Cited by 122Electrospun Nanofibers in Biomedical ApplicationsTissue Engineering and Regenerative Medicinebiodegradable polymer synthesis and properties

Polymer Scaffolds for Small‐Diameter Vascular Tissue Engineering

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Ma, Haiyun, Hu, Jiang, Ma, Peter X.·2010·Advanced Functional Materials

Abstract

To better engineer small‐diameter blood vessels, a few types of novel scaffolds are fabricated from biodegradable poly(L‐lactic acid) (PLLA) by means of thermally induced phase‐separation (TIPS) techniques. By utilizing the differences in thermal conductivities of the mold materials and using benzene as the solvent scaffolds with oriented gradient microtubular structures in the axial or radial direction can be created. The porosity, tubular size, and the orientational direction of the microtubules can be controlled by the polymer concentration, the TIPS temperature, and by utilizing materials of different thermal conductivities. These gradient microtubular structures facilitate cell seeding and mass transfer for cell growth and function. Nanofibrous scaffolds with an oriented and interconnected microtubular pore network are also developed by a one‐step TIPS method using a benzene/tetrahydrofuran mixture as the solvent without the need for porogen materials. The structural features of such scaffolds can be conveniently adjusted by varying the solvent ratio, phase‐separation temperature, and polymer concentration to mimic the nanofibrous features of an extracellular matrix. These scaffolds were fabricated for the tissue engineering of small‐diameter blood vessels by utilizing their advantageous structural features to facilitate blood‐vessel regeneration.

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  1. [12]Shinoka T Ma PX Shum-Tim D Breuer CK Cusick RA Zund G Langer R Vacanti JP Mayer JE Jr Circulation 1996 94 II164 8 8901739

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Authors
Ma, H., Hu, J., & Ma, P. X.
Affiliations
University of Michigan (US)
Corresponding author
Ma, Peter X.
Venue
Advanced Functional Materials
Publisher
Wiley
Published
2010-09-08
Volume
20
Issue
17
Pages
2833-2841
ISSN
  • 1616-301X (ISSN-L)
  • 1616-3028
OpenAlex
W2113364032
Cited by
122
References
45
Citations by year
2026: 4 · 2025: 9 · 2024: 6 · 2023: 6 · 2022: 10 · 2021: 5 · 2020: 14 · 2019: 8 · 2018: 10 · 2017: 7 · 2016: 9 · 2015: 4 · 2014: 12 · 2013: 8 · 2012: 6
FWCI
2.37
Type
journal article
Language
en
Open access
Locations
  • Advanced Functional Materials (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Deep Blue (University of Michigan) (submittedVersion)
Funders
  • National Institutes of Health
  • National Institute of Dental and Craniofacial Research (R01DE017689, R01DE015384, DE 015384)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Electrospun Nanofibers in Biomedical Applications
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Physical Sciences › Materials Science › Biomaterials › biodegradable polymer synthesis and properties
Keywords
polymer scaffolds, poly(L-lactic acid), thermally induced phase separation, nanofibrous scaffolds, porosity control, extracellular matrix mimicry, vascular regeneration, cell seeding

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