Acoustic hologram-induced virtual in vivo enhanced waveguide (AH-VIEW).

Optical imaging and phototherapy in deep tissues face notable challenges due to light scattering. We use encoded acoustic holograms to generate three-dimensional acoustic fields within the target medium, enabling instantaneous and robust modulation of the volumetric refractive index, thereby noninvasively controlling the trajectory of light. Through this approach, we achieved a remarkable 24.3% increase in tissue heating rate in vitro photothermal effect tests on porcine skin. In vivo photoacoustic imaging of mouse brain vasculature exhibits an improved signal-to-noise ratio through the intact scalp and skull. These findings demonstrate that our strategy can effectively suppress light scattering in complex biological tissues by inducing low-angle scattering, achieving an effective depth reaching the millimeter scale. The versatility of this strategy extends its potential applications to neuroscience, lithography, and additive manufacturing.

[Effect of baicalin on pharmacokinetics of chlorogenic acid in rabbits].

OBJECTIVE: The objective of this paper is to investigate the pharmacokinetics of Chlorogenic acid (CA)and CA-Baicalin compound after intravenous injection (iv) in rabbits. METHOD: Ten rabbits were randomly divided into two groups. One group were administered CA (6 mg x kg(-1)) by iv, while the other were treated with CA (6 mg x kg(-1))-baicalin (90 mg x kg(-1)) compound by iv. administration. The concentration of CA in plasma was determined by HPLC. The key parameters of pharmacokinetics were calculated and analyzed by kinetic software. RESULT: Both Concentration-time courses of CA alone and CA-Baicalin compound were consistent with a two-compartment model after administration. The key pharmacokinetic parameters of CA alone were significantly different from that of CA-Baicalin compound (P < 0.05). Compared with the group treated with CA alone, the group treated with CA-Baicalin compound had dramatic increased in AUC(0-infinity), MRT and T1/2alpha. CONCLUSION: There are significant difference between the pharmacokinetics of CA and CA-Baicalin compound in rabbits. Baicalin has impact on the pharmacokinetics of CA in rabbits.