Article
Polymer Science
Zijian Gu, Wenyue Ma, Jun Feng, Zhaoyang Liu, Bin Xu, Wenjing Tian
Summary: Enhanced circularly polarized emission can be achieved by increasing the dissymmetry factor of luminous nanostructures through changing the solvent composition. This has great significance for the fabrication of chiroptical organic nanomaterials.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
David J. Boegner, Micaela L. Everitt, Ian M. White
Summary: This article reports a new approach to achieve automated sample-to-answer diagnostics using thermally responsive alkane partitions. In narrow channels, liquified partitions can separate reagents and allow the transition of magnetic beads, replacing manual steps in conventional assays. In wider channels, liquified partitions can breach and enable the addition/mixing of preloaded reagents. Geometric design principles for stationary and removable partitions in fluidic channels are determined through calculation and experimentation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Chuanyue Sun, Jiabei Luo, Shengchang Yan, Kerui Li, Yaogang Li, Hongzhi Wang, Chengyi Hou, Qinghong Zhang
Summary: Smart textiles with good mechanical adaptability are crucial in personal protection, health monitoring, and aerospace applications. This study introduces skin-core structures of thermally responsive fibers with multiple commercial fiber cores and temperature-responsive hydrogel skins, which exhibit rapid mechanical adaptability, good thermohardening, and thermal insulation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Physics, Applied
Linghui Wang, Tae Hyun Kim, Vincenzo Costanza, Nicholas J. Higdon, Chiara Daraio
Summary: The study reveals the remarkable temperature response of CaCl2-crosslinked pectin in terms of ionic conductivity, indicating its potential applications in wearable devices and infrared sensors. Through controlled experiments, it is found that calcium ions are the dominant current carriers and the temperature response is attributed to changes in ion mobility, rather than variations in ion number density. Comparison of different multivalent ions suggests a positive correlation between their temperature responses and their binding energy to pectin. These fundamental findings provide relevant guidance for the future design of temperature-sensitive polymers and other materials for organic electronics.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Biomedical
Troy Hendrickson, Cristina Lupo, Guillermo Bauza, Liliana Tavares, Shannon Ingram, Sufen Wang, Michael Moreno, Ennio Tasciotti, Miguel Valderrabano, Francesca Taraballi
Summary: Atrial fibrillation induced stroke accounts for 15% of all strokes. Traditional approaches to prevent clot formation in the left atrial appendage (LAA) include using blood thinners, but some patients are unable to use them due to contraindications. A thermally responsive hydrogel called Thermogel has been developed to inject into the LAA, completely closing it off and preventing clot formation and device related thrombi.
MATERIALS TODAY BIO
(2022)
Article
Materials Science, Multidisciplinary
Congwu Ge, Wenxian Zhang, Wen Liang Tan, Christopher R. McNeill, Xike Gao
Summary: For the first time, atropisomerism has been exploited in organic semiconductors to achieve thermally responsive devices, demonstrating great potential.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Sisi Chen, Vincent Scholiers, Mengyao Zhang, Jiandong Zhang, Jian Zhu, Filip E. Du Prez, Xiangqiang Pan
Summary: In this study, a new thermally responsive C-Se dynamic covalent chemistry (DCC) was developed based on the transalkylation exchange between selenonium salts and selenides. The incorporation of this DCC into selenide-containing polymer materials allowed for regulated reprocessing capacity and demonstrated good healing ability at elevated temperatures as well as excellent solvent resistance at ambient temperature.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Mechanical
Lin Zhou, Changshen Du, Wei Wang, Kai Li
Summary: This paper investigates the behavior of the thermally responsive fiber-mass system in the inhomogeneous temperature field. A fiber engine module is proposed and its constitutive model and asymptotic relationship are established. The convenience of its application in the fiber-mass system is demonstrated through experiments, and its potential in driving a stirrer is explored.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Physics, Fluids & Plasmas
Kai Li, Zengfu Chen, Zhijian Wang, Shengqiang Cai
Summary: Recent experiments have shown that a slightly curved cylindrical rod placed on a hot surface can undergo continuous rolling due to inhomogeneous thermal expansion, while a closed torus can continuously evert or invert on a hot surface. These phenomena are driven by the cross-coupling between the thermal field and cyclic rotation, representing a zero-elastic-energy mode.
Article
Engineering, Electrical & Electronic
Xin Zhou, Yifan He, Saipeng Huang, Kun Zheng, Xinyu Cao, Jingnan Zhang, Gang Ye, Yongmei Ma
Summary: A reversible thermally responsive valve is developed using PNAGA/PSt copolymer, which shows suitable temperature-dependent wicking performance. The valve's wicking capacity can be increased by 5.75 times from 20 to 80 degrees C and can be cycled at least five times. The excellent wicking performance is ascribed to the hydrogen bonding variation of PNAGA/PSt. Based on this valve, a microflow platform is developed for water collection, miniature biochemical reactions, and microliquid control.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Analytical
Huiting Wang, Li Dong, Ling Zhang, Xiangxiang Chen, Qian Zhang, Lixin Xia
Summary: A thermally responsive hybrid poly(NIPAm-b-BVIm[FcCOO])-rGO composed of block co-polymer poly(NIPAm-b-BVImBr), reduced graphene oxide (rGO) and electroactive anions was designed and synthesized to achieve electroactive functionality. The control over the polymeric ionic liquids (PILs) segment allowed for excellent thermally responsive electrocatalysis with reversible 'ON-OFF' effect, showcasing the potential for broad application in the field of intelligent electrochemical sensors and devices.
Article
Chemistry, Analytical
Micaela L. Everitt, David J. Boegner, Ian M. White
Summary: To combat pandemics, rapid point-of-care diagnostics are needed to detect biomarkers in whole blood. A recent development called thermally responsive alkane partitions (TRAPs) enables sample-to-answer detection of SARS-CoV-2 antibodies in whole blood samples, with a limit of detection well below the clinically relevant threshold. This method can be used to track the progression of future pandemics and improve clinical and societal response.
Article
Engineering, Environmental
Andrew Z. Haddad, Akanksha K. Menon, Hyungmook Kang, Jeffrey J. Urban, Ravi S. Prasher, Robert Kostecki
Summary: The growing global demand for water has led to desalination technologies becoming the focus for producing freshwater from nontraditional sources. Among these, the use of thermally responsive ionic liquids in forward osmosis (FO) desalination, coupled with solar heat for regeneration, has shown great potential for energy-efficient and cost-effective desalination, as demonstrated in the successful treatment of produced water from oil wells in Southern California.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Astronomy & Astrophysics
Miguel Gonzalez-Bolivar, Orsola De Marco, Mike Y. M. Lau, Ryosuke Hirai, Daniel J. Price
Summary: At least one in five planetary nebulae are formed by the interaction between an asymptotic giant branch (AGB) star and its companion, where the companion spirals into the AGB star's envelope, ejecting the nebula and leaving behind a compact binary system. In this study, 3D smoothed particle hydrodynamics simulations are conducted to investigate the common envelope (CE) interaction between a 1.7 solar mass AGB star and a 0.6 solar mass companion. The results show that thermal pulses can trigger CEs and lead to a larger population of post-AGB, post-CE binaries. Furthermore, the shape of the CE and the features of the resulting planetary nebula differ depending on the type of star and the inclusion of recombination energy.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Martin Timusk, Janis Locs, Triin Kangur, Aarne Kasikov, Jarek Kurnitski, Andris Sutka
Summary: A concept of preparing thermally responsive hydrogels with rapid and reversible light scattering switching is presented. The material exhibits a luminous transmittance of over 95% and solar energy modulation of 59.91%, and the transition temperature can be chosen in a wide range by adjusting the pH and additives in the hydrogel solution. The unique thin layer on the surface, scalability to large surface areas, and robust and fast response make this material highly potential for smart window technology applications.
ACS APPLIED POLYMER MATERIALS
(2023)