abstract increase in the use of nano zinc oxide in medicine, manufacturing cosmetic products and research, have raised the questions about their toxicity. zinc has direct role in growth, maturation and ovulation through influence on production of estradiol and progesterone. in this study the effects of nano zinc oxide on oogenesis of adult nmri mouse strain have been investigated. the adult fem...

Forty-five Angus steers (avg initial wt 330 kg) were individually fed for 112 d to assess the value of supplemental Zn and source on performance and carcass quality. Steers had ad libitum access to a control diet (81 ppm Zn) of 33% whole corn, 33% ground milo, 15% cottonseed hulls and 13% cottonseed meal, or this control diet with 360 mg Zn/d added from either zinc methionine or zinc oxide. Ste...

BACKGROUND Nitric oxide is a major neurotransmitter in non-adrenergic, non-cholinergic (NANC) pathways. NANC inhibitory innervation has been shown in human gall bladder muscle in vitro; the role of nitric oxide in human gall bladder emptying however is undefined. AIMS To study the effect of glyceryl trinitrate, a nitric oxide donor, on gall bladder emptying in healthy subjects using a randomi...

introduction: pulpectomy is a conservative treatment plan for primary necrotic teeth and zinc oxide eugenol is still a good choice as root canal filling material but long term studies on poor prognosis molars are limited and almost contradictory. the purpose of this study is to evaluate the clinical and radiographical success rate of pulpectomy of necrotic primary molars using zoe as the root c...

objective(s):the mesenchymal stem cells (mscs) have been introduced as appropriate cells for tissue engineering and medical applications. some studies have shown that topography of materials especially physical surface characteristics and particles size could enhance adhesion and proliferation of osteoblasts. in the present research, we studied the distinction effect of 30 and 60 μg/ml of zinc ...

nanotechnology researchers have identified a wide range of nanoparticle applications that may have an important role in medicine and treatment of diseases. due to lack of detailed documentation about the toxicology of zinc oxide (zno) nanoparticles, this study was aimed to evaluate the absorption of zno nanoparticles in hearts of female nmri mice. overall, 20 adult nmri female mice were studied...

The synthesis of hexagonal ring-shaped structures of zinc oxide using nanosphere lithography and metal/metal oxide sputtering is demonstrated. This synthesis exploits the surface re-emission of zinc oxide to deposit material in regions lying out of the line-of-sight of the sputtering source. These rings can nucleate the hydrothermal growth of zinc oxide crystals. Control over the growth could b...

Zinc Oxide and Al-doped ZnO (AZO) thin films were prepared by Electrostatic spray deposition method on soda lime, glass substrates. The effects of substrate temperatures (300, 350, 400 and 450 C) on the Structural properties of the films were investigated. X-ray diffraction analysis indicates that the films were polycrystalline, having hexagonal (Wurtzite) structure irrespective of their substr...