Article
Polymer Science
Jina Jang, Haoyu Zhou, Jungbae Lee, Hakgae Kim, Jung Bin In
Summary: Conductive fibers are produced using droplet-coating and annealing techniques to minimize material waste and thermal damage, resulting in fibers with low resistance. These fibers can be used in force sensors and flexible interconnectors.
Article
Energy & Fuels
Nasim Nourani, Kheibar Dashtian, Mehrorang Ghaedi, Saeed Shahbazi, Shaaker Hajati
Summary: Nanofibrous α-Fe2O3/Na2WO4 composite electrodes exhibit high specific capacitance and cycling stability in electrochemical supercapacitors. Symmetric ESCs constructed with coin-cell architecture demonstrate satisfactory performance in aqueous electrolyte, showing potential for high-performance applications.
Article
Nanoscience & Nanotechnology
Yaya Gao, Lingyao Yu, Yimeng Li, Leqian Wei, Jun Yin, Fujun Wang, Lu Wang, Jifu Mao
Summary: In this study, a stretchable conductive fiber with hierarchical wrinkles was fabricated based on the principles of fractal geometry. The fiber exhibited excellent strain-insensitive conductivity, low hysteresis, and long-term durability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Minghui Sun, Zhuoping Wang, Junwu Xiao, Xin Tian, Xin Ma, Shuai Wang
Summary: Metal boride nanostructures have great potential for hydrogen storage applications. This study successfully synthesized 3-4 nm ultrathin MgB2 nanosheets through mechanochemical exfoliation, which exhibited a hydrogen capacity 50 times larger than bulk MgB2. This finding provides a promising new direction for achieving high-capacity reversible hydrogen storage.
Article
Thermodynamics
Yaqin Wu, Feiyue Wang, Zhupu Fan, Zihang Wang, Wenying Yang, Wenqin Ju, Weixin Lei, Youlan Zou, Zengsheng Ma
Summary: In this paper, an internally enhanced high strength conductive three-dimensional (3D) biochar framework composite of high porosity biochar and carbon nanotube (HPBC/CNTs) is synthesized to improve the cyclic stability and electrochemical performances of the cathode material in lithium-sulfur batteries (LSBs).
Article
Materials Science, Ceramics
Tzu-Kang Chin, Ming-Wei Liao, Tsong-Pyng Perng
Summary: A new hierarchical fiber structure composed of TiOxN1-x and TiN@nitrogen-doped carbon hollow fibers was formed by direct nitridation of a TiO2-coated polysulfone (PSF) hollow fiber. X-ray photoelectron spectrometric and Raman spectroscopic analysis indicated that the nitridation of TiO2 and carbonization of PSF proceeded independently and simultaneously, resulting in highly conductive fibers.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Analytical
Vildan Sanko, Ahmet Senocak, Sureyya Oguz Tumay, Taskin Camurcu, Erhan Demirbas
Summary: A novel enzymatic electrochemical biosensor was designed for the detection of bisphenol A (BPA) with low LOD and good linear range, successfully applied in seawater, canned water, and milk samples. The accuracy of the method was validated through HPLC and spike/recovery test, showing the potential of biopolymer in enzymatic electrochemical biosensors.
Article
Chemistry, Analytical
Xiao Wang, Haoling Huo, Congjie Xu, Huaijun Lin, Qiwei Wang, Junjie Yang, Florian Vogel, Xiaoying Wang, Zhidan Lin, Lin Cao, Wei Li, Peng Zhang
Summary: A glucose-responsive PBA-based biosensor with outstanding mechanical properties, excellent glucose sensitivity, response stability, and wide linearity was successfully synthesized in this study. The biosensor exhibited exceptional electromechanical responsiveness, high sensitivity, and a linear response to glucose concentration from 0.20 mM to 2.0 mM. It also showed satisfactory cyto-compatibility, hemocompatibility, and antibacterial properties. This new material with special structure holds promise as a substitute for non-enzymatic glucose biosensors and can benefit wound management in diabetic patients.
ANALYTICA CHIMICA ACTA
(2023)
Article
Materials Science, Composites
David B. Anthony, Sang N. Nguyen, Hui Qian, Shi Xu, Charles M. D. Shaw, Emile S. Greenhalgh, Alexander Bismarck, Milo S. P. Shaffer
Summary: Hierarchical systems combining structural glass fibers with a bi-continuous silicabased aerogel matrix demonstrate significant improvements in mechanical properties, with up to 27% increases in compressive strength and interlaminar shear strength without any loss in modulus. The bicontinuous network modification strategy uses industrially-relevant infusion techniques and retains a similar final composite density (within 2%). This strategy offers a versatile and readily applicable means to enhance continuous fiber reinforced composite systems in compression and provides an opportunity for the development of new composite materials.
COMPOSITES COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Karel Slamecka, Adelia Kashimbetova, Jaroslav Pokluda, Tomas Zikmund, Jozef Kaiser, Edgar B. Montufar, Ladislav Celko
Summary: This paper investigates the high-cycle fatigue behavior of novel titanium scaffolds with hierarchical porosity and properties comparable to those of human bone. Surprisingly, scaffolds with an open intrastrand pore network outperform those with compact strands in terms of endurance and fatigue strength. The improved fatigue performance is attributed to fatigue crack growth shielding effects, which reduce crack growth rate, prolong crack path, and increase energy absorption. These hierarchically porous titanium structures prepared by direct ink writing can safely serve under cyclic loading conditions and provide multiple open porosity-related functionalities.
MATERIALS & DESIGN
(2023)
Article
Engineering, Electrical & Electronic
Xianchao Yang, Yuhuai Liu, Fang Wang, Ying Lu, Jianquan Yao
Summary: The biosensor, based on a combination of LPG and SNCS fiber structure, demonstrates high sensitivity and the ability to detect different concentrations of Hb solutions. With a simple design, noninvasive detection capability, and label-free detection, the sensor shows great potential for biosensing applications.
IEEE SENSORS JOURNAL
(2021)
Article
Engineering, Chemical
Yankang Deng, Miaomiao Zhu, Tao Lu, Qingwei Fan, Wenjing Ma, Xiaoli Zhang, Long Chen, Huihua Min, Ranhua Xiong, Chaobo Huang
Summary: This study developed a unique granular-convex structure on the surface of fibers through green preparation, providing efficient physical interception and adsorption capabilities for excellent removal of air pollutants with low air resistance. The fiber membrane also exhibited water resistance and mechanical properties, offering a positive strategy for high-performance air filtration.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Jie Hu, Enlai Song, Yuhui Liu, Qiaochu Yang, Junhui Sun, Jinna Chen, Yue Meng, Yanwei Jia, Zhiguang Yu, Yang Ran, Liyang Shao, Perry Ping Shum
Summary: Detection of trace tumor markers in blood/serum is important for cancer screening and prognosis, and label-free optical fiber-based biosensors show promise for Point-of-Care Testing (POCT). A lasso-shaped fiber laser biosensor was developed for the specific determination of CEACAM5 protein in serum, with high sensitivity and reproducibility. The biosensor demonstrated a LOD of 9.6 ng/mL and potential for clinical use, with mass production capability and applicability in broader biosensing fields.
Article
Engineering, Environmental
Jun Wang, Jing Lin, Kelin Pan, Kaibang Zhang, Hebai Zhang, Jin Dong, Dechao Hu, Zhixin Jia, Jianyi Luo
Summary: In this study, a sparse-dense hierarchical structured conductive elastomer composite was synthesized using a one-pot method, which successfully developed a strain sensor with high stretchability, high sensitivity, and wide strain range. The sensor exhibited a wide detection range, fast response time, excellent repeatability, and stability, and was successfully applied in elbow and knee pads for motion monitoring.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Xin Li, Fei Wang, Xue Wang, Wenjie Zhao, Hongyao Liu, Mingxiao Li, Yang Zhao, Lingqian Zhang, Chengjun Huang
Summary: This article introduces a novel plasmonic-photonic hybrid configuration for fiber-optic sensors, which integrates a dielectric coating and dispersed gold nanoparticles onto the fiber tip. This configuration enhances sensing performance and simplifies the fabrication process. By coupling localized surface plasmon resonance with cavity interference mode, a hybrid plasmonic-photonic resonance is successfully excited with enhanced sensitivity, high stability, and precise tunability of resonance frequencies. Experimental results demonstrate real-time monitoring of biomolecular binding interactions at nanomolar concentration, showcasing the potential of this plasmonic-photonic configuration in developing miniaturized high-performance sensing probes.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Multidisciplinary
Hyeongho Min, Sangyul Baik, Jinhyung Kim, Jihyun Lee, Bo-Gyu Bok, Jin Ho Song, Min-Seok Kim, Changhyun Pang
Summary: The study introduces a diving beetle-inspired electro-adhesive patch that offers high reliability and flexibility for real-time diagnostics of the human body. Utilizing nanowire-implanted conductive multiscale architectures, the device provides a skin-adaptable and stretchable interface.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Da Wan Kim, Kang-Il Song, Duhwan Seong, Yeon Soo Lee, Sangyul Baik, Jin Ho Song, Heon Joon Lee, Donghee Son, Changhyun Pang
Summary: Recent studies focus on soft adhesives and their interaction with living tissues to meet the needs of patients with acute or chronic diseases. A synergistic adhesion mechanism involving both electrostatic and mechanical interactions has been successful in achieving residue-free, sustainable in situ tissue adhesion. This mechanism enhances biofluid-insensitive, sustainable adhesion to various soft, slippery organ surfaces and allows for clean detachment in the peeling direction, demonstrating robust tissue adhesion capability.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Jae Seon Baik, Sang A. Kim, Dae-Woong Jung, Weon-Sik Chae, Changhyun Pang, Suk Ho Bhang, Laurent Corte, Gi-Ra Yi
Summary: The adsorption of polymers on the surface of mesoporous silica nanoparticles allows for versatile adhesion between hydrogels or biological tissues. However, when the number of nanoparticles deposited exceeds a critical threshold, thick multilayers form at the interface and decrease the adhesion strength. To overcome this limitation, spherical aggregates were prepared by spray drying, resulting in stronger cohesion between nanoparticles. The adhesion energy with these supraballs was significantly enhanced compared to nanoparticles, and corrugated interfaces stabilized by supraballs contributed to the largest adhesion enhancement.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Seong Soo Yoo, Jeong-Won Ho, Dong-In Shin, Minjun Kim, Sunghwan Hong, Jun Hyuk Lee, Hyeon Jun Jeong, Mun Seok Jeong, Gi-Ra Yi, S. Joon Kwon, Pil J. Yoo
Summary: This study presents the development of an ultrasensitive SERS platform utilizing a two-dimensional assembly of Au NPs conformally coated with a few-atom-thick MXene layer. The MXene layer enables the Fermi level of the substrate to be located between the HOMO and LUMO levels of analytes, thus efficiently facilitating the CT effect.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Da Wan Kim, Hyunseung Kim, Geon-Tae Hwang, Sung Beom Cho, Seung Hwan Jeon, Hyeon Woo Kim, Chang Kyu Jeong, Sungwoo Chun, Changhyun Pang
Summary: Researchers have designed an octopus-inspired pattern that enables a wearable device to have a close contact interface with the human body, resulting in improved energy harvesting efficiency. The pattern achieves stable adhesion to the skin through cohesive forces among liquid molecules, even on wet skin, leading to efficient energy generation.
ACS ENERGY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Dong-In Shin, Seong Soo Yoo, Seong Hun Park, Gaehang Lee, Wan Ki Bae, Seok Joon Kwon, Pil Jin Yoo, Gi-Ra Yi
Summary: Nanophotonics relies on precise control of refractive index, and this study demonstrates a versatile way of tuning refractive index using heteroligand gold nanoparticles that form 2D superstructures at the oil-water interface. These 2D superstructures exhibit the highest-ever refractive index in visible and NIR light, and the plasmonic effects are successfully explained by a percolation model.
ADVANCED MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
You-Jin Kim, Jeong-Bin Moon, Hyerim Hwang, Youn Soo Kim, Gi-Ra Yi
Summary: Significant progress has been made in the synthesis and assembly of patchy colloidal clusters in recent years. These clusters, through a DNA-mediated interlocking process, can form directional bonding with specific rotation angles, and have potential applications in photonic crystals, metamaterials, topological photonic insulators, and separation membranes.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Myung Woo Na, Se Yun Jeong, Yoon-Joo Ko, Dong-Min Kang, Changhyun Pang, Mi-Jeong Ahn, Ki Hyun Kim
Summary: Evodiae Fructus, the fruit of Tetradium ruticarpum, has antibacterial activity against Helicobacter pylori and can be used to treat gastric and duodenal ulcers. Compound 3 (1-methyl-2-(8E)-8-tridecenyl-4(1H)-quinolinone) exhibited the most potent antibacterial activity and showed potential for the development of novel antibiotics against H. pylori.
Article
Chemistry, Physical
Jeong-Bin Moon, Seung-Jea Lee, Seung-Hyun Kim, Yechan Chang, Hyerim Hwang, Gi-Ra Yi
Summary: Monodisperse carbon-embedded rutile TiO2 nanospheres were synthesized through sol-gel reaction and thermal annealing process. The nanospheres showed unique structural colors and high refractive index, which make them useful in fields such as encryption inks and automotive paints.
CHEMISTRY OF MATERIALS
(2022)
Article
Polymer Science
Miaomiao Li, Zhan-Wei Li, Quanqian Lyu, Bolun Peng, Rui Zhong, Meiru Zhao, Bijin Xiong, Gi -Ra Yi, Lianbin Zhang, Jintao Zhu
Summary: This study presents a general strategy for the one-step construction of colloidal photonic composites (CPCs) with tunable structures. By kinetically controlling the supramolecular crosslinking between colloidal particles (CPs) and supramolecular oligomers, CPCs with structures ranging from short-range to long-range order were achieved. The resulting CPCs exhibit structural colors, versatile mechanical strengths, and appealing mechanochromic and self-healing capabilities.
Article
Chemistry, Multidisciplinary
Gui Won Hwang, Heon Joon Lee, Da Wan Kim, Tae-Heon Yang, Changhyun Pang
Summary: This article introduces a highly adaptive soft microstructured switchable adhesion device inspired by the surface characteristics of octopus suckers. It can stably attach to objects with curved, rough, and irregular surfaces and reliably grasp and transport complex objects.
Article
Chemistry, Physical
Yeon Soo Lee, Da Wan Kim, Jin Ho Song, Jinhyung Kim, Seung Hwan Jeon, Gui Won Hwang, Changhyun Pang
Summary: Bioinspired and biodegradable polymer-based adhesive films have gained attention in the medical field due to their stable adhesion performance and ability to decompose in the body. This study presents a bioinspired oil-coated adhesive film fabricated using PGS, which mimics the adhesion properties of a frog's toe pad and mucus on wet surfaces.
SURFACES AND INTERFACES
(2022)
Article
Engineering, Environmental
Yeon Soo Lee, Gyun Ro Kang, Min-Seok Kim, Da Wan Kim, Changhyun Pang
Summary: In this study, a double-layered adhesive patch with an octopus inspired architecture (d-OIA) coated with a soft elastomer was proposed, showing enhanced adhesive performance. The patch demonstrated improved adhesion against dry and rough underwater surfaces in the pulling direction. The soft elastomer coated on the elastic octopus-inspired patterns enabled high adaptability to rough surfaces. The patch maintained a vacuum state on rough skin even during frequent bending and stretching, and it successfully detected electrocardiograms (ECG) and electromyograms (EMG) signals in dry and sweaty conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Plant Sciences
Se Yun Jeong, Akida Alishir, Shuxiang Zhang, Yinglao Zhang, Sohyeong Choi, Changhyun Pang, Han Yong Bae, Won Hee Jung, Ki Hyun Kim
Summary: Actinomycetes S. neopeptinius BYF101 was isolated from the body surface of the termite and 20 metabolites were identified, including previously unreported obscurolide-type metabolites. The study also discovered a compound with antifungal activity.
JOURNAL OF NATURAL PRODUCTS
(2023)
