tribulus terrestris (tt) is a member of the zygophyllaceae family. traditional chinese medicine recommends the use of tt for treatment of a variety of diseases. in the present study we further investigated anti-proliferative and cytotoxic effects of tt extract on normal and several malignant cell lines. for this purpose, ttwas collected and after authentication, aqueous extract was prepared. cy...

although the application of biodegradative genetically engineered micro organisms (gems) for bioremediation is very promising, the risks of their release should be assessed before their introduction into the environment. lux-marked ralstonia eutropha h850lr (formerly alcaligenes eutrophus h850lr) was introduced into sterile and non-sterile soil microcosms at matric potentials ?2.11, ?30, ?750, ...

To achieve the important aims of identifying and marking disease progression, cell counting is crucial for various biological and medical procedures, especially in a Point-Of-Care (POC) setting. In contrast to the conventional manual method of counting cells, a software-based approach provides improved reliability, faster speeds, and greater ease of use. We present a novel software-based approa...

In this paper, we present a novel cell counting method accomplished using a single-cell array fabricated on an image sensor, complementary metal oxide semiconductor sensor. The single-cell array was constructed using a microcavity array, which can trap up to 7,500 single cells on microcavities periodically arranged on a plane metallic substrate via the application of a negative pressure. The pr...

During vertebrate development, many types of precursor cell divide a limited number of times before they stop and terminally differentiate. It is unclear what limits cell proliferation and causes the cells to stop dividing when they do. The stopping mechanisms are important as they influence both the number of differentiated cells generated and the timing of differentiation. We have been studyi...

objective(s):eukaryotic translation initiation factor 4e (eif4e) is overexpressed in cervical cancer (cc). however, the molecular mechanisms are unclear. this study aimed to investigate the molecular mechanism of eif4e gene overexpression in cc. materials andmethods:the human papillomavirus (hpv) type 18 e7 and eif4e mrnas were measured following knock down or overexpression of e7 gene by rt-pc...

A lensless blood cell counting system integrating microfluidic channel and a complementary metal oxide semiconductor (CMOS) image sensor is a promising technique to miniaturize the conventional optical lens based imaging system for point-of-care testing (POCT). However, such a system has limited resolution, making it imperative to improve resolution from the system-level using super-resolution ...

Growth rate of the green algae, Scenedesmus obliquus, influenced by Diuron, with the trade name of (Karmex) and chemical name of (N'-(3,4-Dichlorophenyl)-N,N-Dimethylurea), was examined in the present study. This study is performed in the laboratory of National Inland Waters Aquaculture Institute in Iran during 96 hours in 6 treatment and 3 replicates, using 500 cc Erlenmeyer Flasks. Measuremen...

Although the application of biodegradative genetically engineered micro organisms (GEMs) for bioremediation is very promising, the risks of their release should be assessed before their introduction into the environment. Lux-marked Ralstonia eutropha H850Lr (formerly Alcaligenes eutrophus H850Lr) was introduced into sterile and non-sterile soil microcosms at matric potentials ?2.11, ?30, ?750, ...

Abstract Cell counting has become an essential method for monitoring the viability and proliferation of cells. A hemacytometer is standard device used to measure cell numbers in most laboratories which are typically automated increase throughput. The principle both manual hemacytometers calculate with a fixed volume within set measurement range (10 5 ~ 10 6 cells/ml). If concentration unknown s...