Article
Materials Science, Multidisciplinary
Ji Qian, Qiongyu Chen, Min Hong, Weiqi Xie, Shuangshuang Jing, Yinhua Bao, Gang Chen, Zhenqian Pang, Liangbing Hu, Teng Li
Summary: The demand for stretchable batteries is increasing with the emergence of wearable and epidermal electronics. However, the development of stretchable batteries is a major challenge due to the brittle nature of battery components. This study presents a simple and effective strategy to fabricate stretchable electrodes and separator for Li-ion batteries using 3D printing technology. The resulting components exhibit 50% reversible stretchability and excellent mechanical and electrical performance.
Article
Polymer Science
Pengpeng Hu, Fabio Beco Albuquerque, Jeppe Madsen, Anne Ladegaard Skov
Summary: In this study, a highly stretchable silicone elastomer is introduced into dielectric elastomer actuators (DEAs) to lower operation voltages through high prestretches. The fabricated DEAs show significant strain changes over time due to the viscous component of the silicone elastomer. The results suggest that these DEAs have promise for applications that do not require fast response speeds.
MACROMOLECULAR RAPID COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Lingyun Wang, Yu Wang, Su Yang, Xiaoming Tao, Yunlong Zi, Walid A. Daoud
Summary: This study introduces a solvent-free ionic elastomer (IE) with high transparency, stretchability, ionic conductivity, adhesiveness, thermal stability, and negligible mechanical hysteresis, suitable for multifunctional stretchable electronics. The IE-based robust strain and temperature sensors demonstrate good linear sensitivity and long-term stability.
Review
Nanoscience & Nanotechnology
Hai-Tao Deng, Dan-Liang Wen, Tao Feng, Yi-Lin Wang, Xin-Ran Zhang, Peng Huang, Xiao-Sheng Zhang
Summary: Wearable electronics play an important role in the Internet of Things, and efforts have been made to overcome the limitations of traditional functional materials by using composite engineering to develop stretchable electronics with different functions. This article focuses on silicone rubber-based conductive composites, including their conductivity mechanisms, synthesis methods, and applications.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Fulvia Del Duca, Lukas Hiendlmeier, Reem Al Fata, George Al Boustani, Inola Kopic, Hu Peng, Beatrice De Chiara, Marta Nikic, Francisco Zurita, Tetsuhiko Teshima, Bernhard Wolfrum
Summary: This work presents the fabrication of stretchable origami parylene-C electrodes using 3D printed molds. By 3D printing the molds, the designed stretchability directions of the electrodes can be fully controlled. This technique enables the production of electrodes with specific stretchability directions in a rapid prototyping approach.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Hai-Tao Deng, Dan-Liang Wen, Jing-Rui Liu, Xin-Ran Zhang, Yi-Lin Wang, Peng Huang, Beomjoon Kim, Xiao-Sheng Zhang
Summary: Wearable sensors are important in modern society, especially in the fields of electronic skin, robotics, prosthetics, and healthcare. A stretchable multifunctional sensor was developed based on porous silver nanowire/silicone rubber conductive film, which can sense pressure, temperature, and friction. This sensor successfully achieved the monitoring of multiple variables of the human body and environment.
Article
Engineering, Biomedical
Xin Zhou, Ashna Rajeev, Arunprabaharan Subramanian, Yang Li, Nicolo Rossetti, Giovanniantonio Natale, Gregory A. A. Lodygensky, Fabio Cicoira
Summary: In this study, self-healing, stretchable, highly adhesive and conductive hydrogels were developed for bioelectronics and wearable electronics applications. These hydrogels exhibited high adhesion, good stretchability, moderate conductivity, and remarkable self-healing properties. They were successfully used to fabricate high-quality electrode for recording electrocardiography and electromyography signals.
ACTA BIOMATERIALIA
(2022)
Article
Chemistry, Multidisciplinary
Zixuan Zhou, Weizhong Yuan, Xiaoyun Xie
Summary: This study developed a composite hydrogel with excellent flexibility and electrical conductivity, which can adhere to various substrates. The hydrogel also has excellent electromagnetic shielding effect and can detect human motion signals and express sign language through electrical signals. Additionally, the hydrogel can act as a flexible triboelectric nanogenerator for energy harvesting.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Sekar Praveen, Taehyung Kim, Soon Phil Jung, Chang Woo Lee
Summary: Stretchable energy storage devices have been receiving significant attention, especially for powering wearable electronics. This study reports on the fabrication of stretchable electrode substrates using 3D printing technology, which show promising potential as electrodes for Li-ion batteries with stable electrochemical performance under mechanical deformations. This work provides a feasible route for constructing high stretchability LIBs with enhanced electrochemical performance, offering a platform for next generation wearable electronics.
Article
Polymer Science
Zhongming Lv, Wentao Hao, Feiyun Xiao, Pin Chen, Zhengshi Liu, Yong Wang
Summary: Soft actuators are important for soft robotics, and particle reinforcement can improve their performance. This study investigates soft pneumatic actuators made of silicone rubber with embedded ultrahigh molecular weight polyethylene particles through experiments and simulations.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Ricardo Correia, Jonas Deuermeier, Maria Rosario Correia, Joana Vaz Pinto, Joao Coelho, Elvira Fortunato, Rodrigo Martins
Summary: This work presents a systematic study on the formation of laser-induced graphene (LIG) using CO2 infrared laser on parylene-C ultrathin membranes. The resulting LIG exhibits excellent electrochemical behavior and cycling stability when used as electrode material for ultrathin microsupercapacitors (MSCs). This research expands the knowledge on LIG processes and highlights the potential of parylene-C as a key material for flexible electronic devices.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Polymer Science
Yu Zeng, Neng Zhou, Chenhan Xiong, Zhiyong Huang, Guoping Du, Zhaoyang Fan, Nan Chen
Summary: This study synthesized nanocomposites with excellent mechanical and magnetic properties by dispersing fumed silica and oleic acid-modified Fe3O4 nanoparticles in a silicone rubber matrix. The nanocomposites exhibited outstanding thermal stability, superelasticity, superparamagnetic property, and sensitive magnetic response.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Jin Huang, Lei Cao, Cheng-Yuan Xue, Yu-Zhe Zhou, Yu-Chun Cai, Hao-Yu Zhao, Ye-Han Xing, Shu-Hong Yu
Summary: A super soft, highly stretchable, and underwater adhesive silicone conductive elastomer composite was fabricated by incorporating dimethyl silicone oil as a lubricating agent in a cross-linked molecular network. The resulting material exhibits excellent softness and fast recovery from large deformations.
Article
Biotechnology & Applied Microbiology
Andrea Spanu, Antonello Mascia, Giulia Baldazzi, Benji Fenech-Salerno, Felice Torrisi, Graziana Viola, Annalisa Bonfiglio, Piero Cosseddu, Danilo Pani
Summary: A breathable tattoo electrode based on Parylene C nanofilm is proposed for bio-potential recording, showing comparable performance to conventional disposable gelled Ag/AgCl electrodes in electrocardiography measurements with no visible negative effects on the skin. This introduces interesting perspectives in the field of epidermal electronics, particularly in applications involving critical on-body measurements.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Sehyun Park, Seunghyeb Ban, Nathan Zavanelli, Andrew E. Bunn, Shinjae Kwon, Hyo-ryoung Lim, Woon-Hong Yeo, Jong-Hoon Kim
Summary: Recent advances in soft materials and nano-microfabrication have made it possible to develop flexible wearable electronics. Printing technologies have shown efficiency and compatibility with polymeric materials for manufacturing wearable electronics. In this study, fully screen-printable, skin-conformal electrodes were presented for low-cost and scalable manufacturing of wearable electronics. The screen printing process enables easy, cost-effective, and high-throughput manufacturing, while the ink used for the conductive layer printing allows for natural deformation under stretching and bending conditions. Real-time wireless electrocardiogram monitoring was successfully demonstrated using the printed electrodes, with an algorithm developed for accurate heart rate and respiratory rate calculations, as well as arrhythmia detection.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Chemical
Lingtao Zhu, Jingfeng He, Xin Zhang, Bin Yang, Hao Chen, Linghua Chen, Yake Yao
Summary: The influence of fine particles on the separation of waste printed circuit boards by vibrated fluidized bed was investigated in this study. The results showed that an increase in fine particles significantly reduced the metal recovery. The stability of the bed and the separation performance were negatively affected by the adhesion behavior of fine particles. However, pre-removal of iron and aluminum proved to be effective in improving the separation performance and increasing the metal recovery.
ADVANCED POWDER TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Bin Yang, Hao Peng, Yun Zhang, Xunzhong Shang, Taosheng Zhou, Jinming Guo
Summary: By employing Li substitution and Al2O3 doping, the thermal stability and depolarization temperature of (K,Na)NbO3 (KNN) piezoelectric ceramics are enhanced, resulting in large piezoelectric responses for potential applications in high temperature environments.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Engineering, Chemical
Yake Yao, Jingfeng He, Bin Yang, Yuemin Zhao, Lingtao Zhu
Summary: The study investigates the particle characteristics and metal distribution during the fine crushing of waste PCBs using a shear crusher. The results show that better crushing efficiency is achieved with a feeding concentration of 183 g/L and crushing time of 60s. The coarse and fine particles of waste PCBs have higher circularity and smaller aspect ratio compared to medium-size particles. The main metal elements are distributed in waste PCBs with different particle sizes, and the total metal content in the coarse crushed products is higher than that in the fine crushed products.
Review
Energy & Fuels
Jingfeng He, Shibo Huang, Hao Chen, Lingtao Zhu, Chengjing Guo, Xin He, Bin Yang
Summary: Triboelectric separation technology has been widely used in resource recovery, particularly in coal cleaning, mineral separation, and secondary resource recycling. This review systematically summarizes the research progress of triboelectric separation in mineral processing, including particle pretreatment, charged process intensification, separation process intensification, and its application in coal and mineral separation. Effective strategies and new explorations are proposed for the challenges and problems faced by efficient triboelectric separation. This review provides detailed information for the research status of triboelectric separation and offers vital insights for further improvement and development of efficient triboelectric separation technology.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Article
Energy & Fuels
Jingfeng He, Qingyao Yao, Mingming Zhang, Bin Yang, Lingtao Zhu, Hao Chen, Xin Zhang
Summary: The integration of drying and separation for lignite was achieved by introducing hot airflow and impeller into the gas-solid fluidized bed. The study provides guidance for efficient beneficiation of lignite resources with high moisture content.
Article
Chemistry, Physical
Xiufeng Gong, Jin Yao, Bin Yang, Jun Guo, Haoran Sun, Wanzhong Yin
Summary: This study focused on the basic research of flotation separation of dolomite from brucite using guar gum (GG) as a selective regulator. The flotation tests showed that the use of GG inhibited the floating of dolomite but did not affect the floatability of brucite. Contact-angle measurements and zeta-potential measurements confirmed the difference in floatability between dolomite and brucite after the action of GG. Infrared-spectrum analysis and X-ray photoelectron spectroscopy detection provided further evidence of the interaction between GG and the mineral surfaces.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Xiufeng Gong, Jin Yao, Bin Yang, Zhanglei Zhu, Jun Guo, Wanzhong Yin, Yafeng Fu, Yulian Wang
Summary: This study investigated the selective inhibition characteristics and mechanism of the environmentally friendly and highly effective inhibitor, sodium alginate (SA), on dolomite in the flotation separation of brucite and dolomite. The results showed that an SA dosage of 8 mg/L could achieve a 77.92% difference in floatability between brucite and dolomite, and the flotation effect was verified using the selectivity index.
SEPARATION SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Seunghwan Kim, Yong Suk Oh, Kwanghyoung Lee, Seongchan Kim, Woo-Youl Maeng, Kyung Su Kim, Ga-Been Kim, Seokjoo Cho, Hyeonseok Han, Hyunwoo Park, Mengqiu Wang, Raudel Avila, Zhaoqian Xie, Kabseok Ko, Jungrak Choi, Minkyu Je, Hyojin Lee, Sungho Lee, Jahyun Koo, Inkyu Park
Summary: A battery-free, wireless, cuff-type, implantable, multimodal physical sensing platform is introduced for continuous in vivo monitoring of temperature and strain from peripheral nerve injuries. The system enables power harvesting and data communication to multiple implanted devices wrapped around the nerve.
Article
Chemistry, Multidisciplinary
Chi Zhang, Mengxi Wu, Shuye Cao, Mengjing Liu, Di Guo, Zhan Kang, Ming Li, Dong Ye, Zhuoqing Yang, Xuewen Wang, Zhaoqian Xie, Junshan Liu
Summary: A robust and highly sensitive multifunctional electronic skin has been developed, inspired by the crack-shaped sensory organs of spiders. The device uses a polyimide-based metal crack-localization strategy, resulting in excellent environmental adaptability. The cracked part serves as an ultrasensitive strain sensing unit, while the non-cracked serpentine part is responsible for temperature. The device is the first of its kind that can be used in harsh environments, making it highly promising for human-machine interfaces and intelligent machine applications.
Article
Chemistry, Multidisciplinary
Xiaoguang Hu, Mengxi Wu, Lixuan Che, Jian Huang, Haoran Li, Zehan Liu, Ming Li, Dong Ye, Zhuoqing Yang, Xuewen Wang, Zhaoqian Xie, Junshan Liu
Summary: Flexible pressure sensors are becoming increasingly important in various applications such as human health monitoring, soft robotics, and human-machine interfaces. A conventional approach to achieving high sensitivity is by introducing microstructures to engineer the sensor's internal geometry. However, this strategy results in a thicker sensor which impairs conformability on surfaces with microscale roughness. In this manuscript, a nanoengineering strategy is introduced to resolve the conflicts between sensitivity and conformability, resulting in the thinnest resistive pressure sensor with superior sensitivity and conformability.
Article
Chemistry, Multidisciplinary
Xiufeng Gong, Jin Yao, Bin Yang, Yafeng Fu, Yulian Wang, Wanzhong Yin
Summary: This study investigates the selective adsorption of (1-hydroxyethylidene) bis-phosphonic acid tetrasodium salt (HEDP-4Na) on a calcite surface and its impact on brucite separation. The results show that HEDP-4Na selectively inhibits calcite, achieving a single-mineral floating difference of 73.79% between brucite and calcite. It is found that HEDP-4Na significantly reduces the contact angle of calcite in the sodium dodecyl sulfonate (SDS) system but has little effect on the contact angle of brucite. The adsorption of HEDP-4Na interferes with SDS adsorption on the calcite surface, while it has little effect on SDS adsorption on the brucite surface.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Metallurgy & Metallurgical Engineering
Keqiang Chen, Wanzhong Yin, Yazhuo Ding, Yang Yang, Weiran Zuo, Bin Yang
Summary: More efficient liberation of valuable minerals from gangue is highly beneficial to the comminution process and downstream beneficiation processes. However, the impact of particle-bed breakage on liberation compared to traditional grinding remains controversial. This study compared the liberation performance of iron oxide minerals using two different breakage methods (particle-bed breakage and ball mill grinding). The results showed that particle-bed breakage only slightly improved the liberation of iron oxide minerals, with a maximum difference of 5% in the proportion of liberated minerals. Overall, the difference in liberation distribution between the two breakage methods was not statistically significant in most size/composition classes.
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW
(2023)
Article
Metallurgy & Metallurgical Engineering
Xiu-feng Gong, Jin Yao, Bin Yang, Wan-zhong Yin, Ya-feng Fu, Yu-lian Wang
Summary: In this study, flotation separation of dolomite and brucite was achieved using TH as the inhibitor. The selective adsorption of TH increased the wettability and charge of dolomite, interfering with SDS adsorption and enhancing the flotation separation of dolomite and brucite.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Engineering, Environmental
Xiufeng Gong, Jin Yao, Bin Yang, Wanzhong Yin, Jun Guo, Ningbo Song, Yulian Wang, Haoran Sun
Summary: In this study, we used diammonium hydrogen phosphate (DHP) to regulate the flotation separation of brucite and calcite. DHP was found to have activation and inhibition effects on calcite and brucite flotation, respectively, resulting in a significant recovery difference between the two minerals. Further analysis showed that DHP affects the contact angle and zeta potential of calcite and brucite surfaces, leading to differences in their floatability. In addition, infrared and X-ray photoelectron spectroscopy tests revealed the adsorption behavior of DHP on the mineral surfaces, confirming its stronger affinity for calcite than brucite.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Huimin Qiao, Fangping Zhuo, Zhen Liu, Jinxing Wang, Jeongdae Seo, Chenxi Wang, Jinho Kang, Bin Yang, Yunseok Kim
Summary: This study utilizes piezoresponse force microscopy (PFM) to investigate the local electromechanical behavior and distribution of ferrielectric (FiE) and antiferroelectric (AFE) phases in materials. The results demonstrate the significance of PFM as an analytical tool for characterizing materials and their phase coexistence behavior.