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Biophysical Society Annual Meeting

The 61st Annual Meeting of the Biophysical Society starts this coming Saturday, February 11th at the Ernest Morial Convention Center in beautiful New Orleans! Come find us at Booth 431 and see our latest Eclipse Ti2 inverted microscope and other imaging solutions. Also make sure to get your own Ti2 TICO brick model!

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Functionally and Morphologically Damaged Mitochondria Observed in Auditory Cells Under Senescence-Inducing Stress

What role do mitochondria play in the premature senescence of auditory cells? New research in npj Aging and Mechanisms of Disease finds that short H2O2 treatment of auditory cells leads to a decrease in mitochondrial membrane potential and fusion/fission imbalance, providing evidence for the interdependence of these factors in premature senescence. Super-resolution imaging of mitochondria was performed using a Nikon N-SIM structured illumination system.

Learn More @ npj Aging and Mechanisms of Disease

Elevated-Temperature-Induced Acceleration of PACT Clearing Process of Mouse Brain Tissue

Tissue optical clearing techniques have become an important method for neural imaging. New research in Scientific Reports details an optimized protocol for the Passive Clarity Technique (PACT), finding 42-47oC incubation is optimal for producing faster clearing while preserving fluorescence. Imaging for this study was performed in part using a Nikon A1R-MP multiphoton system with 16x water dipping objective (NA=0.8).

Learn More @ Nature Scientific Reports

Physicists Doubt Bold Report of Metallic Hydrogen

Did two physicists just succeed in creating metallic hydrogen? Researchers at Harvard University just published a report in Science presenting evidence of this achievement. Polished diamonds were used to apply 495 GPa of pressure (higher than the pressure at the center of the Earth) to hydrogen gas, seemingly resulting in a new metallic form of hydrogen that has yet to be observed. If true, this material could have an array of potential applications, including as a room temperature super conductor.

Learn More @ Nature

The Spatiotemporal Limits of Developmental Erk Signaling

Researchers at Princeton University have published a new article in Developmental Cell demonstrating optogenetic control of Erk signaling in vivo using patterned illumination from a Digital Micro-mirror Device (DMD). They found that development is very robust to ectopic Erk signaling except from 1-4 hours post-fertilization. Fluorescence imaging was performed using both a Nikon A1-R resonant scanning confocal microscope and a Nikon Ti-E with spinning disk and DMD for optogenetics experiments.

Learn More @ Developmental Cell

Multiplexing PKA and ERK1&2 Kinases FRET Biosensors in Living Cells Using Single Excitation Wavelength Dual Colour FLIM

An open-access research article in Scientific Reports details a new approach to multiplexing FRET biosensors for kinase activity (PKA and ERK1&2) in living cells using only a single excitation wavelength for simultaneous dual-color FLIM. LSSmOrange-mKate2 and mTFP1-ShadowG were the FRET pairs chosen, both donors excited by 440 nm light and all probes being spectrally separate. Sensitized emission measurements were made using a Nikon Ti-E inverted microscope with Nikon DS-Qi2 sCMOS camera.

Learn More @ Nature Scientific Reports

Nikon Small World Call for Entries

Many of you are likely familiar with our annual Nikon Small World photomicrography competition, but this year is extra special…

In celebration of Nikon’s 100th anniversary the Small World grand prizewinners will receive $3000 and an all-inclusive trip to Japan, joining us as our special guests at the Nikon Worldwide Headquarters. The lucky winners (and their lucky companions) will also receive a private tour of Nikon’s glass and lens manufacturing facilities. Learn more and submit your winning image today!

Learn More @ Nikon Small World

Nikon 100th Anniversary

This is a special year for Nikon. We are humbled to be celebrating our 100th anniversary. From cameras to lithography to microscopy, Nikon strives to illuminate our world. Please check out our special 100th anniversary site and commemorative movie detailing both our past and vision for the future.

Learn More @ Nikon

Nikon Instruments Is Hiring!

Are you looking for a career with a dynamic and fast-growing organization? Nikon Instruments is looking for a Bioscience Consignment & Trade Show Administrator. Key responsibilities of this position include coordinating equipment for tradeshows, workshops, and more. This is a great opportunity for non-specialists with strong organizational skills and who are available to travel to learn about optical microscopy and the medical device industry. To learn more and to apply, please visit our careers page.

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Non-Invasive, Focused Ultrasound-Facilitated Gene Delivery for Optogenetics

Researchers at Columbia University have published a new open-access article in Scientific Reports describing a non-invasive gene delivery method for optogenetic experimentation. Lipid microbubble-encapsulated adeno-associated virus (carrying Channelrhodopsin-2 gene) in the blood is introduced into the brain by using transcranial-focused ultrasound (FUS) to transiently breach the blood-brain barrier. Imaging was performed with a Nikon laser scanning confocal microscope.

Learn More @ Nature Scientific Reports

Scientists Tissue-Engineer Part of Human Stomach in Laboratory

Check out this report about researchers at Cincinnati Children's Hospital Medical Center who successfully created stomach fundus tissue in the lab using human pluripotent stem cells. Their research, published in Nature, demonstrated that the tissue was able to produce stomach acid and digestive enzymes, indicating high potential for use as a model system. Imaging was performed using a Nikon A1Rsi resonant-scanning confocal microscope with spectral detector.

Learn More @ Cincinnati Children's Hospital Medical Center

Collective Resistance in Microbial Communities by Intracellular Antibiotic Deactivation

Researchers at the UC San Diego and University of Groningen have published an open-access article in PLOS Biology that provides proof for a mechanism of collective resistance in microbial communities via intracellular antibiotic deactivation. Deactivation of the antibiotic chloramphenicol by resistant bacteria dropped the overall concentration in the growth medium to the point that non-resistant bacteria began to proliferate and even outcompete resistant cells. Live cell imaging was performed with a Nikon Ti-E inverted research microscope.

Learn More @ PLOS

MicroRNAs-103/107 Coordinately Regulate Macropinocytosis and Autophagy

Researchers at Northwestern University Feinberg School of Medicine have demonstrated that the microRNA-103/107 family regulates macropinocytosis and end-stage autophagy in the stem cell-enriched limbal epithelium of the eye. Their research, published in the Journal of Cell Biology, found that loss of microRNA-103/107 results in dysregulation of macropinocytosis and formation of large vacuoles. In collaboration with Josh Rappoport of the Nikon Imaging Center at Northwestern, vacuole morphology was characterized using the Nikon N-SIM super-resolution system.

Learn More @ Journal of Cell Biology

3-D Microwell Array System for Culturing Virus Infected Tumor Cells

New open-access research in Scientific Reports details a 3D microwell array system for culturing human tumor cells infected with Kaposi’s sarcoma-associated herpesvirus (KSHV). Cells grown in 3D had higher KSHV genome copy numbers than those grown in 2D control (measured by fluorescence microscopy) and higher rates of lytic reactivation, providing a more physiologically relevant model for infection. Live cell imaging was performed using a Nikon Ti-U inverted fluorescence microscope.

Learn More @ Scientific Reports

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