Article
Engineering, Chemical
Wei Zhang, Shuili Yu, Ping Li, Xingli Ji, Rongsheng Ning, Pan Li
Summary: In this study, novel Janus membranes with multilevel hierarchical structures were developed to prevent membrane pore wetting and enhance desalination performance. These membranes demonstrated outstanding antiwetting properties and salt rejection performances. The results showed that the Janus membranes exhibited stable flux and high desalination rate during vacuum membrane distillation tests.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Shui Yu, Zhicheng Ye, Zhiqing Liu, Wenbo Sheng, Rui Li, Zeyu Zhao, Yazhuo Shang, Meng Li, Yongsheng Li, Xin Jia
Summary: Mussel-inspired nanocapsules have great potential in catalysis, separation, and biomedicine. Controlled synthesis of these nanocapsules, with tunable particle size, designable shell thickness, and uniform morphology, is a challenge. In this study, a unique self-assembly process mediated by copolymerization of dopamine and N-nonanoyldopamine was proposed and successfully applied to the preparation of P(NND-DA) capsules with tunable shell structure. The formation mechanism of the capsules was confirmed through experimental technologies and theoretical calculations. This strategy provides a new platform for the preparation of mussel-inspired nanoparticles with diverse morphologies for various applications.
CHEMISTRY OF MATERIALS
(2022)
Article
Engineering, Manufacturing
Meng Li, Hai-Lu Huang, Jia-Min Wu, Ya-Ru Wu, Zhang-Ao Shi, Jing-Xian Zhang, Yu-Sheng Shi
Summary: In this study, Si3N4 ceramics were successfully fabricated by DLP technology using Si3N4 powder coated with Al2O3-Y2O3 sintering additives. The research systematically studied the effects of the coating amount of sintering additives on the properties of the ceramics. The results provide an experimental basis for DLP forming Si3N4 and other non-oxide ceramics.
ADDITIVE MANUFACTURING
(2022)
Article
Biochemical Research Methods
Tyler S. Lott, Ariel A. Petruk, Nicolette A. Shaw, Natalie Hamada, Carmen M. Andrei, Yibo Liu, Juewen Liu, German Sciaini
Summary: Liquid cell electron microscopy (LCEM) has suffered from reproducibility issues and limited imaging quality over a wide field of view. In this study, a shape-engineered nanofluidic cell architecture and an air-free drop-casting sample loading technique were introduced to overcome these challenges. The presented LCEM method enables high-resolution imaging without bulging membranes, providing lattice resolution and sufficient contrast for observing unstained liposomes in their near native environment.
Article
Chemistry, Multidisciplinary
Jingyao Gao, Qingwei Yan, Xue Tan, Le Lv, Jufeng Ying, Xiaoxuan Zhang, Minghui Yang, Shiyu Du, Qiuping Wei, Chen Xue, He Li, Jinhong Yu, Cheng-Te Lin, Wen Dai, Nan Jiang
Summary: In order to enhance heat dissipation, a strategy was demonstrated to reduce the thermal contact resistance between graphene paper and the mating surface. By decorating graphene paper with polydopamine EGaIn nanocapsules using a dip-coating process, the thermal contact resistance was decreased, resulting in a 26% improvement in cooling efficiency compared to the undecorated case.
Article
Chemistry, Multidisciplinary
Arnon Fluksman, Aritz Lafuent, Zhi Li, Jordi Sort, Silvia Lope-Piedrafita, Maria Jose Esplandiu, Josep Nogues, Alejandro G. Roca, Ofra Benn, Borja Sepulveda
Summary: In this study, metal iron based magnetoplasmonic drug-loaded nanocapsules (MAPSULES) were developed to enhance the efficacy of cancer nanotherapies locally. The MAPSULES combine powerful external magnetic concentration in the tumor and efficient photothermal actuation to boost the drug therapeutic action at ultralow drug concentrations. The results show that this approach has the potential to significantly amplify the therapeutic effects of drugs for different diseases.
Article
Biochemistry & Molecular Biology
Maoshuang Chen, Jianan ShangGuan, Junyi Jiang, Jingjing Jiang, Fengjuan Li, Qingqi Dong, Hongyan Diao, Xiangdong Liu
Summary: This study presents a simple method to prepare durable antibacterial cotton fabric without sacrificing wearing comfortability. The cotton fabric is oxidized to obtain dialdehyde groups and then treated with PM molecules to establish a PM coating on the fiber surfaces. The resulting fabrics show durably antibacterial activity with high bacterial reduction rates against E. coli and S. aureus, and they also exhibit remarkable durabilities after multiple washing cycles and rubbing times. The fabrics are proven to be safe for human skin through cytotoxicity tests. This research demonstrates a versatile strategy to impart effective and durable antibacterial function to cotton textiles, showing great potential for practical applications in functional textile fields.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Multidisciplinary
Mengyuan Zhou, Haiyan Chen, Yuteng Zeng, Ziyan Lv, Xiaoxiao Hu, Yang Tong, Pan Wang, Mei Zhao, Rui Mu, Ju Yu, Yanming Chen, Lin Wei, Jiang Gu, Qing Lan, Xuechu Zhen, Liang Han
Summary: Receptor-mediated vesicular transport is a powerful brain-targeting delivery technology. However, commonly used BBB receptors can cause drug distribution in normal brain tissues. Researchers have found that GRP94 protein is upregulated and relocated in both BBB endothelial cells and brain metastatic breast cancer cells (BMBCCs). Inspired by this, nanocapsules coated with avirulent DH5 alpha outer membrane protein are developed to cross the BBB and target BMBCCs by recognizing GRP94. This platform shows potential in maximizing therapeutic effects on GRP94-positive brain diseases.
Review
Chemistry, Physical
Misun Kang, Dooho Choi, Jae Young Bae, Myunghwan Byun
Summary: This review highlights recent advances in micro-to-nanometer scale patterning of perovskite inks, focusing on the importance of controlled self-assemblies and unconventional approaches based on irreversible solution evaporation. It also introduces the progress in the potential applications of the patterned perovskite inks.
Article
Materials Science, Multidisciplinary
Jose D. Avila, Amit Bandyopadhyay
Summary: The use of Ti64 alloy reinforced with ZTA can effectively address the galvanic-induced corrosion failure issue when coupling CoCr alloy femoral heads with titanium hip stems. After parameter optimization, the Ti64 + 5wt.%ZTA (5ZTA) composition showed a more reliable interface, reduced porosity, and increased hardness.
Article
Materials Science, Multidisciplinary
Julia Radwan-Praglowska, Lukasz Janus, Ernest Szajna, Tomasz Galek, Aleksandra Sierakowska, Marek Piatkowski, Miroslaw Tupaj, Piotr Radomski, Michal Michalec, Dariusz Bogdal
Summary: Constant development in dentistry has created a demand for modern biomaterials with advanced properties. Although commonly used titanium-based implants have satisfactory durability, biocompatibility, and bioinertness, they do not meet all the requirements for novel medical devices. Magnesium biomaterials are considered as the latest generation of metallic medical devices due to their biocompatibility, bioactivity, and susceptibility to biodegradation, which are unachievable for titanium-derived implants. However, unmodified magnesium implants undergo uncontrolled biocorrosion and may not match with bone tissue formation. Therefore, there is a priority in developing magnesium-based biomaterials with controlled properties. Anodic modification is a promising technique to enhance the biological responses and applicability of metallic materials in biomedical areas. In this study, successful modification of magnesium implants was achieved through a high-voltage anodization process, resulting in the preparation of novel biomaterials with interesting properties and high potential applications in dentistry. The surface oxidation was confirmed by XRD and XRF analyses, and surface morphology was suitable for cell adhesion microstructure. In vitro incubation study showed that the biomaterials promoted apatite formation due to their highly porous morphology and locally increased pH, enhancing biomineralization. Biodegradation tests demonstrated increased resistance to hydrolysis in simulated body fluids due to surface passivation. Further investigation on biocorrosion revealed improved tolerance to human body conditions. Finally, cell culture study on L929 mouse fibroblasts confirmed superior biocompatibility of the newly developed implants, indicating their high potential in the field of dentistry.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Biochemistry & Molecular Biology
Gang Jin, Powei Gu, Ling Qin, Kangchun Li, Yuting Guan, Haifeng Su
Summary: The manganese-oxides-coated magnetic microcrystalline cellulose was prepared by coprecipitation and modified with KMnO4 solution for the removal of Pb(II) from wastewater. The adsorption mechanism mainly involved surface complexation, ion exchange, electrostatic interaction, and precipitation. The material exhibited high adsorption capacity, stability, and reusability.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Materials Science, Multidisciplinary
Xiaofang Ye, Hongkun Cai, Jian Su, Jingtao Yang, Jian Ni, Juan Li, Jianjun Zhang
Summary: A high-efficiency flexible perovskite solar cell was prepared using a low temperature solution process, achieving an efficiency of up to 16.16% by adjusting the concentration of the KCl modified layer. The hysteresis effect of the device was reduced, demonstrating improved carrier transport performance and reduced surface recombination of the perovskite.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Pharmacology & Pharmacy
Eunjoo Koh, Yong Taek Lee
Summary: This study prepared nanocapsules with excellent self-controlled antimicrobial activity at specific pH and humidity conditions. The nanocapsule substrate had a large surface area and outer ligand brush, leading to rapid antibacterial response. The controlled release of the antimicrobial drug was achieved by the repellent electrostatic force and swelling properties of the ligand brushes.
Article
Chemistry, Multidisciplinary
Kaidi Ding, Yue Wang, Shuaizhen Liu, Sen Wang, Jianguo Mi
Summary: The bacterial adhesion of medical indwelling devices can be improved by using hydrophilic and antibacterial modifications, with modified silicone rubber demonstrating good antibacterial performance and resistance to biofilm formation.
Article
Chemistry, Multidisciplinary
Tomohiro Murata, Kosuke Minami, Tomohiko Yamazaki, Tomomasa Sato, Hideomi Koinuma, Katsuhiko Ariga, Nobuyuki Matsuki
Summary: We have developed nanometer-flat DNA-featured solid thin films using DNA sourced from salmon sperm via laser molecular beam deposition (LMBD) under high-vacuum conditions. The LMBD-DNA thin films exhibited molecular flatness with an average surface roughness of 7.4 nm. Despite the observed fragmentation caused by the cleavage of phosphate bonds, Quartz Crystal Microbalance (QCM) sensors fabricated with LMBD-DNA thin films showed superior methanol detection capability compared to sensors fabricated with spin-coated DNA thin films, suggesting a high potential for sensor applications.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2023)
Article
Chemistry, Multidisciplinary
Tomohiro Shiraki, Rioe Saito, Hayato Saeki, Naoki Tanaka, Koji Harano, Tsuyohiko. Fujigaya
Summary: Chemical functionalization of boron nitride nanotubes (BNNTs) through reductive alkylation reaction introduces luminescent defects. Attachment of hexyl groups on the BNNT wall results in the formation of sp3 boron atom defects in the BN network, leading to defect photoluminescence in the UV-vis region. This chemistry-based defect doping technique offers an attractive tool for bandgap engineering of BNNTs.
Article
Engineering, Electrical & Electronic
Tanju Yildirim, Meng-Qun Feng, Thuc Anh Ngo, Kota Shiba, Kosuke Minami, Genki Yoshikawa
Summary: This study utilizes acoustic transduction with a quarter wavelength resonator, a speaker, and a microphone to detect and identify gas properties. Experimental data reveals resonance frequency curves and speed of sound for each gas, while time domain data allows for multi-dimensional data analysis. The device is capable of adequately identifying gases at concentrations of at least several thousand ppm.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Multidisciplinary
Kota Shiba, Chao Zhuang, Kosuke Minami, Gaku Imamura, Ryo Tamura, Sadaki Samitsu, Takumi Idei, Genki Yoshikawa, Luyi Sun, David A. Weitz
Summary: A simple device made of polydimethylsiloxane (PDMS) slab and a glass substrate can measure gas flow and analyze its characteristics based on color change. This device can also be used for flow-induced display of patterns.
Article
Chemistry, Analytical
Kosuke Minami, Hisami Kobayashi, Masaaki Matoba, Yuko Kamiya, Subrata Maji, Takahiro Nemoto, Masanori Tohno, Ryoh Nakakubo, Genki Yoshikawa
Summary: The measurement of volatile fatty acids (VFAs) is important in food and agriculture, but most methods require specific equipment, making on-site measurements difficult. This study demonstrates the measurement of VFAs in silage using nanomechanical sensors-Membrane-type Surface stress Sensors (MSS). By extracting features from the decay curves of the sensing response, VFAs can be efficiently measured with discrimination of the silage samples. This sensing system has great potential for practical applications including on-site measurements, as it does not require expensive equipment and sample pre-treatment.
Article
Chemistry, Multidisciplinary
Meijia Yang, Hiroki Hanayama, Long Fang, Matthew A. Addicoat, Yunyu Guo, Robert Graf, Koji Harano, Jun Kikkawa, Enquan Jin, Akimitsu Narita, Klaus Mu''llen
Summary: To overcome the photoluminescence quenching of COFs, a strategy involving interrupting intralayer conjugation and interlayer interactions using cyclohexane as the linker unit is proposed. By altering the building block structures, imine-bonded COFs with different topologies and porosities are obtained, showing enhanced emission with record-high photoluminescence quantum yields in the solid state. Furthermore, the resulting cyclohexane-linked COF exhibits excellent sensing performance for the trace recognition of various molecules.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Toru Ishikawa, Fumihiko Tanaka, Kosuke Kurushima, Akira Yasuhara, Ryusuke Sagawa, Tatsuya Fujita, Ryohei Yonesaki, Katsuhiko Iseki, Takayuki Nakamuro, Koji Harano, Eiichi Nakamura
Summary: Carbon fiber obtained by pyrolysis of polyacrylonitrile exhibits superior properties for various applications, such as aircraft manufacture and power turbine blades. The structure of polyacrylonitrile-derived carbon fiber consists of hierarchically piled up wavy graphene-like networks, which exhibit high tensile strength and resistance to fracture. Conversely, pitch-based carbon fiber, consisting of crystalline graphene networks, is brittle.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Analytical
Gaku Imamura, Kosuke Minami, Genki Yoshikawa
Summary: In this study, a repetitive direct comparison (rDC) method was proposed to highlight the difference in odors by alternately injecting the two target odors. The results showed that the rDC method achieved improved signal-to-noise ratios (S/N) compared to a typical measurement.
Article
Chemistry, Multidisciplinary
Naoki Kito, Shinjiro Takano, Shinya Masuda, Koji Harano, Tatsuya Tsukuda
Summary: A gold cluster with terpyridyl ligands was synthesized and its coordination behavior with different metal ions was investigated. The photoluminescence of the gold cluster was found to be affected differently by different metal ions, depending on their electronic structures. These findings are important for understanding the optical properties and applications of gold clusters.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2023)
Article
Chemistry, Multidisciplinary
Helen Hoelzel, Sol Lee, Konstantin Yu. Amsharov, Norbert Jux, Koji Harano, Eiichi Nakamura, Dominik Lungerich
Summary: The visualization of single-molecule reactions using high-resolution transmission electron microscopy provides important insights into chemical processes. This study demonstrates the synthetic use of the electron beam by inducing the formation of a doubly holed fullerene-porphyrin cage structure through in-depth time-resolved transmission electron microscopy studies. The findings suggest that secondary electrons in the irradiated area can initiate chemical reactions, highlighting the importance of understanding molecular radiation chemistry for designing advanced carbon nanostructures by electron-beam lithography.
Article
Engineering, Electrical & Electronic
Tanju Yildirim, Meng-Qun Feng, Kota Shiba, Kosuke Minami, Genki Yoshikawa
Summary: Measuring vapour-phase properties is crucial for integrating mobile olfactory devices into smart societies. This study introduces the concept of utilizing audible-range sound waves to extract vapour-phase properties, showing accurate determination of different molecules' characteristics. Audible-range acoustical techniques can easily integrate into sensor networks, providing new alternatives for portable devices in various applications.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Microscopy
Koji Harano, Takayuki Nakamuro, Eiichi Nakamura
Summary: The advent of single-molecule atomic-resolution time-resolved electron microscopy (SMART-EM) has allowed for the cinematographic recording of dynamic behaviors of organic and inorganic molecules and their assembly. However, the limited electron dose per frame of video images presents a major challenge in SMART-EM. Recent advances in direct electron counting cameras and denoising algorithms have enabled the tracking of stochastic molecular motions and chemical reactions with high temporal resolution and localization precision.
Article
Engineering, Electrical & Electronic
Kosuke Minami, Kota Shiba, Genki Yoshikawa
Summary: The conventional approach to solid material analysis focuses on their physical and chemical properties and requires specific analysis methods. A novel sensing approach based on pattern recognition using chemical sensor arrays has been developed, which can identify solid materials by analyzing their response patterns to known probe gases.
IEEE SENSORS LETTERS
(2023)
Article
Chemistry, Physical
Jun Kikkawa, Aoi Nii, Yoshiaki Sakaniwa, Naochika Kon, Marina Sakamaki, Touyou Ohashi, Nobuyasu Nita, Koji Harano, Koji Kimoto
Summary: This study investigated the effects of electron irradiation on a common epoxy resin using dose-dependent electron energy loss spectroscopy. The results revealed that the chemical structure of the epoxy resin changed as the electron dose increased. The epoxy resin was found to be highly sensitive to fast electrons at low temperature.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Agriculture, Dairy & Animal Science
Yuko Kamiya, Tomoyuki Suzuki, Kohei Oikawa, Hisami Kobayashi, Masanori Tohno, Ryoh Nakakubo, Masaaki Matoba, Takahiro Nemoto, Kosuke Minami, Gaku Imamura, Genki Yoshikawa
Summary: We explored the impact of corn silage fermentation quality on various aspects of lactating cows. The study found that cows fed high-quality corn silage had slightly higher dry matter intake compared to those fed low-quality corn silage. The dietary treatment did not significantly affect milk yield or the composition of milk. However, the low-quality corn silage group had higher levels of ruminal acetic acid and tended to produce more methane per dry matter intake. Additionally, cows in the low-quality group showed higher plasma cholesterol levels and increased activity of certain enzymes.
ANIMAL SCIENCE JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Dan He, Yawen Li, Fuwen Zhao, Yuze Lin
Summary: High trap density in organic solar cells leads to localized charge carriers and reduced carrier lifetime, limiting device efficiency. This feature article summarizes the recent advances of trap suppression by material design and device engineering.
CHEMICAL COMMUNICATIONS
(2024)
Review
Chemistry, Multidisciplinary
Olivier Monfort, Arshitha Madhusudhan, Martin Motola
Summary: This article presents the advantages of coupling photocatalysis and Fenton-based processes for environmental remediation and discusses their synergy. It critically examines the simultaneous triggering of these two processes and provides insights into research approaches. The study aims to enhance understanding of this complex process and highlight the potential integration of new catalysts in current wastewater treatment technology.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Manideepa Dhar, Chittaranjan Mishra, Avijit Das, Uttam Manna
Summary: An approach of 'polymerization of monomers in its aggregated form' has been introduced to tailor the water wettability of fibrous and porous substrates, achieving hydrophobicity to superhydrophobicity transition, as well as patterned wettability. This facile chemical method provides a durable coating with adjustable and patterned wettability for various potential applications.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Saswat Ranjan Bhoi, Chhanda Debnath, Shikha Gandhi
Summary: In this article, a novel catalytic reaction using Pd(0) and Bronsted acid is reported for the synthesis of biologically important imidazolidinone-fused N-heterocycles through redox-neutral intramolecular N-allylation of indoles and pyrroles with alkynes. This atom-economical method is applicable to a wide range of substrates and eliminates the need for leaving groups or oxidizing agents commonly used in traditional allylation reactions.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Longkun Chen, Mingshuai Zhang, Meichen Liu, Zhuoyuan Liu, Yuetong Qiu, Zhilai Zhang, Fuchao Yu, Jiuzhong Huang
Summary: In this study, an efficient Rh(III)-catalyzed selective mono- and dual-C-H bond functionalization/cyclization with iodonium ylide as the sole coupling partner was demonstrated. Fused benzodiazepine skeletons were obtained in excellent yields, providing an improved approach to dual C-H unsymmetrical functionalization.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Alice Kennett, Sven Epple, Gabriella van der Valk, Irene Georgiou, Evelyne Gout, Romain R. Vives, Angela J. Russell
Summary: This study presents the design and synthesis of sulfated disaccharide inhibitors based on IdoA(2S)-GlcNS(6S), which showed potent inhibition of Sulf-2. The results suggest that IdoA(2S)-GlcNS(6S) is the shortest fragment size required for effective inhibition of Sulfs, and a trisulfated disaccharide is identified as the minimal fragment size of heparan sulfate for effective endosulfatase inhibition.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Mauro Garbini, Andrea Brunetti, Riccardo Pedrazzani, Magda Monari, Massimo Marcaccio, Giulio Bertuzzi, Marco Bandini
Summary: The self-adaptability of galvanostatic electrolysis was found to be helpful in a multistage chemo- and diastereoselective electrochemically promoted cyclodimerization of chalcones. Through a series of reductive events, densely functionalized cyclopentanes with five contiguous stereocenters were obtained (25 examples, yields up to 95%, dr values up to >20:1). Further experimental and electrochemical investigations indicated the crucial role of dynamic kinetic resolution of the aldol intermediate in the reaction mechanism.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Dhananjay S. Nipate, Neha Meena, Prakash N. Swami, Krishnan Rangan, Anil Kumar
Summary: In this study, the synthesis of functionalized benzo[a]phenazines and indazolo[2,3-a]quinolines was achieved through Rh(III)-catalyzed oxidative annulation of 2-arylquinoxalines and 2-aryl-2H-indazoles with allyl alcohols. The method showed a wide substrate scope, excellent functional group tolerance, good to high yields of annulated products, and the capability for scaled-up synthesis. A tentative mechanism of the annulation reaction was proposed based on a preliminary mechanistic investigation.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Ruonan Zhang, Abudukadi Tudi, Xia Yang, Xuping Wang, Zhihua Yang, Shujuan Han, Shilie Pan
Summary: A new lead tellurium borate material with a unique fundamental building block [B4O10] was synthesized and found to exhibit high birefringence. The structure-property relationship was discussed using first-principles calculations.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Amresh Kumar Singh, Baishali Thakurta, Anupam Giri, Monalisa Pal
Summary: This study introduces three key concepts for the quick synthesis of large-scale high-quality 2D materials films and their utilization in device fabrication.
CHEMICAL COMMUNICATIONS
(2024)
Article
Chemistry, Multidisciplinary
Reina Hagiwara, Shun Nishimura, Kosuke Okeyoshi
Summary: A copolymer-conjugated nanocatalytic system has been developed to improve electron transfer and enhance photoinduced H2 generation.
CHEMICAL COMMUNICATIONS
(2024)
