IF 13.3 2区材料科学

Small Pub Date : 2025-06-25 DOI: 10.1002/smll.202504849

Fei Xing,Qiang Fu,Shuo Wang,Lin Liu,Tao Liu,Xianfeng Li

{"title":"Ag/Sn Dual-Atoms with Synergistic Electrocatalysis for High-Power Density Vanadium Flow Batteries.","authors":"Fei Xing,Qiang Fu,Shuo Wang,Lin Liu,Tao Liu,Xianfeng Li","doi":"10.1002/smll.202504849","DOIUrl":"https://doi.org/10.1002/smll.202504849","url":null,"abstract":"Electrocatalyst with high activity is crucial to improve the power density of a vanadium flow battery (VFB), which is one of the most promising technologies in long duration large-scale energy storage. However, the accelerated redox reaction of vanadium ions normally accompanies hydrogen evolution as well. Herein, the Ag/Sn dual atoms electrocatalysts (Ag/Sn-DAs) are reported, exhibiting both high electrocatalytic activity and hydrogen evolution overpotential. Electrochemical in situ characterization indicates that the Ag/Sn-DAs can significantly promote the dehydration of [V(H2O)6]3+/[V(H2O)6]2+ and effectively inhibit hydrogen evolution reaction (HER). Theoretical calculations reveal that the optimized electronic structure and d-band center of Ag by the adjacent Sn change the *H adsorption sites and reduce the dehydration energy barrier of [V(H2O)6]3+/[V(H2O)6]2+. As a result, a VFB single cell assembled with Ag/Sn-DAs decorated graphite felt (GF) electrode delivers a high energy efficiency (EE) of 81.2% at a current density of 200 mA cm-2 and a peak power density of 925 mW cm-2, which is much higher than pristine GF (66.7% and 700 mW cm-2). This work presents a paradigm for synergistic catalysis in VFBs.","PeriodicalId":228,"journal":{"name":"Small","volume":"39 1","pages":"e2504849"},"PeriodicalIF":13.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478829","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

Ultra-Tough Anisotropic Bionic-Metafabric with Core-Shell Architecture for Sustainable Radiative Cooling. 用于可持续辐射冷却的核壳结构超韧各向异性仿生超织物。

IF 13.3 2区材料科学

Small Pub Date : 2025-06-25 DOI: 10.1002/smll.202505210

Hongtao Liu,Yining Wang,Wei Sun,Mingshuo Chen,Zhuan Chen,Yongping Hou,Yongmei Zheng,Bin Yu

{"title":"Ultra-Tough Anisotropic Bionic-Metafabric with Core-Shell Architecture for Sustainable Radiative Cooling.","authors":"Hongtao Liu,Yining Wang,Wei Sun,Mingshuo Chen,Zhuan Chen,Yongping Hou,Yongmei Zheng,Bin Yu","doi":"10.1002/smll.202505210","DOIUrl":"https://doi.org/10.1002/smll.202505210","url":null,"abstract":"The development of scalable high-quality radiative cooling materials can effectively address overheating issues without energy consumption. While some progress has been made, significant challenges remain in a narrow application range, low cooling power, and poor mechanical properties, which fail to meet requirements for sustainable use. Here, inspired by the special structure of white moth wings and spider silk, a flexible, strong, and tough high-efficiency radiation cooling metafabric (STRCM) is demonstrated with a unique fiber microstructure (including anisotropy and core-shell structure). The metafabric exhibits remarkable mechanical characteristics, boasting an effective tensile strength of 2.55 MPa, and exceptional toughness with an elongation at break of 726.94% and an impact energy absorption of 31 MJ m-3. More importantly, the metafabric demonstrates excellent radiative cooling with a temperature drop of ≈6.7 °C and an average cooling power of 79.0 W m-2 under a peak solar intensity of ≈978 W m-2 (tested in Beijing, China). During a long-term intermittent testing period, the cooling effect of the material shows no noticeable decline. The multi-level structural design of this work provides an unprecedented strategy for simultaneously enhancing mechanical properties and radiative cooling for long-term applications.","PeriodicalId":228,"journal":{"name":"Small","volume":"45 1","pages":"e2505210"},"PeriodicalIF":13.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478826","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

Novabeads: Stimuli-Responsive Signal-Amplifying Hydrogel Microparticles for Enzymeless Fluorescence-Based Detection of microRNA Biomarkers. Novabeads：用于无酶荧光检测microRNA生物标志物的刺激响应信号放大水凝胶微颗粒。

IF 13.3 2区材料科学

Small Pub Date : 2025-06-25 DOI: 10.1002/smll.202503990

Haoliang Lu,Fatimah Samman,Erol Hasan,Dana Alsulaiman

{"title":"Novabeads: Stimuli-Responsive Signal-Amplifying Hydrogel Microparticles for Enzymeless Fluorescence-Based Detection of microRNA Biomarkers.","authors":"Haoliang Lu,Fatimah Samman,Erol Hasan,Dana Alsulaiman","doi":"10.1002/smll.202503990","DOIUrl":"https://doi.org/10.1002/smll.202503990","url":null,"abstract":"Robust and ultrasensitive biosensing platforms for detecting clinically relevant biomarkers from liquid biopsies are vital for precision diagnostics. However, detecting low-abundance biomarkers such as microRNA typically necessitates complex and costly enzyme-based strategies like PCR or isothermal amplification. Here, a materials-driven approach is leveraged to rationally design stimuli-responsive, signal-amplifying, and graphically-encoded hydrogel microparticles, termed Novabeads, for enzyme-free and fluorescence-based biomarker detection. Novabeads incorporate pH-responsive acrylic acid moieties within a polyethylene glycol diacrylate-based network, enabling significant volume reduction (≈5 fold) upon pH modulation. This stimuli-responsive shrinking, coupled with high bioreceptor loading via thiol-ene click chemistry, enables rapid, enzyme-free optical signal amplification. As a proof-of-concept, fluorescently-labeled peptide nucleic acid (PNA) probes are designed for detecting the cancer biomarker miR-16, via a fluorogenic oligonucleotide-templated reaction, generating a Förster resonance energy transfer (FRET)-based signal. Novabeads exhibit >30 fold signal enhancement over equivalent conventional hydrogel microparticles, driven by three synergistic mechanisms: increased probe loading (≈2.6 fold), enhanced target capture (≈2.8 fold), and shrinkage-driven amplification (≈5 fold), ultimately leading to over 7 fold reduction in detection limit (28.8 pM; 2.9 fmol), and an expanded linear dynamic range. This rationally designed materials-driven biosensing strategy enables next-generation robust, versatile and enzyme-free biosensors for liquid biopsy diagnostics.","PeriodicalId":228,"journal":{"name":"Small","volume":"205 4 1","pages":"e2503990"},"PeriodicalIF":13.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478823","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

Flexible Field-Effect Transistor Sensors for Next-Generation Health Monitoring: Materials to Advanced Applications. 用于下一代健康监测的柔性场效应晶体管传感器：材料的高级应用。

IF 13.3 2区材料科学

Small Pub Date : 2025-06-25 DOI: 10.1002/smll.202504059

Yaxin Li,Huige Hu,Jian Shu,Guo-Jun Zhang

{"title":"Flexible Field-Effect Transistor Sensors for Next-Generation Health Monitoring: Materials to Advanced Applications.","authors":"Yaxin Li,Huige Hu,Jian Shu,Guo-Jun Zhang","doi":"10.1002/smll.202504059","DOIUrl":"https://doi.org/10.1002/smll.202504059","url":null,"abstract":"Flexible field-effect transistor (FET) sensors have emerged as a promising technology for human health monitoring, driven by breakthroughs in materials, device design, and fabrication processes. Their unique advantages, including multi-parametric detection, intrinsic signal amplification, low power consumption, and scalable production, position them at the forefront of wearable and implantable biosensing systems. This review outlines the structural design and operational principles of flexible FET sensors, systematically summarizing material innovations for critical components (substrates, dielectrics, semiconductor channels, and electrodes) and strategies to harmonize electrical performance with mechanical robustness. It analyzes evaluation methods and optimization strategies for enhancing mechanical stability under repetitive strain, a pivotal challenge for practical deployment. Additionally, it highlights cutting-edge applications in physiological signal monitoring and biological fluid analysis, demonstrating their potential for real-time diagnostics. Finally, the review discusses the current limitations of flexible FET sensors and provides an outlook on their future opportunities in personalized health management, intelligent diagnostic systems, and next-generation medical technologies.","PeriodicalId":228,"journal":{"name":"Small","volume":"101 1","pages":"e2504059"},"PeriodicalIF":13.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478825","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

Vapor-Assisted Mechanochemical Synthesis of Enzyme and Hydrogen-Bonded Organic Framework Biocomposites. 气相辅助机械化学合成酶和氢键有机骨架生物复合材料。

IF 13.3 2区材料科学

Small Pub Date : 2025-06-25 DOI: 10.1002/smll.202504744

Michael R Hafner,Natalija Pantalon Juraj,Kate Flint,Helmar Wiltsche,Heimo Wolinski,Heinz Amenitsch,Christian J Doonan,Krunoslav Užarević,Francesco Carraro

{"title":"Vapor-Assisted Mechanochemical Synthesis of Enzyme and Hydrogen-Bonded Organic Framework Biocomposites.","authors":"Michael R Hafner,Natalija Pantalon Juraj,Kate Flint,Helmar Wiltsche,Heimo Wolinski,Heinz Amenitsch,Christian J Doonan,Krunoslav Užarević,Francesco Carraro","doi":"10.1002/smll.202504744","DOIUrl":"https://doi.org/10.1002/smll.202504744","url":null,"abstract":"Hydrogen-bonded Organic Frameworks (HOFs) emerged as a matrix for preparing highly active and stable enzyme biocomposites. Conventional biocompatible synthetic procedures in solutions, however, suffer from issues related to competition with the solvent molecules and inhomogeneous loading of the enzyme. Here, it is demonstrated that a combination of mechanochemistry and accelerated aging can be used to synthesize Hydrogen-bonded Organic Framework (HOF) biocomposites with improved enzyme loading, activity, and protection. Advanced characterization techniques, including in situ Wide-Angle X-ray Scattering and Transmission Electron Microscopy, provide insights into these biocomposites' formation mechanisms and structural properties. A comparative analysis with biocomposites prepared via conventional solution synthesis reveals that vapor-induced growth enhances protein loading, ensures a more homogeneous enzyme distribution, and improves protective properties due to distinct growth mechanisms and kinetics. This simple and green synthetic approach offers a viable alternative to innovative HOF-based composite materials.","PeriodicalId":228,"journal":{"name":"Small","volume":"9 1","pages":"e2504744"},"PeriodicalIF":13.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478733","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

Metal and Covalent Organic Frameworks Meet OB-GYN: Advancing Applications in Women's Health and Pregnancy Care. 金属和共价有机框架满足OB-GYN：推进妇女健康和妊娠护理的应用。

IF 13.3 2区材料科学

Small Pub Date : 2025-06-25 DOI: 10.1002/smll.202504366

Yue Shi,Muling Zeng,Eudald Casals,Gregori Casals,Ning Liu

{"title":"Metal and Covalent Organic Frameworks Meet OB-GYN: Advancing Applications in Women's Health and Pregnancy Care.","authors":"Yue Shi,Muling Zeng,Eudald Casals,Gregori Casals,Ning Liu","doi":"10.1002/smll.202504366","DOIUrl":"https://doi.org/10.1002/smll.202504366","url":null,"abstract":"Metal-organic frameworks (MOFs) and Covalent-organic frameworks (COFs) are promising materials for biomedical applications due to their high surface area, tunable porosity, and functional versatility. Functionalized or nanoparticle-containing MOFs and COFs have been largely explored in preclinical studies for drug delivery, photodynamic and photothermal therapies, and ROS generation targeting cancer cells, among others. Additionally, they have shown potential as carriers of imaging agents for precise biomarker identification and tumor detection. However, the application of nanomaterials in medicine, including MOFs and COFs, still does not meet the expectations set more than two decades ago. This is particularly important in the maternal-fetal field, where substantial maternal health risks during pregnancy and childbirth affect many women. Only recently a range of preliminary studies exist, as these risks have traditionally been viewed as inherent to pregnancy, leaving significant gaps in innovative solutions for women's health that nanomaterials have the potential to bridge. This review addresses this critical need, offering a summary of current research in obstetrics and gynecology and maternal-fetal applications of MOFs and COFs, identifying gaps, and aiming to guide future research to expand nanomedicine's impact in these areas.","PeriodicalId":228,"journal":{"name":"Small","volume":"158 1","pages":"e2504366"},"PeriodicalIF":13.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478819","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 Electric Field-Enhanced Ultrahigh Energy Density Micro-Supercapacitors Printed by High Precision Maskless Photolithography. 高精度无掩膜光刻技术制备电场增强超高能量密度微型超级电容器。

IF 13.3 2区材料科学

Small Pub Date : 2025-06-25 DOI: 10.1002/smll.202506540

Tianshu Chu,Ze Zhou,Andrey Ivankin,Xiaohui Tang,Shaowei Ding,Bowei Zhang,Fu-Zhen Xuan

{"title":"An Electric Field-Enhanced Ultrahigh Energy Density Micro-Supercapacitors Printed by High Precision Maskless Photolithography.","authors":"Tianshu Chu,Ze Zhou,Andrey Ivankin,Xiaohui Tang,Shaowei Ding,Bowei Zhang,Fu-Zhen Xuan","doi":"10.1002/smll.202506540","DOIUrl":"https://doi.org/10.1002/smll.202506540","url":null,"abstract":"Micro-supercapacitors (MSCs) are crucial for powering micro-electromechanical systems (MEMS) and microelectronic devices due to their miniature size and high energy storage capacity. However, the achievement of printable high-energy-density MSCs with smaller size is still challenging. Herein, high-precision (2 µm) maskless lithography is utilized on Submicron (SU-8) photoresist successfully printing an ultrahigh energy density MSCs on silicon substrates with an effective electrode area of only 0.01 mm2. By incorporating the design of bent electrodes, the electric field strength between electrodes is greatly enhanced and leads to the improvements of device performance. The fabricated MSCs exhibit an unprecedently high area-specific capacitance of up to 2.13 mF cm-2 at a scan rate of 10 mV s-1, and excellent cyclic stability with the MSCs retaining 91.7% of their capacitive properties after 4000 cycles. Moreover, the MSCs achieve an ultrahigh energy density of 218 µWh cm-2, surpassing both traditional carbon-based MSCs and various hybrid MSCs. This work is expected to promote the broader application of MSCs in MEMS technology and microelectronic devices.","PeriodicalId":228,"journal":{"name":"Small","volume":"639 1","pages":"e2506540"},"PeriodicalIF":13.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478827","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

Constructing Cation-π Interactions within Thermally Activated Delayed Fluorescence Polysiloxanes for High-Efficiency Non-Doped and Flexible OLEDs. 在热激活延迟荧光聚硅氧烷中构建高效非掺杂柔性oled的阳离子-π相互作用。

IF 13.3 2区材料科学

Small Pub Date : 2025-06-25 DOI: 10.1002/smll.202503089

Haisong Zhao,Jinyang Zhao,Lei Hua,Zhennan Zhao,Yuchao Liu,Xinwen Zhang,Shouke Yan,Zhongjie Ren

{"title":"Constructing Cation-π Interactions within Thermally Activated Delayed Fluorescence Polysiloxanes for High-Efficiency Non-Doped and Flexible OLEDs.","authors":"Haisong Zhao,Jinyang Zhao,Lei Hua,Zhennan Zhao,Yuchao Liu,Xinwen Zhang,Shouke Yan,Zhongjie Ren","doi":"10.1002/smll.202503089","DOIUrl":"https://doi.org/10.1002/smll.202503089","url":null,"abstract":"High-efficiency thermally activated delayed fluorescence (TADF) polymer is one of the excellent choices for solution-processable electroluminescent devices due to their 100% theoretical exciton utilization. Herein, different from the previous TADF copolymers with carbon-carbon main-chains, TADF polymers with silicon-oxygen main-chains are innovatively prepared by easily combing polysiloxanes with TADF and host units. The flexible polysiloxane chains are rigidified by the cation-π interaction between the electropositive silicon atoms and TADF units, resulting in reduced vibrational relaxation and thus the narrow full width at half maximum and high photoluminescence quantum efficiency. Consequently, solution-processed non-doped OLEDs based on the prepared homopolysiloxane PSiBPA reach a maximum external quantum efficiency (EQE) of 27% and EQE of 20% at 500 cd m-2, which keeps at the forefront of non-doped polymer devices to date. Noteworthily, PSiBPA is the only high-efficiency homopolymer reported so far. Furthermore, PSiBPA presents outstanding mechanical properties.Thus, bendable OLEDs that demonstrate the maximum brightness and EQE barely starting attenuation with a bending radius of 2 mm are showcased. Moreover, the maximum brightness and EQE can still maintain 60% after 50 bends. The design strategy develops a novel approach to optimizing the properties of TADF polymers via cation-π interactions for constructing high-efficiency non-doped and flexible OLEDs.","PeriodicalId":228,"journal":{"name":"Small","volume":"10 1","pages":"e2503089"},"PeriodicalIF":13.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478832","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

Quantum-Confinement-Effect-Tuned Cascade AlQDs/β-Ga₂O₃ Heterojunctions for Ultrasensitive Solar-Blind Photodetection and Interference-Resistant Imaging. 用于超灵敏太阳盲光探测和抗干扰成像的量子约束效应调谐级联AlQDs/β-Ga₂O₃异质结。

IF 13.3 2区材料科学

Small Pub Date : 2025-06-25 DOI: 10.1002/smll.202504173

Hao Wu,Jinyi Pan,Chao Wu,Jie Wang,Chunyi Jiang,Chenyu Guo,Zhihao Yu,Zhenyang Wang,Sichao Du,Daoyou Guo,Jun Hu

{"title":"Quantum-Confinement-Effect-Tuned Cascade AlQDs/β-Ga₂O₃ Heterojunctions for Ultrasensitive Solar-Blind Photodetection and Interference-Resistant Imaging.","authors":"Hao Wu,Jinyi Pan,Chao Wu,Jie Wang,Chunyi Jiang,Chenyu Guo,Zhihao Yu,Zhenyang Wang,Sichao Du,Daoyou Guo,Jun Hu","doi":"10.1002/smll.202504173","DOIUrl":"https://doi.org/10.1002/smll.202504173","url":null,"abstract":"Solar-blind photodetection plays a crucial role in environmental monitoring, corona detection, and covert battlefield communication due to its unique high signal-to-noise ratios in the UVC band. Aluminum quantum dots (AlQDs) emerge as promising optical materials owing to their extended photoresponse in the ultraviolet region, along with their low cost and compatibility with optoelectronic devices. Herein, an AlQDs-based cascade solar-blind photodetector is presented with enhanced sensitivity, achieved through the quantum confinement effect. By employing a gradient double-layer AlQDs stack integrated with β-Ga₂O₃, the heterojunction demonstrates a significantly suppressed dark current, reduced from 3 nA to 2 pA, and a spectral noise density of 2.8 × 10 -11 A Hz⁻1 / 2 compared to the single-layer device. The optimized photodetector achieves a high UV-vis rejection ratio (R250/R400) of 2.5 × 103, a specific detectivity of ≈2.3 × 101 2 Jones, a relatively fast response time of 25 ms, and a responsivity of 35.1 mA W-1 under a 1 V bias. Furthermore, the device demonstrates robust interference-resistant imaging capabilities, enabling ultra-weak photodetection down to 23 nW cm-2. These results highlight the potential of AlQDs-based cascade devices for advanced solar-blind photodetection applications.","PeriodicalId":228,"journal":{"name":"Small","volume":"3 1","pages":"e2504173"},"PeriodicalIF":13.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478816","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

Naphthalene Diimide-Based Soft Materials Exhibiting High-Performance, Tunable Electrical Properties Through Side-Chain Engineering and Strong Binding Interactions with Human Hemoglobin. 通过侧链工程和与人血红蛋白的强结合相互作用，展示高性能、可调电性能的萘二亚胺基软材料。

IF 13.3 2区材料科学

Small Pub Date : 2025-06-25 DOI: 10.1002/smll.202504759

Sk Shamim Ahamed,Nargis Khatun,Mangal Deep Burman,Sagar Bag,Rajdeep Chakraborty,Bodhisattwa Panda,Raj Kumar Chinnadurai,Suman Kumar Ghosh,Debashree Manna,Sudipta Bhowmik,A K M Maidul Islam,Muklesur Rahman,Tapas Ghosh

{"title":"Naphthalene Diimide-Based Soft Materials Exhibiting High-Performance, Tunable Electrical Properties Through Side-Chain Engineering and Strong Binding Interactions with Human Hemoglobin.","authors":"Sk Shamim Ahamed,Nargis Khatun,Mangal Deep Burman,Sagar Bag,Rajdeep Chakraborty,Bodhisattwa Panda,Raj Kumar Chinnadurai,Suman Kumar Ghosh,Debashree Manna,Sudipta Bhowmik,A K M Maidul Islam,Muklesur Rahman,Tapas Ghosh","doi":"10.1002/smll.202504759","DOIUrl":"https://doi.org/10.1002/smll.202504759","url":null,"abstract":"Herein the design and synthesis of naphthalene diimide (NDI) derivatives aminated at the core with N1,N1-dimethylpropane-1,3-diamine, and 6-aminocoumarin are reported. Accommodating amine substituents on the electron-poor NDI scaffold yielded notable electronic characteristics of interest. These aminated NDIs exhibited two distinct absorption bands: one at a high-energy band (350-450 nm) associated with π-π* transitions and the other one (450-600 nm) due to intramolecular charge transfer absorption. The obtained bandgaps, ranging from 2.69 to 3.34 eV depending on side-chain modifications, demonstrated tunability, indicating varied semiconducting properties. Electrical studies revealed that all the side-chain-modified molecules exhibited high electrical conductivity and displayed characteristics of Schottky diodes. Notably, different Schottky parameters are found to vary systematically based on side-chain engineering, aligning well with their optical characteristics. Complementarily, AFM, and XRR investigations revealed unique crystalline morphologies associated with molecular architecture, highlighting the efficacy of molecular engineering in optimizing materials for electrical devices. Selective compounds underwent a series of biophysical analyses, including UV-vis absorption-, fluorescence-, and circular dichroism spectroscopy, all of which demonstrated a strong binding affinity, highlighting their potential interactions with human hemoglobin (Hb). In-depth computational studies like TDDFT and frontier molecular orbital analysis cemented the experimental observations.","PeriodicalId":228,"journal":{"name":"Small","volume":"20 1","pages":"e2504759"},"PeriodicalIF":13.3,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478738","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

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