Honglei Guo, Y Uehara, Takahiro Matsuda, Ryuji Kiyama et al.
Soft tissue engineering requires antifouling materials that are biocompatible and mechanically flexible. Conventional hydrogels containing more than 70 wt% water are thus promising antifouling material candidates. However, some hydrogels are difficult to apply in internal body organs because of unde...
Muhammad Ilyas, Md. Anamul Haque, Youfeng Yue, Takayuki Kurokawa et al.
We study the effect of dehydration on the structure and mechanical properties of anisotropic lamellar hydrogels, consisting of alternative stacking of several thousands of nanoscale rigid bilayers from amphiphilic poly(dodecyl glyceryl itaconate) (PDGI) and submicroscale soft hydrogel layers from hy...
Youfeng Yue, Xufeng Li, Takayuki Kurokawa, Md. Anamul Haque et al.
Patterned photonic hydrogels showing stimuli responses to stress/pH were developed to decouple the stimuli with the ease of a visible readout.
Md. Anamul Haque, Kei Mito, Takayuki Kurokawa, Tasuku Nakajima et al.
One-dimensional photonic crystals or multilayer films produce colors that change depending on viewing and light illumination angles because of the periodic refractive index variation in alternating layers that satisfy Bragg's law. Recently, we have developed multilayered photonic hydrogels of two di...
Kei Mito, Md. Anamul Haque, Tasuku Nakajima, Maki Uchiumi et al.
Jamil Ahmed, Tetsurou Yamamoto, Honglei Guo, Takayuki Kurokawa et al.
A simplified model describing the sliding friction of hydrogel on solid surface by dynamic adsorption of the polymer chains is proposed on the basis of polymer adsorption–repulsion theory. This dynamic adsorption model is used to analyze the friction results of zwitterionic hydrogels sliding over gl...
Tasuku Nakajima, Corentin Durand, Xu Feng Li, Md. Anamul Haque et al.
PDGI-PAAm gels with well oriented lipid bilayers show a quasi-unidirectional shrinkage upon uniaxial stretching along the bilayers. They shrink largely parallel to the bilayer but slightly perpendicular to it in order not to increase the bilayer area and its interfacial energy. Such an anisotropic d...
Md. Anamul Haque, Kunpeng Cui, Muhammad Ilyas, Takayuki Kurokawa et al.
Synthetic hydrogels possessing both macroscopic anisotropic structure and toughness, which are analogous to the load-bearing bio-tissues such as muscles and tendons, are rarely available. Studying the molecular mechanism of tough and anisotropic hydrogel under deformation is beneficial to understand...
Ya Nan Ye, Md. Anamul Haque, Akane Inoue, Yoshinori Katsuyama et al.
Biological tissues usually have complex superstructures and elaborated functionalities. However, creating superstructures in soft and wet hydrogels is challenging because of the absence of effective approaches to control the molecular orientation. Here we introduce a method to create superstructures...
Md. Anamul Haque, Takayuki Kurokawa, Tasuku Nakajima, Gen Kamita et al.
Tuning the self-assembled structures in amorphous hydrogels will enrich the functionality of hydrogels. In this study, we tuned the structure of a photonic hydrogel, which consists of polymeric lamellar bilayers entrapped inside a polyacrylamide network, simply by molecular triggering using an ionic...
Ryuichi Takeshige, Kyaw Kyaw Htoo, Masanori Onishi, Md. Farhadur Rahman et al.
Abstract Recent developments in Unmanned Aerial Vehicles (UAVs) and Light Detection and Ranging (LiDAR) technology have enhanced the ability to capture precise three‐dimensional forest information at a lower cost. This article reports four types of high‐resolution digital datasets derived from UAV‐L...
Koshiro Sato, Md. Anamul Haque, Gen Kamita, Youfeng Yue et al.
自然界のさまざまな生き物は秩序構造からなる構造色をもつが，近年この秩序構造を高分子材料に導入し発色をもたせようとする試みが，とくにセンサーの分野から注目されている。われわれは水中で秩序的な二重膜構造を形成するイタコン酸ドデシルグリセリル（DGI）に着目して研究を行ってきた。本稿では，DGIとアクリルアミドにより構成される秩序構造をもったゲルの合成，力学的な異方性，応力変化による構造色の変化などについて紹介する。