Membranes最新文献_第2页

Challenges and Opportunities of Choosing a Membrane for Electrochemical CO₂ Reduction.

IF 3.3 4区工程技术

Membranes Pub Date : 2025-02-08 DOI: 10.3390/membranes15020055

Helene Rehberger, Mohammad Rezaei, Abdalaziz Aljabour

{"title":"Challenges and Opportunities of Choosing a Membrane for Electrochemical CO2 Reduction.","authors":"Helene Rehberger, Mohammad Rezaei, Abdalaziz Aljabour","doi":"10.3390/membranes15020055","DOIUrl":"10.3390/membranes15020055","url":null,"abstract":"The urgent need to reduce greenhouse gas emissions, particularly carbon dioxide (CO2), has led to intensive research into novel techniques for synthesizing valuable chemicals that address climate change. One technique that is becoming increasingly important is the electrochemical reduction of CO2 to produce carbon monoxide (CO), an important feedstock for various industrial processes. This comprehensive review examines the latest developments in CO2 electroreduction, focusing on mechanisms, catalysts, reaction pathways, and optimization strategies to enhance CO production efficiency. A particular emphasis is placed on the role of ion exchange membranes, including cation exchange membranes (CEMs), anion exchange membranes (AEMs), and bipolar membranes (BPMs). The review explores their advantages, disadvantages, and the current challenges associated with their implementation in CO2 electroreduction systems. Through careful analysis of the current literature, this report aims to provide a comprehensive understanding of state-of-the-art methods and their potential impact on sustainable CO production, with a special focus on membrane technologies.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11857237/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in Ceramic-Carbonate Dual-Phase Membrane Reactors for Direct CO₂ Separation and Utilization.

IF 3.3 4区工程技术

Membranes Pub Date : 2025-02-06 DOI: 10.3390/membranes15020053

Xue Kang, Qing Yang, Jiajie Ma, Qiangchao Sun, Hongwei Cheng

{"title":"Advances in Ceramic-Carbonate Dual-Phase Membrane Reactors for Direct CO2 Separation and Utilization.","authors":"Xue Kang, Qing Yang, Jiajie Ma, Qiangchao Sun, Hongwei Cheng","doi":"10.3390/membranes15020053","DOIUrl":"10.3390/membranes15020053","url":null,"abstract":"Excessive (carbon dioxide) CO2 emissions are a primary factor contributing to climate change. As one of the crucial technologies for alleviating CO2 emissions, carbon capture and utilization (CCU) technology has attracted considerable global attention. Technologies for capturing CO2 in extreme circumstances are indispensable for regulating CO2 levels in industrial processes. The unique separation characteristics of the ceramic-carbonate dual-phase (CCDP) membranes are increasingly employed for CO2 separation at high temperatures due to their outstanding chemical, thermal durability, and mechanical strength. This paper presents an overview of CO2 capture approaches and materials. It also elaborates on the research progress of three types of CCDP membranes with distinct permeation mechanisms, concentrating on their principles, materials, and structures. Additionally, several typical membrane reactors, such as the dry reforming of methane (DRM) and reverse water-gas shift (RWGS), are discussed to demonstrate how captured CO2 can function as a soft oxidant, converting feedstocks into valuable products through oxidation pathways designed within a single reactor. Finally, the future challenges and prospects of high-temperature CCDP membrane technologies and their related reactors are proposed.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11857180/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Endotoxin-Retentive Filters for the Online Preparation of Ultrapure Dialysis Fluid and Non-Pyrogenic Substitution Fluid: A Critical Review and Reference Guide.

IF 3.3 4区工程技术

Membranes Pub Date : 2025-02-05 DOI: 10.3390/membranes15020051

Gerardo Catapano, Giuseppe Morrone, Lilio Hu, Gionata Fragomeni, Andrea Buscaroli

{"title":"Endotoxin-Retentive Filters for the Online Preparation of Ultrapure Dialysis Fluid and Non-Pyrogenic Substitution Fluid: A Critical Review and Reference Guide.","authors":"Gerardo Catapano, Giuseppe Morrone, Lilio Hu, Gionata Fragomeni, Andrea Buscaroli","doi":"10.3390/membranes15020051","DOIUrl":"10.3390/membranes15020051","url":null,"abstract":"Poor water treatments and concentrates to prepare dialysis fluids favor bacterial growth-producing pyrogens (e.g., endotoxins) that may cross hemodialysis, particularly high-flux, membranes. This puts hemodialysis patients at risk of acute bacteremia, pyrogenic reactions, long-term complications, loss of residual renal function, and poor nutritional status. Consequently, regulatory bodies worldwide recommend using ultrapure dialysis fluid for routine hemodialysis. Requests are also growing for the online production of sterile non-pyrogenic substitution fluid from ultrapure dialysis fluid. This way, large volumes of infusion solution may be safely and economically produced, enabling more end-stage kidney disease patients to benefit from the greater capacity of hemodiafiltration to remove toxins than purely diffusive hemodialysis treatment. Ultrapure dialysis and substitution fluids are often produced upstream from hemodialyzers by online filtration of standard dialysis fluid through cascades of bacteria- and endotoxin-retentive filters (ETRFs). Commercial ETRFs differ for membranes, operation, performance, duration and maintenance protocols, connection to a dialysis machine, disinfection procedures, and replacement schedule. Although suboptimal ETRF choice may increase treatment costs, the difficulty in gathering comparative information on commercial ETRFs complicates their selection. To aid dialysis centers in selecting the most convenient and suitable ETRF for their needs, herein, relevant characteristics of commercial ETRFs are reported and critically reviewed for a quick yet effective comparison.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11857269/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environment-Oriented Assessment of Hybrid Methods for Separation of N-Propanol-Water Mixtures: Combination of Distillation and Hydrophilic Pervaporation Processes.

IF 3.3 4区工程技术

Membranes Pub Date : 2025-02-05 DOI: 10.3390/membranes15020048

Huyen Trang Do Thi, Andras Jozsef Toth

{"title":"Environment-Oriented Assessment of Hybrid Methods for Separation of N-Propanol-Water Mixtures: Combination of Distillation and Hydrophilic Pervaporation Processes.","authors":"Huyen Trang Do Thi, Andras Jozsef Toth","doi":"10.3390/membranes15020048","DOIUrl":"10.3390/membranes15020048","url":null,"abstract":"This study presents a novel approach to the dehydration of n-propanol using three hybrid methods-D + HPV, D + HPV + D, and D + HPV + D with heat integration-each combining distillation (D) and hydrophilic pervaporation (HPV) without the use of additional solvent agents, as in the most common separation method, extractive distillation. The optimization was performed using a ChemCAD process simulator, targeting 99.9 wt% purity for n-propanol and water. This is the first research to provide a comprehensive cost estimation and carbon footprint analysis for such configurations. Results show the D + HPV + D + HI method provides the best balance of energy efficiency, environmental sustainability, and economic feasibility. It reduced heat duties by 18.5% compared to D + HPV + D, achieved similar CO2 emissions to D + HPV with better energy efficiency, and lowered the total annual cost by 37.9% compared to D + HPV. The findings establish D + HPV + D + HI as a promising technology for sustainable and cost-effective n-propanol dehydration.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11857795/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CO₂ and O₂ Separation Dual-Phase Membranes for Diesel Heavy-Duty Vehicles Applications.

IF 3.3 4区工程技术

Membranes Pub Date : 2025-02-05 DOI: 10.3390/membranes15020049

Eirini Zagoraiou, Luca Cappai, Anastasia Maria Moschovi, Gabriele Mulas, Iakovos Yakoumis

{"title":"CO2 and O2 Separation Dual-Phase Membranes for Diesel Heavy-Duty Vehicles Applications.","authors":"Eirini Zagoraiou, Luca Cappai, Anastasia Maria Moschovi, Gabriele Mulas, Iakovos Yakoumis","doi":"10.3390/membranes15020049","DOIUrl":"10.3390/membranes15020049","url":null,"abstract":"Diesel-engine Heavy-Duty Vehicle (HDV) exhaust gas mixture contains pollutants including unburned hydrocarbons, carbon monoxide, nitrogen oxides, and particulate matter. A catalyst-based emission control system is commonly used to eliminate the above pollutants. However, the excess of oxygen that exists in the exhaust gasses of diesel engines hinders the efficient and selective reduction of nitrogen oxides over conventional catalytic converters. The AdBlue® solution, which is currently used to eliminate nitrogen oxides, is based on ammonia. The latter is toxic in high concentrations. The aim of this work is to develop an Oxygen Reduction System (ORS) to remove oxygen from the exhaust gas of diesel engines, allowing the successful catalytic reduction of nitrogen oxides on a reduction catalyst without the need for ammonia. The ORS device consists of dense composite dual-phase membranes that allow the permeation of oxygen and carbon dioxide. Even though the oxygen concentration gradient across the membranes favors oxygen spontaneous diffusion from the atmosphere to the exhaust gas, the carbonate ion-based technology proposed herein utilizes the big difference in the concentration of carbon dioxide across the membrane to remove oxygen without any power consumption requirement. The results of this study are promising for the application of O2 reduction in diesel HDVs.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11857302/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Development and Analysis of a Preliminary Electrodialysis Process for the Purification of Complex Lithium Solutions for the Production of Li₂CO₃ and LiOH.

IF 3.3 4区工程技术

Membranes Pub Date : 2025-02-05 DOI: 10.3390/membranes15020050

Alonso González, Geovanna Choque, Mario Grágeda, Svetlana Ushak

{"title":"The Development and Analysis of a Preliminary Electrodialysis Process for the Purification of Complex Lithium Solutions for the Production of Li2CO3 and LiOH.","authors":"Alonso González, Geovanna Choque, Mario Grágeda, Svetlana Ushak","doi":"10.3390/membranes15020050","DOIUrl":"10.3390/membranes15020050","url":null,"abstract":"Direct lithium extraction (DLE) is emerging as a promising alternative to brine extraction although it requires further processing to obtain high-quality products suitable for various applications. This study focused on developing a process to concentrate and purify complex LiCl solutions obtained through direct lithium extraction (DLE). Two different chemical compositions of complex LiCl solutions were used, dividing the study into three stages. In the first part, lithium was concentrated to 1% by mass by evaporation. In the second, electrodialysis was used to alkalinize the LiCl solution and remove magnesium and calcium impurities under different current densities. The best results obtained were magnesium and calcium removals of 99.8% and 98.0%, respectively, and lithium recoveries of 99% and 96%. In the third stage, the selectivity of two different commercial cationic membranes (Nafion 117 and Neosepta CMS) was evaluated to separate Li+, K+, and Na+ cations under different current densities and volumetric flow rates. The Neosepta CMS membrane demonstrated higher lithium recovery. This study evaluated the quality of the purified lithium-rich solution and its potential use both in the production of Li2CO3 as well as in the electrochemical production of LiOH.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11857839/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phosphate Tailings and Clay-Based Ceramic Membranes: Tailoring Microstructure and Filtration Properties via Alkali Activation.

IF 3.3 4区工程技术

Membranes Pub Date : 2025-02-05 DOI: 10.3390/membranes15020052

Amine El Azizi, Hanane El Harouachi, Dounia Ahoudi, Soundouss Maliki, Mohammed Mansori, Mohamed Loutou

{"title":"Phosphate Tailings and Clay-Based Ceramic Membranes: Tailoring Microstructure and Filtration Properties via Alkali Activation.","authors":"Amine El Azizi, Hanane El Harouachi, Dounia Ahoudi, Soundouss Maliki, Mohammed Mansori, Mohamed Loutou","doi":"10.3390/membranes15020052","DOIUrl":"10.3390/membranes15020052","url":null,"abstract":"The increasing demand for sustainable water treatment technologies has driven the development of advanced ceramic membranes with tailored properties. This study explores the fabrication of ceramic membranes using phosphate tailings and clay lithologies as alternative raw materials, offering a sustainable and cost-effective approach to membrane production. The focus is on tailoring membrane porosity through the deposition of multilayered alkali-activated coatings, leveraging geopolymerization chemistry to enhance structural and functional performance. The manufactured ceramic membranes were investigated using X-ray fluorescence spectrometry, X-ray diffraction, thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, and a filtration test pilot. Results revealed the suitability of both phosphate tailing and the clay for membrane processing, while alkali activation effectively modulates the membrane's porosity (from 1-10 μm to 0.1-1 μm) and mechanical strength (up to 20 MPa). Both tailored and untailored membranes demonstrated favorable performance. Key findings include the formation of a well-interconnected pore network and improved compressive strength, which resulted in sustained filtration performance under challenging operational conditions. The membranes demonstrated their suitability for environmental and industrial applications by achieving high efficiency in industrial effluent filtration tests.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11857741/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Removal of Microplastics from Laundry Wastewater Using Coagulation and Membrane Combination: A Laboratory-Scale Study.

IF 3.3 4区工程技术

Membranes Pub Date : 2025-02-04 DOI: 10.3390/membranes15020047

Thi Trang Luu, Dai Quyet Truong, Van Nam Nguyen, Sanghyun Jeong, Thi Thu Trang Nguyen, Van Manh Do, Saravanamuthu Vigneswaran, Tien Vinh Nguyen

{"title":"Removal of Microplastics from Laundry Wastewater Using Coagulation and Membrane Combination: A Laboratory-Scale Study.","authors":"Thi Trang Luu, Dai Quyet Truong, Van Nam Nguyen, Sanghyun Jeong, Thi Thu Trang Nguyen, Van Manh Do, Saravanamuthu Vigneswaran, Tien Vinh Nguyen","doi":"10.3390/membranes15020047","DOIUrl":"10.3390/membranes15020047","url":null,"abstract":"Microplastic (MP) pollution has recently emerged as a critical global environmental issue. Laundry wastewater is a significant contributor to MP pollution, containing high concentrations of MPs. Although coagulation has recently been widely applied to remove MPs from such wastewater, its efficiency remains poor, and the removal mechanisms are not yet fully elucidated. In this study, the occurrence and characteristics of MPs in raw domestic laundry wastewater were investigated. The coagulation process was combined with ultrafiltration (UF) membrane filtration to enhance MP removal. The results showed that the concentrations of MPs in laundry wastewater ranged from 9000 to 11,000 particles/L, with fibrous particles constituting the majority (42.6%) and polyester accounting for 68.2% of detected MPs. Using aluminium chloride and ferric chloride as coagulants, maximum removal efficiencies of 91.7 and 98.3% were achieved, respectively. Mechanistic analysis revealed that charge neutralization played a dominant role during coagulation. Fourier transform infrared spectroscopy further demonstrated the formation of new functional groups, substituted benzene rings, and the presence of Fe-O and Al-O bonds, indicating the interaction between MPs and coagulants. Furthermore, the UF membrane was used to remove fibrous MPs and MPs with low densities. These MPs had not been removed with pre-coagulation. The removal efficiency of these MPs reached 96 ± 2%, reducing their concentration to only 60 particles/L in the UF permeate. These findings highlight the synergistic potential of coagulation and UF membrane filtration for effective MP removal and provide a valuable reference for advancing wastewater treatment technologies targeting MP pollution.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11857315/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insights on Hydrogen Bond Network of Water in Phospholipid Membranes: An Infrared Study at Varying Hydration.

IF 3.3 4区工程技术

Membranes Pub Date : 2025-02-04 DOI: 10.3390/membranes15020046

Valeria Conti Nibali, Caterina Branca, Ulderico Wanderlingh, Rosaria Verduci, Elisa Bonaccorso, Andrea Ciccolo, Giovanna D'Angelo

{"title":"Insights on Hydrogen Bond Network of Water in Phospholipid Membranes: An Infrared Study at Varying Hydration.","authors":"Valeria Conti Nibali, Caterina Branca, Ulderico Wanderlingh, Rosaria Verduci, Elisa Bonaccorso, Andrea Ciccolo, Giovanna D'Angelo","doi":"10.3390/membranes15020046","DOIUrl":"10.3390/membranes15020046","url":null,"abstract":"Water in membrane interphases is vital for cellular biological functions, but despite its importance, the structure and function of biological water remain elusive. Here, by studying the OH stretching mode in partially hydrated lipid multilayers by FTIR measurements, relevant information on the water structure near the surface with lipid membranes has been gathered. The water hydrogen bond network is highly perturbed in the first layers that are in contact with the lipid membrane, exhibiting strong deviations from tetrahedral symmetry and a significant number of defects, such as isolated water molecules and a large number of hydrogen-bonded water dimers in the interphase region. These findings support the hypothesis that water chains form in phospholipid membranes, and are involved in the proton transfer across lipid bilayers by phosphate groups of opposing lipids. Furthermore, we have determined that even at very low hydration levels, a small amount of water is embedded within the confined spaces of the hydrocarbon region of phospholipid bilayers, which could potentially contribute to the structural stability of the lipid membrane.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11857459/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrospun Membranes Loaded with Melanin Derived from Pecan Nutshell (Carya illinoinensis) Residues for Skin-Care Applications.

IF 3.3 4区工程技术

Membranes Pub Date : 2025-02-03 DOI: 10.3390/membranes15020044

Michell García-García, Jesús Salvador Jaime-Ferrer, Fernanda Nayeli Medrano-Lango, Elizabeth Quintana-Rodríguez, Tonatiu Campos-García, Erika Rodríguez-Sevilla, Domancar Orona-Tamayo

{"title":"Electrospun Membranes Loaded with Melanin Derived from Pecan Nutshell (Carya illinoinensis) Residues for Skin-Care Applications.","authors":"Michell García-García, Jesús Salvador Jaime-Ferrer, Fernanda Nayeli Medrano-Lango, Elizabeth Quintana-Rodríguez, Tonatiu Campos-García, Erika Rodríguez-Sevilla, Domancar Orona-Tamayo","doi":"10.3390/membranes15020044","DOIUrl":"10.3390/membranes15020044","url":null,"abstract":"This study investigates the incorporation of melanin extracted from pecan nutshell residues into a polyacrylonitrile (PAN) matrix during the electrospinning of microfiber membranes. Melanin concentrations of 0.5, 2.0, and 5.0% w/w were incorporated to enhance the physicochemical and biological properties of the fibers. The melanin-loaded PAN fibers exhibited significant antioxidant activity against DPPH and ABTS radicals, with scavenging rates ranging from 46.58% to 62.77% and 41.02% to 82.36%, respectively, while unmodified PAN fibers showed no activity. Furthermore, the melanin-loaded membranes demonstrated antimicrobial effects. The membranes also exhibited an important enzyme inhibition activity against collagenase (37%), hyaluronidase (22%), tyrosinase (36%), and elastase (33%). Molecular docking studies reveal different potential amino acids of the active sites of aging enzymes that interact strongly with melanin pigment, particularly collagenase, followed by hyaluronidase, tyrosinase, and elastase. These results suggest that the novel melanin-loaded PAN membranes possess promising bioactive properties with potential applications in different skin-care applications.","PeriodicalId":18410,"journal":{"name":"Membranes","volume":"15 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11857193/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0