Blog

Archive for the ‘biological’ category: Page 4

Sep 6, 2024

Self-sensing cantilever design enhances microelectromechanical system performance in challenging environments

Posted by in categories: biological, computing

Microelectromechanical systems (MEMS) are tiny devices that integrate various components, such as miniature sensors, electronics and actuators, onto a single chip. These small devices have proved highly promising for precisely detecting biological signals, acceleration, force and other measurements.

Most of the MEMS developed to date are made of silicon and silicon nitride. While some of these devices have achieved promising results, their material composition and design limit their sensitivity and versatility, for instance limiting their use in wet environments.

In a recent Nature Electronics paper, researchers at Ecole Polytechnique Fédérale de Lausanne (EPFL) introduced an innovative cantilever design for MEMS based on a polymer, a semiconductor and ceramic. Cantilevers are tiny flexible beams that can adapt their shape in response to external forces or molecular interactions, thus potentially serving as sensors or actuators.

Sep 4, 2024

A new method captures the stochastic dynamics in coherent X-ray imaging

Posted by in categories: biological, chemistry, nanotechnology, space

Coherent X-ray imaging has emerged as a powerful tool for studying both nanoscale structures and dynamics in condensed matter and biological systems. The nanometric resolution together with chemical sensitivity and spectral information render X-ray imaging a powerful tool to understand processes such as catalysis, light harvesting or mechanics.

Unfortunately these processes might be random or stochastic in nature. In order to obtain freeze-frame images to study stochastic dynamics, the X-ray fluxes must be very high, potentially heating or even destroying the samples.

Also, detectors acquisition rates are insufficient to capture the fast nanoscale processes. Stroboscopic techniques allow imaging ultrafast repeated processes. But only mean dynamics can be extracted, ruling out measurement of stochastic processes, where the system evolves through a different path in phase space during each measurement. These two obstacles prevent coherent imaging from being applied to complex systems.

Sep 4, 2024

Dr. Angie Burnett, Ph.D. — Program Director, ARIA — Synthetic Plants For A Sustainable Future

Posted by in categories: biological, genetics, sustainability

Synthetic Plants For A Sustainable Future — Dr. Angie Burnett, Ph.D. — Program Director, Advanced Research + Invention Agency (ARIA)


Dr. Angie Burnett, Ph.D. is Program Director at the Advanced Research and Invention Agency (ARIA — https://www.aria.org.uk/), a UK organization created by an Act of Parliament, and sponsored by the Department for Science, Innovation, and Technology, to fund projects across a full spectrum of R\&D disciplines, approaches, and institutions, per the ARIA mission statement to “Look beyond what exists today to the breakthroughs we’ll need tomorrow”

Continue reading “Dr. Angie Burnett, Ph.D. — Program Director, ARIA — Synthetic Plants For A Sustainable Future” »

Sep 2, 2024

Aluminium foil that can clean water: we’ve developed a coating which attracts and traps dangerous microbes

Posted by in category: biological

A specially coated foil removed more than 99% of E. coli bacteria from water in laboratory tests.

Sep 2, 2024

Cells use alternative splicing to regulate gene expression, research suggests

Posted by in categories: biological, genetics

Alternative splicing is a genetic process where different segments of genes are removed, and the remaining pieces are joined together during transcription to messenger RNA (mRNA). This mechanism increases the diversity of proteins that can be generated from genes, by assembling sections of genetic code into different combinations. This is believed to enhance biological complexity by allowing genes to produce different versions of proteins, or protein isoforms, for many different uses.

Aug 30, 2024

Nanoplastics put stress on trees and impair photosynthesis

Posted by in categories: biological, nanotechnology, particle physics

And, if its in trees, guess where else it is, Crisis Yet? or nah.


It is well known that more and more plastic waste is ending up in soil and bodies of water. Researchers are particularly concerned about tiny micro-and nano-sized particles. It remains unclear how and to what extent they are able to enter living organisms—and what effect they may have on metabolism.

Aug 28, 2024

How did consciousness evolve? An excerpt from ‘A History of Bodies, Brains, and Minds: The Evolution of Life and Consciousness’

Posted by in categories: biological, evolution, neuroscience

In his new book, to be published in September, neuroscientist Francisco Aboitiz links consciousness back to the earliest days of biological life.

Aug 28, 2024

Six types of loves differentially recruit reward and social cognition brain areas

Posted by in categories: biological, neuroscience

Abstract. Feelings of love are among the most significant human phenomena. Love informs the formation and maintenance of pair bonds, parent-offspring attachments, and influences relationships with others and even nature. However, little is known about the neural mechanisms of love beyond romantic and maternal types. Here, we characterize the brain areas involved in love for six different objects: romantic partner, one’s children, friends, strangers, pets, and nature. We used functional magnetic resonance imaging (fMRI) to measure brain activity, while we induced feelings of love using short stories. Our results show that neural activity during a feeling of love depends on its object. Interpersonal love recruited social cognition brain areas in the temporoparietal junction and midline structures significantly more than love for pets or nature. In pet owners, love for pets activated these same regions significantly more than in participants without pets. Love in closer affiliative bonds was associated with significantly stronger and more widespread activation in the brain’s reward system than love for strangers, pets, or nature. We suggest that the experience of love is shaped by both biological and cultural factors, originating from fundamental neurobiological mechanisms of attachment.

Aug 26, 2024

Organoid intelligence: a new biocomputing frontier | Frontiers in Science

Posted by in categories: biological, information science, robotics/AI, science

Organoid intelligence (OI) is an emerging scientific field aiming to create biocomputers where lab-grown brain organoids serve as ‘biological hardware’

In their article, published in Frontiers in Science, Smirnova et al., outline the multidisciplinary strategy needed to pursue this vision: from next-generation organoid and brain-computer interface technologies, to new machine-learning algorithms and big data infrastructures.

Continue reading “Organoid intelligence: a new biocomputing frontier | Frontiers in Science” »

Aug 25, 2024

Spiking Neural Networks: A Path Towards Brain-Inspired Computing

Posted by in categories: biological, robotics/AI

Have you ever wonder how SNNs work and their difference from traditional neural networks? Or how SNNs play an important role in computing beyond the Moore’s Law?

What is SNN?
Spiking neural network (SNN) is a new form of neural networks with biologically realistic mechanisms designed to emulate the efficiency and effectiveness of the biological brain.

Page 4 of 21912345678Last