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Medina DAV, Lozada-Blanco A, Rodríguez JPG, Lanças FM, Santos-Neto ÁJ. An open-source smart fraction collector for isocratic preparative liquid chromatography. HardwareX 2023; 15:e00462. [PMID: 37600064 PMCID: PMC10432948 DOI: 10.1016/j.ohx.2023.e00462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/16/2023] [Accepted: 07/30/2023] [Indexed: 08/22/2023]
Abstract
Preparative liquid chromatography is a technique for separating complex samples or isolating pure compounds from complex extracts. It involves eluting samples through a packed column and selectively collecting or isolating the separated bands in a sequence of fractions. Depending on the column length and the sample complexity, a large number of fractions may be obtained, making fraction collection a laborious and time-consuming process. Manual fraction collection is also tedious, error-prone, less reproducible, and susceptible to contamination. Several commercial and lab-made solutions are available for automated fraction collection, but most systems do not synchronize with the instrument detector and collect fractions at fixed volumes or time intervals. We have assembled a low-cost Arduino-based smart fraction collector that can record the signal from the UV-vis detector of the chromatography instrument and enable the automated selective collection of the targeted bands. The system consists of a robot equipped with position sensors and a 3-way solenoid valve that switches the column effluent between the waste or collection positions. By proper programming, an Arduino board records the detector response and actuates the solenoid valve, the position sensors, and the stepper motors to collect the target chromatographic bands.
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Kedward LJ, Aradi B, Certik O, Curcic M, Ehlert S, Engel P, Goswami R, Hirsch M, Lozada-Blanco A, Magnin V, Markus A, Pagone E, Pribec I, Richardson B, Snyder H, Urban J, Vandenplas J. The State of Fortran. Comput Sci Eng 2022. [DOI: 10.1109/mcse.2022.3159862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | | | - Sebastian Ehlert
- Institut für Physikalische und Theoretische Chemie, Universität Bonn, Bonn, Germany
| | | | | | | | | | - Vincent Magnin
- Université Lille, CNRS, Centrale Lille, Université Polytechnique Hauts-de-France, IEMN, Lille, France
| | - Arjen Markus
- Deltares Research Institute, Delft, The Netherlands
| | | | - Ivan Pribec
- Technical University of Munich, Munich, Germany
| | | | | | - John Urban
- High-Performance Computing Consultant, USA
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Jiang W, Qu ZB, Kumar P, Vecchio D, Wang Y, Ma Y, Bahng JH, Bernardino K, Gomes WR, Colombari FM, Lozada-Blanco A, Veksler M, Marino E, Simon A, Murray C, Muniz SR, de Moura AF, Kotov NA. Emergence of complexity in hierarchically organized chiral particles. Science 2020; 368:642-648. [DOI: 10.1126/science.aaz7949] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 03/30/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Wenfeng Jiang
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zhi-bei Qu
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Prashant Kumar
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Drew Vecchio
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yuefei Wang
- Department of Materials Science, University of Michigan, Ann Arbor, MI 48109, USA
- School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Yu Ma
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- School of Stomatology, Lanzhou University, Lanzhou 730000, China
| | | | - Kalil Bernardino
- Institute of Chemistry, University of São Paulo, 05508-000 São Paulo, SP, Brazil
| | - Weverson R. Gomes
- Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Felippe M. Colombari
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-970 Campinas, SP, Brazil
| | - Asdrubal Lozada-Blanco
- Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Michael Veksler
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Emanuele Marino
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Alex Simon
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Christopher Murray
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sérgio Ricardo Muniz
- São Carlos Institute of Physics, University of São Paulo, 13560-970 São Carlos, SP, Brazil
| | - André F. de Moura
- Department of Chemistry, Federal University of São Carlos, 13565-905 São Carlos, SP, Brazil
| | - Nicholas A. Kotov
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Materials Science, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA
- Michigan Institute of Translational Nanotechnology (MITRAN), Ypsilanti, MI 48198, USA
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