Results 21 to 30 of about 7,532 (267)
Sustained Release Drug Delivery Applications of Polyurethanes
Since their introduction over 50 years ago, polyurethanes have been applied to nearly every industry. This review describes applications of polyurethanes to the development of modified release drug delivery.
Michael B. Lowinger +3 more
doaj +1 more source
Two series of rigid polyurethane-polyisocyanurate foams (RPU/PIR) modified by cinnamon extract (series C_0t and CU_0t) were obtained. One RPU/PIR series contained a commercial flame retardant (C_0t) in the formulation.
Joanna Liszkowska +5 more
doaj +1 more source
Effect of Glycerol in Soft and Hard Segments on Properties of Shape Memory Polyurethane [PDF]
Hypothesis: Chemical cross-linked shape memory polyurethanes (CSMPUs) can have various applications in different fields such as medicine, where mechanical behavior and shape memory are improved in these samples compared to linear shape memory ...
Mahdi Sakhavi +3 more
doaj +1 more source
We report the dynamic behavior of diselenide-containing hydrophilic polyurethanes and hydrogels based on diselenide exchange reactions in an aqueous media.
Hao Xu +6 more
doaj +1 more source
Thermal Stability of Aqueous Polyurethanes Depending on the Applied Catalysts
The thermal stability of aqueous polyurethanes has been measured applying thethermogravimetric analysis. The aqueous polyurethanes (aqPUR) with catalysts of differentselectivity have been studied by use of the dynamic method.
Miroljub Barac +6 more
doaj +1 more source
Lignocellulosic Biomass as a Source of Raw Materials for the Synthesis of Polyurethanes
Precursors have been satisfactorily synthesized from lignocellulosic biomass for later use in the synthesis of polyurethanes resulting in competitive final properties with those of petroleum derived polyurethanes.
Tamara Calvo-Correas +6 more
doaj +1 more source
Due to growing concerns about environmental issues and the decline of petroleum-based resources, the synthesis of new biobased compounds for the polymer industry has become a prominent and timely topic.
Aliénor Delavarde +4 more
doaj +1 more source
The Vaginal Microbiota, Bacterial Biofilms and Polymeric Drug-Releasing Vaginal Rings
The diversity and dynamics of the microbial species populating the human vagina are increasingly understood to play a pivotal role in vaginal health. However, our knowledge about the potential interactions between the vaginal microbiota and vaginally ...
Louise Carson +6 more
doaj +1 more source
Polyurethanes are widely used in the development of medical devices due to their biocompatibility, degradability, non-toxicity and chemical versatility.
Yomaira L. Uscátegui +6 more
doaj +1 more source
POLYURETHANE COMPOSITES AS DRUG CARRIERS:: RELEASE PATTERNS [PDF]
Biodegradable polyurethanes attract interest of those developing composite materials for biomedical applications. One of their features is their ability to serve as carriers, or matrixes, for medicines and other bioactive compounds to produce a ...
M. V. Grigoreva
doaj +1 more source

