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Cholesterol Nanofiber Patches with Sustainable Oil Delivery Eliminate Inflammation in Atopic Skin. 可持续输油的胆固醇纳米纤维贴片可消除特应性皮肤炎症
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c09400
Ewa A Sroczyk, Aleksandra Tarasiuk, Marcin Talar, Gregory C Rutledge, Adam Makaro, Zofia Misztal, Maria Wołyniak, Krzysztof Berniak, Maciej Sałaga, Jakub Fichna, Urszula Stachewicz
{"title":"Cholesterol Nanofiber Patches with Sustainable Oil Delivery Eliminate Inflammation in Atopic Skin.","authors":"Ewa A Sroczyk, Aleksandra Tarasiuk, Marcin Talar, Gregory C Rutledge, Adam Makaro, Zofia Misztal, Maria Wołyniak, Krzysztof Berniak, Maciej Sałaga, Jakub Fichna, Urszula Stachewicz","doi":"10.1021/acsami.4c09400","DOIUrl":"https://doi.org/10.1021/acsami.4c09400","url":null,"abstract":"<p><p>Atopic skin is dry and itchy and lacks integrity. Impaired skin barrier results from altered lipid composition of the skin. A crucial skin lipid, cholesterol, provides flexibility and homeostasis of the cell membranes' lipid bilayer. Cholesterol-based creams and natural oils, especially blackcurrant seed oil, are beneficial for skin care as they hydrate the skin and improve its integrity. The major atopic symptom, skin dryness, can be overcome by the application of porous patches enhanced with cholesterol and natural oil. The base of the patches is constructed of polyimide (PI) nanofibers with cholesterol coatings and externally added blackcurrant seed oil. The presence of cholesterol in PI mats hinders the passage of oil through the patches to the skin, resulting in sustained and prolonged skin hydration. The theoretical and numerical investigations of oil dynamics in porous mats confirmed the experimental results, showing a prolonged skin hydration effect up to 6 h. Additionally, as demonstrated by in vivo tests on atopic mice, cholesterol patches lower serum immunoglobulin E levels and expression of proinflammatory cytokines in the skin, thereby accelerating skin healing. Our results hold great promise for the long-term application of the patches in atopic dermatitis treatment.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Chitosan Coating as a Strategy to Increase Postemergent Herbicidal Efficiency and Alter the Interaction of Nanoatrazine with Bidens pilosa Plants. 壳聚糖涂层作为一种策略,可提高苗后除草效率并改变纳米特拉嗪(Nanoatrazine)与柔毛鸭跖草(Bidens pilosa)的相互作用。
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c03800
Bruno T Sousa, Lucas B Carvalho, Ana C Preisler, Telma Saraiva-Santos, Jhones L Oliveira, Waldiceu A Verri, Giliardi Dalazen, Leonardo F Fraceto, Halley Oliveira
{"title":"Chitosan Coating as a Strategy to Increase Postemergent Herbicidal Efficiency and Alter the Interaction of Nanoatrazine with <i>Bidens pilosa</i> Plants.","authors":"Bruno T Sousa, Lucas B Carvalho, Ana C Preisler, Telma Saraiva-Santos, Jhones L Oliveira, Waldiceu A Verri, Giliardi Dalazen, Leonardo F Fraceto, Halley Oliveira","doi":"10.1021/acsami.4c03800","DOIUrl":"https://doi.org/10.1021/acsami.4c03800","url":null,"abstract":"<p><p>The atrazine nanodelivery system, composed of poly(ε-caprolactone) (PCL+ATZ) nanocapsules (NCs), has demonstrated efficient delivery of the active ingredient to target plants in previous studies, leading to greater herbicide effectiveness than conventional formulations. Established nanosystems can be enhanced or modified to generate new biological activity patterns. Therefore, this study aimed to evaluate the effect of chitosan coating of PCL+ATZ NCs on herbicidal activity and interaction mechanisms with <i>Bidens pilosa</i> plants. Chitosan-coated NCs (PCL/CS+ATZ) were synthesized and characterized for size, zeta potential, polydispersity, and encapsulation efficiency. Herbicidal efficiency was assessed in postemergence greenhouse trials, comparing the effects of PCL/CS+ATZ NCs (coated), PCL+ATZ NCs (uncoated), and conventional atrazine (ATZ) on photosystem II (PSII) activity and weed control. Using a hydroponic system, we evaluated the root absorption and shoot translocation of fluorescently labeled NCs. PCL/CS+ATZ presented a positive zeta potential (25 mV), a size of 200 nm, and an efficiency of atrazine encapsulation higher than 90%. The postemergent herbicidal activity assay showed an efficiency gain of PSII activity inhibition of up to 58% compared to ATZ and PCL+ATZ at 96 h postapplication. The evaluation of weed control 14 days after application ratified the positive effect of chitosan coating on herbicidal activity, as the application of PCL/CS+ATZ at 1000 g of a.i. ha<sup>-1</sup> resulted in better control than ATZ at 2000 g of a.i. ha<sup>-1</sup> and PCL+ATZ at 1000 g of a.i. ha<sup>-1</sup>. In the hydroponic experiment, chitosan-coated NCs labeled with a fluorescent probe accumulated in the root cortex, with a small quantity reaching the vascular cylinder and leaves up to 72 h after exposure. This behavior resulted in lower leaf atrazine levels and PSII inhibition than ATZ. In summary, chitosan coating of nanoatrazine improved the herbicidal activity against <i>B. pilosa</i> plants when applied to the leaves but negatively affected the root-to-shoot translocation of the herbicide. This study opens avenues for further investigations to improve and modify established nanosystems, paving the way for developing novel biological activity patterns.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Covalent Functionalization of Silicon with Plasma-Grown "Fuzzy" Graphene: Robust Aqueous Photoelectrodes for CO2 Reduction by Molecular Catalysts. 等离子体生长的 "模糊 "石墨烯对硅的共价官能化:通过分子催化剂还原二氧化碳的坚固水性光电极。
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c04691
Oluwaseun A Oyetade, Yingqiao Wang, Shi He, Hannah R M Margavio, Samuel R Bottum, Conor L Rooney, Hailiang Wang, Carrie L Donley, Gregory N Parsons, Tzahi Cohen-Karni, James F Cahoon
{"title":"Covalent Functionalization of Silicon with Plasma-Grown \"Fuzzy\" Graphene: Robust Aqueous Photoelectrodes for CO<sub>2</sub> Reduction by Molecular Catalysts.","authors":"Oluwaseun A Oyetade, Yingqiao Wang, Shi He, Hannah R M Margavio, Samuel R Bottum, Conor L Rooney, Hailiang Wang, Carrie L Donley, Gregory N Parsons, Tzahi Cohen-Karni, James F Cahoon","doi":"10.1021/acsami.4c04691","DOIUrl":"https://doi.org/10.1021/acsami.4c04691","url":null,"abstract":"<p><p>Carbon electrodes are ideal for electrochemistry with molecular catalysts, exhibiting facile charge transfer and good stability. Yet for solar-driven catalysis with semiconductor light absorbers, stable semiconductor/carbon interfaces can be difficult to achieve, and carbon's high optical extinction means it can only be used in ultrathin layers. Here, we demonstrate a plasma-enhanced chemical vapor deposition process that achieves well-controlled deposition of out-of-plane \"fuzzy\" graphene (FG) on thermally oxidized Si substrates. The resulting Si|FG interfaces possess a silicon oxycarbide (SiOC) interfacial layer, implying covalent bonding between Si and the FG film that is consistent with the mechanical robustness observed from the films. The FG layer is uniform and tunable in thickness and optical transparency by deposition time. Using <i>p</i>-type Si|FG substrates, noncovalent immobilization of cobalt phthalocyanine (CoPc) molecular catalysts was employed for the photoelectrochemical reduction of CO<sub>2</sub> in aqueous solution. The Si|FG|CoPc photocathodes exhibited good catalytic activity, yielding a current density of ∼1 mA/cm<sup>2</sup>, Faradaic efficiency for CO of ∼70% (balance H<sub>2</sub>), and stable photocurrent for at least 30 h at -1.5 V vs Ag/AgCl under 1-sun illumination. The results suggest that plasma-deposited FG is a robust carbon electrode for molecular catalysts and suitable for further development of aqueous-stable Si photocathodes for CO<sub>2</sub> reduction.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Targeted Delivery of Quinoxaline-Based Semiconducting Polymers for Tumor Photothermal Therapy. 基于喹喔啉的半导体聚合物用于肿瘤光热疗法的靶向输送。
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c05668
Peiling Chen, Xiaoying Wang, Chunguang Zhu, Ting Guo, Chunxiao Wang, Lei Ying
{"title":"Targeted Delivery of Quinoxaline-Based Semiconducting Polymers for Tumor Photothermal Therapy.","authors":"Peiling Chen, Xiaoying Wang, Chunguang Zhu, Ting Guo, Chunxiao Wang, Lei Ying","doi":"10.1021/acsami.4c05668","DOIUrl":"https://doi.org/10.1021/acsami.4c05668","url":null,"abstract":"<p><p>Photothermal therapy (PTT) holds great potential in the field of cancer treatment due to its high specificity and low invasiveness. However, the low conversion efficiency, inadequate tumor accumulation, and limited cellular uptake continue to impede PTT effectiveness in treating tumors. The present study focuses on the utilization of quinoxaline and its nanoparticles to develop an organic semiconducting photothermal agent (PAQI-BDTT) for tumor photothermal therapy. To achieve this, PAQI-BDTT was encapsulated within liposomes modified with cyclic Arg-Gly-Asp (cRGD) peptide targeting tumors (named T-BDTT-Lipo). Notably, T-BDTT-Lipo demonstrated a positive photothermal conversion efficiency of 74% when exposed to an 808 nm laser, along with NIR-II fluorescence imaging capabilities. The efficacy of T-BDTT-Lipo in tumor tissue accumulation and precise targeting of malignant cells has been confirmed through both <i>in vitro</i> and <i>in vivo</i> experiments guided by fluorescence imaging. Under single dose and 808 nm light irradiation, T-BDTT-Lipo generated local intracellular hyperthermia at the tumor site. The elevated temperature additionally exerted a significant inhibitory effect on tumor growth and recurrence, thereby extending the survival duration of mice harboring tumors. The therapeutic nanosystem (T-BDTT-Lipo) proposed in this work demonstrates the enormous potential of semiconducting photothermal agents in photothermal therapy, laying the foundation for the next clinical application.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Controlling the Phase Distribution of Single Bromide Quasi-2-Dimensional Perovskite Crystals via Solvent Engineering for Pure-Blue Light-Emitting Diodes. 通过溶剂工程控制单溴化物准二维过氧化物晶体的相分布,实现纯蓝发光二极管。
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c06778
Seoyeon Park, Joonyun Kim, Gui-Min Kim, Jinu Park, Sooheyong Lee, Doh C Lee, Nakyung Kim, Byeong-Gwan Cho, Byungha Shin
{"title":"Controlling the Phase Distribution of Single Bromide Quasi-2-Dimensional Perovskite Crystals via Solvent Engineering for Pure-Blue Light-Emitting Diodes.","authors":"Seoyeon Park, Joonyun Kim, Gui-Min Kim, Jinu Park, Sooheyong Lee, Doh C Lee, Nakyung Kim, Byeong-Gwan Cho, Byungha Shin","doi":"10.1021/acsami.4c06778","DOIUrl":"https://doi.org/10.1021/acsami.4c06778","url":null,"abstract":"<p><p>To achieve pure-blue emission (460-470 nm), we manipulate the crystallization process of the quasi-2D perovskite, (PBA)<sub>2</sub>Cs<sub><i>n</i>-1</sub>Pb<sub><i>n</i></sub>Br<sub>3<i>n</i>+1</sub>, prepared by a solution process. The strategy involves controlling the distribution of \"<i>n</i>\" phases with different bandgaps, solely utilizing changes in the precursor's supersaturation to ensure that the desired emission aligns with the smallest bandgap. Adjustments in photoluminescence (PL) wavelength are made by changing the solute concentration and solvent polarity, as these factors heavily influence the diffusion of cations, a crucial determinant for the value of \"<i>n</i>\". Subsequently, we enhance the PL quantum yield from 31 to 51% at 461 nm using trioctylphosphine oxide (TOPO) as an additive of antisolvent, which passivates halide vacancy and promotes orderly crystal growth, leading to faster carrier transfer between phases. With these strategies, we successfully demonstrate pure-blue LEDs with a turn-on voltage of 3.3 V and an external quantum efficiency of 5.5% at an emission peak of 470 nm with a full-width at half-maximum of 31 nm.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improved Reversibility of Thin-Film Solid Oxide Cells at 500 °C by Tailoring Sputtering Processes for Depositing Yttria-Stabilized Zirconia Electrolyte. 通过调整沉积钇稳定氧化锆电解质的溅射工艺,提高薄膜固体氧化物电池在 500 °C 下的可逆性。
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c04531
Sanghoon Lee, Wonjong Yu, Yujae Jang, Sangbong Ryu, Jaewon Hwang, Gu Young Cho, Dong-Gyu Ahn, Suk Won Cha
{"title":"Improved Reversibility of Thin-Film Solid Oxide Cells at 500 °C by Tailoring Sputtering Processes for Depositing Yttria-Stabilized Zirconia Electrolyte.","authors":"Sanghoon Lee, Wonjong Yu, Yujae Jang, Sangbong Ryu, Jaewon Hwang, Gu Young Cho, Dong-Gyu Ahn, Suk Won Cha","doi":"10.1021/acsami.4c04531","DOIUrl":"https://doi.org/10.1021/acsami.4c04531","url":null,"abstract":"<p><p>The present study investigates the impact of sputtering configurations on the microstructure and crystallinity of thin-film yttria-stabilized zirconia electrolytes for anodized aluminum oxide-supported all-sputtered thin-film reversible solid oxide cells. Employing various sputtering parameters, such as target-substrate distance and substrate rotation speed, the present study reveals distinct surface characteristics and crystalline structures of thin-film yttria-stabilized zirconia. The microstructure analysis includes scanning electron microscopy and atomic force microscopy examinations, uncovering the influence of the process parameters on the surface morphology, roughness, and grain size. X-ray diffraction data illustrate the texture preferences and crystallite characteristics. The electrochemical characterization of the reversible solid oxide cells demonstrates that the optimized sputtering configuration significantly outperforms the others in both SOFC and SOEC modes, showing exceptional current densities of 964 mA/cm<sup>2</sup> at 1.3 V in electrolysis mode at 500 °C. Electrochemical impedance spectroscopy further reveals improved charge transfer reactions at the interface of the electrolyte. The enhanced electrochemical performance is attributed to the unique microstructure and crystallinity of the thin film of yttria-stabilized zirconia. The record-breaking electrolysis performance of this work at 500 °C underscores the potential of tailored sputtering parameters in optimizing the reversible solid oxide cell performance.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Two-Dimensional Metal-Organic Frameworks/Epoxy Composite Coatings with Superior O2/H2O Resistance for Anticorrosion Applications. 二维金属有机框架/环氧树脂复合涂层在防腐应用中具有优异的耐 O2/H2O 性能。
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c04843
Hao-Hsuan Hsia, You-Liang Chen, Yu-Ting Tai, Hong-Kang Tian, Chung-Wei Kung, Wei-Ren Liu
{"title":"Two-Dimensional Metal-Organic Frameworks/Epoxy Composite Coatings with Superior O<sub>2</sub>/H<sub>2</sub>O Resistance for Anticorrosion Applications.","authors":"Hao-Hsuan Hsia, You-Liang Chen, Yu-Ting Tai, Hong-Kang Tian, Chung-Wei Kung, Wei-Ren Liu","doi":"10.1021/acsami.4c04843","DOIUrl":"https://doi.org/10.1021/acsami.4c04843","url":null,"abstract":"<p><p>Corrosion protection technology plays a crucial role in preserving infrastructure, ensuring safety and reliability, and promoting long-term sustainability. In this study, we combined experiments and various analyses to investigate the mechanism of corrosion occurring on the epoxy-based anticorrosive coating containing the additive of two-dimensional (2D) and water-stable zirconium-based metal<b>-</b>organic frameworks (Zr-MOFs). By using benzoic acid as the modulator for the growth of the MOF, a 2D MOF constructed from hexazirconium clusters and BTB linkers (BTB = 1,3,5-tri(4-carboxyphenyl)benzene) with coordinated benzoate (BA-ZrBTB) can be synthesized. By coating the BA-ZrBTB/epoxy composite film (BA-ZrBTB/EP) on the surface of cold-rolled steel (CRS), we found the lowest coating roughness (RMS) of BA-ZrBTB/EP is 2.83 nm with the highest water contact angle as 99.8°, which represents the hydrophobic coating surface. Notably, the corrosion rate of the BA-ZrBTB/EP coating is 2.28 × 10<sup>-3</sup> mpy, which is 4 orders of magnitude lower than that of the CRS substrate. Moreover, the energy barrier for oxygen diffusion through BA-ZrBTB/EP coating is larger than that for epoxy coating (EP), indicating improved oxygen resistance for adding 2D Zr-MOFs as the additive. These results underscore the high efficiency and potential of BA-ZrBTB as a highly promising agent for corrosion prevention in various commercial applications. Furthermore, this study represents the first instance of applying 2D Zr-MOF materials in anticorrosion applications, opening up new possibilities for advanced corrosion-resistant coatings.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141588878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrolyte-Gated Carbon Nanotube Field-Effect Transistor-Based Sensors for Nanoplastics Detection in Seawater: A Study of the Interaction between Nanoplastics and Carbon Nanotubes. 基于电解质门控碳纳米管场效应晶体管的传感器用于检测海水中的纳米塑料:纳米塑料与碳纳米管之间的相互作用研究。
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c07692
Giulia Elli, Manuela Ciocca, Bajramshahe Shkodra, Mattia Petrelli, Martina Aurora Costa Angeli, Antonio Altana, Riccardo Carzino, Despina Fragouli, Luisa Petti, Paolo Lugli
{"title":"Electrolyte-Gated Carbon Nanotube Field-Effect Transistor-Based Sensors for Nanoplastics Detection in Seawater: A Study of the Interaction between Nanoplastics and Carbon Nanotubes.","authors":"Giulia Elli, Manuela Ciocca, Bajramshahe Shkodra, Mattia Petrelli, Martina Aurora Costa Angeli, Antonio Altana, Riccardo Carzino, Despina Fragouli, Luisa Petti, Paolo Lugli","doi":"10.1021/acsami.4c07692","DOIUrl":"https://doi.org/10.1021/acsami.4c07692","url":null,"abstract":"<p><p>Plastics accumulating in the environment are nowadays of great concern for aquatic systems and for the living organisms populating them. In this context, nanoplastics (NPs) are considered the major and most dangerous contaminants because of their small size and active surface, which allow them to interact with a variety of other molecules. Current methods used for the detection of NPs rely on bulky and expensive techniques such as spectroscopy. Here we propose, for the first time, a novel, fast, and easy-to-use sensor based on an electrolyte-gated field-effect transistor (EG-FET) with a carbon nanotube (CNT) semiconductor (EG-CNTFET) for the detection of NPs in aquatic environments, using polystyrene NPs (PS-NPs) as a model material. In particular, as a working mechanism for the EG-CNTFETs we exploited the ability of CNTs and PS to form noncovalent interactions. Indeed, in our EG-CNTFET devices, the interaction between NPs and CNTs caused a change in the electric double layers. A linear increase in the corrected on current (*<i>I</i><sub><i>ON</i></sub>) of the EG-CNTFETs, with a sensitivity of 9.68 μA/(1 mg/mL) and a linear range of detection from 0.025 to 0.25 mg/mL were observed. A π-π interaction was hypothesized to take place between the two materials, as indicated by an X-ray photoelectron spectroscopy analysis. Using artificial seawater as an electrolyte, to mimic a real-case scenario, a linear increase in *<i>I</i><sub><i>ON</i></sub> was also observed, with a sensitivity of 6.19 μA/(1 mg/mL), proving the possibility to use the developed sensor in more complex solutions, as well as in low concentrations. This study offers a starting point for future exploitation of electrochemical sensors for NP detection and identification.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Smart Cushions with Machine Learning-Enhanced Force Sensors for Pressure Injury Risk Assessment. 采用机器学习增强型力传感器的智能坐垫,用于压力伤害风险评估。
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c05964
Xinhao Xiang, Ke Zhang, Yi Qin, Xingchen Ma, Ying Dai, Xiaoqing Zhang, Wenxin Niu, Pengfei He
{"title":"Smart Cushions with Machine Learning-Enhanced Force Sensors for Pressure Injury Risk Assessment.","authors":"Xinhao Xiang, Ke Zhang, Yi Qin, Xingchen Ma, Ying Dai, Xiaoqing Zhang, Wenxin Niu, Pengfei He","doi":"10.1021/acsami.4c05964","DOIUrl":"https://doi.org/10.1021/acsami.4c05964","url":null,"abstract":"<p><p>Prolonged sitting can easily result in pressure injury (PI) for certain people who have had strokes or spinal cord injuries. There are not many methods available for tracking contact surface pressure and shear force to evaluate the PI risk. Here, we propose a smart cushion that uses two-dimensional force sensors (2D-FSs) to measure the pressure and shear force in the buttocks. A machine learning algorithm is then used to compute the shear stresses in the gluteal muscles, which helps to determine the PI risk. The 2D-FS consists of a ferroelectret coaxial sensor (FCS) unit placed atop a ferroelectret film sensor (FFS) unit, allowing it to detect both vertical and horizontal forces simultaneously. To characterize and calibrate, two experimental approaches are applied: one involves simultaneously applying two perpendicular forces, and one involves applying a single force. To separate the two forces, the 2D-FS is decoupled using a deep neural network technique. Multiple FCSs are embedded to form a smart cushion, and a genetic algorithm-optimized backpropagation neural network is proposed and trained to predict the shear strain in the buttocks to prevent PI. By tracking the danger of PI, the smart cushion based on 2D-FSs may be further connected with home-based intelligent care platforms to increase patient equality for spinal cord injury patients and lower the expense of nursing or rehabilitation care.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nanosized Zeolite P for Enhanced CO2 Adsorption Kinetics. 增强二氧化碳吸附动力学的纳米沸石 P
IF 8.3 2区 材料科学
ACS Applied Materials & Interfaces Pub Date : 2024-07-12 DOI: 10.1021/acsami.4c05988
Jaouad Al Atrach, Abdelhafid Aitblal, Abdallah Amedlous, Ying Xiong, Marie Desmurs, Valérie Ruaux, Rémy Guillet-Nicolas, Valentin Valtchev
{"title":"Nanosized Zeolite P for Enhanced CO<sub>2</sub> Adsorption Kinetics.","authors":"Jaouad Al Atrach, Abdelhafid Aitblal, Abdallah Amedlous, Ying Xiong, Marie Desmurs, Valérie Ruaux, Rémy Guillet-Nicolas, Valentin Valtchev","doi":"10.1021/acsami.4c05988","DOIUrl":"https://doi.org/10.1021/acsami.4c05988","url":null,"abstract":"<p><p>Downsizing zeolite crystals is a rational solution to address the challenge of slow adsorption rates for industrial applications. In this work, we report an environmentally friendly seed-assisted method for synthesizing nanoscale zeolite P, which has been shown to be promising for binary separations. The potassium-exchanged form of nanoagglomerates demonstrates dramatically enhanced CO<sub>2</sub> adsorption capacity, improved diffusion rate, and separation performance. Single-component CO<sub>2</sub> adsorption at equilibrium demonstrated higher CO<sub>2</sub> uptake and faster adsorption kinetics (ca. 1400 s vs >130000 s) for nanosized zeolite (KP1) compared to its micron-sized (KP2) counterpart. The diffusion kinetics analysis revealed the relation between the crystal size and the transport mechanism. The micron-sized KP2 sample was primarily governed by a surface barrier resistance mechanism, while in KP1, the diffusion process involved both intracrystalline and surface barrier resistance, facilitating the surface diffusion process and enhancing the overall diffusion rate. Breakthrough curve analysis confirmed these findings as fast and efficient CO<sub>2</sub>/N<sub>2</sub> and CO<sub>2</sub>/CH<sub>4</sub> separations recorded for the nanosized sample. The results showed remarkably enhanced breakthrough time for KP2 vs KP1 in CO<sub>2</sub>/N<sub>2</sub> (1.0 vs 10.9 min) and CO<sub>2</sub>/CH<sub>4</sub> (1.1 vs 9.9 min) mixtures, along with much higher adsorption capacity for CO<sub>2</sub>/N<sub>2</sub> (0.18 vs 1.33 mmol/g) and CO<sub>2</sub>/CH<sub>4</sub> (0.18 vs 1.21 mmol/g) mixtures. The set of experimental data demonstrates the importance of zeolite crystal engineering for improving the gas separation performance of processes involving CO<sub>2</sub>, N<sub>2</sub>, and CH<sub>4</sub>.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":null,"pages":null},"PeriodicalIF":8.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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