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https://www.readbyqxmd.com/read/28534410/a-facile-methodology-for-the-development-of-printable-and-flexible-all-solid-state-rechargeable-battery
#1
Bibekananda De, Amit Yadav, Salman Khan, Kamal K Kar
Development of the printable and flexible energy storage device is one of the most promising technologies for wearable electronics in textile industry. The present work design a printable and flexible all solid state rechargeable battery for wearable electronic in textile application. Copper coated carbon fiber is used to make polyethylene oxide (PEO) based polymer nanocomposite for flexible and conductive current collector layer. Lithium iron phosphate (LiFePO4) and titanium dioxide (TiO2) are utilized to prepare cathode and anode layer, respectively with PEO and carbon black composites...
May 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28530091/3d-bioprinting-of-highly-thixotropic-alginate-methylcellulose-hydrogel-with-strong-interface-bonding
#2
Huijun Li, Yu Jun Tan, Kah Fai Leong, Lin Li
A robust alginate/methylcellulose (Alg/MC) blend hydrogel, with a strategy to improve adhesion between printed layers, has been fabricated for the first time for 3D bioprinting. The optimized Alg/MC blend hydrogel exhibits highly thixotropic property, great extrudability and stackability. With treatment by a trisodium citrate (TSC) solution, the interfacial bonding between printed layers is significantly improved. The TSC solution acts as a chelating agent to remove the superficial calcium ions at each layer...
May 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28508062/resonant-laser-printing-of-structural-colors-on-high-index-dielectric-metasurfaces
#3
Xiaolong Zhu, Wei Yan, Uriel Levy, N Asger Mortensen, Anders Kristensen
Man-made structural colors, which originate from resonant interactions between visible light and manufactured nanostructures, are emerging as a solution for ink-free color printing. We show that non-iridescent structural colors can be conveniently produced by nanostructures made from high-index dielectric materials. Compared to plasmonic analogs, color surfaces with high-index dielectrics, such as germanium (Ge), have a lower reflectance, yielding a superior color contrast. Taking advantage of band-to-band absorption in Ge, we laser-postprocess Ge color metasurfaces with morphology-dependent resonances...
May 2017: Science Advances
https://www.readbyqxmd.com/read/28466957/a-solution-processed-ultrafast-optical-switch-based-on-a-nanostructured-epsilon-near-zero-medium
#4
Qiangbing Guo, Yudong Cui, Yunhua Yao, Yuting Ye, Yue Yang, Xueming Liu, Shian Zhang, Xiaofeng Liu, Jianrong Qiu, Hideo Hosono
All the optical properties of materials are derived from dielectric function. In spectral region where the dielectric permittivity approaches zero, known as epsilon-near-zero (ENZ) region, the propagating light within the material attains a very high phase velocity, and meanwhile the material exhibits strong optical nonlinearity. The interplay between the linear and nonlinear optical response in these materials thus offers unprecedented pathways for all-optical control and device design. Here the authors demonstrate ultrafast all-optical modulation based on a typical ENZ material of indium tin oxide (ITO) nanocrystals (NCs), accessed by a wet-chemistry route...
May 3, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28426040/enhancement-of-the-hole-conducting-effect-of-nio-by-a-n2-blow-drying-method-in-printable-perovskite-solar-cells-with-low-temperature-carbon-as-the-counter-electrode
#5
T A Nirmal Peiris, Ajay K Baranwal, Hiroyuki Kanda, Shota Fukumoto, Shusaku Kanaya, Ludmila Cojocaru, Takeru Bessho, Tsutomu Miyasaka, Hiroshi Segawa, Seigo Ito
In this article, we demonstrate for the first time a mesoscopic printable perovskite solar cell (PSC) using NiO as the hole transporting material and low-temperature processed carbon as the counter electrode. A single deposition method assisted by N2 blow drying was used for the deposition of MAPbI3 on a TiO2/ZrO2/NiO screen-printed electrode. As the final step a low-temperature processing (i.e. 75 °C) carbon counter layer was fabricated on MAPbI3 by a blade coating method. It is found that the capping layer thickness of MAPbI3 has a significant effect on the device efficiency, especially when NiO is introduced as a hole transporting material into the structure...
May 4, 2017: Nanoscale
https://www.readbyqxmd.com/read/28417631/inkjet-printed-quantum-dot-light-emitting-diodes-with-an-air-stable-hole-transport-material
#6
Zhenhua Xing, Jinyong Zhuang, Changting Wei, Dongyu Zhang, Zhongzhi Xie, Xiaoping Xu, Shunjun Ji, Jianxin Tang, Wenming Su, Zheng Cui
High-efficiency quantum dot light-emitting diodes (QLEDs) were fabricated using inkjet printing with a novel cross-linkable hole transport material N,N'-(9,9'-spirobi[fluorene]-2,7-diylbis[4,1-phenylene])bis(N-phenyl-4'-vinyl-[1,1'-biphenyl]-4-amine) (SDTF). The cross-linked SDTF film has excellent solvent resistance, high thermal stability, and the highest occupied molecular orbital (HOMO) level of -5.54 eV. The inkjet-printed SDTF film is very smooth and uniform, with roughness as low as 0.37 nm, which is comparable with that of the spin-coated film (0...
May 2, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28387118/organic-inorganic-copper-ii-based-material-a-low-toxic-highly-stable-light-absorber-for-photovoltaic-application
#7
Xiaolei Li, Xiangli Zhong, Yue Hu, Bochao Li, Yusong Sheng, Yang Zhang, Chao Weng, Ming Feng, Hongwei Han, Jinbin Wang
Lead halide perovskite solar cells have recently emerged as a very promising photovoltaic technology due to their excellent power conversion efficiencies; however, the toxicity of lead and the poor stability of perovskite materials remain two main challenges that need to be addressed. Here, for the first time, we report a lead-free, highly stable C6H4NH2CuBr2I compound. The C6H4NH2CuBr2I films exhibit extraordinary hydrophobic behavior with a contact angle of ∼90°, and their X-ray diffraction patterns remain unchanged even after 4 h of water immersion...
April 20, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28353680/a-self-sustained-wireless-multi-sensor-platform-integrated-with-printable-organic-sensors-for-indoor-environmental-monitoring
#8
Chun-Chang Wu, Wen-Yu Chuang, Ching-Da Wu, Yu-Cheng Su, Yung-Yang Huang, Yang-Jing Huang, Sheng-Yu Peng, Shih-An Yu, Chih-Ting Lin, Shey-Shi Lu
A self-sustained multi-sensor platform for indoor environmental monitoring is proposed in this paper. To reduce the cost and power consumption of the sensing platform, in the developed platform, organic materials of PEDOT:PSS and PEDOT:PSS/EB-PANI are used as the sensing films for humidity and CO₂ detection, respectively. Different from traditional gas sensors, these organic sensing films can operate at room temperature without heating processes or infrared transceivers so that the power consumption of the developed humidity and the CO₂ sensors can be as low as 10 μW and 5 μW, respectively...
March 29, 2017: Sensors
https://www.readbyqxmd.com/read/28327533/flexible-piezoresistive-sensors-embedded-in-3d-printed-tires
#9
Md Omar Faruk Emon, Jae-Won Choi
In this article, we report the development of a flexible, 3D printable piezoresistive pressure sensor capable of measuring force and detecting the location of the force. The multilayer sensor comprises of an ionic liquid-based piezoresistive intermediate layer in between carbon nanotube (CNT)-based stretchable electrodes. A sensor containing an array of different sensing units was embedded on the inner liner surface of a 3D printed tire to provide with force information at different points of contact between the tire and road...
March 22, 2017: Sensors
https://www.readbyqxmd.com/read/28323640/a-micro-scale-printable-nanoclip-for-electrical-stimulation-and-recording-in-small-nerves
#10
Charles A Lissandrello, Winthrop F Gillis, Jun Shen, Ben W Pearre, Flavia Vitale, Matteo Pasquali, Bradley J Holinski, Daniel J Chew, Alice E White, Timothy J Gardner
OBJECTIVE: The vision of bioelectronic medicine is to treat disease by modulating the signaling of visceral nerves near various end organs. In small animal models, the nerves of interest can have small diameters and limited surgical access. New high-resolution methods for building nerve interfaces are desirable. In this study, we present a novel nerve interface and demonstrate its use for stimulation and recording in small nerves. APPROACH: We design and fabricate micro-scale electrode-laden nanoclips capable of interfacing with nerves as small as 50 µm in diameter...
June 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28289699/a-database-for-reproducible-manipulation-research-capridb-capture-print-innovate
#11
Florian T Pokorny, Yasemin Bekiroglu, Karl Pauwels, Judith Butepage, Clara Scherer, Danica Kragic
We present a novel approach and database which combines the inexpensive generation of 3D object models via monocular or RGB-D camera images with 3D printing and a state of the art object tracking algorithm. Unlike recent efforts towards the creation of 3D object databases for robotics, our approach does not require expensive and controlled 3D scanning setups and aims to enable anyone with a camera to scan, print and track complex objects for manipulation research. The proposed approach results in detailed textured mesh models whose 3D printed replicas provide close approximations of the originals...
April 2017: Data in Brief
https://www.readbyqxmd.com/read/28269205/gelatin-methacrylamide-hydrogel-with-graphene-nanoplatelets-for-neural-cell-laden-3d-bioprinting
#12
Wei Zhu, Brent T Harris, Lijie Grace Zhang
Nervous system is extremely complex which leads to rare regrowth of nerves once injury or disease occurs. Advanced 3D bioprinting strategy, which could simultaneously deposit biocompatible materials, cells and supporting components in a layer-by-layer manner, may be a promising solution to address neural damages. Here we presented a printable nano-bioink composed of gelatin methacrylamide (GelMA), neural stem cells, and bioactive graphene nanoplatelets to target nerve tissue regeneration in the assist of stereolithography based 3D bioprinting technique...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28256821/low-cost-and-novel-si-based-gel-for-li-ion-batteries
#13
Fucong Lyu, Zhifang Sun, Bo Nan, Sicen Yu, Lujie Cao, Mingyang Yang, Minchan Li, Wenxi Wang, Shaofei Wu, Shanshan Zeng, Hongtao Liu, Zhouguang Lu
Si-based nanostructure composites have been intensively investigated as anode materials for next-generation lithium-ion batteries because of their ultra-high-energy storage capacity. However, it is still a great challenge to fabricate a perfect structure satisfying all the requirements of good electrical conductivity, robust matrix for buffering large volume expansion, and intact linkage of Si particles upon long-term cycling. Here, we report a novel design of Si-based multicomponent three-dimensional (3D) networks in which the Si core is capped with phytic acid shell layers through a facile high-energy ball-milling method...
March 29, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28231405/three-dimensional-printing-of-x-ray-computed-tomography-datasets-with-multiple-materials-using-open-source-data-processing
#14
Ian M Sander, Matthew T McGoldrick, My N Helms, Aislinn Betts, Anthony van Avermaete, Elizabeth Owers, Evan Doney, Taimi Liepert, Glen Niebur, Douglas Liepert, W Matthew Leevy
Advances in three-dimensional (3D) printing allow for digital files to be turned into a "printed" physical product. For example, complex anatomical models derived from clinical or pre-clinical X-ray computed tomography (CT) data of patients or research specimens can be constructed using various printable materials. Although 3D printing has the potential to advance learning, many academic programs have been slow to adopt its use in the classroom despite increased availability of the equipment and digital databases already established for educational use...
February 23, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28229956/development-of-a-thermosensitive-hama-containing-bio-ink-for-the-fabrication-of-composite-cartilage-repair-constructs
#15
Vivian Hilda Maria Mouser, Anna Abbadessa, Riccardo Levato, Wim Hennink, Tina Vermonden, Debby Gawlitta, Jos Malda
Fine-tuning of bio-ink composition and material processing parameters is crucial for the development of biomechanically relevant cartilage constructs. This study aims to design and develop cartilage constructs with tunable internal architectures and relevant mechanical properties. More specifically, the potential of methacrylated hyaluronic acid (HAMA) added to thermosensitive hydrogels composed of methacrylated poly[N-(2-hydroxypropyl)methacrylamide mono/dilactate] (pHPMA-lac)/polyethylene glycol (PEG) triblock copolymers, to optimize cartilage-like tissue formation by embedded chondrocytes, and enhance printability was explored...
February 23, 2017: Biofabrication
https://www.readbyqxmd.com/read/28227435/gelatin-methacrylamide-hydrogel-with-graphene-nanoplatelets-for-neural-cell-laden-3d-bioprinting
#16
Wei Zhu, Brent T Harris, Lijie Grace Zhang, Wei Zhu, Brent T Harris, Lijie Grace Zhang, Wei Zhu, Brent T Harris, Lijie Grace Zhang
Nervous system is extremely complex which leads to rare regrowth of nerves once injury or disease occurs. Advanced 3D bioprinting strategy, which could simultaneously deposit biocompatible materials, cells and supporting components in a layer-by-layer manner, may be a promising solution to address neural damages. Here we presented a printable nano-bioink composed of gelatin methacrylamide (GelMA), neural stem cells, and bioactive graphene nanoplatelets to target nerve tissue regeneration in the assist of stereolithography based 3D bioprinting technique...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28222258/simple-and-large-scale-strategy-to-prepare-flexible-graphene-tape-electrode
#17
Li Wang, Jie Yu, Yayun Zhang, Han Yang, Longfei Miao, Yonghai Song
A simple and large-scale strategy to prepare flexible graphene tape electrode (GTE) was proposed. The flexible GTE was prepared by a facile peeling method in which a piece of commercial graphite foil was first covered by a commercial acrylic transparent tape and then the transparent adhesive tape was quickly torn off from the graphite foil. Scanning electron microscopy results showed that some folded and wrinkled graphene layers stood up on the GTE surface to form three-dimensional (3D) porous graphene foam...
February 28, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28187519/development-of-a-novel-alginate-polyvinyl-alcohol-hydroxyapatite-hydrogel-for-3d-bioprinting-bone-tissue-engineered-scaffolds
#18
Stephanie T Bendtsen, Sean P Quinnell, Mei Wei
Three-dimensional printed biomaterials used as personalized tissue substitutes have the ability to promote and enhance regeneration in areas of defected tissue. The challenge with 3D printing for bone tissue engineering remains the selection of a material with optimal rheological properties for printing in addition to biocompatibility and capacity for uniform cell incorporation. Hydrogel biomaterials may provide sufficient printability to allow cell encapsulation and bioprinting of scaffolds with uniform cell distribution...
May 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28181617/3d-printable-highly-conductive-hybrid-composites-employing-chemically-reinforced-complex-dimensional-fillers-and-thermoplastic-triblock-copolymers
#19
Yejin Jo, Ju Young Kim, So-Yun Kim, Yeong-Hui Seo, Kwang-Suk Jang, Su Yeon Lee, Sungmook Jung, Beyong-Hwan Ryu, Hyun-Suk Kim, Jang-Ung Park, Youngmin Choi, Sunho Jeong
The use of 3-dimensional (3D) printable conductive materials has gained significant attention for various applications because of their ability to form unconventional geometrical architectures that cannot be realized with traditional 2-dimensional printing techniques. To resolve the major requisites in printed electrodes for practical applications (including high conductivity, 3D printability, excellent adhesion, and low-temperature processability), we have designed a chemically-reinforced multi-dimensional filler system comprising amine-functionalized carbon nanotubes, carboxyl-terminated silver nanoparticles, and Ag flakes, with the incorporation of a thermoplastic polystyrene-polyisoprene-polystyrene (SIS) triblock copolymer...
April 20, 2017: Nanoscale
https://www.readbyqxmd.com/read/28157332/arbitrary-shaped-graphene-based-planar-sandwich-supercapacitors-on-one-substrate-with-enhanced-flexibility-and-integration
#20
Shuanghao Zheng, Xingyan Tang, Zhong-Shuai Wu, Yuan-Zhi Tan, Sen Wang, Chenglin Sun, Hui-Ming Cheng, Xinhe Bao
The emerging smart power source-unitized electronics represent an utmost innovative paradigm requiring dramatic alteration from materials to device assembly and integration. However, traditional power sources with huge bottlenecks on the design and performance cannot keep pace with the revolutionized progress of shape-confirmable integrated circuits. Here, we demonstrate a versatile printable technology to fabricate arbitrary-shaped, printable graphene-based planar sandwich supercapacitors based on the layer-structured film of electrochemically exfoliated graphene as two electrodes and nanosized graphene oxide (lateral size of 100 nm) as a separator on one substrate...
February 28, 2017: ACS Nano
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