Using state-of-the art microscopy, scientists have peered inside cardiac cells while they beat, revealing tube-like structures that buckle and then snap back into shape, much like shock absorbers. The details now appear in Science.
For the first time ever, molecular biologists have filmed the death of a human white blood cell. But the video shows something else, too. These integral components of our immune system do not go quietly into that good night. Rather, they go down alerting their neighbors to the presence of potential pathogens.
The Y chromosome, a chunk of genetic code that is unique to male mammals, isn’t just physically smaller than the X. It also contains far fewer genes. The X has more than 1000 genes, while the Y has fewer than 200 —and most of them don’t even work. Why do men have this odd, stunted chromosome in their genomes?
It's like wearing X-ray goggles, but better. Caltech researchers have created two new techniques that allow them to identify individual cells within 3D, intact organisms or tissues. And the results are jaw-droppingly beautiful.
Scientists from Penn State University have just taken us a major step closer to a Fantastic Voyage future. For the first time ever, researchers have controlled the movements of living cells by inserting tiny synthetic motors directly inside them.
No, this isn't something out of an Octavia Butler novel. It’s Tetrahymena thermophila — a single-celled organism that goes way beyond male and female. It has seven different sexes to choose from. Now a new study published in PLOS has finally made sense of its bizarrely complex and seemingly random sex life.
This photograph may look like an artifact from an alien world (one with similar taste in architecture to the Egyptians), but it actual depicts a cell living in a pyramid-shaped cage, one that helps us view cells in something closer to their natural environment.
Molecular biology professor and artist David Goodsell has no trouble finding art in the human body. His hand-drawn watercolor illustrations explode with color while offering his visual interpretation of bacteria, viruses, and human cells.Cytochrome C in Apoptosis Cytotoxic T Cell DNA Polymerase Hemostasis Hepatitis B
Biological organisms have a nifty trick, where they can grow uniform materials into three dimensional shapes by limiting growth in certain areas. As some cells expand, others don't, causing the object to warp in three dimensions. Now researchers have applied that same theory to gel sheets, and developed a way of…
Robert Hooke discovered the cell, established experimentation as crucial to scientific research, and did pioneering work in optics, gravitation, paleontology, architecture, and more. Yet history dismissed and forgot him... all because he pissed off Isaac Newton, probably the most revered scientist who ever lived.
Cancer is one of the most difficult foes medical science has ever faced, but a controversial new idea might just show a way to victory. A group of scientists have evidence that cancer might be an evolutionary throwback to our most distant animal ancestor.
It's been a big week for the world of the small. In a new microscope breakthrough, researchers have figured out how to use a minuscule sheet of light to produce movies of living cells, revealing mitosis in action and illuminating cells' three-dimensional architecture with the greatest detail ever seen.
How did a bunch of lifeless molecules transform themselves into living cells, turning the ancient, dead Earth into a planet teeming with life? It's an incredibly difficult question to answer, but a new model might explain part of the story.
Cells are amazing self-contained, organic machines. They can also, when needed, grow "arms" that move them around and are extraordinarily strong. Now, scientists have used 3D modeling to determine just how much force a single cell can exert.
We could theoretically repair cells by artificially inserting the missing proteins or DNA. Unfortunately, we couldn't come up with a safe, effective (and awesome) way to do it - until we used tiny lasers to blow up the cellular membrane.