Developing a Suitable Model for Water Uptake for Biodegradable Polymers Using Small Training Sets

Prediction of the dynamic properties of water uptake across polymer libraries can accelerate polymer selection for a specific application. We first built semiempirical models using Artificial Neural Networks and all water uptake data, as individual input. These models give very good correlations (R2...

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Main Authors: Loreto M. Valenzuela, Doyle D. Knight, Joachim Kohn
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:International Journal of Biomaterials
Online Access:http://dx.doi.org/10.1155/2016/6273414
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author Loreto M. Valenzuela
Doyle D. Knight
Joachim Kohn
author_facet Loreto M. Valenzuela
Doyle D. Knight
Joachim Kohn
author_sort Loreto M. Valenzuela
collection DOAJ
description Prediction of the dynamic properties of water uptake across polymer libraries can accelerate polymer selection for a specific application. We first built semiempirical models using Artificial Neural Networks and all water uptake data, as individual input. These models give very good correlations (R2>0.78 for test set) but very low accuracy on cross-validation sets (less than 19% of experimental points within experimental error). Instead, using consolidated parameters like equilibrium water uptake a good model is obtained (R2=0.78 for test set), with accurate predictions for 50% of tested polymers. The semiempirical model was applied to the 56-polymer library of L-tyrosine-derived polyarylates, identifying groups of polymers that are likely to satisfy design criteria for water uptake. This research demonstrates that a surrogate modeling effort can reduce the number of polymers that must be synthesized and characterized to identify an appropriate polymer that meets certain performance criteria.
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institution Kabale University
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spelling doaj-art-460c0f54796c40bdaa441bf10c3fbe062025-02-03T01:08:00ZengWileyInternational Journal of Biomaterials1687-87871687-87952016-01-01201610.1155/2016/62734146273414Developing a Suitable Model for Water Uptake for Biodegradable Polymers Using Small Training SetsLoreto M. Valenzuela0Doyle D. Knight1Joachim Kohn2Department of Chemical and Bioprocess Engineering, Research Center for Nanotechnology and Advanced Materials “CIEN-UC”, Pontificia Universidad Católica de Chile, Vicuña Mackenna 2860, Macul, 7820436 Santiago, ChileDepartment of Mechanical and Aerospace Engineering, Rutgers, The State University of New Jersey, New Brunswick, NJ 08854-8087, USANew Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, 145 Bevier Road, Piscataway, NJ 08854, USAPrediction of the dynamic properties of water uptake across polymer libraries can accelerate polymer selection for a specific application. We first built semiempirical models using Artificial Neural Networks and all water uptake data, as individual input. These models give very good correlations (R2>0.78 for test set) but very low accuracy on cross-validation sets (less than 19% of experimental points within experimental error). Instead, using consolidated parameters like equilibrium water uptake a good model is obtained (R2=0.78 for test set), with accurate predictions for 50% of tested polymers. The semiempirical model was applied to the 56-polymer library of L-tyrosine-derived polyarylates, identifying groups of polymers that are likely to satisfy design criteria for water uptake. This research demonstrates that a surrogate modeling effort can reduce the number of polymers that must be synthesized and characterized to identify an appropriate polymer that meets certain performance criteria.http://dx.doi.org/10.1155/2016/6273414
spellingShingle Loreto M. Valenzuela
Doyle D. Knight
Joachim Kohn
Developing a Suitable Model for Water Uptake for Biodegradable Polymers Using Small Training Sets
International Journal of Biomaterials
title Developing a Suitable Model for Water Uptake for Biodegradable Polymers Using Small Training Sets
title_full Developing a Suitable Model for Water Uptake for Biodegradable Polymers Using Small Training Sets
title_fullStr Developing a Suitable Model for Water Uptake for Biodegradable Polymers Using Small Training Sets
title_full_unstemmed Developing a Suitable Model for Water Uptake for Biodegradable Polymers Using Small Training Sets
title_short Developing a Suitable Model for Water Uptake for Biodegradable Polymers Using Small Training Sets
title_sort developing a suitable model for water uptake for biodegradable polymers using small training sets
url http://dx.doi.org/10.1155/2016/6273414
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