Dr. Petr Cígler and his collaborators are working on refining molecular systems for transporting ribonucleic acid (RNA) molecules into cells. The question of how to effectively deliver RNA to a designated place in the body in order to silence a malfunctioning gene is one of the greatest challenges of the rapidly developing field of gene medicine.
In a first for communications, researchers in Sweden 3D printed silica glass micro-optics on the tips of optic fibers—surfaces as small as the cross section of a human hair. The advance could enable faster internet and improved connectivity, as well as innovations like smaller sensors and imaging systems.
Safe and high-quality fertility preservation is of growing significance for women in clinical trials. Current primary methods for cryopreserving human oocytes are slow freezing and vitrification, but existing techniques pose risks of biochemical toxicity and are restricted in large-scale clinical practice.
Twinned nanoparticles have regions of clear symmetry that share the same crystal lattice, separated by a clear boundary. Changing the twin structure can affect the properties of the nanoparticles, which makes controlling twinning to create tailored nanomaterials an active area of research.
It’s one thing to dream up a quantum internet that could send hacker-proof information around the world via photons superimposed in different quantum states. It’s quite another to physically show it’s possible.
From Stanford, Albert Einstein, & Johns Hopkins U: a multimodal agent benchmark to evaluate AI in simulated clinical environments.
From stanford, albert einstein, & johns hopkins U
AgentClinic: a multimodal agent benchmark to evaluate AI in simulated clinical environments abs: https://arxiv.org/abs/2405.07960 project page: https://agentclinic.github.io code: https://github.com/samuelschmidgall/agentclinic.
A new multimodal agent…
At Google I/O, Google previewed a generative AI model that can create videos at 1080p around a minute in length.
The headline-grabbing release here is Gemma 2, the next generation of Google’s open-weights Gemma models, which will launch with a 27 billion parameter model in June.
Already available is PaliGemma, a pre-trained Gemma variant that Google describes as “the first vision language model in the Gemma family” for image captioning, image labeling and visual Q&A use cases.
So far, the standard Gemma models, which launched earlier this year, were only available in 2-billion-parameter and 7-billion-parameter versions, making this new 27-billion model quite a step up.
In a new study recently published by Science Advances, Michigan State University researchers reveal an unexpected genetic revelation about the sugars found in “tomato tar,” shedding light on plant defense mechanisms and their potential applications in pest control.
Tomato tar, a familiar nuisance of avid gardeners, is the sticky, gold-black substance that clings to hands after touching the plant. It turns out that the characteristic stickiness of the substance serves an important purpose. It’s made of a type of sugar called acylsugar that acts as a natural flypaper for would-be pests. “Plants have evolved to make so many amazing poisons and other biologically active compounds,” said Michigan State researcher Robert Last, leader of the study. The Last lab specializes in acylsugars and the tiny, hair-like structures where they’re produced and stored, known as trichomes.
In a surprising discovery, researchers have found acylsugars, once thought to be found exclusively in trichomes, in tomato roots as well. This finding is a genetic enigma that raises as many questions as it does insights.
