ACS Applied Nano Materials最新文献

{"title":"Nanoscale Materials in Biomedical Applications of Sensors: Insights from a Comprehensive Landscape Analysis","authors":"Kavita A. Iyer,&nbsp;Rumiana Tenchov,&nbsp;Krittika Ralhan,&nbsp;Robert E. Bird,&nbsp;Leilani M. Lotti Diaz,&nbsp;Kevin J. Hughes,&nbsp;Magesh Ganesan,&nbsp;Julian M. Ivanov and Qiongqiong Angela Zhou*,&nbsp;","doi":"10.1021/acsanm.4c0446310.1021/acsanm.4c04463","DOIUrl":"https://doi.org/10.1021/acsanm.4c04463https://doi.org/10.1021/acsanm.4c04463","url":null,"abstract":"<p >Since their inception in the early 1960s, the use of nanoscale materials has progressed in leaps and bounds, and their role in diverse fields ranging from human health to energy is undeniable. Nanosensors are devices having nanoscale dimensions designed to detect, record, and transmit signals to provide valuable data and information. In this review, we utilize the CAS Content Collection, a vast repository of scientific information extracted from journals and patent publications, to identify emerging materials and applications in this field. This involves understanding trends, such as the growth of certain topics over time, as well as establishing relationships between emerging topics. Our analysis indicates that among the various nanomorphologies explored in nanosensors, nanoparticles, nanotubes, and quantum dots tend to lead. In terms of the types of nanosensors, chemical and biological sensors account for nearly 80% of publications. In combination with bibliographic data, we utilized our access to the CAS Registry and identified a host of emerging materials across various substance classes (polymers, small molecules, and elements) associated with nanosensor publications. Finally, our analysis indicates that a major application of nanosensors appears to be biomedical in nature (cancer diagnosis/testing and drug discovery, for example). Our findings are highlighted in a CAS TrendScape map that provides an overview of research interest in various concepts in the field. We also provide a snapshot of commercial interest in the development of nanosensors and briefly discuss nanosensors currently under development. It is our hope that this review provides a comprehensive overview of the field and serves as a valuable guide to researchers/scientists.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 3","pages":"1305–1331 1305–1331"},"PeriodicalIF":5.3,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsanm.4c04463","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143088119","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}

{"title":"Polylactic Acid/Polybutylene Adipate Terephthalate-Carbon Nanotube Nanobiocomposites with a Segregated Toughening Morphology Yielding Large Ductility for Biocompatible Materials","authors":"Utsab Ayan,&nbsp;Madara Mohoppu,&nbsp;John Adams Sebastian,&nbsp;Bhoumik R. Shreyan,&nbsp;Veeresh B. Toragall,&nbsp;Mohammed Maniruzzaman,&nbsp;Ahmed Al-Ostaz,&nbsp;Thomas Werfel and Byron S. Villacorta*,&nbsp;","doi":"10.1021/acsanm.4c0635310.1021/acsanm.4c06353","DOIUrl":"https://doi.org/10.1021/acsanm.4c06353https://doi.org/10.1021/acsanm.4c06353","url":null,"abstract":"<p >Selective deposition and encapsulation of nanodispersed multiwalled carbon nanotubes (MWCNT) exclusively within polybutylene adipate terephthalate (PBAT) microdomains in a phase-separated microstructure of 80/20 polylactic acid (PLA)/PBAT polymer nanocomposites (PNCs) were achieved by a three-step processing strategy. The resulting PNC morphology displayed prickly chayote-squash-like domains embedded and distributed within the PLA matrix, which led to an ultratoughening effect in the PNCs at 1 wt % MWCNT, yielding ductility values of 6500 and 50% higher than the virgin PLA and the pristine 80/20 PLA/PBAT blend, respectively. The PBAT microdomains acted as the primary stress-absorbing sites. Moreover, a toughening nanomechanism by MWCNT was proposed to account for the tougher behavior, which delineated the presence of nanotubes with a critical aspect ratio, distribution, orientation, and dispersion, that deflects, pins, and bridges nanocracks, thereby acting as secondary stress-dissipating agents within the domains. The validity of this mechanism was corroborated by the observation of closed-ended and parallel nanocracks in the fractured PNCs’ cross sections. Furthermore, the intermolecular bonding between PBAT and MWCNT through CH–π interactions contributed to the preferential localization of MWCNTs exclusively within the PBAT domains, which constrained the transfer of MWCNT in the brittle PLA matrix during melt mixing, while the presence of interfacial cavitations eliminated the likelihood of interfacial bridging by MWCNT. The presence of shortened MWCNTs exclusively within the PBAT domains decreased the crystallinity of the PLA matrix, restricting the heterogeneous nucleating effect of the MWCNT in PLA as PBAT blocked their effective surface area. The hybrid PNCs developed in this study remained electrically insulative and displayed an ultratough, ultraductile, and cytocompatible behavior, which makes them potential candidates for biomedical and bioelectronic applications.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 3","pages":"1537–1556 1537–1556"},"PeriodicalIF":5.3,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143087604","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":"C60/Co Nanoparticle/Carbon Nanoflake Composites for Dual-Loss Microwave Absorption","authors":"Haocheng Zhai,&nbsp;Baoshan Wu*,&nbsp;Shoaib Muhammad,&nbsp;Qihui Sun,&nbsp;Hanrui Tian*,&nbsp;Yifan Liu,&nbsp;Panfeng Zhao*,&nbsp;Chunhong Mu,&nbsp;Nasir Mahmood and Xian Jian*,&nbsp;","doi":"10.1021/acsanm.4c0574410.1021/acsanm.4c05744","DOIUrl":"https://doi.org/10.1021/acsanm.4c05744https://doi.org/10.1021/acsanm.4c05744","url":null,"abstract":"<p >An ideal microwave absorption material involves multilevel precise regulation and construction at multiple scales, which remains a great challenge. For the first time, we develop a host–guest self-assembling strategy via the entrapment of fullerene C₆₀ molecule guest in a zeolitic imidazolate framework-67 (ZIF-67) host to design the hierarchical structure for a high-performance microwave absorber covering the molecular scale, nanoscale, and microscale synergistic effects. Typically, the two-dimensional orientation growth of microscale ZIF-67 precursors in solution is achieved by introducing C₆₀ molecules. After the accurate pyrolysis process, Co nanoparticles derived from C₆₀@ZIF-67 are embedded into ultrathin carbon flake (CF) substrates, favoring uniformity, size diminishment, and surface stability. These as-synthesized uniformly dispersed C₆₀/Co/CF composites possess advantages of dual dielectric and magnetic loss functions, exhibiting the great microwave absorption properties with a minimum reflection loss of −58.03 dB and the effective absorption bandwidth of 5.94 GHz. This proposed host–guest self-assembling strategy has great potential for the synthesis of other metal–organic framework materials in the field of microwave absorption.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 3","pages":"1416–1427 1416–1427"},"PeriodicalIF":5.3,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143087952","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":"The Role of Solvent in Carbon Quantum Dot Synthesis on the Performance of MoS2 Nanosheet/Carbon Quantum Dot Heterostructures as Electrocatalysts for the Hydrogen Evolution Reaction","authors":"Fani Rahayu Hidayah Rayanisaputri,&nbsp;Didik Aryanto,&nbsp;Lazar Bijelić,&nbsp;Arturo Susarrey-Arce,&nbsp;Francisco Ruiz-Zepeda,&nbsp;Ferry Anggoro Ardy Nugroho and Vivi Fauzia*,&nbsp;","doi":"10.1021/acsanm.4c0606710.1021/acsanm.4c06067","DOIUrl":"https://doi.org/10.1021/acsanm.4c06067https://doi.org/10.1021/acsanm.4c06067","url":null,"abstract":"<p >This study investigates the effect of different solvents used in the synthesis of carbon quantum dots (CQDs) on the electrocatalytic performance of MoS₂/CQD heterostructures for the hydrogen evolution reaction (HER). While previous research focused on CQDs synthesized with deionized water, little attention has been given to the influence of other solvents on CQD electrocatalytic behavior. To address this, we synthesized MoS₂ on 3D carbon cloths via a hydrothermal method and subsequently incorporated CQDs synthesized using deionized water, glycerol, and dimethylformamide (DMF). The choice of solvent significantly impacts their morphology, crystallinity, surface, and electrochemical properties. In particular, MoS₂ nanosheets became smaller with increased disordered structures and defect sites, particularly sulfur vacancies. Among the heterostructures, MoS₂/CQDs-Glycerol showed superior performance, with an onset overpotential of 130 mV and Tafel slope of 53 mV/dec at 10 mA/cm², outperforming MoS₂/CQDs-DI (149 mV, 68 mV/dec) and MoS₂/CQDs-DMF (185 mV, 106 mV/dec). The enhanced performance of MoS₂/CQDs-Glycerol is attributed to its larger active surface area (<i>C</i>_dl of 228.7 mF/cm²) and lower charge transfer resistance (<i>R</i>_<i>ct</i> of 2.25 Ω), which may be due to the formation of more Mo–S edges on the vertical plane, serving as active sites. This study demonstrates that glycerol is the most effective solvent in CQD synthesis for enhancing HER performance by improving the morphology, surface properties, and charge transfer.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 3","pages":"1479–1489 1479–1489"},"PeriodicalIF":5.3,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143088135","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":"Nanoporous Graphene Integrated onto Bimodal Waveguide Biosensors for Detection of C-Reactive Protein","authors":"Bárbara Lisboa,&nbsp;Maria Soler*,&nbsp;Rukmani Singh,&nbsp;Jesús Castro-Esteban,&nbsp;Diego Peña,&nbsp;Aitor Mugarza,&nbsp;Laura M. Lechuga and César Moreno*,&nbsp;","doi":"10.1021/acsanm.4c0671610.1021/acsanm.4c06716","DOIUrl":"https://doi.org/10.1021/acsanm.4c06716https://doi.org/10.1021/acsanm.4c06716","url":null,"abstract":"<p >Despite the outstanding progress in photonic sensor devices, a major limitation for its application as label-free biosensors for biomedical analysis lies in the surface biofunctionalization step, that is, the reliable immobilization of the biorecognition element onto the sensor surface. Here, we report the integration of bottom-up synthesized nanoporous graphene onto bimodal waveguide interferometric biosensors as an atomically precise biofunctionalization scaffold. This combination leverages the high sensitivity of bimodal waveguide interferometers and the large functional surface area of nanoporous graphene to create highly sensitive, selective, and robust biosensors for the direct immunoassay detection of C-reactive protein (CRP), an inflammatory biomarker widely used in the clinical diagnosis of infections and sepsis. The limit of detection was determined at 3 ng/mL, which is well below the clinical cutoff levels required for the diagnostic detection of CRP in patient samples. This innovative approach holds promise for transforming diagnostics, environmental monitoring, and various fields requiring precise biomolecular detection.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 3","pages":"1640–1648 1640–1648"},"PeriodicalIF":5.3,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acsanm.4c06716","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143091250","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}

{"title":"High-Reflectivity Force-Chromic Photonic Crystal Elastic Materials Based on Nanospheres within an Elastomer for Applications in Sensing and Textile Fields","authors":"Zhichuang Qi,&nbsp;Yang Pang,&nbsp;Liangliang Cui,&nbsp;Zhangmi Huang,&nbsp;Chunyan Hu and Baojiang Liu*,&nbsp;","doi":"10.1021/acsanm.4c0654510.1021/acsanm.4c06545","DOIUrl":"https://doi.org/10.1021/acsanm.4c06545https://doi.org/10.1021/acsanm.4c06545","url":null,"abstract":"<p >By mimicking the biological process in which chameleons change the lattice spacing of guanine nanocrystals to form and regulate their skin color, scientists have prepared force-chromic photonic crystal materials (FPMs) by encapsulating arrays of photonic crystal nanospheres in elastic matrices. However, the low refractive index difference (Δ<i>n</i>) between conventional nanospheres and elastic matrix combinations typically makes the photonic material transparent and with low color reflectance. Besides, the elastic matrix is mostly dominated by hydrogel materials, which gradually decrease or even lose the stability of the sensing material as the solvent evaporates. PS@SiO₂ core–shell nanospheres with a high refractive index while reducing the risk of microplasticity are ideal for preparing FPMs. In this work, we explored the preparation method of PS@SiO₂ nanospheres and prepared force-chromic photonic crystal elastomers (FPEs) by embedding them into di(ethylene glycol) ethyl ether acrylate (DEGEEA) and polyethylene glycol monophenyl ester acrylate (PEGPEA) matrices via the coassembly method. It was found that due to the large Δ<i>n</i> between PS@SiO₂ nanospheres and acrylate matrices (Δ<i>n</i> &gt; 0.05), the FPE possessed a high reflectivity (<i>R</i> &gt; 82%), and the color change under force stimulation is obvious. Meanwhile, the FPE had a good tensile strain and a high sensitivity (1.62 nm/%). Due to the absence of solvents in the elastic system, the FPE has excellent stability, and the structural color remains unchanged under 50 stretch/release cycling experiments. This FPE not only has a simple preparation method, fast response, high reflectivity, and good stability, but we have found through validation experiments that it has great potential in the fields of sensing, signal transmission, and smart textiles.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 3","pages":"1605–1616 1605–1616"},"PeriodicalIF":5.3,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143091582","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":"Phosphorus Doping in Co9S8/Ni3S2 Hollow Nanorods for Supercapacitors","authors":"Shuangxing Cui,&nbsp;Lei Wu,&nbsp;Xintong Lu,&nbsp;Guochang Li,&nbsp;Xunwen Xiao* and Lei Han*,&nbsp;","doi":"10.1021/acsanm.4c0661710.1021/acsanm.4c06617","DOIUrl":"https://doi.org/10.1021/acsanm.4c06617https://doi.org/10.1021/acsanm.4c06617","url":null,"abstract":"<p >Metal sulfides, characterized by high crystalline stability and narrowed band gap, are recognized as effective electrode materials for energy storage in alkaline environments. This study enhances the surface activity in Co₉S₈/Ni₃S₂ hollow nanorod arrays by incorporating phosphorus (P) doping. In situ Raman spectroscopy confirms that P doping facilitates rapid surface reconstruction in alkaline media, resulting in substantial amounts of oxyhydroxides that significantly enhance the energy density of supercapacitors. The optimized P–Co₉S₈/Ni₃S₂ (1 h) electrode demonstrates a 4.56-fold increase in performance over the original Co₉S₈/Ni₃S₂, achieving a capacitance of 20.5 F·cm^–2 at 3 mA·cm^–2 in 2 M KOH. The hybrid supercapacitor device assembled with activated carbon achieves an energy density of 1.73 mWh cm^–2 at a power density of 4.95 mW cm^–2, showcasing a high cycling life with 84.6% capacity retention after 10,000 cycles. This work effectively reconstructs the activity of oxyhydroxide species on Co₉S₈/Ni₃S₂ electrodes in alkaline environments through P doping engineering, providing valuable guidance for the design of in situ reconstructions of metal sulfide electrodes using P atom doping engineering.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 3","pages":"1617–1627 1617–1627"},"PeriodicalIF":5.3,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143090996","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":"Uncertainties in the Quantification of Photocatalytically Produced Ammonia: A Case Study of Overall Nitrogen Fixation over Defect-Rich Mo-Doped Sb2WO6 Nanobelts","authors":"Manisha Sharma,&nbsp;Seema Suthar,&nbsp;Madhurima Sarkar,&nbsp;Abhijit Patra* and Venkata Krishnan*,&nbsp;","doi":"10.1021/acsanm.4c0509410.1021/acsanm.4c05094","DOIUrl":"https://doi.org/10.1021/acsanm.4c05094https://doi.org/10.1021/acsanm.4c05094","url":null,"abstract":"<p >Photocatalytic nitrogen fixation is a potentially viable approach to meet the enormous demand for N-based chemicals such as ammonia and nitrates. However, light-driven nitrogen fixation is a complex reaction from both kinetic and thermodynamic perspectives. Also, there has not been much emphasis on the simultaneous production of ammonia and nitrate. In addition, there is much debate regarding the correctness of the quantification of photogenerated NH₃. In this work, we reported the overall nitrogen fixation over the surface of defect-rich Mo-doped Sb₂WO₆ nanobelts without the use of an electron or hole scavenger. One of the samples (SWMO0.1) with an optimum amount of Mo was found to possess the best catalytic activity for ammonia generation with a yield rate of 24 μmol g^–1 h^–1 as compared to the pristine Sb₂WO₆ sample (4 μmol g^–1 h^–1). Also, the solar to ammonia (STA) efficiency was found to be 0.035%. The photogenerated ammonia concentration was quantified using indophenol, Nessler’s reagent, and ion chromatography, and a detailed comparison was made to examine the reliability of these methods. The ammonia concentration measured using ion chromatography was much lower than that measured using the other two calorimetric methods (indophenol and Nessler’s reagent), indicating uncertainties in the accurate determination of ammonia concentration. Further, nitrate and nitrite species formed were also quantified. Thus, this work provided insights into the uncertainties in the quantification of photocatalytically produced ammonia using Mo-doped Sb₂WO₆ nanobelts as catalysts.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 3","pages":"1338–1351 1338–1351"},"PeriodicalIF":5.3,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143091056","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":"Thiol-Michael-Functionalized Polypyrrole Nanoparticles with Intrinsic Fluorescence and Electroactivity","authors":"Weize Yuan,&nbsp;Shao-Xiong Lennon Luo,&nbsp;Tiffany Q. Chen,&nbsp;Zhewen Guo and Timothy M. Swager*,&nbsp;","doi":"10.1021/acsanm.4c0576210.1021/acsanm.4c05762","DOIUrl":"https://doi.org/10.1021/acsanm.4c05762https://doi.org/10.1021/acsanm.4c05762","url":null,"abstract":"<p >Polypyrrole is functionalized by deprotonation of its oxidized state, followed by a thiol-Michael addition reaction. It is found that this process produced emissive compositions. This feature is found to be diagnostic of the functionalization and relative solvation by water, wherein enhanced interactions with the solvent gave higher emission intensities. The thiol-conjugation method is shown to be general and can be extended to a range of polar, nonpolar, and aromatic materials. Thiol-conjugated materials retain the electroactivity characteristic of polypyrrole. The dual fluorescence and electroactivity of these thiol-conjugated nanoparticles suggest their potential as a sensing platform.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 3","pages":"1386–1394 1386–1394"},"PeriodicalIF":5.3,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143091139","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":"Ultralow Power Artificial Synapses Based on CrPS4-Floating-Gate Transistor for the Emotional Simulation","authors":"Zhipeng Yu,&nbsp;Tianle Zeng,&nbsp;Zishuo Han,&nbsp;Kun Ye,&nbsp;Yuxuan Zeng,&nbsp;Chi Kong,&nbsp;Bin Fang,&nbsp;Xuan Zhang,&nbsp;Lin Geng*,&nbsp;Weiming Lv*,&nbsp;Zhongyuan Liu,&nbsp;Lifeng Bian and Zhongming Zeng*,&nbsp;","doi":"10.1021/acsanm.4c0619510.1021/acsanm.4c06195","DOIUrl":"https://doi.org/10.1021/acsanm.4c06195https://doi.org/10.1021/acsanm.4c06195","url":null,"abstract":"<p >With the rapid development of artificial intelligence and intelligent robot technology, integrating human emotions has become essential for improving interactions with machines. The amygdala, a key brain region for regulating emotions, plays an important role in advancing this technology by simulating internal emotional synaptic activities. However, it has been a significant challenge to perform simulation studies on synaptic activity within the amygdala during the process of emotional generation and transformation. Here, we propose a two-dimensional van der Waals floating gate synaptic transistor using CrPS₄. Utilizing two weight dynamic updating characteristics of long-term potentiation and long-term depression, the synaptic activity related to emotional generation and transformation in the amygdala was effectively simulated. Due to the strong charge-trapping ability of CrPS₄, the enhanced negative gate pulse increased channel conductance, thereby simulating various emotional levels. Meanwhile, the rate of decrease in channel conductance was regulated by the positive gate pulse voltage during long-term depression, allowing for the simulation of slow, rapid, and instantaneous emotional transitions. This work explored electronic devices that mimic the emotional biological function of the amygdala, displaying potential applications in human-computer interactions and intelligent robots.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 3","pages":"1517–1525 1517–1525"},"PeriodicalIF":5.3,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143091058","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}