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TitleThe effect of high-energy environments on the structure of laccase-polymerized poly(catechol)
Author(s)Jing Su
Castro, T.
Noro, Jennifer Martins
Fu, Jiajia
Wang, Qiang
Silva, C.
Cavaco-Paulo, Artur
Ultrasonic bath
High-pressure homogenizer
Issue dateNov-2018
JournalUltrasonics Sonochemistry
CitationJing Su; Castro, T.; Jennifer Noro; Fu, Jiajia; Wang, Qiang; Silva, Carla; Cavaco-Paulo, Artur, The effect of high-energy environments on the structure of laccase-polymerized poly(catechol). Ultrasonics Sonochemistry, 48, 275-280, 2018
Abstract(s)The laccase polymerization of catechol was performed using different reactors namely a water bath (WB), an ultrasonic bath (US) and a high-pressure homogenizer (HPH). The total content of free OH and the MALDI-TOF spectra of polymers obtained demonstrated that reactions are favored in the presence of high-energy environments. Higher conversion yields and polymerization degrees (DP) were obtained after polymerization using US or HPH. Molecular dynamic simulation studies supported these findings by revealing a more open enzyme active site upon environments with high molecular agitation. The higher mass transport generated by US and HPH is the main feature responsible for a higher substrate accessibility to the enzyme which contributed to produce longer polymers.
Publisher version
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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