Article
Polymer Science
Zhihui Zhang, Zhengdong Zhao, Yujia Lu, Di Wang, Chengyu Wang, Jian Li
Summary: A CA-Eu(III) complex was synthesized through coordination reaction of cellulose acetate (CA) and Eu3+, which was further doped with Tb(III) to enhance Eu3+ luminescence and functionalize the CA film. The best fluorescence performance was achieved at a CA: Eu3+ ratio of 3:1 with a reaction time of 65 min. The light conversion film showed high transparency, tensile strength, and flexibility, converting harmful UV light to beneficial red light for photosynthesis in plants.
Article
Multidisciplinary Sciences
Meng-Cheng Yen, Chia-Jung Lee, Kang-Hsiang Liu, Yi Peng, Junfu Leng, Tzu-Hsuan Chang, Chun-Chieh Chang, Kaoru Tamada, Ya-Ju Lee
Summary: The researchers utilized the phenomenon of electric field induced ion migration in perovskite quantum dots to realize resistive random-access memory and light-emitting electrochemical cell functionalities in a new device. By modulating bias polarity, the device can switch from a memory state to a light-emitting cell state within milliseconds, and they also demonstrated a fully perovskite-based light-emitting memory operating at 5 kHz.
NATURE COMMUNICATIONS
(2021)
Article
Limnology
Jennifer Mallon, Tyler Cyronak, Emily R. Hall, Anastazia T. Banaszak, Dan A. Exton, Adrian M. Bass
Summary: The study identifies the complex light-driven dynamics of metabolic processes in coral reef organisms and emphasizes the need for a more comprehensive understanding of reef metabolism to predict the future impacts of global change.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Plant Sciences
Martina Legris, Bogna Maria Szarzynska-Erden, Martine Trevisan, Laure Allenbach Petrolati, Christian Fankhauser
Summary: The study found that in Arabidopsis, phototropins regulate leaf flattening by perceiving light direction and controlling the auxin signaling pattern, which affects cell expansion. The components of phototropin signaling in leaves differ partially from those in hypocotyls, and the response to light on the upper and lower sides of the leaf blade suggests a partially distinct requirement for phototropin signaling components on each side.
Article
Engineering, Electrical & Electronic
Alok Kumar Jain, Piraviperumal Malar
Summary: In this work, n-Si/p-Sb2Se3 heterojunction was fabricated via thermal evaporation growth of Sb2Se3 onto (100) oriented n-type Si. The heterojunction exhibited diode-like rectifying behavior under dark and illumination conditions, and showed high responsivity and detectivity values. This has potential applications in self-powered photodetectors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Multidisciplinary Sciences
Amanda Williams, Eric N. Chiles, Dennis Conetta, Jananan S. Pathmanathan, Phillip A. Cleves, Hollie M. Putnam, Xiaoyang Su, Debashish Bhattacharya
Summary: Understanding the response of coral holobionts to environmental changes, particularly coral bleaching caused by heat stress, is crucial for conservation efforts. Research has identified certain dipeptides as potential diagnostic markers for thermal stress in wild coral populations.
Article
Chemistry, Physical
Xiaochao Zhang, Tingting Xue, Changming Zhang, Jiancheng Wang, Jinbo Xue, Rui Li, Yawen Wang, Caimei Fan
Summary: A hydrangea finch coral-like Bi12SiO20 film with 2D nanosheets was synthesized on a Bi substrate for the first time via an electrochemical-solution ion-exchange method, showing superior CO2 photoreduction activity under sunlight. The findings propose a feasible in situ preparation method for Bi-based films.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Tal Zaquin, Iddo Pinkas, Anna Paola Di Bisceglie, Angelica Mucaria, Silvia Milita, Simona Fermani, Stefano Goffredo, Tali Mass, Giuseppe Falini
Summary: This study highlights the importance of magnesium ions in defining the shape, morphology, and polymorphism of biodeposited CaCO3 in the presence of soluble organic matrix (SOM) from coral skeletons. It suggests a magnesium-dependent biological control on the deposition of coral skeletons.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Biochemistry & Molecular Biology
Inbal Ayalon, Yaeli Rosenberg, Jennifer I. C. Benichou, Celine Luisa D. Campos, Sherry Lyn G. Sayco, Michael Angelou L. Nada, Jake Ivan P. Baquiran, Charlon A. Ligson, Dror Avisar, Cecilia Conaco, Helga U. Kuechly, Christopher C. M. Kyba, Patrick C. Cabaitan, Oren Levy
Summary: Artificial light at night can negatively impact the health of humans and ecosystems, particularly marine organisms like coral reefs. A study has shown that light pollution can cause delayed gametogenesis and unsynchronized gamete release in coral species from the Indo-Pacific Ocean, which may further threaten coral populations that are already under severe degradation. A global model assessment of light pollution impact is provided to help incorporate this important variable into coral reef conservation planning.
Article
Multidisciplinary Sciences
Qihua Zhang, Heemal Parimoo, Eli Martel, Songrui Zhao
Summary: This research demonstrates a new method for producing vertical AlGaN deep UV LEDs on a silicon substrate using a thin AlN buffer layer. The configuration offers advantages such as low cost and high performance.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Claire L. Ross, Andrew Warnes, Steeve Comeau, Christopher E. Cornwall, Michael V. W. Cuttler, Melissa Naugle, Malcolm T. McCulloch, Verena Schoepf
Summary: Ocean warming is causing significant changes in coral reefs, particularly in the growth of branching corals. This study investigates the impacts of temperature and light on coral physiology and calcification mechanisms, revealing the interactive and context-specific effects. Realistic multi-variate dynamic experiments are essential in predicting coral calcification response to ocean warming.
COMMUNICATIONS EARTH & ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Wei Du, Ganghua Zhang, Ping Chen, Pingying Tang, Jing Wang, Dezeng Li, Jingshan Hou, Yongzheng Fang
Summary: A novel quaternary oxysulfide, FeOCuS, with a tetragonal anti-PbO-type structure and a visible-light bandgap of about 1.37 eV, has been successfully synthesized. It has achieved a high photocurrent density of 3.89 mA cm(-2) under simulated AM 1.5 G illumination with only a 0.4 V bias voltage, demonstrating its potential for optoelectronic applications.
CHEMICAL COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Ryo Matsumura, Naoki Fukata
Summary: This study achieved highly tensile-strained germanium films on insulating substrates using high-speed laser annealing, and observed a unique self-organized growth phenomenon resulting in specific crystal film orientation, which may be related to surface energy.
Article
Biology
Netanel Kramer, Jiaao Guan, Shaochen Chen, Daniel Wangpraseurt, Yossi Loya
Summary: The morphological architecture of corals plays a crucial role in their adaptation to light-limited environments. Through micro-computed tomography scanning and 3D simulations, this study reveals distinct morphotypes of the coral species Stylophora pistillata depending on depth, indicating that coral skeletal micromorphology is key to coral photoadaptation.
COMMUNICATIONS BIOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Manchen Hu, Sebastian Fernandez, Qi Zhou, Pournima Narayanan, Balreen Saini, Tracy H. Schloemer, Junrui Lyu, Arynn O. Gallegos, Ghada H. Ahmed, Daniel N. Congreve
Summary: In this study, the uniformity of perovskite films was improved by adding water into the precursor solution, which enhanced the crystallization process of spin-coated 2D perovskites. The resulting films showed reduced leakage current and faster recombination rates due to improved uniformity and reduced nanoplate size. The fabricated PeLEDs emitted bright violet light at 408 nm with a significantly higher external quantum efficiency compared to control devices, indicating a promising approach towards cost-effective and efficient ultraviolet PeLEDs.
Article
Environmental Sciences
Yuki Ota, Atsushi Suzuki, Kyoko Yamaoka, Masayuki Nagao, Yuichiro Tanaka, Toshiaki Irizuki, Osamu Fujiwara, Kaoru Yoshioka, Shungo Kawagata, Shigenori Kawano, Osamu Nishimura
Summary: The study on heavy metal pollution in Matsushima Bay, Japan, revealed that the accumulation of heavy metals in marine sediments was influenced by multiple factors such as mega-tsunami, anthropogenic activities, and redox conditions. Different levels of enrichment of various heavy metals were found in sediments at different years and locations, highlighting the complexity of heavy metal contamination in coastal areas.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Multidisciplinary Sciences
Mariko Iijima, Jun Yasumoto, Akira Iguchi, Kiyomi Koiso, Sayaka Ushigome, Natsuki Nakajima, Yuko Kunieda, Takashi Nakamura, Kazuhiko Sakai, Mina Yasumoto-Hirose, Kanami Mori-Yasumoto, Nanami Mizusawa, Haruna Amano, Atsushi Suzuki, Mitsuru Jimbo, Shugo Watabe, Ko Yasumoto
Summary: This study demonstrates the significant role of calcareous sediments in coral reefs in mediating the impact of terrestrial runoff on corals by storing and releasing phosphate. High phosphate concentrations in seawater inhibit the skeletal formation of coral juveniles.
ROYAL SOCIETY OPEN SCIENCE
(2021)
Article
Multidisciplinary Sciences
Azumi Kuroyanagi, Takahiro Irie, Shunichi Kinoshita, Hodaka Kawahata, Atsushi Suzuki, Hiroshi Nishi, Osamu Sasaki, Reishi Takashima, Kazuhiko Fujita
Summary: This study found that ocean acidification not only affects the quantity but also the quality of foraminifera shells, as pH and temperature have different impacts on growth parameters. It is predicted that under the IPCC RCP8.5 scenario, both ocean acidification and warming will significantly impact reef foraminiferal carbonate production.
SCIENTIFIC REPORTS
(2021)
Article
Geochemistry & Geophysics
Wenshuai Li, Xiao-Ming Liu, Kun Wang, Yongfeng Hu, Atsushi Suzuki, Toshihiro Yoshimura
Summary: Potassium participates in coral biological activities and its isotope fractionation is important for interpreting coral records. This study evaluates the distribution and variation of potassium isotopes in the skeleton of corals and identifies the influence of biotic and abiotic controls on potassium partitioning and isotope fractionation. The findings highlight the role of physiological modulation in the phase distribution of potassium in coral skeletons and its isotopic variation.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Multidisciplinary Sciences
Yoshikazu Ohno, Akira Iguchi, Mariko Ijima, Ko Yasumoto, Atsushi Suzuki
Summary: An explosive volcanic eruption in the Ogasawara Islands caused a significant amount of floating pumice to reach the coast of Okinawa Island approximately two months later. This has resulted in early evidence of ecosystem changes in coastal beaches, estuaries, mangrove forests, and coral reefs. The impact of this massive pumice drift is not only disrupting fishing activities and ship traffic but also potentially leading to short and long-term changes in coastal ecosystems. The observed phenomena on Okinawa Island may serve as a preview of the impacts on other islands where pumice has subsequently washed ashore.
SCIENTIFIC REPORTS
(2022)
Article
Instruments & Instrumentation
Yuning Zeng, Yusuke Yokoyama, Shoko Hirabayashi, Yosuke Miyairi, Atsushi Suzuki, Takahiro Aze, Yuta Kawakubo
Summary: A new method combining coral growth band counting and Sr/Ca measurement using ICP-AES was proposed to establish a high-resolution age model. The study demonstrated the feasibility of using Sr/Ca for age modeling in coral and the ability of ICP-AES to provide higher-resolution data.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2022)
Article
Multidisciplinary Sciences
Tanya Singh, Kazuhiko Sakai, Jun Ishida-Castaneda, Akira Iguchi
Summary: Mass bleaching and mortality of reef corals due to heat stress caused by global warming have increased globally since the late 20th century. Monitoring the growth, survival, and bleaching status of Acropora corals in Okinawa, Japan, revealed that although the level of heat stress was higher in 2017 than in 2016, the same colonies exhibited less bleaching and mortality in 2017. The study suggests that genetic or epigenetic changes in coral hosts and/or algal symbionts, or the shifting or switching of non-endosymbiotic microbes, may have improved coral holobiont heat tolerance.
Article
Paleontology
Shunichi Kinoshita, Azumi Kuroyanagi, Hodaka Kawahata, Kazuhiko Fujita, Toyoho Ishimura, Atsushi Suzuki, Harumasa Kano, Yoshimi Kubota, Hiroshi Nishi
Summary: Recent increases in CO2 concentrations emitted by human activities have resulted in ocean warming and acidification, causing significant environmental changes. This has led to distressing consequences such as bleaching and death of symbiotic calcifying organisms in coral reef regions. Among these organisms, large benthic foraminifers (LBF) have gained attention due to the impact of thermal stress on their growth and ecological functions. However, the influence of indicators such as shell volume, density, and size on the calcification rate is unclear due to the complex nature of their shell structure. This study used Micro X-ray computed tomography (MicroCT) to investigate these parameters in the hyaline LBF Calcarina gaudichaudii, revealing insights into their response to temperature stress and shell density maintenance.
MARINE MICROPALEONTOLOGY
(2023)
Article
Zoology
Hiroki Kise, Miyuki Nishijima, Akira Iguchi, Junpei Minatoya, Hiroyuki Yokooka, Yuji Ise, Atsushi Suzuki
Summary: A new genus and species of Hexactinellida-associated zoantharian, Parachurabana shinseimaruae Kise, gen. nov. et sp. nov., has been discovered in Japanese waters. It is characterized by its host hexactinellid sponge, flat polyps, unique muscle structure, and distinct genetic variations. This species is the third genus in the Parazoanthidae family associated with Hexasterophora sponges. Though currently found only in Japanese waters, similar unidentified zoantharians have been reported in Australian waters, suggesting a potentially widespread distribution across the Pacific.
Article
Environmental Sciences
Naoki Saito, Travis W. Washburn, Shinichiro Yano, Atsushi Suzuki
Summary: Using object detection with deep learning, we successfully constructed a model to detect suspended particle variations in the deep sea. This model accurately detected particles in images and measured changes in suspended particle concentrations. This method provides a new option for studying deep-sea environmental changes, with the advantages of being cost-effective, quick, and intuitive.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Hiroki Kise, Akira Iguchi, Naoki Saito, Yuki Yoshioka, Koji Uda, Tomohiko Suzuki, Atsushi J. Nagano, Atsushi Suzuki, Nozomu Iwasaki
Summary: The genetic population structure of Corallium japonicum in the Northwest Pacific was examined using RAD-seq. Gene flow was found to be widespread, but larval dispersal simulations revealed limited gene flow between certain populations. The findings of this study provide valuable information for the effective management of C. japonicum.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Masatoshi Yamada, Atsushi Suzuki, Nozomu Iwasaki
Summary: Lead-210 concentrations were used to estimate the skeletal growth rates of four species of precious corals and a bamboo coral. The radial and linear growth rates of the colonies were measured, providing valuable information for population studies of these coral species.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Geochemistry & Geophysics
Ai Genda, Minoru Ikehara, Atsushi Suzuki, Wahyoe S. Hantoro, Mayuri Inoue
Summary: The Indonesian Throughflow (ITF) is important for heat flux and water budget between the Pacific and Indian oceans, affecting Asian monsoon and climate change. Observations are inadequate, so coral analysis was conducted to reconstruct sea-surface temperature (SST) and salinity (SSS). Abrupt warming and saline conditions were observed in the mid-1950s, with changed relationships between SST and climate variability in Pacific and Indian oceans.
GEOCHEMICAL JOURNAL
(2022)
Article
Environmental Sciences
Hiroto Kajita, Ayumi Maeda, Masayuki Utsunomiya, Toshihiro Yoshimura, Naohiko Ohkouchi, Atsushi Suzuki, Hodaka Kawahata
Summary: Using long-chain alkenones and n-alkanes to reconstruct past environments is common, but applying this technique to exposed sedimentary rock sequences can be challenging due to potential alterations. A study in Japan's Kazusa Group found that the biomarkers preserved there could provide a detailed record of Pleistocene paleoenvironments, specifically reflecting changes in sea surface temperature and terrestrial climate. This suggests that the biomarker measurements in the Kazusa Group could help reconstruct ocean and atmospheric changes throughout the Pleistocene.
COMMUNICATIONS EARTH & ENVIRONMENT
(2021)
Article
Fisheries
Yutaka Okumura, Hiromi Matsuoka, Hisayuki Arakawa, Fuyuki Tokanai, Atsushi Suzuki, Toshiaki Irizuki, Hiroto Kajita, Motoyuki Hara
Summary: Two sediment cores were collected from Nagatsura-Ura Lagoon, which was affected by the 2011 Tohoku-oki tsunami. Traces of the 2011 tsunami and earlier tsunamis were found in both the central and inner parts of the lagoon. The microbial composition in the lagoon showed little change due to limited seawater exchange through the closed lagoon mouth.
