1
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Hülagü D, Tobias C, Dao R, Komarov P, Rurack K, Hodoroaba VD. Towards 3D determination of the surface roughness of core-shell microparticles as a routine quality control procedure by scanning electron microscopy. Sci Rep 2024; 14:17936. [PMID: 39095507 PMCID: PMC11297195 DOI: 10.1038/s41598-024-68797-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 07/29/2024] [Indexed: 08/04/2024] Open
Abstract
Recently, we have developed an algorithm to quantitatively evaluate the roughness of spherical microparticles using scanning electron microscopy (SEM) images. The algorithm calculates the root-mean-squared profile roughness (RMS-RQ) of a single particle by analyzing the particle's boundary. The information extracted from a single SEM image yields however only two-dimensional (2D) profile roughness data from the horizontal plane of a particle. The present study offers a practical procedure and the necessary software tools to gain quasi three-dimensional (3D) information from 2D particle contours recorded at different particle inclinations by tilting the sample (stage). This new approach was tested on a set of polystyrene core-iron oxide shell-silica shell particles as few micrometer-sized beads with different (tailored) surface roughness, providing the proof of principle that validates the applicability of the proposed method. SEM images of these particles were analyzed by the latest version of the developed algorithm, which allows to determine the analysis of particles in terms of roughness both within a batch and across the batches as a routine quality control procedure. A separate set of particles has been analyzed by atomic force microscopy (AFM) as a powerful complementary surface analysis technique integrated into SEM, and the roughness results have been compared.
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Affiliation(s)
- Deniz Hülagü
- Division 6.1 Surface and Thin Film Analysis, Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 44-46, 12203, Berlin, Germany.
| | - Charlie Tobias
- Division 1.9 Chemical and Optical Sensing, Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Straße 11, 12489, Berlin, Germany
| | - Radek Dao
- NenoVision S.R.O., Purkyňova 649/127, 612 00, Brno, Czech Republic
| | - Pavel Komarov
- NenoVision S.R.O., Purkyňova 649/127, 612 00, Brno, Czech Republic
| | - Knut Rurack
- Division 1.9 Chemical and Optical Sensing, Federal Institute for Materials Research and Testing (BAM), Richard-Willstätter-Straße 11, 12489, Berlin, Germany
| | - Vasile-Dan Hodoroaba
- Division 6.1 Surface and Thin Film Analysis, Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 44-46, 12203, Berlin, Germany.
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2
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Halabi EA, Gessner I, Yang KS, Kim JJ, Jana R, Peterson HM, Spitzberg JD, Weissleder R. Magnetic Silica-Coated Fluorescent Microspheres (MagSiGlow) for Simultaneous Detection of Tumor-Associated Proteins. Angew Chem Int Ed Engl 2024; 63:e202318870. [PMID: 38578432 DOI: 10.1002/anie.202318870] [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: 12/08/2023] [Revised: 03/29/2024] [Accepted: 04/03/2024] [Indexed: 04/06/2024]
Abstract
Multiplexed bead assays for solution-phase biosensing often encounter cross-over reactions during signal amplification steps, leading to unwanted false positive and high background signals. Current solutions involve complex custom-designed and costly equipment, limiting their application in simple laboratory setup. In this study, we introduce a straightforward protocol to adapt a multiplexed single-bead assay to standard fluorescence imaging plates, enabling the simultaneous analysis of thousands of reactions per plate. This approach focuses on the design and synthesis of bright fluorescent and magnetic microspheres (MagSiGlow) with multiple fluorescent wavelengths serving as unique detection markers. The imaging-based, single-bead assay, combined with a scripted algorithm, allows the detection, segmentation, and co-localization on average of 7500 microspheres per field of view across five imaging channels in less than one second. We demonstrate the effectiveness of this method with remarkable sensitivity at low protein detection limits (100 pg/mL). This technique showed over 85 % reduction in signal cross-over to the solution-based method after the concurrent detection of tumor-associated protein biomarkers. This approach holds the promise of substantially enhancing high throughput biosensing for multiple targets, seamlessly integrating with rapid image analysis algorithms.
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Affiliation(s)
- Elias A Halabi
- Center for Systems Biology Massachusetts General Hospital, Harvard Medial School, 185 Cambridge Street, CPZN 5206, 02114, Boston, MA, USA
| | - Isabel Gessner
- Center for Systems Biology Massachusetts General Hospital, Harvard Medial School, 185 Cambridge Street, CPZN 5206, 02114, Boston, MA, USA
| | - Katherine S Yang
- Center for Systems Biology Massachusetts General Hospital, Harvard Medial School, 185 Cambridge Street, CPZN 5206, 02114, Boston, MA, USA
| | - Jae-Jun Kim
- Center for Systems Biology Massachusetts General Hospital, Harvard Medial School, 185 Cambridge Street, CPZN 5206, 02114, Boston, MA, USA
| | - Rupsa Jana
- Center for Systems Biology Massachusetts General Hospital, Harvard Medial School, 185 Cambridge Street, CPZN 5206, 02114, Boston, MA, USA
- CaNCURE Cancer Nanomedicine Research Program Mugar Life Sciences Bldg, Department of Biochemistry, Northeastern University, 330 Huntington Ave #203, 02115, Boston, MA, USA
| | - Hannah M Peterson
- Center for Systems Biology Massachusetts General Hospital, Harvard Medial School, 185 Cambridge Street, CPZN 5206, 02114, Boston, MA, USA
| | - Joshua D Spitzberg
- Center for Systems Biology Massachusetts General Hospital, Harvard Medial School, 185 Cambridge Street, CPZN 5206, 02114, Boston, MA, USA
| | - Ralph Weissleder
- Center for Systems Biology Massachusetts General Hospital, Harvard Medial School, 185 Cambridge Street, CPZN 5206, 02114, Boston, MA, USA
- Department of Systems Biology, Harvard Medical School, 200 Longwood Ave, 02115, Boston, MA, USA
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3
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Huang W, Cheng Y, Zhai J, Qin Y, Zhang W, Xie X. Expanded single-color barcoding in microspheres with fluorescence anisotropy for multiplexed biochemical detection. Analyst 2023; 148:4406-4413. [PMID: 37552039 DOI: 10.1039/d3an00938f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Single-color barcoding strategies could break the limits of spectral crosstalk in conventional intensity-based fluorescence barcodes. Fluorescence anisotropy (FA), a self-referencing quantity able to differentiate spectrally similar fluorophores, is highly attractive in designing fluorescent barcodes within a limited emission window. In this study, FA-based encoding of polystyrene (PS) microspheres was realized for the first time. The FA signals of fluorophores were stabilized inside PS microspheres owing to hampered rotational motion. Fluorescent labels were incorporated with similar emission but different structures, symmetries, and lifetimes. On the one hand, Förster Resonance Energy Transfer (FRET) including homo-FRET and hetero-FRET resulted in a decrease of steady-state FA with increasing dye loading, converting conventional intensity-based codes into FA-based codes. On the other hand, mixing dyes with different intrinsic FA values generated different FA values at the same fluorescence intensity level. Single color 5-plex FA-encoded microspheres were demonstrated and decoded on a homemade microscopic FA imaging platform in real time. The FA-encoded microspheres were successfully applied to detect the oligonucleotide of the foodborne bacterium, Bacillus cereus, without spectral crosstalk between the encoding and reporting dyes. Overall, FA-based encoding with an expanded coding capacity in the FA dimension holds great potential in multiplexed high-throughput chemical and biological analyses.
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Affiliation(s)
- Wenyu Huang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Yu Cheng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Jingying Zhai
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Yuemin Qin
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Weian Zhang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
| | - Xiaojiang Xie
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.
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4
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Magnetic quantum dots barcodes using Fe 3O 4/TiO 2 with weak spectral absorption in the visible region for high-sensitivity multiplex detection of tumor markers. Biosens Bioelectron 2023; 227:115153. [PMID: 36805273 DOI: 10.1016/j.bios.2023.115153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/07/2023] [Accepted: 02/12/2023] [Indexed: 02/16/2023]
Abstract
Magnetic quantum dot (QD) barcode holds great potential for automatic suspension array and rapid point-of-care detection since it enables simultaneous target encoding, enrichment and separation. However, a serious obstacle to enhancing the encoding capacity of magnetic QD microbeads (MBs) is the fluorescence quenching of magnetic nanoparticles (MNPs) to quantum dots (QDs) in the visible wavelength range due to the broad and strong optical absorption spectrum of MNPs. Here, we report Fe3O4/TiO2 core/shell MNPs and CdSe/ZnS QDs for the construction of dual-function magnetic QD barcodes. Fe3O4/TiO2 MNPs can significantly inhibit fluorescence quenching because the weak absorption of visible light by the TiO2. The two-dimension barcode library of 30 magnetic QD barcodes was constructed based on Fe3O4/TiO2 MNPs and CdSe/ZnS QDs. Moreover, the magnetic QD barcodes showed high sensitivity for the multiplex detection of four tumor markers, cancer antigen 125 (CA125), cancer antigen 199 (CA199), alpha-fetoprotein (AFP), and neuron specific enolase (NSE) with detection limits of 0.89 KU/L, 0.72 KU/L, 0.05 ng/mL, and 0.15 ng/mL, respectively. This bifunctional magnetic QD barcodes are promising for automatic high-sensitivity multiplex bioassay.
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5
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Xing X, lv Q, Sun C, Song J, Chen Z, Jiang Y, Wang Y, Jiang Y, Wang Z. One-step preparation of PEG segment-functionalized polystyrene microspheres and their application as latex in LOCI. NEW J CHEM 2023. [DOI: 10.1039/d2nj05630e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
PEG segment-functionalized polystyrene microspheres were prepared by one-step copolymerization of amphiphilic macromolecular monomers, and further used as the latex for photosensitive polymer microspheres in luminescent oxygen channeling assay (LOCI).
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Affiliation(s)
- Xiaoxiao Xing
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Qingyu lv
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, P. R. China
| | - Chunyu Sun
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Jia Song
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Zhixin Chen
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Yong Jiang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
| | - Ye Wang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, P. R. China
| | - Yongqiang Jiang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, P. R. China
| | - Zhifei Wang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P. R. China
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6
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Mendez-Gonzalez D, Torres Vera V, Zabala Gutierrez I, Gerke C, Cascales C, Rubio-Retama J, G Calderón O, Melle S, Laurenti M. Upconverting Nanoparticles in Aqueous Media: Not a Dead-End Road. Avoiding Degradation by Using Hydrophobic Polymer Shells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105652. [PMID: 34897995 DOI: 10.1002/smll.202105652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/04/2021] [Indexed: 06/14/2023]
Abstract
The stunning optical properties of upconverting nanoparticles (UCNPs) have inspired promising biomedical technologies. Nevertheless, their transfer to aqueous media is often accompanied by intense luminescence quenching, partial dissolution by water, and even complete degradation by molecules such as phosphates. Currently, these are major issues hampering the translation of UCNPs to the clinic. In this work, a strategy is developed to coat and protect β-NaYF4 UCNPs against these effects, by growing a hydrophobic polymer shell (HPS) through miniemulsion polymerization of styrene (St), or St and methyl methacrylate mixtures. This allows one to obtain single core@shell UCNPs@HPS with a final diameter of ≈60-70 nm. Stability studies reveal that these HPSs serve as a very effective barrier, impeding polar molecules to affect UCNPs optical properties. Even more, it allows UCNPs to withstand aggressive conditions such as high dilutions (5 µg mL-1 ), high phosphate concentrations (100 mm), and high temperatures (70 °C). The physicochemical characterizations prove the potential of HPSs to overcome the current limitations of UCNPs. This strategy, which can be applied to other nanomaterials with similar limitations, paves the way toward more stable and reliable UCNPs with applications in life sciences.
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Affiliation(s)
- Diego Mendez-Gonzalez
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy Complutense University of Madrid, Plaza Ramon y Cajal 2, Madrid, 28040, Spain
- Nanomaterials for Bioimaging Group (nanoBIG), Departamento de Física de Materiales, Facultad de Ciencias, Universidad Autónoma de Madrid, C/Francisco Tomás y Valiente 7, Madrid, 28049, Spain
- Nanobiology Group, Instituto Ramón y Cajal de Investigación, Sanitaria Hospital Ramón y Cajal, Ctra. De Colmenar Viejo, Km. 9100, Madrid, 28034, Spain
| | - Vivian Torres Vera
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy Complutense University of Madrid, Plaza Ramon y Cajal 2, Madrid, 28040, Spain
| | - Irene Zabala Gutierrez
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy Complutense University of Madrid, Plaza Ramon y Cajal 2, Madrid, 28040, Spain
| | - Christoph Gerke
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy Complutense University of Madrid, Plaza Ramon y Cajal 2, Madrid, 28040, Spain
- Nanobiology Group, Instituto Ramón y Cajal de Investigación, Sanitaria Hospital Ramón y Cajal, Ctra. De Colmenar Viejo, Km. 9100, Madrid, 28034, Spain
| | - Concepción Cascales
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas CSIC, c/Sor Juana Inés de la Cruz 3, Madrid, 28049, Spain
| | - Jorge Rubio-Retama
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy Complutense University of Madrid, Plaza Ramon y Cajal 2, Madrid, 28040, Spain
- Nanobiology Group, Instituto Ramón y Cajal de Investigación, Sanitaria Hospital Ramón y Cajal, Ctra. De Colmenar Viejo, Km. 9100, Madrid, 28034, Spain
| | - Oscar G Calderón
- Department of Optics, Faculty of Optics and Optometry Complutense University of Madrid, Avda. Arcos de Jalón 118, Madrid, E-28037, Spain
| | - Sonia Melle
- Department of Optics, Faculty of Optics and Optometry Complutense University of Madrid, Avda. Arcos de Jalón 118, Madrid, E-28037, Spain
| | - Marco Laurenti
- Department of Chemistry in Pharmaceutical Sciences, Faculty of Pharmacy Complutense University of Madrid, Plaza Ramon y Cajal 2, Madrid, 28040, Spain
- Nanobiology Group, Instituto Ramón y Cajal de Investigación, Sanitaria Hospital Ramón y Cajal, Ctra. De Colmenar Viejo, Km. 9100, Madrid, 28034, Spain
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7
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Guo C, Zhai J, Wang Y, Du X, Wang Z, Xie X. Photoswitch-Based Fluorescence Encoding of Microspheres in a Limited Spectral Window for Multiplexed Detection. Anal Chem 2022; 94:1531-1536. [PMID: 35025214 DOI: 10.1021/acs.analchem.1c04856] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Fluorescence barcoding with multicolor fluorophores is limited by spectral crowding. Herein, we propose a fluorescence encoding method in a single-color channel with photoswitches. The photochromic naphthopyran was used to mediate the fluorescence of polystyrene microspheres through resonance energy transfer. The initial fluorescence intensity (F0) and the fluorescence after UV light activation (F/F0) were combined to generate hundreds of 2-dimensional barcodes. The coding capacity was further expanded with the different chemical kinetics of the photoswitches. The photoswitch-based fluorescence barcodes were applied to simultaneously and selectively detect the DNA sequences of COVID-19 (with related mutations) as a proof-of-concept for real applications. The compatibility with the state-of-the-art fluorescence microscopes and simple encoding and decoding make the method very attractive for multiplexed and high-throughput analyses.
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Affiliation(s)
- Chao Guo
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jingying Zhai
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yifu Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xinfeng Du
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zige Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xiaojiang Xie
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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8
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Krishnamurthy A, Anand RK. Recent advances in microscale extraction driven by ion concentration polarization. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Robust polymeric scaffold from 3D soft confinement self-assembly of polycondensation aromatic polymer. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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10
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Zhang B, Tang WS, Ding SN. Rational design of fluorescent barcodes for suspension array through a simple simulation strategy. Analyst 2021; 146:4796-4802. [PMID: 34259241 DOI: 10.1039/d1an01052b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Quantum dot (QD)-encoded microbeads as optical barcode with high fluorescence intensity and fluorescence uniformity, excellent stability and dispersity are greatly important for suspension array (SA). However, the size distribution of the microbeads mass-produced by the membrane emulsification method usually shows polydispersity, which leads to obstacles, imposing labour-intensive experimental iterations for the application of fluorescence-encoded microbeads as a distinguishable barcode. Herein, a simple simulation strategy based on a multicolor fluorescence model (MFM) was used to predict the influence of the microbeads' size distribution on the barcode signals. The point L and S respectively represent the two end points of the barcode, and the line segment LS can be considered as a cluster of the QD-encoded microbeads (simulated barcode). Experimental clusters of fluorescent microbeads were found to be in good agreement with the simulated barcodes. This simple simulation strategy can effectively simplify the experimental iteration process because the fluorescence-encoded microbeads are not decoded by a flow cytometer. Moreover, when applied for the high-throughput ultrasensitive detection of three tumor markers (CEA, CA125 and CA199) in a single sample, these barcodes exhibit superior detection performance. Detection limits of 0.028 ± 0.001 ng mL-1 for CEA, 1.5 ± 0.02 KU L-1 for CA125 and 0.8 ± 0.1 KU L-1 for CA199 are achieved, which meet the sensitivity criteria of tumor marker analysis. Therefore, this simple simulation strategy helps to overcome technical and economic obstacles for the widespread application of SA.
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Affiliation(s)
- Bo Zhang
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Wan-Sheng Tang
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
| | - Shou-Nian Ding
- Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
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11
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Xiang Y, Yan H, Zheng B, Faheem A, Guo A, Hu C, Hu Y. Light-Regulated Natural Fluorescence of the PCC 6803@ZIF-8 Composite as an Encoded Microsphere for the Detection of Multiple Biomarkers. ACS Sens 2021; 6:2574-2583. [PMID: 34156832 DOI: 10.1021/acssensors.1c00104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The use of color-encoded microspheres for a bead-based assay has attracted increasing attention for high-throughput multiplexed bioassays. A fluorescent PCC 6803@ZIF-8 composite was prepared as a bead-based assay platform by a self-assembled zeolitic imidazolate framework (ZIF-8) on the surface of inactivated PCC 6803 cells. The composite fluorescence owing to the presence of pigment proteins in PCC 6803 could be gradually bleached with the prolongation of the ultraviolet light irradiation time. The composites with different fluorescence intensities were therefore obtained as encoded microspheres for the multiplexed assay. ZIF-8 provides a stable, rigid shell and a large specific surface area for composites, which prevent the composites from breakage during use and storage, simplify the protein immobilization procedure, reduce non-specific adsorption, and enhance the detection sensitivity. The encoded composites were successfully used to detect multiple DNA insertion sequences of Mycobacterium tuberculosis. The presented strategy offers an innovative color-encoding method for high-throughput multiplexed bioassays without the need of using chemically synthesized fluorescent materials.
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Affiliation(s)
- Yuqiang Xiang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Huaduo Yan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Bingjie Zheng
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Aroosha Faheem
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Aizhen Guo
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Changmin Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Yonggang Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
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12
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Liu J, Jarzabek J, Roberts M, Majonis D, Winnik MA. A Silica Coating Approach to Enhance Bioconjugation on Metal-Encoded Polystyrene Microbeads for Bead-Based Assays in Mass Cytometry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:8240-8252. [PMID: 34170710 DOI: 10.1021/acs.langmuir.1c00954] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Bead-based assays in flow cytometry are multiplexed analytical techniques that allow rapid and simultaneous detection and quantification of a large number of analytes from small volumes of samples. The development of corresponding bead-based assays in mass cytometry (MC) is highly desirable since it could increase the number of analytes detected in a single assay. The microbeads for these assays have to be labeled with metal isotopes for MC detection. One must also be able to functionalize the bead surface with affinity reagents to capture the analytes. Metal-encoded polystyrene microbeads prepared by multi-stage dispersion polymerization can produce effective isotopic signals in MC with relatively small bead-to-bead variations. However, functionalizing this microbead surface with bioaffinity agents remains challenging, possibly due to the interference of the steric-stabilizing PVP corona on the microbead surface. Here, we report a systematic investigation of a silica coating approach to coat Eu-encoded microbeads with thin silica shells, to functionalize the surface with amino groups, and to introduce bioaffinity agents. We examine the effect of silica shell roughness on the bioconjugation capacity and the effect of silica shell thickness on signal quality in MC measurements. To limit non-specific binding, we converted the amino groups on the microbead surface to carboxylic acid groups. Antibodies were effectively attached to microbead by first conjugating NeutrAvidin to the carboxyl-modified bead surface and then attaching biotinylated antibodies to the NeutrAvidin-modified bead surface. The antibody-modified microbeads can specifically capture antigens, which were marked with isotopic labels, and generate strong signals in MC. These are promising results for the development of bead-based assays in MC.
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Affiliation(s)
- Jieyi Liu
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada
| | - Jonathan Jarzabek
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada
| | - Megan Roberts
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Daniel Majonis
- Fluidigm Canada, 1380 Rodick Rd, Markham, Ontario L3R 4G5, Canada
| | - Mitchell A Winnik
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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13
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Masoomi H, Wang Y, Chen C, Zhang J, Ge Y, Guo Q, Gu H, Xu H. A facile polymer mediated dye incorporation method for fluorescence encoded microbeads with large encoding capacities. Chem Commun (Camb) 2021; 57:4548-4551. [PMID: 33956007 DOI: 10.1039/d0cc08202c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here we report a facile dye incorporation method for fluorescence encoded microbeads, which is achieved by tuning the mixed polymer type (blank and dye-labeled polymers) and their doping ratio through electrostatic loading into mesoporous beads. This method is universal to various carriers and could render large encoding capacities.
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Affiliation(s)
- Hajar Masoomi
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Yao Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Cang Chen
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Jiayu Zhang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Yunfei Ge
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Qingsheng Guo
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Hongchen Gu
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Hong Xu
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, China.
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14
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Wang Y, Chen C, He J, Cao Y, Fang X, Chi X, Yi J, Wu J, Guo Q, Masoomi H, Wu C, Ye J, Gu H, Xu H. Precisely Encoded Barcodes through the Structure-Fluorescence Combinational Strategy: A Flexible, Robust, and Versatile Multiplexed Biodetection Platform with Ultrahigh Encoding Capacities. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2100315. [PMID: 33817970 DOI: 10.1002/smll.202100315] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/12/2021] [Indexed: 06/12/2023]
Abstract
With the rapid development of suspension array technology, microbeads-based barcodes as the core element with sufficient encoding capacity are urgently required for high-throughput multiplexed detection. Here, a novel structure-fluorescence combinational encoding strategy is proposed for the first time to establish a barcode library with ultrahigh encoding capacities. Based on the never revealed transformability of the structural parameters (e.g., porosity and matrix component) of mesoporous microbeads into scattering signals in flow cytometry, the enlargement of codes number has been successfully realized in combination with two other fluorescent elements of fluorescein isothiocyanate isomer I (FITC) and quantum dots (QDs). The barcodes are constructed with precise architectures including FITC encapsulated within mesopores and magnetic nanoparticles as well as QDs immobilized on the outer surface to achieve the ultrahigh encoding level of 300 accompanied with superparamagnetism. To the best of knowledge, it is the highest record of single excitation laser-based encoding capacity up to now. Moreover, a ten-plexed tumor markers bioassay based on the tailored-designed barcodes has been evaluated to confirm their feasibility and effectiveness, and the results indicate that the barcodes platform is a promising and robust tool for practical multiplexed biodetection.
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Affiliation(s)
- Yao Wang
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Cang Chen
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Jing He
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Yimei Cao
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Xiaoxia Fang
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Xiaomei Chi
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Jingwei Yi
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Jiancong Wu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Qingsheng Guo
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Hajar Masoomi
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Chongzhao Wu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Jian Ye
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Hongchen Gu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
| | - Hong Xu
- Shanghai Jiao Tong University Affiliated Sixth People's Hospital, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200030, P. R. China
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15
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Zhang Z, Zhang D, Qiu B, Cao W, Liu Y, Liu Q, Li X. Icebreaker-inspired Janus nanomotors to combat barriers in the delivery of chemotherapeutic agents. NANOSCALE 2021; 13:6545-6557. [PMID: 33885534 DOI: 10.1039/d0nr08853f] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Cancer chemotherapy remains challenging to pass through various biological and pathological barriers such as blood circulation, tumor infiltration and cellular uptake before the intracellular release of antineoplastic agents. Herein, icebreaker-inspired Janus nanomotors (JMs) are developed to address these transportation barriers. Janus nanorods (JRs) are constructed via seed-defined growth of mesoporous silica nanoparticles on doxorubicin (DOX)-loaded hydroxyapatite (HAp) nanorods. One side of JRs is grafted with urease as the motion power via catalysis of physiologically existed urea, and hyaluronidase (HAase) is on the other side to digest the viscous extracellular matrices (ECM) of tumor tissues. The rod-like feature of JMs prolongs the blood circulation, and the self-propelling force and instantaneous digestion of hyaluronic acid along the moving paths promote extravasation across blood vessels and penetration in tumor mass, leading to 2-fold higher drug levels in tumors after JM administration than those with JRs. The digestion of ECM in the diffusion paths is more effective to enhance drug retention and diffusion in tumors compared with enzyme-mediated motion. The ECM digestion and motion capabilities of JMs show no influence on the endocytosis mechanism, but lead to over 3-fold higher cellular uptake than those of pristine JRs. The JM treatment promotes therapeutic efficacy in terms of survival prolongation, tumor growth inhibition and cell apoptosis induction and causes no tumor metastasis to lungs with normal alveolar spaces. Thus, the self-driven motion and instantaneous clearance of diffusion routes demonstrate a feasible strategy to combat a series of biological barriers in the delivery of chemotherapeutic agents in favor of antitumor efficacy.
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Affiliation(s)
- Zhanlin Zhang
- School of Life Science and Engineering, Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, P.R. China
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16
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Qin C, Liu S, Wen S, Han Y, Chen S, Qie J, Chen H, Lin Q. Enhanced PCO prevention of drug eluting IOLs via endocytosis and autophagy effects of a PAMAM dendrimer. J Mater Chem B 2021; 9:793-800. [PMID: 33336672 DOI: 10.1039/d0tb02530e] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Drug-loaded intraocular lenses (IOLs) have received considerable attention in treating complications that arise after cataract surgery, especially posterior capsular opacification (PCO). However, for a better therapeutic effect, the drug concentration in IOLs usually needs to be increased. Herein, we developed multilayer (doxorubicin (DOX)@polyaminoamide (PAMAM) (D@P)/heparin sodium (HEP))5 modified IOLs, which efficiently enhance the inhibitory effect on PCO using the enhanced autophagy effect of a cationic PAMAM. The chemotherapeutic drug DOX was encapsulated in PAMAM to formulate cationic DOX@PAMAM nanoparticles. Subsequently, negatively charged HEP and D@P nanoparticles (NPs) were assembled on the aminated artificial IOL surface using the layer-by-layer (LBL) assembly technique. The (D@P/HEP)5 IOLs were implanted into rabbit eyes to evaluate the prevention of PCO. In vitro and in vivo research studies showed that the D@P NPs exhibited enhanced cellular uptake owing to the cell-penetrating cationic characteristics, while demonstrating enhanced autophagy. D@P NPs are more effective at the same DOX concentration when compared to free DOX. Multilayer-modified (D@P/HEP)5 IOLs can efficiently inhibit PCO after cataract surgery. This study provides a strategy for improving the therapeutic effect of antiproliferative drug DOX by using a cationic dendrimer, which, in turn, increases the level of autophagy of cells. These LBL-based multilayer IOLs have broad application prospects in the treatment of complications after cataract surgery.
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Affiliation(s)
- Chen Qin
- School of Ophthalmology & Optometry, Eye Hospital, Wenzhou Medical University, 270 Xueyuan Road, Wenzhou 325027, China.
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17
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Climent E, Gotor R, Tobias C, Bell J, Martin-Sanchez PM, Rurack K. Dip Sticks Embedding Molecular Beacon-Functionalized Core-Mesoporous Shell Particles for the Rapid On-Site Detection of Microbiological Fuel Contamination. ACS Sens 2021; 6:27-34. [PMID: 33356175 DOI: 10.1021/acssensors.0c01178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Microbial contamination of fuels by fungi and bacteria presents risks of corrosion and fuel system fouling. In this work, a rapid test for the determination of microbial genomic DNA from aqueous fuel extracts is presented. It combines test strips coated with polystyrene core/mesoporous silica shell particles, to the surface of which modified fluorescent molecular beacons are covalently grafted, with a smartphone detection system. In the hairpin loop, the beacons incorporate a target sequence highly conserved in all bacteria, corresponding to a fragment of the 16S ribosomal RNA gene, which is also present to a significant extent in the 18S rRNA gene of fungi, allowing for broadband microbial detection. In the developed assay, the presence of genomic DNA extracts from bacteria and fungi down to ca. 20-50 μg L-1 induced a distinct fluorescence response. The optical read-out was adapted for on-site monitoring by combining a 3D-printed case with a conventional smartphone, taking advantage of the sensitivity of contemporary complementary metal oxide semiconductor (CMOS) detectors. Such an embedded assembly allowed to detect microbial genomic DNA in aqueous extracts down to ca. 0.2-0.7 mg L-1 and presents an important step toward the on-site uncovering of fuel contamination in a rapid and simple fashion.
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Affiliation(s)
- Estela Climent
- Department 1 Analytical Chemistry, Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Raúl Gotor
- Department 1 Analytical Chemistry, Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Charlie Tobias
- Department 1 Analytical Chemistry, Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Jérémy Bell
- Department 1 Analytical Chemistry, Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
| | - Pedro M. Martin-Sanchez
- Department 4 Materials & Environment, Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
- Section for Genetics and Evolutionary Biology (Evogene), Department of Biosciences, University of Oslo, P.O.
Box 1066 Blindern, 0316 Oslo, Norway
| | - Knut Rurack
- Department 1 Analytical Chemistry, Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, 12489 Berlin, Germany
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Tobias C, Climent E, Gawlitza K, Rurack K. Polystyrene Microparticles with Convergently Grown Mesoporous Silica Shells as a Promising Tool for Multiplexed Bioanalytical Assays. ACS APPLIED MATERIALS & INTERFACES 2021; 13:207-218. [PMID: 33348979 DOI: 10.1021/acsami.0c17940] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Functional core/shell particles are highly sought after in analytical chemistry, especially in methods suitable for single-particle analysis such as flow cytometry because they allow for facile multiplexed detection of several analytes in a single run. Aiming to develop a powerful bead platform of which the core particle can be doped in a straightforward manner while the shell offers the highest possible sensitivity when functionalized with (bio)chemical binders, polystyrene particles were coated with different kinds of mesoporous silica shells in a convergent growth approach. Mesoporous shells allow us to obtain distinctly higher surface areas in comparison with conventional nonporous shells. While assessing the potential of narrow- as well as wide-pore silicas such as Mobil composition of matter no. 41 (MCM-41) and Santa Barbara amorphous material no. 15 (SBA-15), especially the synthesis of the latter shells that are much more suitable for biomolecule anchoring was optimized by altering the pH and both, the amount and type of the mediator salt. Our studies showed that the best performing material resulted from a synthesis using neutral conditions and MgSO4 as an ionic mediator. The analytical potential of the particles was investigated in flow cytometric DNA assays after their respective functionalization for individual and multiplexed detection of short oligonucleotide strands. These experiments revealed that a two-step modification of the silica surface with amino silane and succinic anhydride prior to coupling of an amino-terminated capture DNA (c-DNA) strand is superior to coupling carboxylic acid-terminated c-DNA to aminated core/shell particles, yielding limits of detection (LOD) down to 5 pM for a hybridization assay, using labeled complementary single-stranded target DNA (t-DNA) 15mers. The potential of the use of the particles in multiplexed analysis was shown with the aid of dye-doped core particles carrying a respective SBA-15 shell. Characteristic genomic sequences of human papillomaviruses (HPV) were chosen as the t-DNA analytes here, since their high relevance as carcinogens and the high number of different pathogens is a relevant model case. The title particles showed a promising performance and allowed us to unequivocally detect the different high- and low-risk HPV types in a single experimental run.
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Affiliation(s)
- Charlie Tobias
- Chemical and Optical Sensing Division, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, D-12489 Berlin, Germany
| | - Estela Climent
- Chemical and Optical Sensing Division, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, D-12489 Berlin, Germany
| | - Kornelia Gawlitza
- Chemical and Optical Sensing Division, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, D-12489 Berlin, Germany
| | - Knut Rurack
- Chemical and Optical Sensing Division, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Str. 11, D-12489 Berlin, Germany
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19
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Carl P, Sarma D, Gregório BJR, Hoffmann K, Lehmann A, Rurack K, Schneider RJ. Wash-Free Multiplexed Mix-and-Read Suspension Array Fluorescence Immunoassay for Anthropogenic Markers in Wastewater. Anal Chem 2019; 91:12988-12996. [DOI: 10.1021/acs.analchem.9b03040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Peter Carl
- Department of Analytical Chemistry; Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany
| | - Dominik Sarma
- Department of Analytical Chemistry; Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, D-12489 Berlin, Germany
| | - Bruno J. R. Gregório
- LAQV, REQUIMTE, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Kristin Hoffmann
- Department of Analytical Chemistry; Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
| | - Andreas Lehmann
- Department of Analytical Chemistry; Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
| | - Knut Rurack
- Department of Analytical Chemistry; Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
| | - Rudolf J. Schneider
- Department of Analytical Chemistry; Reference Materials, Bundesanstalt für Materialforschung und -prüfung (BAM), Richard-Willstätter-Strasse 11, D-12489 Berlin, Germany
- Technische Universität Berlin, Straße des 17. Juni 135, D-10623 Berlin, Germany
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