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https://www.readbyqxmd.com/read/28230060/flower-like-superstructures-of-aie-active-tetraphenylethylene-through-solvophobic-controlled-self-assembly
#1
Mina Salimimarand, Duong Duc La, Mohammad Al Kobaisi, Sheshanath V Bhosale
The development of well-organized structures with high luminescent properties in the solid and aggregated states is of both scientific and technological interest due to their applications in nanotechnology. In this paper we described the synthesis of amphiphilic and dumbbell shaped AIE-active tetraphenylethylene (TPE) derivatives and studied their self-assembly with solvophobic control. Interestingly, both TPE derivatives form a 3D flower-shape supramolecular structure from THF/water solutions at varying water fractions...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28225341/patterns-of-drug-resistance-among-patients-with-tuberculous-pleural-effusion-in-greece
#2
V Anastasakos, V Skouras, C Moschos, S Tsikrika, S Karabela, I Marinou, E Vogiatzakis, K Konstantinou, A Papavasiliou, I Kalomenidis
SETTING: Data on the relationship between pleural tuberculosis (TB) and anti-tuberculosis drug resistance are scarce. OBJECTIVE: To determine the patterns of drug resistance among pleural Mycobacterium tuberculosis isolates in Greece and the incidence of tuberculous pleural effusion (TPE) among patients with multidrug-resistant (MDR) or extensively drug-resistant (XDR) pulmonary TB. DESIGN: Drug susceptibility testing (DST) results recorded in the database of the National Reference Centre for Tuberculosis in Athens, Greece, over a 9-year period (2003-2011) were reviewed...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28225213/a-dual-organic-transistor-based-tactile-perception-system-with-signal-processing-functionality
#3
Yaping Zang, Hongguang Shen, Dazhen Huang, Chong-An Di, Daoben Zhu
Organic-device-based tactile-perception systems can open up new opportunities for the next generation of intelligent products. To meet the critical requirements of artificial perception systems, the efficient construction of organic smart elements with integrated sensing and signal processing functionalities is highly desired, but remains a challenge. This study presents a dual-organic-transistor-based tactile-perception element (DOT-TPE) with biomimetic functionality by the construction of organic synaptic transistors with integrated sensing transistors...
February 22, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28217826/in-vivo-comparison-of-two-navigation-systems-for-abdominal-percutaneous-needle-intervention
#4
Deqiang Xiao, Yong Li, Huoling Luo, Yanfang Zhang, Xuejun Guo, Huimin Zheng, Qingmao Hu, Fucang Jia
PURPOSE: To compare the accuracy of a Kinect-Optical navigation system with an electromagnetic (EM) navigation system for percutaneous liver needle intervention. MATERIALS AND METHODS: Five beagles with nine artificial tumors were used for validation. The Veran IG4 EM navigation system and a custom-made Kinect-Optical navigation system were used. Needle insertions into each tumor were conducted with these two guidance methods. The target positioning error (TPE) and the time cost of the puncture procedures were evaluated...
February 20, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28208261/construction-of-aiegens-based-bioprobe-with-two-fluorescent-signals-for-enhanced-monitor-of-extracellular-and-intracellular-telomerase-activity
#5
Yuan Zhuang, Chunli Shang, Xiaoding Lou, Fan Xia
Detections of telomerase activity in vitro and in living cells are of great importance for clinical diagnosis of cancer. In this work, an AIEgens-based bioprobe with two fluorescent signals for enhanced monitor of extracellular and intracellular telomerase activity is designed. After addition of telomerase, two positively charged AIEgens (Silole-R and TPE-H) bind to quencher group labeled primer (QP) and the extension repeated units, leading enhancement of two telomerase-triggered fluorescent signals. Furthermore, by combination the wider linear range in vitro and lower background in living cells imaging, the bioprobe is used to detect telomerase extracted from various cell lines (MCF-7, HeLa, E-J, and HLF), 50 bladder cancer patients' urine samples, 10 normal people's urine samples, and also applied in mapping telomerase activity inside living cells (MCF-7, HeLa, MDA-MB-231, and HT1080)...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28198995/tropical-pulmonary-eosinophilia-effect-of-addition-of-corticosteroids-after-failure-of-diethylcarbamazine-therapy
#6
Manu Madan, Pawan Gupta, Richa Mittal, Sunil K Chhabra
Successful response in diethylcarbamazine (DEC) therapy in tropical pulmonary eosinophilia (TPE) is not universal with a 20-40% failure rates in chronic cases. Corticosteroids have been used in such patients. However, their role in management remains ill-defined. A patient of TPE with incomplete clinical, haematological and physiological response to a standard 3 weeks DEC therapy received additional corticosteroids for the next two cycles, after which complete remission occurred. However, there was a relapse two months later with evidence of a chronic state requiring further treatment with corticosteroids with good response...
2017: Adv Respir Med
https://www.readbyqxmd.com/read/28194065/adverse-events-during-apheresis-procedures-audit-at-a-tertiary-hospital
#7
Kanchan Dogra, Parag Fulzele, Diptiranjan Rout, Rahul Chaurasia, Poonam Coshic, Kabita Chatterjee
Apheretic platelets are better quality blood components which reduce donor exposure and chances of TTIs to transfusion recipients when compared to the whole blood derived components. Though safe, these apheretic donations are associated with donor adverse events. We evaluated the incidence of such adverse events associated with the modern apheresis procedures that would provide an insight as well as help formulating preventive steps to avoid frequent occurrences of such events. This prospective audit-based observational study was conducted over 1 year...
March 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28194064/therapeutic-plasma-exchange-in-patients-with-neurologic-disorders-review-of-63-cases
#8
Anil Tombak, Mehmet Ali Uçar, Aydan Akdeniz, Arda Yilmaz, Hakan Kaleagası, Mehmet Ali Sungur, Eyup Naci Tiftik
Therapeutic plasma exchange (TPE) is a procedure that reduces circulating autoantibodies of the patients. TPE is commonly used in neurological disorders where autoimmunity plays a major role. We report our experience with regard to the indications, adverse events and outcomes of plasma exchange in neurological disorders. Sixty-three patients were included to this retrospective study. Median age was 48 years (range 1-85), there was a predominance of males. Neurological indications included Guillain-Barrè syndrome (n = 22), myasthenia gravis (n = 21), chronic inflammatory demyelinating polyneuropathy (n = 7), polymyositis (n = 3), multifocal motor neuropathy (n = 2), acute disseminated encephalomyelitis (n = 2), neuromyelitis optica (n = 2), multiple sclerosis (n = 2), limbic encephalitis (n = 1) and transverse myelitis (n = 1)...
March 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28188006/changes-in-hemostasis-caused-by-different-replacement-fluids-and-outcome-in-therapeutic-plasma-exchange-in-pediatric-patients-in-a-retrospective-single-center-study
#9
REVIEW
Volker Witt, Herbert Pichler, Elisabeth Beiglboeck, Friedrich Kursten, Lisa Weidner
BACKGROUND: Therapeutic plasma exchange (TPE) is a generally accepted and frequently performed procedure for numerous therapeutic indications in adults. Slowly, TPE is also becoming more and more popular in the treatment of pediatric patients. Although, we know that TPE is safe in pediatric patients, the outcome of children treated with TPE is rarely reported. Furthermore, there are only general recommendations regarding the plasma replacement fluid for children and these are adopted from adults...
January 19, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28181319/high-efficiency-perovskite-solar-cells-based-on-new-tpe-compounds-as-hole-transport-materials-role-of-2-7-and-3-6-substituted-carbazole-derivatives
#10
Linna Zhu, Yahan Shan, Rui Wang, Debei Liu, Cheng Zhong, Qunliang Song, Fei Wu
In this work, four tetraphenylethylene (TPE) centered hole transport materials (HTMs), with 2,7- or 3,6-substituted carbazole derivatives as periphery groups are deliberately synthesized and characterized. Their photophysical properties, energy levels and photovoltaic performances are systematically investigated, and their performances as HTMs are discussed with respect to the different substituent positions on carbazole moiety. It is interesting to find that the TPE-based HTMs with 2,7-carbazole substituents rival the 3,6-carbazole substituents in hole mobility and hole extraction ability...
February 8, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28174768/liquefaction-induced-emission-enhancement-of-tetraphenylethene-derivatives
#11
Takashi Machida, Ryosuke Taniguchi, Tsuyoshi Oura, Kazuki Sada, Kenta Kokado
A typical AIE dye, TPE, was liquefied by attaching long and branched alkyl chains. The obtained liquid dye showed intense emission compared to the solid dye or TPE. The linkage between TPE and the alkyl chain led to significant difference in their photoluminescent and thermal properties.
February 8, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28169813/analyse-des-%C3%A2-%C3%A2-pratiques-effectives%C3%A2-%C3%A2-des-formateurs-en-%C3%A3-ducation-th%C3%A3-rapeutique-du-patient
#12
Delphine Ballet
<ce:para>Introduction : development of Therapeutic Patient Education (TPE) incites healthcare professionals to introduce in their pratices an educational dimension.</ce:para><ce:para>Objective : existing few works on the « effective » practices of the TPE trainers, this exploratory research aims at giving a perspective on what cancharacterize their pratices in teaching situation.</ce:para><ce:para>Method : by taking support on the workson teaching pratices observation in Educational sciences, several sessions of TPE were observed, recorded and analysed by focusing on the forms and the contents of the verbal interactions near the trainers...
October 27, 2016: Recherche en Soins Infirmiers
https://www.readbyqxmd.com/read/28169473/fluorescence-detection-of-microcapsule-type-self-healing-based-on-aggregation-induced-emission
#13
Young Kyu Song, Beomjin Kim, Tae Hee Lee, Jin Chul Kim, Joon Hyun Nam, Seung Man Noh, Young Il Park
An extrinsic self-healing coating system containing tetraphenylethylene (TPE) in microcapsules was monitored by measuring aggregation-induced emission (AIE). The core healing agent comprised of methacryloxypropyl-terminated polydimethylsiloxane, styrene, benzoin isobutyl ether, and TPE was encapsulated in a urea-formaldehyde shell. The photoluminescence of the healing agent in the microcapsules was measured that the blue emission intensity dramatically increased and the storage modulus also increased up to 10(5) Pa after the photocuring...
February 7, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28155734/-contribution-of-therapeutic-patient-education-to-addiction-medicine
#14
Xavier de la Tribonnière, Jean-Marc Jacquet, Johann Vidal, Hélène Donnadieu Rigole
TPE can improve the efficacy of addiction medicine, for the benefit of patients and staff. It can help the patient withdraw from addiction, or at least achieve a better quality of life with this chronic condition.</ce:para>.
November 25, 2016: Santé Publique: Revue Multidisciplinaire Pour la Recherche et L'action
https://www.readbyqxmd.com/read/28140561/highly-efficient-supramolecular-aggregation-induced-emission-active-pseudorotaxane-luminogen-for-functional-bioimaging
#15
Sing Shy Liow, Hui Zhou, Sigit Sugiarto, Shifeng Guo, Madhavi Latha S Chalasani, Navin Kumar Verma, Jianwei Xu, Xian Jun Loh
The direct tracking of cells using fluorescent dyes is a constant challenge in cell therapy due to aggregation-induced quenching (ACQ) effect and biocompatibility issues. Here, we demonstrate the development of a biocompatible and highly efficient aggregation-induced emission (AIE)-active pseudorotaxane luminogen based on tetraphenylethene conjugated poly(ethylene glycol) (TPE-PEG2) (guest) and α-cyclodextrin (α-CD) (host). It is capable of showing significant fluorescent emission enhancement at the 400-600 nm range when excited at 388 nm, without increasing the concentration of AIE compound...
February 20, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28128484/turn-on-fluorescence-in-tetra-nhc-ligands-by-rigidification-through-metal-complexation-an-alternative-to-aggregation-induced-emission
#16
Narayan Sinha, Linda Stegemann, Tristan T Y Tan, Nikos L Doltsinis, Cristian A Strassert, F Ekkehardt Hahn
Two tetraphenylethylene (TPE) bridged tetraimidazolium salts, [H4 L-Et](PF6 )4 and [H4 L-Bu](PF6 )4 , were used as precursors for the synthesis of the dinuclear Ag(I) and Au(I) tetracarbene complexes [Ag2 (L-Et)](PF6 )2 , [Ag2 (L-Bu)](PF6 )2 , [Au2 (L-Et)](PF6 )2 , and [Au2 (L-Bu)](PF6 )2 . The tetraimidazolium salts show almost no fluorescence (ΦF <1 %) in dilute solution while their NHC complexes display fluorescence "turn-on" (ΦF up to 47 %). This can be ascribed to rigidification mediated by the restriction of intramolecular rotation within the TPE moiety upon complexation...
March 1, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28121344/impact-of-myocardial-blush-grade-on-tpe-interval-and-tpe-qt-ratio-after-successful-primary-percutaneous-coronary-intervention-in-patients-with-st-elevation-myocardial-infarction
#17
P T Duyuler, S Duyuler, M Demir
INTRODUCTION: Myocardial perfusion, when assessed by myocardial blush grade (MBG) is an independent predictor of major adverse cardiac outcomes. The terminal part of repolarization, measured as the interval from the peak to the end of the T wave (Tpe), is a relatively novel indicator of ventricular arrhythmias. The relations between MBG and Tpe interval have not been examined before. We aimed to evaluate the relationship between MBG and Tpe and Tpe/QT ratio after successful primary percutaneous coronary intervention (PCI) in acute ST-segment elevation myocardial infarction (STEMI)...
January 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28119750/mycobacterium-tuberculosis-esat6-and-cpf10-induce-adenosine-deaminase-2-mrna-expression-in-monocyte-derived-macrophages
#18
Mi Jung Bae, Suyeon Ryu, Ha-Jeong Kim, Seung Ick Cha, Chang Ho Kim, Jaehee Lee
BACKGROUND: Delayed hypersensitivity plays a large role in the pathogenesis of tuberculous pleural effusion (TPE). Macrophages infected with live Mycobacterium tuberculosis (MTB) increase the levels of adenosine deaminase2 (ADA2) in the pleural fluid of TPE patients. However, it is as yet unclear whether ADA2 can be produced by macrophages when challenged with MTB antigens alone. This study therefore evaluated the levels of ADA2 mRNA expression, using monocyte-derived macrophages (MDMs) stimulated with MTB antigens...
January 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28113228/variability-of-ventricular-repolarization-dispersion-quantified-by-time-warping-the-morphology-of-the-t-waves
#19
Julia Ramirez, Michele Orini, Derek Tucker, Esther Pueyo, Pablo Laguna
: We propose two electrocardiogram (ECG)-derived markers of T-wave morphological variability in the temporal, dw , and amplitude, da , domains. Two additional markers, d(NL)w and d(NL)a , restricted to measure the non-linear information present within dw and da are also proposed. METHODS: We evaluated the accuracy of the proposed markers in capturing T-wave time and amplitude variations in 3 situations: (1) In a simulated set up with presence of additive Laplacian noise, (2) when modifying the spatio-temporal distribution of electrical repolarization with an electro-physiological cardiac model and (3) in ECG records from healthy subjects undergoing a tilt table test...
October 4, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28110841/treatment-of-autoimmune-thrombotic-thrombocytopenic-purpura-in-the-more-severe-forms
#20
REVIEW
Paul Coppo
Daily therapeutic plasma exchange (TPE) transformed the historically fatal prognosis of acquired, anti-ADAMTS13 antibody-mediated thrombotic thrombocytopenic purpura (TTP), leading to the current overall survival rates of >80%. However, relapses occur in up to 40% of patients and refractory disease with fatal outcomes still occurs. In this context, the introduction of rituximab has probably been the second major breakthrough in TTP management. Rituximab is now routinely recommended during the acute phase, typically in patients with a suboptimal response to treatment, or even as frontline therapy, with high response rates...
December 30, 2016: Transfusion and Apheresis Science
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