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In 10 seconds, an AI model detects cancerous brain tumor often missed during surgery

Researchers developed an AI-powered model called FastGlioma that can detect residual tumor tissue with high accuracy in 10 seconds. The technology outperformed conventional methods, reducing the risk of missed tumors by nearly 75%. This innovation could change the field of neurosurgery and minimize reliance on radiographic imaging.

SourceMichigan Medicine - University of Michigan·JournalNature·TypeObservational study·DateNov 13, 2024

New imaging technique to improve head and neck cancer surgery

Researchers developed a new imaging technique using fluorescence-guided surgery to enhance visibility of tumors and nerves during head and neck cancer surgery. The technique uses two near-infrared fluorophores, one for tumors and another for facial nerves, allowing for clear differentiation between cancerous tissues and nerves.

SourceSPIE--International Society for Optics and Photonics·JournalJournal of Biomedical Optics·DateNov 7, 2024

Novel artificial intelligence-based method for pathological diagnosis of hereditary kidney diseases

Researchers developed an AI-based method to analyze kidney lesions in female patients with Alport syndrome, predicting renal prognosis and guiding treatment interventions. The approach uses a modified stain and deep learning to detect basement membrane lesions, showing a positive correlation with proteinuria concentration.

SourceUniversity of Tsukuba·JournalAmerican Journal Of Pathology·DateOct 30, 2024

Turning up the signal

Osaka University researchers develop a new method for long-range enhancement of fluorescence and Raman signals using Ag nanoislands protected with column-structured silica layers. This leads to an astonishing ten-million-fold increase in signal strength, making it ideal for sensitive biosensing applications.

SourceOsaka University·JournalLight Science & Applications·TypeExperimental study·DateOct 28, 2024

2-billion-year-old rock home to living microbes

Researchers have discovered living microbes in a 2-billion-year-old rock sample from the Bushveld Igneous Complex in South Africa. The team used advanced imaging techniques to confirm the presence of indigenous microorganisms, shedding light on the early evolution of life on Earth and the potential for similar organisms to exist on Mars.

SourceUniversity of Tokyo·JournalMicrobial Ecology·TypeObservational study·DateOct 3, 2024

Tracking depression

A team led by Weiying Lin created a molecular probe that selectively detects serotonin, a key player in depression. The study suggests that the ability of neurons to release serotonin is more critical than serotonin levels themselves.

SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateSep 6, 2024

New insights into neural circuit imaging: A comparison of one-photon and two-photon techniques

A recent study by Harvard University researchers compares the effectiveness of one-photon (1P) versus two-photon (2P) voltage imaging in neural circuits. The study found that 2P excitation requires approximately 10,000 times more illumination power per cell compared to 1P excitation, posing significant challenges for 2P voltage imaging.

Pink elephants in the brain?

A study published in Neuron reveals that neurons are wired to connect seemingly unrelated concepts, enhancing the brain's ability to predict what we see based on past experiences. Visual experience influences the organisation of feedback projections, which store information about the world.

SourceChampalimaud Centre for the Unknown·JournalNeuron·TypeExperimental study·DateAug 12, 2024

Improving resolution and reducing noise in fluorescence microscopy with ensured fidelity

Researchers have developed a novel deconvolution method called multi-resolution analysis (MRA) that improves image quality without introducing artifacts, allowing for high-fidelity imaging of cells and their processes. The approach capitalizes on the physical properties of excited fluorophores to distinguish useful signals from noise.

Advanced phase-controlled 3D biochemical imaging

Researchers have developed an advanced SRS 3D microscopy called phase-controlled SRS (PC-SRS) for rapid and deep tissue 3D chemical imaging. PC-SRS enables high signal-to-noise ratio, high-speed imaging, and deeper imaging capabilities in highly scattering media.

SourceCompuscript Ltd·JournalOpto-Electronic Advances·DateJul 23, 2024

Seeing inside Alzheimer’s disease brain

Researchers have determined the structure of molecules within an Alzheimer's disease brain for the first time using cryo-electron tomography and fluorescence microscopy. This study revealed the molecular structure of tau protein and its arrangement with amyloid plaques, providing new insights into the pathology of the disease.

SourceUniversity of Leeds·JournalNature·TypeObservational study·DateJul 11, 2024

Novel insights into fluorescent ‘dark states’ illuminate ways forward for improved imaging

Researchers at St. Jude Children's Research Hospital have developed a way to mitigate long-lived triplet dark states in smFRET, significantly increasing the method's resolution for molecular imaging. This advancement enables direct visualization of biomolecules' functions and dynamics, crucial for understanding biological processes and...

SourceSt. Jude Children's Research Hospital·JournalNature Methods·DateJun 14, 2024

Novel diamond quantum magnetometer for ambient condition magnetoencephalography

Researchers have developed a highly sensitive diamond quantum magnetometer that can achieve practical ambient condition magnetoencephalography. The novel magnetometer uses a single crystalline diamond to detect magnetic fields, achieving record sensitivities of up to 9.4 pT Hz-1/2 in the frequency range of 5 to 100 Hz.

SourceTokyo Institute of Technology·JournalPhysical Review Applied·TypeExperimental study·DateJun 6, 2024

A new way to see viruses in action

The team created finely detailed images of the viral RNA and replication structures, revealing spherical shapes around the nucleus of infected cells. The images provide insight into how the virus evades cell defenses and could lead to new therapeutic targets for drug development.

SourceStanford University·JournalNature Communications·DateMay 31, 2024

Illuminating neuro-vascular dynamics throughout the body: 3D-printed implants and bioluminescence duet shed light on brain–spinal interactions

A team of visionaries at the Carney Institute developed 3D-printed brain and spinal cord implants, revolutionizing surgical implantations and optical access. Bioluminescence imaging overcomes limitations of traditional fluorescent microscopy, providing unprecedented observation of neural and vascular activity.

A better view with new mid-infrared nanoscopy

A team at the University of Tokyo has constructed an improved mid-infrared microscope that enables them to see the structures inside living bacteria at the nanometer scale with a resolution of 120 nanometers. This breakthrough can aid multiple fields of research, including into infectious diseases.

SourceUniversity of Tokyo·JournalNature Photonics·TypeExperimental study·DateApr 17, 2024

Scientists develop color-changing dyes that light up cellular activity and enable “time travel” within cells

Researchers have created fluorescent, colour-changing dyes that can visualise multiple distinct biological environments using only one dye. These dyes enable 'time travel' within cells by allowing scientists to distinguish between cellular and delivery vessel environments in real-time. The breakthrough has significant implications for ...

SourceTrinity College Dublin·JournalChem·DateFeb 15, 2024

Bioengineers on the brink of breaching blood-brain barrier

A team of researchers has devised a method to deliver mRNA into the brain using lipid nanoparticles, offering new hope for treating conditions like Alzheimer's disease and seizures. The approach uses a special keycard-like system to bypass the blood-brain barrier, allowing therapeutic agents to enter the brain and target specific cells.

SourceUniversity of Pennsylvania·JournalNano Letters·TypeExperimental study·DateJan 23, 2024

A fork in the rhod: Janelia researchers unveil comprehensive collection of rhodamine-based fluorescent dyes

The Janelia Fluor dyes have become a staple in biology labs worldwide, and the team has now expanded their spectrum with a new set of far-red shifted dyes that can penetrate deeper into tissue. The researchers developed a novel chemistry to synthesize these dyes, enabling them to create dozens of functional versions relatively quickly.

SourceHoward Hughes Medical Institute·JournalJournal of the American Chemical Society·DateDec 8, 2023

New study maps ketamine's effects on brain

A new study published in Cell Reports mapped ketamine's effects on the brains of mice, revealing widespread structural changes in the dopamine system after repeated use. The findings suggest that targeting specific areas of the brain with ketamine therapy could minimize unintended effects.

SourceColumbia University·JournalCell Reports·TypeExperimental study·DateDec 4, 2023

Unveiling a new era of imaging: Boston University engineers lead breakthrough microscopy techniques

Researchers create new methods to visualize and understand samples with increased accuracy and sensitivity. The development of photothermal microscopy, also known as VIP microscopy, enables scientists to probe specific chemical bonds in a specimen, allowing them to map molecules at low concentrations without dye labeling.

SourceBoston University·JournalNature Communications·TypeImaging analysis·DateDec 4, 2023

PicoRuler: molecular rulers for high-resolution microscopy

Researchers have developed PicoRulers, biocompatible molecular rulers for high-resolution microscopy. Using genetic code expansion and click chemistry, the team constructed customized molecular rulers based on the protein PCNA, enabling precise testing of super-resolution microscopy methods on cellular biomolecules.

SourceUniversity of Würzburg·JournalAdvanced Materials·TypeExperimental study·DateDec 1, 2023

Viral impostors: Breakthrough for virus research

Researchers at the University of Würzburg developed a new method to precisely analyze infection pathways of dangerous virus variants using 'clickable' pseudoviruses. These harmless impostors retain their activity and are highly fluorescent, allowing for better visualization of viral infections in living organisms.

SourceUniversity of Würzburg·JournalACS Nano·TypeExperimental study·DateNov 2, 2023