| 1 | Piezoluminescent devices by designing array structures显示文摘Mechanoluminescence has attracted increasing attentions because it can convert the kinetic energy during human daily motions into light to be used in sensors and displays. However, its practical applications are still hindered by the weak brightness and limited color while under large forces. Herein, we developed novel piezoluminescent devices(PLDs) which could effectively emit visible light under low pressing forces through the stress-concentration and enhancing deformation on the basis of carefully-designed array structures. The emitting colors were also tunable by using bilayer luminescent film under different pressures. This work not only provides a new strategy to effectively harvest mechanical energy into light,but also presents a scalable, low-cost and color-tunable PLD which shows great potentials in various applications such as luminescent floors, shoes and stress-activated displays. | Luke Bao Xiaojie Xu Yong Zuo Jing Zhang Fei Liu Yifan Yang Fan Xu Xuemei Sun Huisheng Peng | 2019 | Science Bulletin2019，64，3： | 5 |
| 2 | Outcomes of central hepatectomy versus extended hepatectomy显示文摘Background: Central hepatectomy(CH) is more difficult than extended hepatectomy(EH) and is associated with greater morbidity. In this modern era of liver management with aims to prevent posthepatectomy liver failure(PHLF), there is a need to assess outcomes of CH as a parenchyma-sparing procedure for centrally located liver tumors. Methods: A total of 178 major liver resections performed by specialist surgeons from two Australian tertiary institutions between June 2009 and March 2017 were reviewed. Eleven patients had CH and 24 had EH over this study period. Indications and perioperative outcomes were compared between the groups. Results: The main indication for performing CH was colorectal liver metastases. There was no perioperative mortality in the CH group and four(16.7%) in the EH group( P = 0.285). No group differences were found in median operative time [CH vs. EH: 450 min(290–840) vs. 523 min(310–860), P = 0.328], intraoperative blood loss [850 mL(40 0–150 0) vs. 650 mL(10 0–20 0 0), P = 0.746] or patients requiring intraoperative blood transfusion [1(9.1%) vs. 7(30.4%), P = 0.227]. There was a trend towards fewer hepatectomyspecific complications in the CH group [3(27.3%) vs. 13(54.2%), P = 0.167], including PHLF(CH vs. EH: 0 vs. 29.2%, P = 0.072). Median length of stay was similar between groups [CH vs. EH: 9 days(5–23) vs. 12 days(4–85), P = 0.244]. Conclusions: CH has equivalent postoperative outcomes to EH. There is a trend towards fewer hepatectomy-specific complications, including PHLF. In appropriate patients, CH may be considered as a safe parenchyma-sparing alternative to EH. | Jenny Chan Luke Bradshaw Nezor Houli Laurence Weinberg Marcos V Perini Michael Fink Vijayaragavan Muralidharan Graham Starkey Robert Jones Bao Zhong Wang Christopher Christophi Mehrdad Nikfarjam | 2019 | Hepatobiliary & Pancreatic Diseases International2019，18，3： | 0 |
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