Physical, optical and morphological studies of V2O5 doped zinc lead lithium phosphate (ZnPbLiP) glasses

Publication date: Available online 16 November 2019Source: Materials Today: ProceedingsAuthor(s): Vijay Kumar Chavan, M. SreenivasuluAbstractVanadium ion doped zinc lead lithium phosphate glass samples are prepared by melt quench method. X-ray diffraction studies confirmed the amorphous nature of all the prepared glasses. The density and refractive index values of these glasses are evaluated using the Archimedes method and Abbe’s refractometer respectively. The values of density found to be in between 3.6363 and 3.6666 g/cm3. The refractive index values are observed in the range 1.5605–1.5620. An increasing trend has been observed in density and refractive index from the simultaneous variation of Li2CO3 and V2O5 in the host matrix. Optical absorption spectra of these samples exhibited two absorption bands at 548 and 738 nm which indicate the characteristic absorption peaks of V4+ ions. The optical basicity values of the studied glasses V1–V5 are identified to slightly vary from 0.6736 to 0.6718, which represents electron donor ability of oxide ions to the cations. The knowledge on optical basicity finds immediate applications in the design of the novel optical functional materials like polarizers, detectors and modulators with higher optical performance. The morphological variations have been observed in the studied glasses upon doping of V2O5 by using Scanning Electron Microscopy.
Source: Materials Today: Proceedings - Category: Materials Science Source Type: research

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Source: Expert Review of Neurotherapeutics - Category: Neurology Tags: Expert Rev Neurother Source Type: research
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Source: Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology - Category: ENT & OMF Source Type: research
Publication date: Available online 13 December 2019Source: Journal of Cranio-Maxillofacial SurgeryAuthor(s): Qing-Xiang Li, Rong Yang, Yi-Fei Wang, Hong-Fang Sun, Hai-Bo Wang, Hao Liu, Yu-Xing Guo, Chuan-Bin GuoSummaryIn spite of the many imaging modalities used in clinics, the one that best reflects the true delineation of skull-base (infratemporal fossa, ITF) malignancies is still unknown. In order to compare the tumor recognition capabilities of different imaging modalities, established murine models and patients with skull-base tumors were evaluated by computer tomography (CT), magnetic resonance (MR) imaging, and fluo...
Source: Journal of Cranio Maxillofacial Surgery - Category: ENT & OMF Source Type: research
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Source: The Journal of Prosthetic Dentistry - Category: Dentistry Source Type: research
Publication date: Available online 13 December 2019Source: The Journal of Prosthetic DentistryAuthor(s): Yukihiro Takeda, Jessica Lau, Hesham Nouh, Hiroshi HirayamaAbstractDigitally fabricated dentures allow clinicians to provide new prostheses for edentulous patients in an efficient manner. One approach uses a replication technique where a prosthesis in need of minor alterations is used as a basis for the definitive prosthesis. Compared with conventional duplication techniques, this method allows for the predictable fabrication of accurate dentures in less time and with increased quality. In this clinical report, int...
Source: The Journal of Prosthetic Dentistry - Category: Dentistry Source Type: research
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Source: The Journal of Prosthetic Dentistry - Category: Dentistry Source Type: research
This study reveals an important mechanism of performance fading of Li–O2 battery and develops an efficient approach to increase the cycle life, which has thrown new insight into the design and construction of Li–O2 batteries with long lifespan.Graphical abstractA thorough investigation on the effects of CO2 accumulation during cycling of a Li–O2 battery employing RuO2/rGO cathode leads to realize a strategy to preload CO2 absorbent (CaO) into the battery, which has prolonged significantly the cycle lifespan.
Source: Nano Energy - Category: Nanotechnology Source Type: research
ImpediMed, a company based in Carlsbad, California, won clearance from the FDA for its SOZO device to assess protein calorie malnutrition. The condition can be common in cancer patients, so recognizing it before obvious symptoms, such as muscle wasti...
Source: Medgadget - Category: Medical Devices Authors: Tags: Medicine Sports Medicine Source Type: blogs
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Source: Progress in Natural Science: Materials International - Category: Materials Science Source Type: research
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Source: Materials Today: Proceedings - Category: Materials Science Source Type: research
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