keyword
MENU ▼
Read by QxMD icon Read
search

Yttrium

keyword
https://www.readbyqxmd.com/read/28731689/dinuclear-coordination-compounds-based-on-a-5-nitropicolinic-carboxylate-ligand-with-single-molecule-magnet-behavior
#1
Álvaro Raya-Barón, Itziar Oyarzabal, Francisco M Arrabal-Campos, José Manuel Seco, Antonio Rodríguez-Diéguez, Ignacio Fernández
Isostructural dinuclear dysprosium and yttrium coordination compounds based on the 5-nitropicolinic carboxylate ligand were synthesized and characterized. The formation of these air-stable complexes is achieved via solvothermal routes employing water as the reaction solvent. The dysprosium-based complex exhibits single-molecule magnet behavior with frequency dependence of the out-of-phase susceptibility at zero direct-current field. High-resolution mass spectrometry (electrospray ionization) experiments and advanced NMR methods including diffusion NMR techniques were applied on the diamagnetic yttrium analogue and established that these species retained their solid-state structure in solution with hydrodynamic radii of 6...
July 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28725970/ion-release-in-ceramic-bearings-for-total-hip-replacement-results-from-an-in-vitro-and-an-in-vivo-study
#2
Jan Philippe Kretzer, Ulrike Mueller, Marcus R Streit, Hartmuth Kiefer, Robert Sonntag, Robert M Streicher, Joern Reinders
INTRODUCTION: Literature on the potential release of trace elements following implantation of Zirconia-platelet toughened alumina (ZPTA) ceramic components is scant. The present study therefore analysed the in vitro and in vivo potential release of ions from ZPTA bearings. MATERIAL AND METHODS: An in vitro and in vivo study was conducted. The in vitro study compared leaching in bovine serum from two groups: ZPTA ceramic heads and Co-28Cr-6Mo alloy heads, both 28-mm diameter...
July 20, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28725000/trivalent-y-3-ionic-sensor-development-based-on-e-methyl-n-nitrobenzylidene-benzenesulfonohydrazide-mnbbsh-derivatives-modified-with-nafion-matrix
#3
Mohammad Musarraf Hussain, Mohammed M Rahman, Muhammad Nadeem Arshad, Abdullah M Asiri
(E)-Methyl-N'-nitrobenzylidene-benzenesulfonohydrazide (MNBBSH) compounds were synthesized using a condensation procedure from the derivatives of nitrobenzaldehyde and 4-Methyl-benzenesulfonylhydrazine, which crystallized in ethanol and methanol as well as characterized by FTIR, UV-Vis, (1)H-NMR, and (13)C-NMR. MNBBSH structure was confirmed using a single crystal X-ray diffraction technique and used for the detection of selective yttrium ion (Y(3+)) by I-V system. A thin layer of MNBBSH was deposited onto a glassy carbon electrode (GCE) with 5% nafion for the sensitive and selective Y(3+) sensor...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28721613/comparative-toxicity-of-seven-rare-earth-elements-in-sea-urchin-early-life-stages
#4
Marco Trifuoggi, Giovanni Pagano, Marco Guida, Anna Palumbo, Antonietta Siciliano, Maria Gravina, Daniel M Lyons, Petra Burić, Maja Levak, Philippe J Thomas, Antonella Giarra, Rahime Oral
The widespread use of rare earth elements (REEs) in a number of technological applications raises unanswered questions related to REE-associated adverse effects. We have previously reported on the multiple impact of some REEs on the early life stages of the sea urchin Paracentrotus lividus. The present investigation was to evaluate REE toxicity to early life stages in two unrelated sea urchin species, Sphaerechinus granularis and Arbacia lixula. The comparative toxicities were tested of seven REEs, namely yttrium, lanthanum, cerium, neodymium, samarium, europium and gadolinium as chloride salts at concentrations ranging from 10(-7) to 10(-4) M...
July 18, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28720753/ferromagnetic-resonance-revised-electrodynamic-approach
#5
Jerzy Krupka, Pavlo Aleshkevych, Bartlomiej Salski, Pawel Kopyt, Adam Pacewicz
Resonance in a ferromagnetic sphere, known in the body of literature as the mode of uniform precession, has recently been proven to be magnetic plasmon resonance (MPR). This finding has prompted research which is presented in this paper on the relation between the Q-factor at the MPR and the ferromagnetic resonance (FMR) linewidth ΔH, which is a parameter of magnetized gyromagnetic materials. It is proven in this paper that ΔH can be unequivocally determined from the Q-factor measured at the MPR, if all losses in the resonance system are properly accounted for...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28710733/assessing-the-chemical-behavior-and-spatial-distribution-of-yttrium-and-rare-earth-elements-yrees-in-a-coastal-aquifer-adjacent-to-the-urmia-hypersaline-lake-nw-iran
#6
Nassim Sohrabi, Nasrollah Kalantari, Vahab Amiri, Mohammad Nakhaei
This study aims to shed light on the seasonal behavior of yttrium and rare earth elements (YREEs) in the Urmia Aquifer (UA), in the immediate vicinity of Urmia Lake (UL) in Iran. Samples of groundwater, collected under dry and wet conditions in coastal wells of UA, suggest a large degree of variability in both YREE abundance and normalized patterns. Although weathering or water-rock interactions (between the surface/groundwater and rock samples) were predicted to be the most probable source in explaining YREEs in groundwater samples, results to the contrary indicate that the groundwater do not inherit aquifer rock-like YREE signatures in the study area; this might be due to the relative stability of YREEs during the process of water-rock interactions, which suggest that methods based on YREEs can be beneficial in discrimination of water sources...
July 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28710204/bio-plex-immunoassay-measuring-the-quantity-of-lysosomal-n-acetylgalactosamine-6-sulfatase-protein-in-dried-blood-spots-for-the-screening-of-mucopolysaccharidosis-iva-in-newborn-a-pilot-study
#7
Chih-Kuang Chuang, Hsiang-Yu Lin, Tuan-Jen Wang, Sung-Fa Huang, Shuan-Pei Lin
OBJECTIVE: Mucopolysaccharidosis (MPS) IVA (Morquio syndrome A) is an autosomal-recessive lysosomal storage disorder caused by the deficiency of N-acetylgalactosamine-6-sulfatase (GALNS) resulting in excessive lysosomal storage of keratan sulfate. Treatments for MPS IVA have recently become available with optimal outcomes associated with early diagnosis and treatment which can be achieved by newborn screening. DESIGN: Newborn screening programme for MPS IVA pilot study...
July 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28708079/comparison-of-erosion-behavior-and-particle-contamination-in-mass-production-cf%C3%A2-o%C3%A2-plasma-chambers-using-y%C3%A2-o%C3%A2-and-yf%C3%A2-protective-coatings
#8
Tzu-Ken Lin, Wei-Kai Wang, Shih-Yung Huang, Chi-Tsung Tasi, Dong-Sing Wuu
Yttrium fluoride (YF₃) and yttrium oxide (Y₂O₃) protective coatings prepared using an atmospheric plasma spraying technique were used to investigate the relationship between surface erosion behaviors and their nanoparticle generation under high-density plasma (10(12)-10(13) cm(-3)) etching. As examined by transmission electron microscopy, the Y₂O₃ and YF₃ coatings become oxyfluorinated after exposure to the plasma, wherein the yttrium oxyfluoride film formation was observed on the surface with a thickness of 5...
July 14, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28700244/targeted-yttrium-89-doxorubicin-drug-eluting-bead-a-safety-and-feasibility-pilot-study-in-a-rabbit-liver-cancer-model
#9
Johannes M Ludwig, Minzhi Xing, Yongkang Gai, Lingyi Sun, Dexing Zeng, Hyun S Kim
PURPOSE: To evaluate feasibility and safety of the cancer targeting (Radio)-Chemoembolization drug eluting bead (TRCE-DEB) concept drug SW43-DOX-L-NETA(89Y) DEB for the intra-arterial treatment of VX2 rabbit liver tumors. The treatment compound comprises of the Sigma-2 receptor ligand SW43 for cancer targeting, Doxorubicin (DOX), and 89Yttrium (89Y) as non-radioactive surrogate for therapeutic (Yttrium-90, Lutetium-177) and imaging (Yttrium-86) radioisotopes via the chelator L-NETA. MATERIAL AND METHODS: Ten New Zealand white rabbits with VX2 tumor allografts were used...
July 12, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28691887/effects-of-an-erbium-yttrium-aluminum-garnet-er-yag-laser-and-an-ultrasonic-scaler-on-tio2-coated-titanium-surfaces-contaminated-with-subgingival-plaque-an-in-vitro-study-to-assess-post-treatment-biocompatibility-to-osteogenic-cells
#10
Marco Giannelli, Daniele Bani, Alessia Tani, Fabrizio Materassi, Flaminia Chellini, Chiara Sassoli
BACKGROUND: We evaluated the effects of conventional ultrasonic scaler vs. Er-YAG laser on titanium surfaces contaminated with subgingival plaque from peri-implantitis patients in terms of: plaque and bio-corroded titanium oxide coating removal; surface change induction; residual biocompatibility towards osteoblasts. METHODS: Subgingival plaque-coated titanium discs with moderately rough surface were fixed with ethanol and treated with ultrasonic scaler (metal tip) or Er-YAG laser (20...
July 10, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28690515/a-case-of-facial-partial-unilateral-lentiginosis-treated-with-low-fluence-1-064-nm-q-switched-neodymium-doped-yttrium-aluminum-garnet-laser
#11
En Hyung Kim
Partial unilateral lentiginosis (PUL) is an unusual pigmentary disorder characterized by numerous lentigines grouped within an area of normal skin. Although treatment is not necessary, many patients with facial PUL seek medical help for cosmetic reasons. There is no established standard treatment for PUL. Conventional lasers may cause postinflammatory hyperpigmentation because keratinocytes are injured during the process. Also, scarring, long downtime, and pain are important issues. A 19-year-old patient with facial PUL was successfully treated with low-fluence 1,064-nm Q-switched neodymium-doped yttrium aluminum garnet (QS Nd:YAG) laser...
May 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28689934/single-center-comparison-of-overall-survival-and-toxicities-in-patients-with-infiltrative-hepatocellular-carcinoma-treated-with-yttrium-90-radioembolization-or-drug-eluting-embolic-transarterial-chemoembolization
#12
Joseph L McDevitt, Ali Alian, Baljendra Kapoor, Stacy Bennett, Amanjit Gill, Abraham Levitin, Mark Sands, K V Narayanan Menon, Federico N Aucejo, Bassam Estfan, Anil K Pillai, Sanjeeva P Kalva, Gordon McLennan
PURPOSE: To compare overall survival and toxicities after yttrium-90 ((90)Y) radioembolization and chemoembolization with drug-eluting embolics (DEE) in patients with infiltrative hepatocellular carcinoma (HCC). MATERIALS AND METHODS: Retrospective review of 50 patients with infiltrative HCC without main portal vein invasion who were treated with (90)Y radioembolization (n = 26) or DEE chemoembolization (n = 24) between March 2007 and August 2012 was completed...
July 6, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28685832/assessment-of-genotoxicity-and-biodistribution-of-nano-and-micron-sized-yttrium-oxide-in-rats-after-acute-oral-treatment
#13
Archana Panyala, Srinivas Chinde, Srinivas Indu Kumari, Paramjit Grover
The increasing use of yttrium oxide (Y2 O3 ) nanoparticles (NPs) entails an improved understanding of their potential impact on the environmental and human health. In the present study, the acute oral toxicity of Y2 O3 NPs and their microparticles (MPs) was carried out in female albino Wistar rats with 250, 500 and 1000 mg kg(-1) body weight doses. Before the genotoxicity evaluation, characterization of the particles by transmission electron microscopy, dynamic light scattering and laser Doppler velocimetry was performed...
July 7, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28685382/safety-and-efficacy-of-transarterial-radioembolisation-in-patients-with-intermediate-or-advanced-stage-hepatocellular-carcinoma-refractory-to-chemoembolisation
#14
Elisabeth G Klompenhouwer, Raphaëla C Dresen, Chris Verslype, Annouschka Laenen, Gert De Hertogh, Christophe M Deroose, Lawrence Bonne, Vincent Vandevaveye, Geert Maleux
INTRODUCTION: Transarterial chemoembolisation (TACE) is the most widely used locoregional treatment for patients with an unresectable hepatocellular carcinoma (HCC). Transarterial radioembolisation (TARE) with yttrium-90 containing microspheres is an emerging interventional treatment that could be complementary or an alternative to TACE. AIM: To evaluate the safety and efficacy of TARE in patients with HCC who are refractory to TACE with drug-eluting beads (DEB-TACE)...
July 6, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28685201/longitudinal-changes-in-erectile-function-after-thulium-yag-prostatectomy-for-the-treatment-of-benign-prostatic-obstruction-a-1-year-follow-up-study
#15
Jae Seung Chung, Sang Hyun Park, Cheol Kyu Oh, Seong Cheol Kim, Taek Sang Kim, Pil Moon Kang, Won Ik Seo, Wan Seok Kim, Jang Ho Yoon, Dong Ii Kang, Kweon Sik Min, Jae Ii Chung
This study aimed to evaluate the impact of thulium:yttrium-aluminum-garnet (Tm:YAG) (RevoLix®) laser prostatectomy for the treatment of benign prostatic obstructions on erectile function (EF). A total of 208 patients who underwent Tm:YAG laser prostatectomies participated in this study. All cases were evaluated preoperatively and at 3, 6, and 12 months postoperatively using the International Prostate Symptom Score (IPSS), quality of life (QoL) score, and the International Index of Erectile Function (IIEF-5) questionnaires...
July 6, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28685003/magnetization-reversal-in-yig-ggg-111-nanoheterostructures-grown-by-laser-molecular-beam-epitaxy
#16
Boris B Krichevtsov, Sergei V Gastev, Sergey M Suturin, Vladimir V Fedorov, Alexander M Korovin, Viktor E Bursian, Alexander G Banshchikov, Mikhail P Volkov, Masao Tabuchi, Nikolai S Sokolov
Thin (4-20 nm) yttrium iron garnet (Y3Fe5O12, YIG) layers have been grown on gadolinium gallium garnet (Gd3Ga5O12, GGG) 111-oriented substrates by laser molecular beam epitaxy in 700-1000 °C growth temperature range. The layers were found to have atomically flat step-and-terrace surface morphology with step height of 1.8 Å characteristic for YIG(111) surface. As the growth temperature is increased from 700 to 1000 °C the terraces become wider and the growth gradually changes from layer by layer to step-flow regime...
2017: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/28682792/performance-of-a-high-resolution-depth-encoding-pet-detector-using-barium-sulfate-reflector
#17
Zhonghua Kuang, Xiaohui Wang, Cheng Li, Xinhan Deng, Kai Feng, Zhanli Hu, Xin Fu, Ning Ren, Xianming Zhang, Yunfei Zheng, Dong Liang, Xin Liu, Hairong Zheng, Yongfeng Yang
Small animal positron emission tomography (PET) is a well-established imaging modality in preclinical biomedical research. The performance of current small animal PET scanners is mainly limited by the detector performance and depth-encoding detectors are required to simultaneously achieve high spatial resolution and high sensitivity. In this work, the performance of a high-resolution dual-ended readout lutetium-yttrium oxyorthosilicate (LYSO) array using barium sulfate powder (BaSO4) as the inter-crystal reflector was measured for the first time and compared to that of a LYSO array using the most commonly used enhanced specular reflector (ESR)...
July 6, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28682146/treatment-of-caf%C3%A3-au-lait-macules-with-a-high-fluenced-1-064-nm-q-switched-neodymium-yttrium-aluminum-garnet-laser
#18
Jiehoon Kim, Hoon Hur, Yu Ri Kim, Sung Bin Cho
Café-au-lait macules (CALMs) are light to dark brown macules or patches of increased melanin concentration found along the dermoepidermal junction. Although many attempts to treat CALMs using various kinds of laser/light-based devices have been reported, CALMs remain refractory thereto with high recurrence rates. In this case series, we describe four patients with idiopathic CALMs that were effectively and safely treated with a non-ablative, high-fluenced, Q-switched (QS), 1,064-nm neodymium:yttrium aluminum garnet (Nd:YAG) laser...
July 6, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28677067/intra-arterial-therapy-of-neuroendocrine-tumour-liver-metastases-comparing-conventional-tace-drug-eluting-beads-tace-and-yttrium-90-radioembolisation-as-treatment-options-using-a-propensity-score-analysis-model
#19
Duc Do Minh, Julius Chapiro, Boris Gorodetski, Qiang Huang, Cuihong Liu, Susanne Smolka, Lynn Jeanette Savic, David Wainstejn, MingDe Lin, Todd Schlachter, Bernhard Gebauer, Jean-François Geschwind
OBJECTIVES: To compare efficacy, survival outcome and prognostic factors of conventional transarterial chemoembolisation (cTACE), drug-eluting beads TACE (DEB-TACE) and yttrium-90 radioembolisation (Y90) for the treatment of liver metastases from gastroenteropancreatic (GEP) neuroendocrine tumours (NELM). METHODS: This retrospective analysis included 192 patients (58.6 years mean age, 56% men) with NELM treated with cTACE (N = 122), DEB-TACE (N = 26) or Y90 (N = 44) between 2000 and 2014...
July 4, 2017: European Radiology
https://www.readbyqxmd.com/read/28674968/recommendations-for-radioembolisation-after-liver-surgery-using-yttrium-90-resin-microspheres-based-on-a-survey-of-an-international-expert-panel
#20
Morsal Samim, Linde M van Veenendaal, Manon N G J A Braat, Andor F van den Hoven, Richard Van Hillegersberg, Bruno Sangro, Yung Hsiang Kao, Dave Liu, John D Louie, Daniel Y Sze, Steven C Rose, Daniel B Brown, Hojjat Ahmadzadehfar, Edward Kim, Maurice A A J van den Bosch, Marnix G E H Lam
INTRODUCTION: Guidelines on how to adjust activity in patients with a history of liver surgery who are undergoing yttrium-90 radioembolisation ((90)Y-RE) are lacking. The aim was to study the variability in activity prescription in these patients, between centres with extensive experience using resin microspheres (90)Y-RE, and to draw recommendations on activity prescription based on an expert consensus. METHODS: The variability in activity prescription between centres was investigated by a survey of international experts in the field of (90)Y-RE...
July 3, 2017: European Radiology
keyword
keyword
33485
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"