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https://www.readbyqxmd.com/read/28723300/interest-in-using-mobile-technology-to-help-self-manage-alcohol-use-among-persons-living-with-hiv-a-florida-cohort-cross-sectional-study
#1
J Danielle Sharpe, Zhi Zhou, César G Escobar-Viera, Jamie P Morano, Robert J Lucero, Gladys E Ibañez, Mark Hart, Christa L Cook, Robert L Cook
BACKGROUND: Alcohol consumption at hazardous levels is more prevalent and associated with poor health outcomes among persons living with HIV (PLWH). Although PLWH are receptive to using technology to manage health issues, it is unknown whether a cell phone app to self-manage alcohol use would be acceptable among PLWH who drink. The objectives of this study were to determine factors associated with interest in an app to self-manage drinking and to identify differences in baseline mobile technology use among PLWH by drinking level...
July 19, 2017: Substance Abuse
https://www.readbyqxmd.com/read/28723187/wearable-flexible-and-stretchable-glove-biosensor-for-on-site-detection-of-organophosphorus-chemical-threats
#2
Rupesh K Mishra, Lee J Hubble, Aida Martín, Rajan Kumar, Abbas Barfidokht, Jayoung Kim, Mustafa M Musameh, Ilias L Kyratzis, Joseph Wang
A flexible glove-based electrochemical biosensor with highly stretchable printed electrode system has been developed as a wearable point-of-use screening tool for defense and food security applications. This disposable-mechanically robust "lab-on-a-glove" integrates a stretchable printable enzyme-based biosensing system and active surface for swipe sampling on different fingers, and is coupled with a compact electronic interface for electrochemical detection and real-time wireless data transmission to a smartphone device...
April 28, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28723132/single-cell-mechanical-characteristics-analyzed-by-multiconstriction-microfluidic-channels
#3
Xiang Ren, Parham Ghassemi, Hesam Babahosseini, Jeannine S Strobl, Masoud Agah
A microfluidic device composed of variable numbers of multiconstriction channels is reported in this paper to differentiate a human breast cancer cell line, MDA-MB-231, and a nontumorigenic human breast cell line, MCF-10A. Differences between their mechanical properties were assessed by comparing the effect of single or multiple relaxations on their velocity profiles which is a novel measure of their deformation ability. Videos of the cells were recorded via a microscope using a smartphone, and imported to a tracking software to gain the position information on the cells...
February 24, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28723117/versatile-barometer-biosensor-based-on-au-pt-core-shell-nanoparticle-probe
#4
Qiangqiang Fu, Ze Wu, Dan Du, Chengzhou Zhu, Yuehe Lin, Yong Tang
There is a high global demand for sensitive, portable, user-friendly, and cost-effective biosensors. In this work, we introduce a barometer-based biosensor for the detection of a broad range of targets. The device is operated by measuring the pressure change produced by oxygen (O2) generation in a limited chamber using a portable barometer. The design employs core-shell Au@Pt nanoparticles (Au@PtNPs) as the bioassay probe to catalyze the decomposition of H2O2 and the release of O2. As a proof of concept, we developed barometer-based immunosensors to detect carcinoembryonic antigen (CEA) and ractopamine (Rac)...
June 23, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28723111/augmented-reality-for-real-time-detection-and-interpretation-of-colorimetric-signals-generated-by-paper-based-biosensors
#5
Steven M Russell, Antonio Doménech-Sánchez, Roberto de la Rica
Colorimetric tests are becoming increasingly popular in point-of-need analyses due to the possibility of detecting the signal with the naked eye, which eliminates the utilization of bulky and costly instruments only available in laboratories. However, colorimetric tests may be interpreted incorrectly by nonspecialists due to disparities in color perception or a lack of training. Here we solve this issue with a method that not only detects colorimetric signals but also interprets them so that the test outcome is understandable for anyone...
June 23, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28722404/high-performance-colorimetric-detection-of-thiosulfate-by-using-silver-nanoparticles-for-smartphone-based-analysis
#6
Chen Dong, Zhuqing Wang, Yujie Zhang, Xuehua Ma, M Zubair Iqbal, Lijing Miao, Zhuangwei Zhou, Zheyu Shen, Aiguo Wu
Developing thiosulfate (S2O32-) sensors with silver nanoparticles (AgNPs) for analysis of aqueous solutions with the interference of other anions remains challenging. In this study, we propose a new strategy for excellent selective colorimetric detection of S2O32-. The non-morphological transition of AgNPs leading to a color change from yellow to brown is verified by UV-vis, TEM, DLS, SEM, and XPS analyses. The sensor exhibits high sensitivity with detection limits of 1.0 µM by naked-eye determination and 0...
July 19, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28720103/an-information-and-communication-technology-based-centralized-clinical-trial-to-determine-the-efficacy-and-safety-of-insulin-dose-adjustment-education-based-on-a-smartphone-personal-health-record-application-a-randomized-controlled-trial
#7
Gyuri Kim, Ji Cheol Bae, Byoung Kee Yi, Kyu Yeon Hur, Dong Kyung Chang, Moon-Kyu Lee, Jae Hyeon Kim, Sang-Man Jin
BACKGROUND: A Personal Health Record (PHR) is an online application that allows patients to access, manage, and share their health data. PHRs not only enhance shared decision making with healthcare providers, but also enable remote monitoring and at-home-collection of detailed data. The benefits of PHRs can be maximized in insulin dose adjustment for patients starting or intensifying insulin regimens, as frequent self-monitoring of glucose, self-adjustment of insulin dose, and precise at-home data collection during the visit-to-visit period are important for glycemic control...
July 18, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28719742/integrated-smartphone-app-chip-system-for-on-site-ppb-level-colorimetric-quantitation-of-aflatoxins
#8
Xiaochun Li, Fan Yang, Jessica X H Wong, Hua-Zhong Yu
We demonstrate herein an integrated, smartphone-app-chip (SPAC) system for on-site quantitation of food toxins, as demonstrated with aflatoxin B1 (AFB1), at parts-per-billion (ppb) level in food products. The detection is based on an indirect competitive immunoassay fabricated on a transparent plastic chip with the assistance of a microfluidic channel plate. A 3D-printed optical accessory attached to a smartphone is adapted to align the assay chip and to provide uniform illumination for imaging, with which high-quality images of the assay chip are captured by the smartphone camera and directly processed using a custom-developed Android app...
July 18, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28719494/hockey-fans-in-training-a-pilot-pragmatic-randomized-controlled-trial
#9
Robert J Petrella, Dawn P Gill, Guangyong Zou, Ashleigh De Cruz, Brendan Riggin, Cassandra Bartol, Karen Danylchuk, Kate Hunt, Sally Wyke, Cindy M Gray, Christopher Bunn, Merrick Zwarenstein
INTRODUCTION: Hockey Fans in Training (Hockey FIT) is a gender-sensitized weight loss and healthy lifestyle program. We investigated: 1) feasibility of recruiting and retaining overweight and obese men into a pilot pragmatic randomized controlled trial; and 2) potential for Hockey FIT to lead to weight loss and improvements in other outcomes at 12 weeks and 12 months. METHODS: Male fans of 2 ice hockey teams (35-65 years; body-mass index ≥28 kg/m) located in Ontario (Canada) were randomized to intervention (Hockey FIT) or comparator (Wait-list Control)...
July 17, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28718523/error-rate-of-automated-calculation-for-wound-surface-area-using-a-digital-photography
#10
S Yang, J Park, H Lee, J B Lee, B U Lee, B H Oh
BACKGROUND: Although measuring would size using digital photography is a quick and simple method to evaluate the skin wound, the possible compatibility of it has not been fully validated. PURPOSE: To investigate the error rate of our newly developed wound surface area calculation using digital photography. METHODS: Using a smartphone and a digital single lens reflex (DSLR) camera, four photographs of various sized wounds (diameter: 0.5-3.5 cm) were taken from the facial skin model in company with color patches...
July 17, 2017: Skin Research and Technology
https://www.readbyqxmd.com/read/28717721/evaluation-of-a-smartphone-based-training-strategy-among-health-care-workers-screening-for-cervical-cancer-in-northern-tanzania-the-kilimanjaro-method
#11
Karen E Yeates, Jessica Sleeth, Wilma Hopman, Ophira Ginsburg, Katharine Heus, Linda Andrews, Mary Rose Giattas, Safina Yuma, Godwin Macheku, Aziz Msuya, Olola Oneko
PURPOSE: Almost nine of 10 deaths resulting from cervical cancer occur in low-income countries. Visual inspection under acetic acid (VIA) is an evidence-based, cost-effective approach to cervical cancer screening (CCS), but challenges to effective implementation include health provider training costs, provider turnover, and skills retention. We hypothesized that a smartphone camera and use of cervical image transfer for real-time mentorship by experts located distantly across a closed user group through a commercially available smartphone application would be both feasible and effective in enhancing VIA skills among CCS providers in Tanzania...
December 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28717569/histogram-analysis-for-smartphone-based-rapid-hematocrit-determination
#12
Uddin M Jalal, Sang C Kim, Joon S Shim
A novel and rapid analysis technique using histogram has been proposed for the colorimetric quantification of blood hematocrits. A smartphone-based "Histogram" app for the detection of hematocrits has been developed integrating the smartphone embedded camera with a microfluidic chip via a custom-made optical platform. The developed histogram analysis shows its effectiveness in the automatic detection of sample channel including auto-calibration and can analyze the single-channel as well as multi-channel images...
July 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28716876/author-response-transient-smartphone-blindness-relevance-to-misdiagnosis-in-neurologic-practice
#13
Dean M Wingerchuk, Saraniya Sathiamoorthi
No abstract text is available yet for this article.
July 18, 2017: Neurology
https://www.readbyqxmd.com/read/28716875/letter-re-transient-smartphone-blindness-relevance-to-misdiagnosis-in-neurologic-practice
#14
Koushik Tripathy, Trina Sengupta
No abstract text is available yet for this article.
July 18, 2017: Neurology
https://www.readbyqxmd.com/read/28715792/smartphone-based-cyclic-voltammetry-system-with-graphene-modified-screen-printed-electrodes-for-glucose-detection
#15
Daizong Ji, Lei Liu, Shuang Li, Chen Chen, Yanli Lu, Jiajia Wu, Qingjun Liu
Smartphone-based electrochemical devices have such advantages as the low price, miniaturization, and obtaining the real-time data. As a popular electrochemical method, cyclic voltammetry (CV) has shown its great practicability for quantitative detection and electrodes modification. In this study, a smartphone-based CV system with a simple method of electrode modification was constructed to perform electrochemical detections. The system was composed of these main portions: modified electrodes, portable electrochemical detector and smartphone...
July 11, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28715617/ionophore-based-anion-selective-optode-printed-on-cellulose-paper
#16
Xuewei Wang, Qi Zhang, Changwoo Nam, Michael Hickner, Mollie Mahoney, Mark Meyerhoff
We report a general anion sensing platform based on a portable and cost-effective ion-selective optode and a smartphone detector equipped with a color analysis app. In contrast to traditional anion-selective optodes using a hydrophobic polymer and/or plasticizer to dissolve hydrophobic sensing elements, the new optode relies on hydrophilic cellulose paper. The anion ionophore and a lipophilic pH indicator are inkjet-printed and adsorbed on paper and form a "dry" hydrophobic sensing layer. Porous cellulose sheets also allow the sensing site to be modified with dried buffer that prevents any sample pH dependence of the observed color change...
July 17, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28715396/smartphone-fundus-photography
#17
Hossein Nazari Khanamiri, Austin Nakatsuka, Jaafar El-Annan
Smartphone fundus photography is a simple technique to obtain ocular fundus pictures using a smartphone camera and a conventional handheld indirect ophthalmoscopy lens. This technique is indispensable when picture documentation of optic nerve, retina, and retinal vessels is necessary but a fundus camera is not available. The main advantage of this technique is the widespread availability of smartphones that allows documentation of macula and optic nerve changes in many settings that was not previously possible...
July 6, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28713481/gerontechnologies-for-older-patients-with-heart-failure-what-is-the-role-of-smartphones-tablets-and-remote-monitoring-devices-in-improving-symptom-monitoring-and-self-care-management
#18
Ruth M Masterson Creber, Kathleen T Hickey, Mathew S Maurer
Older adults with heart failure have multiple chronic conditions and a large number and range of symptoms. A fundamental component of heart failure self-care management is regular symptom monitoring. Symptom monitoring can be facilitated by cost-effective, easily accessible technologies that are integrated into patients' lives. Technologies that are tailored to older adults by incorporating gerontological design principles are called gerontechnologies. Gerontechnology is an interdisciplinary academic and professional field that combines gerontology and technology with the goals of improving prevention, care, and enhancing the quality of life for older adults...
October 2016: Current Cardiovascular Risk Reports
https://www.readbyqxmd.com/read/28712686/using-touch-surgery-to-improve-surgical-education-in-low-and-middle-income-settings-a-randomized-control-trial
#19
Gisele Juru Bunogerane, Kathryn Taylor, Yihan Lin, Ainhoa Costas-Chavarri
BACKGROUND/OBJECTIVE: There is a severe surgical workforce shortage in Rwanda. Innovative educational tools must be introduced to train more residents and increase surgical capacity. Touch Surgery (TS) is a smartphone application that offers trainees the opportunity to practice operations; however, its effect is unknown in low- and middle-income countries. Our objectives were to determine the training effect of TS and its feasibility for use in surgery education in a low-resource setting...
July 13, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/28711743/is-a-simple-smartphone-application-capable-of-improving-biological-rhythms-in-bipolar-disorder
#20
Diego Hidalgo-Mazzei, María Reinares, Ainoa Mateu, Mario F Juruena, Allan H Young, Víctor Pérez-Sola, Eduard Vieta, Francesc Colom
BACKGROUND: Biological rhythms (BR) disturbance has been suggested as a potential mediator of mood episodes in Bipolar Disorder (BD). The Biological Rhythms Interview of Assessment in Neuropsychiatry (BRIAN) was designed as an assessment tool to evaluate BR domains comprehensively. In the context of a trial evaluating a smartphone application delivering personalized psychoeducational contents for BD (SIMPLe 1.0), the main aim of this study is to evaluate the potential impact of SIMPLe 1...
July 10, 2017: Journal of Affective Disorders
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