[PDF] Top 20 Subwavelength far-field ultrasound drug-delivery

... for ultrasound imaging has recently been bypassed in-vitro and ...of ultrasound therapy, the precision of therapeutic beams remains bound to the half-wavelength ...rapid ultrasound monitoring, we ... Voir le document complet

... cancer; drug delivery; mesoporous materials; two-photon excitation Nowadays, remote activation of nanoparticles (NPs) by light for biomedical applications has become an important area of ...light-triggered ... Voir le document complet

... - Ultrasound and microbubble-assisted gene delivery: insights for intracellular mechanism Introduction Gene delivery by non-viral methods is still a major challenge ...gene delivery. Fifteen ... Voir le document complet

... for drug delivery has confirmed their potential in the pharmaceutical ...the drug during ...the delivery of lipophilic compounds with regards to biocompatibility, stability or scale ...the ... Voir le document complet

... monitoring, Ultrasound, Targeted DNA ...improve ultrasound contrast ...acid delivery has been ...gene delivery in tumor, leading to reduced tumor growth ...the ultrasound-targeted ... Voir le document complet

... the drug is required for cell death because most cytotoxic drugs act ...the drug is ruled by diffusion and degradation of the biodegradable polymer used as ... Voir le document complet

... a drug delivery syst em by investigating their stability, according to the formulation strategy, and their release ...lipophilic drug models , indomethacin and ketoconazole were entrapped in the ... Voir le document complet

... active drug at the site of action and requires much lower doses than oral ...the drug ratios in the present particle compositions were lower than the doses normally used for the individual drugs when used ... Voir le document complet

... PET infusions, imaging, and reconstruction Positron emission tomography (PET) was used to visualize dosing of radioactive tracer in vivo. Radioactive Cu-64 was obtained from the Mallinckrodt Institute of Radiology (St. ... Voir le document complet

... pursued using the very pH-sensitive sulfonamide (PSD) group [95]. The PSD compound is fully protonated at pH 7.4 (the pH in the blood stream) and becomes neutral at pH 6.8 [96]. The peritumoral pH has been evaluated to ... Voir le document complet

... the far field distance quickly becomes very large [ 9 ...the far-field distance for an Antenna Under Test (AUT) of maximum dimension 10 cm is already 20 m at 300 ...generate ... Voir le document complet

... radiated far field E(θ, ϕ) can be done analytically from the tangential components of the electric field thanks to the orthogonality properties of the spherical har- monics ...the field, as ... Voir le document complet

... the drug in polymer-based drug delivery systems has been explored through different types of non-covalent interactions (hydrophobic interaction, hydrogen bonding, ionic interaction, steric trapping ... Voir le document complet

... experimental far field data ...radiated far field, which is partitioned through a “partition of unity” ...initial far field data are ob- tained from ... Voir le document complet

... and delivery [50]. These modifications allow for more efficient gene delivery, which can additionally reduce toxicity indirectly by reducing the dosage required to reach therapeutic transfection ...this ... Voir le document complet

... Addressing the drug by controlling the movements of the carrier along its trajectory is the core of the targeting strategy. Ballistic metaphors flourish to describe the battery of techniques that have been ... Voir le document complet

... expected, NSLs showed no temperature-induced DOX release, consistent with the lack of thermally responsive lipids in their structure. None of the three nanoparticle types displayed significant internalization of DOX into ... Voir le document complet

... local drug delivery as they allow minimal ...(neurotrophic drug) or cyanine ...temperature. Drug release was correlated to polymer mass ... Voir le document complet

... Three new macromolecular architectures have been prepared for drug delivery systems. Micelles of these copolymers are nano-objects of about 40-50 nm. The cross-linking by disulfide bridges provided them the ... Voir le document complet

... 92794 Issy-Les-Moulineaux Cedex 9, France ABSTRACT: This paper presents a technique to compress the near-field data required to compute the radiated fields using FDTD. This technique is applied to the study of a UWB planar ... Voir le document complet