نتایج جستجو برای: agno3

تعداد نتایج: 832  

2017
Kanchan Vishwakarma Shweta Neha Upadhyay Jaspreet Singh Shiliang Liu Vijay P. Singh Sheo M. Prasad Devendra K. Chauhan Durgesh K. Tripathi Shivesh Sharma

Continuous formation and utilization of nanoparticles (NPs) have resulted into significant discharge of nanosized particles into the environment. NPs find applications in numerous products and agriculture sector, and gaining importance in recent years. In the present study, silver nanoparticles (AgNPs) were biosynthesized from silver nitrate (AgNO3) by green synthesis approach using Aloe vera e...

Journal: :Chemical communications 2018
Wenming Tong Hadas Katz-Boon Michael J Walsh Matthew Weyland Joanne Etheridge Alison M Funston

We investigate the transformation of single crystal gold nanorod surface morphology over extended growth times. After initial rapid anisotropic growth and disappearance of {111} bridging facets, the aspect ratios converge across AgNO3 concentrations. The surface morphology transitions from faceted to curved. These observations imply the final aspect ratio has little dependence on the AgNO3 conc...

2002
R. TUPLING

Tupling, R., and H. Green. Silver ions induce Ca2 release from the SR in vitro by acting on the Ca2 release channel and the Ca2 pump. J Appl Physiol 92: 1603–1610, 2002; 10.1152/japplphysiol.00756.2001.—Silver nitrate (AgNO3) is a sulfhydryl oxidizing agent that induces a biphasic Ca2 release from isolated sarcoplasmic reticulum (SR) vesicles by presumably oxidizing critical sulfhydryl groups i...

Journal: :General physiology and biophysics 2003
P Gromová M Kurejová L Lacinová

We have investigated the effects of AgCl and AgNO3 on the Cav3.1 calcium channels stably expressed in the HEK 293 cells. Ca2+ was used as a charge carrier. Both forms of Ag+ blocked the Cav3.1 channel and negatively shifted the I-V relations in a concentration-dependent manner. The inhibition of current amplitude by AgCl was voltage-dependent and increased with increasing amplitude of the depol...

2013
Yaser Ghani Melanie J Coathup Karin A Hing Gordon W Blunn

XRD and EDX analyses confirmed the presence of Ag in all coatings deposited using electrochemical method and silver. The mean thickness coating was noted to be highest in EHA/AG group (102.20 4.20 um) followed by PHA (76.40 2.20 um). Mean coating thicknesses in other groups were: PHA/AgNO3 (76.20 1.29 um); EHA (32.98 2.50 um); EHA/ Ag/2-layers (30.70 2.40 um); EHA/AgNO3 (8.60 0.60 um). The aver...

Journal: :Journal of applied physiology 2002
R Tupling H Green

Silver nitrate (AgNO3) is a sulfhydryl oxidizing agent that induces a biphasic Ca2+ release from isolated sarcoplasmic reticulum (SR) vesicles by presumably oxidizing critical sulfhydryl groups in the Ca2+ release channel (CRC), causing the channel to open. To further examine the effects of AgNO3 on the CRC and the Ca2+-ATPase, Ca2+ release was measured in muscle homogenates prepared from rat h...

Journal: :International journal of environmental research and public health 2015
Maria J Ribeiro Vera L Maria Janeck J Scott-Fordsmand Mónica J B Amorim

The mechanisms of toxicity of Ag nanoparticles (NPs) are unclear, in particular in the terrestrial environment. In this study the effects of AgNP (AgNM300K) were assessed in terms of oxidative stress in the soil worm Enchytraeus crypticus, using a range of biochemical markers [catalase (CAT), glutathione peroxidase (GPx), glutathione S-transferase (GST), glutathione reductase (GR), total glutat...

Journal: :nanomedicine research journal 0
nooshin amini department of nanochemistry, faculty of pharmaceutical chemistry, pharmaceutical sciences branch, islamic azad university, tehran, iran (iaups) gholamreza amin department of pharmacognosy, faculty of pharmacy, pharmaceutical sciences branch, islamic azad university, tehran, iran (iaups) zahra jafari azar department of pharmaceutics, faculty of pharmacy, pharmaceutical sciences branch, islamic azad university, tehran, iran (iaups)

objective(s): nowadays, nanoparticles bio production, considering their performance in medicine and biological science, is increasing. green synthesis of metal nanoparticles using organisms has emerged as a nontoxic and ecofriendly method for synthesis of metal nanoparticles the objectives of this study were the production of silver nanoparticles using avena sativa l. extract and optimization o...

2015
Chun-Hung Chu Sherry Shiqian Gao Samantha KY Li May CM Wong Edward CM Lo

BACKGROUND The application of 38 % silver diamine fluoride (SDF) has been shown to be effective in arresting early childhood caries (ECC). Since SDF is not available in certain countries, some dentists use adjunctive application of 25 % silver nitrate (AgNO3) and 5 % sodium fluoride (NaF) to arrest ECC. This randomised controlled trial will systematically compare the efficacy of a 25 % AgNO3 so...

2014
Hui Qin Chen Zhu Zhiquan An Yao Jiang Yaochao Zhao Jiaxin Wang Xin Liu Bing Hui Xianlong Zhang Yang Wang

In tissue engineering, urine-derived stem cells are ideal seed cells and silver nanoparticles (AgNPs) are perfect antimicrobial agents. Due to a distinct lack of information on the effects of AgNPs on urine-derived stem cells, a study was conducted to evaluate the effects of silver ions and AgNPs upon the cytotoxicity and osteogenic differentiation of urine-derived stem cells. Initially, AgNPs ...

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