ACS Applied Polymer Materials最新文献

{"title":"Development of Poly(l-lactic acid)-Yellow Propolis Membranes for Antioxidant Applications","authors":"Letícia S Contieri,&nbsp;Catarina Vieira,&nbsp;Bárbara M. C. Vaz,&nbsp;Diana Cláudia Gouveia Alves Pinto,&nbsp;Maurício Rostagno,&nbsp;Sónia P. M. Ventura,&nbsp;Vitor Sencadas and Leonardo Mendes de SouzaMesquita*,&nbsp;","doi":"10.1021/acsapm.4c0189910.1021/acsapm.4c01899","DOIUrl":"https://doi.org/10.1021/acsapm.4c01899https://doi.org/10.1021/acsapm.4c01899","url":null,"abstract":"<p >Propolis-based products, particularly those high in phenolic compounds, are extensively utilized in pharmaceutical applications for their broad therapeutic and health benefits. To improve the delivery and stability of these compounds, researchers are exploring biocompatible materials for encapsulating natural extracts. Polylactic acid (PLA) stands out as a promising biopolymer due to its biocompatibility, nontoxicity, exceptional biodegradability, and favorable mechanical properties, making it well-suited for a range of medical and pharmaceutical applications. This study aimed to develop PLA-based membranes incorporating raw yellow propolis through electrospinning and to identify the maximum feasible concentration of raw propolis that can be incorporated into PLA membranes. The chemical composition of the yellow propolis was analyzed using chromatographic techniques coupled with a photodiode array detector and mass spectrometry (UHPLC-PDA-MS/MS), highlighting its rich array of phenolic compounds, which are known for their significant antioxidant properties. The membranes were thoroughly characterized with Fourier transform infrared spectroscopy and scanning electron microscopy, confirming the successful incorporation of propolis into the PLA membranes, particularly in the sample containing 25% propolis (w/w). Total phenolic content, antioxidant activity, and bioadhesion were also evaluated. Results showed that the membrane with 25% propolis (w/w) exhibits skin-adhesive properties and huge antioxidant activity due to its phenolic content. These findings suggest that the membrane has strong potential for future biomedical applications, where antioxidant activity is essential.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 23","pages":"14290–14299 14290–14299"},"PeriodicalIF":4.4,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsapm.4c01899","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Preparation and Performance of Multifunctional Composite Hydrogel Based on Xanthate Lignin/Chitosan/Poly(acrylic acid) with Underwater Adhesion and Sensing Properties","authors":"Xueying Jiao,&nbsp;Amatjan Sawut*,&nbsp;Rena Simayi* and Ayiguzaili Abudiwayiti,&nbsp;","doi":"10.1021/acsapm.4c0293510.1021/acsapm.4c02935","DOIUrl":"https://doi.org/10.1021/acsapm.4c02935https://doi.org/10.1021/acsapm.4c02935","url":null,"abstract":"<p >Multifunctional hydrogel materials with self-healing ability, underwater adhesion, and electrical conductivity have potential application value in many fields. In this study, an LS/CS/PAA composite hydrogel was prepared by one-pot method using lignosulfonate (LS), acrylic acid (AA), and chitosan (CS) as raw materials. The hydrogels are characterized by thermal gravimetric (TG), Fourier transform infrared (FTIR), and scanning electron microscope (SEM). The rich sulfonic acid groups, carboxyl groups, hydroxyl groups, and phenolic hydroxyl groups in the hydrogel give it special properties, including excellent adhesion, electrical conductivity, sensing ability, and humidity response power generation ability. LS/CS/PAA hydrogels strongly adhere to a variety of hydrophobic or hydrophilic surfaces with excellent self-adhesive properties, such as plexiglass, paper, and plastic, and obtained adhesion strengths of up to 324.59, 196.13, and 255.76 kPa, respectively, in tests. In particular, the hydrogel showed significantly improved underwater adhesion strength in different solutions, increasing by up to 33.17% in 10 min and maintaining a stable bonding effect. In addition, LS/CS/PAA hydrogels are attractive in humidity sensing power generation with a maximum output voltage of 40.7 mV. Its good adhesion and antibacterial properties make the material more suitable for the skin and effectively inhibit bacterial growth. Its excellent ion conductivity shows high sensitivity when detecting curved body movements. In summary, this multifunctional LS/CS/PAA composite hydrogel will play an important role in many fields such as biomedicine, sensor, environmental monitoring, and energy conversion.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 23","pages":"14726–14739 14726–14739"},"PeriodicalIF":4.4,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combining Electrospinning and Photoinduced Reactions to Fabricate Cytocompatible and Antibacterial Ag Nanoparticle-Decorated Polymeric Membranes","authors":"Parnian Kianfar,&nbsp;Sara Dalle Vacche,&nbsp;Roberta Bongiovanni,&nbsp;Chiara Mollea,&nbsp;Francesca Bosco,&nbsp;Ziba Najmi,&nbsp;Alessandro C. Scalia,&nbsp;Andrea Cochis and Alessandra Vitale*,&nbsp;","doi":"10.1021/acsapm.4c0295310.1021/acsapm.4c02953","DOIUrl":"https://doi.org/10.1021/acsapm.4c02953https://doi.org/10.1021/acsapm.4c02953","url":null,"abstract":"<p >Composite nanofibrous membranes hold significant potential for the development of innovative biomedical materials and applications as their properties can be tuned by combining the synergistic effects of the nanofiller and the polymer matrix. Moreover, the nanofibrous structure can further enhance this feature thanks to the extremely high functional surface area. In the present work, a simple and fast method for the preparation of electrospun composite membranes based on cross-linked poly(ethylene oxide) (PEO) nanofibers and silver nanoparticles (Ag NPs) is proposed. For this purpose, a precursor of the Ag NPs (i.e., AgNO₃) is introduced into the aqueous solution of PEO in the presence of a suitable photoinitiator and a photo-cross-linker. Electrospinning of the solution is carried out, and the subsequent irradiation of the electrospun mat allows the simultaneous photoinduced cross-linking of PEO and the photoinduced synthesis of Ag NPs. The <i>in situ</i> generation of Ag NPs is confirmed through different characterization techniques (i.e., UV–vis spectroscopy, dynamic light scattering, and scanning electron microscopy). The structural, morphological, and mechanical properties of the resulting electrospun composite nanofibers are analyzed, and the effect of the content of the Ag NP precursor is evaluated. It is demonstrated that PEO fibers are chemically resistant and mechanically robust thanks to cross-linking, while Ag NPs induce significant antibacterial activity to the electrospun materials, which are also shown to be noncytotoxic by using both human fibroblasts and 3D-reconstructed skin equivalents. The proposed PEO-based nanofibrous mats decorated with Ag NPs thus exhibit promising potential as biomedical materials, especially for wound healing applications.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 23","pages":"14749–14759 14749–14759"},"PeriodicalIF":4.4,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142844096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Copper-Loaded Microporous Chitosan Generated within a 3D-Printed Polylactic Acid-Pearl Scaffold: Structure and Performance","authors":"Wang Guo*,&nbsp;Yufeng Mao,&nbsp;Xinru Tang,&nbsp;Enyu Wang,&nbsp;Ziying Peng,&nbsp;Yunlei Wu,&nbsp;Mingzhi Zhang,&nbsp;Feng Guo,&nbsp;Huaming Mai,&nbsp;Yong Zhang,&nbsp;Wenjie Zhang,&nbsp;Hui You* and Yu Long*,&nbsp;","doi":"10.1021/acsapm.4c0254110.1021/acsapm.4c02541","DOIUrl":"https://doi.org/10.1021/acsapm.4c02541https://doi.org/10.1021/acsapm.4c02541","url":null,"abstract":"<p >This study employed a combination of fused deposition modeling (FDM) 3D printing and freeze-drying techniques to fabricate a polylactic acid-pearl-chitosan-copper (PLA-P-CS/Cu) scaffold with a dual-scale porous structure and enhanced antibacterial, biological, and mechanical performance. The process began with FDM 3D printing to create a PLA-P scaffold featuring an interconnected macroporous structure with a pore size of hundreds of micrometers. Subsequently, freeze-drying was used to generate CS/Cu microporous foam with a pore size of tens of micrometers within the macroporous structure of the PLA-P scaffold. The formation of the dual-scale interconnected porous structure was confirmed through digital microscopy and scanning electron microscopy. Additionally, infrared spectroscopy and X-ray diffraction demonstrated the formation of coordination bonds between the amino and hydroxyl groups of chitosan and Cu²⁺ through chelation. Biomineralization test in simulated body fluid indicated that the PLA-P-CS/Cu dual-scale porous scaffold enhanced the nucleation, growth, and deposition of apatite by providing a larger specific surface area and sustained release of Cu²⁺. The dual-scale porous structure and Cu²⁺ release also promoted cell proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells. Antibacterial assay using the plate count method revealed that the Cu-loaded scaffold exhibited a 66.72–82.84% antibacterial rate against <i>Escherichia coli</i>, depending on the Cu loading amount. Finally, a mechanical test indicated that the compressive strength and modulus of the dual-scale porous scaffold were as high as 17.23 and 295.10 MPa, respectively. This study provides a strategy for developing gradient porous bone scaffolds with enhanced antibacterial, biological, and mechanical properties through comprehensive optimization of the material design, porous structure, and manufacturing processes.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 23","pages":"14505–14517 14505–14517"},"PeriodicalIF":4.4,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fluorescent Polyamides with Piperazine and Valerolactam Structures Prepared by the Modified Ugi Reaction and Its Specific Detection to NO2– Ions","authors":"Yunfei Liu,&nbsp;Yayu Feng,&nbsp;Yue Sun,&nbsp;Meijing Zhang,&nbsp;Pengfei Zhang,&nbsp;Ronghui Zhao and Kuilin Deng*,&nbsp;","doi":"10.1021/acsapm.4c0250410.1021/acsapm.4c02504","DOIUrl":"https://doi.org/10.1021/acsapm.4c02504https://doi.org/10.1021/acsapm.4c02504","url":null,"abstract":"<p >In this investigation, a nonconjugated fluorescent polyamide with piperazine and valerolactam moieties (PAM–PV) has been synthesized by the modified Ugi polymerization using 1,4-bis(3-aminopropyl)piperazine, levulinic acid, and 1,4-bis(3-isocyanopropyl)piperazine as monomers. In the polymerization, the special construction of levulinic acid leads to the formation of valerolactam on PAM–PV chains via the Mumm rearrangement. PAM–PV shows a strong fluorescence emission at 428 nm due to the intramolecular aggregation of piperazine and valerolactam moieties along the backbone. Impressively, PAM–PV can specifically detect NO₂^– ions via static quenching with a linear range of 10^–6–10^–5 M and a detection limit of 0.6 μM (0.0276 mg/L), which was far less than the minimum allowable concentration of 3 mg/L for NO₂^– in drinking water specified by WHO. Furthermore, the several common anions and cations have no interference effects on the specific detection of PAM–PV to NO₂^– ions. The quenching mechanism of NO₂^– and PAM–PV by FTIR, UV, and ¹H NMR measurements indicates that the strong electrostatic interaction between NO₂^– and PAM–PV makes the macromolecular chains more relaxed and outstretched, leading to a formation of a nonfluorescent complex. Moreover, the practical detection of NO₂^– in the three water bodies, sauerkraut, and ham sausage and the fabrication of a portable detecting paper to NO₂^– ions were conducted in this experiment.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 23","pages":"14458–14468 14458–14468"},"PeriodicalIF":4.4,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142843849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tough Porous Hydrogels for Ultrasensitive Naked-Eye and Fluorescence Dual-Mode Detection of Iron(III)","authors":"Liang Chen*,&nbsp;Yao Li,&nbsp;Xincheng Zhang,&nbsp;Yuanzhi Cui,&nbsp;Da Shi,&nbsp;Yan Wang,&nbsp;Ping Rao*,&nbsp;Liping Zhao*,&nbsp;Hua Guo,&nbsp;Mingming Guo and Wenshan Ren*,&nbsp;","doi":"10.1021/acsapm.4c0265110.1021/acsapm.4c02651","DOIUrl":"https://doi.org/10.1021/acsapm.4c02651https://doi.org/10.1021/acsapm.4c02651","url":null,"abstract":"<p >Iron ions (Fe³⁺) play a crucial role in a variety of environmental, industrial, and biological processes. However, elevated concentrations of iron ions can lead to significant issues, such as environmental pollution, health risks, and accelerated material degradation, including metal corrosion. Therefore, the ability to rapidly and accurately detect Fe³⁺ ions at low concentrations is essential to ensure environmental safety, public health, and industrial stability. In this study, a series of tough luminescent porous hydrogels were fabricated through the cryogelation method by introducing 4′-(<i>N</i>-propenyl-4-pyridinio)-2,2′:6′,2″-terpyridine perchlorate (PPTP) into a hydrogel network featuring multihydrogen bonding. The obtained porous hydrogels exhibit not only outstanding fracture strength but also rapid highly sensitive detection of low concentrations of Fe³⁺ ions. Notably, the hydrogel sensors achieved a theoretical limit of detection (LOD) of 0.34 μM within just 10 s, which is acceptable within the limit of the Minister of Health of the People’s Republic of China. Additionally, a distinctive feature of this porous hydrogel is its ability to visually detect iron ion content through a color change from white to light green, providing a simple and effective method for real-time monitoring of early-stage stainless-steel corrosion. This combination of ease of fabrication, high sensitivity in fluorescence detection, colorimetric response, and convenient usage makes the P(MNAGA-<i>co</i>-HEMA-<i>co</i>-PPTP) hydrogel a highly effective fluorescent chemosensor for Fe³⁺ ions.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 23","pages":"14548–14556 14548–14556"},"PeriodicalIF":4.4,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142850923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In Situ Electrochemical Polymerized Bipolar-Type Poly(1,5-diaminonaphthalene) Cathode for High-Performance Aqueous Zinc-Organic Batteries","authors":"Yanrong Wang*,&nbsp;Chenxi Zheng,&nbsp;Mengfan Zhao,&nbsp;Xuemei Wang,&nbsp;Yaqiong Su*,&nbsp;Guowang Diao and Caixing Wang*,&nbsp;","doi":"10.1021/acsapm.4c0335210.1021/acsapm.4c03352","DOIUrl":"https://doi.org/10.1021/acsapm.4c03352https://doi.org/10.1021/acsapm.4c03352","url":null,"abstract":"<p >Electroactive organic materials, characterized by their flexible molecular architecture and rapid reaction kinetics, demonstrate an enormous potential for applications in aqueous zinc-ion batteries (AZIBs). However, small-molecule organic electrode materials often encounter dissolution-induced capacity decay, whereas polymeric counterparts, despite their limited solubility in electrolytes, confront poor conductivity issues. To tackle these challenges, optimizing molecular structures and synthesis routes is paramount. In this study, we have elaborately designed an electrochemical polymerized poly(1,5-diaminonaphthalene), termed PDAN-1, as a high-performance cathode material for AZIBs. Compared to the chemically polymerized counterpart, termed PDAN-2, PDAN-1 exhibits significantly enhanced electrochemical performance, owing to its markedly reduced electrochemical resistance. Specifically, the PDAN-1 cathode achieves a high discharge capacity of 243 mAh g^–1 at a current density of 0.1 A g^–1. Additionally, it exhibited long-term cycle stability, retaining over 85% of its capacity even after 2700 cycles at 2 A g^–1. Impressively, even under a substantial mass loading of 10 mg cm^–2, PDAN-1 maintains a discharge capacity of 170 mAh g^–1, underscoring its vast potential for practical applications in AZIBs. Furthermore, ex situ analyses and density functional theory calculations collectively reveal that the PDAN-1 cathode operates through a bipolar-type charge storage mechanism, providing insights into its unique electrochemical behavior and further validating its suitability for AZIB applications.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 23","pages":"14928–14938 14928–14938"},"PeriodicalIF":4.4,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142843769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-Chain-Branched Polypropylene with an Ester Group as an Effective Compatibilizer To Improve the Performance of PP/PET Blends","authors":"Yehan Yang,&nbsp;Mengxia Xu,&nbsp;Zhu Luo*,&nbsp;Ruhui He,&nbsp;Jikai Xie,&nbsp;Shenglong Yang,&nbsp;Hu Chen and Huaibin Li,&nbsp;","doi":"10.1021/acsapm.4c0271310.1021/acsapm.4c02713","DOIUrl":"https://doi.org/10.1021/acsapm.4c02713https://doi.org/10.1021/acsapm.4c02713","url":null,"abstract":"<p >To address the compatibility challenges between polypropylene (PP) and poly(ethylene terephthalate) (PET), a long-chain-branched polypropylene compatibilizer featuring ester groups (LCB-PP-E) was synthesized from PP and pentaerythritol triacrylate (PETA), facilitated by the initiator dicumyl peroxide. The structure of LCB-PP-E was characterized by using infrared spectroscopy, rheology, and melt flow index analysis, while potential reaction mechanisms were discussed. The morphology of the blend was examined by scanning electron microscopy and Raman spectroscopy. The effects of LCB-PP-E on the thermodynamic and crystallization behavior of PP/PET blends were studied by dynamic mechanical analysis, differential scanning calorimetry, and polarizing microscopy. LCB-PP-E sampled at the reaction peak point exhibited a longer branched PP chain compared to that of LCB-PP-E obtained at the balance torque, facilitating better entanglement with PP macromolecules. Furthermore, the ester groups on LCB-PP-E engaged in transesterification reactions with the ester groups on the PET chains. The combined effects of these interactions effectively reduced the interfacial tension between the two phases, resulting in a decreased size of the dispersed PET phase and a more uniform distribution. Additionally, the introduction of LCB-PP-E significantly narrowed the crystallization and glass transition temperature difference between the phases. The enhanced compatibility led to an increase in elongation at break, demonstrating a transition of the blend from a brittle material to a ductile material. This compatibilization system shows substantial potential for high-quality applications in PP/PET recycled plastics.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 23","pages":"14580–14589 14580–14589"},"PeriodicalIF":4.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142843483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rational Design of Hydrogel Polymer Nanoparticles Based on a Receptor Recognition Mechanism of Endotoxin and Its Application in Endotoxin Removal","authors":"Zihao Wan,&nbsp;Yunli Yu,&nbsp;Qiaolian Cheng,&nbsp;Weicheng Tang,&nbsp;Wenfeng Tan and Mingming Liu*,&nbsp;","doi":"10.1021/acsapm.4c0254510.1021/acsapm.4c02545","DOIUrl":"https://doi.org/10.1021/acsapm.4c02545https://doi.org/10.1021/acsapm.4c02545","url":null,"abstract":"<p >Endotoxins, also known as lipopolysaccharides (LPS), are common exogenous pyrogens with notable pathogenic properties. The removal of endotoxins from water is essential due to the potential health hazards posed by exposure to bacterial or cyanobacterial endotoxins. Herein, we report an abiotic affinity material, a hydrogel polymer nanoparticle (HNP) as a potential absorbent for endotoxin removal. The polymer affinity ligand was discovered via a combination of rational design and directed evolution. Under the guidance of an endotoxin–receptor recognition mechanism, several receptor-like hydrogel polymer nanoparticle libraries were rationally created by incorporating candidate monomers with functionalities complementary either to the negatively charged phosphate groups or the hydrophobic fatty acid chains in endotoxin structure. <b>MArg-HNP 4</b> that has high affinity, rapid kinetics, pH-responsivity, and broad-spectrum selectivity to LPS derivatives was identified by directed evolution, namely, multiple rounds of library construction and affinity screening. The screened <b>MArg-HNP 4</b> was then <i>in situ</i> polymerized on the surface of SiO₂ to prepare adsorption columns for the removal of endotoxin from water. The homemade column has LPS removal efficacy comparable to that packed with commercial ToxinEraser resin modified with polymyxin B. It also exhibits excellent regeneration performance, favorable biological safety, high cost-effectiveness, facile chemical synthesis, and high stability and robustness. These attributes make <b>SiO</b>_<b>2</b><b>@MArg-HNP 4</b> a promising alternative to existing commercial endotoxin removal columns.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 23","pages":"14490–14504 14490–14504"},"PeriodicalIF":4.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"White Photothermal Poly(tetrafluoroethylene-co-hexafluoropropylene-co-vinylidene fluoride)/Zirconium Carbide Porous Fiber Fabrics with Waterproof, Breathable, Acid and Alkali Resistant, Flame Retardant, and Ultraviolet Protective Properties","authors":"Shihua Qin,&nbsp;Zeping Duan,&nbsp;Shiying Guo,&nbsp;Aming Wang,&nbsp;Dawei Li,&nbsp;Haoxuan Li,&nbsp;Bingyao Deng,&nbsp;Qingsheng Liu*,&nbsp;Helan Xu and Li Xing,&nbsp;","doi":"10.1021/acsapm.4c0262610.1021/acsapm.4c02626","DOIUrl":"https://doi.org/10.1021/acsapm.4c02626https://doi.org/10.1021/acsapm.4c02626","url":null,"abstract":"<p >Traditional methods for staying warm have a negative impact on outdoor work and result in substantial resource consumption. In contrast, photothermal conversion fiber fabrics utilize solar energy to regulate the temperature, providing a sustainable solution for warmth. Here, porous poly(tetrafluoroethylene-<i>co</i>-hexafluoropropylene-<i>co</i>-vinylidene fluoride) (THV)/zirconium carbide (ZrC) fiber fabrics were fabricated via a one-step electrospinning process based on water-vapor-induced phase separation using a binary solvent system of ethyl acetate and acetone. At a room temperature of approximately 5 °C, the THV/ZrC fiber fabric with a ZrC content of 0.5% can rapidly heat up to 52.3 °C within 30 s under 80 mW/cm² illumination. The excellent photothermal properties combined with superhydrophobicity endowed it with significant deicing capabilities. More importantly, the multifunctional properties, including self-cleaning, waterproofing, breathability, flame retardancy, acid and alkali resistance, and ultraviolet (UV) protection, made the fiber fabric safe and comfortable to wear. Additionally, its white appearance enhances its aesthetic appeal.</p>","PeriodicalId":7,"journal":{"name":"ACS Applied Polymer Materials","volume":"6 23","pages":"14518–14528 14518–14528"},"PeriodicalIF":4.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142851011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}