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Sathirapongsasuti N, Panaksri A, Jusain B, Boonyagul S, Pechprasarn S, Jantanasakulwong K, Suksuwan A, Thongkham S, Tanadchangsaeng N. Enhancing protein trapping efficiency of graphene oxide-polybutylene succinate nanofiber membrane via molecular imprinting. Sci Rep 2023; 13:15398. [PMID: 37717111 PMCID: PMC10505162 DOI: 10.1038/s41598-023-42646-5] [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: 06/14/2023] [Accepted: 09/13/2023] [Indexed: 09/18/2023] Open
Abstract
Filtration of biological liquids has been widely employed in biological, medical, and environmental investigations due to its convenience; many could be performed without energy and on-site, particularly protein separation. However, most available membranes are universal protein absorption or sub-fractionation due to molecule sizes or properties. SPMA, or syringe-push membrane absorption, is a quick and easy way to prepare biofluids for protein evaluation. The idea of initiating SPMA was to filter proteins from human urine for subsequent proteomic analysis. In our previous study, we developed nanofiber membranes made from polybutylene succinate (PBS) composed of graphene oxide (GO) for SPMA. In this study, we combined molecular imprinting with our developed PBS fiber membranes mixed with graphene oxide to improve protein capture selectivity in a lock-and-key fashion and thereby increase the efficacy of protein capture. As a model, we selected albumin from human serum (ABH), a clinically significant urine biomarker, for proteomic application. The nanofibrous membrane was generated utilizing the electrospinning technique with PBS/GO composite. The PBS/GO solution mixed with ABH was injected from a syringe and transformed into nanofibers by an electric voltage, which led the fibers to a rotating collector spinning for fiber collection. The imprinting process was carried out by removing the albumin protein template from the membrane through immersion of the membrane in a 60% acetonitrile solution for 4 h to generate a molecular imprint on the membrane. Protein trapping ability, high surface area, the potential for producing affinity with proteins, and molecular-level memory were all evaluated using the fabricated membrane morphology, protein binding capacity, and quantitative protein measurement. This study revealed that GO is a controlling factor, increasing electrical conductivity and reducing fiber sizes and membrane pore areas in PBS-GO-composites. On the other hand, the molecular imprinting did not influence membrane shape, nanofiber size, or density. Human albumin imprinted membrane could increase the PBS-GO membrane's ABH binding capacity from 50 to 83%. It can be indicated that applying the imprinting technique in combination with the graphene oxide composite technique resulted in enhanced ABH binding capabilities than using either technique individually in membrane fabrication. The suitable protein elution solution is at 60% acetonitrile with an immersion time of 4 h. Our approach has resulted in the possibility of improving filter membranes for protein enrichment and storage in a variety of biological fluids.
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Affiliation(s)
- Nuankanya Sathirapongsasuti
- Program in Translational Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Ratchathewi, Bangkok, Thailand
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bang Pli, Samut Prakan, Thailand
| | - Anuchan Panaksri
- College of Biomedical Engineering, Rangsit University, Lak Hok, Pathumthani, Thailand
| | - Benjabhorn Jusain
- College of Biomedical Engineering, Rangsit University, Lak Hok, Pathumthani, Thailand
| | - Sani Boonyagul
- College of Biomedical Engineering, Rangsit University, Lak Hok, Pathumthani, Thailand
| | - Suejit Pechprasarn
- College of Biomedical Engineering, Rangsit University, Lak Hok, Pathumthani, Thailand
| | - Kittisak Jantanasakulwong
- School of Agro-Industry, Faculty of Agro-Industry, Chiang Mai University, Mae Hia, Chiang Mai, Thailand
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Klong Luang, Pathumthani, Thailand
| | - Acharee Suksuwan
- The Halal Science Center, Chulalongkorn University, Pathum Wan, Bangkok, Thailand
| | - Somprasong Thongkham
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Klong Luang, Pathumthani, Thailand
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Rafat N, Brewer L, Das N, Trivedi DJ, Kaszala BK, Sarkar A. Inexpensive High-Throughput Multiplexed Biomarker Detection Using Enzymatic Metallization with Cellphone-Based Computer Vision. ACS Sens 2023; 8:534-542. [PMID: 36753573 PMCID: PMC9972466 DOI: 10.1021/acssensors.2c01429] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Multiplexed biomarker detection can play a critical role in reliable and comprehensive disease diagnosis and prediction of outcome. Enzyme-linked immunosorbent assay (ELISA) is the gold standard method for immunobinding-based biomarker detection. However, this is currently expensive, limited to centralized laboratories, and usually limited to the detection of a single biomarker at a time. We present a low-cost, smartphone-based portable biosensing platform for high-throughput, multiplexed, sensitive, and quantitative detection of biomarkers from single, low-volume drops (<1 μL) of clinical samples. Biomarker binding to spotted capture antigens is converted, via enzymatic metallization, to the localized surface deposition of amplified, dry-stable, silver metal spots whose darkness is proportional to biomarker concentration. A custom smartphone application is developed, which uses real-time computer vision to enable easy optical detection of the deposited metal spots and sensitive and reproducible quantification of the biomarkers. We demonstrate the use of this platform for high-throughput, multiplexed detection of multiple viral antigen-specific antibodies from convalescent COVID-19 patient serum as well as vaccine-elicited antibody responses from uninfected vaccine-recipient serum and show that distinct multiplexed antibody fingerprints are observed among them.
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Affiliation(s)
- Neda Rafat
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Lee Brewer
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Nabojeet Das
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Dhruti J Trivedi
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Balazs K Kaszala
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Aniruddh Sarkar
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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Thu VTA, Dat LD, Jayanti RP, Trinh HKT, Hung TM, Cho YS, Long NP, Shin JG. Advancing personalized medicine for tuberculosis through the application of immune profiling. Front Cell Infect Microbiol 2023; 13:1108155. [PMID: 36844400 PMCID: PMC9950414 DOI: 10.3389/fcimb.2023.1108155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/17/2023] [Indexed: 02/12/2023] Open
Abstract
While early and precise diagnosis is the key to eliminating tuberculosis (TB), conventional methods using culture conversion or sputum smear microscopy have failed to meet demand. This is especially true in high-epidemic developing countries and during pandemic-associated social restrictions. Suboptimal biomarkers have restricted the improvement of TB management and eradication strategies. Therefore, the research and development of new affordable and accessible methods are required. Following the emergence of many high-throughput quantification TB studies, immunomics has the advantages of directly targeting responsive immune molecules and significantly simplifying workloads. In particular, immune profiling has been demonstrated to be a versatile tool that potentially unlocks many options for application in TB management. Herein, we review the current approaches for TB control with regard to the potentials and limitations of immunomics. Multiple directions are also proposed to hopefully unleash immunomics' potential in TB research, not least in revealing representative immune biomarkers to correctly diagnose TB. The immune profiles of patients can be valuable covariates for model-informed precision dosing-based treatment monitoring, prediction of outcome, and the optimal dose prediction of anti-TB drugs.
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Affiliation(s)
- Vo Thuy Anh Thu
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea,Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Ly Da Dat
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea,Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Rannissa Puspita Jayanti
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea,Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Hoang Kim Tu Trinh
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh, Ho Chi Minh City, Vietnam
| | - Tran Minh Hung
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea,Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Yong-Soon Cho
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea,Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Nguyen Phuoc Long
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea,Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea,*Correspondence: Jae-Gook Shin, ; Nguyen Phuoc Long,
| | - Jae-Gook Shin
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea,Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea,Department of Clinical Pharmacology, Inje University Busan Paik Hospital, Busan, Republic of Korea,*Correspondence: Jae-Gook Shin, ; Nguyen Phuoc Long,
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4
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Wang Y, Li Z, Mo F, Chen-Mayfield TJ, Saini A, LaMere AM, Hu Q. Chemically engineering cells for precision medicine. Chem Soc Rev 2023; 52:1068-1102. [PMID: 36633324 DOI: 10.1039/d2cs00142j] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Cell-based therapy holds great potential to address unmet medical needs and revolutionize the healthcare industry, as demonstrated by several therapeutics such as CAR-T cell therapy and stem cell transplantation that have achieved great success clinically. Nevertheless, natural cells are often restricted by their unsatisfactory in vivo trafficking and lack of therapeutic payloads. Chemical engineering offers a cost-effective, easy-to-implement engineering tool that allows for strengthening the inherent favorable features of cells and confers them new functionalities. Moreover, in accordance with the trend of precision medicine, leveraging chemical engineering tools to tailor cells to accommodate patients individual needs has become important for the development of cell-based treatment modalities. This review presents a comprehensive summary of the currently available chemically engineered tools, introduces their application in advanced diagnosis and precision therapy, and discusses the current challenges and future opportunities.
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Affiliation(s)
- Yixin Wang
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA. .,Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA.,Wisconsin Center for NanoBioSystems, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Zhaoting Li
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA. .,Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA.,Wisconsin Center for NanoBioSystems, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Fanyi Mo
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA.
| | - Ting-Jing Chen-Mayfield
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA.
| | - Aryan Saini
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA.
| | - Afton Martin LaMere
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA.
| | - Quanyin Hu
- Pharmaceutical Sciences Division, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA. .,Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53705, USA.,Wisconsin Center for NanoBioSystems, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
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Quyen TL, Vinayaka AC, Golabi M, Nguyen T, Ngoc HV, Bang DD, Wolff A. Multiplexed Detection of Pathogens Using Solid-Phase Loop-Mediated Isothermal Amplification on a Supercritical Angle Fluorescence Array for Point-of-Care Applications. ACS Sens 2022; 7:3343-3351. [PMID: 36284082 DOI: 10.1021/acssensors.2c01337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Adaptations of new generation molecular techniques for multiplexed detection of pathogens are gaining interest in the field of point-of-care (POC) industry and onsite testing. Loop-mediated isothermal amplification (LAMP), an advanced molecular amplification technique, has proven promising due to its unique features that suits ideal for POC applications. However, application of LAMP for multiplexed detection of pathogens remains challenging because of the difficulty in the identification of specific LAMP amplicons that does not have a well-definite molecular size. In this study, we developed a solid-phase loop-mediated isothermal amplification (SP-LAMP) technique to address the challenge. Integration of LAMP with the supercritical angle fluorescence (SAF) micro-optic structures as a solid support (SS) in an array format enabled spatial separation of LAMP amplicons in a multiplexed configuration. Important parameters such as length of the SS primers, length of the primer-binding region, the effect of surface density of immobilized SS primers, and cross-reactivity among the primers of different targets were iteratively tested and optimized. With the combination of SP-LAMP and SAF techniques, it was possible to detect multiple pathogens that include Salmonella spp, Campylobater spp., Campylobacter coli, Campylobacter jejuni, avian influenza virus (AIV), and pan avian internal control (IC) under singleplex conditions. The multiplexing capacity of the SP-LAMP was demonstrated using AIV and IC with promising results. The success of SP-LAMP has opened a promising direction toward the development of a multiplex POC system for rapid detection of multiple pathogens.
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Affiliation(s)
- Than Linh Quyen
- BioLabChip, DTU-Bioengineering (Department of Biotechnology and Biomedicine), Technical University of Denmark, Kgs. Lyngby2800, Denmark
| | - Aaydha Chidambara Vinayaka
- Laboratory of Applied Micro and Nanotechnology (LAMINATE), DTU-Bioengineering (Department of Biotechnology and Biomedicine), Technical University of Denmark, Kgs. Lyngby2800, Denmark
| | - Mohsen Golabi
- Laboratory of Applied Micro and Nanotechnology (LAMINATE), DTU-Bioengineering (Department of Biotechnology and Biomedicine), Technical University of Denmark, Kgs. Lyngby2800, Denmark
| | - Trieu Nguyen
- BioLabChip, DTU-Bioengineering (Department of Biotechnology and Biomedicine), Technical University of Denmark, Kgs. Lyngby2800, Denmark
| | - Huynh Van Ngoc
- BioLabChip, DTU-Bioengineering (Department of Biotechnology and Biomedicine), Technical University of Denmark, Kgs. Lyngby2800, Denmark
| | - Dang Duong Bang
- Laboratory of Applied Micro and Nanotechnology (LAMINATE), DTU-Bioengineering (Department of Biotechnology and Biomedicine), Technical University of Denmark, Kgs. Lyngby2800, Denmark
| | - Anders Wolff
- BioLabChip, DTU-Bioengineering (Department of Biotechnology and Biomedicine), Technical University of Denmark, Kgs. Lyngby2800, Denmark
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Akarapipad P, Bertelson E, Pessell A, Wang TH, Hsieh K. Emerging Multiplex Nucleic Acid Diagnostic Tests for Combating COVID-19. BIOSENSORS 2022; 12:bios12110978. [PMID: 36354487 PMCID: PMC9688249 DOI: 10.3390/bios12110978] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 10/26/2022] [Accepted: 10/31/2022] [Indexed: 05/29/2023]
Abstract
The COVID-19 pandemic caused by SARS-CoV-2 has drawn attention to the need for fast and accurate diagnostic testing. Concerns from emerging SARS-CoV-2 variants and other circulating respiratory viral pathogens further underscore the importance of expanding diagnostic testing to multiplex detection, as single-plex diagnostic testing may fail to detect emerging variants and other viruses, while sequencing can be too slow and too expensive as a diagnostic tool. As a result, there have been significant advances in multiplex nucleic-acid-based virus diagnostic testing, creating a need for a timely review. This review first introduces frequent nucleic acid targets for multiplex virus diagnostic tests, then proceeds to a comprehensive and up-to-date overview of multiplex assays that incorporate various detection reactions and readout modalities. The performances, advantages, and disadvantages of these assays are discussed, followed by highlights of platforms that are amenable for point-of-care use. Finally, this review points out the remaining technical challenges and shares perspectives on future research and development. By examining the state of the art and synthesizing existing development in multiplex nucleic acid diagnostic tests, this review can provide a useful resource for facilitating future research and ultimately combating COVID-19.
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Affiliation(s)
- Patarajarin Akarapipad
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Elizabeth Bertelson
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Alexander Pessell
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Tza-Huei Wang
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Kuangwen Hsieh
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
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7
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Chu SS, Nguyen HA, Zhang J, Tabassum S, Cao H. Towards Multiplexed and Multimodal Biosensor Platforms in Real-Time Monitoring of Metabolic Disorders. SENSORS (BASEL, SWITZERLAND) 2022; 22:5200. [PMID: 35890880 PMCID: PMC9323394 DOI: 10.3390/s22145200] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Metabolic syndrome (MS) is a cluster of conditions that increases the probability of heart disease, stroke, and diabetes, and is very common worldwide. While the exact cause of MS has yet to be understood, there is evidence indicating the relationship between MS and the dysregulation of the immune system. The resultant biomarkers that are expressed in the process are gaining relevance in the early detection of related MS. However, sensing only a single analyte has its limitations because one analyte can be involved with various conditions. Thus, for MS, which generally results from the co-existence of multiple complications, a multi-analyte sensing platform is necessary for precise diagnosis. In this review, we summarize various types of biomarkers related to MS and the non-invasively accessible biofluids that are available for sensing. Then two types of widely used sensing platform, the electrochemical and optical, are discussed in terms of multimodal biosensing, figure-of-merit (FOM), sensitivity, and specificity for early diagnosis of MS. This provides a thorough insight into the current status of the available platforms and how the electrochemical and optical modalities can complement each other for a more reliable sensing platform for MS.
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Affiliation(s)
- Sung Sik Chu
- Department of Biomedical Engineering, Henry Samueli School of Engineering, University of California Irvine, Irvine, CA 92697, USA; (S.S.C.); (J.Z.)
| | - Hung Anh Nguyen
- Department of Electrical Engineering and Computer Science, Henry Samueli School of Engineering, University of California Irvine, Irvine, CA 92697, USA;
| | - Jimmy Zhang
- Department of Biomedical Engineering, Henry Samueli School of Engineering, University of California Irvine, Irvine, CA 92697, USA; (S.S.C.); (J.Z.)
| | - Shawana Tabassum
- Department of Electrical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA
| | - Hung Cao
- Department of Biomedical Engineering, Henry Samueli School of Engineering, University of California Irvine, Irvine, CA 92697, USA; (S.S.C.); (J.Z.)
- Department of Electrical Engineering and Computer Science, Henry Samueli School of Engineering, University of California Irvine, Irvine, CA 92697, USA;
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Protein discrimination using erythrosin B-based GUMBOS in combination with UV-Vis spectroscopy and chemometrics. Talanta 2021; 240:123164. [PMID: 34972064 DOI: 10.1016/j.talanta.2021.123164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 12/10/2021] [Accepted: 12/20/2021] [Indexed: 12/12/2022]
Abstract
GUMBOS (Group of Uniform Materials Based on Organic Salts) have recently emerged as interesting materials for protein analysis due to their unique features and high tunability. In this regard, four novel erythrosin B (EB)-based GUMBOS were synthesized and their potential to discriminate among proteins with distinct properties (e.g., size, charge, and hydrophobicity) was assessed. These solid-phase materials were prepared using a single-step metathesis reaction between EB and various phosphonium and ammonium cations, namely tetrabutylphosphonium (P4444+), tributylhexadecylphosphonium (P44416+), tetrabutylammonium (N4444+), and benzyldimethylhexadecylammonium (BDHA+). Subsequently, the effect of pH (3.0, 4.5, and 6.0) and reaction time (5, 10, and 15 min) on the discriminatory power of synthesized GUMBOS was evaluated. Absorption spectra resulting from the interaction between EB-based GUMBOS and proteins were analyzed using partial least squares discriminant analysis (PLSDA). Unlike time, the pH value was determined to have influence over GUMBOS discrimination potential. Correct protein assignments varied from 86.5% to 100.0%, and the best discriminatory results were observed for [P4444]2[EB] and [N4444]2[EB] at pH 6.0. Additionally, these two GUMBOS allowed discrimination of protein mixtures containing different ratios of albumin and myoglobin, which appeared as individualized clusters in the PLSDA scores plots. Overall, this study showcases EB-based GUMBOS as simple synthetic targets to provide a label-free, cost-effective, rapid, and successful approach for discrimination of single proteins and their mixtures.
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Vashist SK. Trends in Multiplex Immunoassays for In Vitro Diagnostics and Point-of-Care Testing. Diagnostics (Basel) 2021; 11:diagnostics11091630. [PMID: 34573972 PMCID: PMC8471512 DOI: 10.3390/diagnostics11091630] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 09/02/2021] [Indexed: 11/17/2022] Open
Affiliation(s)
- Sandeep Kumar Vashist
- Sensing Self Pte. Ltd., 160 Robinson Road, #20-03, Singapore Business Federation Ctr., Singapore 068914, Singapore
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Microfluidics-Based Plasmonic Biosensing System Based on Patterned Plasmonic Nanostructure Arrays. MICROMACHINES 2021; 12:mi12070826. [PMID: 34357236 PMCID: PMC8303257 DOI: 10.3390/mi12070826] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/27/2021] [Accepted: 07/12/2021] [Indexed: 11/18/2022]
Abstract
This review aims to summarize the recent advances and progress of plasmonic biosensors based on patterned plasmonic nanostructure arrays that are integrated with microfluidic chips for various biomedical detection applications. The plasmonic biosensors have made rapid progress in miniaturization sensors with greatly enhanced performance through the continuous advances in plasmon resonance techniques such as surface plasmon resonance (SPR) and localized SPR (LSPR)-based refractive index sensing, SPR imaging (SPRi), and surface-enhanced Raman scattering (SERS). Meanwhile, microfluidic integration promotes multiplexing opportunities for the plasmonic biosensors in the simultaneous detection of multiple analytes. Particularly, different types of microfluidic-integrated plasmonic biosensor systems based on versatile patterned plasmonic nanostructured arrays were reviewed comprehensively, including their methods and relevant typical works. The microfluidics-based plasmonic biosensors provide a high-throughput platform for the biochemical molecular analysis with the advantages such as ultra-high sensitivity, label-free, and real time performance; thus, they continue to benefit the existing and emerging applications of biomedical studies, chemical analyses, and point-of-care diagnostics.
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Churcher NKM, Upasham S, Rice P, Greyling CF, Prasad S. Sweat Based‐multiplexed Detection of NPY‐Cortisol for Disease Diagnostics and Stress Management. ELECTROANAL 2021. [DOI: 10.1002/elan.202100083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Sayali Upasham
- Department of Bioengineering University of Texas at Dallas Richardson TX-75080 USA
| | - Paul Rice
- Department of Bioengineering University of Texas at Dallas Richardson TX-75080 USA
| | | | - Shalini Prasad
- Department of Bioengineering University of Texas at Dallas Richardson TX-75080 USA
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12
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Caruso G, Giammanco A, Virruso R, Fasciana T. Current and Future Trends in the Laboratory Diagnosis of Sexually Transmitted Infections. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:1038. [PMID: 33503917 PMCID: PMC7908473 DOI: 10.3390/ijerph18031038] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 12/18/2022]
Abstract
Sexually transmitted infections (STIs) continue to exert a considerable public health and social burden globally, particularly for developing countries. Due to the high prevalence of asymptomatic infections and the limitations of symptom-based (syndromic) diagnosis, confirmation of infection using laboratory tools is essential to choose the most appropriate course of treatment and to screen at-risk groups. Numerous laboratory tests and platforms have been developed for gonorrhea, chlamydia, syphilis, trichomoniasis, genital mycoplasmas, herpesviruses, and human papillomavirus. Point-of-care testing is now a possibility, and microfluidic and high-throughput omics technologies promise to revolutionize the diagnosis of STIs. The scope of this paper is to provide an updated overview of the current laboratory diagnostic tools for these infections, highlighting their advantages, limitations, and point-of-care adaptability. The diagnostic applicability of the latest molecular and biochemical approaches is also discussed.
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Affiliation(s)
- Giorgia Caruso
- U.O.C. of Microbiology and Virology, ARNAS “Civico, Di Cristina and Benfratelli”, 90127 Palermo, Italy
| | - Anna Giammanco
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Via del Vespro 133, 90127 Palermo, Italy; (A.G.); (T.F.)
| | - Roberta Virruso
- U.O.C. of Microbiology, Virology and Parassitology, A.O.U.P. “Paolo Giaccone”, 90127 Palermo, Italy;
| | - Teresa Fasciana
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties, University of Palermo, Via del Vespro 133, 90127 Palermo, Italy; (A.G.); (T.F.)
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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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14
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Bian S, Zhu B, Rong G, Sawan M. Towards wearable and implantable continuous drug monitoring: A review. J Pharm Anal 2020; 11:1-14. [PMID: 32837742 PMCID: PMC7428759 DOI: 10.1016/j.jpha.2020.08.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/05/2020] [Accepted: 08/05/2020] [Indexed: 02/06/2023] Open
Abstract
Continuous drug monitoring is a promising alternative to current therapeutic drug monitoring strategies and has a strong potential to reshape our understanding of pharmacokinetic variability and to improve individualised therapy. This review highlights recent advances in biosensing technologies that support continuous drug monitoring in real time. We focus primarily on aptamer-based biosensors, wearable and implantable devices. Emphasis is given to the approaches employed in constructing biosensors. We pay attention to sensors' biocompatibility, calibration performance, long-term characteristics stability and measurement quality. Last, we discuss the current challenges and issues to be addressed in continuous drug monitoring to make it a promising, future tool for individualised therapy. The ongoing efforts are expected to result in fully integrated implantable drug biosensing technology. Thus, we may anticipate an era of advanced healthcare in which wearable and implantable biochips will automatically adjust drug dosing in response to patient health conditions, thus enabling the management of diseases and enhancing individualised therapy.
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Affiliation(s)
| | | | | | - Mohamad Sawan
- Corresponding author. Cutting-Edge Net of Biomedical Research and Innovation (CenBRAIN), 18, Shilongshan Road, Cloud Town, Xihu District, Hangzhou, Zhejiang, 310024, China.
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15
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Yavas O, Svedendahl M, Quidant R. Unravelling the Role of Electric and Magnetic Dipoles in Biosensing with Si Nanoresonators. ACS NANO 2019; 13:4582-4588. [PMID: 30920797 DOI: 10.1021/acsnano.9b00572] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
High refractive index dielectric nanoresonators are attracting much attention due to their ability to control both electric and magnetic components of light. Due to the combination of confined modes with reduced absorption losses, they have recently been proposed as an alternative to nanoplasmonic biosensors. In this context, we study the use of semirandom silicon nanocylinder arrays, fabricated with simple and scalable colloidal lithography for the efficient and reliable detection of biomolecules in biological samples. Interestingly, electric and magnetic dipole resonances are associated with two different transduction mechanisms: extinction decrease and resonance red shift. By contrasting both observables, we identify clear advantages in tracking changes in the extinction magnitude. Our data demonstrate that, despite its simplicity, the proposed platform is able to detect prostate-specific antigen in human serum with limits of detection meeting clinical needs.
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Affiliation(s)
- Ozlem Yavas
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology , 08860 Castelldefels (Barcelona), Spain
| | - Mikael Svedendahl
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology , 08860 Castelldefels (Barcelona), Spain
- Department of Applied Physics , KTH Royal Institute of Technology , 106 91 Stockholm , Sweden
| | - Romain Quidant
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology , 08860 Castelldefels (Barcelona), Spain
- ICREA - Institució Catalana de Recerca i Estudis Avançats , 08010 Barcelona , Spain
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16
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State-of-the-Art of Profiling Immune Contexture in the Era of Multiplexed Staining and Digital Analysis to Study Paraffin Tumor Tissues. Cancers (Basel) 2019; 11:cancers11020247. [PMID: 30791580 PMCID: PMC6406364 DOI: 10.3390/cancers11020247] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 02/12/2019] [Accepted: 02/14/2019] [Indexed: 02/07/2023] Open
Abstract
Multiplexed platforms for multiple epitope detection have emerged in the last years as very powerful tools to study tumor tissues. These revolutionary technologies provide important visual techniques for tumor examination in formalin-fixed paraffin-embedded specimens to improve the understanding of the tumor microenvironment, promote new treatment discoveries, aid in cancer prevention, as well as allowing translational studies to be carried out. The aim of this review is to highlight the more recent methodologies that use multiplexed staining to study simultaneous protein identification in formalin-fixed paraffin-embedded tumor tissues for immune profiling, clinical research, and potential translational analysis. New multiplexed methodologies, which permit the identification of several proteins at the same time in one single tissue section, have been developed in recent years with the ability to study different cell populations, cells by cells, and their spatial distribution in different tumor specimens including whole sections, core needle biopsies, and tissue microarrays. Multiplexed technologies associated with image analysis software can be performed with a high-quality throughput assay to study cancer specimens and are important tools for new discoveries. The different multiplexed technologies described in this review have shown their utility in the study of cancer tissues and their advantages for translational research studies and application in cancer prevention and treatments.
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17
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Zhang K, Gan N, Shen Z, Cao J, Hu F, Li T. Microchip electrophoresis based aptasensor for multiplexed detection of antibiotics in foods via a stir-bar assisted multi-arm junctions recycling for signal amplification. Biosens Bioelectron 2019; 130:139-146. [PMID: 30735947 DOI: 10.1016/j.bios.2019.01.044] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/04/2019] [Accepted: 01/18/2019] [Indexed: 12/27/2022]
Abstract
Microchip electrophoresis (MCE) was a good available method for high-throughput and rapid detecting chemical pollutants in food samples. However, many of the reported MCE assays involve complex design of microchip, laborious operation and poor universality which limited its promotion in multiple antibiotics' detection. Herein, a multiplexed aptasensor was developed based on a universal double-T type microchip to one-step and simultaneously detect several antibiotics within 3 min using chloramphenicol (CAP) and kanamycin (Kana) as representatives. Besides, a novel stir-bar assisted DNA multi-arm junctions recycling (MAJR) strategy was designed for transducing and amplifying the signal. The brief detection mechanism was as following: the added CAP and Kana can specifically react with their aptamer probes on the stir-bar and produce different single-stranded DNA primer, respectively. Afterwards, the primers can trigger MAJR to form a lot of three- and four-arm DNA junctions corresponding to different targets. The DNA multi-arm junctions can be easily separated and detected by MCE for quantification. Moreover, the stir-bar can facilitate phase separation and obviously eliminate matrix interference in food. The assay was successfully applied in milk and fish samples, showing excellent selectivity and sensitivity with a detection limits of 0.52 pg mL-1 CAP and 0.41 pg mL-1 Kana (S/N = 3). Thus, the assay holds a great potential application for screening of antibiotics in food.
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Affiliation(s)
- Kai Zhang
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, China; Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo 315211, China
| | - Ning Gan
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, China.
| | - Zhipeng Shen
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
| | - Jinxuan Cao
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo 315211, China.
| | - Futao Hu
- Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, Ningbo University, Ningbo 315211, China
| | - Tianhua Li
- Faculty of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
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18
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Cancer Diagnostics and Therapeutics. Bioanalysis 2019. [DOI: 10.1007/978-3-030-01775-0_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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19
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McConnell G, Mabbott S, Kanibolotsky AL, Skabara PJ, Graham D, Burley GA, Laurand N. Organic Semiconductor Laser Platform for the Detection of DNA by AgNP Plasmonic Enhancement. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:14766-14773. [PMID: 30227713 DOI: 10.1021/acs.langmuir.8b01313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Organic semiconductor lasers are a sensitive biosensing platform that respond to specific biomolecule binding events. So far, such biosensors have utilized protein-based interactions for surface functionalization but a nucleic acid-based strategy would considerably widen their utility as a general biodiagnostic platform. This manuscript reports two important advances for DNA-based sensing using an organic semiconductor (OS) distributed feedback (DFB) laser. First, the immobilization of alkyne-tagged 12/18-mer oligodeoxyribonucleotide (ODN) probes by Cu-catalyzed azide alkyne cycloaddition (CuAAC) or "click-chemistry" onto an 80 nm thick OS laser film modified with an azide-presenting polyelectrolyte monolayer is presented. Second, sequence-selective binding to these immobilized probes with complementary ODN-functionalized silver nanoparticles, is detected. As binding occurs, the nanoparticles increase the optical losses of the laser mode through plasmonic scattering and absorption, and this causes a rise in the threshold pump energy required for laser action that is proportional to the analyte concentration. By monitoring this threshold, detection of the complementary ODN target down to 11.5 pM is achieved. This complementary binding on the laser surface is independently confirmed through surface-enhanced Raman spectroscopy (SERS).
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Affiliation(s)
- G McConnell
- Institute of Photonics, Department of Physics , University of Strathclyde , Glasgow G12 8QQ , U.K
- Biomedical Engineering , University of Strathclyde , Glasgow G12 8QQ , U.K
| | - S Mabbott
- WestCHEM, Department of Pure and Applied Chemistry , University of Strathclyde , Glasgow G12 8QQ , U.K
| | - A L Kanibolotsky
- WestCHEM, School of Chemistry , University of Glasgow , Glasgow G12 8QQ , U.K
- Institute of Physical-Organic and Coal Chemistry , The National Academy of Sciences of Ukraine , 02160 Kyiv , Ukraine
| | - P J Skabara
- WestCHEM, School of Chemistry , University of Glasgow , Glasgow G12 8QQ , U.K
| | - D Graham
- WestCHEM, Department of Pure and Applied Chemistry , University of Strathclyde , Glasgow G12 8QQ , U.K
| | - G A Burley
- WestCHEM, Department of Pure and Applied Chemistry , University of Strathclyde , Glasgow G12 8QQ , U.K
| | - N Laurand
- Institute of Photonics, Department of Physics , University of Strathclyde , Glasgow G12 8QQ , U.K
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20
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Fothergill SM, Joyce C, Xie F. Metal enhanced fluorescence biosensing: from ultra-violet towards second near-infrared window. NANOSCALE 2018; 10:20914-20929. [PMID: 30324956 DOI: 10.1039/c8nr06156d] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
To increase disease survival rates, there is a vital need for diagnosis at very preliminary stages. Then, low concentrations of biomarkers are present which must be effectively detected and quantified for reliable diagnosis. Fluorescent biosensing is commonly enabled through the labelling of these biomarkers with nanostructures and fluorophores. Metal Enhanced Fluorescence (MEF) is a phenomenon whereby the intensity of a fluorescent biosensor signal can be considerably enhanced by placing a metallic nanostructure and fluorophore in close proximity. Importantly, this allows for an even lower detection limit and thus earlier diagnosis. In recent years, extraordinary efforts have been made in the understanding of how the chemical and physical properties of nanomaterials may be exploited advantageously. Via precise nanoscale engineering, it is possible to optimize the optical properties of plasmonic nanomaterials, which now need to be refined and applied in diagnostics. Through MEF, the intensity of this signal can be related in direct proportion to analyte concentration, allowing for diagnosis of disease at an earlier stage than previously. This review paper outlines the potential and recent progress of applied MEF biosensors, highlighting their substantial clinical potential. MEF biosensors are presented both upon assay-based platforms and in solution, with comments on the various metallic nanoparticle morphologies available. This is explored across various emission wavelengths from ultra-violet to the second near infrared window (NIR-II), emphasising their wide applicability. Further to this, the importance of near infrared (NIR-I and NIR-II) biosensing is made clear as it allows for higher penetration in biological media. Finally, by developing multiplexing techniques, multiple and simultaneous analyses of analytes can be achieved. Through the incorporation of metal enhanced fluorescence into biosensing, it will be possible to diagnose disease more rapidly and more reliably than before, with the potential to save countless lives.
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Affiliation(s)
- Sarah Madeline Fothergill
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK.
| | - Caoimhe Joyce
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK.
| | - Fang Xie
- Department of Materials and London Centre for Nanotechnology, Imperial College London, Exhibition Road, London SW7 2AZ, UK.
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21
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Yavas O, Aćimović SS, Garcia-Guirado J, Berthelot J, Dobosz P, Sanz V, Quidant R. Self-Calibrating On-Chip Localized Surface Plasmon Resonance Sensing for Quantitative and Multiplexed Detection of Cancer Markers in Human Serum. ACS Sens 2018; 3:1376-1384. [PMID: 29947221 DOI: 10.1021/acssensors.8b00305] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The need for point-of-care devices able to detect diseases early and monitor their status, out of a lab environment, has stimulated the development of compact biosensing configurations. Whereas localized surface plasmon resonance (LSPR) sensing integrated into a state-of-the-art microfluidic chip stands as a promising approach to meet this demand, its implementation into an operating sensing platform capable of quantitatively detecting a set of molecular biomarkers in an unknown biological sample is only in its infancy. Here, we present an on-chip LSPR sensor capable of performing automatic, quantitative, and multiplexed screening of biomarkers. We demonstrate its versatility by programming it to detect and quantify in human serum four relevant human serum protein markers associated with breast cancer.
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Affiliation(s)
- Ozlem Yavas
- ICFO-Institut de Ciéncies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Srdjan S. Aćimović
- ICFO-Institut de Ciéncies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Jose Garcia-Guirado
- ICFO-Institut de Ciéncies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Johann Berthelot
- ICFO-Institut de Ciéncies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Paulina Dobosz
- ICFO-Institut de Ciéncies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Vanesa Sanz
- ICFO-Institut de Ciéncies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
| | - Romain Quidant
- ICFO-Institut de Ciéncies Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
- ICREA-Institució Catalana de Recerca i Estudis Avançats, 08010 Barcelona, Spain
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22
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Toskin I, Blondeel K, Peeling RW, Deal C, Kiarie J. Advancing point of care diagnostics for the control and prevention of STIs: the way forward. Sex Transm Infect 2018; 93:S81-S88. [PMID: 29223966 DOI: 10.1136/sextrans-2016-053073] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/06/2017] [Accepted: 06/23/2017] [Indexed: 01/01/2023] Open
Abstract
WHO recognises the global impact of sexually transmitted infections (STIs) on global public health and individual sexual and reproductive health and well-being. As a component of the WHO Global Health Sector Strategy for the control and prevention of STIs, there has been a growing recognition of the importance of integrating point-of-care tests (POCTs) into overall strategic planning. The process of integrating STI POCTs, in addition to providing a definitive diagnosis and appropriate treatment in a single visit, also includes innovative delivery options, such as on-site delivery, community-based testing (including screening), as well as self-testing at home after purchase of a test online or over-the-counter. WHO organised two technical consultations in May 2014 and July 2015. This article summarises the discussions of the meeting participants on advancing the use of POCTs to control and prevent STIs. The following priorities were identified: the need for pathogens' target discovery; encouragement of multiplexing, miniaturisation, simplification and connectivity; promotion of standardisation of evaluation of new diagnostic platforms across all stages of the evaluation pipeline; the need for an investment case, modelling and scenarios to ensure buy-in among key stakeholders, including developers and the private sector; the need for norms and standards, including guidelines, to support introduction of STI POCTs in programmes; anticipating potential tensions between different parties at the implementation level; and leveraging on the global initiative, Sustainable Development Goals (SDGs)/global health sector STI strategy, to sustain investment in STI POCT programmes. There is a rich pipeline of diagnostic products, but some have stalled in development. An approach to accelerate the evaluation of new diagnostics is to set up a competent network of evaluation sites ahead of time, harmonise regulatory approval processes with development of models to estimate cost-effectiveness, informed by better STI data. This should result in accelerating policy development. Although it may be some time before good POCTs can be widely implemented in low resource settings, it is important to be a catalyst for continued development and use of these essential tools as an integral part of both the WHO Global Health Sector Strategy and the agenda for 2030.
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Affiliation(s)
- Igor Toskin
- Department of Reproductive Health and Research, World Health Organization, Geneva, Switzerland
| | - Karel Blondeel
- Department of Reproductive Health and Research, World Health Organization, Geneva, Switzerland.,Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Rosanna W Peeling
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK
| | - Carolyn Deal
- Division of Microbiology and Infectious Diseases, National Institute of Allergy and Infectious Diseases, Rockville, USA
| | - James Kiarie
- Department of Reproductive Health and Research, World Health Organization, Geneva, Switzerland
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23
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Stephen L, Schwarz E, Guest PC. Multiplex Immunoassay Profiling of Serum in Psychiatric Disorders. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 974:149-156. [PMID: 28353231 DOI: 10.1007/978-3-319-52479-5_10] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Multiplex immunoassays allow for the rapid profiling of biomarker proteins in biological fluids, using less sample and labour than in single immunoassays. This chapter details the methods to develop and manufacture a 5-plex immunoassay for the Luminex® platform. Although assay development is not included here, the same methods can be used to covalently couple antibodies to the Luminex beads and to label antibodies for the screening of sandwich pairs, if needed. An example will be given for the analysis of five hormones (glucagon-like peptide 1, growth hormone, insulin, leptin and thyroid-stimulating hormone) in serum samples from schizophrenia patients and controls.
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Affiliation(s)
- Laurie Stephen
- Ampersand Biosciences, 3 Main Street, Saranac Lake, NY, USA.
| | - Emanuel Schwarz
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Paul C Guest
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Rua Monteiro Lobato 255 F/01, Cidade Universitária ZeferinoVaz, 13083-862, Campinas, Brazil
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24
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Bruch R, Kling A, Urban GA, Dincer C. Dry Film Photoresist-based Electrochemical Microfluidic Biosensor Platform: Device Fabrication, On-chip Assay Preparation, and System Operation. J Vis Exp 2017:56105. [PMID: 28994807 PMCID: PMC5752260 DOI: 10.3791/56105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
In recent years, biomarker diagnostics became an indispensable tool for the diagnosis of human disease, especially for the point-of-care diagnostics. An easy-to-use and low-cost sensor platform is highly desired to measure various types of analytes (e.g., biomarkers, hormones, and drugs) quantitatively and specifically. For this reason, dry film photoresist technology - enabling cheap, facile, and high-throughput fabrication - was used to manufacture the microfluidic biosensor presented here. Depending on the bioassay used afterwards, the versatile platform is capable of detecting various types of biomolecules. For the fabrication of the device, platinum electrodes are structured on a flexible polyimide (PI) foil in the only clean-room process step. The PI foil serves as a substrate for the electrodes, which are insulated with an epoxy-based photoresist. The microfluidic channel is subsequently generated by the development and lamination of dry film photoresist (DFR) foils onto the PI wafer. By using a hydrophobic stopping barrier in the channel, the channel is separated into two specific areas: an immobilization section for the enzyme-linked assay and an electrochemical measurement cell for the amperometric signal readout. The on-chip bioassay immobilization is performed by the adsorption of the biomolecules to the channel surface. The glucose oxidase enzyme is used as a transducer for electrochemical signal generation. In the presence of the substrate, glucose, hydrogen peroxide is produced, which is detected at the platinum working electrode. The stop-flow technique is applied to obtain signal amplification along with rapid detection. Different biomolecules can quantitatively be measured by means of the introduced microfluidic system, giving an indication of different types of diseases, or, in regard to therapeutic drug monitoring, facilitating a personalized therapy.
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Affiliation(s)
- Richard Bruch
- Department of Microsystems Engineering, University of Freiburg
| | - André Kling
- Department of Microsystems Engineering, University of Freiburg; Department of Biosystems Science and Engineering, ETH Zurich
| | - Gerald A Urban
- Department of Microsystems Engineering, University of Freiburg; Freiburg Materials Research Center, University of Freiburg
| | - Can Dincer
- Department of Microsystems Engineering, University of Freiburg; Freiburg Materials Research Center, University of Freiburg;
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25
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Malekzad H, Zangabad PS, Mirshekari H, Karimi M, Hamblin MR. Noble metal nanoparticles in biosensors: recent studies and applications. NANOTECHNOLOGY REVIEWS 2017; 6:301-329. [PMID: 29335674 PMCID: PMC5766271 DOI: 10.1515/ntrev-2016-0014] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The aim of this review is to cover advances in noble metal nanoparticle (MNP)-based biosensors and to outline the principles and main functions of MNPs in different classes of biosensors according to the transduction methods employed. The important biorecognition elements are enzymes, antibodies, aptamers, DNA sequences, and whole cells. The main readouts are electrochemical (amperometric and voltametric), optical (surface plasmon resonance, colorimetric, chemiluminescence, photoelectrochemical, etc.) and piezoelectric. MNPs have received attention for applications in biosensing due to their fascinating properties. These properties include a large surface area that enhances biorecognizers and receptor immobilization, good ability for reaction catalysis and electron transfer, and good biocompatibility. MNPs can be used alone and in combination with other classes of nanostructures. MNP-based sensors can lead to significant signal amplification, higher sensitivity, and great improvements in the detection and quantification of biomolecules and different ions. Some recent examples of biomolecular sensors using MNPs are given, and the effects of structure, shape, and other physical properties of noble MNPs and nanohybrids in biosensor performance are discussed.
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Affiliation(s)
- Hedieh Malekzad
- Faculty of Chemistry, Kharazmi University, South Mofatteh Ave, P.O. Box 15719-14911, Tehran, Iran; and Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
| | - Parham Sahandi Zangabad
- Research Center for Pharmaceutical Nanotechnology (RCPN), Tabriz University of Medical Science (TUOMS), Tabriz, Iran; Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran; and Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11365-9466, 14588 Tehran, Iran
| | - Hamed Mirshekari
- Advanced Nanobiotechnology and Nanomedicine Research Group (ANNRG), Iran University of Medical Sciences, Tehran, Iran
| | - Mahdi Karimi
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Hemmat Exp. Way, P.O. Box 14665-354, Tehran, Iran
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA; and Division of Health Sciences and Technology, Harvard-MIT, Cambridge, MA 02139, USA
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26
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Dincer C, Bruch R, Kling A, Dittrich PS, Urban GA. Multiplexed Point-of-Care Testing - xPOCT. Trends Biotechnol 2017; 35:728-742. [PMID: 28456344 PMCID: PMC5538621 DOI: 10.1016/j.tibtech.2017.03.013] [Citation(s) in RCA: 300] [Impact Index Per Article: 42.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 03/24/2017] [Accepted: 03/28/2017] [Indexed: 12/13/2022]
Abstract
Multiplexed point-of-care testing (xPOCT), which is simultaneous on-site detection of different analytes from a single specimen, has recently gained increasing importance for clinical diagnostics, with emerging applications in resource-limited settings (such as in the developing world, in doctors’ offices, or directly at home). Nevertheless, only single-analyte approaches are typically considered as the major paradigm in many reviews of point-of-care testing. Here, we comprehensively review the present diagnostic systems and techniques for xPOCT applications. Different multiplexing technologies (e.g., bead- or array-based systems) are considered along with their detection methods (e.g., electrochemical or optical). We also address the unmet needs and challenges of xPOCT. Finally, we critically summarize the in-field applicability and the future perspectives of the presented approaches. Simultaneous on-site measurement of different substances from a single sample, called multiplexed point-of-care testing, has recently become more and more important for in vitro diagnostics. The major aim for the development of xPOCT systems is the smart combination of a high-performing device with a low system complexity. Thus, the on-site tests are realized in a short time by non-experts and ensure comparable results with clinical and central laboratory findings. A multiplexing capability of up to 10 analytes has been sufficient for many recent xPOCT applications. The future of xPOCT devices will be driven by novel biotechnologies (e.g., aptamers) or targets (e.g., circulating RNAs or tumor cells, exosomes, and miRNAs), as well as applications like personalized medicine, homecare monitoring, and wearables.
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Affiliation(s)
- Can Dincer
- University of Freiburg, Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; University of Freiburg, Freiburg Materials Research Center (FMF), Stefan-Meier-Straße 21, 79104 Freiburg, Germany.
| | - Richard Bruch
- University of Freiburg, Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, Georges-Koehler-Allee 103, 79110 Freiburg, Germany
| | - André Kling
- ETH Zurich, Department of Biosystems Science and Engineering, Bioanalytics Group, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Petra S Dittrich
- ETH Zurich, Department of Biosystems Science and Engineering, Bioanalytics Group, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Gerald A Urban
- University of Freiburg, Department of Microsystems Engineering (IMTEK), Laboratory for Sensors, Georges-Koehler-Allee 103, 79110 Freiburg, Germany; University of Freiburg, Freiburg Materials Research Center (FMF), Stefan-Meier-Straße 21, 79104 Freiburg, Germany
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27
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Vial S, Berrahal Y, Prado M, Wenger J. Single-Step DNA Detection Assay Monitoring Dual-Color Light Scattering from Individual Metal Nanoparticle Aggregates. ACS Sens 2017; 2:251-256. [PMID: 28261666 PMCID: PMC5329769 DOI: 10.1021/acssensors.6b00737] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 01/23/2017] [Indexed: 02/07/2023]
Abstract
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Efficiently detecting
DNA sequences within a limited time is vital
for disease screening and public health monitoring. This calls for
a new method that combines high sensitivity, fast read-out time, and
easy manipulation of the sample, avoiding the extensive steps of DNA
amplification, purification, or grafting to a surface. Here, we introduce
photon cross-correlation spectroscopy as a new method for specific
DNA sensing with high sensitivity in a single-step homogeneous solution
phase. Our approach is based on confocal dual-color illumination and
detection of the scattering intensities from individual silver nanoparticles
and gold nanorods. In the absence of the target DNA, the nanoparticles
move independently and their respective scattering signals are uncorrelated.
In the presence of the target DNA, the probe-functionalized gold and
silver nanoparticles assemble via DNA hybridization with the target,
giving rise to temporal coincidence between the signals scattered
by each nanoparticle. The degree of coincidence accurately quantifies
the amount of target DNA. To demonstrate the efficiency of our technique,
we detect a specific DNA sequence of sesame, an allergenic food ingredient,
for a range of concentration from 5 pM to 1.5 nM with a limit of detection
of 1 pM. Our method is sensitive and specific enough to detect single
nucleotide deletion and mismatch. With the dual-color scattering signals
being much brighter than fluorescence-based analogs, the analysis
is fast, quantitative, and simple to operate, making it valuable for
biosensing applications.
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Affiliation(s)
- Stéphanie Vial
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France
| | - Youri Berrahal
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France
| | - Marta Prado
- International Iberian Nanotechnology Laboratory (INL) Avenida Mestre José Veiga, 4715-310, Braga, Portugal
| | - Jérôme Wenger
- Aix Marseille Univ, CNRS, Centrale Marseille, Institut Fresnel, Marseille, France
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28
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Vial S, Wenger J. Single-step homogeneous immunoassay for detecting prostate-specific antigen using dual-color light scattering of metal nanoparticles. Analyst 2017; 142:3484-3491. [DOI: 10.1039/c7an01066d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Conventional sandwich-type immunoassays are widely used for protein biomarker detection, yet their workflows are challenged by the need for multiple incubation steps separated by washing cycles.
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Affiliation(s)
- Stéphanie Vial
- Aix-Marseille Univ
- CNRS
- Centrale Marseille
- Institut Fresnel
- Marseille
| | - Jérôme Wenger
- Aix-Marseille Univ
- CNRS
- Centrale Marseille
- Institut Fresnel
- Marseille
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29
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Punter-Villagrasa J, Colomer-Farrarons J, del Campo FJ, Miribel-Català P, Kitsara M, Aller M, Guirado G, Ruiz J, Lakard B, Hihn JY. Electrochemical DC Techniques. Glucose Monitoring and Multi-parametric Detection. Bioanalysis 2017. [DOI: 10.1007/978-3-319-64801-9_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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30
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Introduction to Electrochemical Point-of-Care Devices. Bioanalysis 2017. [DOI: 10.1007/978-3-319-64801-9_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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31
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Abstract
Multiplex immunoassays allow for the rapid profiling of biomarker proteins in biological fluids, using less sample and labor than single immunoassays. This chapter details the methods to develop and manufacture multiplex assays for the Luminex® platform. Although assay development is not included here, the same methods can be used to covalently couple antibodies to the Luminex beads and to label antibodies for the screening of sandwich pairs, if needed. The assay optimization, detection of cross-reactivity, and minimizing antibody interactions and matrix interferences will be addressed.
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Affiliation(s)
- Laurie Stephen
- Ampersand Biosciences, 3 Main Street, Saranac Lake, NY, USA.
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32
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Kling A, Chatelle C, Armbrecht L, Qelibari E, Kieninger J, Dincer C, Weber W, Urban G. Multianalyte Antibiotic Detection on an Electrochemical Microfluidic Platform. Anal Chem 2016; 88:10036-10043. [DOI: 10.1021/acs.analchem.6b02294] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- André Kling
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
| | - Claire Chatelle
- University of Freiburg, Faculty of Biology and Centre
for Biological Signalling Studies, Schänzlestraße 18, DE-79104 Freiburg, Germany
| | - Lucas Armbrecht
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
| | - Edvina Qelibari
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
| | - Jochen Kieninger
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
| | - Can Dincer
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
- University of Freiburg, Freiburg Materials Research
Center, Stefan-Meier-Straße
21, DE-79104 Freiburg, Germany
| | - Wilfried Weber
- University of Freiburg, Faculty of Biology and Centre
for Biological Signalling Studies, Schänzlestraße 18, DE-79104 Freiburg, Germany
| | - Gerald Urban
- University of Freiburg, Department of Microsystems
Engineering, Georges-Koehler-Allee
103, DE-79110 Freiburg, Germany
- University of Freiburg, Freiburg Materials Research
Center, Stefan-Meier-Straße
21, DE-79104 Freiburg, Germany
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33
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Hahm JI. Fundamental Properties of One-Dimensional Zinc Oxide Nanomaterials and Implementations in Various Detection Modes of Enhanced Biosensing. Annu Rev Phys Chem 2016. [PMID: 27215822 DOI: 10.1146/annurev‐physchem‐031215‐010949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Recent bioapplications of one-dimensional (1D) zinc oxide (ZnO) nanomaterials, despite the short development period, have shown promising signs as new sensors and assay platforms offering exquisite biomolecular sensitivity and selectivity. The incorporation of 1D ZnO nanomaterials has proven beneficial to various modes of biodetection owing to their inherent properties. The more widely explored electrochemical and electrical approaches tend to capitalize on the reduced physical dimensionality, yielding a high surface-to-volume ratio, as well as on the electrical properties of ZnO. The newer development of the use of 1D ZnO nanomaterials in fluorescence-based biodetection exploits the innate optical property of their high anisotropy. This review considers stimulating research advances made to identify and understand fundamental properties of 1D ZnO nanomaterials, and examines various biosensing modes utilizing them, while focusing on the unique optical properties of individual and ensembles of 1D ZnO nanomaterials specifically pertaining to their bio-optical applications in simple and complex fluorescence assays.
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Affiliation(s)
- Jong-In Hahm
- Department of Chemistry, Georgetown University, Washington, DC 20057;
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34
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Hahm JI. Fundamental Properties of One-Dimensional Zinc Oxide Nanomaterials and Implementations in Various Detection Modes of Enhanced Biosensing. Annu Rev Phys Chem 2016; 67:691-717. [PMID: 27215822 PMCID: PMC4894344 DOI: 10.1146/annurev-physchem-031215-010949] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Recent bioapplications of one-dimensional (1D) zinc oxide (ZnO) nanomaterials, despite the short development period, have shown promising signs as new sensors and assay platforms offering exquisite biomolecular sensitivity and selectivity. The incorporation of 1D ZnO nanomaterials has proven beneficial to various modes of biodetection owing to their inherent properties. The more widely explored electrochemical and electrical approaches tend to capitalize on the reduced physical dimensionality, yielding a high surface-to-volume ratio, as well as on the electrical properties of ZnO. The newer development of the use of 1D ZnO nanomaterials in fluorescence-based biodetection exploits the innate optical property of their high anisotropy. This review considers stimulating research advances made to identify and understand fundamental properties of 1D ZnO nanomaterials, and examines various biosensing modes utilizing them, while focusing on the unique optical properties of individual and ensembles of 1D ZnO nanomaterials specifically pertaining to their bio-optical applications in simple and complex fluorescence assays.
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Affiliation(s)
- Jong-In Hahm
- Department of Chemistry, Georgetown University, Washington, DC 20057;
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35
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Luppa PB, Bietenbeck A, Beaudoin C, Giannetti A. Clinically relevant analytical techniques, organizational concepts for application and future perspectives of point-of-care testing. Biotechnol Adv 2016; 34:139-60. [DOI: 10.1016/j.biotechadv.2016.01.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 01/15/2016] [Accepted: 01/17/2016] [Indexed: 01/19/2023]
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36
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Gilbert M, Livingston R, Felberg J, Bishop JJ. Multiplex single molecule counting technology used to generate interleukin 4, interleukin 6, and interleukin 10 reference limits. Anal Biochem 2016; 503:11-20. [PMID: 27019152 DOI: 10.1016/j.ab.2016.03.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/10/2016] [Accepted: 03/15/2016] [Indexed: 10/22/2022]
Abstract
Detecting biomarkers at pg/ml concentrations or below is, in many situations, critical for quantifying levels in healthy individuals as well as the changes that can occur in the progression of disease states. The ability to detect multiple biomarkers from the same sample allows for better diagnoses, more efficient testing, and lower volumes of sample required. Based on single molecule counting technology, a multiplex instrument was designed and built that is capable of detecting cytokines and other low-abundance proteins at sub-pg/ml quantities in human plasma samples. The multiplex single molecule counting instrument was used to generate 95% reference limits for interleukin 4 (IL-4, <0.61 pg/ml), interleukin 6 (IL-6, <6.53 pg/ml), and interleukin 10 (IL-10, <1.08 pg/ml) from 100 healthy human donor plasma samples, with more than 90% of IL-4 concentrations and 100% of IL-6 and IL-10 concentrations above the limit of detection.
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37
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Thermodynamic measures of cancer: Gibbs free energy and entropy of protein-protein interactions. J Biol Phys 2016; 42:339-50. [PMID: 27012959 DOI: 10.1007/s10867-016-9410-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 01/27/2016] [Indexed: 01/21/2023] Open
Abstract
Thermodynamics is an important driving factor for chemical processes and for life. Earlier work has shown that each cancer has its own molecular signaling network that supports its life cycle and that different cancers have different thermodynamic entropies characterizing their signaling networks. The respective thermodynamic entropies correlate with 5-year survival for each cancer. We now show that by overlaying mRNA transcription data from a specific tumor type onto a human protein-protein interaction network, we can derive the Gibbs free energy for the specific cancer. The Gibbs free energy correlates with 5-year survival (Pearson correlation of -0.7181, p value of 0.0294). Using an expression relating entropy and Gibbs free energy to enthalpy, we derive an empirical relation for cancer network enthalpy. Combining this with previously published results, we now show a complete set of extensive thermodynamic properties and cancer type with 5-year survival.
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38
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Udukala DN, Wang H, Wendel SO, Malalasekera AP, Samarakoon TN, Yapa AS, Abayaweera G, Basel MT, Maynez P, Ortega R, Toledo Y, Bossmann L, Robinson C, Janik KE, Koper OB, Li P, Motamedi M, Higgins DA, Gadbury G, Zhu G, Troyer DL, Bossmann SH. Early breast cancer screening using iron/iron oxide-based nanoplatforms with sub-femtomolar limits of detection. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2016; 7:364-373. [PMID: 27335730 PMCID: PMC4901534 DOI: 10.3762/bjnano.7.33] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 02/17/2016] [Indexed: 06/06/2023]
Abstract
Proteases, including matrix metalloproteinases (MMPs), tissue serine proteases, and cathepsins (CTS) exhibit numerous functions in tumor biology. Solid tumors are characterized by changes in protease expression levels by tumor and surrounding tissue. Therefore, monitoring protease levels in tissue samples and liquid biopsies is a vital strategy for early cancer detection. Water-dispersable Fe/Fe3O4-core/shell based nanoplatforms for protease detection are capable of detecting protease activity down to sub-femtomolar limits of detection. They feature one dye (tetrakis(carboxyphenyl)porphyrin (TCPP)) that is tethered to the central nanoparticle by means of a protease-cleavable consensus sequence and a second dye (Cy 5.5) that is directly linked. Based on the protease activities of urokinase plasminogen activator (uPA), MMPs 1, 2, 3, 7, 9, and 13, as well as CTS B and L, human breast cancer can be detected at stage I by means of a simple serum test. By monitoring CTS B and L stage 0 detection may be achieved. This initial study, comprised of 46 breast cancer patients and 20 apparently healthy human subjects, demonstrates the feasibility of protease-activity-based liquid biopsies for early cancer diagnosis.
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Affiliation(s)
- Dinusha N Udukala
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Hongwang Wang
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Sebastian O Wendel
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Aruni P Malalasekera
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Thilani N Samarakoon
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Asanka S Yapa
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Gayani Abayaweera
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Matthew T Basel
- Kansas State University, Department of Anatomy & Physiology, 228 Coles Hall, Manhattan, KS, USA
| | - Pamela Maynez
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Raquel Ortega
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Yubisela Toledo
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Leonie Bossmann
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Colette Robinson
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Katharine E Janik
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Olga B Koper
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Ping Li
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Massoud Motamedi
- The University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, USA
| | - Daniel A Higgins
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
| | - Gary Gadbury
- Kansas State University, Department of Statistics, 101 Dickens Hall, Manhattan, KS, USA
| | - Gaohong Zhu
- The First Affiliated Hospital of Kunming Medical University, Department of Nuclear Medicine, 295 Xichang Road, Kunming, Yunnan, PR China
| | - Deryl L Troyer
- Kansas State University, Department of Anatomy & Physiology, 228 Coles Hall, Manhattan, KS, USA
| | - Stefan H Bossmann
- Kansas State University, Department of Chemistry, 213 CBC Building, Manhattan, KS, USA
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39
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Dincer C, Kling A, Chatelle C, Armbrecht L, Kieninger J, Weber W, Urban GA. Designed miniaturization of microfluidic biosensor platforms using the stop-flow technique. Analyst 2016; 141:6073-6079. [DOI: 10.1039/c6an01330a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Here, we present a novel approach to increase the degree of miniaturization as well as the sensitivity of biosensor platforms by the optimization of microfluidic stop-flow techniques independent of the applied detection technique (e.g. electrochemical or optical).
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Affiliation(s)
- C. Dincer
- Laboratory for Sensors
- Department of Microsystems Engineering - IMTEK
- University of Freiburg
- Germany
- Freiburg Materials Research Center - FMF
| | - A. Kling
- Laboratory for Sensors
- Department of Microsystems Engineering - IMTEK
- University of Freiburg
- Germany
| | - C. Chatelle
- Centre for Biological Signalling Studies - BIOSS
- Germany
- Faculty of Biology
- University of Freiburg
- Germany
| | - L. Armbrecht
- Laboratory for Sensors
- Department of Microsystems Engineering - IMTEK
- University of Freiburg
- Germany
| | - J. Kieninger
- Laboratory for Sensors
- Department of Microsystems Engineering - IMTEK
- University of Freiburg
- Germany
| | - W. Weber
- Centre for Biological Signalling Studies - BIOSS
- Germany
- Faculty of Biology
- University of Freiburg
- Germany
| | - G. A. Urban
- Laboratory for Sensors
- Department of Microsystems Engineering - IMTEK
- University of Freiburg
- Germany
- Freiburg Materials Research Center - FMF
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40
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Woolley CF, Hayes MA. Sensitive Detection of Cardiac Biomarkers Using a Magnetic Microbead Immunoassay. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2015; 7:8632-8639. [PMID: 26527562 PMCID: PMC4625556 DOI: 10.1039/c5ay01071c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
To achieve improved sensitivity in cardiac biomarker detection, a batch incubation magnetic microbead immunoassay was developed and tested on three separate human protein targets: myoglobin, heart-type fatty acid binding protein, and cardiac troponin I. A sandwich immunoassay was performed in a simple micro-centrifuge tube allowing full dispersal of the solid capture surface during incubations. Following magnetic bead capture and wash steps, samples were analyzed in the presence of a manipulated magnetic field utilizing a modified microscope slide and fluorescent inverted microscope to collect video data files. Analysis of the video data allowed for the quantitation of myoglobin, heart-type fatty acid binding protein and cardiac troponin I to levels of 360 aM, 67 fM, and 42 fM, respectively. Compared to the previous detection limit of 50 pM for myoglobin, this offers a five-fold improvement in sensitivity. This improvement in sensitivity and incorporation of additional markers, along with the small sample volumes required, suggest the potential of this platform for incorporation as a detection method in a total sample analysis device enabling multiplexed detection for the analysis of clinical samples.
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Affiliation(s)
- Christine F Woolley
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ, USA
| | - Mark A Hayes
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ, USA
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41
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Mross S, Pierrat S, Zimmermann T, Kraft M. Microfluidic enzymatic biosensing systems: A review. Biosens Bioelectron 2015; 70:376-91. [DOI: 10.1016/j.bios.2015.03.049] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Revised: 03/19/2015] [Accepted: 03/21/2015] [Indexed: 12/17/2022]
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42
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Krizkova S, Heger Z, Zalewska M, Moulick A, Adam V, Kizek R. Nanotechnologies in protein microarrays. Nanomedicine (Lond) 2015; 10:2743-55. [PMID: 26039143 DOI: 10.2217/nnm.15.81] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Protein microarray technology became an important research tool for study and detection of proteins, protein-protein interactions and a number of other applications. The utilization of nanoparticle-based materials and nanotechnology-based techniques for immobilization allows us not only to extend the surface for biomolecule immobilization resulting in enhanced substrate binding properties, decreased background signals and enhanced reporter systems for more sensitive assays. Generally in contemporarily developed microarray systems, multiple nanotechnology-based techniques are combined. In this review, applications of nanoparticles and nanotechnologies in creating protein microarrays, proteins immobilization and detection are summarized. We anticipate that advanced nanotechnologies can be exploited to expand promising fields of proteins identification, monitoring of protein-protein or drug-protein interactions, or proteins structures.
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Affiliation(s)
- Sona Krizkova
- Department of Chemistry & Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, European Union.,Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Zbynek Heger
- Department of Chemistry & Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, European Union.,Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Marta Zalewska
- Department of Biomedical & Environmental Analysis, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211, 50-556 Wroclaw, Poland, European Union
| | - Amitava Moulick
- Department of Chemistry & Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, European Union.,Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Vojtech Adam
- Department of Chemistry & Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, European Union.,Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
| | - Rene Kizek
- Department of Chemistry & Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00 Brno, Czech Republic, European Union.,Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00 Brno, Czech Republic, European Union
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