Giant Negative Electrocaloric Effect in (Pb,La)(Zr,Sn,Ti)O Antiferroelectrics Near Room Temperature.

(PbLa)(Zr SnTi)O (PLZST) antiferroelectric ceramics with x = 0.75-0.90 have been fabricated and found to be a novel electrocaloric material system with a giant negative electrocaloric effect (Δ T = -11.

High and Temperature-Insensitive Piezoelectric Strain in Alkali Niobate Lead-free Perovskite.

With growing concern over world environmental problems and increasing legislative restriction on using lead and lead-containing materials, a feasible replacement for lead-based piezoceramics is desperately needed. Herein, we report a large piezoelectric strain (d*) of 470 pm/V and a high Curie temperature (T) of 243 °C in (NaK)NbO-(BiLi)TiO-BaZrO lead-free ceramics by doping MnO. Moreover, excellent temperature stability is also observed from room temperature to 170 °C (430 pm/V at 100 °C and 370 pm/V at 170 °C).

Sustained release of insulin-like growth factor-1 from poly(lactide-co-glycolide) microspheres improves osseointegration of dental implants in type 2 diabetic rats.

Dental implantation is an effective and predictable treatment modality for replacing missing teeth and repairing maxillofacial defects. However, implants in patients with type 2 diabetes mellitus are likely to have a high failure rate and poor initial osseointegration. In the current study, we established an effective drug delivery system designed to improve osseointegration of dental implants in an animal model of type 2 diabetes.

[Studies of retinal dopamine transporter in experimental myopia].

Objective: To investigate the distribution of dopamine transporter (DAT) in the chicken eye and to explore the role of DAT in the occurrence of experimental myopia.

Methods: Thirty 2-day-old chickens were divided into four groups. Chicken eyes were fitted with lenses of -10 D (Group 1), -20 D (Group 2) and translucent goggles (Group 3) unilaterally.