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https://www.readbyqxmd.com/read/28432913/spontaneously-formed-redox-and-ph-sensitive-polymersomes-by-mpeg-based-cytocompatible-random-copolymers
#1
Partha Laskar, Joykrishna Dey, Sudip Kumar Ghosh
Stimuli-sensitive polymersomes are one of the important vehicles and have been extensively studied as smart drug delivery system. Polymersomes have added advantage over the micelles because of having the ability to carry not only hydrophobic but also hydrophilic guest in their aqueous core. Among various stimuli, the change of pH and redox reaction is very important for drug delivery purpose especially for anticancer drug. Therefore, in this work, two poly(ethylene glycol) methyl ether methacrylate (mPEG) containing hydrophilic random anionic copolymers, poly[(2-hydroxyethyl methacrylate-3,3'-dithiodipropanoic acid)x-co-(poly(ethylene glycol) methyl ether methacrylate)y], poly[(HEMA-DTDPA)x-co-mPEGy] with different copolymer ratios were designed and synthesized...
April 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28431803/reutilization-of-discarded-biomass-for-preparing-functional-polymer-materials
#2
REVIEW
Jianfeng Wang, Wenzhen Qian, Yufeng He, Yubing Xiong, Pengfei Song, Rong-Min Wang
Biomass is abundant and recyclable on the earth, which has been assigned numerous roles to human beings. However, over the past decades, accompanying with the rapid expansion of man-made materials, such as alloy, plastic, synthetic rubber and fiber, a great number of natural materials had been neglected and abandoned, such as straw, which cause a waste of resource and environmental pollution. In this review, based on introducing sources of discarded biomass, the main composition and polymer chains in discarded biomass materials, the traditional treatment and novel approach for reutilization of discarded biomass were summarized...
April 18, 2017: Waste Management
https://www.readbyqxmd.com/read/28431285/two-benzoyl-coumarin-amide-fluorescence-chemosensors-for-cyanide-anions
#3
Zian Wang, Qianqian Wu, Jiale Li, Shuang Qiu, Duxia Cao, Yongxiao Xu, Zhiqiang Liu, Xueying Yu, Yatong Sun
Two new benzoyl coumarin amide derivatives with ortho hydroxyl benzoyl as terminal group have been synthesized. Their photophysical properties and recognition properties for cyanide anions in acetonitrile have also been examined. The influence of electron donating diethylamino group in coumarin ring and hydroxyl in benzoyl group on recognition properties was explored. The results indicate that the compounds can recognize cyanide anions with obvious absorption and fluorescence spectral change and high sensitivity...
April 13, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28430147/suitability-of-strain-gage-sensors-for-integration-into-smart-sport-equipment-a-golf-club-example
#4
Anton Umek, Yuan Zhang, Sašo Tomažič, Anton Kos
Wearable devices and smart sport equipment are being increasingly used in amateur and professional sports. Smart sport equipment employs various sensors for detecting its state and actions. The correct choice of the most appropriate sensor(s) is of paramount importance for efficient and successful operation of sport equipment. When integrated into the sport equipment, ideal sensors are unobstructive, and do not change the functionality of the equipment. The article focuses on experiments for identification and selection of sensors that are suitable for the integration into a golf club with the final goal of their use in real time biofeedback applications...
April 21, 2017: Sensors
https://www.readbyqxmd.com/read/28429003/electrochemical-plasmonic-metamaterials-towards-fast-electro-tuneable-reflecting-nanoshutters
#5
Debabrata Sikdar, Alwin Bucher, Cristian Zagar, Alexei A Kornyshev
Self-assembling arrays of metallic nanoparticles at liquid|liquid or liquid|solid interfaces could deliver new platforms for tuneable optical systems. Such systems can switch between very-high and very-low reflectance states upon assembly and disassembly of nanoparticles at the interface, respectively. This encourages creation of electro-variably reversible mirror/window nanoplasmonic devices. However, the response time of these systems is usually limited by the rate-of-diffusion of the nanoparticles in the liquid, towards the interface and back...
April 21, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28428168/testing-the-feasibility-and-usability-of-a-novel-smartphone-based-self-management-support-system-for-dialysis-patients-a-pilot-study
#6
Aki Hayashi, Satoko Yamaguchi, Kayo Waki, Katsuhito Fujiu, Norio Hanafusa, Takahiro Nishi, Hyoe Tomita, Haruka Kobayashi, Hideo Fujita, Takashi Kadowaki, Masaomi Nangaku, Kazuhiko Ohe
BACKGROUND: Diet and fluid restrictions that need continuous self-management are among the most difficult aspects of dialysis treatment. Smartphone applications may be useful for supporting self-management. OBJECTIVE: Our objective is to investigate the feasibility and usability of a novel smartphone-based self-management support system for dialysis patients. METHODS: We developed the Self-Management and Recording System for Dialysis (SMART-D), which supports self-monitoring of three mortality-related factors that can be modified by lifestyle: interdialytic weight gain and predialysis serum potassium and phosphorus concentrations...
April 20, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28426469/prophylactic-radiotherapy-for-procedure-tract-metastases-in-mesothelioma-a-review
#7
David T Arnold, Amelia O Clive
PURPOSE OF REVIEW: Malignant pleural mesothelioma is an aggressive malignancy with a very poor prognosis. The majority of patients require pleural procedures for diagnostic or fluid management purposes. Damage to the pleura during these procedures can lead to procedure tract metastases (PTMs), with increasing risk from larger interventions. Prophylactic radiotherapy to these sites is a controversial topic with conflicting results from trial data. In this review, we summarize the recent evidence...
April 19, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/28425904/-testing-is-healthy-timeplay-campaign-evaluation-of-sexual-health-promotion-gamification-intervention-targeting-young-adults
#8
Qinya Zhang, Kim J Huhn, Andy Tan, Rachel E Douglas, Helen Guiyun Li, Michelle Murti, Victoria Lee
OBJECTIVES: The objectives of the study were to 1) describe the implementation of the "Testing is Healthy" campaign in four locations in British Columbia (BC) and 2) report process evaluation indicators for the campaign. PARTICIPANTS: Young adults ages 20-29 years, the age group with the highest reported rates of chlamydia and gonorrhea in BC. SETTINGS: Movie theatres located in Langley, Burnaby, Coquitlam and Surrey, which are communities served by the Fraser Health Authority (FHA) in BC...
April 20, 2017: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/28425695/reduced-graphene-oxide-containing-smart-hydrogels-with-excellent-electro-response-and-mechanical-property-for-soft-actuators
#9
Chao Yang, Zhuang Liu, Chen Chen, Kun Shi, Lei Zhang, Xiao-Jie Ju, Wei Wang, Rui Xie, Liang-Yin Chu
A novel reduced graphene oxide/poly(2-acrylamido-2-methylpropane sulfonic acid-co-acrylamide) (rGO/poly(AMPS-co-AAm)) nanocomposite hydrogel that possesses excellent electro-response and mechanical property has been successfully developed. The rGO nanosheets that homogeneously dispersed in the hydrogels could provide prominent conductive platforms for promoting the ion transport inside the hydrogels to generate significant osmotic pressure between the external and internal of such nanocomposite hydrogels. Thus, the electro-responsive rate and degree of the hydrogel for both deswelling and bending performances become rapid and remarkable...
April 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28425557/dual-spectra-band-emissive-eu-2-mn-2-co-activated-alkaline-earth-phosphates-for-indoor-plant-growth-novel-phosphor-converted-leds
#10
Young Jun Yun, Jin Kyu Kim, Ji Young Ju, Seul Ki Choi, Woon Ik Park, Jae Yong Suh, Ha-Kyun Jung, Yongseon Kim, Sungho Choi
This paper reports designing a novel single composition blue/red color illuminating phosphor followed by fabricating "smart" agricultural/horticultural LED lighting. Color-tunable Eu(2+)/Mn(2+) co-activated alkaline earth phosphates, Na(Sr,Ba)PO4 and Ca3Mg3(PO4)4, are considered, and the stable doping sites for the corresponding activators are identified by using first-principle DFT calculations. We can realize the designated color purity with stable thermal quenching preserved luminescence behavior is induced by the Eu(2+) center positioned at different coordination states with intermixed Sr(2+)/Ba(2+) sites in Na(Sr,Ba)PO4 hosts...
April 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28424824/resistin-and-ngal-are-associated-with-inflammatory-response-endothelial-activation-and-clinical-outcomes-in-sepsis
#11
Stephen P J Macdonald, Erika Bosio, Claire Neil, Glenn Arendts, Sally Burrows, Lisa Smart, Simon G A Brown, Daniel M Fatovich
OBJECTIVE AND DESIGN: Resistin and neutrophil gelatinase-associated lipocalin (NGAL) are upregulated in circulating leucocytes in sepsis, but the significance of this is uncertain. We evaluated associations between Resistin and NGAL with endothelial cell activation and clinical outcomes in a prospective observational study in the Emergency Department (ED). METHODS: Serum levels of Resistin, NGAL, inflammatory cytokines (IL-6, IL-10) and soluble endothelial adhesion molecules (VCAM-1, ICAM-1) were measured at defined time points up to 24 h...
April 19, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28423749/monitoring-activities-related-to-medication-adherence-in-ambient-assisted-living-environments
#12
Patrice C Roy, Samina Raza Abidi, Syed Sibte Raza Abidi
A recent trend in healthcare is to motivate patients to self-manage their health conditions in home-based settings. Medication adherence is an important aspect in disease self-management since sub-optimal medication adherence by the patient can lead to serious healthcare costs and discomfort for the patient. In order to alleviate the limitations of self-reported medication adherence, we can use ambient assistive living (AAL) technologies in smart environments. Activity recognition services allow to retrieve self-management information related to medication adherence in a less intrusive way...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28423039/electricity-forecasting-on-the-individual-household-level-enhanced-based-on-activity-patterns
#13
Krzysztof Gajowniczek, Tomasz Ząbkowski
Leveraging smart metering solutions to support energy efficiency on the individual household level poses novel research challenges in monitoring usage and providing accurate load forecasting. Forecasting electricity usage is an especially important component that can provide intelligence to smart meters. In this paper, we propose an enhanced approach for load forecasting at the household level. The impacts of residents' daily activities and appliance usages on the power consumption of the entire household are incorporated to improve the accuracy of the forecasting model...
2017: PloS One
https://www.readbyqxmd.com/read/28422571/reliability-of-measuring-lower-limb-muscle-emg-activity-ratio-in-activities-of-daily-living-with-electrodes-embedded-in-the-clothing
#14
Dagny Bengs, Ira Jeglinsky, Jukka Surakka, Thomas Hellsten, Joachim Ring, Jyrki Kettunen
CONTEXT: Using technical clothes with electrodes embedded in the clothing makes it possible to record the electrical activity produced by the activity of the skeletal muscles in activities of daily living. OBJECTIVE: The aim of the study was to investigate the reliability of measuring lower-limb left-right electromyography (EMG) activity ratio with smart shorts during stair descent, stair ascent, and repeated unloaded squats among healthy working-aged subjects. METHODS: Seventeen females (mean age 25...
April 19, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28421749/design-of-multi-functional-nanogate-in-response-to-multiple-external-stimuli-using-amphiphilic-diblock-copolymer
#15
Kai Huang, Igal Szleifer
Nature uses the interplay between hydrophobic and electrostatic interactions of disordered proteins to orchestrate complicated molecular gate such as the nuclear pore complex to control the transport of biological masses. Inspired by nature, we here theoretically show that well-defined gate shape, sensitive response to pH and salt concentration, and selectivity in cargo transport can be simultaneously achieved by grafting amphiphilic diblock copolymers made of sequence-controlled hydrophobic and ionizable monomers on the inner surface of solid-state nanopore...
April 19, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28420789/structural-and-stereoelectronic-insights-into-oxygenase-catalyzed-formation-of-ethylene-from-2-oxoglutarate
#16
Zhihong Zhang, Tristan J Smart, Hwanho Choi, Florence Hardy, Christopher T Lohans, Martine I Abboud, Melodie S W Richardson, Robert S Paton, Michael A McDonough, Christopher J Schofield
Ethylene is important in industry and biological signaling. In plants, ethylene is produced by oxidation of 1-aminocyclopropane-1-carboxylic acid, as catalyzed by 1-aminocyclopropane-1-carboxylic acid oxidase. Bacteria catalyze ethylene production, but via the four-electron oxidation of 2-oxoglutarate to give ethylene in an arginine-dependent reaction. Crystallographic and biochemical studies on the Pseudomonas syringae ethylene-forming enzyme reveal a branched mechanism. In one branch, an apparently typical 2-oxoglutarate oxygenase reaction to give succinate, carbon dioxide, and sometimes pyrroline-5-carboxylate occurs...
April 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28420679/tumor-microenvironment-targeting-and-responsive-peptide-based-nanoformulations-for-improved-tumor-therapy
#17
Hao Qin, Yanping Ding, Ayeesha Mujeeb, Ying Zhao, Guangjun Nie
Tumor microenvironment participates in all stages of tumor progression and has emerged as a promising therapeutic target for cancer therapy. Rapid progress in the field of molecular self-assembly using various biological molecules has resulted in the fabrication of nanoformulations, specifically targeting and regulating the microenvironment components to inhibit tumor malignancies. This inhibition process is based on the differentiating biophysicochemical cues guiding tumor and normal tissue microenvironments...
April 18, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28420294/smart-recognising-the-value-of-existing-practice-and-introducing-recent-developments-leaving-no-stone-unturned-in-the-assessment-and-treatment-of-the-pdoc-patient
#18
H Gill-Thwaites, K E Elliott, R Munday
Over the last 25 years there have been a number of papers highlighting the issues of high rates of misdiagnosis in prolonged disorders of consciousness (PDOC) (Andrews, K., Murphy, L., Munday, R., & Littlewood, C. (1996). Misdiagnosis of the vegetative state: Retrospective study in a rehabilitation unit. BMJ, 313(7048), 13-16; Childs, N. L., Mercer, W. N., & Childs, H. W. (1993). Accuracy of diagnosis of persistent vegetative state. Neurology, 43(8), 1465-1467). Surprisingly, these rates still remain at the same level despite defined criteria for diagnosis (Schnakers, C...
April 18, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28420257/gestational-diabetes-management-using-smart-mobile-telemedicine
#19
Mercedes Rigla, Iñaki Martínez-Sarriegui, Gema García-Sáez, Belén Pons, Maria Elena Hernando
Gestational diabetes (GDM) burden has been increasing progressively over the past years. Knowing that intrauterine exposure to maternal diabetes confers high risk for macrosomia as well as for future type 2 diabetes and obesity of the offspring, health care organizations try to provide effective control in spite of the limited resources. Artificial-intelligence-augmented telemedicine has been proposed as a helpful tool to facilitate an efficient widespread medical assistance to GDM. The aim of the study we present was to test the feasibility and acceptance of a mobile decision-support system for GDM, developed in the seventh framework program MobiGuide Project, which includes computer-interpretable clinical practice guidelines, access to data from the electronic health record as well as from glucose, blood pressure, and activity sensors...
April 1, 2017: Journal of Diabetes Science and Technology
https://www.readbyqxmd.com/read/28420222/how-sensors-might-help-define-the-external-exposome
#20
REVIEW
Miranda Loh, Dimosthenis Sarigiannis, Alberto Gotti, Spyros Karakitsios, Anjoeka Pronk, Eelco Kuijpers, Isabella Annesi-Maesano, Nour Baiz, Joana Madureira, Eduardo Oliveira Fernandes, Michael Jerrett, John W Cherrie
The advent of the exposome concept, the advancement of mobile technology, sensors, and the "internet of things" bring exciting opportunities to exposure science. Smartphone apps, wireless devices, the downsizing of monitoring technologies, along with lower costs for such equipment makes it possible for various aspects of exposure to be measured more easily and frequently. We discuss possibilities and lay out several criteria for using smart technologies for external exposome studies. Smart technologies are evolving quickly, and while they provide great promise for advancing exposure science, many are still in developmental stages and their use in epidemiology and risk studies must be carefully considered...
April 18, 2017: International Journal of Environmental Research and Public Health
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