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Choi J, Choi K, Kwon Y, Kim D, Yoo Y, Im SG, Koh DY. Ultrathin organosiloxane membrane for precision organic solvent nanofiltration. Nat Commun 2024; 15:2800. [PMID: 38555289 PMCID: PMC10981765 DOI: 10.1038/s41467-024-47115-9] [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: 11/09/2023] [Accepted: 03/20/2024] [Indexed: 04/02/2024] Open
Abstract
Promising advances in membrane technology can lead to energy-saving and eco-friendly solutions in industrial sectors. This work demonstrates a highly selective membrane with ultrathin and highly interconnected organosiloxane polymer nanolayers by initiated chemical vapor deposition to effectively separate solutes within the molecular weight range of 150-300 g mol-1. We optimize the poly(1,3,5,7-tetravinyl-1,3,5,7-tetramethylcyclotetrasiloxane) membrane by adjusting both the thickness of the selective layer and the pore sizes of its support membranes. Notably, the 29 nm selective layer imparts a uniformly narrow molecular sieving property, providing a record-high solute-solute selectivity of 39.88 for different-sized solutes. Furthermore, a solute-solute selectivity of 11.04 was demonstrated using the real-world active pharmaceutical ingredient mixture of Acyclovir and Valacyclovir, key components for Herpes virus treatment, despite their molecular weight difference of less than 100 g mol-1. The highly interconnected membrane is expected to meet rigorous requirements for high-standard active pharmaceutical ingredient separation.
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Affiliation(s)
- Jihoon Choi
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Keonwoo Choi
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - YongSung Kwon
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Daehun Kim
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Youngmin Yoo
- Green Carbon Research Center, Chemical Process Division, Korea Research Institute of Chemical Technology, 141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, Republic of Korea
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- KAIST Institute for NanoCentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| | - Dong-Yeun Koh
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- KAIST Institute for NanoCentury, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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Song Y, Kim YT, Choi Y, Kim H, Yeom MH, Kim Y, Lee TJ, Lee KG, Im SG. All-in-One DNA Extraction Tube for Facilitated Real-Time Detection of Infectious Pathogens. Adv Healthc Mater 2021; 10:e2100430. [PMID: 34050626 DOI: 10.1002/adhm.202100430] [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: 03/07/2021] [Revised: 04/29/2021] [Indexed: 12/23/2022]
Abstract
An "all-in-one tube" platform is developed, where the genetic analysis involving DNA extraction, amplification, and detection can be performed in a single tube. The all-in-one tube consists of a polymerase chain reaction (PCR) tube in which the inner surface is conformally modified with a tertiary-amine-containing polymer to generate a strong electrostatic interaction with DNA. The all-in-one tube provides high DNA capture efficiency exceeding 80% from Escherichia coli O157: H7 pathogen at a wide range of DNA amount from 0.003 to 3 ng. Indeed, the use of the surface-functionalized PCR tube enables direct amplification and detection of the surface-captured DNA without the modification of standard real-time PCR instrument. Besides, this platform has sensitivity, selectivity, and reliability enough for accurate detection at the minimal infective dose of both gram-positive and negative pathogens. The all-in-one tube enables the direct molecular diagnosis, substantially reducing the labor-intensive pathogen detection steps while providing high compatibility with the currently established real-time PCR instruments, and illustrates its on-site applicability with convenience expandable to various genetic analyses including food safety testing, forensic analysis, and clinical diagnosis.
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Affiliation(s)
- Younseong Song
- Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology 291 Daehak‐ro Daejeon 34141 Republic of Korea
| | - Yong Tae Kim
- Department of Chemical Engineering & Biotechnology Korea Polytechnic University 237 Sangidaehak‐ro Siheung‐si 15073 Republic of Korea
| | - Yunho Choi
- Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology 291 Daehak‐ro Daejeon 34141 Republic of Korea
| | - Hogi Kim
- Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology 291 Daehak‐ro Daejeon 34141 Republic of Korea
| | - Min Hee Yeom
- Nanobio Application Team National NanoFab Center 291 Daehak‐ro Daejeon 34141 Republic of Korea
| | - Yesol Kim
- Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology 291 Daehak‐ro Daejeon 34141 Republic of Korea
| | - Tae Jae Lee
- Nanobio Application Team National NanoFab Center 291 Daehak‐ro Daejeon 34141 Republic of Korea
| | - Kyoung G. Lee
- Nanobio Application Team National NanoFab Center 291 Daehak‐ro Daejeon 34141 Republic of Korea
| | - Sung Gap Im
- Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology 291 Daehak‐ro Daejeon 34141 Republic of Korea
- KAIST Institute for NanoCentury Korea Advanced Institute of Science and Technology 291 Daehak‐ro Daejeon 34141 Republic of Korea
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