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https://www.readbyqxmd.com/read/27922094/foldable-and-disposable-memory-on-paper
#1
Byung-Hyun Lee, Dong-Il Lee, Hagyoul Bae, Hyejeong Seong, Seung-Bae Jeon, Myung-Lok Seol, Jin-Woo Han, M Meyyappan, Sung-Gap Im, Yang-Kyu Choi
Foldable organic memory on cellulose nanofibril paper with bendable and rollable characteristics is demonstrated by employing initiated chemical vapor deposition (iCVD) for polymerization of the resistive switching layer and inkjet printing of the electrode, where iCVD based on all-dry and room temperature process is very suitable for paper electronics. This memory exhibits a low operation voltage of 1.5 V enabling battery operation compared to previous reports and wide memory window. The memory performance is maintained after folding tests, showing high endurance...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27920430/biomimetic-antimicrobial-cloak-by-graphene-oxide-agar-hydrogel
#2
Massimiliano Papi, Valentina Palmieri, Francesca Bugli, Marco De Spirito, Maurizio Sanguinetti, Carlotta Ciancico, Maria Chiara Braidotti, Silvia Gentilini, Luca Angelani, Claudio Conti
Antibacterial surfaces have an enormous economic and social impact on the worldwide technological fight against diseases. However, bacteria develop resistance and coatings are often not uniform and not stable in time. The challenge is finding an antibacterial coating that is biocompatible, cost-effective, not toxic, and spreadable over large and irregular surfaces. Here we demonstrate an antibacterial cloak by laser printing of graphene oxide hydrogels mimicking the Cancer Pagurus carapace. We observe up to 90% reduction of bacteria cells...
December 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917910/physically-transient-memory-on-a-rapidly-dissoluble-paper-for-security-application
#3
Hagyoul Bae, Byung-Hyun Lee, Dongil Lee, Myeong-Lok Seol, Daewon Kim, Jin-Woo Han, Choong-Ki Kim, Seung-Bae Jeon, Daechul Ahn, Sang-Jae Park, Jun-Young Park, Yang-Kyu Choi
We report the transient memory device by means of a water soluble SSG (solid sodium with glycerine) paper. This material has a hydroscopic property hence it can be soluble in water. In terms of physical security of memory devices, prompt abrogation of a memory device which stored a large number of data is crucial when it is stolen because all of things have identified information in the memory device. By utilizing the SSG paper as a substrate, we fabricated a disposable resistive random access memory (RRAM) which has good data retention of longer than 10(6) seconds and cycling endurance of 300 cycles...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917222/access-attitudes-and-training-in-information-technologies-and-evidence-based-medicine-among-medical-students-at-university-of-zimbabwe-college-of-health-sciences
#4
Swapnil Parve, Ali Ershadi, Alexandr Karimov, Anne Dougherty, Chiratidzo E Ndhlovu, Midion M Chidzonga, Majid Sadigh
BACKGROUND: The Medical Education Partnership Initiative, has helped to mitigate the digital divide in Africa. The aim of the study was to assess the level of access, attitude, and training concerning meaningful use of electronic resources and EBM among medical students at an African medical school. METHODS: The study involved medical students at the University of Zimbabwe College of Health Sciences, Harare. The needs assessment tool consisted of a 21-question, paper-based, voluntary and anonymous survey...
September 2016: African Health Sciences
https://www.readbyqxmd.com/read/27911378/iridium-oxide-reduced-graphene-oxide-nanohybrid-thin-film-modified-screen-printed-electrodes-as-disposable-electrochemical-paper-microfluidic-ph-sensors
#5
Jiang Yang, Tae-Joon Kwak, Xiaodong Zhang, Robert McClain, Woo-Jin Chang, Sundaram Gunasekaran
A facile, controllable, inexpensive and green electrochemical synthesis of IrO2-graphene nanohybrid thin films is developed to fabricate an easy-to-use integrated paper microfluidic electrochemical pH sensor for resource-limited settings. Taking advantages from both pH meters and strips, the pH sensing platform is composed of hydrophobic barrier-patterned paper micropad (µPAD) using polydimethylsiloxane (PDMS), screen-printed electrode (SPE) modified with IrO2-graphene films and molded acrylonitrile butadiene styrene (ABS) plastic holder...
November 22, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27895754/evaluation-of-the-efficacy-of-paclitaxel-with-curcumin-combination-in-ovarian-cancer-cells
#6
Zeng Liu, Yuan-Yuan Zhu, Zhao-Yuan Li, Si-Qing Ning
The aim of the present study was to evaluate the efficacy of paclitaxel combined with curcumin (CUR) against drug resistance in ovarian cancer cells. PLGA-phospholipid-PEG nanoparticles were prepared using the nano precipitation method. The size and morphology of the nanoparticles were determined using a transmission electron microscope and particle size analyzer. The encapsulation efficiency of nanoparticles was determined using the ultrafiltration centrifugation method. The dialysis method was used to study the release of PLGA-phospholipid-PEG nanoparticles...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27892647/recent-progress-in-the-development-of-printed-thin-film-transistors-and-circuits-with-high-resolution-printing-technology
#7
Kenjiro Fukuda, Takao Someya
Printed electronics enable the fabrication of large-scale, low-cost electronic devices and systems, and thus offer significant possibilities in terms of developing new electronics/optics applications in various fields. Almost all electronic applications require information processing using logic circuits. Hence, realizing the high-speed operation of logic circuits is also important for printed devices. This report summarizes recent progress in the development of printed thin-film transistors (TFTs) and integrated circuits in terms of materials, printing technologies, and applications...
November 28, 2016: Advanced Materials
https://www.readbyqxmd.com/read/27888725/functional-response-of-osteoblasts-in-functionally-gradient-titanium-alloy-mesh-arrays-processed-by-3d-additive-manufacturing
#8
K C Nune, A Kumar, R D K Misra, S J Li, Y L Hao, R Yang
We elucidate here the osteoblasts functions and cellular activity in 3D printed interconnected porous architecture of functionally gradient Ti-6Al-4V alloy mesh structures in terms of cell proliferation and growth, distribution of cell nuclei, synthesis of proteins (actin, vinculin, and fibronectin), and calcium deposition. Cell culture studies with pre-osteoblasts indicated that the interconnected porous architecture of functionally gradient mesh arrays was conducive to osteoblast functions. However, there were statistically significant differences in the cellular response depending on the pore size in the functionally gradient structure...
November 18, 2016: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/27887815/recycled-hierarchical-tripod-like-cucl-from-cu-pcb-waste-etchant-for-lithium-ion-battery-anode
#9
Song Liu, Hongying Hou, Xianxi Liu, Jixiang Duan, Yuan Yao, Qishu Liao, Jing Li, Yunzhen Yang
Hierarchical CuCl with high economic value added (EVA) was successfully recycled with 85% recovery from the acid Cu printed circuit board (Cu-PCB) waste etchant via facile liquid chemical reduction. The micro-structure and morphology of the recycled hierarchical CuCl were systematically characterized in terms of scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), transmission electron microscopy (TEM) and Brunauer-Emmett-Teller (BET). Furthermore, the corresponding electrochemical performances as lithium ion battery (LIB) anode were also investigated in terms of galvanostatic charge/discharge, cyclic voltammetry (CV) and AC impedance...
October 29, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27884853/gyejibongneyong-hwan-a-herbal-medicine-for-the-treatment-of-dysmenorrhoea-with-uterine-fibroids-a-protocol-for-a-randomised-controlled-trial
#10
Jeeyoun Jung, Ju Ah Lee, Mi Mi Ko, Sooseong You, Eunhee Lee, Jiae Choi, Byoung-Kab Kang, Myeong Soo Lee
INTRODUCTION: Gyejibongneyong-hwan (GBH), or the Guizhi Fuling Formula in Chinese, is widely used to treat uterine fibroids in East Asian countries including Korea, China and Japan. This study will assess the efficacy and safety of the GBH formula for the treatment of dysmenorrhoea. METHODS AND ANALYSIS: This study will be a randomised double-blind controlled trial with two parallel arms: the GBH group and the placebo group. This trial will recruit 38 women between 18 and 45 years of age with secondary dysmenorrhoea with uterine fibroids...
November 24, 2016: BMJ Open
https://www.readbyqxmd.com/read/27881911/systematic-review-and-meta-analysis-of-randomized-controlled-trials-on-wenxin-keli
#11
REVIEW
Xiaoyi Wang, Ying Wang, Xiaoyuan Feng, Ying Lu, Yu Zhang, Wenwen Wang, Wentao Zhu
OBJECTIVE: The aim of the study was to evaluate the effectiveness, safety, and cost associated with Wenxin keli in the treatment of cardiovascular diseases based on meta-analysis. METHODS: The terms "Wenxin keli" and "Wenxin" were used as the search terms in the PubMed, ProQuest, Springer, the Cochrane Library, CNKI (China National Knowledge Infrastructure), VIP (Chinese Scientific Journals Database), and Wan fang electronic databases (from January 2000 to October 2015)...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27881093/continuous-quality-improvement-in-nephrology-a-systematic-review
#12
Julie Wright Nunes, F Jacob Seagull, Panduranga Rao, Jonathan H Segal, Nandita S Mani, Michael Heung
BACKGROUND: Continuous quality improvement (CQI) has been successfully applied in business and engineering for over 60 years. While using CQI techniques within nephrology has received increased attention, little is known about where, and with what measure of success, CQI can be attributed to improving outcomes within nephrology care. This is particularly important as payors' focus on value-based healthcare and reimbursement is tied to achieving quality improvement thresholds. We conducted a systematic review of CQI applications in nephrology...
November 24, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27877901/transfer-printing-of-active-layers-to-achieve-high-quality-interfaces-in-sequentially-deposited-multilayer-inverted-polymer-solar-cells-fabricated-in-air
#13
Varun Vohra, Takuya Anzai, Shusei Inaba, William Porzio, Luisa Barba
Polymer solar cells (PSCs) are greatly influenced by both the vertical concentration gradient in the active layer and the quality of the various interfaces. To achieve vertical concentration gradients in inverted PSCs, a sequential deposition approach is necessary. However, a direct approach to sequential deposition by spin-coating results in partial dissolution of the underlying layers which decreases the control over the process and results in not well-defined interfaces. Here, we demonstrate that by using a transfer-printing process based on polydimethylsiloxane (PDMS) stamps we can obtain increased control over the thickness of the various layers while at the same time increasing the quality of the interfaces and the overall concentration gradient within the active layer of PSCs prepared in air...
2016: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/27874001/spray-printing-of-organic-semiconducting-single-crystals
#14
Grigorios-Panagiotis Rigas, Marcia M Payne, John E Anthony, Peter N Horton, Fernando A Castro, Maxim Shkunov
Single-crystal semiconductors have been at the forefront of scientific interest for more than 70 years, serving as the backbone of electronic devices. Inorganic single crystals are typically grown from a melt using time-consuming and energy-intensive processes. Organic semiconductor single crystals, however, can be grown using solution-based methods at room temperature in air, opening up the possibility of large-scale production of inexpensive electronics targeting applications ranging from field-effect transistors and light-emitting diodes to medical X-ray detectors...
November 22, 2016: Nature Communications
https://www.readbyqxmd.com/read/27861858/home-health-nursing-care-services-in-greece-during-an-economic-crisis
#15
T Adamakidou, A Kalokerinou-Anagnostopoulou
AIM: The purpose of this review was to describe public home healthcare nursing services in Greece. BACKGROUND: The effectiveness and the efficiency of home healthcare nursing are well documented in the international literature. In Greece, during the current financial crisis, the development of home healthcare nursing services is the focus and interest of policymakers and academics because of its contribution to the viability of the healthcare system. SOURCES OF EVIDENCE: A review was conducted of the existing legislation, the printed and electronic bibliography related to the legal framework, the structures that provide home health care, the funding of the services, the human resources and the services provided...
November 15, 2016: International Nursing Review
https://www.readbyqxmd.com/read/27856164/paper-based-maskless-enzymatic-sensor-for-glucose-determination-combining-ink-and-wire-electrodes
#16
O Amor-Gutiérrez, E Costa Rama, A Costa-García, M T Fernández-Abedul
In this work we have developed an amperometric enzymatic biosensor in a paper-based platform with a mixed electrode configuration: carbon ink for the working electrode (WE) and metal wires (from a low-cost standard electronic connection) for reference (RE) and auxiliary electrodes (AE). A hydrophobic wax-defined paper area was impregnated with diluted carbon ink. Three gold-plated pins of the standard connection are employed, one for connecting the WE and the other two acting as RE and AE. The standard connection works as a clip in order to support the paper in between...
November 6, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27847875/all-printed-magnetically-self-healing-electrochemical-devices
#17
Amay J Bandodkar, Cristian S López, Allibai Mohanan Vinu Mohan, Lu Yin, Rajan Kumar, Joseph Wang
The present work demonstrates the synthesis and application of permanent magnetic Nd2Fe14B microparticle (NMP)-loaded graphitic inks for realizing rapidly self-healing inexpensive printed electrochemical devices. The incorporation of NMPs into the printable ink imparts impressive self-healing ability to the printed conducting trace, with rapid (~50 ms) recovery of repeated large (3 mm) damages at the same or different locations without any user intervention or external trigger. The permanent and surrounding-insensitive magnetic properties of the NMPs thus result in long-lasting ability to repair extreme levels of damage, independent of ambient conditions...
November 2016: Science Advances
https://www.readbyqxmd.com/read/27829554/ultrasensitive-electrochemical-aptasensor-based-on-sandwich-architecture-for-selective-label-free-detection-of-colorectal-cancer-ct26-cells
#18
Ayemeh Bagheri Hashkavayi, Jahan Bakhsh Raoof, Reza Ojani, Saeid Kavoosian
Colorectal cancer is one of the most common cancers in the world and has no effective treatment. Therefore, development of new methods for early diagnosis is instantly required. Biological recognition probes such as synthetic receptor and aptamer is one of the candidate recognition layers to detect important biomolecules. In this work, an electrochemical aptasensor was developed by fabricating an aptamer-cell-aptamer sandwich architecture on an SBA-15-3-aminopropyltriethoxysilane (SBA-15-pr-NH2) and Au nanoparticles (AuNPs) modified graphite screen printed electrode (GSPE) surface for the selective, label-free detection of CT26 cancer cells...
October 19, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27822565/teleconsent-a-novel-approach-to-obtain-informed-consent-for-research
#19
Brandon M Welch, Elizabeth Marshall, Suparna Qanungo, Ayesha Aziz, Marilyn Laken, Leslie Lenert, Jihad Obeid
Lack of recruitment of qualified research participants continues to be a significant bottleneck in clinical trials, often resulting in costly time extensions, underpowered results, and in some cases early termination. Some of the reasons for suboptimal recruitment include laborious consent processes and access to participants at remote locations. While new electronic consents technologies (eConsent) help overcome challenges related to readability and consent management, they do not adequately address challenges related to remote access...
August 15, 2016: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/27815802/psychiatry-resident-training-in-cultural-competence-an-educator-s-toolkit
#20
REVIEW
Irma Corral, Toni L Johnson, Pheston G Shelton, Oliver Glass
Resident physicians training in psychiatry in the U.S. are required to master a body of knowledge related to cultural psychiatry; are expected to adopt attitudes that endorse the principles of cultural competence; and finally are expected to acquire specific cultural competence skills that facilitate working effectively with diverse patients. This article first provides an overview of the Accreditation Council for Graduate Medical Education (ACGME) competencies related to cultural competence, as well as the American Academy of Child and Adolescent Psychiatry's (AACAP) recommendations for the cultural competence training of child/adolescent fellows...
November 5, 2016: Psychiatric Quarterly
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