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Wang R, Sun R, Yang Y, E J, Yao C, Zhang Q, Chen Z, Ma R, Li J, Zhang J, Wang J. Effects of salt stress on the freeze-drying survival rate of Lactiplantibacillus plantarum LIP-1. Food Microbiol 2022; 105:104009. [DOI: 10.1016/j.fm.2022.104009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 02/21/2022] [Accepted: 02/21/2022] [Indexed: 11/04/2022]
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Chen M, Dong F, Li H, Zhao Y, Ou S, Liu M, Zhang W. Interface interaction between high-siliceous/calcareous mineral granules and model cell membranes dominated by electrostatic force. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:27432-27445. [PMID: 33506418 DOI: 10.1007/s11356-021-12584-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
High-siliceous/calcareous mineral granules may cause cytotoxicity by attaching to cell membranes. In this research, giant (GUVs) and small unilamellar vesicles (SUVs) were used as model membranes for studying the interaction between high-siliceous/calcareous mineral granules (micro calcite, micro quartz, nano calcium carbonate, and nano silica) and artificial membranes. Confocal laser scanning microscopy (CLSM) and fluorescence labeling experiments suggest that nano calcium carbonate (nano CaCO3) and nano silica (nano SiO2) induce gelation by disrupting the oppositely charged membranes, indicating the important role of electrostatic forces. Thereby, the mineral granule size affects the electrostatic interactions and thus leading to the damage of the membranes. FTIR spectra and molecular dynamics reveal that mineral granules mainly interact with -PO2-, -OH, and -C-N(CH3)3+ groups in phospholipids. The electrostatic force between nano minerals and phospholipids is greater in the case SiO2 when compared to CaCO3. Moreover, nano SiO2 forms the strongest hydrogen bond with the -PO2- group as confirmed by FTIR. Thus, nano SiO2 causes the greatest damage to membranes. This research provides a deeper understanding of the mechanism regarding the interaction between inhalable mineral granules and cell membranes.
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Affiliation(s)
- Mulan Chen
- Life Science and Engineering College, Southwest University of Science and Technology, Mianyang, 621010, People's Republic of China
| | - Faqin Dong
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education of China, Mianyang, 621010, People's Republic of China.
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, People's Republic of China.
| | - Hailong Li
- Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education of China, Mianyang, 621010, People's Republic of China
| | - Yulian Zhao
- Life Science and Engineering College, Southwest University of Science and Technology, Mianyang, 621010, People's Republic of China
| | - Shi Ou
- Life Science and Engineering College, Southwest University of Science and Technology, Mianyang, 621010, People's Republic of China
| | - Mingxue Liu
- Life Science and Engineering College, Southwest University of Science and Technology, Mianyang, 621010, People's Republic of China.
- National Co-innovation Center for Nuclear Waste Disposal and Environmental Safety, Southwest University of Science and Technology, Mianyang, 621010, People's Republic of China.
| | - Wei Zhang
- Analytical and Testing Center, Southwest University of Science and Technology, Mianyang, 621010, People's Republic of China
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Santiago-Martoral L, Figueroa A, Nicolau E. Lyotropic Liquid Crystal-Based Membranes for Water Remediation: Fabrication, Characterization and Performance Evaluation. ACS OMEGA 2020; 5:17940-17946. [PMID: 32743166 PMCID: PMC7391249 DOI: 10.1021/acsomega.0c00946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 07/02/2020] [Indexed: 06/11/2023]
Abstract
In water remediation, biomimetic membranes are gaining much attention due to their selectivity, dynamic stability, nontoxicity, and biocompatibility. Lyotropic liquid crystals (LLCs) are self-organizing networks that can conform to an array of geometries with high pore densities. As such, LLCs are excellent membrane materials for water applications because they are water insoluble and are manipulated to conform to an array of morphologies that provide natural water channels that are readily tunable in size. They have the ability to create uniform pores, between the range of 1 and 5 nm, with large surface areas. Thus, this work focuses on the design, fabrication, and characterization of LLC-modified Janus-type membranes for forward osmosis applications. Physical characterization of the membranes was performed using scanning electron microscopy (SEM), and the results show an open-pore radius and the presence of both finger- and sponge-like pores depending on membrane preparation. The contact angle assessment indicates that as the membranes are further modified with other polymers (e.g., PAN), higher hydrophilicity and surface energy are achieved. Moreover, the Brunauer-Emmett-Teller (BET) analysis showed a significant variation in the pore distribution between membranes. Functionalized membranes presented satisfactory water flux and superior salt rejection compared to nonfunctionalized membranes. SupPACMoDS membranes are 83% more efficient at preventing salt back flux than the nonmodified version. This is credited to the thickness and pore structure provided by the PAN support layer in the membrane.
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Affiliation(s)
- Liz Santiago-Martoral
- Department
of Chemistry, University of Puerto Rico, Rio Piedras Campus, 17 Ave. Universidad
Ste. 1701, San Juan, Puerto
Rico 00925-2537, United
States
- Molecular
Sciences Research Center, University of
Puerto Rico, 1390 Ponce De Leon Ave, Suite 2, San Juan, Puerto Rico 00931-3346, United States
| | - Adrialis Figueroa
- Department
of Chemistry, University of Puerto Rico, Rio Piedras Campus, 17 Ave. Universidad
Ste. 1701, San Juan, Puerto
Rico 00925-2537, United
States
- Molecular
Sciences Research Center, University of
Puerto Rico, 1390 Ponce De Leon Ave, Suite 2, San Juan, Puerto Rico 00931-3346, United States
| | - Eduardo Nicolau
- Department
of Chemistry, University of Puerto Rico, Rio Piedras Campus, 17 Ave. Universidad
Ste. 1701, San Juan, Puerto
Rico 00925-2537, United
States
- Molecular
Sciences Research Center, University of
Puerto Rico, 1390 Ponce De Leon Ave, Suite 2, San Juan, Puerto Rico 00931-3346, United States
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Liang Z, Yun Y, Wang M, Liu G, Lu P, Yang W, Li C. Performance evaluation of interfacial polymerisation-fabricated aquaporin-based biomimetic membranes in forward osmosis. RSC Adv 2019; 9:10715-10726. [PMID: 35515303 PMCID: PMC9062497 DOI: 10.1039/c9ra00787c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 06/18/2019] [Accepted: 03/22/2019] [Indexed: 12/24/2022] Open
Abstract
Aquaporins play a promising role in the fabrication of high-performance biomimetic membranes. Interfacial polymerisation is a promising strategy for synthesizing aquaporin-based membranes. In this study, robust and high-performance aquaporin-based biomimetic membranes were successfully fabricated by interfacial polymerisation, and the membrane separation performance and interfacial polymerisation method were systematically evaluated. The effects of modification methods on the performance of aquaporins-based biomimetic membranes, including sodium hypochlorite and thermal post-treatment, protein-to-lipid ratio, liposome concentration and the addition arrangement of aquaporins were also investigated. Morphological observation suggested that the introduced proteoliposomes were completely embedded in the polyamide layer and that their spherical shape was preserved. Sodium hypochlorite post-treatment and thermal treatment were beneficial in improving the water flux and salt rejection of the resultant membrane without sacrificing the aquaporin activity. The biomimetic membranes had a high water flux and salt rejection, which were almost twice that of the control membranes, after aquaporin-based proteoliposomes were incorporated with an appropriated protein-to-lipid ratio and liposome concentration. The addition arrangement of aquaporins during the interfacial polymerisation procedure significantly influence the obtained membrane's structure. Lastly, this article introduces valuable and systematic research on interfacial polymerisation fabricated aquaporin-based biomimetic membranes with outstanding separation performance. Aquaporins play a promising role in the fabrication of high-performance biomimetic membranes.![]()
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Affiliation(s)
- Zhixia Liang
- School of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- China
| | - Yanbin Yun
- School of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- China
| | - Manxiang Wang
- Center for Energy Storage Research
- Green City Research Institute
- Korea Institute of Science and Technology (KIST)
- Seoul 02792
- Republic of Korea
| | - Guicheng Liu
- Department of Physics
- Dongguk University
- Seoul 04620
- Republic of Korea
| | - Peng Lu
- College of Material Science and Chemical Engineering
- Ningbo University
- Zhejiang 315211
- China
| | - Woochul Yang
- Department of Physics
- Dongguk University
- Seoul 04620
- Republic of Korea
| | - Chunli Li
- College of Material Science and Chemical Engineering
- Ningbo University
- Zhejiang 315211
- China
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