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Biophotonics News
Quantum Dots Deliver Vaccines, Encode Vaccination History in the Skin
CAMBRIDGE, Mass., Jan. 7, 2020 — Using fluorescent quantum dots, an MIT research team has created a way to administer vaccinations and record a patient’s vaccination history in the skin. The researchers developed a microneedle platform that can selectively deliver microparticles into the skin in various patterns, which remain invisible to the naked eye but can be detected in the infrared (IR) using a smartphone that has the IR filter removed. The microparticles contain quantum dots, which store the person’s
Chip-Based Optical Sensor Detects Cancer Biomarker in Urine
ENSCHEDE, Netherlands, Jan. 6, 2020 — Researchers from the University of Twente have used a chip-based sensor with an integrated laser to detect low levels of a cancer protein biomarker in a urine sample. The technology is more sensitive than previous designs and could lead to...
Ghost Imaging Speeds Up Superresolution Microscopy
SHANGHAI, Jan. 6, 2020 — Scientists from the Chinese Academy of Sciences have developed a new imaging technique that produces nm-scale resolution using significantly fewer images than traditional nanoscopy techniques. The scientists used ghost imaging to enhance the imaging...
Brain Integrates Natural, Artificial Vision to Treat Blindness
RAMAT GAN, Israel, Jan. 2, 2020 — Researchers from Bar-Ilan University and Stanford University have reported evidence indicating that the brain knows how to integrate natural and artificial vision while maintaining processing information important to vision. The research shows...
In Vivo Imaging with FLIM Shows Effect of Experience on Neuronal Activity
JUPITER, Fla., Dec. 30, 2019 — Every day, the neuronal connections within our brains change depending on what we learn and experience in our daily lives. Specialized proteins, called activity-dependent transcription factors, activate genes within the cells of the brain to help it...
Fluorescent Dye Helps Detect Reactive Oxygen Species
BATH, England, Dec. 27, 2019 — Scientists at the University of Bath have developed a fluorescent tool for detecting reactive oxygen species based on a chemical found in mushrooms. Reactive oxygen species (ROS), such as free radicals and peroxides, are produced in cells under...
Researchers Find Way to Supercharge Protein Production
ST. LOUIS, Dec. 27, 2019 — Even though scientists have engineered bacteria to make therapeutic proteins, medicines based on these proteins, such as insulin and clotting factors for hemophilia, are still difficult to synthesize in the lab. Now, through the use of green...
Noncontact Laser Ultrasound Safely Images Human Tissue
CAMBRIDGE, Mass., Dec. 24, 2019 — MIT engineers have devised an alternative to conventional ultrasound imaging that doesn’t require contact with the body and can be used on patients who may not tolerate a probe on their body, such as infants, burn patients, or patients with...
Researchers Aim to Build Light-Controlled Tissue Scaffolds for Cell Regeneration
AARHUS, Denmark, Dec. 19, 2019 — Researchers at Aarhus University are exploring a method of regenerating brain and heart cells using light. Their technique uses water-based nanofibers coated with organic photovoltaic nanomaterials to create light-controlled neural-stimulating...
Photoacoustic Microscopy System Improves SNR, Resolution
POHANG, South Korea, Dec. 17, 2019 — A superresolution localization photoacoustic microscopy (PAM) technique has been developed by a team at Pohang University of Science and Technology (POSTECH). The new system can monitor the flow of red blood cells without using a contrast absorber,...
Fiber Optic-Based Sensor Measures pH Levels in Cell-Growth Environments
GAITHERSBURG, Md., Dec. 16, 2019 — Scientists at the National Institute of Standards and Technology (NIST) are developing a photonic sensor to study tissue growth in the lab. The proof-of-concept sensor uses a light-based signal to measure pH, an important property in cell-growth...
Thermal Cameras Detect Rheumatoid Arthritis When Symptoms Are Absent
STAFFORDSHIRE, England, Dec. 11, 2019 — Thermal imaging could be an effective method for assessing rheumatoid arthritis (RA), according to a study performed at Staffordshire University. The study sought to determine whether RA patients without active inflammation in their hands exhibited...
EMBL and Leica Microsystems Sign Open Collaboration Agreement
HEIDELBERG, Germany, Dec. 6, 2019 — The European Molecular Biology Laboratory (EMBL) and Leica Microsystems have signed a framework agreement allowing for a broad and long-term partnership to provide new imaging technologies. Leica Microsystems is the first company to partner with the...
Nontoxic Material Used to Upconvert Low-energy Photons
RIVERSIDE, Calif., Dec. 6, 2019 — Researchers at the University of California, Riverside (UC Riverside) and the University of Texas at Austin demonstrated the use of nontoxic silicon nanocrystals to convert low-energy photons into high-energy ones. The use of nontoxic materials for...
System Uses Artificial Intelligence for Placental Analysis
UNIVERSITY PARK, Pa., Dec. 4, 2019 — Placentas can provide critical information about the health of the mother and baby; yet, in the U.S., only about 20% of placentas are assessed by pathology exams after delivery. A new approach from researchers at The Pennsylvania State University...
Tapered Optical Fiber Performs Multisite Photometry in the Brain
LECCE, Italy, Nov. 26, 2019 — Researchers from Istituto Italiano di Tecnologia (IIT), the University of Salento, and Harvard Medical School have developed a light-based method to capture and pinpoint neural activity in the brain. The new method allows signals from various brain...
2020 SPIE-Franz Hillenkamp Postdoctoral Fellowship Awarded
BELLINGHAM, Wash., and CARDIFF, Wales, Nov. 26, 2019 — SPIE has announced Fernando Zvietcovich as the winner of the 2020 SPIE-Franz Hillenkamp Postdoctoral Fellowship in Problem-Driven Biomedical Optics and Analytics. Zvietcovich, currently a Ph.D. candidate at the University of Rochester, will receive...
Smart Microscope Teaches Itself Settings for Diagnosing Disease
DURHAM, N.C., Nov. 25, 2019 — Engineers at Duke University used machine learning to develop a microscope capable of adapting its lighting angles, colors, and patterns while teaching itself the optimal settings needed to complete a diagnostic task. In a proof-of-concept study,...
Collaborative Work Advances Quantum Sensors for Bio Applications
ROME, Nov. 25, 2019 — A research team at Università degli Studi Roma Tre has shown that quantum light can be used to track enzyme reactions in real time. The researchers developed a setup that allowed them to control the light at the level of a single photon. This made...
Scientists Make Vampire Bats Glow to Simulate Vaccine Spread
ANN ARBOR, Mich., Nov. 26, 2019 — University of Michigan scientists and their colleagues used glowing fluorescent gel to test the potential effectiveness of vaccines to control rabies and other diseases in wild bats. The study, originally published in the journal Nature Ecology...
Ghost Imaging Captures Clear Reconstructions of Moving Objects
CHANGSHA, China, Nov. 18, 2019 — Researchers at the National University of Defense Technology (NUDT) have used ghost imaging to capture an image of a moving object. The new method, which creates clear reconstructions by combining information found in the blurry images of a moving...
Inexpensive, Portable System Expands OCT's Reach in the Body
DURHAM, N.C., Nov. 15, 2019 — Researchers from Duke University have developed a way to use optical coherence tomography (OCT) in hard-to-reach areas of the body such as joints. The method may allow the technique to see use in further surgical and medical applications. The...
Researchers Explore How Light Affects Circadian Rhythms in Insects
IRVINE, Calif., Nov. 14, 2019 — University of California, Irvine (UCI) researchers have explored how UV, blue, and red light affect the central brain neurons that allow circadian clock timing to be reset. The researchers found that blue and UV light create a sustained light...
Raman Scattering Helps Ensure Safety of Stem Cell Therapies
NEW BRUNSWICK, N.J., Nov. 12, 2019 — A research team at Rutgers University has developed a biosensor technology that could benefit applications for the treatment of neurological disorders through stem cell therapy. The hybrid biosensing platform consists of an array of ultrathin...
Center for Biomedical Imaging Celebrates 15th Anniversary
LAUSANNE, Switzerland, Nov. 12 — The Center for Biomedical Imaging (CIBM) in Switzerland is celebrating its 15th anniversary with the appointment of a new executive director and a statement of its future research priorities. Since its founding in 2004, CIBM has focused on...
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July 2024
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