Live imaging has gained a pivotal role in developmental biology since it increasingly allows real-time observation of cell behavior in intact organisms. Microscopes that can capture the dynamics of ever-faster biological events, fluorescent markers optimal for in vivo imaging, and, finally, adapted reconstruction and analysis programs to complete data flow all contribute to this success. Focusi...

Introduction: Imaging of multicellular organisms with nano-scale resolution is one of the challenges of modern life sciences. To solve biological problems, often the combined information of several microscopy techniques is necessary. While confocal fluorescence microscopy and optical super-resolution fluorescence can detect the distribution of markers in live cells, electron microscopy (EM) off...

Most of the biological functions, including the immune system, are linked to circadian rhythms in living organisms. Changes occurring to biological parameters as the result of these circadian rhythms can therefore affect the outcome of a disease. For decades, model organisms have proven to be a great tool to understanding biological mechanisms such as circadian cycle and immunity. In this revie...

developing reliable and eco-friendly processes for the synthesis of metallic nanoparticles is an essential step in the field of application of nanotechnology .using natural factories such as biological systems is a way of developing such processes. nowadays, the synthesis of silver nanoparticles is very common due to its numerous applications in different fields. the synthesis of these nanopart...

Chemically managed plants impose environmental risks to humans and environment. Using biological approaches control plant diseases is a more effective environment friendly alternative. The approach disease refers controlling by using organisms like fungi, bacteria viruses. This can be done introduction or utilization of resident antagonistic living organisms. Biological achieved through differe...

Rationale Biological organisms for the prevention of turfgrass diseases are now available and in widespread use. Biological control is achieved through antagonistic action of one organism toward another such as a pathogen or weed. At present, no genetically engineered organisms are available in the turfgrass industry, however, as advances in biotechnology increase the activity of wild type (nat...

In the past decade the volvocine green algae, spanning from the unicellular Chlamydomonas to multicellular Volvox, have emerged as model organisms for a number of problems in biological fluid dynamics. These include flagellar propulsion, nutrient uptake by swimming organisms, hydrodynamic interactions mediated by walls, collective dynamics and transport within suspensions of microswimmers, the ...

The purpose of this article is to introduce a diffusion model for biological organisms that increase their motility when food or other resource is insufficient. It is shown in this paper that Fick's diffusion law does not explain such a starvation driven diffusion correctly. The diffusion model for nonuniform Brownian motion in Kim (Einstein's random walk and thermal diffusion, preprint http://...

The development of efficient biological systems for the direct photoproduction of H(2) gas from water faces several challenges, the more serious of which is the sensitivity of the H(2)-evolving enzymes (hydrogenases) to O(2), an obligatory by-product of photosynthesis. This high sensitivity is common to both FeFe and NiFe hydrogenases, and is caused by O(2) binding to their respective metalloca...

This study explores the concept of evolving game terrains through intermediation of living biological organisms and presents a proof of concept realization thereof. We explore how fungal and bacterial cultures can be used to generate an evolving game terrain in real-time. By visually capturing growing cultures inside a Petri-dish, heightmaps are generated that form the basis of naturally evolvi...