Bio Photonics Research

Researchers at the University of California, Davis, have shrunk a lab-grade spectrometer down to the size of a grain of sand, making a tiny spectrometer-on-a- chip  that can be integrated into portable devices. The solution addresses the bottleneck posed by the long physical path that results from obtaining measurement of the intensity of each color. The use of a prism or grating, and the long physical light path, makes spectrometers inherently bulky. “We wanted to take this power [of a spectrometer] out of the lab and put it in your pocket,” said Ahasan Ahamed, a postdoctoral scientist in the lab of Saif Islam, professor and chair of the Department of Electrical and Computer Engineering, and the corresponding paper’s first author.  In the current work, instead of physically separating each color, the device uses 16 distinct silicon detectors, each engineered to respond slightly differently to incoming light. This is analogous to giving a handful of specialized sensors a mixed...

  Abstact Biophotonics has emerged as a transformative interdisciplinary field combining optics, nanotechnology, and biomedical engineering to enable highly sensitive diagnostic and therapeutic technologies. Recent advances in nanostructured photonic materials and artificial intelligence (AI)-driven signal analysis have significantly improved imaging resolution, disease detection accuracy, and targeted therapeutic delivery. This research proposes an integrated biophotonic platform based on plasmonic nanostructures, multimodal optical sensing, and AI-assisted data interpretation for early-stage disease diagnostics and precision phototherapy. Experimental simulations demonstrate enhanced photon–tissue interaction efficiency, leading to improved sensitivity in detecting cellular-level abnormalities . The proposed system offers a scalable and non-invasive approach suitable for real-time clinical applications, particularly in oncology, cardiovascular disease monitoring, and infectiou...

  As quantum computers continue to advance, many of today’s encryption systems face the risk of becoming obsolete. A powerful alternative—quantum cryptography—offers security based on the laws of physics instead of computational difficulty. But to turn quantum communication into a practical technology, researchers need compact and reliable devices that can decode fragile quantum states carried by light. A new study from teams at the University of Padua, Politecnico di Milano, and the CNR Institute for Photonics and Nanotechnologies shows how this goal can be approached using a simple material: borosilicate glass.   As reported in  Advanced Photonics , their work demonstrates a high‑performance quantum coherent receiver fabricated directly inside glass using femtosecond laser writing. The approach provides low optical loss, stable operation, and broad compatibility with existing fiber‑optic infrastructure—key factors for scaling quantum technologies beyond the laboratory....

  Yuehan Liu is a fifth-year doctoral candidate affiliated with the   Biophotonics Imaging Technology Lab (BIT)   advised by   Xingde Li . She recently gave a talk at   SPIE Photonics West BiOS   entitled "Two-photon fiberscope with a proactive optoelectrical commutator for rotational resistance-free neuroimaging in freely-behaving rodents." Her talk focused on the recent progress of non-invasive imaging technologies that could revolutionize the study of brain function and diseases. Biophotonics   is an interdisciplinary field that applies   photonics   — the branch of physics dealing with the creation, transmission, manipulation and reception of light — to biology-related studies, particularly in neuroscience. At the core of biophotonics is the use of photons and optical imaging techniques to study cells and tissue. Unlike   traditional biopsy , which requires the extraction of sample cells for examination, biophotonics allows...

  Antibiotic resistance (AR) has steadily accelerated in recent years to become a global health crisis. As deadly bacteria evolve new ways to elude drug treatments for a variety of illnesses, a growing number of "superbugs" have emerged, ramping up estimates of more than 10 million worldwide deaths per year by 2050. Scientists are looking to recently developed technologies to address the pressing threat of antibiotic-resistant bacteria, which are known to flourish in hospital settings, sewage treatment areas, animal husbandry locations, and fish farms. University of California San Diego scientists have now applied cutting-edge genetics tools to counteract antibiotic resistance The laboratories of UC San Diego School of Biological Sciences Professors Ethan Bier and Justin Meyer have collaborated on a novel method of removing antibiotic-resistant elements from populations of bacteria. The researchers developed a new CRISPR-based technology similar to gene drives, which are b...

  Sensitive detection and imaging in bio-microenvironment is highly desired in biophotonic and biomedical applications. However, conventional photonic materials inevitably show incompatibility and invasiveness to bio-systems. To address this issue, Scientists in China reviewed recent progresses of biophotonic probes, including bio-lasers, biophotonic waveguides, and bio-microlenses, made from biological entities with inherent biocompatibility and minimal invasiveness, with applications for bio-detection and imaging. These biophotonic probes open up entirely new windows for biophotonic researches and biomedical applications. The rapid development of biophotonics and biomedical sciences makes a high demand on photonic structures that are capable of manipulating light at small scales for sensitive detection of biological signals and precise imaging of cellular structures in bio-microenvironment. Unfortunately, conventional photonic structures based on artificial materials (either i...

  Raman spectroscopy is an essential technique used in the study of materials – including nanostructures – and biological systems to analyse their composition. Its applications range from the medical industry to planetary explorations. Despite their popularity as a non-destructive, fast and efficient tool for the identification and verification of various substances, Raman spectrometers have historically been bulky and expensive. In an effort to make them smaller, affordable and capable of delivering actionable results, an initiative under the EU-funded IoSense project has developed a new system with an on-chip technology. It can be used to produce handheld scanners or even be incorporated into a smartphone. A news release by project partner Interuniversitair Micro-Electronica Centrum (imec) states that existing handheld products in the market "fail to reach the desired performance for high-end applications largely because of the limited scaling capacity of conventional dispersiv...