Flexible and Printed Electronics最新文献

Flexible ultrathin organic electrochemical transistor (OECT)-based portable system for monitoring and stimulation of bladder muscle. 基于柔性超薄有机电化学晶体管（OECT）的便携式膀胱肌肉监测和刺激系统。

IF 2.9 4区工程技术

Flexible and Printed Electronics Pub Date : 2026-09-01 Epub Date: 2026-08-27 DOI: 10.1088/2058-8585/ae9bd1

Minghui Zhu, Roshini Suresh, Bahareh Vahabi, Faezeh Arab Hassani

{"title":"Flexible ultrathin organic electrochemical transistor (OECT)-based portable system for monitoring and stimulation of bladder muscle.","authors":"Minghui Zhu, Roshini Suresh, Bahareh Vahabi, Faezeh Arab Hassani","doi":"10.1088/2058-8585/ae9bd1","DOIUrl":"10.1088/2058-8585/ae9bd1","url":null,"abstract":"Patients with bladder underactivity experience difficulty in sensing bladder fullness and emptying the bladder efficiently, leading to chronic urinary retention. An implantable bidirectional device that combines capturing bladder smooth muscle activities with stimulation could enable closed-loop assistance and offer benefits compared to the common timed intermittent catheterization. Most existing bidirectional systems lean on passive metal electrodes as the interface, which provide no intrinsic signal amplification for low-amplitude bladder electromyography sensing and offer limited charge-injection capacity for effective and safe stimulation. Organic electrochemical transistors (OECTs) offer an attractive alternative with high sensitivity for biopotential measurements and effective stimulation capability due to their high-capacitance polymer channels. In this study, we used a custom-made portable system for a flexible ultrathin OECT array to shape a bidirectional recording and stimulation interface for bladder smooth muscle. We validate the system's recording and stimulation performance under ex vivo conditions by using an organ bath setup equipped with a commercial force transducer as a mechanical reference. The array recordings showed stable baselines during inactive periods and clear and repeatable low-frequency output changes that matched force changes during spontaneous muscle contractions. The system also delivered programmed pulse trains that consistently triggered measurable contractions in the muscle, proving its reliable stimulation capability. These findings establish a practical foundation for OECT-enabled closed-loop bladder monitoring and stimulation and support the broader use of active organic bioelectronics as bidirectional interfaces for soft and dynamic organs.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"11 3","pages":"035012"},"PeriodicalIF":2.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13519239/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148842026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An acrylate resin/perfluoropolyether film with enhanced hydrophobicity and lowered adhesion surface for precision printed electronics 一种丙烯酸树脂/全氟聚醚薄膜，具有增强的疏水性和降低的粘附表面，用于精密印刷电子产品

4区工程技术

Flexible and Printed Electronics Pub Date : 2025-09-30 DOI: 10.1088/2058-8585/ae0d9d

Hui Xu, 克時清水, Xin Li, Subin Jiang, Qingyuan Li, Ni Yin, Zunshuo Li, yabin zhang, Jian Lin, Qi Chen, Song Qiu, Fengqi Guo, Chang‐Qi Ma

{"title":"An acrylate resin/perfluoropolyether film with enhanced hydrophobicity and lowered adhesion surface for precision printed electronics","authors":"Hui Xu, 克時清水, Xin Li, Subin Jiang, Qingyuan Li, Ni Yin, Zunshuo Li, yabin zhang, Jian Lin, Qi Chen, Song Qiu, Fengqi Guo, Chang‐Qi Ma","doi":"10.1088/2058-8585/ae0d9d","DOIUrl":"https://doi.org/10.1088/2058-8585/ae0d9d","url":null,"abstract":"Abstract Spontaneously patterned circuits are regarded as one of the most promising green manufacturing methods that are non-lithographic and mold-free, attracting increasing attention. Liquid-mimicking surfaces allow polar or non-polar liquids to slide easily on slightly inclined modified surfaces without residue, achieving liquid repulsion and self-cleaning functions. Combining the advantages of this sliding property with specific patterned physicochemical characteristics is expected to further enhance printing resolution. In this manuscript, we developed a heterogeneous composite film consisting of a UV-sensitive (2-nitro-1,4-phenylene)bis(methylene) diacrylate resin film (referred to as NBE) overlaid with a layer of hydrophobic perfluoropolyether (referred to as 507 A). The tunable surface property of the NBE resin film under UV light ( λ = 254 nm) irradiation enables the hydrophobic surface (with a water contact angle, WCA of 112°) of the composite film to a hydrophilic surface (with a WCA of 4°), allowing the formation of patterned wettability surface after light exposure. More importantly, the highly hydrophobic perfluoropolyether surface shows a low adhesive surface, which enables a cleaner surface in the hydrophobic area during printing. Angle-resolved x-ray photoelectron spectroscopy and atomic force microscopy tests revealed the differences in surface morphology and elemental distribution of the composite film before and after UV light exposure. In combination with a photomask, fine circuit structures with minimal line width/space of 5/5 μ m were successfully achieved. The printed circuit was used for carbon nanotube-based thin film transistors, which displayed charge carrier mobilities of 4.51 ± 1.63 cm 2 · s −1 · V −1 , demonstrating the practicality of this precision printing technique.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"10 4","pages":"045005-045005"},"PeriodicalIF":0.0,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147920081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Profile improvement of blade coated circuits by the capillary force originating from the hydrophobic sidewalls 疏水侧壁毛细力对叶片涂覆电路外形的改善

4区工程技术

Flexible and Printed Electronics Pub Date : 2024-09-01 DOI: 10.1088/2058-8585/ad7864

Tang Cheng, Rui Liu, Shanyou Zhu, Subin Jiang, 克時清水, Jian Lin, Chang‐Qi Ma

{"title":"Profile improvement of blade coated circuits by the capillary force originating from the hydrophobic sidewalls","authors":"Tang Cheng, Rui Liu, Shanyou Zhu, Subin Jiang, 克時清水, Jian Lin, Chang‐Qi Ma","doi":"10.1088/2058-8585/ad7864","DOIUrl":"https://doi.org/10.1088/2058-8585/ad7864","url":null,"abstract":"Abstract Restricting the diffusion of conductive inks plays a key role in printed electronics application. Micro-channels with different sidewall surface energies, which can be approximated as a capillary, are fabricated to restrict the blade-coated ink diffusion using both of the gravitational effect and the capillary force. The coffee ring effect of aqueous silver ink is inhibited by the capillary force when the hydrophobic sidewalls distance is no more than 50 μ m in this paper. As a result, the conductive lines with improved cross-sectional profiles are obtained by this method, with the typical resistivity more than 10 8 times lower than the measured results with hydrophilic sidewalls. The capillary force was also found to lose its effect when the width is larger enough, which needs surfactant addition to improve the silver film property. I–V curves of the original aqueous ink and the ink improved by traditional methods shows that the profile improvement by the hydrophobic sidewall can be used with other ink improving methods cooperatively. These studies open up the possibility of improving the printed conductive patterns by this method as an auxiliary tool used together with the traditional methods reported before.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"9 3","pages":"035009-035009"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147899558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Dry printing fully functional eco-friendly and disposable transient papertronics 干式印刷全功能环保型一次性瞬态纸张电子元件

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-08-29 DOI: 10.1088/2058-8585/ad70c5

Adib Taba, Aarsh Patel, Masoud Mahjouri-Samani

{"title":"Dry printing fully functional eco-friendly and disposable transient papertronics","authors":"Adib Taba, Aarsh Patel, Masoud Mahjouri-Samani","doi":"10.1088/2058-8585/ad70c5","DOIUrl":"https://doi.org/10.1088/2058-8585/ad70c5","url":null,"abstract":"The demand for flexible printed electronics is growing fast, especially with the move toward the Internet of Things. These printed electrons are usually designed for short-term use, after which they are disposed of. The polymeric substrates used in printed electronics comprise the biggest portion of their non-biodegradable E-waste after their disposal. This paper demonstrates the feasibility of printing fully functional transient electronics on flexible, water-soluble, and biodegradable paper substrates using the dry printing approach. The <italic toggle=\"yes\">in-situ</italic> generation and real-time sintering of silver nanoparticles at room temperature enables the fabrication of complex circuits on such water-soluble papers. A layout similar to an Arduino pro mini board is printed on both sides of a paper substrate with electrical interconnects. Various electrical components are then directly mounted to fabricate a complete, working paper Arduino circuit. Cyclic bending tests demonstrate the mechanical durability and reliability of printed paper circuits under repeated bending stress. The process uniquely achieves robust and complex printed electronics without thermal damage, and the water solubility tests successfully show rapid dissolution of the paper devices in water. Furthermore, the components detached during dissolution are collected and reused, demonstrating the recyclability of the process. Overall, this transformative manufacturing method establishes key technical capabilities to produce next-generation sustainable, green electronics and sensors using renewable materials.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"9 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142188686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flexible intracortical probes for stable neural recording: from the perspective of structure 用于稳定神经记录的灵活皮层内探针：从结构的角度看问题

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-08-29 DOI: 10.1088/2058-8585/ad71dc

Suhao Wang, Qianqian Jiang, Jizhou Song

引用次数: 0

End-of-life options for printed electronics in municipal solid waste streams: a review of the challenges, opportunities, and sustainability implications 城市固体废物流中印刷电子产品的报废选择：对挑战、机遇和可持续性影响的审查

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-08-27 DOI: 10.1088/2058-8585/ad699b

Mohammad Naji Nassajfar, Mariam Abdulkareem, Mika Horttanainen

引用次数: 0

Transparent and flexible fish-tail shaped antenna for ultra-wideband MIMO systems 用于超宽带多输入多输出系统的透明柔性鱼尾形天线

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-08-14 DOI: 10.1088/2058-8585/ad6883

Shilin Lian, Haoyuan Sun, Hua Zhang, Dan Zhang, Tian Liu, Zhejun Jin, Yu Zheng

引用次数: 0

Recent advances in encapsulation strategies for flexible transient electronics 柔性瞬态电子封装策略的最新进展

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-08-14 DOI: 10.1088/2058-8585/ad6a6c

Won Bae Han, Suk-Won Hwang, Woon-Hong Yeo

引用次数: 0

Effects of transparent conducting electrodes and hole transport layers on the performance of MAPbI3 solar cells fabricated on PET substrates 透明导电电极和空穴传输层对 PET 基底上制造的 MAPbI3 太阳能电池性能的影响

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-07-09 DOI: 10.1088/2058-8585/ad5d01

Bishal Bhandari, Justin C Bonner, Robert T Piper, Julia W P Hsu

{"title":"Effects of transparent conducting electrodes and hole transport layers on the performance of MAPbI3 solar cells fabricated on PET substrates","authors":"Bishal Bhandari, Justin C Bonner, Robert T Piper, Julia W P Hsu","doi":"10.1088/2058-8585/ad5d01","DOIUrl":"https://doi.org/10.1088/2058-8585/ad5d01","url":null,"abstract":"This study investigates how the performance of perovskite solar cells (PSCs) made on polyethylene terephthalate (PET) substrates depends on transparent conducting electrodes (TCEs) and hole transport layers (HTLs). We fabricated PSCs using commercially available PET/TCEs and compared their performance with PSCs manufactured on Glass/indium tin oxide (ITO) substrates. Poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) with varying levels of acidity and NiO nanoparticles were used as HTLs. The current density-voltage characteristics of PSCs made on PET/TCEs were found to be significantly lower when highly acidic PEDOT:PSS was used as the HTL. However, this was not observed for PSCs made on Glass/ITO. To investigate the interaction between HTL and TCE, atomic force microscopy was carried out after dipping the TCEs in PEDOT:PSS solutions of different acidity. X-ray photoelectron spectroscopy measurements further revealed differences in the chemical composition between ITO film on PET vs. on glass. Our results indicate that the performance of PSCs depends both on the TCE substrates and HTLs, which can be explained by their chemical interaction.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"86 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141566755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flexible self-powered triboelectric nanogenerator sensor for wind speed measurement driven by moving trains 用于移动列车驱动的风速测量的灵活自供电三电纳米发电机传感器

IF 3.1 4区工程技术

Flexible and Printed Electronics Pub Date : 2024-07-09 DOI: 10.1088/2058-8585/ad5c7c

Wentao Dong, Bo Huang, Kaiqi Sheng and Xiao Cheng

{"title":"Flexible self-powered triboelectric nanogenerator sensor for wind speed measurement driven by moving trains","authors":"Wentao Dong, Bo Huang, Kaiqi Sheng and Xiao Cheng","doi":"10.1088/2058-8585/ad5c7c","DOIUrl":"https://doi.org/10.1088/2058-8585/ad5c7c","url":null,"abstract":"Flexible self-powered sensors have been extensively applied to the Internet of Things, structural health monitoring (SHM), and intelligent transportation. It would be more demanding for the power supply to these sensors during the long-term maintenance of the rail transit system. The wind pressure/velocity generated by high-speed trains poses a substantial threat to safety of human, and new sensors without an external power supply should be developed to monitor wind pressure/velocity in the trackside. Flexible self-powered wind triboelectric nanogenerator (W-TENG) sensor with a single-electrode mode based on conductive hydrogel is designed to wind pressure/velocity monitoring without power supply by harvesting wind energy. It is devoted the relationship between the output voltage of the sensors and the wind pressure/velocity driven by high-speed trains. Material selection and structural design methods are adopted to enhance the energy harvesting efficiency and sensing accuracy of self-powered W-TENG sensors. Open-circuit current of 2.8 μA and open-circuit voltage of 12 V are achieved, and the output voltage signal has the linear relationship with trackside wind pressure/velocity. Field tests are implemented to evaluate the performance of self-powered W-TENG sensors in wind pressure/velocity measurement caused by moving trains, providing an idea to SHM application in intelligent transmit systems.","PeriodicalId":51335,"journal":{"name":"Flexible and Printed Electronics","volume":"14 1","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141566754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0