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Xu R, Cheng Y, Li X, Zhang Z, Zhu M, Qi X, Chen L, Han L. Aptamer-based signal amplification strategies coupled with microchips for high-sensitivity bioanalytical applications: A review. Anal Chim Acta 2022; 1209:339893. [DOI: 10.1016/j.aca.2022.339893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/19/2022] [Accepted: 04/28/2022] [Indexed: 02/04/2023]
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Serum IgG Profiling of Toddlers Reveals a Subgroup with Elevated Seropositive Antibodies to Viruses Correlating with Increased Vaccine and Autoantigen Responses. J Clin Immunol 2021; 41:1031-1047. [PMID: 33656624 PMCID: PMC7927113 DOI: 10.1007/s10875-021-00993-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 02/10/2021] [Indexed: 12/11/2022]
Abstract
Purpose The human antibody repertoire forms in response to infections, the microbiome, vaccinations, and environmental exposures. The specificity of such antibody responses was compared among a cohort of toddlers to identify differences between seropositive versus seronegative responses. Methods An assessment of the serum IgM and IgG antibody reactivities in 197 toddlers of 1- and 2-years of age was performed with a microfluidic array containing 110 distinct antigens. Longitudinal profiling was done from years 1 to 2. Seropositivity to RNA and DNA viruses; bacteria; live attenuated, inactive, and subunit vaccines; and autoantigens was compared. A stratification was developed based on quantitative variations in the IgG responses. Clinical presentations and previously known genetic risk alleles for various immune system conditions were investigated in relation to IgG responses. Results IgG reactivities stratified toddlers into low, moderate, and high responder groups. The high group (17%) had elevated IgG responses to multiple RNA and DNA viruses (e.g., respiratory syncytial virus, Epstein-Barr virus, adenovirus, Coxsackievirus) and this correlated with increased responses to live attenuated viral vaccines and certain autoantigens. This high group was more likely to be associated with gestational diabetes and an older age. Genetic analyses identified polymorphisms in the IL2RB, TNFSF4, and INS genes in two high responder individuals that were associated with their elevated cytokine levels and clinical history of eczema and asthma. Conclusion Serum IgG profiling of toddlers reveals correlations between the magnitude of the antibody responses towards viruses, live attenuated vaccines, and certain autoantigens. A low responder group had much weaker responses overall, including against vaccines. The serum antibody screen also identifies individuals with IgG responses to less common infections (West Nile virus, parvovirus, tuberculosis). The characterization of the antibody responses in combination with the identification of genetic risk alleles provides an opportunity to identify children with increased risk of clinical disease. Supplementary Information The online version contains supplementary material available at 10.1007/s10875-021-00993-w.
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Padmanabhan S, Sposito A, Yeh M, Everitt M, White I, DeVoe DL. Reagent integration and controlled release for multiplexed nucleic acid testing in disposable thermoplastic 2D microwell arrays. BIOMICROFLUIDICS 2021; 15:014103. [PMID: 33520047 PMCID: PMC7816768 DOI: 10.1063/5.0039146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 01/05/2021] [Indexed: 06/12/2023]
Abstract
The seamless integration of reagents into microfluidic devices can serve to significantly reduce assay complexity and cost for disposable diagnostics. In this work, the integration of multiplexed reagents into thermoplastic 2D microwell arrays is demonstrated using a scalable pin spotting technique. Using a simple and low-cost narrow-bore capillary spotting pin, high resolution deposition of concentrated reagents within the arrays of enclosed nanoliter-scale wells is achieved. The pin spotting method is further employed to encapsulate the deposited reagents with a chemically modified wax layer that serves to prevent disruption of the dried assay components during sample introduction through a shared microchannel, while also enabling temperature-controlled release after sample filling is complete. This approach supports the arbitrary patterning and release of different reagents within individual wells without crosstalk for multiplexed analyses. The performance of the in-well spotting technique is characterized using on-chip rolling circle amplification to evaluate its potential for nucleic acid-based diagnostics.
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Affiliation(s)
- S. Padmanabhan
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, USA
| | - A. Sposito
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, USA
| | - M. Yeh
- Department of Mechanical Engineering, University of Maryland, College Park, Maryland 20742, USA
| | - M. Everitt
- Department of Bioengineering, University of Maryland, College Park, Maryland 20742, USA
| | - I. White
- Department of Bioengineering, University of Maryland, College Park, Maryland 20742, USA
| | - D. L. DeVoe
- Author to whom correspondence should be addressed:. Tel.: +1-301-405-8125
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Menachery A, Vembadi A, Brimmo A, Qasaimeh MA. Electrically Actuated Concentration of Microparticles through Levitation and Convective Flows in Evaporating Droplets. ACS APPLIED BIO MATERIALS 2020; 3:1845-1852. [DOI: 10.1021/acsabm.0c00020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anoop Menachery
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Abhishek Vembadi
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Ayoola Brimmo
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE
- Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, New York University, 6 Metrotech Center, Brooklyn, New York 11201, United States
| | - Mohammad A. Qasaimeh
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE
- Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, New York University, 6 Metrotech Center, Brooklyn, New York 11201, United States
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Luan J, Seth A, Gupta R, Wang Z, Rathi P, Cao S, Gholami Derami H, Tang R, Xu B, Achilefu S, Morrissey JJ, Singamaneni S. Ultrabright fluorescent nanoscale labels for the femtomolar detection of analytes with standard bioassays. Nat Biomed Eng 2020; 4:518-530. [PMID: 32313101 PMCID: PMC7231648 DOI: 10.1038/s41551-020-0547-4] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/09/2020] [Indexed: 01/28/2023]
Abstract
The detection and quantification of low-abundance molecular biomarkers in biological samples is challenging. Here, we show that a plasmonic nanoscale construct serving as an ‘add-on’ label for a broad range of bioassays improves their signal-to-noise ratio and dynamic range without altering their workflow and read-out devices. The plasmonic construct consists of a bovine-serum-albumin scaffold with approximately 210 IRDye 800CW fluorophores (with fluorescence intensity approximately 6700-fold that of a single 800CW fluorophore), a polymer-coated gold nanorod acting as a plasmonic antenna, and biotin as a high-affinity biorecognition element. Its emission wavelength can be tuned over the visible and near-infrared spectral regions by modifying its size, shape and composition. It is compatible with multiplexed bead-based immunoassays (it improves the limit of detection by up to 4,750-fold in fluorescence-linked immunosorbent assays), immuno-microarrays, flow-cytometry and immunocytochemistry methods, and it shortens overall assay times and lowers sample volumes, as shown for the detection of a pro-inflammatory cytokine in mouse interstitial fluid and of urinary biomarkers in patient samples.
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Affiliation(s)
- Jingyi Luan
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St Louis, MO, USA
| | - Anushree Seth
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St Louis, MO, USA
| | - Rohit Gupta
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St Louis, MO, USA
| | - Zheyu Wang
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St Louis, MO, USA
| | - Priya Rathi
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St Louis, MO, USA
| | - Sisi Cao
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St Louis, MO, USA
| | - Hamed Gholami Derami
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St Louis, MO, USA
| | - Rui Tang
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Baogang Xu
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Samuel Achilefu
- Department of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Jeremiah J Morrissey
- Department of Anesthesiology, Division of Clinical and Translational Research, Washington University in St. Louis, St. Louis, MO, USA.,Siteman Cancer Center, Washington University in St. Louis, St. Louis, MO, USA
| | - Srikanth Singamaneni
- Department of Mechanical Engineering and Materials Science, Institute of Materials Science and Engineering, Washington University in St. Louis, St Louis, MO, USA. .,Siteman Cancer Center, Washington University in St. Louis, St. Louis, MO, USA.
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Xiao Q, Xu C. Research progress on chemiluminescence immunoassay combined with novel technologies. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115780] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Preparation Methods for Phospholipid Vesicle Arrays and Their Applications in Biological Analysis. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1016/s1872-2040(19)61179-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Lue JH, Su YS, Kuo TC. Workshop, Cost-Effective and Streamlined Fabrications of Re-Usable World-To-Chip Connectors for Handling Sample of Limited Volume and for Assembling Chip Array. SENSORS 2018; 18:s18124223. [PMID: 30513786 PMCID: PMC6308506 DOI: 10.3390/s18124223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 11/23/2018] [Accepted: 11/26/2018] [Indexed: 11/16/2022]
Abstract
The world-to-chip interface is an essential yet intriguing part of making and employing microfluidic devices. A user-friendly connector could be expensive or difficult to make. We fabricated two ports of microfluidic chips with easily available materials including Teflon blocks, double adhesive films, coverslips, and transparency films. By using a mini grinder, coverslips were drilled to form small holes for the fluid passages between port and chip. Except for the double adhesive films, the resultant ports are durable and re-useable. The DK1 port, contains a mini three-way switch which allows users to handle fluid by a tube-connected pump, or by a manual pipette for the sample of trace amount. The other port, the DK2 port, provides secured tube-connections. Importantly, we invented a bridge made of craft cutter-treated transparency films and double adhesive films to mediate liquid flow between DK2 port and chip. With the use of a bridge, users do not need to design new ports for new chips. Also, individual chips could be linked by a bridge to form a chip array. We successfully applied DK1 port on a microfluidic chip where green fluorescent protein was immobilized. We used DK2 port on an array of fish chips where the embryos of zebra fish developed.
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Affiliation(s)
- Jiann-Hwa Lue
- Department of Optometry, Central Taiwan University of Science and Technology, Taichung City 406, Taiwan.
| | - Yu-Sheng Su
- Department of Computer Science and Engineering, National Taiwan Ocean University, Keelung City 202, Taiwan.
| | - Tai-Chih Kuo
- Department of Biochemistry and Molecular Cell Biology, Taipei Medical University, Taipei City 110, Taiwan.
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Sathish S, Ricoult SG, Toda-Peters K, Shen AQ. Microcontact printing with aminosilanes: creating biomolecule micro- and nanoarrays for multiplexed microfluidic bioassays. Analyst 2017; 142:1772-1781. [DOI: 10.1039/c7an00273d] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Aqueous based microcontact printing (μCP) to create micro- and nanoarrays of (3-aminopropyl)triethoxysilane (APTES) on glass substrates of microfluidic devices for covalent immobilization of DNA aptamers and antibodies.
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Affiliation(s)
- Shivani Sathish
- Micro/Bio/Nanofluidics Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa
- Japan
| | - Sébastien G. Ricoult
- Micro/Bio/Nanofluidics Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa
- Japan
| | - Kazumi Toda-Peters
- Micro/Bio/Nanofluidics Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa
- Japan
| | - Amy Q. Shen
- Micro/Bio/Nanofluidics Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa
- Japan
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Dixit CK, Kadimisetty K, Otieno BA, Tang C, Malla S, Krause CE, Rusling JF. Electrochemistry-based approaches to low cost, high sensitivity, automated, multiplexed protein immunoassays for cancer diagnostics. Analyst 2016; 141:536-47. [PMID: 26525998 PMCID: PMC4701586 DOI: 10.1039/c5an01829c] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Early detection and reliable diagnostics are keys to effectively design cancer therapies with better prognoses. The simultaneous detection of panels of biomarker proteins holds great promise as a general tool for reliable cancer diagnostics. A major challenge in designing such a panel is to decide upon a coherent group of biomarkers which have higher specificity for a given type of cancer. The second big challenge is to develop test devices to measure these biomarkers quantitatively with high sensitivity and specificity, such that there are no interferences from the complex serum or tissue matrices. Lastly, integrating all these tests into a technology that does not require exclusive training to operate, and can be used at point-of-care (POC) is another potential bottleneck in futuristic cancer diagnostics. In this article, we review electrochemistry-based tools and technologies developed and/or used in our laboratories to construct low-cost microfluidic protein arrays for the highly sensitive detection of a panel of cancer-specific biomarkers with high specificity which at the same time has the potential to be translated into POC applications.
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Affiliation(s)
- Chandra K. Dixit
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | | | - Brunah A. Otieno
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | - Chi Tang
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | - Spundana Malla
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
| | - Colleen E. Krause
- Department of Chemistry, University of Hartford, West Hartford, CT 06117, USA
| | - James F. Rusling
- Department of Chemistry, University of Connecticut, Storrs, CT 06269, USA
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, CT 06269, USA
- School of Chemistry, National University of Ireland at Galway, Ireland
- Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
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Gorjikhah F, Davaran S, Salehi R, Bakhtiari M, Hasanzadeh A, Panahi Y, Emamverdy M, Akbarzadeh A. Improving "lab-on-a-chip" techniques using biomedical nanotechnology: a review. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2016; 44:1609-14. [PMID: 26758969 DOI: 10.3109/21691401.2015.1129619] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Nanotechnology and its applications in biomedical sciences principally in molecular nanodiagnostics are known as nanomolecular diagnostics, which provides new options for clinical nanodiagnostic techniques. Molecular nanodiagnostics are a critical role in the development of personalized medicine, which features point-of care performance of diagnostic procedure. This can to check patients at point-of-care facilities or in remote or resource-poor locations, therefore reducing checking time from days to minutes. In this review, applications of nanotechnology suited to biomedicine are discussed in two main class: biomedical applications for use inside (such as drugs, diagnostic techniques, prostheses, and implants) and outside the body (such as "lab-on-a-chip" techniques). A lab-on-a-chip (LOC) is a tool that incorporates numerous laboratory tasks onto a small device, usually only millimeters or centimeters in size. Finally, are discussed the applications of biomedical nanotechnology in improving "lab-on-a-chip" techniques.
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Affiliation(s)
- Fatemeh Gorjikhah
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran ;,b Student Research Committee, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Soodabeh Davaran
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran ;,c Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iranl
| | - Roya Salehi
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Mohsen Bakhtiari
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran
| | - Arash Hasanzadeh
- d Laboratory of Biochemistry, Department of Biology, Faculty of Natural Sciences, University of Tabriz , Tabriz , Iran
| | - Yunes Panahi
- f Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
| | - Masumeh Emamverdy
- d Laboratory of Biochemistry, Department of Biology, Faculty of Natural Sciences, University of Tabriz , Tabriz , Iran
| | - Abolfazl Akbarzadeh
- a Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences , Tabriz , Iran ;,c Drug Applied Research Center, Tabriz University of Medical Sciences , Tabriz , Iranl ;,e Biotechnology Research Center, Tabriz University of Medical Sciences , Tabriz , Iran ;,f Chemical Injuries Research Center, Baqiyatallah University of Medical Sciences , Tehran , Iran
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