Article
Nanoscience & Nanotechnology
Sungmin Jung, Han Gyeol Jang, Jun Young Jo, Yoon Sang Kim, Doh C. Lee, Jaewoo Kim
Summary: Smart polymer materials with damage-detection and self-healing functionalities are developed by incorporating spiropyran (SP) beads into a Diels-Alder (DA) matrix. The dual functionality is highly dependent on the proportion of polyurethane (PU), with the best performance achieved at 40 wt% PU. A high healing efficiency of 96% is achieved via a dynamic DA reaction, and the dual-functionality remains repeatable after 10 cycles with a slight reduction in detection and healing efficiencies.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Guoqiang Han, Simeng Liu, Qi Yang, Fanyi Zeng, Wang Li, Xi Mao, Jiangping Xu, Jintao Zhu
Summary: A modified Langmuir-Blodgett method is reported for preparing large-area superlattice monolayers of polystyrene-grafted gold nanoparticles. The method involves pre-assembling the nanoparticles on a liquid surface and compressing the pre-assembled film in low-boiling-point solvent vapor.
Article
Chemistry, Multidisciplinary
Chun-Li Luo, Jun-Yi Jiao, Xing-Jie Su, Lin-Xin Zheng, Wei-Guo Yan, Dong-Zhou Zhong
Summary: Researchers developed interlinked microcone resistive sensors using polydimethylsiloxane (PDMS) nanocone arrays and self-assembled two-dimensional carbon nanotubes (CNTs) networks. These sensors can detect external pressure with high sensitivity and stability in a wide range of pressures, making them promising for monitoring human motion and wearable devices.
Article
Chemistry, Analytical
Chenfang Sun, Rui Li, Yaru Song, Xiaoqian Jiang, Congcong Zhang, Shanshan Cheng, Wenping Hu
Summary: A novel organic material, BFPA, has been developed for OFET-based biosensors, enabling ultrasensitive determination of AFP in human serum and differentiation between liver cancer patients and healthy individuals.
ANALYTICAL CHEMISTRY
(2021)
Article
Energy & Fuels
Nelson Barrios, Juan Pereira, Carlos Salas
Summary: The demulsification efficiency of an ethylene oxide-propylene oxide-ethylene oxide (EO37-PO56-EO37) block copolymer on asphaltene-stabilized water-in-toluene emulsions was investigated through bottle tests and Langmuir trough experiments. Concentration dependent disruption of an asphaltene monolayer was observed, leading to the formation of a new phase at 0.154 mu M aqueous polymeric surfactant concentration.
Article
Chemistry, Applied
Zian Wang, Longhui Zheng, Lixin Wu, Zixiang Weng
Summary: This study proposes a simple method to prepare a slippery coating for glass by ultrasonically immersing the substrate in a copolymer solution, which can form covalent bonds between the glass substrate and the coating. The coating exhibits low contact angle hysteresis, high transparency, and long service life.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Chemistry, Physical
Chenglong Cai, Ting Wang, Yixin Zhang, Nongyue He
Summary: The macroscopic ensembles of graphene are important for applications such as electromagnetic-interference shielding, thermal control, and sensors. A one-step strategy was developed to produce ultra-large neat graphene oxide film with excellent thermal conduction and photothermal conversion properties. By modifying the substrate with different concentrations of APTEs, defects in the UN-GO film structure were avoided, leading to improved thermal conductivities.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Lennart Graewe, Maximilian L. L. Hupfer, Martin Schulz, Atif Mahammed, Zeev Gross, Martin Presselt
Summary: Amphiphilic iron(III) corroles are assembled into well-defined quasi-two-dimensional molecular monolayers at air-water interfaces using the Langmuir-Blodgett (LB) technique. The optical density of the stacks of molecular monolayers allows for photometric detection of nitric oxide (NO) binding. The highest molecular efficiency for NO binding and detection is achieved at the smallest packing densities.
Article
Chemistry, Physical
Marystela Ferreira, Shiv K. Sharma, Suraj Paudyal, Roger M. Leblanc
Summary: This article explores the surface chemistry properties of the lactate oxidase (LacOx) enzyme monolayer at the air-subphase interface, finding that it remains active and stable without aggregation or irreversible domains. Spectroscopic experiments provided information on the enzyme's secondary structure conformation and showed that the LB film retains an alpha-helix conformation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Polymer Science
Jiwon Jeong, Jungju Ryu, Younhee Jeong, Zuzana Kronekova, Juraj Kronek, Daewon Sohn
Summary: This study investigates the different behaviors of amphiphilic gradient and diblock copolymers based on aliphatic and aromatic 2-oxazolines. The results show that gradient copolymers exhibit relatively rigid domains, while diblock copolymers have a flexible cushioning effect.
Article
Chemistry, Multidisciplinary
Michal Swierczewski, Plinio Maroni, Alexis Chenneviere, Mohammad M. Dadras, Lay-Theng Lee, Thomas Burgi
Summary: The Langmuir-Blodgett technique is used to deposit ultrathin films of Au-38(SC2H4Ph)(24) nanoclusters onto solid surfaces, such as mica and silicon. The morphology of the films transferred at different surface pressures in the mono/bi/trilayer regime is studied using atomic force microscopy. The effect of the time spent on the water surface before deposition on the final ordering of nanoclusters within the network is investigated using fast AFM, X-ray reflectivity, and grazing-incidence wide-angle X-ray scattering.
Article
Chemistry, Multidisciplinary
Michael Scheckenbach, Tom Schubert, Carsten Forthmann, Viktorija Glembockyte, Philip Tinnefeld
Summary: Advancements in DNA nanotechnology and DNA origami techniques have enabled the easy design and synthesis of complex and functional nanostructures. Molecular devices are prone to rapid degradation, so self-repair mechanisms are desirable. By utilizing the self-assembly and reconfigurability of DNA origami nanostructures, self-repair of defects can be induced.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Emanuela Gatto, Claudio Toniolo, Mariano Venanzi
Summary: Self-assembly is the most suitable approach to obtaining peptide-based materials on the nano- and mesoscopic scales, with applications ranging from personalized therapy with peptide drugs to solar energy production and bioelectronics. This study discusses the self-assembly of selected model and bioactive peptides, particularly focusing on the formation of peptide architectures of nano- and mesoscopic size in solution and on solid substrates.
Article
Polymer Science
Shuofeng Liang, Shuxiu Li, Chenrui Yuan, Dachuan Zhang, Jiahui Chen, Si Wu
Summary: Researchers have developed a polymer with azobenzene that exhibits more efficient photoinduced reversible solid-to-liquid transitions compared to its analogue. The polymer undergoes reversible cis-trans photoisomerization, and the more flexible backbone allows for faster transition from solid to liquid state. This study provides a new strategy for designing rapidly healable polymers with efficient solid-to-liquid transitions.
Article
Chemistry, Physical
Yue-Yang Ma, Ya Li, Hong-Xiang Huang, Dong-Jin Qian
Summary: In this work, luminescent lanthanide complexes were used as visual probes for the detection of toxic and dangerous materials. The Eu3+-dipicolinic acid complex functionalized nanoSiO2 composites and their LB films showed strong and enhanced red fluorescence emissions of Eu3+ ions when immersed in the aqueous TC solution, with high sensitivity and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
