Untitled

FURUSAWA, Kiyotaka; SHIMURA, Yukio; OTOBE, Kazu; Atsumi, Kazuhiko; TSUDA, Keishiro

doi:10.1295/koron.34.309

KOBUNSHI RONBUNSHU

1977

DOI: 10.1295/koron.34.309

|View full text |Cite

Untitled

Kiyotaka FURUSAWA¹,

Yukio SHIMURA²,

Kazu OTOBE³

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1980

1990

Publication Types

Select...

Article6

Relationship

Self Cite0

Independent6

Authors

Journals

Cited by 18 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It was pointed out that a balance between the polar and dispersion forces is important to thrombogenesis. Atsumi et al 14 recently examined the relation between the surface properties and blood compatibility of segmented polyurethanes, and emphasized the balance among the three components of the surface free energy of these block copolymer membranes, i.e., dispersion, polar, and hydrogen bonding forces. It was particularly noted that the component associated with hydrogen bonding is important to blood compatibility.…”

mentioning

confidence: 99%

Structure and Properties of Membrane Surfaces of A-B-A Tri-Block Copolymers Consisting of Poly(γ-methyl D,L-glutamate) as the A Component and Polybutadiene as the B Component

Kugo

Murashima

Hayashi

et al. 1983

Polym J

View full text Add to dashboard Cite

A-B-A tri-block copolymers consisting of DL-isomers of poly(y-methyl glutamate) as the A component and polybutadiene as the B component were prepared. The synthesis was carried out by polymerizing an equimolar mixture of y-methyl D-glutamate and y-methyl Lglutamate NCA with the amine groups capped at both ends of the polybutadiene block or the initiator. By infrared spectroscopy, it was found that the copolypeptide chain block exists not only in an ()(-helical conformation but also in a random coli conformation. On the basis of contact angle measurements, replication electron micrographs, and attenuated total reflection-infrared spectra, it was concluded that the surface of the present block copoly.mer membranes has a microheterophase structure consisting of the copolypeptide and hydrophobic domains, and also has a grainy surface structure with a grain size of 300-500 A. Furthermore, the adsorption of plasma proteins onto these block copolymer membranes was investigated.

show abstract

mentioning

confidence: 99%

Structure and Properties of Membrane Surfaces of A-B-A Tri-Block Copolymers Consisting of Poly(γ-methyl D,L-glutamate) as the A Component and Polybutadiene as the B Component

Kugo

Murashima

Hayashi

et al. 1983

Polym J

View full text Add to dashboard Cite

show abstract

Platelet interaction with poly(ethylene oxide) networks

Chaikof¹,

Merrill²,

Coleman³

et al. 1990

AIChE Journal

View full text Add to dashboard Cite

Interpenetrating polymer networks (IPNs) of poly(ethy1ene oxide) (PEO) and a polyether substituted polysiloxane were synthesized containing variations of PEO content (35 and 65% dry network weight) and PEO systematically varied from low to high molecular weight (2,000,8,000, and 20,000). Biocompatibility was assessed by measureing '"In platelet deposition in a baboon femoral ex vivo shunt. Mass transfer analysis revealed that platelet transport to PEO/ polysiloxane surfaces was kinetically limited and correlated with both PEO content and molecular weight. Differences in material performance were noted particularly after the initial 30 min blood contact period. In mid and high PEO molecular weight networks (8,000 and 20,000), reduced platelet deposition was noted with increased PEO content. In materials of high PEO content (65%), mid and high PEO molecular weight samples had significantly lower levels of platelet adsorption than PDMS (60 min; p < 0.05) or networks of low PEO molecular weight, coded 2K-65 (30 and 60 min; p c 0.05). The lowest level of platelet deposition was noted on 20K-65 networks, less than one platelet per 1,000 pm2.

show abstract

Biomaterial surfaces

Ratner,

Johnston,

Lenk

1987

Journal of Biomedical Materials Research

View full text Add to dashboard Cite

The nature of a biomaterial surface governs the processes involved in biological response. Surface properties such as surface chemistry, surface energy, and morphology may be measured in order to understand the surface region of a biomaterial. In this article, we describe the surface characteristics of a few common biomaterials, review the techniques used to measure surface properties, and discuss the application of surface information in developing novel and improved biomaterials.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Untitled

Cited by 18 publications

References 0 publications

Structure and Properties of Membrane Surfaces of A-B-A Tri-Block Copolymers Consisting of Poly(γ-methyl D,L-glutamate) as the A Component and Polybutadiene as the B Component

Structure and Properties of Membrane Surfaces of A-B-A Tri-Block Copolymers Consisting of Poly(γ-methyl D,L-glutamate) as the A Component and Polybutadiene as the B Component

Platelet interaction with poly(ethylene oxide) networks

Biomaterial surfaces

Contact Info

Product

Resources

About