Search results for "Delivery system"

Overview and Update on Extracellular Vesicles: Considerations on Exosomes and their Application in Modern Medicine

2022

In recent years, there has been a rapid growth in the knowledge of cell-secreted extracellular vesicle functions. They are membrane enclosed and loaded with proteins, nucleic acids, lipids, and other biomolecules. After being released into the extracellular environment, some of these vesicles are delivered to recipient cells; consequently, the target cell may undergo physiological or pathological changes. Thus, extracellular vesicles as biological nano-carriers, have a pivotal role in facilitating long-distance intercellular communication. Understanding the mechanisms that mediate this communication process is important not only for basic science but also in medicine. Indeed, extracellular …

Reasons of irregularity of seed's distribution in the divider heads of air-seeders

2017

ISBN : 978-3-18-092300-0; International audience; Modern seeding equipment must allow to cultivate sizeable areas efficiently and finalize the seeding in a short amount of time. Air-seeder is a solution for a fast seeding: seeds are conveyed from the high-capacity seed hopper to the coulter-bar by an air-stream. Taking into account the complexity of this type of seed drills, they stay little-studied. Few developments have been done on divider headers responsible of distribution accuracy. This paper deals with a study on the influence of divider head geometry and functioning conditions on the seed's distribution accuracy. Moreover, observation of the seed's behaviour is done using a high-spe…

Inulin Coated Gold Nanoparticles As a Potential Tool For Cancer Therapy

2014

Covalently modified halloysite clay nanotubes: synthesis, properties, biological and medical applications

2017

Halloysite (HNT) is a promising natural nanosized tubular clay mineral that has many important uses in different industrial fields. It is naturally occurring, biocompatible, and available in thousands of tons at low cost. As a consequence of a hollow cavity, HNT is mainly used as nanocontainer for the controlled release of several chemicals. Chemical modification of both surfaces (inner lumen and outer surface) is a strategy to tune the nanotube's properties. Specifically, chemical modification of HNT surfaces generates a nanoarchitecture with targeted affinity through outer surface functionalization and drug transport ability from functionalization of the nanotube lumen. The primary focus …

SYNTHESIS AND CHARACTERIZATION BY THERMOGRAVIMETRIC ANALYSIS OF A NEW DRUG DELIVERY SYSTEM BASED ON HALLOYSITE NANOTUBES

2015

Hyaluronic acid based hydrogel and use thereof in surgery

2012

Biocompatible Hydrogels Based on Hyaluronic Acid Cross-Linked with a Polyaspartamide Derivative as Delivery Systems for Epithelial Limbal Cells

2011

Medicated hydrogels of hyaluronic acid derivatives for use in orthopedic field

2013

Inulin cationic derivatives obtained via enhanched microwave synthesis for nucleic acid based drugs delivery

2012

Current Progress in Particle-Based Systems for Transdermal Vaccine Delivery

2020

Transcutaneous immunization (TCI) via needle-free and non-invasive drug delivery systems is a promising approach for overcoming the current limitations of conventional parenteral vaccination methods. The targeted access to professional antigen-presenting cell (APC) populations within the skin, such as Langerhans cells (LCs), various dermal dendritic cells (dDCs), macrophages, and others makes the skin an ideal vaccination site to specifically shape immune responses as required. The stratum corneum (SC) of the skin is the main penetration barrier that needs to be overcome by the vaccine components in a coordinated way to achieve optimal access to dermal APC populations that induce priming of…