Gi Beom Kim, Jung‐Woo Park, Jaehun Jeon, Hyejeong Jeong, Eun‐Sil Yu, Ki‐Hun Jeong
Spectroscopic multiplex bioassay allows the rapid and simultaneous detection of various biomarkers in biomedical applications. The high cost and bulky configuration of conventional spectrometers hinder the decentralization of biomedical instruments for point‐of‐care diagnostics. Here a flat‐field lens grating‐based microspectrometer (FLG‐µSPEC) is reported for continuous detection of multi‐target nucleic acid amplification. FLG‐µSPEC features the vertical integration of microslit, integrated flat‐field lens and transmission grating (FLG), concave mirror, and CMOS line sensor. FLG effectively corrects the field curvature by flattening the focal plane of dispersed wavelengths and also facilitates compact module packaging. FLG‐µSPEC module is precisely assembled into a dimension of 10 mm × 16 mm × 10 mm. The average spectral resolution exhibits 3.4 ± 0.9 nm over an operating range of 500 to 950 nm. A spectral detection system utilizing FLG‐µSPEC demonstrates the amplification of lambda DNA (𝜆‐DNA) for each target, exhibiting a high correlation with the obtained result from a conventional real‐time PCR (qPCR) machine. Furthermore, multiplex qPCR analysis using FLG‐µSPEC and spectral deconvolution successfully demonstrates simultaneous and accurate quantification of three different targets. The FLG‐µSPEC module offers diverse on‐demand analytical applications, including not only multiplex bioassay but also environmental monitoring.
{"title":"Flat‐Field Lens Grating Microspectrometer for Spectroscopic Multiplex Bioassay","authors":"Gi Beom Kim, Jung‐Woo Park, Jaehun Jeon, Hyejeong Jeong, Eun‐Sil Yu, Ki‐Hun Jeong","doi":"10.1002/admt.202401151","DOIUrl":"https://doi.org/10.1002/admt.202401151","url":null,"abstract":"Spectroscopic multiplex bioassay allows the rapid and simultaneous detection of various biomarkers in biomedical applications. The high cost and bulky configuration of conventional spectrometers hinder the decentralization of biomedical instruments for point‐of‐care diagnostics. Here a flat‐field lens grating‐based microspectrometer (FLG‐µSPEC) is reported for continuous detection of multi‐target nucleic acid amplification. FLG‐µSPEC features the vertical integration of microslit, integrated flat‐field lens and transmission grating (FLG), concave mirror, and CMOS line sensor. FLG effectively corrects the field curvature by flattening the focal plane of dispersed wavelengths and also facilitates compact module packaging. FLG‐µSPEC module is precisely assembled into a dimension of 10 mm × 16 mm × 10 mm. The average spectral resolution exhibits 3.4 ± 0.9 nm over an operating range of 500 to 950 nm. A spectral detection system utilizing FLG‐µSPEC demonstrates the amplification of lambda DNA (𝜆‐DNA) for each target, exhibiting a high correlation with the obtained result from a conventional real‐time PCR (qPCR) machine. Furthermore, multiplex qPCR analysis using FLG‐µSPEC and spectral deconvolution successfully demonstrates simultaneous and accurate quantification of three different targets. The FLG‐µSPEC module offers diverse on‐demand analytical applications, including not only multiplex bioassay but also environmental monitoring.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiaoting Wang, Fengyi Zhang, Rongrong Xu, Qianxi Yin, Mulin Li, Xianliang Huang, Teng Ma, Ziyi Chen, Jun Chen, Haibo Zeng
The function of photodetectors is to convert optical signals into current or voltage output. Polarization‐sensitive perovskite photodetectors have attracted significant interest because of their potential applications in imaging and remote sensing technologies. This study provides an overview of the advancements in research on halide perovskite photodetectors, particularly focusing on their capability for linear polarization‐sensitive detection. First, there is a brief description of the background and strengths of linear polarization‐sensitive photodetectors. Then, the core parameters of linear polarization‐sensitive photodetectors are introduced briefly. Third, according to the classification of active layer materials, linear polarization‐sensitive photodetectors are divided into 3D perovskites and low‐dimensional perovskites. The research on linear polarization‐sensitive perovskite detectors are reviewed. Finally, the developments and challenges faced by linear polarization‐sensitive perovskite photodetectors are analyzed.
{"title":"Recent Advances in Linear Polarization‐Sensitive Photodetectors Based on Perovskites with Different Molecular Dimensions","authors":"Xiaoting Wang, Fengyi Zhang, Rongrong Xu, Qianxi Yin, Mulin Li, Xianliang Huang, Teng Ma, Ziyi Chen, Jun Chen, Haibo Zeng","doi":"10.1002/admt.202401126","DOIUrl":"https://doi.org/10.1002/admt.202401126","url":null,"abstract":"The function of photodetectors is to convert optical signals into current or voltage output. Polarization‐sensitive perovskite photodetectors have attracted significant interest because of their potential applications in imaging and remote sensing technologies. This study provides an overview of the advancements in research on halide perovskite photodetectors, particularly focusing on their capability for linear polarization‐sensitive detection. First, there is a brief description of the background and strengths of linear polarization‐sensitive photodetectors. Then, the core parameters of linear polarization‐sensitive photodetectors are introduced briefly. Third, according to the classification of active layer materials, linear polarization‐sensitive photodetectors are divided into 3D perovskites and low‐dimensional perovskites. The research on linear polarization‐sensitive perovskite detectors are reviewed. Finally, the developments and challenges faced by linear polarization‐sensitive perovskite photodetectors are analyzed.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Stephen P. Beeby, Russel N. Torah, Mahmoud Wagih, Beckie Isaia, Sandy Black, Jessica Saunders, Kai Yang
Electronic textiles (e‐textiles) combine electronic functions (e.g., sensing, actuating, data processing) with textiles. E‐textiles are a platform technology with the potential for ubiquitous deployment in any application scenario where textiles can be found. E‐textiles have attracted significant research interests from materials and manufacturing process development to applications such as sports/fitness, healthcare, and workwear. While significant advances have been made in the research domain regarding the integration of electronic functionality, the technology is relatively immature and significant challenges remain in the manufacturing of commercialized e‐textile systems. This paper reviews the state of the art in e‐textile manufacturing including materials (e.g., yarns, inks), fabrication (e.g., weaving, knitting, printing), electronic integration and interconnections. This paper also reviews the key principles of textile sustainability and electronic waste (e‐wastemanagement, which provide useful guidance on e‐textile design and manufacturing to minimize their impact on the environment. Examples are given to demonstrate the early work toward sustainable e‐textiles. The remaining research challenges regarding scalable and sustainable manufacturing of e‐textiles are presented.
{"title":"Heterogeneous E‐Textiles: Materials, Manufacturing and Sustainability","authors":"Stephen P. Beeby, Russel N. Torah, Mahmoud Wagih, Beckie Isaia, Sandy Black, Jessica Saunders, Kai Yang","doi":"10.1002/admt.202400844","DOIUrl":"https://doi.org/10.1002/admt.202400844","url":null,"abstract":"Electronic textiles (e‐textiles) combine electronic functions (e.g., sensing, actuating, data processing) with textiles. E‐textiles are a platform technology with the potential for ubiquitous deployment in any application scenario where textiles can be found. E‐textiles have attracted significant research interests from materials and manufacturing process development to applications such as sports/fitness, healthcare, and workwear. While significant advances have been made in the research domain regarding the integration of electronic functionality, the technology is relatively immature and significant challenges remain in the manufacturing of commercialized e‐textile systems. This paper reviews the state of the art in e‐textile manufacturing including materials (e.g., yarns, inks), fabrication (e.g., weaving, knitting, printing), electronic integration and interconnections. This paper also reviews the key principles of textile sustainability and electronic waste (e‐wastemanagement, which provide useful guidance on e‐textile design and manufacturing to minimize their impact on the environment. Examples are given to demonstrate the early work toward sustainable e‐textiles. The remaining research challenges regarding scalable and sustainable manufacturing of e‐textiles are presented.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ludovico Migliaccio, Mehmet Girayhan Say, Gaurav Pathak, Imrich Gablech, Jan Brodský, Mary Jocelyn Donahue, Eric Daniel Głowacki
Electrolyte‐gated field effect transistors and electrochemical transistors have emerged as powerful components for bioelectronic sensors and biopotential recording devices. A set of parameters must be considered when developing devices to amplify weak electrophysiological signals. These include maximum transconductance values, cut‐off frequencies, and large on/off current ratios. Organic polymer‐based devices have recently dominated the field, especially when considering flexibility as a key factor. Oxide semiconductors may also offer these features, as well as advantages like higher mobility. Herein, flexible, ultrathin, indium tin oxide (ITO) electrolyte‐gated transistors are reported. These accumulation‐mode devices combine n‐type operation with µe = 9.5 cm2 Vs−1, high transconductance (gm = 44 mS), and on/off ratios (105) as well as optically transparent layouts. While oxides are normally considered brittle, mechanically flexible ITO layers are obtained by room temperature deposition of amorphous layers onto parylene C. This process results in low strain, producing devices that survive bending. ITO electrochemically degrades, however, with cycling. To overcome this, the surface is passivated with high dielectric constant inert capping layers of Ta2O5 or Ta2O5/AlN. This greatly improves stability while preserving low gate voltages. Based on their overall performance, ITO‐based EGFETs are promising for bioelectronics.
电解质门控场效应晶体管和电化学晶体管已成为生物电子传感器和生物电位记录装置的强大元件。在开发放大微弱电生理信号的设备时，必须考虑一系列参数。这些参数包括最大跨导值、截止频率和较大的导通/截止电流比。基于有机聚合物的器件最近在该领域占据了主导地位，尤其是在考虑灵活性这一关键因素时。氧化物半导体也可以提供这些特性，以及更高的迁移率等优势。本文报告了柔性超薄铟锡氧化物（ITO）电解质门控晶体管。这些积聚模式器件结合了 n 型操作（µe = 9.5 cm2 Vs-1）、高跨导（gm = 44 mS）、导通/截止比（105）以及光学透明布局。氧化物通常被认为是脆性物质，而机械柔性 ITO 层则是通过在对二甲苯 C 上室温沉积非晶层而获得的。然而，ITO 会在循环过程中发生电化学降解。为克服这一问题，可在表面钝化高介电常数的 Ta2O5 或 Ta2O5/AlN 惰性封盖层。这大大提高了稳定性，同时保持了较低的栅极电压。基于其整体性能，基于 ITO 的 EGFET 在生物电子学领域大有可为。
{"title":"Ultrathin Indium Tin Oxide Accumulation Mode Electrolyte‐Gated Transistors for Bioelectronics","authors":"Ludovico Migliaccio, Mehmet Girayhan Say, Gaurav Pathak, Imrich Gablech, Jan Brodský, Mary Jocelyn Donahue, Eric Daniel Głowacki","doi":"10.1002/admt.202302219","DOIUrl":"https://doi.org/10.1002/admt.202302219","url":null,"abstract":"Electrolyte‐gated field effect transistors and electrochemical transistors have emerged as powerful components for bioelectronic sensors and biopotential recording devices. A set of parameters must be considered when developing devices to amplify weak electrophysiological signals. These include maximum transconductance values, cut‐off frequencies, and large on/off current ratios. Organic polymer‐based devices have recently dominated the field, especially when considering flexibility as a key factor. Oxide semiconductors may also offer these features, as well as advantages like higher mobility. Herein, flexible, ultrathin, indium tin oxide (ITO) electrolyte‐gated transistors are reported. These accumulation‐mode devices combine n‐type operation with µ<jats:sub>e</jats:sub> = 9.5 cm<jats:sup>2</jats:sup> Vs<jats:sup>−1</jats:sup>, high transconductance (<jats:italic>g</jats:italic><jats:sub>m</jats:sub> = 44 mS), and on/off ratios (10<jats:sup>5</jats:sup>) as well as optically transparent layouts. While oxides are normally considered brittle, mechanically flexible ITO layers are obtained by room temperature deposition of amorphous layers onto parylene C. This process results in low strain, producing devices that survive bending. ITO electrochemically degrades, however, with cycling. To overcome this, the surface is passivated with high dielectric constant inert capping layers of Ta<jats:sub>2</jats:sub>O<jats:sub>5</jats:sub> or Ta<jats:sub>2</jats:sub>O<jats:sub>5</jats:sub>/AlN. This greatly improves stability while preserving low gate voltages. Based on their overall performance, ITO‐based EGFETs are promising for bioelectronics.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":"109 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Camilla Baratto, Guido Faglia, Thi Than Le Dang, Matteo Ferroni, Viktoria Holovanova, Bohdan Nazarchuk, Hanna Hakola, Tapio Niemi, Nikolai Tkachenko, Viacheslav Golovanov
Innovative research on metal‐oxide gas sensors involves nanostructuring and surface modification as key elements to tailor sensitivity and selectivity. This work addresses a ZnO nanowire‐based sensing device obtained by coupling a lithographically prepared substrate with hydrothermal ZnO growth, to align and interconnect the nanowires between two electrical contacts. Furthermore, conformal coating by atomic layer deposition technique allows functionalization of the surface of the nanowires with sub‐monolayers of Al2O3 and TiO2. A detailed analysis is carried out from a morphological and structural point of view with photoluminescence and Raman spectroscopy and electron microscopy. The material characterization results are analyzed in comparison with the functional characterization in gases toward reducing (NO2) and oxidizing (H2S) gases. Unparalleled sensing enhancement with Atomic Layer Deposition functionalization is obtained for NO2 detection. The passivation role of surface states is discussed combining information from experimental techniques with a proposed model.
{"title":"Tailoring the Surface Properties of ZnO Nanowires by ALD Deposition","authors":"Camilla Baratto, Guido Faglia, Thi Than Le Dang, Matteo Ferroni, Viktoria Holovanova, Bohdan Nazarchuk, Hanna Hakola, Tapio Niemi, Nikolai Tkachenko, Viacheslav Golovanov","doi":"10.1002/admt.202400937","DOIUrl":"https://doi.org/10.1002/admt.202400937","url":null,"abstract":"Innovative research on metal‐oxide gas sensors involves nanostructuring and surface modification as key elements to tailor sensitivity and selectivity. This work addresses a ZnO nanowire‐based sensing device obtained by coupling a lithographically prepared substrate with hydrothermal ZnO growth, to align and interconnect the nanowires between two electrical contacts. Furthermore, conformal coating by atomic layer deposition technique allows functionalization of the surface of the nanowires with sub‐monolayers of Al<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> and TiO<jats:sub>2</jats:sub>. A detailed analysis is carried out from a morphological and structural point of view with photoluminescence and Raman spectroscopy and electron microscopy. The material characterization results are analyzed in comparison with the functional characterization in gases toward reducing (NO<jats:sub>2</jats:sub>) and oxidizing (H<jats:sub>2</jats:sub>S) gases. Unparalleled sensing enhancement with Atomic Layer Deposition functionalization is obtained for NO<jats:sub>2</jats:sub> detection. The passivation role of surface states is discussed combining information from experimental techniques with a proposed model.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The current study concerns highly reliable visible light sensing by C60 fullerene functionalized single‐walled carbon nanotube (SWCNT) based phototransistor. The absorbance of visible light (532 nm) increases significantly due to the formation of an interlink between the SWCNT network and C60 clusters. Photogenerated excess electrons in SWCNT are trapped by the C60 clusters and increase the effective hole concentrations in the SWCNT channel, which eventually improves the photoconductive gain. C60‐SWCNT channel is further integrated into the back gated field effect transistor (FET) structure in which 90 nm SiO2 dielectric thickness is used. The responsivity toward visible light is further enlarged with appropriate negative gate electrostatic. In order to ensure the morphological and structural behavior of C60‐SWCNT, various microscopic and spectroscopic characterizations are performed. The C60‐SWCNT phototransistor exhibits responsivity of 1.219 A W−1 at Vgs = – 21 V. The detectivity and rise/fall time of C60‐SWCNT came around to be 2.34 × 1010 Jones, 86.42 ms/3.35 ms at the same Vgs. The maximum external quantum efficiency (EQE) of the C60‐SWCNT phototransistor is very high, ≈274%. In the overall study, a comprehensive discussion is introduced on the effect of variable gate potential on the performance of the C60‐SWCNT phototransistor.
{"title":"C60 Functionalized Single‐Walled Carbon Nanotube‐based Phototransistor for Efficient Detection of Visible Light Under Appropriate Gate Electrostatics","authors":"Divyanshu Rathore, Uttam Narendra Thakur, Arnab Hazra","doi":"10.1002/admt.202400949","DOIUrl":"https://doi.org/10.1002/admt.202400949","url":null,"abstract":"The current study concerns highly reliable visible light sensing by C<jats:sub>60</jats:sub> fullerene functionalized single‐walled carbon nanotube (SWCNT) based phototransistor. The absorbance of visible light (532 nm) increases significantly due to the formation of an interlink between the SWCNT network and C<jats:sub>60</jats:sub> clusters. Photogenerated excess electrons in SWCNT are trapped by the C<jats:sub>60</jats:sub> clusters and increase the effective hole concentrations in the SWCNT channel, which eventually improves the photoconductive gain. C<jats:sub>60</jats:sub>‐SWCNT channel is further integrated into the back gated field effect transistor (FET) structure in which 90 nm SiO<jats:sub>2</jats:sub> dielectric thickness is used. The responsivity toward visible light is further enlarged with appropriate negative gate electrostatic. In order to ensure the morphological and structural behavior of C<jats:sub>60</jats:sub>‐SWCNT, various microscopic and spectroscopic characterizations are performed. The C<jats:sub>60</jats:sub>‐SWCNT phototransistor exhibits responsivity of 1.219 A W<jats:sup>−1</jats:sup> at V<jats:sub>gs</jats:sub> = – 21 V. The detectivity and rise/fall time of C<jats:sub>60</jats:sub>‐SWCNT came around to be 2.34 × 10<jats:sup>10</jats:sup> Jones, 86.42 ms/3.35 ms at the same V<jats:sub>gs</jats:sub>. The maximum external quantum efficiency (EQE) of the C<jats:sub>60</jats:sub>‐SWCNT phototransistor is very high, ≈274%. In the overall study, a comprehensive discussion is introduced on the effect of variable gate potential on the performance of the C<jats:sub>60</jats:sub>‐SWCNT phototransistor.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":"42 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jinqing Cao, Song Gao, Qian Zhang, Yawei Liu, Jianchun Xu, Kai Liu, Ke Bi
Hyperthermia, utilizing various types of energy sources such as microwaves, holds great promise for cancer treatment. The intense interaction between microwaves and substances during hyperthermia can produce heat efficiently, leading to the inactivation of cancer cells. Mie‐type resonance is widely studied in the regulation of electromagnetic waves, offering a new perspective for microwave hyperthermia. In this study, a Mie‐type dielectric resonator is reported for microwave hyperthermia using high‐permittivity and temperature‐stable ceramic. The proposed dielectric particles have the characteristics of compact size, low cost, and excellent biocompatibility. The resonant frequency of the system can be finely tuned through material design and arrangement, thus expanding its potential application scenarios. The dielectric particles can be rapidly heated under microwave irradiation, thereby enabling effective hyperthermia to eliminate cancer cells. This work demonstrates the potential of a safe and tunable Mie‐type dielectric resonator in microwave hyperthermia, which is expected to promote further research on Mie‐type resonance in the biomedical field.
{"title":"Dielectric Resonators for Microwave Hyperthermia","authors":"Jinqing Cao, Song Gao, Qian Zhang, Yawei Liu, Jianchun Xu, Kai Liu, Ke Bi","doi":"10.1002/admt.202400896","DOIUrl":"https://doi.org/10.1002/admt.202400896","url":null,"abstract":"Hyperthermia, utilizing various types of energy sources such as microwaves, holds great promise for cancer treatment. The intense interaction between microwaves and substances during hyperthermia can produce heat efficiently, leading to the inactivation of cancer cells. Mie‐type resonance is widely studied in the regulation of electromagnetic waves, offering a new perspective for microwave hyperthermia. In this study, a Mie‐type dielectric resonator is reported for microwave hyperthermia using high‐permittivity and temperature‐stable ceramic. The proposed dielectric particles have the characteristics of compact size, low cost, and excellent biocompatibility. The resonant frequency of the system can be finely tuned through material design and arrangement, thus expanding its potential application scenarios. The dielectric particles can be rapidly heated under microwave irradiation, thereby enabling effective hyperthermia to eliminate cancer cells. This work demonstrates the potential of a safe and tunable Mie‐type dielectric resonator in microwave hyperthermia, which is expected to promote further research on Mie‐type resonance in the biomedical field.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This research unveils a transformative methodology for fabricating flexible printed circuit boards (PCBs), focusing on the unique attributes of filter paper substrates. A meticulous parametric exploration scrutinizes critical aspects such as buckling resistance, charging current, plating time, and electrode configurations for copper electroplating. Key findings highlight the exceptional stability of copper electroplating on filter paper, exhibiting robust resistance against environmental variations and bending angles spanning +180° to −180°. Utilizing higher pencil grade material and maintaining a minimum 4 cm distance with a voltage range of 3 to 1.44 V ensures uniform, controlled plating without burning, optimizing the electrode area below 1 cm2 for enhanced practicality. The research underscores the longevity and durability of copper‐plated filter paper, with negligible resistance changes even after 1000 folds. Over a year, the shelf‐life assessment emphasizes the excellent stability of electroplated filter paper. Practical applications, including fully functional circuits and a bio‐degradable piano, underscore the versatility and real‐world feasibility of the proposed electroplating technique.
{"title":"Optimized Fabrication of Flexible Paper‐Based PCBs with Pencil and Copper Electroplating","authors":"Vinit Srivastava, Shivam Dubey, Rahul Vaish, Bharat Singh Rajpurohit","doi":"10.1002/admt.202400688","DOIUrl":"https://doi.org/10.1002/admt.202400688","url":null,"abstract":"This research unveils a transformative methodology for fabricating flexible printed circuit boards (PCBs), focusing on the unique attributes of filter paper substrates. A meticulous parametric exploration scrutinizes critical aspects such as buckling resistance, charging current, plating time, and electrode configurations for copper electroplating. Key findings highlight the exceptional stability of copper electroplating on filter paper, exhibiting robust resistance against environmental variations and bending angles spanning +180° to −180°. Utilizing higher pencil grade material and maintaining a minimum 4 cm distance with a voltage range of 3 to 1.44 V ensures uniform, controlled plating without burning, optimizing the electrode area below 1 cm<jats:sup>2</jats:sup> for enhanced practicality. The research underscores the longevity and durability of copper‐plated filter paper, with negligible resistance changes even after 1000 folds. Over a year, the shelf‐life assessment emphasizes the excellent stability of electroplated filter paper. Practical applications, including fully functional circuits and a bio‐degradable piano, underscore the versatility and real‐world feasibility of the proposed electroplating technique.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":"37 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142194089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammad Ali Haghighat Bayan, Chiara Rinoldi, Alicja Kosik‐Kozioł, Magdalena Bartolewska, Daniel Rybak, Seyed Shahrooz Zargarian, Syed Ahmed Shah, Zuzanna J. Krysiak, Shichao Zhang, Massimiliano Lanzi, Paweł Nakielski, Bin Ding, Filippo Pierini
Hierarchical nanostructures fabricate by electrospinning in combination with light‐responsive agents offer promising scenarios for developing novel activable antibacterial interfaces. This study introduces an innovative antibacterial face mask developed from poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) (PHBV) nanofibers integrated with indocyanine green (ICG), targeting the urgent need for effective antimicrobial protection for community health workers. The research focuses on fabricating and characterizing this nanofibrous material, evaluating the mask's mechanical and chemical properties, investigating its particle filtration, and assessing antibacterial efficacy under photothermal conditions for reactive oxygen species (ROS) generation. The PHBV/ICG nanofibers are produced using an electrospinning process, and the nanofibrous construct's morphology, structure, and photothermal response are investigated. The antibacterial efficacy of the nanofibers is tested, and substantial bacterial inactivation under both near‐infrared (NIR) and solar irradiation is demonstrated due to the photothermal response of the nanofibers. The material's photothermal response is further analyzed under cyclic irradiation to simulate real‐world conditions, confirming its durability and consistency. This study highlights the synergistic impact of PHBV and ICG in enhancing antibacterial activity, presenting a biocompatible and environmentally friendly solution. These findings offer a promising path for developing innovative face masks that contribute significantly to the field of antibacterial materials and solve critical public health challenges.
{"title":"Solar‐to‐NIR Light Activable PHBV/ICG Nanofiber‐Based Face Masks with On‐Demand Combined Photothermal and Photodynamic Antibacterial Properties","authors":"Mohammad Ali Haghighat Bayan, Chiara Rinoldi, Alicja Kosik‐Kozioł, Magdalena Bartolewska, Daniel Rybak, Seyed Shahrooz Zargarian, Syed Ahmed Shah, Zuzanna J. Krysiak, Shichao Zhang, Massimiliano Lanzi, Paweł Nakielski, Bin Ding, Filippo Pierini","doi":"10.1002/admt.202400450","DOIUrl":"https://doi.org/10.1002/admt.202400450","url":null,"abstract":"Hierarchical nanostructures fabricate by electrospinning in combination with light‐responsive agents offer promising scenarios for developing novel activable antibacterial interfaces. This study introduces an innovative antibacterial face mask developed from poly(3‐hydroxybutyrate‐<jats:italic>co</jats:italic>‐3‐hydroxyvalerate) (PHBV) nanofibers integrated with indocyanine green (ICG), targeting the urgent need for effective antimicrobial protection for community health workers. The research focuses on fabricating and characterizing this nanofibrous material, evaluating the mask's mechanical and chemical properties, investigating its particle filtration, and assessing antibacterial efficacy under photothermal conditions for reactive oxygen species (ROS) generation. The PHBV/ICG nanofibers are produced using an electrospinning process, and the nanofibrous construct's morphology, structure, and photothermal response are investigated. The antibacterial efficacy of the nanofibers is tested, and substantial bacterial inactivation under both near‐infrared (NIR) and solar irradiation is demonstrated due to the photothermal response of the nanofibers. The material's photothermal response is further analyzed under cyclic irradiation to simulate real‐world conditions, confirming its durability and consistency. This study highlights the synergistic impact of PHBV and ICG in enhancing antibacterial activity, presenting a biocompatible and environmentally friendly solution. These findings offer a promising path for developing innovative face masks that contribute significantly to the field of antibacterial materials and solve critical public health challenges.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142224965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zichao Guo, Zhendong Li, Kexin Zeng, Jie Ye, Xinying Lu, Ziping Lei, Zhonggang Wang
A customized metamaterial tailored for a specific functionality holds significant appeal in practical applications, yet its alteration after the structure is established can be challenging. A novel design for Fibonacci‐array inspired acoustic metamaterials is introduced, which are constructed using metamaterial bricks with unique physical mechanisms. This design aims to achieve multifunctional low‐frequency sound absorption. The Fibonacci sequence arrangement flexibly modulates the coupling between metamaterial bricks, thereby improving energy‐dissipating efficiency. Additionally, the strategic alignment enhances the wave‐absorbing properties of the metamaterial, allowing it to demonstrate remarkable absorption effects across targeted frequency bands. By controlling the resonance effect of metamaterial bricks in intensive and sparse modes, the proposed design exhibited frequency‐selective performance, resulting in three absorption peaks at 323, 687, and 1113 Hz, respectively, across low‐ to high‐frequency ranges. Furthermore, the broadband absorption performance, characterized by strong coupling strength, enables continuous sound absorption over a low‐frequency band from 290 to 440 Hz. This is supported by theoretical analysis, numerical simulations, and experimental results, showcasing the flexible modulation of the propagation characteristics of sound waves. Overall, this functionally actuated design dramatically enhances the tunability of the metamaterials and offers a promising avenue for multifunctional application in noise‐control engineering.
{"title":"Fibonacci‐Array Inspired Modular Acoustic Metamaterials for Tunable Low‐Frequency Absorption","authors":"Zichao Guo, Zhendong Li, Kexin Zeng, Jie Ye, Xinying Lu, Ziping Lei, Zhonggang Wang","doi":"10.1002/admt.202400934","DOIUrl":"https://doi.org/10.1002/admt.202400934","url":null,"abstract":"A customized metamaterial tailored for a specific functionality holds significant appeal in practical applications, yet its alteration after the structure is established can be challenging. A novel design for Fibonacci‐array inspired acoustic metamaterials is introduced, which are constructed using metamaterial bricks with unique physical mechanisms. This design aims to achieve multifunctional low‐frequency sound absorption. The Fibonacci sequence arrangement flexibly modulates the coupling between metamaterial bricks, thereby improving energy‐dissipating efficiency. Additionally, the strategic alignment enhances the wave‐absorbing properties of the metamaterial, allowing it to demonstrate remarkable absorption effects across targeted frequency bands. By controlling the resonance effect of metamaterial bricks in intensive and sparse modes, the proposed design exhibited frequency‐selective performance, resulting in three absorption peaks at 323, 687, and 1113 Hz, respectively, across low‐ to high‐frequency ranges. Furthermore, the broadband absorption performance, characterized by strong coupling strength, enables continuous sound absorption over a low‐frequency band from 290 to 440 Hz. This is supported by theoretical analysis, numerical simulations, and experimental results, showcasing the flexible modulation of the propagation characteristics of sound waves. Overall, this functionally actuated design dramatically enhances the tunability of the metamaterials and offers a promising avenue for multifunctional application in noise‐control engineering.","PeriodicalId":7200,"journal":{"name":"Advanced Materials & Technologies","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142193885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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