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12 applications found
These 10 μm images (AFM topography and PiFM) are being acquired as azobenzene surface is being modified via UV light illumination over a 15-hour period. The PiFM image at 1100 cm-1 shows that as the surface roughens, the magnitude of this peak is growing smaller. At the same time, PiFM signal at 1693 cm-1 is getting stronger at some regions of the sample, especially at the lower regions of the surface ...
ByMolecular Vista based in San Jose, CALIFORNIA (USA)
In this example, Everaert et al. study the survival and homing capacity of BMSCs in a hindlimb ischemia mouse model in the presence or absence of immunosuppression treatment (CsA). Different injection routes are tested: intramuscular (IM) and intra-arterial ...
ByMauna Kea Technologies based in Paris, FRANCE
Incorporating nanocrystalline cellulose (NCC) into polyacrylonitrile (PAN) fiber changes the tensile property of PAN fiber. The goal is to identify the distribution of NCC on PAN fiber. The peaks associated with NCC are acquired by taking PiFM spectra of pure NCC sample. The NCC peaks compared to the glass substrate are clearly identified. These peaks are used to bring out the subtle features from the hyPIR image taken of the PAN-NCC sample. Note that the strengths of peaks are as such: strong (1034, 1059, 1273 ...
ByMolecular Vista based in San Jose, CALIFORNIA (USA)
The longitudinal focal field of a tightly focused light via high NA (1.45 NA) objective lens is imaged via PiFM. The measured PiFM result agrees well (slight mismatch is observed due to the uncorrected nonlinearity of open-loop tip scanner) with the longitudinal field calculated from the dipole-dipole interaction between the polarized tip and the glass substrate. Scale bar: 1 micron. Image Courtesy: Ananth Tamma (PiFM image) and Fei Huang (field model), UC ...
ByMolecular Vista based in San Jose, CALIFORNIA (USA)
Identifying Components in Polymer Films via hyPIR Imaging. hyPIR (hyperspectral PiFM infrared) image consists of (n x n) pixels of PiFM spectrum. This is a hyPIRTM image (128 x 128 pixels) of 5 nm of PS homopolymer that is spin-coated onto a 2 nm thick PMMA homopolymer on top of silicon substrate. Due to the thin PS layer and its immiscibility with PMMA, PS has dewetted into nanoscale droplets. Up to three distinct region of a hyPIRTM image can be selected to average the spectra for each region. Up to three peaks ...
ByMolecular Vista based in San Jose, CALIFORNIA (USA)
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Every year over 400 million metric tons of plastic are produced globally for use in many applications, including construction, home appliances, medical instruments, and food packaging. Spectroscopy characterizes many important parameters associated with polymers and plastics ...
ByB&W Tek based in Plainsboro, DELAWARE (USA)
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Surface Enhanced Raman Spectroscopy or SERS is a specialized Raman technique that enhances the Raman scattering efficiency through the use of nanoparticles in solution or a treated surface. SERS improves the detection limit of Raman to the part per billion level and beyond for some ...
ByB&W Tek based in Plainsboro, DELAWARE (USA)
Use Cellvizio Lab to perform longitudinal studies on the peripheral nervous ...
ByMauna Kea Technologies based in Paris, FRANCE
Longitudinal imaging of pancreatic cancer. Monitor in a minimally invasive manner both tissue morphology and fibrosis (fluorescein) and cathepsin activity (Prosense® 680). A very thin probe (S 650) was used to monitor the pancreas of the same mouse over 9 months. ...
ByMauna Kea Technologies based in Paris, FRANCE
In this example, the aggregation of magnetic nanoparticles labeled with DiR is monitored in real time. Tumor microvasculature is labeled using ...
ByMauna Kea Technologies based in Paris, FRANCE
Polymers and plastics can be conveniently studied using FTIR. Different ways of preparing and analysing the samples exist depending on the analytical need. Specac's range of FTIR accessories can easily cater to a wide range of these ...
BySpecac based in Orpington, UNITED KINGDOM
Infectious diseases are caused by pathogenic microorganisms such as bacteria, viruses, fungi or prions. Thanks to scientific advances in microbiology, host-pathogen interactions, and drug development, many of these infections can now be controlled or cured. Despite great efforts and the development of advanced technologies to investigate infectious agents, there are still many open questions regarding pathogen life cycles, how they cause disease and how can they be ...
ByONI based in Oxford, UNITED KINGDOM