4.7 Article

Viscoelastic Behavior of Drug-Loaded Polyurethane

Related references

Note: Only part of the references are listed.
Article Engineering, Manufacturing

Rotational Molding of Polyamide-12 Nanocomposites: Modeling of the Viscoelastic Behavior

M. Shirinbayan et al.

Summary: In this study, PA-12 pieces incorporated with different volume fractions of NCB were manufactured through the rotomolding process, with optimized parameters to obtain ideal pieces. The addition of NCB had an impact on the physicochemical and mechanical properties of the material, with an optimal volume fraction identified. Furthermore, the viscoelastic behavior of PA-12 was studied using the Bi-Parabolic Perez model and Cole-Cole method, showing good correlation between experimental results and the model used.

INTERNATIONAL JOURNAL OF MATERIAL FORMING (2021)

Article Polymer Science

Controlled release from polyurethane films: Drug release mechanisms

Navideh Abbasnezhad et al.

Summary: This study investigated the drug release kinetics and mechanisms of diclofenac loaded in polyurethane films under different initial drug loads and flow rates. Findings showed that higher flow rates and initial drug loads enhance drug liberation, with diffusion, burst, and osmotic pressure as the principal mechanisms. Fickian type was identified as the dominant mechanism, and the contribution of the diffusion mechanism decreases with increasing flow rate and initial dosage. Moreover, the number of stages in medication release profile is independent of flow rate and drug dosage.

JOURNAL OF APPLIED POLYMER SCIENCE (2021)

Article Polymer Science

Influence of Drug Incorporation on the Physico-Chemical Properties of Poly(l-Lactide) Implant Coating Matrices-A Systematic Study

Daniela Arbeiter et al.

Summary: Local drug delivery using stents as carrier platforms is essential in biomedical engineering, but the incorporation of drugs into polymers may affect the physico-chemical properties of the matrix, posing a risk of implant failure. The study on the influence of different drugs on polymers provides insights for target-oriented thermal treatment to ensure the shelf life and performance of stent coatings.

POLYMERS (2021)

Article Polymer Science

Viscoelastic Polyurethane Foam with Keratin and Flame-Retardant Additives

Krystyna Wrzesniewska-Tosik et al.

Summary: Viscoelastic polyurethane (VEPUR) foams modified with keratin and flame retardant additives showed improved thermal resistance and fire resistance, with changes in burning behavior. The highest fire resistance was achieved with foams containing keratin and expanding graphite, reducing heat release rate (HRR) by 75% compared to VEPUR foams.

POLYMERS (2021)

Article Pharmacology & Pharmacy

On the importance of physical and mechanical properties of PLGA films during drug release

N. Abbasnezhad et al.

Summary: The physical and mechanical properties of drug-incorporated polymer significantly impact drug release behavior. Understanding these variations allows for improved polymer carrier design, leading to better release profiles and increased drug stability. This study explored the release behavior of PLGA loaded with different percentages of diclofenac sodium at various flow rates, finding changes in mechanical properties during drug release and determining the zero order kinetic model as the most suitable for all release profiles.

JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY (2021)

Article Pharmacology & Pharmacy

In vitro study of drug release from various loaded polyurethane samples and subjected to different non-pulsed flow rates

N. Abbasnezhad et al.

JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY (2020)

Article Hematology

Pathologic Disparities Between Peripheral Artery Disease and Coronary Artery Disease

Nupoor Narula et al.

ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY (2020)

Article Materials Science, Biomaterials

PDMMLA derivatives as a promising cardiovascular metallic stent coating: Physicochemical and biological evaluation

R. Belibel et al.

MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS (2020)

Article Engineering, Biomedical

Polyurethane tissue adhesives for annulus fibrosus repair: Mechanical restoration and cytotoxicity

Lucas Dall Agnol et al.

JOURNAL OF BIOMATERIALS APPLICATIONS (2019)

Article Multidisciplinary Sciences

Strain-induced accelerated asymmetric spatial degradation of polymeric vascular scaffolds

Pei-Jiang Wang et al.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2018)

Review Orthopedics

Coatings as the useful drug delivery system for the prevention of implant-related infections

Chenhao Pan et al.

JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH (2018)

Article Polymer Science

Polymer Free Volume and Its Connection to the Glass Transition

Ronald P. White et al.

MACROMOLECULES (2016)

Article Biophysics

Modeling and Analysis of Drug-Eluting Stents With Biodegradable PLGA Coating: Consequences on Intravascular Drug Delivery

Xiaoxiang Zhu et al.

JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME (2014)

Article Polymer Science

Shape memory effect and properties memory effect of polyurethane

S. Farzaneh et al.

JOURNAL OF APPLIED POLYMER SCIENCE (2013)

Article Materials Science, Multidisciplinary

The effect of functionalization on the viscoelastic behavior of multi-wall carbon nanotube/epoxy composites

Arash Montazeri

MATERIALS & DESIGN (2013)

Article Chemistry, Multidisciplinary

Enhanced drug delivery capabilities from stents coated with absorbable polymer and crystalline drug

Wenda C. Carlyle et al.

JOURNAL OF CONTROLLED RELEASE (2012)

Review Chemistry, Multidisciplinary

Poly-ε-caprolactone based formulations for drug delivery and tissue engineering: A review

Tapan K. Dash et al.

JOURNAL OF CONTROLLED RELEASE (2012)

Article Engineering, Chemical

Effect of copolymer ratio on hydrolytic degradation of poly(lactide-co-glycolide) from drug eluting coronary stents

Chhaya Engineer et al.

CHEMICAL ENGINEERING RESEARCH & DESIGN (2011)

Article Engineering, Biomedical

Evaluation of two polymeric blends (EVA/PLA and EVA/PEG) as coating film materials for paclitaxel-eluting stent application

Xi Liu et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE (2011)

Article Cardiac & Cardiovascular Systems

Stent Fracture in the Coronary and Peripheral Arteries

Satjit Adlakha et al.

JOURNAL OF INTERVENTIONAL CARDIOLOGY (2010)

Review Polymer Science

Biocompatible polymer materials: Role of protein-surface interactions

Hong Chen et al.

PROGRESS IN POLYMER SCIENCE (2008)

Review Pharmacology & Pharmacy

Mechanisms of controlled drug release from drug-eluting stents

Ghanashyam Acharya et al.

ADVANCED DRUG DELIVERY REVIEWS (2006)

Article Infectious Diseases

Antibacterial poly(D,L-lactic acid) coating of medical implants using a biodegradable drug delivery technology

H Gollwitzer et al.

JOURNAL OF ANTIMICROBIAL CHEMOTHERAPY (2003)