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{"title":"SiC/SiO2/SnO2 Single Core–shell Nanowire Ultraviolet Photodetector with Radial Heterojunction: A Promising Strategy to Break the Responsivity-Speed Trade-Off","authors":"Baojing Xue, Pan Wang, Hongmei Liu, Zijian Tang, Zhengbo Yan, Ying Su, Bingshe Xu, Liping Ding, Guodong Wei, Yuanhao Wang, Ya Yang","doi":"10.1002/smll.202412618","DOIUrl":"https://doi.org/10.1002/smll.202412618","url":null,"abstract":"The utilization of a single silicon carbide (SiC) nanostructure-based photodetector (PD) is highly promising for developing MEMS devices, particularly in challenging environments such as high-temperature, high radiation, and corrosive environments. However, achieving a simultaneous improvement in responsivity and response speed is a challenge due to the inherent trade-off between these two parameters resulting from the limitations in light absorption capability and photoelectric transmission efficiency. To overcome this bottleneck, a novel single SiC/SiO₂/SnO₂ nanowire heterojunction ultraviolet (UV) PD is constructed based on the interface effect, resulting in a responsivity of 38188 A W⁻¹ and rise and decay times of 15 and 10 ms, respectively. The novel core–shell radial heterojunctions not only achieve high light absorption and shorten the distance for photo-generated carriers, ensuring a large optoelectronic gain and fast response time of the device, but also mitigate the individual differences among nanowires. The devices have potential applications in optoelectronic imaging, flame detection, and secure communication fields.","PeriodicalId":228,"journal":{"name":"Small","volume":"36 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867232","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}

{"title":"Humidity‐Resistant CeO2/In2O3 Nanocomposite‐Based Chemiresistor for Selective Detection of Formaldehyde","authors":"Ajeet Singh, Brij Mohan, Vijay Pratap, Wei Sun, Armando J. L. Pombeiro, Bal Chandra Yadav","doi":"10.1002/smll.202410023","DOIUrl":"https://doi.org/10.1002/smll.202410023","url":null,"abstract":"Formaldehyde is a frequent indoor pollutant that poses a risk to human and environmental health and is suspected to be a carcinogen. However, achieving high sensitivity and selectivity for real‐time applications remains challenging. In this study, a room‐temperature operated formaldehyde chemiresistor is developed by cerium dioxide/indium oxide (CeO<jats:sub>2</jats:sub>/In<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>) nanocomposite for exclusive detection. The nanocomposite is synthesized using hydrothermal, forming CeO<jats:sub>2</jats:sub> nanospheres grown on In<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> nanocubes. This unique structure enhances the sensing capabilities of CeO<jats:sub>2</jats:sub>/In<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub>, allowing it to detect formaldehyde in the 1–50 ppm range, and a 0.157 ppm detection limit is earned. The sensor exhibits an impressive response of 175.05 at 50 ppm at room temperature and shows responsiveness to various other substances, for instance, methanol, ethanol, aniline, benzene, toluene, acetone, and ammonia. Additionally, the CeO<jats:sub>2</jats:sub>/In<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> sensor demonstrated moderate to high selectivity, sensitivity, stability, speedy response/recovery times, and resilience to humidity. This work presents a promising strategy for the detection of formaldehyde.","PeriodicalId":228,"journal":{"name":"Small","volume":"129 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143866654","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}

{"title":"Revealing the Origin of Property Discrepancy in KNN‐Based Ceramics with Extreme K/Na Ratio for Sensing Application","authors":"Yi Ding, Zhi Tan, Yongqi Pan, Yu Wang, Yangda Dong, Wenbin Liu, Ting Zheng, Jiagang Wu","doi":"10.1002/smll.202502418","DOIUrl":"https://doi.org/10.1002/smll.202502418","url":null,"abstract":"Potassium–sodium niobate (KNN) ceramics are critical lead‐free piezoelectric materials, offering eco‐friendly alternatives with high performance for sustainable sensor applications. However, how to overcome the theoretical framework of conventional K/Na ratio limitation and achieve property enhancement in extreme composition remains to be fully understood. Herein, by combining density function theory calculation, Rayleigh analysis, and ferroelectric scaling behavior, the origin of property discrepancy in KNN‐based ceramics with extreme K/Na ratio is unveiled. Compared with Na‐rich sample, 2.3‐fold enhanced piezoelectricity can be achieved in K‐rich ceramics, superior to those with similar high K concentration. The deteriorated property in Na‐rich sample comes from the existence of in‐phase oxygen octahedron tilting (M<jats:sub>2</jats:sub><jats:sup>+</jats:sup>) mode, suppressing the polar () mode and leading to a higher energy barrier. Nevertheless, the absence of M<jats:sub>2</jats:sub><jats:sup>+</jats:sup> mode and the multiphase coexistence with a maze‐like domain, promote polarization rotation and domain switching, resulting in improved piezoelectric response in K‐rich ceramics. A compression‐type accelerometer based on KNN with extreme K/Na ratio is designed and the sensitivity of K‐rich ceramics is also much higher than that of Na‐rich ones, highest in reported KNN‐based piezoelectric accelerometers. The study provides a new paradigm to boost electrical properties and reveals the underlying mechanism of property discrepancy induced by extreme K/Na ratio, beneficial to the development of sensor applications.","PeriodicalId":228,"journal":{"name":"Small","volume":"35 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143866653","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}

{"title":"Unlocking the Potential of Disulfidptosis: Nanotechnology-Driven Strategies for Advanced Cancer Therapy","authors":"Wenyao Zhen, Tianzhi Zhao, Xiaoyuan Chen, Jingjing Zhang","doi":"10.1002/smll.202500880","DOIUrl":"https://doi.org/10.1002/smll.202500880","url":null,"abstract":"Tumor tissues exhibit elevated oxidative stress, with the cystine-glutamate transporter <i>x</i>CT solute carrier family 7 member 11 (<i>x</i>CT/SLC7A11) protecting cancer cells from oxidative damage by facilitating cystine uptake for glutathione synthesis. Disulfidptosis, a newly identified form of programmed cell death (PCD), occurs in cells with high <i>x</i>CT/SLC7A11 expression under glucose-deprived conditions. Distinct from other PCD pathways, disulfidptosis is characterized by aberrant disulfide bond formation and cellular dysfunction, ultimately resulting in cancer cell death. This novel mechanism offers remarkable therapeutic potential by targeting the inherent oxidative stress vulnerabilities of rapidly growing cancer cells. Advances in nanotechnology enable the development of nanomaterials capable of inducing reactive oxygen species (ROS) generation, disrupting disulfide bonds. In addition, they are capable to deliver therapeutic agents directly to tumors, thereby improving therapeutic precision and minimizing off-target effects. Moreover, combining disulfidptosis with ROS-induced immunogenic cell death can remodel the tumor microenvironment and enhance anti-tumor immunity. This review explores the mechanisms underlying disulfidptosis, its therapeutic potential in cancer treatment, and the synergistic role of nanotechnology in amplifying its effects. Selective induction of disulfidptosis using nanomaterials represents a promising strategy for achieving more effective, selective, and less toxic cancer therapies.","PeriodicalId":228,"journal":{"name":"Small","volume":"7 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867210","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}

{"title":"d-Orbital Single Electron Filling O─O π* Bonds on WO3S1 Sites for Highly Selective Generation of Hydroxyl Radicals","authors":"Hui Li, Tianhao Li, Ran Zhao, Hexiang Zhao, Haodong Ji, Fangyuan Chen, Zhurui Shen, Sihui Zhan","doi":"10.1002/smll.202412234","DOIUrl":"https://doi.org/10.1002/smll.202412234","url":null,"abstract":"Hydroxyl radical (•OH) stemming from dissolved oxygen (O₂) via photocatalysis is very attractive, but its poor selectivity and generation efficiency greatly limit its application. Herein, a kind of tungsten single site co-coordinated with O and S atoms (WO₃S₁) is established on ZnIn₂S₄ (W-ZIS). The strong interactions in WO₃S₁ shift the <i>d</i>-band center toward the Fermi level, enhancing the adsorption of O₂. These interactions improve the accumulation of photo-generated electrons on WO₃S₁, facilitating the dissociation of O─O bonds in crucial intermediates and promoting the selective conversion from O₂ into •OH. This brings a state-of-the-art selectivity (40.2%) and generation efficiency (1668.90 mmol. g⁻¹. L⁻¹. h⁻¹) of •OH production. Experimental results and theoretical simulations have elucidated that O₂ can be reduced by <i>d</i>-orbitals single electron (<span style=\"text-decoration:underline\">↑</span>, _, _, _, _, _) of WO₃S₁ transfer to 2<i>p</i>-orbital O─O pi anti-bonding (<i>π*</i>: <i>p_x</i> and <i>p_y</i>), initially activating O₂. Additionally, WO₃S₁ sites facilitate the cleavage of H₂O, optimizing proton adsorption through W─O orbital coupling in WO₃S₁ and promoting the transformation of oxygen-containing intermediates. More importantly, <i>d</i>-orbitals single electron can fill O─O <i>π*</i> bond in •OOH intermediate, weakening the covalency of the O─O bond, mitigating the formation of H₂O₂ and shortening the pathway for •OH generation.).","PeriodicalId":228,"journal":{"name":"Small","volume":"72 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867224","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}

{"title":"Photoluminescence of Te-Doped Double Perovskite Cs2ZrCl6 Nanocrystals Versus Bulk: Insights From Temperature-Dependent Spectroscopy","authors":"Yang Liu, Ye Wu, Anastasiia Sokolova, Xinmin Shi, Stephen V. Kershaw, Yusheng Wu, Lakshminarayana Polavarapu, Xiaoming Li, Andrey L. Rogach","doi":"10.1002/smll.202501342","DOIUrl":"https://doi.org/10.1002/smll.202501342","url":null,"abstract":"Although bulk crystals of lead-free vacancy-ordered double perovskites demonstrated a highly efficient emission, their nanocrystals (NCs) counterparts exhibit inferior optical performance. To understand the reasons behind this phenomenon, Cs₂ZrCl₆:Te⁴⁺ double perovskite NCs are synthesized, and their optical properties are compared with their bulk powders. Temperature-dependent spectroscopy revealed that the NCs sustain a thermal sensitization of the intermediate trap state, which is located between the self-trapped state of the host (Cs₂ZrCl₆) and the triplet states of the dopant (Te⁴⁺). This opens up a pathway for the non-radiative recombination, and thus decreases the energy transfer efficiency from host to dopant. Importantly, this pathway is suppressed in larger (40 nm) Cs₂ZrCl₆:Te⁴⁺ NCs, resulting in their photoluminescence quantum yield of 24%, as compared to 7% for the 22 nm NCs. Furthermore, the emission spectral range of these double perovskite NCs is shown to extended into near-infrared by incorporating rare-earth ions as additional dopants. The study has established a crucial relation between the optical properties and the size effect in lead-free vacancy-ordered double perovskites and thus lays a foundation for further improvement of their optical performance.","PeriodicalId":228,"journal":{"name":"Small","volume":"69 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867228","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}

{"title":"Copper-Coordination Engineered Glassy Hydrogels Featuring Ultrastiffness and Structural Programmability","authors":"Xiaoting Wang, Ning Tang, Yujia Jiang, Min-Hui Li, Jun Hu","doi":"10.1002/smll.202502949","DOIUrl":"https://doi.org/10.1002/smll.202502949","url":null,"abstract":"Glassy hydrogels, which maintain a distinctive glassy state at ambient temperature, are appealing for engineering applications. Nevertheless, the existing glassy hydrogels often suffer from inferior strength, inadequate stiffness, and environmental stability caused by weak physical cross-linking. Herein, we present an ultrastiff and ultrastrong glassy hydrogel by introducing robust coordination bonds into a network composed of polyacrylic acid (PAA) and polyvinyl alcohol (PVA), using a copper acetate-assisted strategy. The presence of acetate anions creates a relatively alkaline environment, which deprotonates the carboxyl groups of PAA. This deprotonation exposes carboxylate groups that readily coordinate with copper ions, establishing a densely cross-linked network in the glassy state. The resultant glassy hydrogel exhibits record-breaking Young's modulus (469.7 MPa), tensile strength (19.2 MPa), and exceptional environmental stability. Moreover, the reversible softening and vitrification induced by the breakage and reforming of coordination bonds endows glassy hydrogel with structural programmability, allowing for the construction of integrated auxetic hydrogel (IAH). The IAH demonstrates enhanced mechanical properties compared to the auxetic skeleton alone while maintaining a negative Poisson's ratio over a wide strain range of 0–29%. This study provides a promising engineering route for the development of advanced glassy hydrogels.","PeriodicalId":228,"journal":{"name":"Small","volume":"72 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867247","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}

{"title":"Visible Light-triggered Smart P(NIPAM-NVK)/PANI Antifouling Coating with Flexible Switching Between Photothermal-Photocatalytic Synergistic Antifouling Mechanisms and Fouling Release","authors":"Yanhua Liu, Saleem Ullah Saleem, Yuanyue Li, Geoffrey I.N. Waterhouse, Chenchen Liu, Zhiming Zhang, Liangmin Yu","doi":"10.1002/smll.202500595","DOIUrl":"https://doi.org/10.1002/smll.202500595","url":null,"abstract":"Biofouling on submerged equipment causes significant economic losses and threatens human safety, necessitating the urgent development of innovative and effective antifouling technologies. Herein, a visible light-triggered thermoresponsive organic semiconducting copolymer, poly(N-isopropylacrylamide-N-vinylcarbazole) (P(NIPAM-NVK)) with a low critical solution temperature (LCST), is successfully synthesized via radical copolymerization of N-isopropylacrylamide (NIPAM) and N-vinylcarbazole (NVK). Compositing P(NIPAM-NVK) with photoactive polyaniline (PANI) created P(NIPAM-NVK)/PANI coatings with excellent multi-synergistic antifouling properties under visible light. Under visible light (λ &gt; 400 nm) illumination, the P(NIPAM-NVK)/PANI composite coatings demonstrated strong light absorption and photothermal conversion properties, with elevated surface temperatures providing efficient photothermal antifouling. At the same time, P(NIPAM-NVK)/PANI photogenerated charge carriers, resulting in photocatalytic antifouling properties. By optimizing the composition of the composites, P(NIPAM-NVK)/PANI coatings with excellent antifouling performance are obtained (inactivation rates of 99.57% for <i>E. coli</i> and 99.95% for <i>S. aureus</i>). When the light is turned off, the surface morphology and wettability of the P(NIPAM-NVK)/PANI coatings gradually change, creating an unstable surface for bacterial adhesion (leading to fouling release efficiencies of 99%). The ability to easily switch between photoactive inactivation and dynamic biofouling release by simply applying light/dark conditions provides the basis for a simple solar-driven antifouling system.","PeriodicalId":228,"journal":{"name":"Small","volume":"48 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867245","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}

{"title":"A Hydrogen Sulfide-Activated NIR-II Fluorescence/NIR-I Photoacoustic Dual-Ratiometric Nanoprobe With Unique Recognition Reaction for Precise Visual Diagnosis of Hepatitis Disease","authors":"Lixian Huang, Fei Lv, Yidong Bin, Jingjin Zhao, Caiying Li, Shulin Zhao, Shengqiang Hu, Liangliang Zhang","doi":"10.1002/smll.202501269","DOIUrl":"https://doi.org/10.1002/smll.202501269","url":null,"abstract":"Hydrogen sulfide (H₂S) is a vital gaseous signaling molecule that plays a central role in various physiological and pathological processes. Given the complementary advantages of fluorescence (FL) and photoacoustic (PA) imaging, there is a growing demand for dual-ratiometric probes that enable precise in vivo monitoring of H₂S levels. In this study, the use of 2-mercapto-1,3,4-thiadiazole (MTD) as a novel recognition group of H₂S is presented for the first time, following conjugation with cyanine dyes to obtain a new PA probe Cy-MTD. To achieve dual-ratiometric imaging, Cy-MTD is incorporated into down-conversion nanoparticle (DCNP), resulting in the creation of a pioneering NIR-II FL/NIR-I PA dual-ratiometric nanoprobe DCNP@Cy-MTD. Cy-MTD undergoes the blueshift in absorption from 840 to 670 nm after reaction with H₂S, enabling NIR-I ratiometric PA imaging of H₂S by measuring the ratio of PA signal at 670 and 840 nm (PA₆₇₀/PA₈₄₀). In addition, due to the strong absorption of Cy-MTD ≈840 nm and the overlapping between the absorption spectrum of Cy-MTD and 808 nm excitation band of DCNP, the 808 nm-excited FL emission (F₁₅₅₀ _nm,808Ex) of DCNP in DCNP@Cy-MTD nanoprobe is quenched through the competitive absorption, while it is restored upon the interaction with H₂S because of the blueshift in absorption of Cy-MTD. Using the stable FL emission of DCNP under 980 nm excitation (F₁₅₅₀ _nm,980Ex) as the reference signal, NIR-II ratiometric FL imaging (F₁₅₅₀ _nm,808Ex/F₁₅₅₀ _nm,980Ex) of H₂S is achieved. The dual-ratiometric response features of the DCNP@Cy-MTD nanoprobe offer a significant advancement over traditional single-signal or single-modality imaging techniques. By providing enhanced accuracy and reliability, this probe allows for the diagnosis of hepatitis by monitoring the H₂S, surpassing the capabilities of conventional histopathological methods, which provides a new way for more effective diagnostic strategies for liver diseases.","PeriodicalId":228,"journal":{"name":"Small","volume":"7 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867221","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}

{"title":"Selective Design of Mesoporous Bi2Se3 Films with Orthorhombic and Rhombohedral Crystals","authors":"Minsu Han, Tomota Nagaura, Ho Ngoc Nam, Zihao Yang, Azhar Alowasheeir, Quan Manh Phung, Takeshi Yanai, Jeonghun Kim, Saad M. Alshehri, Tansir Ahamad, Yoshio Bando, Yusuke Yamauchi","doi":"10.1002/smll.202501534","DOIUrl":"https://doi.org/10.1002/smll.202501534","url":null,"abstract":"Materials with the same chemical composition can exhibit distinct properties depending on their crystal phases. Here, the synthesis of two types of mesoporous Bi₂Se₃ films at different reduction potentials is reported and their application in electrochemical glucose sensing. Mesoporous Bi₂Se₃ is synthesized by incorporating block copolymer micelle assemblies into the deposition solution and applying a reduction potential. To characterize the crystal phases accurately, Bi₂Se₃ films are heat-treated at 200 °C for 1 h in a nitrogen atmosphere. The results reveal that the Bi₂Se₃ films synthesized under different conditions exhibit clearly distinct phases: rhombohedral (<i>R</i>-Bi₂Se₃) and orthorhombic (<i>O</i>-Bi₂Se₃). The <i>R</i>-Bi₂Se₃-8 nm, featuring 8 nm pores and synthesized at a more negative reduction potential, outperforms its nonporous counterpart, achieving a glucose sensing sensitivity of 0.143 µA cm⁻² µM⁻¹ and a detection limit of 6.2 µM at pH 7.4 in 0.1 M phosphate-buffered saline solution. In contrast, the <i>O</i>-Bi₂Se₃, prepared at a relatively positive potential, exhibits no glucose-sensing activity. The inactivity of <i>O</i>-Bi₂Se₃ for glucose oxidation is likely due to the energetically unfavorable intermediates, as predicted by density functional theory calculations. These findings underscore the critical role of crystal phase control in porous nanomaterials and pave the way for developing innovative porous systems.","PeriodicalId":228,"journal":{"name":"Small","volume":"14 1","pages":""},"PeriodicalIF":13.3,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867219","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}