Molecular-channel driven actuator with considerations for multiple configurations and color switching.
Jiuke Mu,Gang Wang,Hongping Yan,Huayu Li,Xuemin Wang,Enlai Gao,Hou Chengyi,Anh Thi Cam Pham,Lianjun Wu,Qinghong Zhang,Yaogang Li,Zhi Ping Xu,Yang Guo,Elsa Reichmanis,Hongzhi Wang,Meifang Zhu +15 more
TLDR
An ambient-driven actuator that takes advantage of inherent nanoscale molecular channels within a commercial perfluorosulfonic acid ionomer (PFSA) film, fabricated by simple solution processing to realize a rapid response, self-adaptive, and exceptionally stable actuation.Abstract:
The ability to achieve simultaneous intrinsic deformation with fast response in commercially available materials that can safely contact skin continues to be an unresolved challenge for artificial actuating materials. Rather than using a microporous structure, here we show an ambient-driven actuator that takes advantage of inherent nanoscale molecular channels within a commercial perfluorosulfonic acid ionomer (PFSA) film, fabricated by simple solution processing to realize a rapid response, self-adaptive, and exceptionally stable actuation. Selective patterning of PFSA films on an inert soft substrate (polyethylene terephthalate film) facilitates the formation of a range of different geometries, including a 2D (two-dimensional) roll or 3D (three-dimensional) helical structure in response to vapor stimuli. Chemical modification of the surface allowed the development of a kirigami-inspired single-layer actuator for personal humidity and heat management through macroscale geometric design features, to afford a bilayer stimuli-responsive actuator with multicolor switching capability. Intrinsic deformation with fast response in commercially available materials that can safely contact skin continues to be a challenge for artificial actuating materials. Here the authors incorporate nanoscale molecular channels within perfluorosulfonic acid ionomer for self-adaptive and ambient-driven actuation.read more
Citations
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Engineering precision nanoparticles for drug delivery
Michael J. Mitchell,Margaret M. Billingsley,Rebecca M Haley,Marissa E. Wechsler,Nicholas A. Peppas,Robert Langer +5 more
TL;DR: Advances in nanoparticle design that overcome heterogeneous barriers to delivery are discussed, arguing that intelligent nanoparticles design can improve efficacy in general delivery applications while enabling tailored designs for precision applications, thereby ultimately improving patient outcome overall.
Journal ArticleDOI
Control of MXenes' electronic properties through termination and intercalation.
James L. Hart,Kanit Hantanasirisakul,Andrew C. Lang,Babak Anasori,David Pinto,Yevheniy Pivak,J. Tijn van Omme,Steven J. May,Yury Gogotsi,Mitra L. Taheri +9 more
TL;DR: Two-dimensional transition metal carbides and nitrides (MXenes) have emerged as highly conductive and stable materials, of promise for electronic applications, and in situ electric biasing and transmission electron microscopy are used to investigate the effect of surface termination and intercalation on electronic properties.
Journal ArticleDOI
Robust axion insulator and Chern insulator phases in a two-dimensional antiferromagnetic topological insulator
Chang Liu,Yongchao Wang,Hao Li,Yang Wu,Yaoxin Li,Jiaheng Li,Ke He,Yong Xu,Jinsong Zhang,Yayu Wang +9 more
TL;DR: This work investigates the quantum transport of both bulk crystal and exfoliated MnBi 2 Te 4 flakes in a field-effect transistor geometry and observes a large longitudinal resistance and zero Hall plateau, which are characteristics of an axion insulator state.
Journal ArticleDOI
Cancer health disparities in racial/ethnic minorities in the United States
Valentina A. Zavala,Paige M. Bracci,John M. Carethers,Luis G. Carvajal-Carmona,Nicole B. Coggins,Marcia Cruz-Correa,Melissa Davis,Adam J. de Smith,Julie Dutil,Jane C. Figueiredo,Rena K. Fox,Kristi D. Graves,Scarlett Lin Gomez,Andrea S. Llera,Susan L. Neuhausen,Lisa A. Newman,Tung T. Nguyen,Julie R. Palmer,Nynikka R. Palmer,Eliseo J. Pérez-Stable,Sorbarikor Piawah,Erik J. Rodriquez,María Carolina Sanabria-Salas,Stephanie L. Schmit,Silvia J. Serrano-Gomez,Mariana C. Stern,Jeffrey N. Weitzel,Jun J. Yang,Jovanny Zabaleta,Elad Ziv,Laura Fejerman +30 more
TL;DR: To eliminate cancer health disparities, it will be necessary to facilitate access to, and utilisation of, health services to all individuals, and to address structural inequities, including racism, that disproportionally affect racial/ethnic minorities in the USA.
Journal ArticleDOI
Conformal monolayer contacts with lossless interfaces for perovskite single junction and monolithic tandem solar cells
Amran Al-Ashouri,Artiom Magomedov,Marcel Roß,Marko Jošt,Martynas Talaikis,Ganna Chistiakova,Tobias Bertram,José A. Márquez,Eike Köhnen,Ernestas Kasparavicius,Sergiu Levcenco,Lidón Gil-Escrig,Charles J. Hages,Rutger Schlatmann,Bernd Rech,Bernd Rech,Tadas Malinauskas,Thomas Unold,Christian A. Kaufmann,Lars Korte,Gediminas Niaura,Vytautas Getautis,Steve Albrecht,Steve Albrecht +23 more
TL;DR: In this paper, hole-selective contacts for perovskite solar cells (PSCs) are introduced, which outperform all typical p-contacts in versatility, scalability and PSC power-conversion efficiency.
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