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Polymer-Based Nanomedicine for Targeted Drug Delivery

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (20 August 2022) | Viewed by 3040

Special Issue Editors


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Guest Editor
School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
Interests: drug delivery of traditional Chinese medicine (TCM); biomaterials; nanomedicine; biomimetic membranes; nanoparticles

E-Mail Website
Guest Editor
School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
Interests: biomimetic nanomedicine; polymeric nanoparticle; drug delivery; cancer; tumor microenvironment; biomaterials; cancer nanomedicine
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nanomedicine is an emerging field that fosters the development of novel concepts in targeted drug delivery and the exploration of innovative treatment strategies to combat major diseases. Targeted drug delivery is used for delivering therapeutics to a patient in a manner that accumulates drugs selectively at the site of action relative to others in the body. These advances are due, in part, to tunable morphological and physicochemical attributes, and help to address poor bioavailability and the targeted delivery of drugs. The selective delivery of various drugs to cells allows high local drug concentrations in the target cells while minimizing toxicity to normal cells. The encapsulation of active pharmaceutical ingredients within nano-size carriers offers several benefits, namely, protection of the therapeutic agents from degradation, their increased solubility and bioavailability, improved pharmacokinetics, reduced toxicity, enhanced therapeutic efficacy, decreased drug immunogenicity, targeted delivery, and simultaneous imaging and treatment options with a single system. Polymer-based nanomedicines with optimized properties are being considered as a new paradigm in the therapy of diseases. Recently “smart” nanomedicines have been developed with high payload capacity to deliver new drugs, target specific cell types or tissues, cross physiological barriers to reach their target, improve the therapeutic window of drugs, and to reduce unwanted side effects.

This Special Issue aims to present novel polymeric nanomedicine-inspired targeted delivery systems, including ligand-targeted polymeric nanoparticles, dendrimers, nanocomposites, and polymer–drug conjugates for the site-specific transport of pharmaceuticals, improved production and characterization techniques for pharmaceutical nanoparticles, and the exploration of alternative routes of administration and delivery strategies. We welcome articles dealing with all aspects of targeted drug-delivery systems based on polymeric nanomedicine and invite researchers and drug developers to publish their original research or review articles with expert opinions and perspectives in the area of therapeutics.

Dr. Mingfeng Qiu
Dr. Faisal Raza
Guest Editors

Manuscript Submission Information

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Keywords

  • targeted drug delivery
  • controlled release
  • polymeric nanomedicine
  • nanoparticles
  • dendrimers
  • micelles
  • polymer synthesis
  • ligand-targeted nanomedicine
  • nanocomposites
  • polymer–drug conjugates
  • stimuli-responsive nanoparticles

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Published Papers (1 paper)

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Research

19 pages, 4840 KiB  
Article
Design and Evaluation of pH-Sensitive Nanoformulation of Bergenin Isolated from Bergenia ciliata
by Kashaf Bashir, Muhammad Farhan Ali Khan, Aiyeshah Alhodaib, Naveed Ahmed, Iffat Naz, Bushra Mirza, Muhammad Khalid Tipu and Humaira Fatima
Polymers 2022, 14(9), 1639; https://doi.org/10.3390/polym14091639 - 19 Apr 2022
Cited by 7 | Viewed by 2258
Abstract
The aim of the current study is extraction and isolation of bergenin from Bergenia ciliata and fabrication of pH-sensitive Eudragit® L100 (EL100) polymeric nanoparticles (NP) to tackle limitations of solubility. Bergenin-loaded EL100 nanoparticles (BN-NP) were fabricated via nanoprecipitation and an experimental design [...] Read more.
The aim of the current study is extraction and isolation of bergenin from Bergenia ciliata and fabrication of pH-sensitive Eudragit® L100 (EL100) polymeric nanoparticles (NP) to tackle limitations of solubility. Bergenin-loaded EL100 nanoparticles (BN-NP) were fabricated via nanoprecipitation and an experimental design was conducted for optimization. A reverse phase-high performance liquid chromatography (RP-HPLC) method was developed for the quantitation of bergenin. The optimized nanoformulation was characterized by its particle size, morphology, loading capacity, entrapment efficiency, drug–excipient interaction and crystallinity. An in vitro assay was executed to gauge the release potential of pH-sensitive nanoformulation. The mean particle size, zeta potential and polydispersity index (PDI) of the optimized nanoparticles were observed to be 86.17 ± 2.1 nm, −32.33 ± 5.53 mV and 0.30 ± 0.03, respectively. The morphological analysis confirmed the spherical nature of the nanoparticles. Drug loading capacity and entrapment efficiency were calculated to be 16 ± 0.34% and 84 ± 1.3%, respectively. Fourier transform infrared spectroscopy (FTIR) studies unfolded that no interaction was present between the drug and the excipients in the nanoformulation. Crystallography studies revealed that the crystalline nature of bergenin was changed to amorphous and the nanoformulation was stable for up to 3 months at 40 °C. The present study confirms that bergenin isolation can be scaled up from abundantly growing B. ciliata. Moreover, it could also be delivered by entrapment in stimuli-responsive polymer, preventing the loss of drug in healthy tissues. Full article
(This article belongs to the Special Issue Polymer-Based Nanomedicine for Targeted Drug Delivery)
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