A PHP Error was encountered

Severity: Warning

Message: file_get_contents(https://...@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests

Filename: helpers/my_audit_helper.php

Line Number: 143

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 143
Function: file_get_contents

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 209
Function: simplexml_load_file_from_url

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3098
Function: getPubMedXML

File: /var/www/html/application/controllers/Detail.php
Line: 574
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 488
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: Attempt to read property "Count" on bool

Filename: helpers/my_audit_helper.php

Line Number: 3100

Backtrace:

File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3100
Function: _error_handler

File: /var/www/html/application/controllers/Detail.php
Line: 574
Function: pubMedSearch_Global

File: /var/www/html/application/controllers/Detail.php
Line: 488
Function: pubMedGetRelatedKeyword

File: /var/www/html/index.php
Line: 316
Function: require_once

Poly (Glycerol Adipate): From a Functionalized Nanocarrier to a Polymeric-Prodrug Matrix to Create Amorphous Solid Dispersions. | LitMetric

Poly (Glycerol Adipate): From a Functionalized Nanocarrier to a Polymeric-Prodrug Matrix to Create Amorphous Solid Dispersions.

J Pharm Sci

School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD UK; School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD UK. Electronic address:

Published: March 2020

AI Article Synopsis

  • * This study explores using an enzymatically synthesized poly(glycerol-adipate) as a prodrug that is combined with mefenamic acid to create nanoparticles, which were analyzed for amorphicity, stability, and drug release.
  • * The research included a high-throughput screening method to evaluate how the prodrug enhanced the solubility of various fenamic drugs, revealing that drug conjugation improves compatibility and drug release through multiple mechanisms.

Article Abstract

Amorphous solid dispersions are a promising strategy to overcome poor solubility and stability limitations, reducing the crystallinity of the drug through incorporation within a polymer matrix. However, to achieve an effective amorphous solid dispersion, the polymer and drug must be compatible, otherwise the drug can undergo recrystallization. In this work, we investigated the potential of the enzymatically synthesized poly(glycerol-adipate), as a pharmaceutical tool for producing a nanoamorphous formulation. A polymeric prodrug of poly(glycerol-adipate) was synthesized by coupling mefenamic acid as drug. The amorphicity of the polymeric prodrug was assessed combining differential scanning calorimetry and polarized optical microscopy. The prodrug was then formulated into nanoparticles and studied for stability and drug release in the presence of lipase. To realize the goal of combination drug therapies for overcoming drug resistance and improving treatment outcomes, the prodrug was screened as a solubility enhancer for a series of fenamic drugs and compared with commercially available polymers commonly used in solid dispersions. Screening was carried out by developing a high-throughput miniaturized screening assay using a 2D printer to dispense the polymer and drug combinations. Finally, the collected data showed that drug conjugation could improve drug-polymer compatibility, in addition to facilitating the release of drugs by 2 different mechanisms.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.xphs.2019.12.004DOI Listing

Publication Analysis

Top Keywords

amorphous solid
12
solid dispersions
12
drug
9
polymer drug
8
polymeric prodrug
8
poly glycerol
4
glycerol adipate
4
adipate functionalized
4
functionalized nanocarrier
4
nanocarrier polymeric-prodrug
4

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!

A PHP Error was encountered

Severity: Notice

Message: fwrite(): Write of 34 bytes failed with errno=28 No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 272

Backtrace:

A PHP Error was encountered

Severity: Warning

Message: session_write_close(): Failed to write session data using user defined save handler. (session.save_path: /var/lib/php/sessions)

Filename: Unknown

Line Number: 0

Backtrace: