Magnetic Levitation in Chemistry, Materials Science, and Biochemistry. Issue 41 (11th August 2020)

• Record Type: Journal Article
• Authors: Ge, Shencheng; Nemiroski, Alex; Mirica, Katherine A.; Mace, Charles R.; Hennek, Jonathan W.; Kumar, Ashok A.; Whitesides, George M.
• Is Part Of: Angewandte Chemie international edition. Volume 59:Issue 41(2020)
• Page Start: 17810
• Page End: 17855
• Publication Date: 2020-08-11
• Subjects: density-based measurement -- magnetic levitation -- magnetic properties -- quality control; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201903391
• Languages: English
• ISSNs: 1433-7851

Abstract

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). Abstract : A density‐based technique —magnetic levitation (MagLev)—developed and used to solve problems in the fields of chemistry, materials science, and biochemistry is described in this Review. MagLev has two principal characteristics: i) it is density‐based, and thus in principle applicable to all materials, and ii) it is simple—a characteristic that makes it useful for a number of applications.