Small Methods最新文献_第7页

A Dual Hydrogen-Bonding Molecular Bridge Strategy Enables Efficient and Stable Inverted Organic Solar Cells. 双氢键分子桥策略实现高效稳定的倒置有机太阳能电池。

IF 8.7 2区材料科学

Small Methods Pub Date : 2026-10-05 DOI: 10.1002/smtd.71088

Jiawu Yu, Xiaona Han, Yudong Chen, Jianqiu Wang, Meijin Lin, Qian Kang, Jianhui Hou, Qing Liao

{"title":"A Dual Hydrogen-Bonding Molecular Bridge Strategy Enables Efficient and Stable Inverted Organic Solar Cells.","authors":"Jiawu Yu, Xiaona Han, Yudong Chen, Jianqiu Wang, Meijin Lin, Qian Kang, Jianhui Hou, Qing Liao","doi":"10.1002/smtd.71088","DOIUrl":"https://doi.org/10.1002/smtd.71088","url":null,"abstract":"Simultaneously achieving high power conversion efficiency (PCE) and robust operational stability in inverted organic solar cells (OSCs) requires precise interfacial engineering to overcome the energy-level misalignment and intrinsic photocatalytic activity of ZnO electron transport layers. Herein, we report a multifunctional molecular bridge strategy utilizing a rationally designed naphthalene diimide derivative, NDI-Me, featuring synergistic methyl and hydroxyl functionalization. Distinct from its analogues (NDI-Ph and NDI-OH), NDI-Me establishes a unique dual hydrogen-bonding network: phenolic hydroxyl groups firmly anchor onto ZnO to passivate surface oxygen vacancies, while simultaneously interacting with fluorine atoms in the photoactive layer to facilitate charge extraction. Coupled with the electron-donating methyl groups, this synergistic interaction effectively reduces the ZnO work function to 4.04 eV and accelerates active layer crystallization kinetics. Consequently, PBDB-TF:BTP-eC9-based OSCs incorporating ZnO/NDI-Me deliver a champion PCE of 18.28%. Crucially, the NDI-Me interface effectively suppresses UV-induced photocatalytic degradation, enabling encapsulated devices to retain 88.7% of their initial efficiency after 1800 h of continuous illumination. This work highlights the potential of hydrogen-bond-mediated molecular bridges in constructing efficient and stable organic photovoltaics.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e71088"},"PeriodicalIF":8.7,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149101912","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

Broad-Spectrum Recombinant Antibody Profiled by Hapten Prediction and Its Application in Immunoassay for Anabolic-Androgenic Steroids. 半抗原预测广谱重组抗体及其在合成代谢雄激素免疫分析中的应用。

IF 8.7 2区材料科学

Small Methods Pub Date : 2026-10-01 Epub Date: 2026-09-04 DOI: 10.1002/smtd.71022

Jialin Hu, Xinxin Xu, Maozhong Sun, Wei Gao, Hua Kuang, Chuanlai Xu, Lingling Guo

{"title":"Broad-Spectrum Recombinant Antibody Profiled by Hapten Prediction and Its Application in Immunoassay for Anabolic-Androgenic Steroids.","authors":"Jialin Hu, Xinxin Xu, Maozhong Sun, Wei Gao, Hua Kuang, Chuanlai Xu, Lingling Guo","doi":"10.1002/smtd.71022","DOIUrl":"10.1002/smtd.71022","url":null,"abstract":"Illegal use of anabolic-androgenic steroids (AASs) to feed livestock can lead to food residues and endanger public health. Thus, the development of rapid, sensitive detection methods for AASs is urgently needed for AASs to safeguard food safety. In this study, four novel haptens were designed for six AASs (androstenedione, 1,4-androstadienedione, boldenone, methandienone, testosterone, and methyltestosterone). By integrating computer simulation with animal immunization, we identified an optimal hapten combination and generated a hybridoma cell line capable of broadly recognizing all six AASs. Based on cell sequencing, a recombinant antibody (rAb-4E2) was prepared, with half-maximal inhibitory concentrations of 3.37-22.24 ng/mL for the six AASs. Molecular docking revealed TRP106 and VAL99 as key residues for broad-spectrum recognition. A lateral flow immunochromatographic assay strip using rAb-4E2 was developed for AASs detection in milk, beef, and fish, achieving visual detection limits of 2-10 ng/mL, 5-20 µg/kg, and 10-100 µg/kg, respectively. Validation with LC-MS/MS confirmed its reliability for real samples, offering an effective approach for rapid qualitative hormone screening.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e71022"},"PeriodicalIF":8.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148890586","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

An Antibacterial and Toughening Strategy Based on Carbonaceous Nano-Lamellae Applying for Food Preservation. 应用于食品保鲜的碳纳米片层抗菌增韧策略研究。

IF 8.7 2区材料科学

Small Methods Pub Date : 2026-10-01 Epub Date: 2026-09-11 DOI: 10.1002/smtd.71015

Zhengyong Yang, Weijia Yang, Juntao Zhang, Gege Mu, Feng Kuang, Hui Huang, Lei He, Bertrand Charrier, Guanben Du, Xinyi Chen, Hongda Guo, Xiaojian Zhou, Jianyong Wan

{"title":"An Antibacterial and Toughening Strategy Based on Carbonaceous Nano-Lamellae Applying for Food Preservation.","authors":"Zhengyong Yang, Weijia Yang, Juntao Zhang, Gege Mu, Feng Kuang, Hui Huang, Lei He, Bertrand Charrier, Guanben Du, Xinyi Chen, Hongda Guo, Xiaojian Zhou, Jianyong Wan","doi":"10.1002/smtd.71015","DOIUrl":"10.1002/smtd.71015","url":null,"abstract":"Integrating walnut green husk-derived carbonaceous nano-lamellae (WCNL) into casein films (CF) addresses the challenge of combining mechanical strength, barrier performance, and antibacterial activity in sustainable food packaging. The hydrothermally synthesized WCNL features defect-rich hierarchical networks that induces strong interfacial hydrogen bonding, creating a nano-confined network, which dramatically improves mechanical strength (563% increase in tensile strength) and reduces water vapor permeability by 22.77% of CF-WCNL, while offering excellent UV shielding and antioxidant activity. Standardized colony-counting assays demonstrated antibacterial efficiencies approaching 100% against both E. coli and S. aureus under the tested conditions. Time-kill kinetic analysis and live/dead fluorescence staining further reveal a pronounced time-dependent loss of bacterial viability, supporting a bactericidal rather than merely bacteriostatic effect. It is posited that the antibacterial behavior may be comprised of multiple concurrent processes, including edge-mediated membrane disruption, physical immobilization by the interconnected WCNL architecture, and ROS-induced oxidative stress. This hypothesis is supported by bacterial morphological observations and ROS analyses. These findings demonstrate the potential of biomass-derived carbonaceous nano-lamellae for developing mechanically robust and multifunctional bio-based food-packaging films.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e71015"},"PeriodicalIF":8.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148954542","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

Durable Superelliptical Topological Superhydrophobic Surfaces With Tolerance to Extreme Conditions for High-Performance Anti-Icing. 耐用的超椭圆拓扑超疏水表面，具有高性能防冰的极端条件的耐受性。

IF 8.7 2区材料科学

Small Methods Pub Date : 2026-10-01 DOI: 10.1002/smtd.71087

Zhijie Zhang, Qiang Li, Zhihong Zhao, Peng Kang, Lei Zheng, Yunlong Li, Haichuan Jin, Yuzhen Ning, Cunming Yu, Zhixiang Zeng, Kesong Liu

{"title":"Durable Superelliptical Topological Superhydrophobic Surfaces With Tolerance to Extreme Conditions for High-Performance Anti-Icing.","authors":"Zhijie Zhang, Qiang Li, Zhihong Zhao, Peng Kang, Lei Zheng, Yunlong Li, Haichuan Jin, Yuzhen Ning, Cunming Yu, Zhixiang Zeng, Kesong Liu","doi":"10.1002/smtd.71087","DOIUrl":"https://doi.org/10.1002/smtd.71087","url":null,"abstract":"Superhydrophobic surfaces (SHSs) show great promise for anti-icing by repelling supercooled water, delaying ice nucleation, and reducing ice adhesion, yet their practical applications are limited by poor durability under extreme conditions. Here, we present a multiscale stiff-soft integrated strategy that combines superelliptical topological (SET) microstructures with an intrinsically superhydrophobic nanocomposites to create superelliptical topological SHSs (SET-SHSs) with exceptional robustness and stable water repellency. SET-SHSs are capable of withstanding severe extreme conditions, including prolonged mechanical abrasion (12.25 kPa, 16 m), UV aging (>300 h), cryogenic (-196°C, >300 h) and high-temperature (350°C, >20 h), and violent rainstorms (Beaufort scale 11). Moreover, SET-SHSs exhibit outstanding anti-icing performance at -20°C, with a superior icing delay ratio of 24.7 compared to other SHSs. Under quasi-steady cooling (-0.90°C min-1), the static icing delay time was as high as 881 s, owing to a low solid-liquid contact fraction (∼10%) and a reduced ice nucleation temperature (-13.9°C). Moreover, effective ice protection was maintained in an ice wind tunnel (10 m s-1, -10°C) under a low applied heat flux density of 0.7 W cm-2. This strategy provides a general approach for designing robust and durable SHSs for applications in extreme environments.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e71087"},"PeriodicalIF":8.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149101451","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

Efficient Separation of Exosomes by Aptamer-Functionalized Polyacrylamide-Polyacrylic Acid Hydrogel. 适体功能化聚丙烯酰胺-聚丙烯酸水凝胶高效分离外泌体。

IF 8.7 2区材料科学

Small Methods Pub Date : 2026-10-01 DOI: 10.1002/smtd.71066

Wei Tan, Yan Ren, Xuemei Jia, Yanfei Guo, Chi Yao, Dayong Yang

{"title":"Efficient Separation of Exosomes by Aptamer-Functionalized Polyacrylamide-Polyacrylic Acid Hydrogel.","authors":"Wei Tan, Yan Ren, Xuemei Jia, Yanfei Guo, Chi Yao, Dayong Yang","doi":"10.1002/smtd.71066","DOIUrl":"https://doi.org/10.1002/smtd.71066","url":null,"abstract":"High-efficiency and specific isolation of exosomes from diverse biological fluids remains a major challenge for clinical diagnostics. Herein, we developed an aptamer-functionalized dual-network hydrogel platform for the specific enrichment and non-destructive release of exosomes. This study proposes an aptamer-functionalized dual-network hydrogel technology aimed at achieving the specific separation and non-destructive release of exosomes from complex biological samples. Using a sacrificial nickel foam template, polyacrylamide and polyacrylic acid were sequentially polymerized to construct a stable, interconnected macroporous hydrogel framework, which minimized flow resistance for rapid sample permeation. To build the affinity interface, circular DNA templates were chemically crosslinked into the accessible carboxyl groups of the polyacrylic acid segments, followed by in situ rolling circle amplification (RCA) to generate long DNA concatamers rich in repetitive CD63 aptamer sequences for efficient target capture. Meanwhile, polyacrylic acid is expected to reduce the non-specific adsorption of the composite hydrogel toward contaminating proteins, thereby improving the purity of the isolated exosomes. Finally, introducing complementary DNA displacement strands enables efficient, mild vesicle release via competitive hybridization, fully preserving structural integrity and cellular uptake ability. This bio-functionalized hydrogel system provides a gentle, efficient, and reliable methodology for high-purity exosome isolation, offering a promising tool for advanced biomedical applications.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e71066"},"PeriodicalIF":8.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149101497","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

Albumin Nanoparticle-Mediated Codelivery of Regorafenib and Paclitaxel Boosts Chemoimmunotherapy of Peritoneal Metastases. 白蛋白纳米颗粒介导的瑞非尼和紫杉醇共递送促进腹膜转移的化学免疫治疗。

IF 8.7 2区材料科学

Small Methods Pub Date : 2026-10-01 Epub Date: 2026-09-06 DOI: 10.1002/smtd.71021

Meng-Ting Lin, Yuan-Na Pan, Jing-Yi Liu, Zhen-Hao Zhuang, Si-Yao Han, Huan-Huan Jia, Jing-Yang Zhang, Jin-Zhi Du

{"title":"Albumin Nanoparticle-Mediated Codelivery of Regorafenib and Paclitaxel Boosts Chemoimmunotherapy of Peritoneal Metastases.","authors":"Meng-Ting Lin, Yuan-Na Pan, Jing-Yi Liu, Zhen-Hao Zhuang, Si-Yao Han, Huan-Huan Jia, Jing-Yang Zhang, Jin-Zhi Du","doi":"10.1002/smtd.71021","DOIUrl":"10.1002/smtd.71021","url":null,"abstract":"Despite its well-established clinical efficacy in multiple solid tumors, nab-paclitaxel confers limited therapeutic benefit in metastatic colorectal cancer (mCRC), primarily attributed to intrinsic chemoresistance and macrophage-mediated immunosuppression. Here, we find that regorafenib (REG) and paclitaxel (PTX) exhibit robust synergistic cytotoxicity against tumor cells, while also potentiating repolarization of macrophages from pro‑tumor M2 to antitumor M1 phenotype. To leverage this synergy and improve the therapeutic efficacy of albumin-bound PTX in mCRC, we construct an albumin nanoparticle co-loaded with REG and PTX (Alb-RP). Alb-RP facilitates macrophage phenotypic transition to the M1 state and upregulates proinflammatory cytokine expression, exhibiting potent tumoricidal activity in macrophage-tumor cell co-culture systems. In the MC38 colorectal peritoneal metastasis (CPM) model, Alb-RP markedly suppresses tumor progression and prolongs survival, achieving complete tumor regression in 44% of treated mice. Meanwhile, Alb-RP effectively reshapes the immune microenvironment in both peritoneal fluid and tumor tissues, characterized by decreased M2 macrophages, expanded M1 macrophages, enhanced dendritic cell activation, and increased infiltration of cytotoxic CD8+ T cells. Collectively, this study presents a translatable albumin-based co-delivery strategy that integrates direct chemotherapeutic cytotoxicity and macrophage repolarization to overcome the limited efficacy of albumin-bound PTX against mCRC.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e71021"},"PeriodicalIF":8.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148899951","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

A Few-Layer Quasi-Graphite Anode With Rigid-Flexible Synergy for High-Performance Potassium-Ion Batteries. 高性能钾离子电池用刚柔协同的准石墨阳极。

IF 8.7 2区材料科学

Small Methods Pub Date : 2026-10-01 Epub Date: 2026-09-08 DOI: 10.1002/smtd.71032

Zhifei Mao, Jun Jin, Rui Wang, Yansheng Gong, Ruigang Wang, Huanwen Wang

{"title":"A Few-Layer Quasi-Graphite Anode With Rigid-Flexible Synergy for High-Performance Potassium-Ion Batteries.","authors":"Zhifei Mao, Jun Jin, Rui Wang, Yansheng Gong, Ruigang Wang, Huanwen Wang","doi":"10.1002/smtd.71032","DOIUrl":"10.1002/smtd.71032","url":null,"abstract":"Potassium-ion batteries (KIBs) have emerged as promising candidates for grid-scale energy storage due to abundant K resources and reversible K+ de-/intercalation in graphite (KC8, 279 mAh g-1). However, practical application is hindered by severe volume expansion (≈60% for K+ vs. ≈10% for Li+), which induces stress accumulation, structural degradation, and capacity fading. Here, we develop a few-layer quasi-graphite (QGr) via structural reconstruction of graphite to regulate its mechanical stability and kinetics. The resulting QGr architecture integrates ordered domains with mechanically compliant graphene interfaces, creating a rigid-flexible synergy that alleviates intercalation-induced stress and lowers the kinetic barrier for K+ intercalation. As a result, the QGr anode delivers a reversible capacity of 279.2 mAh g-1 at 0.1 A g-1 and maintains stable cycling over 1200 cycles. Notably, QGr exhibits a pronounced low-voltage plateau of 246.1 mAh g-1 below 0.5 V. Combined in situ Raman spectroscopy and kinetic analysis demonstrates that K+-storage in QGr is dominated by an intercalation mechanism. This work demonstrates that rational structural engineering of graphite can simultaneously regulate structural stability and ion transport kinetics, providing a promising strategy for designing high-energy KIBs.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e71032"},"PeriodicalIF":8.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904661","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

Facile Synthesis of Pt-O-Ni Interfacial Sites on MOF-Derived Carbon Nanomaterials for Efficient Alkaline Hydrogen Evolution. mof衍生碳纳米材料上Pt-O-Ni界面位的快速合成及高效碱性析氢。

IF 8.7 2区材料科学

Small Methods Pub Date : 2026-10-01 Epub Date: 2026-09-10 DOI: 10.1002/smtd.71035

Hui Liu, Rong Lin, Yuting Fu, Nan Li, Haoran Wang, Shaoda Huang, Lei Zhang, Qipeng Li, Jinjie Qian

{"title":"Facile Synthesis of Pt-O-Ni Interfacial Sites on MOF-Derived Carbon Nanomaterials for Efficient Alkaline Hydrogen Evolution.","authors":"Hui Liu, Rong Lin, Yuting Fu, Nan Li, Haoran Wang, Shaoda Huang, Lei Zhang, Qipeng Li, Jinjie Qian","doi":"10.1002/smtd.71035","DOIUrl":"10.1002/smtd.71035","url":null,"abstract":"Developing efficient and durable electrocatalysts for the alkaline hydrogen evolution reaction (HER) is critical for sustainable hydrogen production. In this work, one type of nitrogen-doped carbon nanosheet derived from a nickel-based metal-organic framework (MOF) of Ni-BTC-bpy has been prepared, which enables atomic-scale anchoring of platinum clusters. Subsequently, low-temperature oxidation is carried out to create well-defined Pt-O-Ni interfacial sites for efficient alkaline HER. This optimized catalyst of NBP-NC-Pt-O achieves a low overpotential of 28 mV at a current density of 10 mA cm-2 in 1.0 M KOH, and demonstrates accelerated reaction kinetics compared to the commercial Pt/C. Meanwhile, it also exhibits satisfactory long-term electrocatalytic stability, maintaining 94.3% of its initial activity even after 100-h electrolysis. Furthermore, theoretical calculations indicate that the designed Pt-O-Ni interface connected by oxygen bridges not only reduces the energy barrier for water dissociation and subsequent hydrogen desorption, but also precisely regulates the electronic structure of the active sites to realize an almost optimal hydrogen adsorption free energy. Finally, this strategy can be widely applied to a series of Ni-based coordination polymers (e.g., Ni-ABDC, NiOF-1, and Ni-BTC) and shows excellent alkaline HER performance. This study establishes a general and scalable strategy for designing and synthesizing active, low-platinum catalysts by leveraging synergistic metal-support interactions in MOF-derived architectures, with broad implications for sustainable energy conversion technologies.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e71035"},"PeriodicalIF":8.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148917606","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

Enhancing Chiroptical Selectivity and Device Stability of Chiral Perovskite Photodetectors Via Interfacial AlF₃ Passivation. 通过界面AlF3钝化提高手性钙钛矿光电探测器的热选择性和器件稳定性。

IF 8.7 2区材料科学

Small Methods Pub Date : 2026-10-01 Epub Date: 2026-09-07 DOI: 10.1002/smtd.71019

Hyejin Lim, Su Hye Jeong, Chae Bin Lee, Yousang Won, Seungwon Lee, Inho Song, Wooseok Song, Ki-Seok An, Sungwoong Park, Seungju Lee, Soonmin Yim, Yoon Ho Lee, Saewon Kang

{"title":"Enhancing Chiroptical Selectivity and Device Stability of Chiral Perovskite Photodetectors Via Interfacial AlF3 Passivation.","authors":"Hyejin Lim, Su Hye Jeong, Chae Bin Lee, Yousang Won, Seungwon Lee, Inho Song, Wooseok Song, Ki-Seok An, Sungwoong Park, Seungju Lee, Soonmin Yim, Yoon Ho Lee, Saewon Kang","doi":"10.1002/smtd.71019","DOIUrl":"10.1002/smtd.71019","url":null,"abstract":"Chiral halide perovskites are promising materials for circularly polarized light (CPL) optoelectronics owing to their strong light absorption, long carrier diffusion lengths, and intrinsic chiroptical activity. However, most reported CPL perovskite devices still suffer from limited chiroptical selectivity and poor operational stability, hindering practical applications. Here, we report a facile interfacial passivation strategy using an atomic layer deposition (ALD)-grown AlF3 film for high-performance and stable CPL photodetectors (PDs). The dense AlF3 underlayer modifies the local interfacial environment of the perovskite, promotes grain growth, and reduces defect sites in the chiral perovskite films. Consequently, the AlF3-based films exhibit enhanced apparent chiroptical properties, with circular dichroism (CD) and circularly polarized photoluminescence (CPL-PL) g-factors increasing by approximately 3.8-fold and 2-fold, respectively, compared with pristine films. CPL PDs fabricated on the AlF3 underlayer achieve a photoresponsivity of 54 mA W-1, a specific detectivity of 1.68 × 1011 Jones, and a photocurrent g-factor of 0.48, representing an 84% enhancement over pristine devices. Interfacial AlF3 passivation also significantly improves device durability, providing a T70 operational lifetime more than 9.3 times longer under ambient conditions. This work demonstrates an effective interface-engineering strategy for simultaneously enhancing chiroptical selectivity, device performance, and operational stability in CPL perovskite optoelectronics.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e71019"},"PeriodicalIF":8.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13646045/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148904708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oleic Acid-Mediated Double Emulsification Enables Enhanced Aqueous Stability and Localized Photothermal Heating of Liquid Metal Droplets. 油酸介导的双乳化增强了液态金属液滴的水稳定性和局部光热加热。

IF 8.7 2区材料科学

Small Methods Pub Date : 2026-10-01 Epub Date: 2026-09-09 DOI: 10.1002/smtd.71023

Eunju Na, Youngwon Kim, Jihye Kim, Sang Kug Chung, Yongmin Cho, Bongseop Kwak, Joohyung Lee

{"title":"Oleic Acid-Mediated Double Emulsification Enables Enhanced Aqueous Stability and Localized Photothermal Heating of Liquid Metal Droplets.","authors":"Eunju Na, Youngwon Kim, Jihye Kim, Sang Kug Chung, Yongmin Cho, Bongseop Kwak, Joohyung Lee","doi":"10.1002/smtd.71023","DOIUrl":"10.1002/smtd.71023","url":null,"abstract":"Gallium-based liquid metals (LMs) have emerged as promising photothermal agents owing to their broadband optical absorption, high photothermal conversion capability, and intrinsic fluidity. However, their practical implementation in aqueous and biological environments remains severely limited by water-induced oxidation and hydrolysis, which progressively deteriorate their structural and photothermal stability. Here, we present a facile and potentially scalable double-emulsion strategy that physically isolates LM nanodroplets from water without requiring complex surface modification. By dispersing eutectic gallium-indium (EGaIn) nanodroplets within an oleic acid (OA) intermediate phase and subsequently emulsifying the system in water, a yolk-shell-type LM-in-OA-in-water (LM/OA/W) architecture is spontaneously formed through wettability-driven confinement. The OA phase serves as both a barrier against water transport and a thermally insulating microenvironment. Consequently, the double-emulsified LM exhibits improved aqueous stability and amplified photothermal performance compared with conventional LM/water dispersions, while retaining its morphology and functionality during prolonged aqueous storage and repeated near-infrared irradiation. Furthermore, the double-emulsion platform demonstrates low acute toxicity, effective photothermal suppression of three-dimensional tumor spheroids, and facile incorporation of additional functional components. This work establishes wettability-driven double emulsification as a simple yet versatile strategy for stabilizing and multifunctionalizing LM-based photothermal systems.","PeriodicalId":229,"journal":{"name":"Small Methods","volume":" ","pages":"e71023"},"PeriodicalIF":8.7,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13646033/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148917655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0