<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31320427</termId><termName>self-healing materials</termName><termType>PT</termType><termNote><![CDATA[ Materials designed with the built-in ability to detect and repair damage and defects, such as concrete in which integrated bacteria promote self-healing of cracks. ]]></termNote><termCreatedDate>2026-03-30 20:26:21</termCreatedDate><relation><relationType>UF</relationType><termId>31320428</termId><termName>material, self-healing</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31320429</termId><termName>self-healing material</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31320430</termId><termName>self-repairing materials</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31306114</termId><termName>smart materials</termName><termType>PT</termType></relation></term>  </Zthes>