetic field gradient to form a microfluidic device. Fe nanoparticles, suspended in hexane, were flowed through the microfluidic channel, and trapping of the magnetic nanoparticles was observed. More experiments would be needed to quantitatively study efficiency. Ergo, the microfluidic device with high trapping efficiency was developed. The established technique has the potential to outperform the precedents in trapping efficiency, cost, and ease of production. The developed device could be integrated into disposable test kits for the early detection of various diseases.
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Affiliation(s)
- S Ozunlu
- Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul, Turkey
| | - N G Akdogan
- Faculty of Engineering, Piri Reis University, Istanbul, Turkey
| | - M N Bozkurt
- Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul, Turkey
| | - L Doganturk
- Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul, Turkey
| | - H A Alshammari
- Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul, Turkey
| | - D Le Roy
- Univ Lyon, Université Claude Bernard Lyon 1, CNRS, Institut Lumière Matière, Campus LyonTech - La Doua, F-69622, Lyon, France
| | - O Akdogan
- Faculty of Engineering and Natural Sciences, Bahçeşehir University, Istanbul, Turkey
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18
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Eivazzadeh-Keihan R, Bahreinizad H, Amiri Z, Aliabadi HAM, Salimi-Bani M, Nakisa A, Davoodi F, Tahmasebi B, Ahmadpour F, Radinekiyan F, Maleki A, Hamblin MR, Mahdavi M, Madanchi H. Functionalized magnetic nanoparticles for the separation and purification of proteins and peptides. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116291] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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19
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Sheridan E, Vercellino S, Cursi L, Adumeau L, Behan JA, Dawson KA. Understanding intracellular nanoparticle trafficking fates through spatiotemporally resolved magnetic nanoparticle recovery. NANOSCALE ADVANCES 2021; 3:2397-2410. [PMID: 36134166 PMCID: PMC9419038 DOI: 10.1039/d0na01035a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/21/2021] [Indexed: 05/08/2023]
Abstract
The field of nanomedicine has the potential to be a game-changer in global health, with possible applications in prevention, diagnostics, and therapeutics. However, despite extensive research focus and funding, the forecasted explosion of novel nanomedicines is yet to materialize. We believe that clinical translation is ultimately hampered by a lack of understanding of how nanoparticles really interact with biological systems. When placed in a biological environment, nanoparticles adsorb a biomolecular layer that defines their biological identity. The challenge for bionanoscience is therefore to understand the evolution of the interactions of the nanoparticle-biomolecules complex as the nanoparticle is trafficked through the intracellular environment. However, to progress on this route, scientists face major challenges associated with isolation of specific intracellular compartments for analysis, complicated by the diversity of trafficking events happening simultaneously and the lack of synchronization between individual events. In this perspective article, we reflect on how magnetic nanoparticles can help to tackle some of these challenges as part of an overall workflow and act as a useful platform to investigate the bionano interactions within the cell that contribute to this nanoscale decision making. We discuss both established and emerging techniques for the magnetic extraction of nanoparticles and how they can potentially be used as tools to study the intracellular journey of nanomaterials inside the cell, and their potential to probe nanoscale decision-making events. We outline the inherent limitations of these techniques when investigating particular bio-nano interactions along with proposed strategies to improve both specificity and resolution. We conclude by describing how the integration of magnetic nanoparticle recovery with sophisticated analysis at the single-particle level could be applied to resolve key questions for this field in the future.
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Affiliation(s)
- Emily Sheridan
- Centre for BioNano Interactions, School of Chemistry, University College Dublin Belfield Dublin 4 Ireland
| | - Silvia Vercellino
- Centre for BioNano Interactions, School of Chemistry, University College Dublin Belfield Dublin 4 Ireland
- UCD Conway Institute of Biomolecular and Biomedical Research, School of Biomolecular and Biomedical Science, University College Dublin Belfield Dublin 4 Ireland
| | - Lorenzo Cursi
- Centre for BioNano Interactions, School of Chemistry, University College Dublin Belfield Dublin 4 Ireland
| | - Laurent Adumeau
- Centre for BioNano Interactions, School of Chemistry, University College Dublin Belfield Dublin 4 Ireland
| | - James A Behan
- Centre for BioNano Interactions, School of Chemistry, University College Dublin Belfield Dublin 4 Ireland
| | - Kenneth A Dawson
- Centre for BioNano Interactions, School of Chemistry, University College Dublin Belfield Dublin 4 Ireland
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20
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Ernst E, Wolfe P, Stahura C, Edwards KA. Technical considerations to development of serological tests for SARS-CoV-2. Talanta 2020; 224:121883. [PMID: 33379092 PMCID: PMC7654332 DOI: 10.1016/j.talanta.2020.121883] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 11/06/2020] [Accepted: 11/07/2020] [Indexed: 12/21/2022]
Abstract
The COVID-19 pandemic has had a devastating impact worldwide and has brought clinical assays both for acute diagnosis and prior exposure determination to the forefront. Serological testing intended for point-of-care or laboratory use can be used to determine more accurate individual and population assessments of prior exposure to SARS-CoV-2; improve our understanding of the degree to which immunity is conveyed to subsequent exposures; and quantify immune response to future vaccines. In response to this pandemic, initially more than 90 companies deployed serology assays to the U.S. market, many of which made overstated claims for their accuracy, regulatory approval status, and utility for intended purpose. The U.S. Food and Drug Administration subsequently instituted an Emergency Use Authorization (EUA) procedure requiring that manufacturers submit validation data, but allowing newly developed serological tests to be marketed without the usual approval process during this crisis. Although this rapid deployment was intended to benefit public health, the incomplete understanding of immune response to the virus and lack of assay vetting resulted in quality issues with some of these tests, and thus many were withdrawn after submission. Common assay platforms include lateral flow assays which can serve an important niche of low cost, rapid turnaround, and increased accessibility whereas established laboratory-based platforms based on ELISAs and chemiluminescence expand existing technologies to SARS-CoV-2 and can provide throughput and quantification capabilities. While most of the currently EUA assays rely on these well-established platforms, despite their apparent technical simplicity, there are numerous practical challenges both for manufacturers in developing and for end-users in running and interpreting such assays. Within are discussed technical challenges to serology development for SARS-CoV-2, with an emphasis on lateral flow assay technology.
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Affiliation(s)
- Emilie Ernst
- Department of Pharmaceutical Sciences School of Pharmacy and Pharmaceutical Sciences Binghamton University, Johnson City, NY, 13790, USA.
| | - Patricia Wolfe
- Department of Pharmaceutical Sciences School of Pharmacy and Pharmaceutical Sciences Binghamton University, Johnson City, NY, 13790, USA.
| | - Corrine Stahura
- Department of Pharmaceutical Sciences School of Pharmacy and Pharmaceutical Sciences Binghamton University, Johnson City, NY, 13790, USA.
| | - Katie A Edwards
- Department of Pharmaceutical Sciences School of Pharmacy and Pharmaceutical Sciences Binghamton University, Johnson City, NY, 13790, USA.
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21
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22
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Klingbeil F, Block F, Sajjad U, Holländer RB, Deshpande S, McCord J. Evaluating and forecasting movement patterns of magnetically driven microbeads in complex geometries. Sci Rep 2020; 10:8761. [PMID: 32472020 PMCID: PMC7260204 DOI: 10.1038/s41598-020-65380-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 05/04/2020] [Indexed: 02/06/2023] Open
Abstract
The manipulation of superparamagnetic microbeads for lab-on-a-chip applications relies on the steering of microbeads across an altering stray field landscape on top of soft magnetic parent structures. Using ab initio principles, we show three-dimensional simulations forecasting the controlled movement of microbeads. Simulated aspects of microbead behaviour include the looping and lifting of microbeads around a magnetic circular structure, the flexible bead movement along symmetrically distributed triangular structures, and the dragging of magnetic beads across an array of exchange biased magnetic microstripes. The unidirectional motion of microbeads across a string of oval elements is predicted by simulations and validated experimentally. Each of the simulations matches the experimental results, proving the robustness and accuracy of the applied numerical method. The computer experiments provide details on the particle motion not accessible by experiments. The simulation capabilities prove to be an essential part for the estimation of future lab-on-chip designs.
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Affiliation(s)
- Finn Klingbeil
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143, Kiel, Germany
| | - Findan Block
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143, Kiel, Germany
| | - Umer Sajjad
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143, Kiel, Germany
| | - Rasmus B Holländer
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143, Kiel, Germany
| | - Sughosh Deshpande
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143, Kiel, Germany
| | - Jeffrey McCord
- Institute for Materials Science, Kiel University, Kaiserstraße 2, D-24143, Kiel, Germany.
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23
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Experimentally verified physical model of ferromagnetic microparticles separation in magnetic gradient inside a set of steel spheres. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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24
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Mirhashemi A, Ghorbani Y, Sadighi S. Synthesis and evaluation of Fe3O4–Al2O3/SDS–DMG adsorbent for extraction and preconcentration of Pd(II) from real samples. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01912-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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25
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Unni M, Zhang J, George TJ, Segal MS, Fan ZH, Rinaldi C. Engineering magnetic nanoparticles and their integration with microfluidics for cell isolation. J Colloid Interface Sci 2020; 564:204-215. [PMID: 31911225 PMCID: PMC7023483 DOI: 10.1016/j.jcis.2019.12.092] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 01/09/2023]
Abstract
Isolation of cancer cells, bacteria, and viruses from peripheral blood has important applications in cancer diagnosis, therapy monitoring, and drug development. Magnetic particles functionalized with antibodies that target receptors of cancer cells have been shown to isolate such entities using magnetic field gradients. Here, we report enhancement in capture efficiency and specificity by engineering magnetic nanoparticles and integrating them with microfluidics for the enumeration of tumor cells. Nanoparticles were made from iron oxide, coated with poly(ethylene glycol), and conjugated through avidin-biotin chemistry with antibody specifically against epithelial cell adhesion molecule (EpCAM). On exposure of targeted nanoparticles to tumor cells, specific uptake by EpCAM-expressing tumor cells (e.g., BxPC3, a pancreatic cancer cell) was observed, whereas there was negligible uptake by cells with low EpCAM expression (e.g., CCRF-CEM, a leukemia cell). Using an arrangement of magnets called a Halbach array, capture efficiency and specificity towards BxPC3 cells tagged with magnetic nanoparticles were enhanced, compared to conditions without the magnetic field gradient and/or without magnetic nanoparticles, either in buffer or in whole blood. These results illustrate that engineered magnetic nanoparticles and their integration with microfluidics have great potential for tumor cell enumeration and cancer prognosis.
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Affiliation(s)
- Mythreyi Unni
- Department of Chemical Engineering, Gainesville, FL 32611, USA
| | - Jinling Zhang
- Interdisciplinary Microsystems Group, Department of Mechanical and Aerospace Engineering, Gainesville, FL 32611, USA
| | - Thomas J George
- Department of Medicine, Gainesville, FL 32611, USA; University of Florida Health Cancer Center, Gainesville, FL 32611, USA
| | - Mark S Segal
- Department of Medicine, Gainesville, FL 32611, USA
| | - Z Hugh Fan
- Interdisciplinary Microsystems Group, Department of Mechanical and Aerospace Engineering, Gainesville, FL 32611, USA; J. Crayton Pruitt Family Department of Biomedical Engineering, Gainesville, FL 32611, USA; Department of Chemistry, University of Florida, Gainesville, FL 32611, USA; University of Florida Health Cancer Center, Gainesville, FL 32611, USA.
| | - Carlos Rinaldi
- Department of Chemical Engineering, Gainesville, FL 32611, USA; J. Crayton Pruitt Family Department of Biomedical Engineering, Gainesville, FL 32611, USA; University of Florida Health Cancer Center, Gainesville, FL 32611, USA.
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26
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Shamloo A, Besanjideh M. Investigation of a Novel Microfluidic Device for Label-Free Ferrohydrodynamic Cell Separation on a Rotating Disk. IEEE Trans Biomed Eng 2020; 67:372-378. [DOI: 10.1109/tbme.2019.2913670] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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27
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Wang TF, Lo HF, Chi MC, Lai KL, Lin MG, Lin LL. Affinity Immobilization of a Bacterial Prolidase onto Metal-Ion-Chelated Magnetic Nanoparticles for the Hydrolysis of Organophosphorus Compounds. Int J Mol Sci 2019; 20:E3625. [PMID: 31344929 PMCID: PMC6696040 DOI: 10.3390/ijms20153625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 07/10/2019] [Accepted: 07/22/2019] [Indexed: 12/23/2022] Open
Abstract
In this study, silica-coated magnetic nanoparticles (SiMNPs) with isocyanatopropyltriethoxysilane as a metal-chelating ligand were prepared for the immobilization of His6-tagged Escherichia coli prolidase (His6-EcPepQ). Under one-hour coupling, the enzyme-loading capacity for the Ni2+-functionalized SiMNPs (NiNTASiMNPs) was 1.5 mg/mg support, corresponding to about 58.6% recovery of the initial activity. Native and enzyme-bound NiNTASiMNPs were subsequently characterized by transmission electron microscopy (TEM), superparamagnetic analysis, X-ray diffraction, and Fourier transform infrared (FTIR) spectroscopy. As compared to free enzyme, His6-EcPepQ@NiNTASiMNPs had significantly higher activity at 70 °C and pH ranges of 5.5 to 10, and exhibited a greater stability during a storage period of 60 days and could be recycled 20 times with approximately 80% retention of the initial activity. The immobilized enzyme was further applied in the hydrolysis of two different organophosphorus compounds, dimethyl p-nitrophenyl phosphate (methyl paraoxon) and diethyl p-nitrophenyl phosphate (ethyl paraoxon). The experimental results showed that methyl paraoxon was a preferred substrate for His6-EcPepQ and the kinetic behavior of free and immobilized enzymes towards this substance was obviously different. Taken together, the immobilization strategy surely provides an efficient means to deposit active enzymes onto NiNTASiMNPs for His6-EcPepQ-mediated biocatalysis.
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Affiliation(s)
- Tzu-Fan Wang
- Department of Applied Chemistry, National Chiayi University, 300 Syuefu Road, Chiayi City 60004, Taiwan
| | - Huei-Fen Lo
- Department of Food Science and Technology, Hungkuang University, 1018 Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan.
| | - Meng-Chun Chi
- Department of Applied Chemistry, National Chiayi University, 300 Syuefu Road, Chiayi City 60004, Taiwan
| | - Kuan-Ling Lai
- Department of Applied Chemistry, National Chiayi University, 300 Syuefu Road, Chiayi City 60004, Taiwan
- Department of Food Science and Technology, Hungkuang University, 1018 Taiwan Boulevard, Shalu District, Taichung City 43302, Taiwan
| | - Min-Guan Lin
- Institute of Molecular Biology, Academia Sinica, Nangang District, Taipei City 11529, Taiwan
| | - Long-Liu Lin
- Department of Applied Chemistry, National Chiayi University, 300 Syuefu Road, Chiayi City 60004, Taiwan.
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28
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Edwards KA, Randall EA, Tu-Maung N, Sannino DR, Feder S, Angert ER, Kraft CE. Periplasmic binding protein-based magnetic isolation and detection of thiamine in complex biological matrices. Talanta 2019; 205:120168. [PMID: 31450459 DOI: 10.1016/j.talanta.2019.120168] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/19/2019] [Accepted: 07/21/2019] [Indexed: 11/19/2022]
Abstract
Deficiencies in thiamine (vitamin B1) cause a host of neurological and reproductive impairments yielding morbidity and mortality across environmental and clinical realms. In a technique analogous to immunomagnetic separation, we introduce the use of thiamine periplasmic binding protein (TBP)-conjugated magnetic beads to isolate thiamine from complex matrices. TBP expressed in Escherichia coli is highly specific to thiamine and provides an alternative to antibodies for this non-immunogenic target. After incubation with the sample and removal of unbound matrix constituents, thiamine is simultaneously released and converted to its fluorescent oxidation product thiochrome by alkaline potassium ferricyanide. Subsequent measurement of fluorescence at thiochrome-specific wavelengths provides a second layer of specificity for the detection of thiamine. Thiamine could be quantified at concentrations as low as 5 nM ranging up to 240 nM. Within, we apply this technique to selectively capture and quantify thiamine in complex salmonid fish egg and tissue matrices. Our results showed no measurable non-specific binding to the beads by endogenous fluorophores in the fish egg matrix. Thiamine levels as low as 0.2 nmol/g of fish egg can be detected using this approach, which is sufficient to assess deficiencies causing morbidity and mortality in fish that occur at 1.0 nmol/g of egg. This practical method may find application in other resource limited settings for clinical, food, or dietary supplement analyses.
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Affiliation(s)
- Katie A Edwards
- Department of Natural Resources, Fernow Hall, Cornell University, Ithaca, NY, 14853, USA; Department of Microbiology, Wing Hall, Cornell University, Ithaca, NY, 14853, USA; Department of Pharmaceutical Sciences, PO Box 6000, Binghamton University, Binghamton, NY, 13902, USA.
| | - Eileen A Randall
- Department of Natural Resources, Fernow Hall, Cornell University, Ithaca, NY, 14853, USA
| | - Nicole Tu-Maung
- Department of Natural Resources, Fernow Hall, Cornell University, Ithaca, NY, 14853, USA
| | - David R Sannino
- Department of Microbiology, Wing Hall, Cornell University, Ithaca, NY, 14853, USA
| | - Seth Feder
- Department of Natural Resources, Fernow Hall, Cornell University, Ithaca, NY, 14853, USA
| | - Esther R Angert
- Department of Microbiology, Wing Hall, Cornell University, Ithaca, NY, 14853, USA
| | - Clifford E Kraft
- Department of Natural Resources, Fernow Hall, Cornell University, Ithaca, NY, 14853, USA
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29
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Ebeler M, Pilgram F, Wellhöfer T, Frankenfeld K, Franzreb M. First comprehensive view on a magnetic separation based protein purification processes: From process development to cleaning validation of a GMP-ready magnetic separator. Eng Life Sci 2019; 19:591-601. [PMID: 32625035 DOI: 10.1002/elsc.201800183] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 04/09/2019] [Accepted: 07/01/2019] [Indexed: 11/06/2022] Open
Abstract
Magnetic separation processes are known as integrated bioanalytical protein purification method since decades and are well described. However, use of magnetic separation processes in a regulated industrial production environment has been prevented by the lack of suitable process equipment and prejudice against the productivity of the process and its qualification for cleaning-in-place operation. With the aim of overcoming this prejudice, a comprehensive process development approach is presented, based on a GMP-compliant magnetic separator, including an optimization of the batch adsorption process, implementation into a technical-scale, and the development and validation of cleaning routines for the device. By the implementation of a two-step counter-current binding process, it was possible to raise the yields of the magnetic separation process even for very low concentrated targets in a vast surplus of competing proteins, like the hormone equine chorionic gonadotropin in serum, from 74% to over 95%. For the validation of the cleaning process, a direct surface swabbing method combined with a total organic carbon analysis was established for the determination of two model contaminants. The cleanability of the process equipment was proven for both model contaminants by reliably meeting the 10 ppm criteria.
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Affiliation(s)
- Moritz Ebeler
- Institute of Functional Interfaces Karlsruhe Institute of Technology Eggenstein-Leopoldshafen Germany
| | - Florian Pilgram
- Institute of Functional Interfaces Karlsruhe Institute of Technology Eggenstein-Leopoldshafen Germany
| | - Thomas Wellhöfer
- fzmb GmbH, Forschungszentrum für Medizintechnik und Biotechnologie Bad Langensalza Germany
| | - Katrin Frankenfeld
- fzmb GmbH, Forschungszentrum für Medizintechnik und Biotechnologie Bad Langensalza Germany
| | - Matthias Franzreb
- Institute of Functional Interfaces Karlsruhe Institute of Technology Eggenstein-Leopoldshafen Germany
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30
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Karimi Ghezeli Z, Hekmati M, Veisi H. Synthesis of Imatinib-loaded chitosan-modified magnetic nanoparticles as an anti-cancer agent for pH responsive targeted drug delivery. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4833] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Zahra Karimi Ghezeli
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences; Islamic Azad University; Tehran Iran
| | - Malak Hekmati
- Department of Organic Chemistry, Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences; Islamic Azad University; Tehran Iran
| | - Hojat Veisi
- Department of Chemistry; Payame Noor University; Tehran Iran
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31
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Zhou Y, Ramasamy RP. Isolation and separation of Listeria monocytogenes using bacteriophage P100-modified magnetic particles. Colloids Surf B Biointerfaces 2019; 175:421-427. [PMID: 30562716 DOI: 10.1016/j.colsurfb.2018.12.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 11/30/2018] [Accepted: 12/05/2018] [Indexed: 12/14/2022]
Abstract
A bacteriophage-assisted magnetic separation method was developed for the isolation of Listeria monocytogenes from complex food matrices. The aim of this study is to understand the effect of phage immobilization methods and the magnetic particle sizes on the phage coupling and infectivity retention of the magnetic particles. In this study, bacteriophage P100-modified magnetic particles (PMMPs) were developed for the separation of L. monocytogenes from food matrices. Three sizes of magnetic particles (MP) (150 nm, 500 nm, and 1 μm) were used for phage immobilization via chemical and physical methods. The coupling ratio of phage was investigated, and the performance of each PMMP complex was evaluated by their L. monocytogenes capture efficiency. When compared to the chemical immobilization method, the physically immobilized PMMP complex achieved a higher capture efficiency initially, with excellent selectivity towards target bacteria. The PMMPs were further tested for selective isolation of L. monocytogenes using real food samples such as ground beef and whole milk.
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Affiliation(s)
- Yan Zhou
- Nano Electrochemistry Laboratory, School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens, Georgia 30602, USA; Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | - Ramaraja P Ramasamy
- Nano Electrochemistry Laboratory, School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens, Georgia 30602, USA; Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA.
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32
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Brechmann NA, Eriksson PO, Eriksson K, Oscarsson S, Buijs J, Shokri A, Hjälm G, Chotteau V. Pilot-scale process for magnetic bead purification of antibodies directly from non-clarified CHO cell culture. Biotechnol Prog 2019; 35:e2775. [PMID: 30629859 PMCID: PMC6617771 DOI: 10.1002/btpr.2775] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/31/2018] [Accepted: 12/31/2018] [Indexed: 11/20/2022]
Abstract
High capacity magnetic protein A agarose beads, LOABeads PrtA, were used in the development of a new process for affinity purification of monoclonal antibodies (mAbs) from non‐clarified CHO cell broth using a pilot‐scale magnetic separator. The LOABeads had a maximum binding capacity of 65 mg/mL and an adsorption capacity of 25–42 mg IgG/mL bead in suspension for an IgG concentration of 1 to 8 g/L. Pilot‐scale separation was initially tested in a mAb capture step from 26 L clarified harvest. Small‐scale experiments showed that similar mAb adsorptions were obtained in cell broth containing 40 × 106 cells/mL as in clarified supernatant. Two pilot‐scale purification runs were then performed on non‐clarified cell broth from fed‐batch runs of 16 L, where a rapid mAb adsorption ≥96.6% was observed after 1 h. This process using 1 L of magnetic beads had an overall mAb yield of 86% and 16 times concentration factor. After this single protein A capture step, the mAb purity was similar to the one obtained by column chromatography, while the host cell protein content was very low, <10 ppm. Our results showed that this magnetic bead mAb purification process, using a dedicated pilot‐scale separation device, was a highly efficient single step, which directly connected the culture to the downstream process without cell clarification. Purification of mAb directly from non‐clarified cell broth without cell separation can provide significant savings in terms of resources, operation time, and equipment, compared to legacy procedure of cell separation followed by column chromatography step. © 2019 American Institute of Chemical Engineers Biotechnol. Prog., 35: e2775, 2019.
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Affiliation(s)
- Nils A Brechmann
- AdBIOPRO, VINNOVA Competence Centre for Advanced BioProduction by Continuous Processing, Stockholm, Sweden.,Cell Technology Group (CETEG), Dept. of Industrial Biotechnology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Inst. of Technology, Stockholm, Sweden
| | | | - Kristofer Eriksson
- AdBIOPRO, VINNOVA Competence Centre for Advanced BioProduction by Continuous Processing, Stockholm, Sweden.,Lab-on-a-Bead AB, Uppsala, Sweden
| | - Sven Oscarsson
- Dept. of Organic Chemistry, Stockholm University, Stockholm, Sweden
| | - Jos Buijs
- Dept. of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Atefeh Shokri
- AdBIOPRO, VINNOVA Competence Centre for Advanced BioProduction by Continuous Processing, Stockholm, Sweden.,Cell Technology Group (CETEG), Dept. of Industrial Biotechnology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Inst. of Technology, Stockholm, Sweden
| | - Göran Hjälm
- AdBIOPRO, VINNOVA Competence Centre for Advanced BioProduction by Continuous Processing, Stockholm, Sweden.,Lab-on-a-Bead AB, Uppsala, Sweden
| | - Véronique Chotteau
- AdBIOPRO, VINNOVA Competence Centre for Advanced BioProduction by Continuous Processing, Stockholm, Sweden.,Cell Technology Group (CETEG), Dept. of Industrial Biotechnology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Inst. of Technology, Stockholm, Sweden
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33
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Fahmy SA, Alawak M, Brüßler J, Bakowsky U, El Sayed MMH. Nanoenabled Bioseparations: Current Developments and Future Prospects. BIOMED RESEARCH INTERNATIONAL 2019; 2019:4983291. [PMID: 30834268 PMCID: PMC6374799 DOI: 10.1155/2019/4983291] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 01/13/2019] [Indexed: 12/21/2022]
Abstract
The use of nanomaterials in bioseparations has been recently introduced to overcome the drawbacks of the conventional methods. Different forms of nanomaterials, particularly magnetic nanoparticles (MNPs), carbon nanotubes (CNTs), casted nanoporous membranes, and electrospun nanofiber membranes were utilized in biological separation for the aim of production of different biomolecules such as proteins, amino acids, nucleic acids, and enzymes. This paper critically reviews the state-of-the-art efforts undertaken in this regard, with emphasis on the synthesis and performance evaluation of each nanoform. Challenges and future prospects in developing nanoenabled bioseparations are also discussed, for the purpose of highlighting potential advances in the synthesis and fabrication of novel nanomaterials as well as in the design of efficient nanoenabled processes for separating a wide spectrum of biomolecules.
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Affiliation(s)
- Sherif Ashraf Fahmy
- Department of Chemistry, American University in Cairo (AUC), AUC Avenue, P.O. Box 74, New Cairo 11835, Egypt
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
| | - Mohamad Alawak
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
| | - Jana Brüßler
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
| | - Mayyada M. H. El Sayed
- Department of Chemistry, American University in Cairo (AUC), AUC Avenue, P.O. Box 74, New Cairo 11835, Egypt
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34
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Davis KA, Wu PJ, Cahall CF, Li C, Gottipati A, Berron BJ. Coatings on mammalian cells: interfacing cells with their environment. J Biol Eng 2019; 13:5. [PMID: 30675178 PMCID: PMC6337841 DOI: 10.1186/s13036-018-0131-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 12/09/2018] [Indexed: 12/18/2022] Open
Abstract
The research community is intent on harnessing increasingly complex biological building blocks. At present, cells represent a highly functional component for integration into higher order systems. In this review, we discuss the current application space for cellular coating technologies and emphasize the relationship between the target application and coating design. We also discuss how the cell and the coating interact in common analytical techniques, and where caution must be exercised in the interpretation of results. Finally, we look ahead at emerging application areas that are ideal for innovation in cellular coatings. In all, cellular coatings leverage the machinery unique to specific cell types, and the opportunities derived from these hybrid assemblies have yet to be fully realized.
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Affiliation(s)
- Kara A. Davis
- Chemical and Materials Engineering, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046 USA
| | - Pei-Jung Wu
- Chemical and Materials Engineering, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046 USA
| | - Calvin F. Cahall
- Chemical and Materials Engineering, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046 USA
| | - Cong Li
- Chemical and Materials Engineering, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046 USA
| | - Anuhya Gottipati
- Chemical and Materials Engineering, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046 USA
| | - Brad J. Berron
- Chemical and Materials Engineering, University of Kentucky, 177 FPAT, Lexington, KY 40506-0046 USA
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35
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Sarma MK, Quadir MGA, Bhaduri R, Kaushik S, Goswami P. Composite polymer coated magnetic nanoparticles based anode enhances dye degradation and power production in microbial fuel cells. Biosens Bioelectron 2018; 119:94-102. [DOI: 10.1016/j.bios.2018.07.065] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/24/2018] [Accepted: 07/30/2018] [Indexed: 12/25/2022]
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36
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Gonçalves AI, Miranda MS, Rodrigues MT, Reis RL, Gomes ME. Magnetic responsive cell-based strategies for diagnostics and therapeutics. Biomed Mater 2018; 13:054001. [DOI: 10.1088/1748-605x/aac78b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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37
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Urbaniak M, Holzinger D, Ehresmann A, Stobiecki F. Magnetophoretic lensing by concentric topographic cylinders of perpendicular magnetic anisotropy multilayers. BIOMICROFLUIDICS 2018; 12:044117. [PMID: 30174776 PMCID: PMC6102120 DOI: 10.1063/1.5034516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 08/08/2018] [Indexed: 06/08/2023]
Abstract
Colloidal magnetophoretic lensing of water suspended micrometer-sized superparamagnetic beads (SPBs) above a topographically patterned magnetic thin film system with perpendicular magnetic anisotropy is demonstrated. The magnetic pattern consisting of concentric annuli of micron-sized widths has been superimposed with a rotating external magnetic field, and it is shown that the trajectories of the SPBs above this structure are similar to light rays in an optical focusing lens. SPB trajectories converge towards the central region and have divergent trajectories while passing the center. The experimental findings are corroborated by a quantitative model for the SPB trajectories. The magnetophoretic lensing effect leads to a high SPB concentration in the center of the pattern and may be useful for applications where SPBs have to approach each other in a controlled way.
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Affiliation(s)
- Maciej Urbaniak
- Institute of Molecular Physics, Polish Academy of Sciences, ul. M. Smoluchowskiego 17, 60-179 Poznań, Poland
| | - Dennis Holzinger
- Department of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, D-34132 Kassel, Germany
| | - Arno Ehresmann
- Department of Physics and Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), University of Kassel, Heinrich-Plett-Str. 40, D-34132 Kassel, Germany
| | - Feliks Stobiecki
- Institute of Molecular Physics, Polish Academy of Sciences, ul. M. Smoluchowskiego 17, 60-179 Poznań, Poland
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38
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Tao R, Wang S, Zhang J, Zhang J, Yang Z, Sheng X, Hou Y, Zhang S, Li C. Separation/extraction, detection, and interpretation of DNA mixtures in forensic science (review). Int J Legal Med 2018; 132:1247-1261. [PMID: 29802461 DOI: 10.1007/s00414-018-1862-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 05/11/2018] [Indexed: 02/08/2023]
Abstract
Interpreting mixed DNA samples containing material from multiple contributors has long been considered a major challenge in forensic casework, especially when encountering low-template DNA (LT-DNA) or high-order mixtures that may involve missing alleles (dropout) and unrelated alleles (drop-in), among others. In the last decades, extraordinary progress has been made in the analysis of mixed DNA samples, which has led to increasing attention to this research field. The advent of new methods for the separation and extraction of DNA from mixtures, novel or jointly applied genetic markers for detection and reliable interpretation approaches for estimating the weight of evidence, as well as the powerful massively parallel sequencing (MPS) technology, has greatly extended the range of mixed samples that can be correctly analyzed. Here, we summarized the investigative approaches and progress in the field of forensic DNA mixture analysis, hoping to provide some assistance to forensic practitioners and to promote further development involving this issue.
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Affiliation(s)
- Ruiyang Tao
- Institute of Forensic Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, People's Republic of China.,Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Ministry of Justice, Academy of Forensic Sciences, Shanghai, 200063, People's Republic of China
| | - Shouyu Wang
- Institute of Forensic Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Jiashuo Zhang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Ministry of Justice, Academy of Forensic Sciences, Shanghai, 200063, People's Republic of China.,Department of Forensic Science, Medical School of Soochow University, Suzhou, 215123, People's Republic of China
| | - Jingyi Zhang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Ministry of Justice, Academy of Forensic Sciences, Shanghai, 200063, People's Republic of China.,Department of Forensic Science, Medical School of Soochow University, Suzhou, 215123, People's Republic of China
| | - Zihao Yang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Ministry of Justice, Academy of Forensic Sciences, Shanghai, 200063, People's Republic of China.,Department of Forensic Medicine, School of Basic Medical Science, Wenzhou Medical University, Wenzhou, 325035, People's Republic of China
| | - Xiang Sheng
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Ministry of Justice, Academy of Forensic Sciences, Shanghai, 200063, People's Republic of China.,Department of Forensic Science, Medical School of Soochow University, Suzhou, 215123, People's Republic of China
| | - Yiping Hou
- Institute of Forensic Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Suhua Zhang
- Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Ministry of Justice, Academy of Forensic Sciences, Shanghai, 200063, People's Republic of China.
| | - Chengtao Li
- Institute of Forensic Medicine, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, 610041, People's Republic of China. .,Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Ministry of Justice, Academy of Forensic Sciences, Shanghai, 200063, People's Republic of China.
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39
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Munaz A, Shiddiky MJA, Nguyen NT. Recent advances and current challenges in magnetophoresis based micro magnetofluidics. BIOMICROFLUIDICS 2018; 12:031501. [PMID: 29983837 PMCID: PMC6013300 DOI: 10.1063/1.5035388] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 06/11/2018] [Indexed: 05/12/2023]
Abstract
The combination of magnetism and microscale fluid flow has opened up a new era for handling and manipulation of samples in microfluidics. In particular, magnetophoresis, the migration of particles in a magnetic field, is extremely attractive for microfluidic handling due to its contactless nature, independence of ionic concentration, and lack of induced heating. The present paper focuses on recent advances and current challenges of magnetophoresis and highlights the key parameters affecting the manipulation of particles by magnetophoresis. The magnetic field is discussed according to their relative motion to the sample as stationary and dynamic fields. The migration of particles is categorized as positive and negative magnetophoresis. The applications of magnetophoresis are discussed according to the basic manipulation tasks such as mixing, separation, and trapping of particles or cells. Finally, the paper highlights the limitations of current approaches and provides the future perspective for this research area.
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Affiliation(s)
- Ahmed Munaz
- Queensland Micro- and Nanotechnology Centre, Griffith University, Brisbane, QLD 4111, Australia
| | | | - Nam-Trung Nguyen
- Queensland Micro- and Nanotechnology Centre, Griffith University, Brisbane, QLD 4111, Australia
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Song M, Xiao Z, Xue Y, Zhang X, Ding S, Li J. Development of an indirect competitive ELISA based on immunomagnetic beads’ clean-up for detection of maduramicin in three chicken tissues. FOOD AGR IMMUNOL 2018. [DOI: 10.1080/09540105.2017.1418842] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Affiliation(s)
- Meirong Song
- National Reference Laboratory for Veterinary Drug Residues, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Zhiming Xiao
- Institute of Quality Standard and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, People’s Republic of China
| | - Yanan Xue
- National Reference Laboratory for Veterinary Drug Residues, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Xiya Zhang
- National Reference Laboratory for Veterinary Drug Residues, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Shuangyang Ding
- National Reference Laboratory for Veterinary Drug Residues, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
| | - Jiancheng Li
- National Reference Laboratory for Veterinary Drug Residues, College of Veterinary Medicine, China Agricultural University, Beijing, People’s Republic of China
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Lee AHF, Gessert SF, Chen Y, Sergeev NV, Haghiri B. Preparation of iron oxide silica particles for Zika viral RNA extraction. Heliyon 2018; 4:e00572. [PMID: 29556569 PMCID: PMC5854921 DOI: 10.1016/j.heliyon.2018.e00572] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 12/05/2017] [Accepted: 03/08/2018] [Indexed: 12/19/2022] Open
Abstract
In this work, a robust synthetic pathway for magnetic core preparation and silica surface coating of magnetic microparticles is presented. Silica-coated magnetic particles are widely used to extract DNA and RNA from various biological samples. We present a novel route for the synthesis of iron oxide silica particles (Fe3O4@Silica) and demonstrate their performance for extracting ZIKA viral RNA from serum. The iron (II, III) oxide (Fe3O4), magnetite core is first prepared by ammonia neutralization of ferrous and ferric chloride aqueous solution under argon, followed by the addition of citrate salt to stabilize the surface of the resultant magnetic nanospheres. After this one-pot, two-step synthesis, the magnetic nanospheres are consumed during silica coating by hydrolysis of tetraethoxysilane (TEOS) under alkaline condition. The final product is a sphere-like magnetic aggregate with a size range of 1–2 micron. By simply suspending the magnetic aggregates in guanidinium chloride solution, the silica surface can be prepared for RNA binding. The RNA extraction efficiency was evaluated by extracting ZIKA viral RNA from serum followed by a PCR-based assay. The data indicate excellent recovery of target RNA and removal of PCR inhibitors. This manufacturing procedure for the silica coated microparticles provides a low-cost, effective and ready for scale-up method whose performance is equivalent to commercial alternatives such as magnetic silica surface particles for DNA and RNA sample preparations. The cost of the clinical assays could be largely decreased due to the 100 fold reduction in cost by replacing the commercially available magnetic particles with the developed material for RNA extraction.
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Affiliation(s)
- Alex H F Lee
- Theranos Inc., 7333 Gateway Blvd, Newark, CA 94560, USA
| | | | - Yutao Chen
- Theranos Inc., 7333 Gateway Blvd, Newark, CA 94560, USA
| | | | - Babak Haghiri
- Theranos Inc., 7333 Gateway Blvd, Newark, CA 94560, USA
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Bhattacharjee J, Das B, Mishra A, Sahay P, Upadhyay P. Monocytes isolated by positive and negative magnetic sorting techniques show different molecular characteristics and immunophenotypic behaviour. F1000Res 2017; 6:2045. [PMID: 29636897 DOI: 10.12688/f1000research.12802.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/27/2017] [Indexed: 12/16/2022] Open
Abstract
Background: Magnetic sorting of cells, based on microbead conjugated antibodies (Abs), employs positive as well as negative immunomagnetic separation methods, for isolation of a specific cell population. These microbeads are suggested to be nontoxic, biodegradable carriers conjugated to various antibodies. Isolation of cells through positive selection involves the attachment of antibody conjugated microbeads to the cells of interest, followed by their isolation in the presence of a strong magnetic field to obtain higher purity. Negative selection involves attachment of microbead conjugated antibodies to all other cell populations except the cells of interest, which remain untagged. In the present study, we compared the two methods for their effect on functional and immunophenotypic behavior of isolated CD14+ monocytes. Methods: Peripheral blood mononuclear cells (PBMCs) were isolated from blood collected from healthy volunteers by density gradient centrifugation. Human blood derived monocytes were isolated through positive selection and negative selection, making use of the appropriate monocyte isolation kit. Monocytes were then stimulated with lipopolysaccharide (LPS) and their activation and proliferation capacity were examined. The degradation or dissociation of cell-bound microbeads was also investigated. Results: We observed an impaired LPS sensitivity as well as poor activation and proliferation capacity upon stimulation by LPS in positively sorted CD14+ monocytes as compared to negatively sorted CD14+ monocytes. The attached microbeads did not degrade and remained attached to the cells even after 6 days of culture. Conclusions: Our results suggest that positively sorted CD14+ cells exhibit hampered functionality and may result in inaccurate analysis and observations in downstream applications. However, these cells can be used for immediate analytical procedures.
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Affiliation(s)
- Jashdeep Bhattacharjee
- Division of Gastroenterology, Hepatology and Nutrition, Children's Hospital Los Angeles, Los Angeles, CA, USA.,National Institute of Immunology, New Delhi , India
| | - Barun Das
- National Institute of Immunology, New Delhi , India
| | | | - Preeti Sahay
- National Institute of Immunology, New Delhi , India
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Kamaruzaman S, Sanagi MM, Yahaya N, Wan Ibrahim WA, Endud S, Wan Ibrahim WN. Magnetic micro-solid-phase extraction based on magnetite-MCM-41 with gas chromatography-mass spectrometry for the determination of antidepressant drugs in biological fluids. J Sep Sci 2017; 40:4222-4233. [DOI: 10.1002/jssc.201700549] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 08/10/2017] [Accepted: 08/16/2017] [Indexed: 01/28/2023]
Affiliation(s)
- Sazlinda Kamaruzaman
- Department of Chemistry; Faculty of Science; Universiti Putra Malaysia; Serdang Selangor Malaysia
| | - Mohd Marsin Sanagi
- Department of Chemistry; Faculty of Science; Universiti Teknologi Malaysia; Johor Bahru Johor Malaysia
| | - Noorfatimah Yahaya
- Integrative Medicine Cluster; Advanced Medical and Dental Institute (AMDI); Universiti Sains Malaysia; Kepala Batas Penang Malaysia
| | - Wan Aini Wan Ibrahim
- Department of Chemistry; Faculty of Science; Universiti Teknologi Malaysia; Johor Bahru Johor Malaysia
| | - Salasiah Endud
- Department of Chemistry; Faculty of Science; Universiti Teknologi Malaysia; Johor Bahru Johor Malaysia
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Srbova J, Krulisova P, Holubova L, Pereiro I, Bendali A, Hamiot A, Podzemna V, Macak J, Dupuy B, Descroix S, Viovy JL, Bilkova Z. Advanced immunocapture of milk-borne Salmonella
by microfluidic magnetically stabilized fluidized bed. Electrophoresis 2017; 39:526-533. [DOI: 10.1002/elps.201700257] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 08/25/2017] [Accepted: 08/25/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Jana Srbova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
| | - Pavla Krulisova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
| | - Lucie Holubova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
| | - Iago Pereiro
- Macromolecules and Microsystems in Biology and Medicine; Institute Curie; Paris France
- Sorbonne Universités; UPMC Univ Paris 06; Paris France
- Institut Pierre-Gilles de Gennes; Paris France
| | - Amel Bendali
- Macromolecules and Microsystems in Biology and Medicine; Institute Curie; Paris France
- Sorbonne Universités; UPMC Univ Paris 06; Paris France
- Institut Pierre-Gilles de Gennes; Paris France
| | - Audrey Hamiot
- Laboratory of Pathogenesis of Bacterial Anaerobes, Department of Microbiology; Institut Pasteur; Paris France
| | - Veronika Podzemna
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
| | - Jan Macak
- Center of Materials and Nanotechnologies, Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
| | - Bruno Dupuy
- Laboratory of Pathogenesis of Bacterial Anaerobes, Department of Microbiology; Institut Pasteur; Paris France
- University Paris Diderot; Paris France
| | - Stephanie Descroix
- Macromolecules and Microsystems in Biology and Medicine; Institute Curie; Paris France
- Sorbonne Universités; UPMC Univ Paris 06; Paris France
- Institut Pierre-Gilles de Gennes; Paris France
| | - Jean-Louis Viovy
- Macromolecules and Microsystems in Biology and Medicine; Institute Curie; Paris France
- Sorbonne Universités; UPMC Univ Paris 06; Paris France
- Institut Pierre-Gilles de Gennes; Paris France
| | - Zuzana Bilkova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology; University of Pardubice; Pardubice Czech Republic
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Pham XH, Baek A, Kim TH, Lee SH, Rho WY, Chung WJ, Kim DE, Jun BH. Graphene Oxide Conjugated Magnetic Beads for RNA Extraction. Chem Asian J 2017; 12:1883-1888. [PMID: 28508435 DOI: 10.1002/asia.201700554] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Revised: 05/08/2017] [Indexed: 02/01/2023]
Abstract
A magnetic material that consists of silica-coated magnetic beads conjugated with graphene oxide (GO) was successfully prepared for facile ribonucleic acid (RNA) extraction. When the GO-modified magnetic beads were applied to separate the RNA from the lysed cell, the cellular RNAs were readily adsorbed to and readily desorbed from the surface of the GO-modified magnetic beads by urea. The amount of RNA extracted by the GO-modified magnetic beads was ≈170 % as much as those of the control extracted by a conventional phenol-based chaotropic solution. These results demonstrate that the facile method of RNA separation by using GO-modified magnetic beads as an adsorbent is an efficient and simple way to purify intact cellular RNAs and/or microRNA from cell lysates.
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Affiliation(s)
- Xuan-Hung Pham
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Ahruem Baek
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Tae Han Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Sang Hun Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul, 151-744, Republic of Korea
| | - Won-Yeop Rho
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Woo-Jae Chung
- Department of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon, 440-746, Republic of Korea
| | - Dong-Eun Kim
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University, Seoul, 143-701, Republic of Korea
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46
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Kimura T, Nakamura N, Umeda K, Hashimoto Y, Kishida A. Capture and release of cells using a temperature-responsive surface that immobilizes an antibody through DNA duplex formation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:1172-1182. [PMID: 28322120 DOI: 10.1080/09205063.2017.1309124] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
We synthesized a temperature-responsive surface that immobilized an antibody via DNA duplex formation for selective capture and release of target cells. Polyethylene films were modified by grafting poly(N-isopropylacrylamide-co-acrylic acid) (P(NIPAAm-co-AAc)), which were prepared at various ratios of NIPAAm/AAc. The increased hydrophilicity of P(NIPAAm-co-PAA) film with decreased temperature was confirmed by water contact angle measurement. Single strand DNA (20mer) was chemically immobilized on the surface and then antibody (anti-mouse CD45, mCD45) modified with the complementary single strand DNA was immobilized on the surface through DNA duplex formation. The mCD45 antibody immobilization was confirmed by immunostaining. HeLa cells (mCD45 negative) and mouse bone marrow (BM) cells (mCD45 positive) were adhered on the surfaces at 37 °C. Although HeLa cells were detached by 4 °C incubation, BM cells were still adhered on the surface and then the adhered cells were released by DNase treatment. From these results, it was suggested that cells could be selectively captured and collected by using a film having surface that immobilizes an antibody via DNA duplex formation.
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Affiliation(s)
- Tsuyoshi Kimura
- a Institute of Biomaterials and Bioengineering , Tokyo Medical and Dental University , Tokyo , Japan
| | - Naoko Nakamura
- a Institute of Biomaterials and Bioengineering , Tokyo Medical and Dental University , Tokyo , Japan
| | - Kanji Umeda
- a Institute of Biomaterials and Bioengineering , Tokyo Medical and Dental University , Tokyo , Japan
| | - Yoshihide Hashimoto
- a Institute of Biomaterials and Bioengineering , Tokyo Medical and Dental University , Tokyo , Japan
| | - Akio Kishida
- a Institute of Biomaterials and Bioengineering , Tokyo Medical and Dental University , Tokyo , Japan
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Plačková L, Oklestkova J, Pospíšková K, Poláková K, Buček J, Stýskala J, Zatloukal M, Šafařík I, Zbořil R, Strnad M, Doležal K, Novák O. Microscale magnetic microparticle-based immunopurification of cytokinins from Arabidopsis root apex. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2017; 89:1065-1075. [PMID: 27943492 DOI: 10.1111/tpj.13443] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 11/09/2016] [Accepted: 11/24/2016] [Indexed: 06/06/2023]
Abstract
Cytokinins (CKs) are pivotal plant hormones that have crucial roles in plant growth and development. However, their isolation and quantification are usually challenging because of their extremely low levels in plant tissues (pmol g-1 fresh weight). We have developed a simple microscale magnetic immunoaffinity-based method for selective one-step isolation of CKs from very small amounts of plant tissue (less than 0.1 mg fresh weight). The capacity of the immunosorbent and the effect of the complex plant matrix on the yield of the rapid one-step purification were tested using a wide range of CK concentrations. The total recovery range of the new microscale isolation procedure was found to be 30-80% depending on individual CKs. Immunoaffinity extraction using group-specific monoclonal CK antibodies immobilized onto magnetic microparticles was combined with a highly sensitive ultrafast mass spectrometry-based method with a detection limit close to one attomole. This combined approach allowed metabolic profiling of a wide range of naturally occurring CKs (bases, ribosides and N9 -glucosides) in 1.0-mm sections of the Arabidopsis thaliana root meristematic zone. The magnetic immunoaffinity separation method was shown to be a simple and extremely fast procedure requiring minimal amounts of plant tissue.
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Affiliation(s)
- Lenka Plačková
- Laboratory of Growth Regulators, Centre of Region Haná for Biotechnological and Agricultural Research, Faculty of Sciences of Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science of Palacký University, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Jana Oklestkova
- Laboratory of Growth Regulators, Centre of Region Haná for Biotechnological and Agricultural Research, Faculty of Sciences of Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Kristýna Pospíšková
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Kateřina Poláková
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Jan Buček
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science of Palacký University, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Jakub Stýskala
- Department of Organic Chemistry, Faculty of Science, Palacký University, 17 Listopadu 12, CZ-77146, Olomouc, Czech Republic
| | - Marek Zatloukal
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science of Palacký University, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Ivo Šafařík
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
- Department of Nanobiotechnology, Biology Centre, ISB, CAS, Na Sádkách 7, CZ-37005, České Budějovice, Czech Republic
| | - Radek Zbořil
- Regional Centre of Advanced Technologies and Materials, Palacký University, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Miroslav Strnad
- Laboratory of Growth Regulators, Centre of Region Haná for Biotechnological and Agricultural Research, Faculty of Sciences of Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Karel Doležal
- Laboratory of Growth Regulators, Centre of Region Haná for Biotechnological and Agricultural Research, Faculty of Sciences of Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science of Palacký University, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
| | - Ondřej Novák
- Laboratory of Growth Regulators, Centre of Region Haná for Biotechnological and Agricultural Research, Faculty of Sciences of Palacký University and Institute of Experimental Botany, Czech Academy of Sciences, Šlechtitelů 27, CZ-78371, Olomouc, Czech Republic
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In situ single cell detection via microfluidic magnetic bead assay. PLoS One 2017; 12:e0172697. [PMID: 28222140 PMCID: PMC5319813 DOI: 10.1371/journal.pone.0172697] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 02/08/2017] [Indexed: 01/13/2023] Open
Abstract
We present a single cell detection device based on magnetic bead assay and micro Coulter counters. This device consists of two successive micro Coulter counters, coupled with a high gradient magnetic field generated by an external magnet. The device can identify single cells in terms of the transit time difference of the cell through the two micro Coulter counters. Target cells are conjugated with magnetic beads via specific antibody and antigen binding. A target cell traveling through the two Coulter counters interacts with the magnetic field, and have a longer transit time at the 1st counter than that at the 2nd counter. In comparison, a non-target cell has no interaction with the magnetic field, and hence has nearly the same transit times through the two counters. Each cell passing through the two counters generates two consecutive voltage pulses one after the other; the pulse widths and magnitudes indicating the cell’s transit times through the counters and the cell’s size respectively. Thus, by measuring the pulse widths (transit times) of each cell through the two counters, each single target cell can be differentiated from non-target cells even if they have similar sizes. We experimentally proved that the target human umbilical vein endothelial cells (HUVECs) and non-target rat adipose-derived stem cells (rASCs) have significant different transit time distribution, from which we can determine the recognition regions for both cell groups quantitatively. We further demonstrated that within a mixed cell population of rASCs and HUVECs, HUVECs can be detected in situ and the measured HUVECs ratios agree well with the pre-set ratios. With the simple device structure and easy sample preparation, this method is expected to enable single cell detection in a continuous flow and can be applied to facilitate general cell detection applications such as stem cell identification and enumeration.
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Cowger TA, Yang Y, Rink DE, Todd T, Chen H, Shen Y, Yan Y, Xie J. Protein-Adsorbed Magnetic-Nanoparticle-Mediated Assay for Rapid Detection of Bacterial Antibiotic Resistance. Bioconjug Chem 2017; 28:890-896. [PMID: 28192992 DOI: 10.1021/acs.bioconjchem.7b00016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Antibiotic susceptibility tests have been used for years as a crucial diagnostic tool against antibiotic-resistant bacteria. However, due to a lack of biomarkers specific to resistant types, these approaches are often time-consuming, inaccurate, and inflexible in drug selections. Here, we present a novel susceptibility test method named protein-adsorbed nanoparticle-mediated matrix-assisted laser desorption-ionization mass spectrometry, or PANMS. Briefly, we adsorb five different proteins (β-casein, α-lactalbumin, human serum albumin, fibrinogen, and avidin) onto the surface of Fe3O4. Upon interaction with bacteria surface, proteins were displaced from the nanoparticle surface, the amounts of which were quantified by matrix-assisted laser desorption ionization mass spectrometry. We find that the protein displacement profile was different distinctive among different bacteria strains and, in particular, between wild-type and drug-resistant strains. More excitingly, we observe bacteria resistant to drugs of the same mechanisms share similar displacement profiles on a linear discriminant analysis (LDA) map. This suggests the possibility of using PANMS to identify the type of mechanism behind antibiotic resistance, which was confirmed in a blind test. Given that PANMS is free of drug incubation and the whole procedure takes less than 50 min, it holds great potential as a high-throughput, low-cost, and accurate drug susceptibility test in the clinic.
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Affiliation(s)
- Taku A Cowger
- Department of Chemistry and Bio-Imaging Research Center, ‡College of Engineering, and §Department of Epidemiology and Biostatistics, University of Georgia , Athens, Georgia 30602, United States
| | - Yaping Yang
- Department of Chemistry and Bio-Imaging Research Center, ‡College of Engineering, and §Department of Epidemiology and Biostatistics, University of Georgia , Athens, Georgia 30602, United States
| | - David E Rink
- Department of Chemistry and Bio-Imaging Research Center, ‡College of Engineering, and §Department of Epidemiology and Biostatistics, University of Georgia , Athens, Georgia 30602, United States
| | - Trever Todd
- Department of Chemistry and Bio-Imaging Research Center, ‡College of Engineering, and §Department of Epidemiology and Biostatistics, University of Georgia , Athens, Georgia 30602, United States
| | - Hongmin Chen
- Department of Chemistry and Bio-Imaging Research Center, ‡College of Engineering, and §Department of Epidemiology and Biostatistics, University of Georgia , Athens, Georgia 30602, United States
| | - Ye Shen
- Department of Chemistry and Bio-Imaging Research Center, ‡College of Engineering, and §Department of Epidemiology and Biostatistics, University of Georgia , Athens, Georgia 30602, United States
| | - Yajun Yan
- Department of Chemistry and Bio-Imaging Research Center, ‡College of Engineering, and §Department of Epidemiology and Biostatistics, University of Georgia , Athens, Georgia 30602, United States
| | - Jin Xie
- Department of Chemistry and Bio-Imaging Research Center, ‡College of Engineering, and §Department of Epidemiology and Biostatistics, University of Georgia , Athens, Georgia 30602, United States
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50
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Gómez-Pastora J, Xue X, Karampelas IH, Bringas E, Furlani EP, Ortiz I. Analysis of separators for magnetic beads recovery: From large systems to multifunctional microdevices. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.07.050] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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