Nano Trends最新文献_第8页

Self-powered infrared detector enabled by interfacial anchoring and thermal reinforcement 通过界面锚固和热加固实现自供电红外探测器

Nano Trends Pub Date : 2024-11-17 DOI: 10.1016/j.nwnano.2024.100061

Xiaolan Luo, Weixiong Li, Liu Yuan, Guangzhong Xie, Yuanjie Su

{"title":"Self-powered infrared detector enabled by interfacial anchoring and thermal reinforcement","authors":"Xiaolan Luo, Weixiong Li, Liu Yuan, Guangzhong Xie, Yuanjie Su","doi":"10.1016/j.nwnano.2024.100061","DOIUrl":"10.1016/j.nwnano.2024.100061","url":null,"abstract":"<div><div>Pyroelectricity enables autonomous perception and remote detection in the field of infrared sensor, human machine interfacing and virtual reality. However, the low pyroelectric coefficient and inferior thermal conductivity hinders the energy conversion and signal transduction of pyroelectric sensors. Herein, we designed and prepared PZT-CNT/PVDF ternary composite (PTC) capable of infrared sensing and noncontact human machine interfacing (HMI). The incorporation of CNT not only facilitates the photo-thermal energy conversion and the heat transfer toward embedded PZT fillers, but also boost the <em>all-trans</em> conformation of fluoropolymer matrix and thus pyroelectric activity. The influence of CNT doping mass fractions on the pyroelectric noncontacted HMI and infrared detection properties was investigated. It is found that a doping content of 3 wt% gives rise to an optimal proximity sensitivity of 55.78 % and infrared detection optimum value of F<sub>d</sub> 6.42 μPa<sup>−1/2</sup>, which is 13.97 % higher than that of the undoped version. This work provides insight into the interfacial coupling mechanism of pyroelectrics, and offers the new possibility for design of high-performance self-powered sensing devices.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"8 ","pages":"Article 100061"},"PeriodicalIF":0.0,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142703700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DNA origami-based nano-vaccines for cancer immunotherapy 基于 DNA 折纸的纳米疫苗用于癌症免疫疗法

Nano Trends Pub Date : 2024-11-16 DOI: 10.1016/j.nwnano.2024.100060

Tanvir Ahmed

{"title":"DNA origami-based nano-vaccines for cancer immunotherapy","authors":"Tanvir Ahmed","doi":"10.1016/j.nwnano.2024.100060","DOIUrl":"10.1016/j.nwnano.2024.100060","url":null,"abstract":"<div><div>Advancements in cancer immunotherapy have been notable; however, challenges remain regarding precision and the capacity to generate robust immune responses. This review explores the potential of DNA origami, an innovative method for structuring DNA into complex forms, as a platform for advanced cancer vaccines. DNA origami enables precise control over the molecular arrangement on its surface. Researchers can precisely modulate the immune response by conjugating tumor-specific antigens and adjuvants to DNA origami nanocarriers. This targeted approach demonstrates significant promise in overcoming the shortcomings of existing immunotherapies. This may enhance vaccine efficacy by facilitating the efficient delivery of antigens and adjuvants to immune cells. The precise control of adjuvant placement can minimize unnecessary immune stimulation and reduce unwanted side effects. The modular structure of DNA origami facilitates the development of personalized vaccines aimed at targeting specific mutations present in a patient's tumor. This advancement offers significant potential for bringing in a new era of precise cancer therapy. DNA origami nanocarriers demonstrate significant potential in enhancing the safety, efficacy, and precision of cancer immunotherapies.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"8 ","pages":"Article 100060"},"PeriodicalIF":0.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multifunctional scaffolds of β-tricalcium phosphate/bioactive glass coated with zinc oxide and copper oxide nanoparticles 涂有氧化锌和氧化铜纳米颗粒的β-磷酸三钙/生物活性玻璃多功能支架

Nano Trends Pub Date : 2024-11-10 DOI: 10.1016/j.nwnano.2024.100059

Rodrigo L.M.S. Oliveira , Lucas Barbosa , Thaís C. Pereira , Luísa R.M. Dona , Thiago G. Tabuti , Dayane B. Tada , Eduardo R. Triboni , Luciane D. de Oliveira , Eliandra S. Trichês

{"title":"Multifunctional scaffolds of β-tricalcium phosphate/bioactive glass coated with zinc oxide and copper oxide nanoparticles","authors":"Rodrigo L.M.S. Oliveira , Lucas Barbosa , Thaís C. Pereira , Luísa R.M. Dona , Thiago G. Tabuti , Dayane B. Tada , Eduardo R. Triboni , Luciane D. de Oliveira , Eliandra S. Trichês","doi":"10.1016/j.nwnano.2024.100059","DOIUrl":"10.1016/j.nwnano.2024.100059","url":null,"abstract":"<div><div>Incorporating nanoparticles into scaffolds with regenerative potential is a promissory strategy to provide them with antimicrobial activity. Bioceramics, such as β-tricalcium phosphate (β-TCP) and bioactive glasses (BGs), stand out among synthetic materials for bone regeneration. In this context, we report the incorporation of zinc oxide (ZnO) and copper oxide/copper nitrate (CuO/Cu<sub>2</sub>H<sub>3</sub>NO<sub>5</sub>) nanoparticles onto the surface of the β-TCP/BG scaffolds. This report addresses the physicochemical characterization of the scaffolds, their antimicrobial activity, and their response to MC3T3-E1 cells. Our findings show that the incorporation of both nanoparticles effectively inhibited <em>S. aureus</em> growth<em>,</em> including its biofilm formation. While the presence of the nanoparticles initially decreased MC3T3-E1 cell viability, cell proliferation improved with prolonged incubation. Overall, the β-TCP/BG_Zn and β-TCP/BG_Cu scaffolds showed an early antimicrobial response, aiding infection eradication, while also supporting cell proliferation over time.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"8 ","pages":"Article 100059"},"PeriodicalIF":0.0,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142661330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanotechnology platforms for antigen and immunostimulant delivery in vaccine formulations 用于疫苗制剂中抗原和免疫刺激剂递送的纳米技术平台

Nano Trends Pub Date : 2024-11-08 DOI: 10.1016/j.nwnano.2024.100058

Patricio G. Márquez , Federico J. Wolman , Romina J. Glisoni

{"title":"Nanotechnology platforms for antigen and immunostimulant delivery in vaccine formulations","authors":"Patricio G. Márquez , Federico J. Wolman , Romina J. Glisoni","doi":"10.1016/j.nwnano.2024.100058","DOIUrl":"10.1016/j.nwnano.2024.100058","url":null,"abstract":"<div><div>Vaccines represent a cornerstone in global health history, marking one of the most significant scientific achievements. Initially consisting of live or attenuated microorganisms, vaccines have evolved to include subunit vaccines, which offer greater specificity, safety, and production advantages. However, subunit vaccines require adjuvants due to the low immunogenicity of their antigens. These adjuvants include immunostimulatory molecules and particulate systems, which serve as carriers for both antigens and immunostimulants. The nanoscale dimensions of these particulate systems confer distinct advantages. This review comprehensively discusses FDA- and EMA-approved vaccines that incorporate adjuvants, emphasizing the growing use of nanoparticulate adjuvants in enhancing vaccine efficacy and safety. The unique physicochemical properties of nanoscopic systems, such as hydrodynamic size, shape, surface charge, hydrophobicity and degradation profiles are explored, that determine their effectiveness in vaccine formulations.</div><div>Furthermore, innovations in production scalability and alternative delivery routes, such as oral or transdermal vaccines, offer promising solutions to global vaccine accessibility challenges, particularly in resource-limited settings. The ongoing integration of nanotechnology platforms thus continues to expand the potential of vaccines, ensuring safer, more effective, and more accessible solutions for global immunization efforts.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"8 ","pages":"Article 100058"},"PeriodicalIF":0.0,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142703699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances in cardiac sounds monitoring enabled by triboelectric sensors 三电传感器在心音监测方面取得的进展

Nano Trends Pub Date : 2024-11-03 DOI: 10.1016/j.nwnano.2024.100057

Xindan Hui , Hengyu Guo

引用次数: 0

A novel non-catalytic plasmonic immunoabsorbant assay amplification mechanism 新型非催化质子免疫吸附测定放大机制

Nano Trends Pub Date : 2024-10-15 DOI: 10.1016/j.nwnano.2024.100056

Aditya Saran , Shuai Hou , Yinglu Ji

{"title":"A novel non-catalytic plasmonic immunoabsorbant assay amplification mechanism","authors":"Aditya Saran , Shuai Hou , Yinglu Ji","doi":"10.1016/j.nwnano.2024.100056","DOIUrl":"10.1016/j.nwnano.2024.100056","url":null,"abstract":"<div><div>The amplification of signals is dependent upon enzyme/ catalyst. Enzyme activity, specificity, pH condition, enzyme linkers, stability, storage and efficiency are some very important factors that can eventually affect the detection results. We aimed to amplify signals without the assistance of enzyme/ catalyst so that the strategy can be used in the wide range of signal detection including immune-assay. Silver nanocrystals (Ag NCs) grown from self-nucleation are used as chromogens due to their strong plasmon band at ∼ 400 nm. During 140 s of reaction time in presence of 6.10 mM CTAB and 0.61 mM of AgNO<sub>3</sub>, the 0.57 mM of Ascorbic acid allows Ag over growth on antibody-tagged gold nanospheres (10±0.5 nm) that competes silver atoms from the self-nucleation growth and thus affects the growth kinetics of the latter. By utilizing the opened kinetic window, sensitive detection has been achieved from 6.67 × 10<sup>–14</sup> M (1 pg) to 3.33 × 10<sup>–9</sup> M (50 ng) using human IgG as a model protein. The non-catalytic plasmonic immunoabsorbant assay we developed herein adds a new possibility of plasmonic NPs for sensitive detection. The detection slope and resolution is higher and better than those via signal amplification through the assistance of enzymes/ catalysts. This work supports the concept that nanoparticles mediated reactions are sensitive enough that they have the potential to go independently without enzymes/ catalyst assistance.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"8 ","pages":"Article 100056"},"PeriodicalIF":0.0,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142532506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Peeling-induced interfacial roughness and charging for enhanced triboelectric power generation 剥离诱导的界面粗糙度和充电，用于增强三电发电功能

Nano Trends Pub Date : 2024-10-05 DOI: 10.1016/j.nwnano.2024.100055

Da Woon Jin , Hyun Soo Ahn , Dheeraj Kumar , Joo Hyeong Lee , Min Su Kim , Yushin Eom , Ji Ho Youk , Huidrom Hemojit Singh , Jong Hun Kim , Jong Hoon Jung

{"title":"Peeling-induced interfacial roughness and charging for enhanced triboelectric power generation","authors":"Da Woon Jin , Hyun Soo Ahn , Dheeraj Kumar , Joo Hyeong Lee , Min Su Kim , Yushin Eom , Ji Ho Youk , Huidrom Hemojit Singh , Jong Hun Kim , Jong Hoon Jung","doi":"10.1016/j.nwnano.2024.100055","DOIUrl":"10.1016/j.nwnano.2024.100055","url":null,"abstract":"<div><div>To date, there have been a lot of efforts to enhance the conversion efficiency of triboelectric nanogenerators (TENGs) via physical and chemical modifications of the polymer surface. Herein, we report that a facile peeling of polymer from a substrate can enhance the triboelectric power output. The peeling of spin-coated polydimethylsiloxane (PDMS) from glass and polytetrafluoroethylene (PTFE) substrates has revealed a considerable increase in interfacial roughness and lateral friction. Surface-sensitive X-ray photoemission spectroscopy and non-contact current measurements have also revealed the transfer of counter-material and interfacial charging. The surface roughness of peeled PDMS is significant for the PTFE substrate, while the surface charge is significant for the glass substrate. The triboelectric output power density for peeled PDMS from the substrate is similar, 10.3 µW/cm<sup>2</sup>, but significantly larger than that for as-grown PDMS (2.2 µW/cm<sup>2</sup>). The peeling strength of PDMS significantly increases for glass compared to PTFE after the oxygen plasma treatment of substrates. The triboelectric charge of peeled PDMS from a plasma-treated glass substrate is almost 1.3 times larger than that from a PTFE substrate. This work implies that peeling polymer from a rough substrate with a large adhesion force would be a facile and effective way to increase the triboelectric power output, without any delicate surface treatments.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"8 ","pages":"Article 100055"},"PeriodicalIF":0.0,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Review on nanocellulose production from agricultural residue through response surface methodology and its applications 通过响应面方法利用农业残留物生产纳米纤维素及其应用综述

Nano Trends Pub Date : 2024-10-02 DOI: 10.1016/j.nwnano.2024.100054

Marjun C. Alvarado , Ma. Cristine Concepcion D. Ignacio , Ma. Camille G. Acabal , Anniver Ryan P. Lapuz , Kevin F. Yaptenco

引用次数: 0

The synergy of artificial intelligence and nanotechnology towards advancing innovation and sustainability - A mini-review 人工智能与纳米技术在推动创新和可持续发展方面的协同作用 - 综述

Nano Trends Pub Date : 2024-09-29 DOI: 10.1016/j.nwnano.2024.100052

David B. Olawade , Abimbola O. Ige , Abimbola G. Olaremu , James O. Ijiwade , Adedapo O. Adeola

{"title":"The synergy of artificial intelligence and nanotechnology towards advancing innovation and sustainability - A mini-review","authors":"David B. Olawade , Abimbola O. Ige , Abimbola G. Olaremu , James O. Ijiwade , Adedapo O. Adeola","doi":"10.1016/j.nwnano.2024.100052","DOIUrl":"10.1016/j.nwnano.2024.100052","url":null,"abstract":"<div><div>The convergence of Artificial Intelligence (AI) and nanotechnology is a transformative frontier, holding vast potential for scientific and technological advancements. This review explores the integration of AI and nanotechnology, aiming to uncover current trends, challenges, and future directions across various domains. A scientometric approach was employed, gathering and analyzing existing literature and research in the fields of AI and nanotechnology. Through a systematic examination of recent studies and developments, we identified key trends, challenges, and potential pathways for future research and applications. Findings from this review highlight the significant impact of AI-driven nanotechnology in materials discovery and design, healthcare, environmental monitoring, energy conversion, and quantum computing. These areas have witnessed remarkable advancements, such as the development of novel nanomaterials, precise drug delivery systems, advanced nanosensors, and efficient energy storage solutions. However, challenges persist, including insufficient interdisciplinary collaboration, data quality, ethical concerns, and regulatory frameworks. While challenges require careful consideration and mitigation, the potential for innovation and progress in diverse domains is undeniable. This review underscores the importance of responsible AI use and ongoing research to unlock the full potential of this convergence, ultimately shaping the future of science and technology.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"8 ","pages":"Article 100052"},"PeriodicalIF":0.0,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-powered highly stretchable ferroelectret nanogenerator towards intelligent sports 面向智能运动的自供电高伸展性铁电体纳米发电机

Nano Trends Pub Date : 2024-09-28 DOI: 10.1016/j.nwnano.2024.100053

Yiqin Wang , Xianfa Cai , Yufeng Guo , Zhi Chen , Yunqi Cao , Wangdi Du , Tian Xia , Nelson Sepulveda , Wei Li

{"title":"Self-powered highly stretchable ferroelectret nanogenerator towards intelligent sports","authors":"Yiqin Wang , Xianfa Cai , Yufeng Guo , Zhi Chen , Yunqi Cao , Wangdi Du , Tian Xia , Nelson Sepulveda , Wei Li","doi":"10.1016/j.nwnano.2024.100053","DOIUrl":"10.1016/j.nwnano.2024.100053","url":null,"abstract":"<div><div>Ferroelectret nanogenerators (FENGs), recognized for their porous structures that facilitate charge retention, thereby creating giant electric dipoles and exhibiting remarkable piezoelectric properties, are utilized in the development of various flexible transducers. However, despite their flexibility, most developed ferroelectret nanogenerators lack adequate stretchability and satisfactory transverse piezoelectric properties, significantly inhibiting their widespread deployment in wearable or skin-mounted electronics. Here, we introduce a highly stretchable ferroelectret nanogenerator (HS-FENG) built from laser-induced graphene (LIG), Ecoflex and anhydrous ethanol, demonstrating exceptional flexibility and stretchability, along with longitudinal and transverse piezoelectric effects. The stretchability of HS-FENG can reach a record of 468 %, while the quasi-static piezoelectric coefficients <em>d</em><sub>33</sub> and <em>d</em><sub>31</sub> are approximately 120 pC/N and 70 pC/N, respectively. To our knowledge, this is the first demonstration of the developed FENG with remarkably high stretchability. Furthermore, leveraging the performance of the created HS-FENG, we construct a skin-mounted intelligent kinesiology tape capable of effectively monitoring motion signals from human muscles and joints, thereby offering a deeper understanding of movement for users across different levels of physical activity, from professional athletes to individuals undergoing rehabilitation. The development of intelligent kinesiology tape exemplifies the potential of HS-FENG technology in enhancing professional athletic training and personalized healthcare. It contributes to the advancement of inconspicuous skin-mounted biomechanical feedback systems and human-machine interfaces, marking progress in the field.</div></div>","PeriodicalId":100942,"journal":{"name":"Nano Trends","volume":"8 ","pages":"Article 100053"},"PeriodicalIF":0.0,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0