Browsing Category
OCT
In-situ monitoring of in vitro drug release processes in tablets using optical coherence tomography
Film-coated modified-release tablets are an important dosage form amenable to targeted, controlled, or delayed drug release in the specific region of the gastrointestinal (GI) tract. Depending on the film composition and interaction with the GI fluid, such coated products can modulate the local…
Read More...
Read More...
Hollow microneedles for ocular drug delivery
Microneedles (MNs) are micron-sized needles, typically <2 mm in length, arranged either as an array or as single needle. These MNs offer a minimally invasive approach to ocular drug delivery due to their micron size (reducing tissue damage compared to that of hypodermic needles) and overcoming…
Read More...
Read More...
Extending the Use of Optical Coherence Tomography to Scattering Coatings Containing Pigments
Coating thickness is a critical quality attribute of many coated tablets. Functional coatings ensure correct drug release kinetics or protection from light, while non-functional coatings are generally applied for cosmetic reasons. Traditionally, coating thickness is assessed indirectly via offline…
Read More...
Read More...
An Integrated Real-time Monitoring and Statistical Process Control Approach for Coating Process and…
Abstract
Purpose
The thickness and other quality aspects of pharmaceutical coatings can be significantly impacted by coating process conditions. Under certain circumstances, they can notably influence the drug product performance such as dissolution profiles. Typically, a target coating…
Read More...
Read More...
Optical Methods for Non-Invasive Determination of Skin Penetration: Current Trends, Advances,…
Information on the penetration depth, pathways, metabolization, storage of vehicles, active pharmaceutical ingredients (APIs), and functional cosmetic ingredients (FCIs) of topically applied formulations or contaminants (substances) in skin is of great importance for understanding their interaction…
Read More...
Read More...
Prediction of dissolution performance of uncoated solid oral dosage forms via optical coherence…
Abstract
Real-time prediction of the dissolution behavior of solid oral dosage forms is an important research topic. Although methods such as Terahertz and Raman can provide measurements that can be linked to the dissolution performance, they typically require a longer time off-line for analysis.…
Read More...
Read More...
Optical Coherence Tomography as a novel tool for non-invasive membrane thickness monitoring of…
Abstract
Co-extruded core-membrane formulations have been extensively explored as long-acting subcutaneous implants or vaginal inserts, guaranteeing zero-order release. Although the membrane thickness and homogeneity determine the final drug release, these parameters are still evaluated offline via…
Read More...
Read More...
A validation of discrete-element model simulations for predicting tablet coating variability
Abstract
Achieving an even coating distribution on tablets during the coating process can be challenging, not to mention the challenges of accurately measuring and quantifying inter-tablet coating variability. Computer simulations using the Discrete Element Method (DEM) provide a viable pathway…
Read More...
Read More...
Optical Coherence Tomography as a novel tool for non-invasive membrane thickness monitoring of…
Abstract
Co-extruded core-membrane formulations have been extensively explored as long-acting subcutaneous implants or vaginal inserts, guaranteeing zero-order release. Although the membrane thickness and homogeneity determine the final drug release, these parameters are still evaluated offline via…
Read More...
Read More...
Hydroquinone cream-based polymer microneedle roller for the combined treatment of large-area…
Melasma is a common hyperpigmented skin condition that occurs on the face and other areas prone to light exposure, seriously affecting people's quality of life. Microneedle, a new type of transdermal drug delivery device, can significantly improve skin permeability. In this study, we designed and…
Read More...
Read More...