Articles tagged with Fluorescence
Researchers developed a bioorthogonal fluorescence probe and matching reporter enzyme that selectively activates at targeted tumor sites, enabling high-contrast tumor visualization with minimal background. This technology has potential for improving cancer surgery outcomes and may also be adapted for targeted drug delivery.
Researchers developed MAPPI, a system that enables real-time visualization of how a plant's leaves, stem, and roots communicate with each other in response to environmental stress. The system reveals bi-directional communication between leaves and roots, overcoming limitations of traditional microscopy.
Researchers have engineered gut bacteria that dim their fluorescent glow in the presence of illness, allowing for early detection of gut conditions. The developed biosensor can provide continuous monitoring through stool samples and pick up subtle changes in gut health before symptoms develop.
Researchers at IOCB Prague developed a new type of fluorescent label that provides higher-contrast and clearer images in living cells. This innovation reduces the need for repeated washing and minimizes excess dye binding, making it more cost-effective and efficient for studying cellular processes.
The study reports the synthesis of two novel boron-hexane Z-type and bilayer benzobenzenes, exhibiting narrow-spectrum fluorescence and amplified spontaneous emission properties. The researchers demonstrate their potential application as gain mediators in luminescent functions and spin properties.
A novel optical microneedle device developed by researchers can quantify glucose levels in ultra-trace samples with high precision, offering a potential solution for blood-sampling-free clinical testing. The device features a functional hydrogel at its tip that reversibly binds to glucose, enabling accurate analysis without consuming t...
Researchers at Rice University have developed a 'molecular magnifying glass' that allows them to visualize subtle environmental changes in proteins, which can indicate the earliest stages of diseases such as Alzheimer's, Parkinson's and cancer. This tool provides real-time monitoring of protein microenvironment changes in living cells.
Researchers developed an organic molecule that simultaneously emits light suitable for displays and absorbs photons for deep-tissue bioimaging, overcoming a long-standing design challenge. The compound achieved high efficiency in both applications, paving the way for next-generation multifunctional materials.
Scientists have developed a novel technique to track the behavior of cellulose nanofibers by conjugating water-compatible fluorescent amino acids, enabling easy viewing without background signals or disruptions. The method uses a covalent bond to increase stability and visibility, opening up opportunities for various fields of study.
Scientists create a new class of mechanochromic mechanophores that can detect and respond to mechanical stress in polymeric materials through fluorescence. The developed molecule exhibits excellent stress-sensing with high durability, offering a powerful tool for real-time monitoring of mechanical damage.
A novel fluorescent probe, SLY, has been developed to precisely identify hepatocellular carcinoma tissue using sialylated glycans on the cell surface. The probe outperforms conventional methods by clearly distinguishing tumor margins within liver tissues.
Researchers at the University of Illinois developed cryosoret nanoassemblies that enhance fluorescence signals, reducing detection limits for biomarkers. The new platform offers dual-mode interaction between electric and magnetic components of light, promising highly sensitive and tunable biosensing systems.
The histone modification H3K4me3 is crucial for chromosome and spindle stabilization, normal oocyte development, and embryonic competence. Removing H3K4me3 leads to destabilized spindles, impaired embryonic development, and decreased fertility.
Scientists from Institute of Science Tokyo successfully solubilize porous aromatic polymers (PAPs) in water using aromatic micelles, forming giant polycavity materials with high incorporation functions. The method enables the preparation of rare multi-component materials with potential applications in advanced functional materials.
The study compares X-ray spectra from different excitation sources, including electrons and photons, to analyze the spectral differences in copper and tungsten. The results show that the intensities of certain lines remain constant across excitation methods, providing insight for interpreting spectral data.
Researchers designed a new chiral aminoborane molecule with persistent room-temperature phosphorescence and circularly polarised luminescence, ideal for anti-counterfeiting inks, bioimaging agents, and security tags. The molecule's rigid structure suppresses non-radiative decay, enabling long-lived emission.
A portable device can instantly detect dangerous street drugs at extremely low concentrations, highlighting their dangers. The device, being trialled by drug-checking services in the UK, Norway, and New Zealand, allows for cheap and on-the-spot analysis of substances.
Researchers developed fluorescent polyionic nanoclays that can be customized for medical imaging, sensor technology, and environmental protection. These tiny clay-based materials exhibit high brightness and versatility, enabling precise tuning of optical properties.
A recent study published in The Wilson Journal of Ornithology reveals that Long-eared Owls have fluorescent pigments in their feathers that can only be seen under ultraviolet light. The amount of pigment varies within a population and is correlated with age, sex, and size, suggesting alternative functions beyond sexual signaling.
Researchers enhance organic scintillators' light yield by introducing charge-separated state traps, achieving higher LY than traditional inorganic scintillators. The resulting scintillator displays a super-long afterglow for 7 hours, enabling new non-destructive testing methods.
Scientists are using fluorescent features in caves to understand how life is supported in extreme environments. The research, presented at the American Chemical Society Spring meeting, explores the chemistry behind these unique formations and their potential applications in astrobiology.
Scientists developed a novel solvatochromic fluorescent dye that enables high-precision temperature measurements through changes in fluorescence properties. The researchers achieved exceptional sensitivity and resolution, ideal for bioimaging applications.
A new universal photocage modification strategy based on thioketal enables real-time live cell subcellular imaging. The thioketal-based probe SiR-EDT exhibits improved dark stability and can be specifically activated by UV-visible light.
Researchers have found biofluorescence in 37 of the 45 known birds-of-paradise species, suggesting it plays a crucial role in male-male interactions and mating displays. The phenomenon is most prominent in males' bright plumage and skin areas highlighted during courtship displays.
Researchers found low-configuration spectrometers matched high-end models in measuring solar-induced chlorophyll fluorescence and tracking crop growth. This breakthrough makes ecosystem and agricultural monitoring more accessible and scalable.
A new study has identified macrophage activity as a key predictor of which skin cancer patients are most likely to respond to immunotherapy. The findings aim to improve personalized medicine for cancer patients and enable clinicians to select effective treatments, reducing side effects and costs.
Recent research at Shinshu University explores how molecular structure and geometry influence light emission in aggregation-induced emission molecules. The study reveals that changes in molecular shape affect emission behavior in both solution and solid states, enabling innovations in material design and energy interactions.
ChromaTwist has secured a £0.5M Innovate UK Smart grant to enhance its novel dyes for improved bio-imaging. The funding will boost the company's technical development and scale-up for commercial launch.
The study combines AI with fluorescence photography to enhance skin diagnostics, allowing for earlier detection of skin conditions such as acne, photoaging, and hyperpigmentation. AI can pinpoint early indicators of skin conditions with greater accuracy and monitor changes over time for data-driven decisions.
A new study developed an innovative approach to combat antibiotic-resistant bacteria by tagging them with a chimeric agent that activates the immune system towards them. This tagging technique helps the immune system recognize and eliminate elusive pathogens, offering a promising new direction for fighting drug-resistant infections.
Researchers developed a new biocompatible sensor substrate enhancing fluorescent tags without disrupting cell function. The Ag nanoislands protected by silica overlayer increase signal ten million times, suitable for environmental pollutant detection and medical diagnosis.
Newly developed tools enable selective labeling and manipulation of synapses, advancing understanding of learning, memory, and neurological disorders. The review highlights promising molecular actuators and optogenetic approaches to unravel synaptic function mysteries.
A new fluorescence detection system can detect fluorescent proteins from bacteria in water down to levels of less than one part per billion, meeting the World Health Organization’s criteria for detecting fecal contamination. The lensless fluorometer reduces device cost, size and weight while providing better performance.
The team created microbeads that emit various colors of light depending on the illuminating light and bead size, offering a wide range of applications. The use of plant-derived materials allows for low-cost and energy-efficient synthesis, making them an attractive alternative to conventional luminescent devices.
Scientists at Kyushu University created QDyeFinder, an AI pipeline that untangles the dense neuronal networks in the brain. The system uses a super-multicolor labeling protocol to tag neurons and then automatically identifies their structure by matching similar color combinations.
The researchers developed a novel viral reporter system called HIV-Tocky, which allows for real-time visualization of HIV dynamics post-viral infection. This innovation provides crucial insights into HIV-1 latency mechanisms and establishes a foundation for developing eradication strategies.
A new sensor has given unprecedented look at changes in cell's energy currency, allowing researchers to study fluctuations in ATP levels. This enables scientists to track how changes in ATP affect the cell and contribute to diseases like Parkinson’s.
Scientists developed a novel solvatochromic probe to study lipid membrane fluidity and its correlation with cellular functions. The new dye offers exceptional stability, low toxicity, and fluorescent properties, allowing real-time visualization of lipid membrane order during complex processes.
A new tool called Subak, made from silver nanoclusters, can detect nuclease digestion at lower costs than traditional methods. This innovation could strengthen diagnostics and make diseases easier to detect.
Researchers at RIKEN CSRS have created a self-healing material that can emit high levels of fluorescence when absorbing light, leading to improved durability for organic solar cells. The material's unique structure allows it to self-repair without external stimuli or energy, making it suitable for various environments.
A rapid diagnosis protocol using a luminescent paper-based platform has been developed to detect the presence of antibiotic-resistant bacteria. The approach uses a supramolecular hydrogel matrix containing terbium cholate that emits green fluorescence when UV light is shined on it.
Scientists investigated the photoluminescence properties of toroidal and randomly coiled supramolecular polymers. The study found that a closed circular structure led to higher energy and more efficient luminescence compared to random coils, which lost excitation energy due to defects.
Researchers developed a compact microscope using a single photon avalanche diode array detector, enabling super-resolution imaging with improved signal-to-noise ratio and spatial resolution. The system also combines fluorescence lifetime measurements for enhanced structural specificity.
Researchers at Rice University have mapped the diffusion of graphene and hexagonal boron nitride in an aqueous solution, a crucial step towards larger-scale production of these 2D materials. The study found that the size of the material affects its movement speed, with hexagonal boron nitride moving faster than graphene.
Researchers develop a versatile imaging system for targeted spectroscopy in the eye fundus, allowing for continuous color imaging and spectral measurements. The system enables users to select targets and move them to any location within the eye fundus region without realignment or fixation changes.
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.
Scientists develop antiaromatic molecules that exhibit absorption and fluorescence bands in the near-infrared region, enabling deep biological imaging and photothermal therapy. This breakthrough holds potential for diverse NIR luminescent materials and applications in fields like healthcare, optoelectronics, and materials science.
Researchers developed CL-iSCAT Microscope to visualize cargo trafficking in living cells, revealing traffic jams and collective migration. The technology enables real-time observation of millions of cargos, deepening understanding of cellular biology and potential medical discovery.
Researchers at Gwangju Institute of Science and Technology developed metal-enhanced fluorescence probes for rapid and accurate detection of influenza viruses. The probes showed high sensitivity and specificity, detecting the virus even at low concentrations, with a remarkable accuracy of over 99%.
Researchers from Tokyo Tech have developed an organic light-emitting diode (OLED) with a remarkable ultralow turn-on voltage of 1.47V for blue emission. The device uses upconversion mechanism to reduce applied voltage, enabling efficient blue OLED production.
Researchers developed a new imaging technique using Bessel beam two-photon microscopy to detect stalling in brain capillaries, which can indicate acute neurological issues. The approach generates clear images of all capillaries every two seconds, providing better temporal resolution and enabling the detection of short stalling events.
Researchers have developed a new method to study the inner workings of cell nuclei during embryonic stem cell differentiation. By using fluorescent proteins, they found that biomaterials become more uniformly distributed as cells mature, resembling oil droplets in water, but with intriguing complexities.
The study reveals a quantum switching mechanism of LHCII, which regulates energy transfer quantum channel in response to lateral pressure and conformational change. This mechanism enables high efficiency in photosynthesis and balanced photoprotection.
A new chemosensor-based system rapidly detects bacterial lipopolysaccharide in minutes, offering a safer alternative to existing methods. The system's high throughput, sensitivity, and stability make it suitable for point-of-care testing and real-life applications.
Scientists have developed a new method to study phytoplankton nutrient limitations using satellite remote sensing technologies, providing insights into the global ocean's carbon cycle. The research found that phytoplankton were limited by either iron or nitrogen, leading to distinct fluorescence signals detected by satellites.
Researchers create a nanocapsulation strategy to solubilize insoluble aromatic polymers in water, enhancing their processing and development. The approach uses bent aromatic amphiphiles to form micelle-like nanocapsules that encapsulate hydrophobic molecules.
The researchers have demonstrated significant improvements for chip-based sensing devices that can detect or analyze substances across widely varying concentrations. They developed signal-processing techniques that enable seamless fluorescence detection of a mixture of nanobeads in concentrations across eight orders of magnitude.
A team of researchers at IISc has designed a small molecular fluorogenic probe that can sense Acetylcholinesterase (AChE), an enzyme linked to the progression of Alzheimer's disease. The probe is designed to detect AChE levels in the early stages of the disease, which become imbalanced.
Researchers developed a novel endoscopic imaging system with a bioinspired sensor that can detect multiple fluorescent probes, enabling more accurate fluorescence-guided cancer surgery. The system showed improved spatial resolution and sensitivity in detecting tumors, paving the way for the adoption of multi-tracer FGS.
Researchers used microscopy techniques to study polyfluorene chains and found that intra-chain aggregation causes green emission, which disappears when the chain unfolds. The team also discovered a novel optomechanical force acting on some chains, originating from van der Waals interactions and excitonic coupling.