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In Vitro Drug Release Testing: Overview, Development and Validation01:10

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In vitro dissolution and drug release tests assess how quickly and how much of a drug is released from its dosage form into an aqueous medium under standardized laboratory conditions. These tests are essential tools in pharmaceutical development and quality assurance, offering insight into the drug's performance before clinical use.During formulation development, dissolution testing identifies incomplete or inconsistent drug release issues. It also supports decisions on selecting the optimal...
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The selection of a drug's delivery route depends upon its physicochemical properties, including lipid or water solubility and ionization, as well as the therapeutic requirement, such as immediate or sustained effect. These routes can be divided into three primary categories: enteral, parenteral, and topical.
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Body:Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
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Updated: Dec 24, 2025

Multi-Scale Modification of Metallic Implants With Pore Gradients, Polyelectrolytes and Their Indirect Monitoring In vivo
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Drug-releasing implants: current progress, challenges and perspectives.

Abel Santos1, Moom Sinn Aw, Manpreet Bariana

  • 1School of Chemical Engineering, The University of Adelaide, 5005 Adelaide, Australia. dusan.losic@adelaide.edu.au.

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Advanced drug-releasing implants using micro and nanotechnology offer improved localized therapies for resilient diseases. These innovative systems promise enhanced treatment efficiency and reduced side effects for patients.

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Nanotechnology

Background:

  • Conventional therapies face challenges in treating resilient diseases.
  • Micro and nanotechnology advancements enable sophisticated drug-releasing implants.
  • Implantable drug delivery systems offer a promising alternative to traditional treatments.

Purpose of the Study:

  • To review drug-releasing implants incorporating nanomaterials and nanotechnology.
  • To discuss the principles, advantages, and limitations of these advanced implants.
  • To provide future perspectives on implantable drug delivery systems.

Main Methods:

  • Literature review of drug-releasing implants.
  • Analysis of nanotechnology-based drug delivery devices.
  • Discussion of clinical trial outcomes and future trends.

Main Results:

  • Drug-releasing implants demonstrate improved capabilities for localized and controlled therapies.
  • These systems overcome limitations of conventional implants, enhancing treatment efficiency.
  • Clinical trials indicate improved patient outcomes and increased life expectancy.

Conclusions:

  • Implantable drug-releasing systems represent a significant advancement in clinical therapy.
  • Nanomaterials and nanotechnology are key drivers in developing next-generation drug delivery devices.
  • Further research in micro and nanotechnology will shape the future of implantable drug delivery.