Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Free imaging

A series of advances over the past decade have made CRS microscopy a highly sensitive tool for label-free imaging and vibrational microspectroscopy that is capable of real-time, non-perturbative studies of complex biological samples based on molecular Raman spectroscopy. In particular, biomedical applications where fluorescent labeling of small molecules represents a severe pertur-... [Pg.144]

Vetter, D. Chemical microarrays, fragment diversity, label-free imaging by plasmon resonance - a chemical genomics approach. Journal of Cellular Biochemistry 2002, 87, 79-84. [Pg.116]

Li PY, Lin B, Gerstenmaier J, Cunningham BT (2004) A new method for label-free imaging of biomolecular interactions. Sensors Actuators B Chem 99 6-13... [Pg.53]

Download free images and buy others from our constantly growing image bank... [Pg.792]

As mentioned in Section 3.1.2, attractive UV sources for lithography are those that produce high power and poor spatial and temporal coherence. Jain and co-workers (13-15) demonstrated that excimer lasers provide excellent quality, speckle-free images with resolution to 0.5 xm in a contact mode. The images were obtained in l- xm-thick diazoquinone photoresists such as AZ2400 with a XeCl laser at 308 nm and a KrF laser at 248 nm... [Pg.200]

Fig. 3 Transaxial slices reconstructed with filtered back projection (top row) and iterative reconstruction (bottom row). Negative reconstructed values have been set to zero for the filtered back projection reconstruction. The streak artifacts and count defects caused by focal activity deposition in the central airways are clearly evident on the reconstructions with filtered back projection. The iterative reconstruction provides artifact free images. Fig. 3 Transaxial slices reconstructed with filtered back projection (top row) and iterative reconstruction (bottom row). Negative reconstructed values have been set to zero for the filtered back projection reconstruction. The streak artifacts and count defects caused by focal activity deposition in the central airways are clearly evident on the reconstructions with filtered back projection. The iterative reconstruction provides artifact free images.
Microemulsion microstructures are best imaged by cryo-TEM. A description of sample preparation methods with a view to obtaining direct and artifact-free images is described in this section as it is the key to microscopy. [Pg.417]

This is another form of lens-free imaging scheme, where the object to be imaged is placed exactly on top of the sensor or camera. In 2005, Lange et al. [2] created a microfluidic imaging device that captured the shadow of a specimen placed over a CMOS sensor. One of the requirements for this method is that the light needs to be collimated so that the image does not get blurred. The distance between the source and the object also has an adverse effect on the image quality. [Pg.2562]

Since the use of optofluidically developed lenses and sources does not seem to be feasible in building an imaging system, in this section we will focus on lens-free imaging systems. [Pg.2562]

For optical microscopy of fracture surfaces usually little or no surface preparation is necessary. However, because plastics have poor electrical conductivity, for SEM examinations the sample surface generally needs to be coated with a conductive layer that prevents charging and heating. The energy carried into the sample can melt the polymer or vaporize low molecular contents locally and change the fracture surface irreversibly, making its interpretation impossible. On the other hand, to ensure artifact-free imaging, the applied layer itself must not have any visible structure and must be so thin that the structures on the surface are not hidden. [Pg.3404]

Homogeneous image quahty across the entire image area resulting in distortion-free images and position-independent spatial resolution. [Pg.35]


See other pages where Free imaging is mentioned: [Pg.142]    [Pg.34]    [Pg.174]    [Pg.96]    [Pg.124]    [Pg.357]    [Pg.198]    [Pg.390]    [Pg.204]    [Pg.402]    [Pg.214]    [Pg.3220]    [Pg.124]    [Pg.28]    [Pg.229]    [Pg.234]    [Pg.159]    [Pg.264]    [Pg.6269]    [Pg.182]    [Pg.14]    [Pg.1150]    [Pg.1042]    [Pg.380]    [Pg.412]    [Pg.74]    [Pg.86]    [Pg.2561]    [Pg.221]    [Pg.3149]    [Pg.4463]    [Pg.109]    [Pg.127]    [Pg.153]    [Pg.186]    [Pg.7481]   
See also in sourсe #XX -- [ Pg.226 ]




SEARCH



Imaging systems free-radical

© 2024 chempedia.info