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https://www.readbyqxmd.com/read/28728010/advances-in-point-of-care-technologies-for-molecular-diagnostics
#1
REVIEW
Mohammad Zarei
Advances in miniaturization, nanotechnology, and microfluidics, along with developments in cloud-connected point-of-care (POC) diagnostics technologies are pushing the frontiers of POC devices toward low-cost, user-friendly, and enhanced sensitivity molecular-level diagnostics. The combination of various bio-sensing platforms within smartphone-integrated electronic readers provides accurate on-site and on-time diagnostics based on various types of chemical and biological targets. Further, 3D printing technology shows a huge potential toward fabrication and improving the performance of POC devices...
July 11, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28727992/how-does-emotional-exhaustion-influence-work-stress-relationships-between-stressor-appraisals-hedonic-tone-and-fatigue-in-nurses-daily-tasks-a-longitudinal-cohort-study
#2
Jordi Fernández-Castro, Fermín Martínez-Zaragoza, Tatiana Rovira, Silvia Edo, Ángel Solanes-Puchol, Beatriz Martín-Del-Río, Rosa García-Sierra, Gemma Benavides-Gil, Eduardo Doval
BACKGROUND: Work-related stress is a prevalent condition in the nursing profession, and its influence may vary according to changeable individual and situational factors. It is, therefore, important to investigate the real-time momentary changes in these factors and their relationship to emotional exhaustion experienced by nurses. OBJECTIVES: We aim to analyse how their perceptions of demand, control, effort and reward change according to the task performed through real-time assessment and interact with the emotional exhaustion level of ward nurses...
July 5, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28727917/a-3d-printed-portable-optical-sensing-platform-for-smartphones-capable-of-detecting-the-herbicide-2-4-dichlorophenoxyacetic-acid
#3
Yijia Wang, Mohamed Maarouf Ali Zeinhom, Mingming Yang, Rongrong Sun, Shengfu Wang, Jordan N Smith, Charles Timchalk, Lei Li, Yuehe Lin, Dan Du
Onsite rapid detection of herbicide and herbicide residuals in environmental and biological specimens is important for agriculture, environment, food safety, and health care. Traditional method for herbicide detection requires expensive laboratory equipment and a long turn-round time. In this work, we developed a single-stripe microliter plate smartphone colorimetric device for rapid and low-cost in-field test. This portable smartphone platform is capable of screening 8 samples in a microplate single-stripe...
July 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28727183/a-randomised-controlled-trial-on-a-nurse-led-smartphone-based-self-management-programme-for-patients-with-poorly-controlled-type-2-diabetes-a-study-protocol
#4
Wenru Wang, Betsy Seah, Ying Jiang, Violeta Lopez, Cherry Tan, Suan Tee Lim, Hongliang Ren, Yin Hao Khoo
AIM: To develop and compare a nurse-led smartphone-based self-management programme with an existing nurse-led diabetes service on health-related outcomes for patients with poorly controlled type 2 diabetes in Singapore. BACKGROUND: Over the past decades, Asia has emerged as the 'diabetes epicentre' in the world due to rapid economic development, urbanisation and nutrition transition. There is an urgent need to develop more effective care management strategies in response to this rising diabetes epidemic...
July 20, 2017: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/28726914/3d-printed-smartphone-based-point-of-care-tool-for-fluorescence-and-magnetophoresis-based-cytometry
#5
Stephanie Knowlton, Ashwini Joshi, Philip Syrrist, Ahmet F Coskun, Savas Tasoglu
In developing countries, there are often limited resources available to provide important medical diagnostics, which severely limits our ability to diagnose conditions and administer proper treatment, leading to high mortality rates for treatable conditions. Here, we propose a multiplex tool capable of density-based cell sorting via magnetic focusing in parallel with fluorescence imaging to provide highly specific clinical assays. While many cell sorting techniques and fluorescence microscopes generally are costly and require extensive user training, limiting accessibility and usability in developing countries, this device is compact, low-cost, and portable...
July 20, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28725850/how-can-home-care-patients-and-their-caregivers-better-manage-fall-risks-by-leveraging-information-technology
#6
Dari Alhuwail, Güneş Koru, Eun-Shim Nahm
OBJECTIVES: From the perspectives of home care patients and caregivers, this study aimed to (a) identify the challenges for better fall-risk management during home care episodes and (b) explore the opportunities for them to leverage health information technology (IT) solutions to improve fall-risk management during home care episodes. METHODS: Twelve in-depth semistructured interviews with the patients and caregivers were conducted within a descriptive single case study design in 1 home health agency (HHA) in the mid-Atlantic region of the United States...
December 2016: Journal of patient experience
https://www.readbyqxmd.com/read/28725543/exploring-parents-screen-viewing-behaviours-and-sedentary-time-in-association-with-their-attitudes-toward-their-young-child-s-screen-viewing
#7
Emma Solomon-Moore, Simon J Sebire, Corrie Macdonald-Wallis, Janice L Thompson, Deborah A Lawlor, Russell Jago
Sedentary time and screen-viewing (SV) are associated with chronic disease risk in adults. Parent and child sedentary time and SV are associated. Parents influence children's SV through parenting styles and role modelling. Understanding whether parents' attitudes toward child SV are associated with their own SV and sedentary time will aid development of family interventions to reduce sedentary behaviours. Cross-sectional data with 809 parents from Bristol, UK were collected in 2012-2013 and analysed in 2016...
September 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28725452/mapmysmoke-feasibility-of-a-new-quit-cigarette-smoking-mobile-phone-application-using-integrated-geo-positioning-technology-and-motivational-messaging-within-a-primary-care-setting
#8
Robert S Schick, Thomas W Kelsey, John Marston, Kay Samson, Gerald W Humphris
BACKGROUND: Approximately 11,000 people die in Scotland each year as a result of smoking-related causes. Quitting smoking is relatively easy; maintaining a quit attempt is a very difficult task with success rates for unaided quit attempts stubbornly remaining in the single digits. Pharmaceutical treatment can improve these rates by lowering the overall reward factor of nicotine. However, these and related nicotine replacement therapies do not operate on, or address, the spatial and contextual aspects of smoking behaviour...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/28725015/all-printed-highly-sensitive-2d-mos2-based-multi-reagent-immunosensor-for-smartphone-based-point-of-care-diagnosis
#9
Memoon Sajid, Ahmed Osman, Ghayas Uddin Siddiqui, Hyun Bum Kim, Soo Wan Kim, Jeong Bum Ko, Yoon Kyu Lim, Kyung Hyun Choi
Immunosensors are used to detect the presence of certain bio-reagents mostly targeted at the diagnosis of a condition or a disease. Here, a general purpose electrical immunosensor has been fabricated for the quantitative detection of multiple bio-reagents through the formation of an antibody-antigen pair. The sensors were fabricated using all printing approaches. 2D transition metal dichalcogenide (TMDC) MoS2 thin film was deposited using Electrohydrodynamic atomization (EHDA) on top of an interdigitated transducer (IDT) electrode fabricated by reverse offset printing...
July 19, 2017: Scientific Reports
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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