نتایج جستجو برای: cytotoxicity tests

تعداد نتایج: 380773  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

the ability of composing a coherent and extended piece of writing in second language is considered as a fundamental factor to convey information and ideas of learners through the academic issues. although learners may achieve a perfect academic writing skill through assigning the l2 tasks in content based instruction, but demonstration of their abilities may be related to their ability in l1 es...

Journal: :Pharmacognosy Journal 2022

Breast Cancer is the second-highest prevalence of cancer disease in Indonesia, with number new cases and deaths continues to increase. Kirinyuh or Austroeupatorium inulaefolium (Kunth) R. D. King & H. Robinson a shrub plant, which are widely grown Indonesia. Traditionally, it used for woundhealing information about anticancer potential A. still very limited. This study aims assess cytotoxic act...

2010
Matheus Melo Pithon Rogério Lacerda dos Santos Fernanda Otaviano Martins Maria Teresa Villela Romanos Mônica Tirre de Souza Araújo

As new orthodontic resin adhesives continue to be marketed, rapid and sensitive tests for examining their toxic effects at the ‘ cell and tissue level ’ are needed because patient safety has been identifi ed as a legal concept. The objective of the present study was to evaluate the cytotoxicity and degree of monomer conversion of orthodontic adhesives over different time periods. Seven adhesive...

2009
Federica Boraldi Chiara Coppi Sergio Bortolini Ugo Consolo Roberta Tiozzo

The need for clinically relevant in vitro tests of dental materials is widely recognized. Nearly all dental impression materials are introduced into the mouth just after mixing and allowed to set in contact with the oral tissues. Under these conditions, the materials may be toxic to cells or may sensitize the tissues. The aim of the present study is to evaluate the potential cytotoxicity of new...

Journal: :Water 2022

The degradation of Reactive Yellow 18 (RY-18), induced by gamma radiation in aqueous medium, was carried out as a function dose (5–20 kGy) and concentration hydrogen peroxide, the initial dye pH solution were optimized for maximum efficiency. Gamma radiations alone combination with H2O2 used to degrade RY-18. A rate 99% achieved using an absorbed 20 kGy, 0.6 mL acidic pH. Variations functional ...

Journal: :Metals 2022

In this work, selective laser melting (SLM) technology was used to prepare Mg-4Y-3Nd-Zr (WE43) alloy. This alloy and production method are promising for the design of biodegradable implants. The aim study investigate chemical composition, microstructure, mechanical properties, corrosion behavior in simulated body fluid (SBF), cytotoxicity produced by SLM compare it with conventionally gravity c...

Journal: :Archives of Civil and Mechanical Engineering 2023

Abstract This paper aimed to investigate the selected physicochemical and biological properties of titanium dioxide thin films deposited by atomic layer deposition on 316LVM stainless steel dedicated for cardiovascular implants. The main challenge in surface modification these implants is complexity processes taking place circulatory system. was carried out a number cycles 500 temperature 200 °...

Journal: :Toxicology in vitro : an international journal published in association with BIBRA 2007
Maria Davoren Eva Herzog Alan Casey Benjamin Cottineau Gordon Chambers Hugh J Byrne Fiona M Lyng

This paper describes the in vitro cytotoxicity assessment of single walled carbon nanotubes (SWCNT) on A549 cells, a human lung cell line. Cellular viability was determined using the alamar blue (AB), neutral red (NR) and MTT assays, which evaluated metabolic, lysosomal and mitochondrial activity respectively. In addition, the total protein content of the cells was measured using the coomassie ...

2011
Fei-Lung Lai Yu-Hung Wang Yu-Wei Chung Shiaw-Min Hwang Long-Sun Huang

This study demonstrates a novel cell manipulation microdevice for cell docking, culturing, cell-cell contact and interaction by microfluidic manipulation of heterogeneous cell suspensions. Heterogeneous cell suspensions include disparate blood cells of natural killer cells and leukemia cancer cells for immune cell transplantation therapy. However, NK cell alloreactivity from different healthy d...

Journal: :Acta biochimica Polonica 2016
Katarzyna Śliżewska Adriana Nowak Stefania Smulikowska

The aim of the present study was to assess the genotoxicity and cytotoxicity of the faecal water of chickens fed ochratoxin A (OTA) contaminated feed with and without probiotic preparation. The study was performed on 20 healthy female Ross broiler chickens divided into 4 groups: control chickens - fed with non-supplemented feed; PP chickens - fed feed supplemented with the probiotic preparation...

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