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15 papers found.
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Efficient, low-dimensional nanocomposite bilayer CuO/ZnO solar cell at various annealing temperatures

In this work, heterojunction, solar cells based on inorganic semiconductors were fabricated at various thermal-annealing temperatures using vapor deposition techniques. The active layer primarily consists of a bilayer comprising a hole transporting copper oxide-CuO and an electron transporting zinc oxide-ZnO nanoparticles. It was observed that the power conversion efficiency-PCE...

Structural, optical, and magnetic study of Ni-doped TiO2 nanoparticles synthesized by sol–gel method

In this research, the effects of transition metal (Ni) doping to metal-oxide nanoparticles (TiO2) were studied. Various weight ratios (5, 10, 15, and 20%) of Ni-to-TiO2 nanoparticles were synthesized using the sol–gel technique. These doped nanoparticles were prepared using titanium butoxide and nickel nitrate as precursors and methanol as a solvent. The effects of Ni doping to...

Thermal stability of lead sulfide and lead oxide nano-crystalline materials

aqueous route to synthesis CuS nanoparticles and further aggregation to spherical shape . Appl Nanosci 3 : 119 - 124 Nafees M , Ikram M , Ali S ( 2015 ) Thermal behavior and decomposition of copper sulfide

Eco-friendly biosynthesis, anticancer drug loading and cytotoxic effect of capped Ag-nanoparticles against breast cancer

The work aimed to prepare silver nanoparticles (Ag-NPs) from silver nitrate and various concentrations of the seed extract (Setaria verticillata) by a green synthetic route. The chemical and physical properties of the resulting Ag-NPs were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FTIR) spectrometry and...

Towards efficient and cost-effective inverted hybrid organic solar cells using inorganic semiconductor in the active layer

and TiO2 concentration relative to PCBM resulted in significant agglomeration of nanoparticles leading to degraded device parameters. DCB layer; Polymer - M. Imran and M. Ikram are equal contributors

Is the time ripe for new diagnostic criteria of cognitive impairment due to cerebrovascular disease? Consensus report of the International Congress on Vascular Dementia working group

Background Long before Alzheimer’s disease was established as the leading cause of dementia in old age, cerebrovascular lesions were known to cause cognitive deterioration and associated disability. Since the middle of the last century, different diagnostic concepts for vascular dementia and related syndromes were put forward, yet no widely accepted diagnostic consensus exists to...

The clinical value of metabolic syndrome and risks of cardiometabolic events and mortality in the elderly: the Rotterdam study

Background To evaluate the clinical value of metabolic syndrome based on different definitions [American Heart Association/National Heart, Lung and Blood Institute (AHA/NHLBI), International Diabetes Federation (IDF) and European Group for the Study of Insulin Resistance (EGIR)] in middle-aged and elderly populations. Methods We studied 8643 participants from the Rotterdam study...

Cardiovascular risk factors and future risk of Alzheimer�s disease

Alzheimer�s disease (AD) is the most common neurodegenerative disorder in elderly people, but there are still no curative options. Senile plaques and neurofibrillary tangles are considered hallmarks of AD, but cerebrovascular pathology is also common. In this review, we summarize findings on cardiovascular disease (CVD) and risk factors in the etiology of AD. Firstly, we discuss...

Electrostatic Solitary Waves in Pair-ion Plasmas with Trapped Electrons

Electrostatic solitons in an unmagnetized pair-ion plasma comprising adiabatic fluid positive and negative ions and non-isothermal electrons are investigated using both arbitrary and small amplitude techniques. An energy integral equation involving the Sagdeev potential is derived, and the basic properties of large amplitude solitary structures are investigated. Various features...

The potential for prevention of dementia across two decades: the prospective, population-based Rotterdam Study

Background Cardiovascular factors and low education are important risk factors of dementia. We provide contemporary estimates of the proportion of dementia cases that could be prevented if modifiable risk factors were eliminated, i.e., population attributable risk (PAR). Furthermore, we studied whether the PAR has changed across the last two decades. Methods We included 7,003...

Education plays a greater role than age in cognitive test performance among participants of the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

Background Brazil has gone through fast demographic, epidemiologic and nutritional transitions and, despite recent improvements in wealth distribution, continues to present a high level of social and economic inequality. The ELSA–Brasil, a cohort study, aimed at investigating cardiovascular diseases and diabetes, offers a great opportunity to assess cognitive decline in this...

Recycling Polymer-Rich Waste Printed Circuit Boards at High Temperatures: Recovery of Value-Added Carbon Resources

Technology Department, CSIR-Institute of Minerals and Materials Technology , Bhubaneswar 751013 , India 2 V. Sahajwalla R. Cayumil R. Khanna (&) M. Ikram-Ul-Haq R. Rajarao Centre for Sustainable Materials

EFFECT OF MIXING ZNO:TIO2 NANOPARTICLES IN P3HT:PCBM SOLAR CELLS

, University of Kurdistan, Erbil, Iraq M. Ikram Solar Application Lab, Department of Physics, G. C . University Lahore Pakistan R. Murray Department of Physics and Astronomy, University of Delaware, USA A

EFFECT OF MIXING ZNO:TIO2 NANOPARTICLES IN P3HT:PCBM SOLAR CELLS

, University of Kurdistan, Erbil, Iraq M. Ikram Solar Application Lab, Department of Physics, G. C . University Lahore Pakistan R. Murray Department of Physics and Astronomy, University of Delaware, USA A