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Inside the jellyfish’s sting: Exploring the micro-architecture of a cellular weapon

Researchers at Stowers Institute for Medical Research have developed a precise model for the stinging organelle of the starlet sea anemone, revealing its complex architecture and firing mechanism. The findings could lead to beneficial applications in medicine, including microscopic therapeutic delivery devices.

SourceStowers Institute for Medical Research·JournalNature Communications·TypeObservational study·DateJun 23, 2022

Fluorescence microscopy shows how living cells form vesicles to transport cargo like growth factors

Researchers used fluorescence microscopy to study clathrin-mediated endocytosis in living cells. They found evidence of three models of curvature initiation and discovered that short-lived events favored the constant-curvature model, while longer events preferred the flat-to-curved transition pathway.

SourceUniversity of Alabama at Birmingham·JournalNature Communications·TypeExperimental study·DateJun 13, 2022

Researchers demonstrate label-free super-resolution microscopy

A new measurement and imaging approach resolves nanostructures smaller than the diffraction limit without dyes or labels, using polarization and angle-resolved images of transmitted light. The method measures particle size and position with high accuracy, closing the gap between conventional microscopes and super-resolution techniques.

SourceOptica·JournalOptica·DateApr 21, 2022

Heat storage: Scientists develop material that is stable, efficient and eco-friendly

Researchers at Martin Luther University Halle-Wittenberg create a new shape-stabilized phase change material that can absorb significantly more heat and is made of harmless substances. The material, which can be used as large panels integrated into walls, can store up to 24 times more heat than conventional concrete or wallboard.

SourceMartin-Luther-Universität Halle-Wittenberg·JournalJournal of Energy Storage·TypeExperimental study·DateMar 29, 2022

Quantum dots shine bright to help scientists see inflammatory cells in fat

Researchers at the University of Illinois created quantum dots to visualize macrophages in fat tissue, shedding light on chronic inflammation's role in diseases. The new technology enables accurate cell counting and tracking over time, offering a potential diagnostic tool for insulin resistance and metabolic syndrome.

Bio-FlatScope dives deep for useful data

The new device, Bio-FlatScope, uses a custom algorithm to reconstruct images of micron-scale targets like cells and blood vessels inside the body. The light captured by Bio-FlatScope can be refocused after the fact to reveal 3D details, making it potentially valuable for detecting cancer or sepsis.

SourceRice University·JournalNature Biomedical Engineering·TypeExperimental study·DateMar 7, 2022

Now you don’t see it … and now you do

A team of researchers at Rice University has developed a new method to detect tiny cracks in concrete using silicon fluorescence. The technique involves applying a thin coat of opaque paint to the concrete and shining near-infrared light on it, revealing even the smallest microcracks.

SourceRice University·JournalScientific Reports·DateJan 25, 2022

Diamonds are forever: Scientists develop microscopic calibration tool with fluorescent nanodiamonds

Researchers at the University of Illinois created a novel device using microscopic fluorescent diamonds to calibrate sensitive microscopy systems. The nanodiamonds' stability and longevity make them ideal as a 'first-aid kit' for microscopes, allowing for easy reuse and quality control.

SourceBeckman Institute for Advanced Science and Technology·JournalPhotonics Research·TypeImaging analysis·DateNov 5, 2021

Harvard researchers use dyes to store data

A Harvard research team has created a new method of storing digital information using mixtures of fluorescent dyes, which can potentially store data for thousands of years or more. The technique uses inkjet printing and fluorescence microscopy to encode and decode binary messages in the dye molecules.

SourceHarvard University·JournalACS Central Science·TypeExperimental study·DateOct 13, 2021

More effective cell studies using new AI method

A new study from the University of Gothenburg introduces an AI-based method to develop faster, cheaper, and more reliable information about cells using microscopy. This approach eliminates the drawbacks of traditional fluorescence microscopy by providing accurate results without damaging cells or inhibiting processes.

SourceUniversity of Gothenburg·JournalBiophysics Reviews·TypeComputational simulation/modeling·DateOct 12, 2021

New method enables 3D microscopy of human organs

Researchers at Umeå University developed a method to study specific cell types in human organs with high-resolution 3D imaging. This allows for the visualization of previously unrecognized alterations in organs like the pancreas, which can lead to improved understanding of disease conditions and treatment options.

SourceUmea University·JournalCommunications Biology·TypeImaging analysis·DateSep 13, 2021

AI knows where your proteins go

Researchers from Nara Institute of Science and Technology developed a machine learning program that accurately predicts the location of proteins related to actin in cells. The program achieved a high degree of similarity with actual images, showing promise for future applications in cell analysis and artificial cell staining.

SourceNara Institute of Science and Technology·JournalFrontiers in Cell and Developmental Biology·DateAug 5, 2021

New microscopy method reaches deeper into the living brain

Researchers have developed a new technique called diffuse optical localization imaging (DOLI) that enables noninvasive imaging of the brain's microvasculature and neural activity at depths of up to 4 millimeters. This method uses the NIR-II window and is poised to bring new insight into how the brain works in health and disease.

SourceOptica·JournalOptica·DateMay 27, 2021

A deep dive into the brain

Researchers have developed a new fluorescence microscopy technique that allows for high-resolution images of microcirculation in the brain without invasive surgical methods. This breakthrough has the potential to reveal new insights into neurological disorders and facilitate early detection and treatment.

SourceETH Zurich·JournalOptica·DateMay 27, 2021

How photoblueing disturbs microscopy

Researchers discovered that photobleaching can transform fluorescent dyes into new molecules with altered fluorescence spectra, affecting microscopy results. Simple buffer additions can prevent or even exploit this effect for targeted tracking of specific particles.

SourceUniversity of Würzburg·JournalNature Methods·DateFeb 26, 2021

Super-resolution RNA imaging in live cells

Researchers at Heidelberg University developed a novel fluorescence marker called RhoBAST to enable super-resolution RNA imaging in live cells. The method reveals details of subcellular structures and molecular interactions involving RNA, improving image resolution.

SourceHeidelberg University·JournalNature Biotechnology·DateFeb 25, 2021

High-speed holographic fluorescence microscopy system with submicron resolution

A new scanless high-speed holographic fluorescence microscopy system has been developed with submicron resolution, enabling 3D sensing of nanoparticles and color-multiplexed holographic fluorescence imaging. The system achieves measurements in less than 1 millisecond using digital holography and a phase modulator.

Super-resolution microscopy of neurons

Researchers have successfully raised funding for a project to develop a new super-resolution microscopy technique that can visualize individual synapse proteins with nanometer-scale resolution. The project combines expansion microscopy and single-molecule-sensitive super-resolution microscopy to achieve improved microscopic resolution.

Get diamonds, take temperature

Researchers from Osaka City University developed a microscope-based thermometer that uses quantum technology to detect temperature changes in live, microscopic animals. The thermometry algorithm successfully tracked temperature fluctuations in C. elegans nematode worms after inducing a fever by stimulating their mitochondria.

SourceOsaka City University·JournalScience Advances·DateSep 11, 2020

Shining light into the dark

Researchers have developed a new method to analyze microscopic samples without using external light, reducing interference and damage to living specimens. The 'glow in the dark' approach uses chemical stimuli to activate chemicals, enabling precise control over localized oxidative hotspots.

SourceCurtin University·JournalCell Reports Physical Science·DateJul 9, 2020

Limitations of super-resolution microscopy overcome

Researchers have overcome the limitation of super-resolution microscopy by combining dSTORM and expansion microscopy, achieving a distance error reduction to just five nanometers. This enables fluorescence imaging with molecular resolution for the first time, allowing detailed insights into molecular function and architecture.

SourceUniversity of Würzburg·JournalNature Communications·DateJul 7, 2020

New technique pinpoints locations of individual molecules in their cellular neighborhoods

A new microscopy technique has pinpointed the locations of individual proteins within bacterial cells, revealing their precise positions and interactions. The technique, called CIASM, combines fluorescent imaging with cryogenic electron tomography to produce high-resolution images of molecules in their cellular neighborhoods.

SourceDOE/SLAC National Accelerator Laboratory·JournalProceedings of the National Academy of Sciences·DateJun 8, 2020