In certain in vitro cellular diagnostic or gene-delivery applications, PEG-free NPs are used [3, 5, 19] while in other applications, especially those that are in vivo, NPs are often functionalized with PEG ("PEGylated") [20, 21].
Furthermore, studies now indicate that DNA CT may also be used in the cell by, for example, DNA repair proteins, as a cellular diagnostic, in order to scan the genome to localize efficiently to damage sites.
Nanobiomaterials can be engineered to recognize cancer-specific receptors at the cellular level for diagnostic and therapeutic purposes.
Apart from their uses in the cellular imaging with diagnostic effects in nanomedicine [4, 5], CNTs are promising drug carriers in the target drug delivery systems for cancer therapies.
Moreover, the 25G FNB group exhibited higher scores for the amount of diagnostic cellular material and the retention of appropriate architecture when LBP was used.
The two techniques for EUS-guided sampling were compared based on the following parameters: (1) the amount of diagnostic cellular material present, (2) the retention of appropriate architecture and cellular arrangement, (3) the degree of cellular degeneration, (4) the degree of cellular trauma, and (5) the volume of obscuring background blood or clot.
In the sample quality analysis, the two sampling techniques with CS demonstrated similar scores for the amount of diagnostic cellular material present, the retention of appropriate architecture and cellular arrangement, the degree of cellular degeneration, the degree of cellular trauma, and the volume of obscuring background blood or clot (Table 4).
Given the advances in molecular and cellular pathology and diagnostic ability ranging from laboratory to radiological tests (including X-rays, computed tomography (CT) scans, magnetic resonance imaging (MRI) scans, positron emission tomography (PET) scans and nuclear imaging), we are more enabled to make such diagnoses.
We found that over a 75% of the recovered cell blocks contained diagnostic cellular material, a percentage similar to those in other series where cell blocks from needle core biopsies have been processed [ 3, 19], but lower than the figure attained by conventional smears [ 18].
