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Abstract The PZT ceramics with different weight content from 78% to 89% were printed using the stereolithography method. The piezoelectric properties as well as the microstructure of the ceramics were investigated in detail. X-ray patterns and Raman spectra demonstrate that the steady PZT tetragonal phase has already formed in these sintered ceramics. Besides, the piezoelectric constant and dielectric constant were 212–345 pC/N and 760–1390, which were sligthly lower than that of the dry pressing disk. Furthermore, a two-dimensional ultrasound transducer array (8 × 8) was designed and developed to evaluate the properties of the 3D-printed PZT ceramics. [ABSTRACT FROM AUTHOR]

Highlights from the article: B Background: b Neuro-developmental disorders (NDDs) are common but severe pediatric diseases affecting a child's brain development and growth. Early intervention significantly improves patient's neuropsychological function, and early diagnosis is the key step for early intervention. Meanwhile, the genetic variants contributing to pediatric NDDs are complex including copy number variant (CNV) or single nucleotide variant (SNV), balanced or imbalanced chromosomal rearrangement, gene-disruption rearrangement or noncoding-region rearrangement, somatic/mosaic or germline variant.