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Could two-dimensional perovskites fundamentally solve the instability of perovskite photovoltaics

Chinese Physics B 2022年第11期31卷 42-53页

作者： luoran chen Hu Wang Yuchuan Shao Laboratory of Thin Film Optics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 00049China Key Laboratory of Materials for High Power Laser Chinese Academy of SciencesShanghai 201800China Hangzhou Institute for Advanced Study University of Chinese Academy of SciencesHangzhou 310024China

The high efficiency and low production cost enable the halide perovskite solar cells as a promising technology for the next generation ***,the relatively poor stability of the organic–inorganic halide perovskites hinders their commercial *** the past few years,two-dimensional(2D)perovskite has emerged as a more stable alternative to the three-dimensional(3D)counterparts and attracted intense research *** many attempts and advances have been made,it is still ambiguous that whether the 2D perovskites could bring closure to the stability *** answer this essential question,a systematic study of the nature of 2D halide perovskites is ***,we focus on the stability investigations of 2D perovskites from different perspectives,especially light,heat,ion migration and *** remaining challenges and opening problems are also *** further material and device engineering,we believe that the 2D perovskites would promote perovskite solar cells to a promising future.

关键词： halide perovskite solar cells two-dimensional perovskites stability

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Developing sensor materials for screening intestinal diseases

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Materials Futures 2022年第2期1卷 64-88页

作者： cheng Zhao Xiaoxuan Zhang Guopu chen luoran Shang Shanghai Xuhui Central Hospital Zhongshan-Xuhui Hospitaland the Shanghai Key Laboratory of Medical EpigeneticsInternational Co-laboratory of Medical Epigenetics and Metabolism(Ministry of Science and TechnologyInstitutes of Biomedical Sciences)Fudan UniversityShanghaiPeople’s Republic of China Department of Gastroenterology Institute of Translational MedicineThe Affiliated Drum Tower Hospital of Nanjing University Medical School210008 NanjingPeople’s Republic of China State Key Laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096People’s Republic of China Oujiang Laboratory(Zhejiang Laboratory for Regenerative Medicine Vision and Brain Health)Wenzhou HospitalWenzhouZhejiang325001People’s Republic of China

Intestinal diseases that have high mortality and morbidity rates and bring huge encumbrance to the public medical system and economy worldwide,have always been the focus of clinicians and scientific *** diagnosis and intervention are valuable in the progression of many intestinal ***,the emergence of sensor materials can effectively assist clinical early diagnosis and health *** accurately locating the lesion and sensitively analyzing the level of disease markers,these sensor materials can help to precisely diagnose the stage and state of lesions,thereby avoiding delayed *** this review,we provide comprehensive and in-depth knowledge of diagnosing and monitoring intestinal diseases with the assistance of sensor materials,particularly emphasizing their design and application in bioimaging and *** review is dedicated to conveying practical applications of sensor materials in the intestine,critical analysis of their mechanisms and applications and discussion of their future roles in *** believe that this review will promote multidisciplinary communication between material science,medicine and relevant engineering fields,thus improving the clinical translation of sensor materials.

关键词： sensors intestine disease bioimaging biodetection

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Boston Ivy-Inspired Disc-Like Adhesive Microparticles for Drug Delivery

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Research 2021年第1期2021卷 1604-1614页

作者： Lijun Cai Guopu chen Yuetong Wang cheng Zhao luoran Shang Yuanjin Zhao State Key Laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing 210096China Zhongshan-Xuhui Hospital The Shanghai Key Laboratory of Medical EpigeneticsThe International Co-Laboratory of Medical Epigenetics and MetabolismMinistry of Science and Technologyand Institutes of Biomedical SciencesFudan UniversityShanghai 200032China Department of Rheumatology Immunology Institute of Translational MedicineThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing 210008China

Microparticles with strong adherence are expected as efficient drug delivery ***,we presented an ingenious hydrogel microparticle recapitulating the adhesion mechanism of Boston ivy tendrils adhesive discs(AD)for durable drug *** particles were achieved by replicating a silica colloidal crystal aggregates assembled in a droplet template after rapid solvent *** to their unique shape,the nanostructure,and the sticky hydrogel component,such novel microparticles exhibited prominent adhesive property to the wet tissue *** was demonstrated that the bioinspired microcarriers loading with dexamethasone had a good therapeutic effect for ulcerative colitis due to the strong adhesion ability for prolonging the maintenance of drug *** virtues make the biomimetic microparticles potentially ideal for many practical clinical applications,such as drug delivery,bioimaging,and biodiagnostics.

关键词： environment Boston template

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Bio-inspired clamping microneedle arrays from flexible ferrofluid-configured moldings

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Science Bulletin 2019年第15期64卷 1110-1117页

作者： Xiaoxuan Zhang Fengyuan Wang Yunru Yu Guopu chen luoran Shang Lingyu Sun Yuanjin Zhao State Key Laboratory of Bioelectronics School of Biological Science and Medical EngineeringSoutheast UniversityNanjing210096China Department of Dermatology Zhongda HospitalSoutheast UniversityNanjing210009China Department of General Surgery Jinling HospitalMedical School of Nanjing UniversityNanjing210002China School of Engineering and Applied Sciences Harvard UniversityCambridgeMA02138USA

Microneedle(MN)arrays have demonstrated value for cosmetics,diagnosis,transdermal drug delivery,and other biomedical *** effort has been devoted to developing simple stratagem for creating versatile moldings and generating functional MN ***,inspired by the serrated microstructure of mantises’forelegs,we present a novel serration-like clamping MN array based on ferrofluidconfigured *** from the flexibility and versatility of ferrofluids,negative microhole array moldings with various sizes and angles toward the midline could be created *** corresponding biocompatible polymer MN arrays with both isotropic and anisotropic structures could then be produced feasibly and cost-effectively by simply replicating these *** was found that the resultant serrated clamping MN arrays had the ability to adhere to skin firmly,enabling them to be used over a relatively long time and while the recipient was *** proposed technology performed well in minimally invasive drug administration and sustained glucocorticoids release during treatment for imiquimod-induced psoriasis in *** features indicated that such MN arrays could play important roles in wearable transdermal drug delivery systems and in other applications.

关键词： Bioinspired Ferrofluids Microneedle arrays Drug release Biomaterials

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