Surface modification of polycaprolactone membrane via layer-by-layer deposition for promoting blood compatibility

2008 ◽  
Vol 87B (1) ◽  
pp. 244-250 ◽  
Author(s):  
Li Liu ◽  
Shengrong Guo ◽  
Jiang Chang ◽  
Congqin Ning ◽  
Changming Dong ◽  
...  
Keyword(s):  
Surface Modification ◽  
Blood Compatibility ◽  
Layer By Layer ◽  
Layer Deposition

scholarly journals Active Packaging Coatings

Coatings ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 771-791 ◽  
Author(s):  
Luis Bastarrachea ◽  
Dana Wong ◽  
Maxine Roman ◽  
Zhuangsheng Lin ◽  
Julie Goddard
Keyword(s):  
Surface Modification ◽  
Controlled Release ◽  
Potential Application ◽  
Food Packaging ◽  
Packaging Materials ◽  
Layer By Layer ◽  
Bulk Properties ◽  
Layer Deposition ◽  
Active Food Packaging ◽  
The Matrix

Active food packaging involves the packaging of foods with materials that provide an enhanced functionality, such as antimicrobial, antioxidant or biocatalytic functions. This can be achieved through the incorporation of active compounds into the matrix of the commonly used packaging materials, or by the application of coatings with the corresponding functionality through surface modification. The latter option offers the advantage of preserving the packaging materials’ bulk properties nearly intact. Herein, different coating technologies like embedding for controlled release, immobilization, layer-by-layer deposition, and photografting are explained and their potential application for active food packaging is explored and discussed.

scholarly journals Layer-by-Layer Deposition of Hyaluronan and Quercetin-Loaded Chitosan Nanoparticles onto Titanium for Improving Blood Compatibility

Coatings ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 256 ◽  
Author(s):  
Xingda Wu ◽  
Cuijuan Liu ◽  
Hongpeng Chen ◽  
Yanfang Zhang ◽  
Lin Li ◽  
...  
Keyword(s):  
Surface Modification ◽  
Self Assembly ◽  
Platelet Adhesion ◽  
Blood Compatibility ◽  
Chitosan Nanoparticles ◽  
Uv Spectra ◽  
Multilayer Coatings ◽  
Layer By Layer ◽  
Antithrombotic Effects ◽  
Assembly Technique

Surface modification is an effective way to improve the hemocompatibility of biomaterials. Quercetin has significant anticoagulation and antithrombotic effects, and thus it is a promising candidate agent for the surface modification of blood-contacting materials. In this study, quercetin was successfully encapsulated in tripolyphosphate–chitosan nanoparticles (TCs) based on the ionic gelation of chitosan with tripolyphosphate (TPP) anions. Then, hyaluronan acid (HA)/quercetin-loaded TPP–chitosan nanoparticle (QTCs) films, in addition to HA/TCs films, were prepared separately using an electrostatic layer-by-layer self-assembly technique. The encapsulation of quercetin in the chitosan nanoparticles was confirmed by UV spectra. The quercetin-loaded multilayer coatings were also successfully self-assembled, as confirmed by the UV spectra and contact angle measurements. Platelet adhesion experiments were carried out with platelet-enriched plasma so as to evaluate the blood compatibility of the different samples. There were many platelets on the surfaces of the glass and HA/TC-coated titanium, which were partially activated but not aggregated. Meanwhile, many more platelets were observed on the uncoated titanium surfaces, most of which developed pseudopodia. By contrast, the platelet adhesion and activation were reduced remarkably on the surface of the HA/QTC-coated titanium. These results showed that the multilayer coatings containing quercetin could act as potential biomaterials to improve the anticoagulation performance of blood-contacting materials.

Radical-triggered cross-linking for molecular layer deposition of SiAlCOH hybrid thin films

2021 ◽  
Author(s):  
Kristina Ashurbekova ◽  
Karina Ashurbekova ◽  
Iva Saric ◽  
Evgeny Modin ◽  
Mladen Petravic ◽  
...  
Keyword(s):  
Thin Film ◽  
Film Growth ◽  
Molecular Layer ◽  
Thin Film Growth ◽  
Cross Linking ◽  
Layer By Layer ◽  
Molecular Layer Deposition ◽  
Layer Deposition ◽  
Hybrid Thin Films ◽  
Enhanced Stability

We developed a thin film growth with a radical-initiated cross-linking of vinyl groups in a layer-by-layer manner via molecular layer deposition (MLD). The cross-linked film exhibited improved properties like 12% higher density and enhanced stability compared to the non-cross-linked film.

Sign in / Sign up

Export Citation Format

Share Document