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https://www.readbyqxmd.com/read/28635956/self-assembled-three-dimensional-network-designs-for-soft-electronics
#1
Kyung-In Jang, Kan Li, Ha Uk Chung, Sheng Xu, Han Na Jung, Yiyuan Yang, Jean Won Kwak, Han Hee Jung, Juwon Song, Ce Yang, Ao Wang, Zhuangjian Liu, Jong Yoon Lee, Bong Hoon Kim, Jae-Hwan Kim, Jungyup Lee, Yongjoon Yu, Bum Jun Kim, Hokyung Jang, Ki Jun Yu, Jeonghyun Kim, Jung Woo Lee, Jae-Woong Jeong, Young Min Song, Yonggang Huang, Yihui Zhang, John A Rogers
Low modulus, compliant systems of sensors, circuits and radios designed to intimately interface with the soft tissues of the human body are of growing interest, due to their emerging applications in continuous, clinical-quality health monitors and advanced, bioelectronic therapeutics. Although recent research establishes various materials and mechanics concepts for such technologies, all existing approaches involve simple, two-dimensional (2D) layouts in the constituent micro-components and interconnects. Here we introduce concepts in three-dimensional (3D) architectures that bypass important engineering constraints and performance limitations set by traditional, 2D designs...
June 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28635174/flash-light-millisecond-self-assembly-of-high-%C3%AF-block-copolymers-for-wafer-scale-sub-10-nm-nanopatterning
#2
Hyeong Min Jin, Dae Yong Park, Seong-Jun Jeong, Gil Yong Lee, Ju Young Kim, Jeong Ho Mun, Seung Keun Cha, Joonwon Lim, Jun Soo Kim, Kwang Ho Kim, Keon Jae Lee, Sang Ouk Kim
One of the fundamental challenges encountered in successful incorporation of directed self-assembly in sub-10 nm scale practical nanolithography is the process compatibility of block copolymers with a high Flory-Huggins interaction parameter (χ). Herein, reliable, fab-compatible, and ultrafast directed self-assembly of high-χ block copolymers is achieved with intense flash light. The instantaneous heating/quenching process over an extremely high temperature (over 600 °C) by flash light irradiation enables large grain growth of sub-10 nm scale self-assembled nanopatterns without thermal degradation or dewetting in a millisecond time scale...
June 21, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28634826/tai-vacuolar-invertase-orthologs-the-interspecific-variability-in-tomato-plants-solanum-section-lycopersicon
#3
M A Slugina, A V Shchennikova, E Z Kochieva
Understanding the genetic mechanisms underlying carbohydrate metabolism can promote the development of biotechnological advances in fruit plants. The flesh tomato fruit represents an ideal system for examining the role of sucrose cleavage enzymes in fruit development, and wild tomato species differing in storage sugars serve as an excellent research material for this purpose. Plant vacuolar invertase is a key enzyme of sucrose metabolism in the sink organs. In the present study, we identified complete gene sequences encoding the TAI vacuolar invertase in 11 wild and one cultivated tomato accessions of the Solanum section Lycopersicon...
June 20, 2017: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/28634447/the-moving-rubber-hand-illusion-reveals-that-explicit-sense-of-agency-for-tapping-movements-is-preserved-in-functional-movement-disorders
#4
Angela Marotta, Federica Bombieri, Massimiliano Zampini, Federico Schena, Carlo Dallocchio, Mirta Fiorio, Michele Tinazzi
Functional movement disorders (FMD) are characterized by motor symptoms (e.g., tremor, gait disorder, and dystonia) that are not compatible with movement abnormalities related to a known organic cause. One key clinical feature of FMD is that motor symptoms are similar to voluntary movements but are subjectively experienced as involuntary by patients. This gap might be related to abnormal self-recognition of bodily action, which involves two main components: sense of agency and sense of body ownership. The aim of this study was to systematically investigate whether this function is altered in FMD, specifically focusing on the subjective feeling of agency, body ownership, and their interaction during normal voluntary movements...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28629056/antimicrobial-and-antioxidant-potentials-of-biosynthesized-colloidal-zinc-oxide-nanoparticles-for-a-fortified-cold-cream-formulation-a-potent-nanocosmeceutical-application
#5
Sonia S, Linda Jeeva Kumari H, Ruckmani K, Sivakumar M
Nanocosmeceuticals are promising applications of nanotechnology in personal care industries. Zinc oxide is an inorganic material that is non-toxic and skin compatible with self-cleansing and microbicidal properties. Herein, exploitation of colloidal zinc oxide nanoparticles (ZnONps) as potent biomaterial for a topical formulation of cosmetic and dermatological significance is employed. ZnONps were green synthesized using environmentally benign Adhatoda vasica leaf extract and characterized by UV-Vis absorption spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), dynamic light scattering (DLS), high-resolution transmission electron microscopy (HR-TEM) and energy-dispersive X-ray spectroscopy (EDX)...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28622720/a-rram-integrated-4t-sram-with-self-inhibit-resistive-switching-load-by-pure-cmos-logic-process
#6
Meng-Yin Hsu, Chu-Feng Liao, Yi-Hong Shih, Chrong Jung Lin, Ya-Chin King
This paper reports a novel full logic compatible 4T2R non-volatile static random access memory (nv-SRAM) featuring its self-inhibit data storing mechanism for in low-power/high-speed SRAM application. With compact cell area and full logic compatibility, this new nv-SRAM incorporates two STI-ReRAMs embedded inside the 4T SRAM. Data can be read/write through a cross-couple volatile structure for maintaining fast accessing speed. Data can be non-volatilely stored in new SRAM cell through a unique self-inhibit operation onto the resistive random access memory (RRAM) load, achieving zero static power during data hold...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28619449/development-of-semisolid-self-microemulsifying-drug-delivery-systems-smeddss-filled-in-hard-capsules-for-oral-delivery-of-aciclovir
#7
Ljiljana Djekic, Jovana Jankovic, Bojan Čalija, Marija Primorac
The study aimed to develop semisolid self-microemulsifying drug delivery systems (SMEDDSs) as carriers for oral delivery of aciclovir in hard hydroxypropylmethyl cellulose (HPMC) capsules. Six self-dispersing systems (SD1-SD6) were prepared by loading aciclovir into the semisolid formulations consisting of medium chain length triglycerides (lipid), macrogolglycerol hydroxystearate (surfactant), polyglyceryl-3-dioleate (cosurfactant), glycerol (hydrophilic cosolvent), and macrogol 8000 (viscosity modifier). Their characterization was performed in order to identify the semisolid system with rheological behaviour suitable for filling in hard HPMC capsules and fast dispersibility in acidic and alkaline aqueous media with formation of oil-in-water microemulsions...
June 12, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28616945/assembling-and-ordering-polymer-grafted-nanoparticles-in-three-dimensions
#8
Honghu Zhang, Wenjie Wang, Mufit Akinc, Surya Mallapragada, Alex Travesset, David Vaknin
Taking advantage of the aqueous biphasic behavior of polyethylene glycol (PEG)/salts, recent experiments have demonstrated self-assembly and crystallization of PEG-grafted gold nanoparticles (PEG-AuNPs) into tunable two-dimensional (2D) supercrystals by adjusting salt concentration (for instance, K2CO3). In those studies, combined experimental evidence and theoretical analysis have pointed out the possibility that similar strategies can lead to three-dimensional (3D) formation of ordered nanoparticle precipitates...
June 15, 2017: Nanoscale
https://www.readbyqxmd.com/read/28616063/benefits-of-gene-flow-are-mediated-by-individual-variability-in-self-compatibility-in-small-isolated-populations-of-an-endemic-plant-species
#9
Christopher T Frye, Maile C Neel
Many rare and endemic species experience increased rates of self-fertilization and mating among close relatives as a consequence of existing in small populations within isolated habitat patches. Variability in self-compatibility among individuals within populations may reflect adaptation to local demography and genetic architecture, inbreeding, or drift. We use experimental hand-pollinations under natural field conditions to assess the effects of gene flow in 21 populations of the central Appalachian endemic Trifolium virginicum that varied in population size and degree of isolation...
July 2017: Evolutionary Applications
https://www.readbyqxmd.com/read/28614896/-quality-of-life-and-potential-incriminating-factors-among-palliative-care-givers-a-german-survey-of-the-kompact-working-group
#10
Deniz Gencer, Cornelia Meffert, Peter Herschbach, Matthias Hipp, Gerhild Becker
Aim of the study Due to the aging population in Germany, the need for palliative care institutions will increase. Considering the lack of resources, work stress of palliative care nurses could increase significantly. It was the aim of this study to identify risk factors for job overload and work stress of palliative care nurses in the inpatient and outpatient setting. Methods In cooperation with the KOMPACT Working Group, we conducted an anonymous survey of palliative care givers in Baden-Württemberg, Germany...
June 14, 2017: Das Gesundheitswesen
https://www.readbyqxmd.com/read/28613388/self-assembled-polymeric-ionic-liquid-functionalized-cellulose-nano-crystals-constructing-3d-ion-conducting-channels-within-ionic-liquid-based-composite-polymer-electrolytes
#11
Xuan Qing Shi, Qing Xia, Xiao Xiang, Yun Sheng Ye, Yan Hai Peng, Gang Zhi Xue, Lin Xiao Xie, Yiu-Wing Mai
Composite polymeric and ionic liquid (IL) electrolytes are some of the most promising electrolyte systems for safer battery technology. Although much effort has been directed towards enhancing the transport properties of polymer electrolytes (PEs) through nanoscopic modification by incorporating nano-fillers, it is still difficult to construct ideal ion conducting networks. Here, a novel class of three-dimensional self-assembled polymeric ionic liquid (PIL)-functionalized cellulose nano-crystals (CNC) confining ILs in surface-grafted PIL polymer chains, able to form colloidal crystal polymer electrolytes (CCPE), is reported...
June 14, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28602292/high-sensitive-bioorthogonal-sers-tag-for-live-cancer-cell-imaging-by-self-assembling-core-satellites-structure-gold-silver-nanocomposite
#12
Meng Chen, Ling Zhang, Mingxia Gao, Xiangmin Zhang
A novel, high-sensitivity, biocompatible SERS tag with core-shell structure based on gold nanoparticles containing alkynyl molecule core -silver nanoparticle satellites shell was fabricated for the first time to be used for live cancer cells Surface enhanced Raman scattering (SERS) imaging. (E)-2-((4-(phenylethynyl)benzylidene) amino) ethanethiol (PBAT) synthesized facilely in our lab is the Raman-silence region reporter which is advantage for bioorthogonal SERS cell imaging. In order to enhance the intensity of the Raman tags for live cancer cell imaging, a series of news measures have been adopted...
September 1, 2017: Talanta
https://www.readbyqxmd.com/read/28596129/sync-to-link-endorphin-mediated-synchrony-effects-on-cooperation
#13
Martin Lang, Vladimír Bahna, John H Shaver, Paul Reddish, Dimitris Xygalatas
Behavioural synchronization has been shown to facilitate social bonding and cooperation but the mechanisms through which such effects are attained are poorly understood. In the current study, participants interacted with a pre-recorded confederate who exhibited different rates of synchrony, and we investigated three mechanisms for the effects of synchrony on likeability and trusting behaviour: self-other overlap, perceived cooperation, and opioid system activation measured via pain threshold. We show that engaging in highly synchronous behaviour activates all three mechanisms, and that these mechanisms mediate the effects of synchrony on liking and investment in a Trust Game...
June 6, 2017: Biological Psychology
https://www.readbyqxmd.com/read/28581548/metal-oxide-assisted-surface-treatment-of-polyimide-gate-insulators-for-high-performance-organic-thin-film-transistors
#14
Sohee Kim, Taewook Ha, Sungmi Yoo, Jae-Won Ka, Jinsoo Kim, Jong Chan Won, Dong Hoon Choi, Kwang-Suk Jang, Yun Ho Kim
We developed a facile method for treating polyimide-based organic gate insulator (OGI) surfaces with self-assembled monolayers (SAMs) by introducing metal-oxide interlayers, called the metal-oxide assisted SAM treatment (MAST). To create sites for surface modification with SAM materials on polyimide-based OGI (KPI) surfaces, the metal-oxide interlayer, here amorphous alumina (α-Al2O3), was deposited on the KPI gate insulator using spin-coating via a rapid sol-gel reaction, providing an excellent template for the formation of a high-quality SAM with phosphonic acid anchor groups...
June 14, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28580928/three-dimensional-crossbar-arrays-of-self-rectifying-si-sio2-si-memristors
#15
Can Li, Lili Han, Hao Jiang, Moon-Hyung Jang, Peng Lin, Qing Wu, Mark Barnell, J Joshua Yang, Huolin L Xin, Qiangfei Xia
Memristors are promising building blocks for the next-generation memory and neuromorphic computing systems. Most memristors use materials that are incompatible with the silicon dominant complementary metal-oxide-semiconductor technology, and require external selectors in order for large memristor arrays to function properly. Here we demonstrate a fully foundry-compatible, all-silicon-based and self-rectifying memristor that negates the need for external selectors in large arrays. With a p-Si/SiO2/n-Si structure, our memristor exhibits repeatable unipolar resistance switching behaviour (10(5) rectifying ratio, 10(4) ON/OFF) and excellent retention at 300 °C...
June 5, 2017: Nature Communications
https://www.readbyqxmd.com/read/28574708/packing-defects-in-fatty-amine-self-assembled-monolayers-on-mica-as-revealed-from-afm-techniques
#16
José J Benítez, José A Heredia-Guerrero, Miguel A San-Miguel, Heather C Galloway
Self-assembled monolayers of n-octadecylamine (ODA-SAMs) on mica have been prepared and studied by contact and jumping mode atomic force microscopy (AFM). Adhesion and friction data show that the compactness of the monolayers spontaneously increases as they are allowed to ripen. Molecular packing can also be induced by the controlled mechanical perturbation exerted by the probe when getting into and out of contact intermittently. Under these conditions, defects and vacancies aggregate giving rise to detectable pinholes uniformly distributed in AFM images...
June 15, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28573270/hybrid-colloidal-microswimmers-through-sequential-capillary-assembly
#17
Songbo Ni, Emanuele Marini, Ivo Buttinoni, Heiko Wolf, Lucio Isa
Active colloids, also known as artificial microswimmers, are self-propelled micro- and nanoparticles that convert uniform sources of fuel (e.g. chemical) or uniform external driving fields (e.g. magnetic or electric) into directed motion by virtue of asymmetry in their shape or composition. These materials are currently attracting enormous scientific attention as models for out-of-equilibrium systems and with the promise to be used as micro- and nanoscale devices. However, current fabrication of active colloids is limited in the choice of available materials, geometries, and modes of motion...
June 14, 2017: Soft Matter
https://www.readbyqxmd.com/read/28573076/optimizing-the-ulv-vfq-for-clinical-use-through-item-set-reduction-psychometric-properties-and-trade-offs
#18
Gislin Dagnelie, Pamela E Jeter, Olukemi Adeyemo
PURPOSE: We examine the dimensionality of the 150-item visual functioning questionnaire for individuals with ultralow vision (ULV-VFQ) and develop representative abbreviated versions, facilitating clinical use, while retaining compatibility with a 17-item performance assessment. METHODS: Subsets with 50 and 23 items covering the full difficulty range were selected, with evenly spaced item measures (IMs) and good representation of visual aspects and functional domains...
May 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28551298/digital-imaging-and-communications-in-medicine-dicom-information-conversion-procedure-for-suv-calculation-of-pet-scanners-with-different-dicom-header-information
#19
Han-Back Shin, Heesoon Sheen, Ho-Young Lee, Jihoon Kang, Do-Kun Yoon, Tae Suk Suh
PURPOSE: In nuclear medicine, the standardized uptake value (SUV) obtained using positron emission tomography with 2-deoxy-2-fluoro-D-glucose (FDG-PET) is widely used as a semi-quantitative diagnosis factor. We found that the header file of the Philips Allegro PET scanner using the Digital Imaging and Communications in Medicine (DICOM) standard was stored differently than with other scanners. Thus, the purpose of this study was to develop a DICOM header information conversion program to ensure compatibility between Allegro and other equipment...
May 24, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28550376/development-of-an-amber-compatible-transferable-force-field-for-poly-ethylene-glycol-ethers-glymes
#20
Nathalia S V Barbosa, Yong Zhang, Eduardo R A Lima, Frederico W Tavares, Edward J Maginn
An all-atom force field consistent with the general AMBER force field (GAFF) format for poly(ethylene glycol) dimethyl ether (diglyme or G2) was developed by fitting to experimental liquid densities and dielectric constants. Not surprisingly, the new force field gives excellent agreement with experimental liquid phase densities and dielectric constants over a wide temperature range. Other dynamic and thermodynamic properties of liquid G2 such as its self-diffusion coefficient, shear viscosity, and vaporization enthalpy were also calculated and compared to experimental data...
June 2017: Journal of Molecular Modeling
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