{"title":"Artificial diamond as a next generation material for gas sensors.","authors":"Nipun Sharma, Alexey Kucherik, Dmitriy Buharov, Vlad Samyshkin, Anton Osipov, Bordanov Ilya, Sergey Shchanikov, Mahesh Kumar","doi":"10.1088/1361-6528/adf449","DOIUrl":"https://doi.org/10.1088/1361-6528/adf449","url":null,"abstract":"<p><p>Diamond based gas sensors have drawn a lot of interest because of their remarkable resilience, stability, and sensitivity in harsh conditions. Artificial diamonds have emerged as a cornerstone material in advanced technology due to their exceptional physical, chemical, and optical properties. The broad bandgap, chemical inertness, and superior thermal conductivity of diamonds are utilized by these sensors to provide excellent resistance to extreme temperatures and severe environments. The sensitivity of the sensor to various gases is enhanced by hydrogen-terminated diamond surfaces, which enable p-type surface conductivity through charge transfer interactions. Advances in chemical vapor deposition (CVD) techniques have increased the availability of high-quality diamond films for microfabricated sensor systems. Applications of diamond in environmental monitoring and industrial safety, with a focus on detecting dangerous gases including CO, NOx, and volatile organic compounds (VOC), have been the main focus of the review. This study provides a comprehensive recent report of diamond-based gas sensors, emphasizing advancements as well as possible directions for the future. This review is really helpful for researchers looking to employ artificial diamonds in extreme conditions for the detection of gases to develop solutions in a quickly changing technological context.
.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144718221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-07-24DOI: 10.1088/1361-6528/ade5fb
Yang Deng, Weihao Zhai, Chongyang Fu, Qizheng Li, Yanqiang Li, Huaisong Zhao, Xiaoxiong Wang
{"title":"Underwater<i>in-situ</i>low-frequency vibration sensor based on oriented electrospinning.","authors":"Yang Deng, Weihao Zhai, Chongyang Fu, Qizheng Li, Yanqiang Li, Huaisong Zhao, Xiaoxiong Wang","doi":"10.1088/1361-6528/ade5fb","DOIUrl":"https://doi.org/10.1088/1361-6528/ade5fb","url":null,"abstract":"<p><p>With the increasing importance of low-frequency signals in underwater monitoring, earthquake early warning, environmental noise analysis, and biomedical imaging, traditional sensor technologies face challenges such as limited flexibility, slow response time, and poor adaptability. Although existing sensors, such as electromagnetic, piezoelectric, and capacitive sensors, have made progress in certain areas, their applications are often restricted by complex environments. This paper innovatively proposes an<i>in-situ</i>vibration monitoring method, designing a low-frequency<i>in-situ</i>detection system based on triboelectric nanogenerator technology. The system not only enables efficient low-frequency signal detection in complex underwater environments but also, by incorporating machine learning algorithms, identifies different signal sources, achieving accurate distinction of intrinsic signals. The application of this technology realizes the concept of<i>in-situ</i>detection, breaking through the limitations of traditional sensor systems and providing a new solution for real-time monitoring of low-frequency signals.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":"36 30","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144699107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhanced ferroptosis by light-triggered biomimetic nano-erythrocyte membranes for tumor synergistic therapy.","authors":"Gaojian Liu, Wenjing Wen, Xuan Zhao, Yanan Jing, Hao Li, Xulong Fan, ZiXuan Huang, Gaofeng Liang","doi":"10.1088/1361-6528/ade1de","DOIUrl":"https://doi.org/10.1088/1361-6528/ade1de","url":null,"abstract":"<p><p>Breast cancer is the most prevalent fatal cancer among women worldwide and the leading cause of death for women. Ferroptosis is a form of programmed cell death that relies on iron and is non-apoptotic, triggered by the inhibition of the cellular antioxidant system. Photodynamic therapy (PDT) employs photosensitizers to produce reactive oxygen species (ROS), increasing oxidative stress in tumor cells. When combined with ferroptosis, PDT can work synergistically to regulate intracellular redox balance. In this study, we designed engineered nano-erythrocyte membranes for targeted delivery of Chlorin e6 (Ce6) and cisplatin (DDP) to enhance breast cancer treatment. By using mild ultrasound, Ce6 and DDP were co-loaded onto the nano-erythrocyte membranes, combining ferroptosis inducers and photosensitizers to combat breast cancer. To improve targeting capability towards breast cancer, RGD cyclic peptides were modified onto the nano-erythrocyte membranes through a thiol-maleimide coupling reaction. The RGD-modified nano-erythrocyte membranes co-loaded with Ce6 and DDP not only inherited the good stability and significant biocompatibility of red blood cell membranes but also promoted the uptake by breast cancer cells, effectively inducing ferroptosis in these cells. In conclusion, this multifunctional 'natural' nanodrug delivery system provides an effective and safe method for PDT combined with ferroptosis for breast cancer treatment.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":"36 30","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144691047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"In situ confined construction of BiVO<sub>4</sub>/pg-C<sub>3</sub>N<sub>4</sub>direct Z-heterostructures and its efficient degradation and photodynamic sterilization of rhodamine under visible light.","authors":"Wenyuan Li, Chen Yuling Chen, Xiaolin Feng, Yanguang Chen, Xuanchun Hu, Caibai Yang, Yong Ye","doi":"10.1088/1361-6528/adf340","DOIUrl":"https://doi.org/10.1088/1361-6528/adf340","url":null,"abstract":"<p><p>Photocatalytic degradation is increasingly recognized as a highly effective approach for the removal of organic pollutants and pathogenic microorganisms from wastewater. Nevertheless, conventional unit catalysts often fall short of practical requirements, primarily due to their limited efficiency in photoinduced electron-hole transfer and the scarcity of active sites. In this work, three-dimensional porous material pg-C3N4 was synthesized utilizing the hard template method, employing dendritic mesoporous silica as the templating agent. And the nanoparticles of BiVO4/pg-C3N4 direct Z-heterojunction composite (BCN) were successfully constructed by using pg-C3N4 as growth template and BiVO4 in situ directed growth. The heterogeneous surface morphology of pg-C3N4 markedly enhances its capacity for visible light absorption and increases the availability of catalytic active sites. BCN demonstrates the ability to degrade 98% of Rhodamine B (RhB) under simulated solar irradiation within 120 min and effectively inactivates 2×107 cfu mL-1 of E. coli under similar conditions within 60 min. Notably, after five cycles of use, the structural integrity and functional properties of the material remain largely unaltered. The superior photocatalytic degradation and photodynamic sterilization performance of BCN can be primarily attributed to its narrower band gap width of 2.34 eV, reduced electrochemical impedance, and enhanced separation and transfer rate of photogenerated carriers. Collectively, these properties facilitate the effective degradation of organic pollutants and the robust inactivation of bacteria by BCN under visible light irradiation. The successful implementation of this research offers a theoretical foundation and experimental insights for the future development of advanced Z-type photocatalysts.
.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144699105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-07-22DOI: 10.1088/1361-6528/aded95
Buğçe Aydın, Serdar Bozoğlu, Nilgün Karatepe, Fatma Seniha Güner
{"title":"Folic acid-conjugated magnetic carbon nanotube nanocarriers for targeted delivery of mitoxantrone.","authors":"Buğçe Aydın, Serdar Bozoğlu, Nilgün Karatepe, Fatma Seniha Güner","doi":"10.1088/1361-6528/aded95","DOIUrl":"10.1088/1361-6528/aded95","url":null,"abstract":"<p><p>Dual or multi-targeted delivery systems are a crucial aspect of optimal cancer treatment. These systems minimize side effects while maximizing therapeutic efficiency. With this motivation, in this study, we developed a dual-targeted nanocarrier system by modifying bovine serum albumin-coated magnetic carbon nanotubes (mCNT-BSA) with folic acid (FA) to enhance both magnetic and receptor-mediated targeting. The novel carrier was characterized using Fourier transform infrared spectroscopy, scanning electron microscopy-energy dispersive x-ray spectroscopy, x-ray photoelectron spectroscopy, vibrating sample magnetometer, and thermogravimetric analysis. Results confirmed successful FA conjugation and sufficient magnetic properties (14.7 emu g<sup>-1</sup>) for external guidance. The system demonstrated a high mitoxantrone (MTO) loading capacity (120<i>µ</i>g mg<sup>-1</sup>) and pH-sensitive release behavior, supporting drug release in acidic tumor microenvironments.<i>In vitro</i>cytotoxicity assays showed reduced toxicity of mCNT-BSA-FA/MTO on the MDA-MB-231 cancer cell line to free MTO. These findings suggest that mCNT-BSA-FA is a promising nanocarrier system for dual-targeted and controlled MTO delivery.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144600990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-07-22DOI: 10.1088/1361-6528/adf2b1
Enver Faella, Luca Lozzi, Luca Camilli, Alla Zak, Filippo Giubileo, Antonio Di Bartolomeo, Maurizio Passacantando
{"title":"Light effects on graphene/tungsten disulfide nanotubes/graphene heterostructure.","authors":"Enver Faella, Luca Lozzi, Luca Camilli, Alla Zak, Filippo Giubileo, Antonio Di Bartolomeo, Maurizio Passacantando","doi":"10.1088/1361-6528/adf2b1","DOIUrl":"https://doi.org/10.1088/1361-6528/adf2b1","url":null,"abstract":"<p><p>In this study, we present a hybrid optoelectronic device consisting of a tungsten disulfide nanotubes deposited on graphene electrodes, forming ohmic contacts that enable efficient charge transport. The heterostructure is fabricated on a flexible polyethylene terephthalate substrate. Comprehensive electrical and optoelectronic characterizations are conducted under various environmental conditions, with a focus on photocurrent response and the photovoltaic effect. The device shows a broadband photoresponse from 405 to 900 nm, reaching its best performance at 880 nm, where it delivers a peak responsivity of 0.07 mA/W, a specific detectivity of 2.3 × 107 Jones and rise/decay constants of 1.6 s / 1.5 s, measured under 405 nm illumination at an incident power of 0.19 mW (there is also a long time tail of 23 s, attributed to trap-assisted processes). The long-wavelength cut-off (~ 880 nm) corresponds to an indirect bandgap of 1.4 ± 0.1 eV for the nanotubes. Under 520 nm illumination the heterostructure generates an open circuit photovoltage of ~ 15 mV and a short-circuit photocurrent of ~ 0.08 nA, confirming the presence of a photovoltaic effect. Illumination at 405 nm reveals a photocurrent response that is sensitive to changes in environmental pressure. These results highlight the multifunctionality of the heterostructure, which can be optimized for photovoltaic conversion, wearable photodetectors, and sensing applications.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144691045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-07-21DOI: 10.1088/1361-6528/aded97
Shuangjia Weng, Xinyu Wang, Hao Zhou, Kangwen He, Chi Chen, Xiaoxiao Lu
{"title":"Nickel-doped Sb<sub>4</sub>O<sub>5</sub>Cl<sub>2</sub>enables bifunctional electrochemical systems for efficient energy storage and saline water treatment.","authors":"Shuangjia Weng, Xinyu Wang, Hao Zhou, Kangwen He, Chi Chen, Xiaoxiao Lu","doi":"10.1088/1361-6528/aded97","DOIUrl":"10.1088/1361-6528/aded97","url":null,"abstract":"<p><p>Aqueous chloride-ion batteries have emerged as promising dual-functional electrochemical systems, offering simultaneous energy storage and desalination capabilities along with inherent environmental and economic benefits. Although Sb<sub>4</sub>O<sub>5</sub>Cl<sub>2</sub>-based anodes operate at favorable low potentials that help mitigate electrode dissolution, their practical application is hindered by limited cycling stability and suboptimal charge efficiency. In this work, we propose a nickel doping strategy that simultaneously enhances the structural stability and chloride-ion storage capacity of Sb<sub>4</sub>O<sub>5</sub>Cl<sub>2</sub>in aqueous electrochemical systems. The optimized sample exhibits outstanding chloride storage performances, delivering a specific capacity of 74.19 mAh g<sup>-1</sup>at 0.3 A g<sup>-1</sup>against an Ag counter electrode, while retaining 85% of its capacity after 200 cycles. When integrated into a hybrid desalination system utilizing a Prussian blue electrode, it delivers an impressive initial desalination capacity of 107.42 mg g<sup>-1</sup>at 1.2 V, maintaining 62.6% capacity retention after 30 cycles. This work proposes a defect chemistry strategy for developing stable, multifunctional electrodes with both energy storage and water purification functionalities, offering a promising material solution for sustainable and integrated resource management.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144600991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-07-21DOI: 10.1088/1361-6528/adee29
Jiale Lv, Dongliang Jia, Pei Yin, Dan Tan
{"title":"Tailoring optoelectronic properties of TMDs through atomic-scale solid-liquid interface engineering.","authors":"Jiale Lv, Dongliang Jia, Pei Yin, Dan Tan","doi":"10.1088/1361-6528/adee29","DOIUrl":"10.1088/1361-6528/adee29","url":null,"abstract":"<p><p>Transition metal dichalcogenides hold immense promise in photoelectrochemical applications, yet the atomic-scale electron transfer dynamics at their aqueous interfaces remain elusive. Here, we systematically investigate the underlying physical principles for MoS<sub>2</sub>, MoSe<sub>2</sub>, and MoTe<sub>2</sub>contact with water using first-principles calculations. Our calculations reveal that interfacial charge transfer occurs exclusively between surface atoms and adjacent water molecules, with the directionality governed by the relative work functions and the external pressure from water. This interfacial charge redistribution triggers band gap narrowing through conduction band downshift, directly modulating the optical responses. In-depth evaluation of joint density of states and critical points reveal that aqueous contact induces new characteristic peaks, broadening the high-intensity region. These findings advance the fundamental understanding of solid-liquid interfacial electrochemistry and establish a theoretical framework for semiconductor-based interfacial electron transfer. Moreover, our work highlights the feasibility of tailoring optical properties at the atomic scale through precise solid-liquid interface engineering, offering transformative insights for next-generation optoelectronic devices.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144608906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-07-18DOI: 10.1088/1361-6528/aded96
Shuhua Tu, Xinli Lou, Jie Feng
{"title":"Stable perovskite quantum dots encapsulated with polymethyl methacrylate microspheres used in 3D printing and white light emitting diodes.","authors":"Shuhua Tu, Xinli Lou, Jie Feng","doi":"10.1088/1361-6528/aded96","DOIUrl":"10.1088/1361-6528/aded96","url":null,"abstract":"<p><p>Perovskite quantum dots (PQDs) have excellent optoelectronic properties such as high quantum yield, narrow emission spectrum, and tunable wavelength. They are widely used in display, LED devices, photovoltaics and photo-detection, etc. However, due to the instability of PQDs, they are easily decomposed by humidity or water, which greatly hinders the practical application. To solve this issue, CsPbX<sub>3</sub>(X: Cl<sup>-</sup>, Br<sup>-</sup>, I<sup>-</sup>) PQDs encapsulated by polymethyl methacrylate (PMMA) microspheres were prepared by the swelling-shrinkage method. The CsPbBr<sub>3</sub>PQDs@PMMA composite microspheres maintain high luminescence intensity and photoluminescence quantum yield after 30 d in water. The fluorescence lifetime of CsPbBr<sub>3</sub>PQDs@PMMA can reach 31.36 ns and the quantum efficiency reached 55.67%. CsPbX<sub>3</sub>PQDs@PMMA microspheres with different colors can be obtained by changing the molar ratio of halogens. The stability of CsPbBr<sub>3</sub>PQDs@PMMA microspheres in air and water were investigated in details. The red, blue and green powders are encapsulated into LED devices with color coordinates of (0.3450, 0.3624), which is close to the ideal white light. The fluorescent powder can also be used in 3D printing fields.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144600992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NanotechnologyPub Date : 2025-07-18DOI: 10.1088/1361-6528/aded1a
Aini Ayunni Mohd Raub, Muhammad Haziq Daniel Rahim, Raihana Bahru, Rhonira Latif, Azrul Azlan Hamzah, Khanom Simarani, Jumril Yunas
{"title":"A review on zinc oxide nanostructures as antimicrobial agent: mechanism and applications.","authors":"Aini Ayunni Mohd Raub, Muhammad Haziq Daniel Rahim, Raihana Bahru, Rhonira Latif, Azrul Azlan Hamzah, Khanom Simarani, Jumril Yunas","doi":"10.1088/1361-6528/aded1a","DOIUrl":"https://doi.org/10.1088/1361-6528/aded1a","url":null,"abstract":"<p><p>The escalating threat of multidrug-resistant (MDR) pathogens has intensified the search for alternative antimicrobial strategies, with zinc oxide (ZnO) nanostructures (NSs) emerging as a promising solution due to their unique physicochemical properties. This review critically examines recent advances in the development and application of ZnO NSs as antimicrobial agents, with a focus on addressing the limitations of conventional antibiotics. It highlights the underlying mechanisms of action such as membrane disruption, reactive oxygen species generation, and ion release, and how these are influenced by NS size, morphology, and surface properties. The review also analyses key factors affecting antimicrobial efficacy, including environmental conditions, particle concentration, and synergistic effects with other materials. Applications discussed range from biomedical coatings and wound dressings to food packaging and water purification systems. By outlining current challenges in synthesis optimization, mechanistic understanding, and safety assessment, this review identifies critical knowledge gaps and provides a roadmap for future research. The paper is organized to first introduce the global context of MDR infections, followed by sections on antimicrobial mechanisms, influencing parameters, practical applications, and emerging perspectives in ZnO-based antimicrobial technologies.</p>","PeriodicalId":19035,"journal":{"name":"Nanotechnology","volume":"36 29","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144659685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}