|
1
|
Chorti P, Christodouleas DC. Sink/Float Magnetic Immunoassays for In‐Field Bioassays. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Parthena Chorti
- Department of Chemistry University of Massachusetts Lowell One University Avenue Lowell MA 01854 USA
| | | |
Collapse
|
|
2
|
Chorti P, Christodouleas DC. Sink/Float Magnetic Immunoassays for In-Field Bioassays. Angew Chem Int Ed Engl 2021; 60:26947-26953. [PMID: 34647402 DOI: 10.1002/anie.202108714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 09/28/2021] [Indexed: 11/06/2022]
Abstract
Analytical tests/devices that are used outside laboratory settings are required to have a very simple analytical protocol to get clearance by regulatory authorities. This study describes sink/float magnetic immunoassays, a new type of rapid, mix-and-observe, instrument-free tests for the detection of biomarkers in untreated biological samples that are very simple and might meet the simple-to-use criterion of authorities to be used in the field. These tests can tell whether an analyte is above or below a predetermined level within 25-45 minutes based on the sinking or floating of a mm-sized sphere on the surface of which an immunoassay that uses reporter antibodies conjugated to superparamagnetic nanoparticles is performed. This manuscript describes the theory and proof-of-concept applications of sink/float magnetic immunoassays for the detection of C-Reactive Protein, anti-Treponema pallidum antibodies and E. coli bacteria.
Collapse
Affiliation(s)
- Parthena Chorti
- Department of Chemistry, University of Massachusetts Lowell, One University Avenue, Lowell, MA, 01854, USA
| | - Dionysios C Christodouleas
- Department of Chemistry, University of Massachusetts Lowell, One University Avenue, Lowell, MA, 01854, USA
| |
Collapse
|
|
3
|
Ge S, Nemiroski A, Mirica KA, Mace CR, Hennek JW, Kumar AA, Whitesides GM. Magnetic Levitation in Chemistry, Materials Science, and Biochemistry. Angew Chem Int Ed Engl 2020; 59:17810-17855. [PMID: 31165560 DOI: 10.1002/anie.201903391] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Indexed: 12/25/2022]
Abstract
All matter has density. The recorded uses of density to characterize matter date back to as early as ca. 250 BC, when Archimedes was believed to have solved "The Puzzle of The King's Crown" using density.[1] Today, measurements of density are used to separate and characterize a range of materials (including cells and organisms), and their chemical and/or physical changes in time and space. This Review describes a density-based technique-magnetic levitation (which we call "MagLev" for simplicity)-developed and used to solve problems in the fields of chemistry, materials science, and biochemistry. MagLev has two principal characteristics-simplicity, and applicability to a wide range of materials-that make it useful for a number of applications (for example, characterization of materials, quality control of manufactured plastic parts, self-assembly of objects in 3D, separation of different types of biological cells, and bioanalyses). Its simplicity and breadth of applications also enable its use in low-resource settings (for example-in economically developing regions-in evaluating water/food quality, and in diagnosing disease).
Collapse
Affiliation(s)
- Shencheng Ge
- Department of Chemistry & Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Alex Nemiroski
- Department of Chemistry & Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Katherine A Mirica
- Department of Chemistry & Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Charles R Mace
- Department of Chemistry & Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Jonathan W Hennek
- Department of Chemistry & Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - Ashok A Kumar
- Department of Chemistry & Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA
| | - George M Whitesides
- Department of Chemistry & Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, MA, 02138, USA.,Wyss Institute for Biologically Inspired Engineering, Harvard University, 60 Oxford Street, Cambridge, MA, 02138, USA.,Kavli Institute for Bionano Science & Technology, Harvard University, 29 Oxford Street, Cambridge, MA, 02138, USA
| |
Collapse
|
|
4
|
Ge S, Nemiroski A, Mirica KA, Mace CR, Hennek JW, Kumar AA, Whitesides GM. Magnetische Levitation in Chemie, Materialwissenschaft und Biochemie. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201903391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Shencheng Ge
- Department of Chemistry & Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Alex Nemiroski
- Department of Chemistry & Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Katherine A. Mirica
- Department of Chemistry & Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Charles R. Mace
- Department of Chemistry & Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Jonathan W. Hennek
- Department of Chemistry & Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - Ashok A. Kumar
- Department of Chemistry & Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
| | - George M. Whitesides
- Department of Chemistry & Chemical Biology Harvard University 12 Oxford Street Cambridge MA 02138 USA
- Wyss Institute for Biologically Inspired Engineering Harvard University 60 Oxford Street Cambridge MA 02138 USA
- Kavli Institute for Bionano Science & Technology Harvard University 29 Oxford Street Cambridge MA 02138 USA
| |
Collapse
|