发明名称 |
APTAMER BIOCONJUGATE DRUG DELIVERY DEVICE |
摘要 |
A delivery device for a active agent comprises nanoparticles based on a biopolymer such as starch. The delivery device may also be in the form of an aptamer-biopolymer-active agent conjugate wherein the aptamer targets the device for the treatment of specific disorders, such as cancer. The delivery device survives for a period of time in the body sufficient to allow for transport and uptake of the delivery device into targeted cells. The degree of crosslinking can provide a desired release profile of the active agent at, near or inside the target cells. The nanoparticles may be made by applying a high shear force in the presence of a cross linker. The particles may be predominantly in the range of 50-150 nm and form a colloidal dispersion of crosslinked hydrogel particles in water. |
申请公布号 |
US2015025029(A1) |
申请公布日期 |
2015.01.22 |
申请号 |
US201214360503 |
申请日期 |
2012.09.21 |
申请人 |
ECOSYNTHETIX LTD. |
发明人 |
Bloembergen Steven;McLennan Ian J.;Jones Nathan;Ganesh Shermon Areet Krsna;Elsayed Abdel;Liu Juewen |
分类号 |
A61K47/36;A61K31/704 |
主分类号 |
A61K47/36 |
代理机构 |
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代理人 |
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主权项 |
1. A delivery system comprising,
nanoparticles comprising a mass of crosslinked biopolymers, wherein the degree of crosslinking of the biopolymers provides a release profile of an active agent from the nanoparticle within a predetermined range of release profiles. |
地址 |
Lansing MI US |