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Disposable Dosators Intended for Dry Powder Delivery to Mice
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Chapter 9 - Nanoliposomal dry powder formulations.

Gaurang Patel1, Mahavir Chougule, Mandip Singh

  • 1TIFAC-CORE in NDDS, Pharmacy Department, Faculty of Technology and Engineering, The Maharaja Sayajirao University of Baroda, Kalabhavan, Vadodara, Gujarat, India.

Methods in Enzymology
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Nanoliposomal dry powder formulations (NLDPFs) offer superior drug delivery compared to conventional DPFs. These advanced formulations improve drug release, lung deposition, and reduce toxicity for better therapeutic outcomes.

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Area of Science:

  • Pharmaceutics
  • Drug Delivery Systems
  • Nanotechnology

Background:

  • Conventional dry powder formulations (DPFs) face limitations in drug delivery and toxicity.
  • Liposomal DPFs demonstrate improved pharmacokinetics and pharmacodynamics, reducing adverse effects.
  • Nanoliposomal DPFs (NLDPFs) offer enhanced aerosolization, prolonged release, and targeted delivery.

Purpose of the Study:

  • To detail the preparation methods for nanoliposomes (NLs) and NLDPFs.
  • To outline comprehensive characterization techniques for NLDPFs.
  • To provide examples for understanding NLDPF preparation and evaluation.

Main Methods:

  • Preparation of nanoliposomes and NLDPFs using various techniques.
  • Characterization including size distribution, flow behavior, and in vitro drug release.
  • Evaluation of lung deposition, cellular uptake, cytotoxicity, and in vivo pharmacokinetics/pharmacodynamics.

Main Results:

  • NLDPFs exhibit stable, high aerosolization efficiency for deep lung delivery.
  • Prolonged drug release and slow systemic dilution are achieved with NLDPFs.
  • NLDPFs avoid macrophage uptake, enhancing carrier-based nano-range liposome delivery.

Conclusions:

  • NLDPFs represent a superior drug delivery system over conventional DPFs.
  • The described methods enable effective preparation and characterization of NLDPFs.
  • NLDPFs hold significant potential for improved therapeutic efficacy and reduced toxicity.