摘要:
Improved aerodynamically light particles for drug delivery to the pulmonary system, and methods for their synthesis and administration are provided. In a preferred embodiment, the aerodynamically light particles are made of biodegradable material and have a tap density of less than 0.4 g/cm3 and a mass mean diameter between 5 μm and 30 μm. The particles may be formed of biodegradable materials such as biodegradable polymers. For example, the particles may be formed of a functionalized polyester graft copolymer consisting of a linear α-hydroxy-acid polyester backbone having at least one amino acid group incorporated therein and at least one poly(amino acid) side chain extending from an amino acid group in the polyester backbone. In one embodiment, aerodynamically light particles having a large mean diameter, for example greater than 5 μm, can be used for enhanced delivery of a therapeutic agent to the alveolar region of the lung. The aerodynamically light particles incorporating a therapeutic agent may be effectively aerosolized for administration to the respiratory tract to permit systemic or local delivery of wide variety of therapeutic agents.
摘要:
Improved aerodynamically light particles for delivery to the pulmonary system, and methods for their preparation and administration are provided. In a preferred embodiment, the aerodynamically light particles are made of a biodegradable material and have a tap density less than 0.4 g/cm3 and a mass mean diameter between 5 μm and 30 μm. The particles may be formed of biodegradable materials such as biodegradable polymers. For example, the particles may be formed of a functionalized polyester graft copolymer consisting of a linear a-hydroxy-acid polyester backbone having at least one amino acid group incorporated herein and at least on poly(amino acid) side chain extending from an amino acid group in the polyester backbone. In one embodiment, aerodynamically light particles having a large mean diameter, for example greater than 5 μm, can be used for enhanced delivery of a therapeutic or diagnostic agent to the alveolar region of the lung. The aerodynamically light particles optionally can incorporate a therapeutic or diagnostic agent, and may be effectively aerosolized for administration to the respiratory tract to permit systemic or local delivery of a wide variety of incorporated agents.
摘要翻译:提供用于递送至肺系统的改善的空气动力学轻微颗粒,以及其制备和给药方法。 在优选的实施方案中,空气动力学轻微颗粒由可生物降解的材料制成,并且振实密度小于0.4g / cm 3,质量平均直径在5μm和30μm之间。 颗粒可以由可生物降解的材料如可生物降解的聚合物形成。 例如,颗粒可以由官能化的聚酯接枝共聚物形成,所述官能化聚酯接枝共聚物由具有至少一个引入本文的氨基酸基团和至少在从氨基酸延伸的聚(氨基酸)侧链上的直链α-羟基酸聚酯主链组成 集团在聚酯骨干。 在一个实施方案中,具有大平均直径(例如大于5μm)的空气动力学轻的颗粒可用于增强治疗或诊断剂递送至肺的肺泡区域。 空气动力学轻微颗粒任选地可以掺入治疗剂或诊断剂,并且可以有效地雾化用于给予呼吸道以允许各种并入药剂的全身或局部递送。
摘要:
Aerodynamically light particles incorporating a surfactant on the surface thereof for drug delivery to the pulmonary system, and methods for their synthesis and administration are provided. In a preferred embodiment, the aerodynamically light particles are made of a biodegradable material and have a tap density less than 0.4 g/cm.sup.3 and a mass mean diameter between 5 .mu.m and 30 .mu.m. The particles may be formed of biodegradable materials such as biodegradable polymers. For example, the particles may be formed of poly(lactic acid) or poly(glycolic acid) or copolymers thereof. Alternatively, the particles may be formed solely of the drug or diagnostic agent and a surfactant. Surfactants can be incorporated on the particle surface for example by coating the particle after particle formation, or by incorporating the surfactant in the material forming the particle prior to formation of the particle. Exemplary surfactants include phosphoglycerides such as L-.alpha.-phosphatidylcholine dipalmitoyl. The aerodynamically light particles incorporating a therapeutic or diagnostic agent and a surfactant may be effectively aerosolized for administration to the respiratory tract to permit systemic or local delivery of wide a variety of therapeutic agents.
摘要:
Improved aerodynamically light particles for drug delivery to the pulmonary system, and methods for their synthesis and administration are provided. In a preferred embodiment, the aerodynamically light particles are made of a biodegradable material and have a tap density less than 0.4 g/cm3 and a mass mean diameter between 5 &mgr;m and 30 &mgr;m. The particles may be formed of biodegradable materials such as biodegradable polymers. For example, the particles may be formed of a functionalized polyester graft copolymer consisting of a linear &agr;-hydroxy-acid polyester backbone having at least one amino acid group incorporated therein and at least one poly(amino acid) side chain extending from an amino acid group in the polyester backbone. In one embodiment, aerodynamically light particles having a large mean diameter, for example greater than 5 &mgr;m, can be used for enhanced delivery of a therapeutic agent to the alveolar region of the lung. The aerodynamically light particles incorporating a therapeutic agent may be effectively aerosolized for administration to the respiratory tract to permit systemic or local delivery of wide variety of therapeutic agents.
摘要翻译:提供用于向肺系统输送药物的空气动力学轻微颗粒,以及用于其合成和给药的方法。 在优选的实施方案中,空气动力学轻微颗粒由可生物降解的材料制成,并且振实密度小于0.4g / cm 3,质量平均直径在5μm和30μm之间。 颗粒可以由可生物降解的材料如可生物降解的聚合物形成。 例如,颗粒可以由官能化聚酯接枝共聚物形成,该聚酯接枝共聚物由具有至少一个氨基酸基团的直链α-羟基酸聚酯主链和至少一个从氨基酸延伸的聚(氨基酸)侧链组成 集团在聚酯骨干。 在一个实施方案中,具有大平均直径(例如大于5μm)的空气动力学轻微颗粒可用于增强治疗剂递送至肺的肺泡区域。 掺入治疗剂的空气动力学轻微颗粒可以被有效地雾化,用于给予呼吸道以允许全身或局部递送多种治疗剂。
摘要:
The invention generally relates to a method for pulmonary delivery of therapeutic, prophylactic and diagnostic agents to a patient wherein the agent is released in a sustained fashion, and to particles suitable for use in the method. In particular, the invention relates to a method for the pulmonary delivery of a therapeutic, prophylactic or diagnostic agent comprising administering to the respiratory tract of a patient in need of treatment, prophylaxis or diagnosis an effective amount of particles comprising a therapeutic, prophylactic or diagnostic agent or any combination thereof in association with a charged lipid, wherein the charged lipid has an overall net charge which is opposite to that of the agent upon association with the agent. Release of the agent from the administered particles occurs in a sustained fashion.
摘要:
The invention generally relates to a method for pulmonary delivery of therapeutic, prophylactic and diagnostic agents to a patient wherein the agent is released in a sustained fashion, and to particles suitable for use in the method. In particular, the invention relates to a method for the pulmonary delivery of a therapeutic, prophylactic or diagnostic agent comprising administering to the respiratory tract of a patient in need of treatment, prophylaxis or diagnosis an effective amount of particles comprising a therapeutic, prophylactic or diagnostic agent or any combination thereof in association with a charged lipid, wherein the charged lipid has an overall net charge which is opposite to that of the agent upon association with the agent. Release of the agent from the administered particles occurs in a sustained fashion.
摘要:
The invention provides a method for inhibiting bacterial attachment to a surface, the method comprising forming the surface from a polymer, or applying a polymer to the surface, wherein the polymer is a homopolymer formed from a (meth) acrylate or (meth) acrylamide monomer or a copolymer formed from one or more (meth) acrylate or (meth) acrylamide monomers, wherein the (meth) acrylate or (meth) acrylamide monomers are of formula (I) or (II): [H2C═CR′—C(═O)—O—]nR (I) [H2C═CR′—C(═O)—NH—]nR (II) wherein n is 1, 2 or 3, R′ is independently H or CH3, R is an organic group having a total of from 2 to 24 carbon atoms, wherein the organic group includes an aliphatic or aromatic hydrocarbon moiety and wherein the organic group does not include any hydroxyl groups.
摘要:
Systems, devices, methods, and compositions are described for providing an x-ray shielding system including a flexible layer including a support structure having a plurality of interconnected interstitial spaces that provide a circulation network for an x-ray shielding fluid composition.
摘要:
Breast implants including sensor modules and related methods are described herein. Breast implants include those with: a shell configured to be substantially filled with a viscous material; and a plurality of sensor modules attached to the shell and positioned at a distance from each other, each of the plurality of sensor modules oriented to detect one or more analytes in a fluid adjacent to the shell, wherein each of the plurality of sensor modules includes a unique identifier and is configured to utilize energy transmitted from an external source.
摘要:
Bone cages are disclosed including devices for biocompatible implantation. The structures of bone are useful for providing living cells and tissues as well as biologically active molecules to subjects.