ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Yuyan Gao,Bowen Li,Ling Zhang,Xianzhe Zhang,Xin Xin,Senpei Xie,Ryan Allen Lee,Kang Li,Weiwei Zhao,Huanyu Cheng
Capable of directly capturing various physiological signals from human skin, skin-interfaced bioelectronics has emerged as a promising option for human health monitoring. However, the accuracy and reliability of the measured signals can be greatly affected by body movements or skin deformations (e.g., stretching, wrinkling, and compression). This study presents an ultraconformal, motion artifact-free, and multifunctional skin bioelectronic sensing platform fabricated by a simple and user-friendly laser patterning approach for sensing high-quality human physiological data. The highly conductive membrane based on the room-temperature coalesced Ag/Cu@Cu core–shell nanoparticles in a mixed solution of polymers can partially dissolve and locally deform in the presence of water to form conformal contact with the skin. The resulting sensors to capture improved electrophysiological signals upon various skin deformations and other biophysical signals provide an effective means to monitor health conditions and create human-machine interfaces. The highly conductive and stretchable membrane can also be used as interconnects to connect commercial off-the-shelf chips to allow extended functionalities, and the proof-of-concept demonstration is highlighted in an integrated pulse oximeter. The easy-to-remove feature of the resulting device with water further allows the device to be applied on delicate skin, such as the infant and elderly.
研究领域:
生物医学工程
·
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Yaqiang Li,Chengzhi Li,Ruopeng Li,Xuesong Peng,Jinqiu Zhang,Peixia Yang,Guangzhao Wang,Bo Wang,Peter Broekmann,Maozhong An
A novel chlorinated functional group-modified triphenylmethane derivative leveler BB1 is used to achieve superconformal electrodeposition in microvias. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) are performed to study the suppressing effect of BB1, while the convection-dependent adsorption of BB1 on the copper surface is analyzed by galvanostatic measurement, and a BB1 concentration window between 100 and 200 mg/L is beneficial for superfilling. The interactions among BB1, bis-(sodium sulfopropyl) disulfide (SPS), and poly(ethylene glycol) (PEG) are also investigated. Density functional theory (DFT) calculation and in situ Raman spectroscopy are coupled to study the suppression mechanism and synergistic suppression mechanism, namely, the adsorption effect between BB1 and copper substrate, as well as the coordination effect between the modified chlorinated functional group and Cu2+, is proposed. The copper layer becomes smoother and more compact with an increase in BB1 concentration, according to scanning electron microscopy (SEM) and atomic force microscopy (AFM), while X-ray diffraction (XRD) analysis shows that the introduction of BB1 is conducive to the formation of the copper (220) plane. Besides, the solution wettability is boosted by BB1. A copper interconnecting layer with high quality is achieved with 150 mg/L BB1, while the surface deposition thickness (SDT) is about 34 μm and filling percentages (FPs) for microvias with diameters of 100, 125, and 150 μm are 81.34, 82.72, and 81.39%, respectively.
研究领域:
材料科学
·
电化学
·
表面科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2023
·
IF 4.5
Yaqiang Li,Xiaochuan Ma,Ruopeng Li,Jinqiu Zhang,Peixia Yang,Anmin Liu,Bo Wang,Peter Broekmann,Maozhong An
Achieving cobalt superconformal (bottom-up) growth is significantly important. Electrochemical methods, including cyclic voltammetry, electrochemical impedance spectra and EQCM-derived Coulomb-voltage curves, were used to confirm the suppressing influence of new suppressor Nitrotetrazolium Blue chloride (NBT). In situ Raman spectroscopy was used confirm that NBT can effectively adsorb on cobalt surface. Besides, EQCM-derived Coulomb-voltage illustrates that it is more beneficial for cobalt electrodeposition at high pH. The NBT effect on hydrogen evolution reaction (HER) was studied by LSV and chronoamperometry. Finite element simulation is used to investigate the accelerating effect of NBT on HER and convection. Suppressing-accelerating effect is proposed to illustrate effect of NBT. NBT can not only suppress the cobalt deposition but also can accelerate local convection by intensifying HER, which can in turn strengthen NBT adsorption. SEM analysis demonstrates that convection and NBT can refine grain. High-quality cobalt is achieved with low SDT values ranging from 24 μm to 45 μm and high FP values (75.4 % for 150 μm, 88.9 % for 100 μm and 87.2 % for 50 μm).
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
·
2022
·
IF 6.76
Yaqiang Li,Penghui Ren,Yuanhang Zhang,Shengxu Wang,Jinqiu Zhang,Peixia Yang,Anmin Liu,Guangzhao Wang,Zhidong Chen,Maozhong An
Finding proper additive to achieve copper superconformal electrodeposition is significantly important. Brilliant Green exhibits excellent suppressing ability to the copper electrodeposition according to electrochemical analysis. Meanwhile, 100 mg/L was selected as the optimum value based on the convection-dependent adsorption behavior analysis of Brilliant Green. The interaction among three different additives was also investigated by applying chronopotentiometry as well as Brilliant Green compete to absorb on the cathode surface with SPS. Besides, the introduction of Brilliant Green can improve the transport of cupric ions (Cu 2+ ). The nucleation and growth of copper deposition is 3D diffusion-controlled instantaneous growth process at high overpotential but 3D diffusion-controlled mixing growth process at low overpotential. The synergistic suppressing mechanism was proposed to explain strong suppressing effect of BG on reduction of Cu 2+ and the reaction pathways was studied theoretically. Copper interconnect layer with high FP values (80.52 % to 84.38 %) was obtained with low SDT (about 28 μm) after electroplating process was optimized. The surface morphology under the influence of Brilliant Green is compact and uniform and the grain size is reduced by Brilliant Green.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Colloids and Interfaces
·
2025
·Vol. 9
·期 5
·62
·
IF 3.2
Tao Song,Jun-Yi Wang,Jiang-Peng Qiu,Jia-Qiang Yang,Zhao-Yun Wang,Yi Zhao,Xiao-Hui Yang,Ren Hu,Jun Cheng,Fang-Zu Yang,Lian-Huan Han,Dong-Ping Zhan
Developing a highly efficient leveler in acid copper electroplating solution is one of the primary tasks necessary for achieving superconformal filling of microvias and interconnections in printed circuit boards (PCBs). Two triethylenediamine-based Gemini levelers, both with terminal quaternary ammonium groups, are synthesized and named as GL1(C8) after reaction of triethylenediamine with 1,8-dichlorooctane and GL2(C6 with two C–O linkages) after triethylenediamine with 1,2-bis(2-chloroethoxy) ethane. Electrochemical experiments indicate that at 100 rpm and 1000 rpm GL2combines with a suppressor and accelerator to exhibit greater potential difference of 23 mV than GL1in 9 mV for Cu2+reduction, demonstrating that GL2has a stronger synergistic convection-dependent adsorption (CDA) effect. Microvias copper electroplating experiments confirm that acid copper electroplating solution containing GL2achieve more effective superconformal void-free filling as it results in FP = 96.1%, while the solution containing GL1results in FP = 70%. Theoretical calculations indicate that adsorption energy of GL2is −1037.54 kJ·mol−1, which is lower than GL1(−1019.06 kJ·mol−1). GL2displays lower electron density compared to GL1, which facilitates its displacement by accelerator at the bottom. The lower adsorption energy of GL2suggests the weaker adsorption ability and the stronger CDA behavior.
研究领域:
材料科学
·
电化学
·
半导体制造
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Enhao Liu,Yibo Zhu,Shengyong Gao,Junping Hu,Wei Feng,Jisheng Zhou
Achieving superconformal deposition of metallic sodium on 3D matrices is a critical challenge for sodium metal batteries (SMBs). Herein, flexible 3D carbon nanofiber films anchored with axial O-coordinated CuN 4 O 2 single-atom sites (CuN 4 O 2 -CNF) by a ZnCl 2 -mediated thermal activation strategy is designed. Unlike conventional planar CuN 3 configurations obtained without ZnCl 2 , the axial O in CuN 4 O 2 sites exhibits a high density of states near the Fermi level, modulating the electronic structure of neighboring Cu and N. This lowers Na + adsorption energy, accelerates charge transfer and enhances electrolyte permeability, enabling superconformal sodium deposition. As a result, the CuN 4 O 2 -CNF achieves an ultra-low nucleation overpotential of 10 mV, a coulombic efficiency of 99.92% over 8,000 h, and exceptional cycling stability exceeding 10,000 h in symmetric cells. The full coin cells paired with a Na 3 V 2 (PO 4 ) 3 cathode retain 89.5 mA h g −1 after 1,000 cycles at 1 A g −1 and deliver 80.3 mA h g −1 at 5 A g −1 , demonstrating superior rate capability. The pouch cells also maintain a stable capacity of 75.8 mA h g −1 after 150 cycles at 58.5 mA g −1 . These results highlight the transformative potential of axial-coordination for designing high-performance metal batteries, offering insights into interfacial dynamics and host architectures for next-generation energy-storage systems.
研究领域:
储能与转换
·
材料科学
·
电化学
·
纳米材料
·
电池技术
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·Vol. 35
·期 23
·2422980
·
IF 19
Chengjun Wang,Weijie Hong,Yidong Deng,Lingyi Lan,Shun Zhang,Jianfeng Ping,Yibin Ying,Cunjiang Yu,Jikui Luo,Weiqiu Chen,Zuobing Chen,Jizhou Song
Thumb actions, outperforming conventional methods such as hand gestures or wrist gestures in terms of dexterity, agility and intuitiveness, have long been sought-after for achieving immersive interactive experiences in robotic control and AR/VR platforms. However, accurate mapping of such dynamic, subtle thumb actions remains a difficult challenging. Here, a wireless, wrist-affixed soft ultra-conformal neuromuscular interface system (UniSyst) is reported to capture high-fidelity surface electromyography crucial for decoding dynamic subtle thumb actions. The UniSyst, which can be easily fabricated at scale and in mass quantities, features a 16-channel soft, stretchable sensing array for broad, high-resolution data capture and a stiff design for plug-and-play interface with external rigid wireless acquisition module. This soft-stiff design ensures consistent electrode-skin contact under substantial skin deformations, thus avoiding undesired motion artifacts commonly observed with rigid alternatives. Facilitated with a lightweight 1D convolution neural network deep learning classifier, this system shows remarkable recognition accuracy over that of traditional forearm placements, fairly compared through concurrently collected signals from the wrist and the forearm of 12 participants. In practical scenarios, the soft UniSyst exhibits rapid, precise thumb-controlled interactive capabilities, adeptly managing human–machine communications in both digital platforms and immersive gaming controls.
研究领域:
可穿戴电子
·
人机交互
·
生物医学工程
·
神经接口
·
人工智能
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）