Safety and efficacy of ultrasound-guided low-pressure perfusion mini-percutaneous nephrolithotomy in children aged 1-7 years: a retrospective observational study.

Purpose: This article analyzed the safety and efficacy of ultrasound-guided mini-percutaneous nephrolithotomy (MPCNL) with low-pressure perfusion for the treatment of upper urinary tract stones in children.

Methods: The clinical data of 690 patients (805 renal units) aged 1-7 years were retrospectively analyzed in terms of postoperative outcome.

Results: The mean patient age was 3.

A Synergistic Enhancement Strategy for Realizing Ultralong and Efficient Room-Temperature Phosphorescence.

An enhancement strategy is realized for ultralong bright room-temperature phosphorescence (RTP), involving polymerization between phosphor monomers and acrylamide and host-guest complexation interaction between phosphors and cucurbit[6,7,8]urils (CB[6,7,8]). The non-phosphorescent monomers exhibit 2.46 s ultralong lifetime after copolymerizing with acrylamide.