Hybrid biodegradable scaffolds of piezoelectric polyhydroxybutyrate and conductive polyaniline: Piezocharge constants and electric potential study

Hybrid lead-free polymer-based nanocomposites with improved piezoelectric response for biomedical energy-harvesting applications: A review

“…Various alternative concepts for piezoelectric materials and composites based on inorganic piezoelectric ceramics have been developed [4], including lead-free inorganic materials such as (Na,K)NbO 3 [12] and organic polymer hybrids, e.g. PHB/PANi [13]. Polymer-based piezoelectric materials, such as PVDF or its copolymer poly-(vinylidene fluoride)trifluoroethylene (PVDF-TrFE), have several unique advantages over inorganic materials, such as good mechanical flexibility, ease of moulding, chemical stability, and biocompatibility [14].…”

Review of Hybrid Materials Based on Polyhydroxyalkanoates for Tissue Engineering Applications

“…For pure PHB electrospun nanofibers, its piezoelectric charge constant is approximately 3.25 pC/N for d 31 and 4.13 pC/N for d 33 . The piezoresponse of polymers can be enhanced with the addition of different nanomaterials as fillers, such as CNTs [ 93 ], barium titanate (BaTiO 3 ) [ 121 ], and PANi [ 122 ]. The phenomenon of the increased piezoresponse is due to an increase in the piezoactive phase amount [ 93 ].…”

“…PHB/MWCNT composite nanofiber membrane scaffolds fabricated by electrospinning followed by hot-stretching treatment had enhanced piezoresponse [ 93 ]. After blending with MWCNTs and hot-stretching treatment, the piezoelectric charge constant increased to 13.41 pC/N for d 31 and 15.11 pC/N for d 33 and 25.71 pC/N for d 31 and 26.8 pC/N for d 33 , respectively It has been reported that the doping of piezoelectric polymer PHB with conductive PANi allowed an increase in the piezoelectric charge coefficient and surface electric potential of pure PHB scaffolds by 4.2 times and 3.5 times, respectively, for 2 wt% PANi [ 122 ].…”

Piezoelectric Properties of Poly(3-Hydroxybutyrate-Co-3-Hedroxybutyrate)-Co-Poly(ethylene Glycol) Produced by Controlled Microbiological Biosynthesis

“…ПОБ является частич-но кристаллическим полимером, что в значительной мере определяет его основные физико-химические свойства, а также нано-и микроструктуру изготовляемых на его основе изделий [1,17]. Кроме того, ПОБ является пьезоэлектриком [5], хотя при этом имеет низкий пьезоэлектрический отклик по сравнению с поливинилиденфторидом или пьезокерамикой [15,16]. Благодаря этим качествам ПГБ успешно применяется для восстановления костной, кожной и нервной тканей [4,13].…”

“…Благодаря этим качествам ПГБ успешно применяется для восстановления костной, кожной и нервной тканей [4,13]. Для увеличения пьезоэлектрического отклика разработаны гибриды на основе органических полимеров, например ПОБ и полианилина (ПОБ/ПАНИ) [5], композиты с пьезоэлектрической керамикой -цирконатом-титанатом свинца (ПОБ/ЦТС) [12].…”