For the first time, the cells of fungi can also be analysed using a relatively simple microscopic method. Researchers from Würzburg and Cordoba present the innovation in the journal Frontiers in Microbiology.
A selective mating experiment by a curious butterfly breeder has led scientists to a deeper understanding of how butterfly wing color is created and evolves. The study, led by scientists at University of California, Berkeley, and the Marine Biological Laboratory, Woods Hole, is published today in eLife.
Infertility is estimated to affect 9% of reproductive-aged couples globally, and many couples turn to assisted reproductive technology. Selecting embryos with maximum development potential plays a pivotal role in obtaining the highest rate of success. Researchers can evaluate the quality of an embryo by detecting the content of proteins secreted. In Biomicrofluidics, a method to detect trace proteins secreted by embryos using microfluidic droplets and multicolor fluorescence holds promise to select embryos for ART.
Biohybrid robots on the micrometer scale can swim through the body and deliver drugs to tumors or provide other cargo-carrying functions. To be successful, they must consist of materials that can pass through the body's immune response, swim quickly through viscous environments and penetrate tissue cells to deliver cargo. In APL Bioengineering, researchers fabricated biohybrid bacterial microswimmers by combining a genetically engineered E. coli MG1655 substrain and nanoerythrosomes, small structures made from red blood cells.
Researchers at Kanazawa University and Tsukuba University report in Nanoscale that the physical properties of extracellular bacterial membrane vesicles are significantly diverse. The properties for a single type of bacterium as well as for different types are found to be highly heterogeneous.
NTU Singapore scientists have created a paper-like material derived from pollen that bends and curls in response to changing levels of environmental humidity. The ability of this paper made from pollen to alter its mechanical characteristics in response to external stimuli may make it useful in a wide range of applications, from artificial muscles to sensors. Combined with digital printing, it may hold promise for the fabrication of a new generation of programmable natural actuators.
The movements of cell muscles in the form of tiny filaments of proteins have been visualized at unprecedented detail by University of Warwick scientists.
The Casimir Force is a well-known effect originating from the quantum fluctuation of electromagnetic fields in a vacuum. Now an international group of researchers have reported a counterpoint to that theory, adding to the understanding of energy fluctuations within fluids.
University of Groningen scientists observed the characteristics of a single enzyme inside a nanopore. This revealed that the enzyme can exist in four different folded states, or conformers, that play an active role in the reaction mechanism. These results will have consequences for enzyme engineering and the development of inhibitors. The study was published in Nature Chemistry on April 6.
Cell biologists at the UC Riverside reveal the phytochrome B molecule has unexpected dynamics activated by temperature, and behaves differently depending on the temperature and type of light. As climate change warms the world, crop growth patterns and flowering times will change. A better understanding of how phytochromes regulate the seasonal rhythms of plant growth will help scientists develop crops for optimal growth under the new climate and might shed light on cancer in animals.