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Here we prepared tricalcium phosphate (TCP) spherical cups of a few micrometers in size (average=2.74μm) by applying the electrospraying method. The sol–gel precursor containing calcium and phosphate (Ca/P=1.5) was mixed with Polyvinylpyrrolidone in ethanol at varying concentrations, and then sprayed under a controlled electrostatic field. The jets from the sol–gel solution changed from a complete...
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