Article
Materials Science, Multidisciplinary
Stephanie Arouh, Abhinav Nishant, Jeffrey Pyun, Robert A. Norwood
Summary: In this study, Chalcogenide hybrid inorganic/organic polymers (CHIPs) were characterized to study their refractive index and electronic properties. The results show that these materials have great potential for optical and photonic applications, especially in telecommunications, and may also be suitable for applications such as electro-optic devices and capacitors.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Biochemistry & Molecular Biology
Mingfang Huo, Yun Hu, Qin Xue, Jingsong Huang, Guohua Xie
Summary: Organic/inorganic hybrid materials have shown great potential in the field of multilayer antireflection films due to their excellent optical properties. In this study, a nanocomposite of polyvinyl alcohol (PVA) and titanium isopropoxide (TTIP) was prepared, exhibiting a wide, tunable refractive index window of 1.65-1.95 at a wavelength of 550 nm. The hybrid films demonstrated low surface roughness, low haze, and high transmittances, making them suitable for optical applications and improving the power conversion efficiency of perovskite solar cell modules.
Article
Polymer Science
Hasan Berk, Murat Kaya, Atilla Cihaner
Summary: Elemental sulfur was copolymerized with octavinyl polyhedral oligomeric silsesquioxane (OV-POSS) to obtain a highly crosslinked polysulfur copolymer. The copolymer showed excellent thermal stability and adsorption capacity for toxic heavy metal ions.
Article
Polymer Science
Cedric P. P. Ambulo, Kyle J. J. Carothers, Ashford T. T. Hollis, Hannah N. N. Limberg, Lirong Sun, Carl J. J. Thrasher, Michael E. E. McConney, Nicholas P. P. Godman
Summary: Inverse vulcanization techniques are utilized to produce thermodynamically stable sulfur polymers with higher refractive indices and improved transparency in the mid-wave infrared region compared to organic polymers. This article discusses postsynthetic modification of sulfur polymers created via inverse vulcanization to generate novel inorganic/organic photoresists. Amine-containing sulfur resins are postfunctionalized with cross-linkable alkynes, allowing for rapid photo-crosslinking under UV irradiation to create patternable films within 10 minutes. This resin development enables the utilization of sulfur polymers in processes requiring spatial and hierarchical control and expands the applications of sulfur-based organic polymer systems with optical properties.
MACROMOLECULAR RAPID COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Angus W. Ritchie, Harrison J. Cox, Hassan Gonabadi, Steve J. Bull, Jas Pal S. Badyal
Summary: ASPD is a single-step, low-temperature, and dry method for preparing high refractive index hybrid polymer or polymer-inorganic nanocomposite coatings. Thin films with high refractive index can be easily deposited onto various substrates by using ASPD.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Chenghao Xin, Zhelu Hu, Zhuoqun Fang, Mahima Chaudhary, Hengyang Xiang, Xiangzhen Xu, Lionel Aigouy, Zhuoying Chen
Summary: Solution-processed organic and organic-inorganic hybrid thermoelectric devices show strong potential in energy harvesting and smart textile integration, especially when utilizing the photothermal effect of colloidal plasmonic gold nanoparticles. The optimized hybrid photothermoelectric generators demonstrate significantly increased voltage and power output, offering bright prospects for the development of energy harvesting smart textiles.
MATERIALS TODAY ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Jianwen Peng, Nan Zheng, Pingchuan Shen, Zujin Zhao, Rongrong Hu, Ben Zhong Tang
Summary: The development of polymerization methodology is crucial for obtaining polymers with diverse structures and functions. In this study, efficient transition-metal-free room temperature regioselective polymerizations of selenium and alkynones were developed to create functional polymers with unique selenium-containing heterocycles. The resulting polymers exhibited excellent solubility, stability, and high refractive indices.
Article
Materials Science, Multidisciplinary
Abhinav Nishant, Kyung-Jo Kim, Sasaan A. Showghi, Roland Himmelhuber, Tristan S. Kleine, Taeheon Lee, Jeffrey Pyun, Robert A. Norwood
Summary: This study reports on a new class of high refractive index polymers that can be used for the fabrication and characterization of photonic devices. These polymers have low optical losses and high refractive indices, and can be fabricated using inexpensive methods. The fabricated photonic devices include single-mode optical waveguides, splitters, interferometers, and high Q factor ring resonators. The experimental results show that these polymers have low propagation losses and high cavity finesse.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ryo Muraguchi, Wataru Futagami, Yuko Hakoshima, Keisuke Awaya, Shintaro Ida
Summary: This study demonstrated the potential of using hollow silica nanoparticles to create antireflection films with low reflectance, by controlling the number of layers and filling gaps to optimize performance. By tuning the particle concentration, films with desired optical properties and resistance to contamination were achieved.
Article
Chemistry, Physical
Yuxun Ren, Nicholas Hortance, JamesR McBride, Kelsey B. Hatzell
Summary: In this study, an in situ cross-linking reaction was used to embed sodium thioantimonate in a protective polymer host, forming a flexible hybrid electrolyte film. This hybrid solid electrolyte successfully protected the sodium metal and enabled the stable operation of a sodium-sulfur battery.
ACS ENERGY LETTERS
(2021)
Article
Energy & Fuels
Atanu Purkayastha, Arun Tej Mallajosyula
Summary: Three optimization algorithms based on the transfer matrix method were compared for optical modeling of series connected tandem solar cells, showing their effectiveness in improving the efficiency of organic-inorganic hybrid perovskite based TSCs. The algorithms were able to optimize the maximum JPH values for different types of TSCs, demonstrating the potential for enhancing photovoltaic performance.
Article
Optics
Joao P. Santos, Joerg Bierlich, Jens Kobelke, Marta S. Ferreira
Summary: A fiber sensor based on a balloonlike silica capillary is proposed and demonstrated for simultaneous measurement of displacement and temperature. The sensor configuration with a hollow-core fiber and a balloon shape enhances the sensing performance. It provides high sensitivity to displacement and temperature, and is cost-effective with a simple fabrication process.
Article
Chemistry, Multidisciplinary
Joanna Schneider, Jason X. Liu, Victoria E. Lee, Robert K. Prud'homme, Sujit S. Datta, Rodney D. Priestley
Summary: We demonstrate a method to fabricate stable hNPs with tunable morphologies by incubating polystyrene nanoparticles with citrate-stabilized gold nanocatalysts. The process parameters and molecular parameters can control the loading and dispersal of the nanocatalysts. We classify the morphologies into three regimes and show that their emergence has implications for controlling reaction rates.
Article
Multidisciplinary Sciences
Miyeon Lee, Yuna Oh, Jaesang Yu, Se Gyu Jang, Hyeonuk Yeo, Jong-Jin Park, Nam-Ho You
Summary: Achieving a balance between optical properties and thermal properties in infrared transmissive polymeric materials is challenging. This study proposes a strategy to reduce IR absorption by synthesizing a sulfur copolymer, resulting in a material with high refractive index and IR transparency in the LWIR region.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Bingyan Sang, Xiao Wang, Kaiqiang Feng, Shaonan Gu, Guijin Li, Kun Yue, Yanyan He, Qian Wang, Tingting Gao, Guowei Zhou
Summary: This research develops an organic-inorganic hybrid cathode based on PEDOT and hydrated vanadium oxide with high discharge capacity and stable cycle life, and improves the reversibility of zinc by adding maltitol electrolyte additive.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Multidisciplinary
Md Mahiuddin, Prianka Saha, Bungo Ochiai
Article
Chemistry, Multidisciplinary
Prianka Saha, Md Mahiuddin, A. B. M. Nazmul Islam, Bungo Ochiai
Summary: This study presents a green and cost-effective synthesis method of AgNPs using citrus fruit peel extract, showing efficient reduction and degradation capabilities. The synthesized AgNPs exhibit stable dispersion and catalytic activity in various reactions, providing a potential for industrial green fabrication.
Letter
Materials Science, Multidisciplinary
Bungo Ochiai, Kohei Kikuta, Yoshimasa Matsumura, Hiroshi Horikoshi, Kikuo Furukawa, Miyuki Miyamoto, Yoshio Nishimura
Summary: Transparent, photochromic, and X-ray shielding polymer films were prepared by bulk radical copolymerization of bismuth(III) methacrylate and N,N-dimethylacrylamide. The refractive indices and X-ray shielding abilities increased with the bismuth content. Photochromism occurred through reversible redox reactions between the bismuth carboxylate structure and Bi(0), with the advantage of a simple preparation procedure using inexpensive substances over previously reported bismuth-containing polymers.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yunkai Sun, Yaqian Ding, Wenwen Zhou, Xiaofeng Wang, Chunhong Tan, Yoshimasa Matsumura, Bungo Ochiai, Quanli Chu
Summary: The polymers polyBAUEE and polyBAUP exhibit high selectivity and efficiency in adsorbing precious metal ions, with polyBAUEE showing faster adsorption rates and higher adsorption capacities compared to polyBAUP. Additionally, the adsorption process results in the reduction of Au(III) to Au(0) nanoparticles, indicating a regioselective recognition mechanism based on the ring structure and ureido groups.
Article
Polymer Science
Yoshimasa Matsumura, Hiroshi Horikoshi, Kikuo Furukawa, Miyuki Miyamoto, Yoshio Nishimura, Bungo Ochiai
Summary: Highly refractive and X-ray shielding polymer films were prepared by copolymerization, and they showed higher refractive index and radiopacity. The thermal stability and flexural module of the films can be controlled by the feed ratio. These polymers have potential applications in X-ray shielding of optical materials with high refractive indices.
Article
Polymer Science
Bungo Ochiai, Katsutaka Soegawa
Summary: This paper reports on the curing behavior of epoxy glycidates bearing adjacent ester groups, showing that they can be cured with diethylenetriamine under mild conditions and exhibit high adhesiveness. The curing starts at a lower temperature and has a slower rate, but the cured products demonstrate a significantly higher adhesive strength.
Article
Chemistry, Multidisciplinary
M. K. Mohammad Ziaul Hyder, Bungo Ochiai
Summary: The synthesis and practical application of a novel scavenger for precious metals was reported. The scavenger was found to have the capability to adsorb Ag(I), Pd(II), and Au(III) from aqueous media under different conditions, and exhibited good regeneration performance.
Article
Chemistry, Multidisciplinary
Md Mahiuddin, Bungo Ochiai
Summary: Bismuth nanoparticles (BiNPs) were synthesized using lemon juice as a green alternative, and their formation and growing process were clarified. The use of lemon juice as a reducing and capping agent provides a green and easily accessible method for synthesizing BiNPs. The synthesized BiNPs show excellent catalytic efficacy in wastewater treatment.
Article
Polymer Science
Bungo Ochiai, Miharu Yashima, Katsutaka Soegawa, Yoshimasa Matsumura
Summary: Biodegradable epoxy thermosets with high adhesiveness were developed, which can be cured through copolymerization. The cured products can adhere even inert cycloolefin polymers and polyimides, and can be hydrolytically and biologically degraded.
Article
Green & Sustainable Science & Technology
M. Mahiuddin, B. Ochiai
Summary: This study reports the biogenic synthesis of bismuth/reduced graphene oxide (Bi/rGO) nanocomposite using lemon juice as a reducing agent. Lemon juice effectively reduces Bi3+ ions and GO to form Bi/rGO nanocomposites. The BiNPs are anchored on exfoliated rGO sheets, leading to excellent catalytic efficiency for reducing 4-nitrophenol. The biogenic method offers a simpler and greener approach for large-scale fabrication of Bi/rGO nanocomposites.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Engineering, Multidisciplinary
Bungo Ochiai, Seiya Koseki, Yoshimasa Matsumura
Summary: Paper chromatography is a cost-effective and simple analytical method for analyzing hydrophilic substances. By modifying filter paper with phenyl isocyanate, a stationary phase called PI-FP was developed for the separation of substances with lower polarity. The PI-FP exhibited better separation performance than esterified FPs and allowed for the analysis of dyes with different clogP values. The system was successfully applied for the preparative separation of dyes using thread-like paper modified with PI.
Article
Chemistry, Multidisciplinary
Md Abdur Rahman, Bungo Ochiai
Summary: Bone malignancy treatment can benefit from the use of functionalized magnetic nanoparticles with pH-sensing ability and bisphosphonate moieties. Researchers have successfully synthesized Fe3O4-NCCS-FITC-AL nanoparticles that are superparamagnetic, colloidally stable, and compatible with blood. These nanoparticles exhibit selective membranolysis of erythrocytes at pH 5.0, making them a potential tool for targeted imaging and therapy of malignant bone diseases.
Article
Engineering, Multidisciplinary
Md. Mahiuddin, Bungo Ochiai
Summary: The sustainable synthesis of reduced graphene oxide (rGO) using lemon juice as a reducing agent was demonstrated in this study, showing successful reduction of graphene oxide (GO) without using toxic chemicals. The resulting rGO exhibited promising adsorption properties for organic pollutants, with a high adsorption capacity and good reusability. This green and eco-friendly method provides a new prospect for large-scale production of rGO in a cost-effective and safe manner.
Article
Chemistry, Multidisciplinary
Md Mahiuddin, Bungo Ochiai
Summary: Lemon juice serves as an effective reducing and capping agent for the synthesis of BiNPs in basic aqueous media, which are stable and catalyze the reduction of 4-nitrophenol to 4-aminophenol by NaBH4.
Article
Engineering, Multidisciplinary
Bungo Ochiai, Yohei Shimada
