Article
Green & Sustainable Science & Technology
Y. Zhou, C. Xue, L. Gan, G. Owens, Z. Chen
Summary: In this study, the antibacterial properties of bioreduced graphene oxide (B-rGO) were compared to that of commercial reduced graphene oxide (C-rGO). B-rGO demonstrated good antibacterial activity as confirmed by Scanning Electron Microscopy (SEM). Fourier transform infrared spectroscopy (FTIR) analysis confirmed the presence of numerous oxygen-containing functional groups on the surface of B-rGO. Microcalorimetry and flow cytometry analysis showed that the antibacterial activity of B-rGO was inferior to that of C-rGO.
MATERIALS TODAY SUSTAINABILITY
(2023)
Article
Environmental Sciences
Eunhoo Jeong, Seokho Jung, Hyun-Sang Shin
Summary: The use of surface functionalization and related applications to 2D materials as innovative solutions to environmental pollution has gained considerable attention among researchers. Fluorinated graphene has derivative-based synergistic components with high thermal and chemical stability due to its structure and bonding. Fluorine-functionalized reduced graphene oxide (rFGO-TiO2) demonstrated enhanced hydrophilicity and wettability, highly efficient photocatalytic disinfection, and an algicidal effect.
ENVIRONMENTAL POLLUTION
(2023)
Article
Chemistry, Multidisciplinary
Kannan Badri Narayanan, So Yeon Won, K. Narayanan Rajnish, Sung Soo Han
Summary: The study demonstrated the synthesis of reduced graphene oxide using Aspergillus sp. filtrate and its characterization. The Aspergillus sp. filtrate-RGO showed significant antibacterial activity against pathogenic bacteria. This fungal filtrate-mediated RGO synthesis is a promising antibacterial carbon nanomaterial for biomedical and nanotechnological applications.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Pharmacology & Pharmacy
Gioacchino Schifino, Claudio Gasparini, Simone Drudi, Marta Giannelli, Giovanna Sotgiu, Tamara Posati, Roberto Zamboni, Emanuele Treossi, Emanuele Maccaferri, Loris Giorgini, Raffaello Mazzarro, Vittorio Morandi, Vincenzo Palermo, Monica Bertoldo, Annalisa Aluigi
Summary: In this study, keratin/poly(lactic acid) blend nanofibers with different loadings of graphene-oxide were prepared and tested as drug delivery systems. The addition of graphene-oxide improved the performance of the nanofibers and slowed down the drug release.
INTERNATIONAL JOURNAL OF PHARMACEUTICS
(2022)
Article
Chemistry, Multidisciplinary
Marcos Valenzuela-Ortega, Jack T. Suitor, Mirren F. M. White, Trevor Hinchcliffe, Stephen Wallace
Summary: In this study, the researchers developed a new method to convert PET plastic waste into adipic acid using genetic engineering. By optimizing gene expression and enzyme activity, as well as immobilizing cells, they achieved efficient conversion. This research has the potential to reduce reliance on fossil resources and promote the reuse of waste materials.
ACS CENTRAL SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Alvin Lim Teik Zheng, Hisham N. Farrag, Sarah Sabidi, Tamaki Kato, Toshinari Maeda, Yoshito Andou
Summary: The study found that cyclic peptides immobilized on reduced graphene oxide exhibited selective antibacterial effects, with tyrosine and histidine-based peptides showing higher antibacterial activity. The enhanced antibacterial potency can be attributed to the synergistic effect between the antimicrobial peptides and graphene oxide.
Article
Chemistry, Analytical
Manman Du, Jinbiao Ma, Zhiwei Zhang, Guangzu Wu, Jianguo Wu, Hao Wang, Xinwu Xie, Can Wang
Summary: This study developed a rGO-FET biosensor for the rapid and sensitive detection of pathogenic microorganisms. The biosensor demonstrated good specificity, a wide linear range, and the ability to directly detect real samples without pretreatment.
ANALYTICA CHIMICA ACTA
(2023)
Article
Biochemical Research Methods
Mark T. Kozlowski, Bradley R. Silverman, Christopher P. Johnstone, David A. Tirrell
Summary: The study demonstrates the potential applications of engineered microbial communities in environmental remediation, microbiome engineering, and synthesis of fine chemicals through controlling the structures of bacterial aggregates. Additionally, methods such as activating quorum-sensing circuit and tuning aggregate size by regulating the amount of surface proteins on cells have been explored.
ACS SYNTHETIC BIOLOGY
(2021)
Article
Multidisciplinary Sciences
Yancong Zhang, Amrisha Bhosle, Sena Bae, Lauren J. McIver, Gleb Pishchany, Emma K. Accorsi, Kelsey N. Thompson, Cesar Arze, Ya Wang, Ayshwarya Subramanian, Sean M. Kearney, April Pawluk, Damian R. Plichta, Ali Rahnavard, Afrah Shafquat, Ramnik J. Xavier, Hera Vlamakis, Wendy S. Garrett, Andy Krueger, Curtis Huttenhower, Eric A. Franzosa
Summary: This article investigates the role of microbial communities and their associated bioactive compounds in inflammatory bowel diseases (IBD). It systematically identifies potentially bioactive protein families involved in gut inflammation during IBD and validates their bioactivity using a combination of metagenomics, metatranscriptomics, and metaproteomics. The results provide candidate microbial proteins that interact with the host immune system in IBD, expanding our understanding of potentially bioactive gene products in chronic diseases.
Article
Multidisciplinary Sciences
Sierra M. Brooks, Celeste Marsan, Kevin B. Reed, Shuo-Fu Yuan, Dustin-Dat Nguyen, Adit Trivedi, Gokce Altin-Yavuzarslan, Nathan Ballinger, Alshakim Nelson, Hal S. Alper
Summary: Researchers have developed a tripartite microbial coculture system for the de novo production of plant-derived phenylpropanoids. The system has shown improved stability and flexibility, and has the potential to be used for the production of various industrial products.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Qui Quach, Tarek M. Abdel-Fattah
Summary: In this study, an effective method of enhancing the antibacterial property of graphene oxide was developed by growing nanosilica on its surface. Functionalized silver nanoparticles were also added to create a composite material with antimicrobial effects.
Article
Chemistry, Multidisciplinary
Wenxian Guo, Meiqiong Chen, Xiaoqing Liu, Faliang Cheng, Xihong Lu
Summary: By decorating the commercial carbon paper anode with an advanced Mo2C/reduced graphene oxide (Mo2C/RGO) composite, a simple and cost-effective strategy was developed to effectively improve the electron transfer efficiency and power output of microbial fuel cells. The composite also facilitated the formation of a 3D hybrid biofilm and improved the bacteria-electrode interaction, resulting in a significantly enhanced coulombic efficiency.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Physics, Fluids & Plasmas
Pavol Kalinay
Summary: This study investigates a Janus particle diffusing on a line, being driven forward or backward by its stochastic orientation and influenced by a position-dependent potential U(x). The effective generalized Fick-Jacobs equation is proposed through a mapping scheme to describe the motion of the particle in the spatial coordinate x, with orientation understood as the transverse coordinate. The selfpropulsion leads to an additional effective potential -gamma (x) in the reduced picture, aiding in understanding the peculiarities of the system. Additional corrections to the potential cause confined particles to redistribute in quasiequilibrium, leading to piling at the walls, and in periodic asymmetric channels, causing a growing contribution responsible for driving the ratchet effect.
Review
Biochemical Research Methods
Shuobo Shi, Nailing Qi, Jens Nielsen
Summary: Microorganisms have become an attractive option for producing various chemicals from renewable resources. The CRISPR-Cas system has emerged as a powerful tool for manipulating nucleic acids and generating cell factories with desired properties. This review highlights recent advances in using CRISPR-Cas systems to develop microbial cell factories for chemical production, including identifying better biocatalysts, fine-tuning metabolic flux, utilizing inexpensive substrates, and improving metabolic robustness. The potential applications and further development of CRISPR-Cas systems for strain improvement are also discussed.
CURRENT OPINION IN BIOTECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Michael G. Gomez, Samantha T. Muchongwe, Charles M. R. Graddy
Summary: This study proposes a soil improvement method using enriched fermentative microorganisms to control the gelation process of colloidal silica grouts. Results demonstrate that fermentative microorganisms can successfully mediate gel formation in suspensions, increasing the reliability and control of colloidal silica grouting.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Textiles
C. G. Flores-Hernandez, C. Velasco-Santos, A. L. Hernandez-Zea, O. Gomez-Guzman, J. M. Yanez-Limon, J. L. Rivera-Armenta, A. L. Martinez-Hernandez
Summary: Polymer composites of polylactic acid (PLA) reinforced with chicken feather rachis were successfully developed by extrusion and additive manufacturing. The addition of rachis significantly improved the thermomechanical properties of the composites, and the fracture surface of the 3D printed composites showed distinct characteristics depending on the type and concentration of reinforcement used. Furthermore, the thermal conductivity of the composites was altered with the addition of keratin.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Chemistry, Physical
Angie Quevedo, Juan Bussi, Nestor Tancredi, Rosalba Fuentes-Ramirez, Rosario Galindo, Juan L. Fajardo-Diaz, Florentino Lopez-Urias, Emilio Munoz-Sandoval
Summary: The combination of different nanomaterials, such as La2Zr2O7 (LZO) and NiO, can be used as a catalyst for carbon nanotube fabrication. In this study, N-doped multiwalled carbon nanotubes were successfully produced using Ni/LZO material, exhibiting bamboo shape morphology and ferromagnetic behavior.
Article
Materials Science, Textiles
A. Almendarez-Camarillo, C. G. Flores-Hernandez, V. Balcazar-Enriquez, M. S. Aguirre-Garcia, Ana L. Martinez-Hernandez, C. Velasco-Santos
Summary: This study verified the feasibility of using waste pineapple leaves to extract cellulose nanofibers, which were then used as reinforcement materials in a chitosan-starch matrix. Various experimental techniques were used to confirm the morphology and chemical structure of the fibers were not damaged, and it was observed that the use of nanofiber reinforcement did not affect the thermal stability and mechanical properties of the material.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Chemistry, Physical
Mirle Pena Ortega, Luz M. Lopez-Marin, Blanca Millan-Chiu, Patricia Manzano-Gayosso, Laura Susana Acosta-Torres, Rene Garcia-Contreras, Ravichandran Manisekaran
Summary: This study successfully synthesized stable cationic silver nanoparticles using a facile aqueous phase process, which exhibited antimicrobial activity against Candida species, especially in inhibiting biofilm formation.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Instruments & Instrumentation
Juan A. de la Rosa Gatica, Ana L. Martinez Hernandez, Nimrod Vazquez-Nava, Perla E. Garcia-Casillas, Carlos Velasco-Santos
Summary: A near-field electrospinning configuration has been developed for fabricating 3D structures by layer-by-layer stacking. The configuration consists of a collinear arrangement between the spinner and the sharp electrode, allowing movement in the XY directions and adjustment of parameters such as displacement speed and work distance to modify the nanofiber features. Experimental results demonstrate the significant impact of parameter control on fiber deposition.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Review
Pharmacology & Pharmacy
Ravichandran Manisekaran, Rene Garcia-Contreras, Aruna-Devi Rasu Chettiar, Paloma Serrano-Diaz, Christian Andrea Lopez-Ayuso, Ma Concepcion Arenas-Arrocena, Genoveva Hernandez-Padron, Luz M. Lopez-Marin, Laura Susana Acosta-Torres
Summary: Researchers in cancer nanomedicine are exploring a revolutionary multifaceted carrier for treatment and diagnosis, resulting in the proposal of various drug cargos or magic bullets in this past decade. However, challenges prevent many nano-based complexes from entering the final stages and being accessible to patients. The use of 2D nanosheets, such as graphene, has generated extensive interest for biomedical applications due to their unique properties.
Article
Polymer Science
Lourdes Ramos-Galicia, Eduardo E. Perez-Ramirez, Carlos Velasco-Santos, Liliana Licea-Jimenez, Ana L. Martinez-Hernandez, Sergio A. Perez-Garcia, Alejandro Lopez-Ortiz
Summary: A hybrid material (G-CNT) based on graphene nanoplatelets and carbon nanotubes is obtained through a one-step method of exfoliating graphite. This hybrid material improves the performance of nanocomposites in epoxy resin and offers a simple and viable alternative method for obtaining hybrid systems.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Manufacturing
D. C. Jimenez-Ordonez, A. L. Martinez-Hernandez, G. Martinez-Barrera, C. Velasco-Santos
Summary: 3D printing is a versatile option for obtaining complex structures and has been applied in various science and technology fields. This research focuses on the design and manufacturing of 3D printed filters for a photocatalytic system. Different structures were designed, manufactured, and evaluated to select the most suitable filters for specific parameters. Simulation and modeling helped identify the filters that meet the requirements for further testing and implementation.
MATERIALS AND MANUFACTURING PROCESSES
(2023)
Article
Chemistry, Multidisciplinary
Eduardo E. Perez-Ramirez, Lourdes Ramos-Galicia, Miguel de la Luz-Asuncion, Veronica Saucedo-Rivalcoba, Ana L. Martinez-Hernandez, Efrain Rubio-Rosas, Carlos Velasco-Santos
Summary: A novel physical process of steam explosion and ultrasonic exfoliation is proposed to obtain graphene nanoplatelets. This process is easy, green, and scalable, resulting in graphene nanoplatelets with high structural quality.
Article
Engineering, Biomedical
Juan Antonio Paz-Gonzalez, Carlos Velasco-Santos, Luis Jesus Villarreal-Gomez, Enrique Alcudia-Zacarias, Amelia Olivas-Sarabia, Marcos Alan Cota-Leal, Lucia Z. Flores-Lopez, Yadira Gochi-Ponce
Summary: In recent years, there has been an increase in surgical procedures for hip prostheses. However, these implants often cause bone loss or aseptic loosening due to their high stiffness. This research proposes a new composite material, PLA/CFRC, which consists of 3D-printing polylactic acid layers and carbon fiber laminates. The study demonstrates that this composite has promising mechanical properties and can be a suitable base material for hip femoral stem prostheses manufacturing.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2023)
Article
Chemistry, Physical
J. Zamora, T. Bautista, N. S. Portillo-Velez, A. Reyes-Montero, H. Pfeiffer, F. Sanchez-Ochoa, H. A. Lara-Garcia
Summary: Experimental and DFT studies were conducted on the structural, magnetic, and optical properties of RFeO3 perovskites. The perovskites exhibited an orthorhombic crystal structure and weak ferromagnetic behavior. They were confirmed to be semiconductors with a bandgap of approximately 2.1 eV.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xianxiang Lv, Jing Jin, Weiguang Yang
Summary: By depositing TiN and TiO2 surface layers on AlSi films, the electrochemical performance of silicon-based anodes can be significantly improved, suppressing volume expansion and promoting the formation of a stable SEI layer.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Sharafat Ali, Haider Ali, Syedul Hasnain Bakhtiar, Sajjad Ali, Muhammad Zahid, Ahmed Ismail, Pir Muhammad Ismail, Amir Zada, Imran Khan, Huahai Shen, Rizwan Ullah, Habib Khan, Mohamed Bououdina, Xiaoqiang Wu, Fazal Raziq, Liang Qiao
Summary: The construction and optimization of redox-heterojunctions using a bifunctional phosphate as an electron-bridge demonstrated significant improvements in photo catalytic activity, including enhanced dispersion, reduced interfacial migration resistance, and increased abundance of active-sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ren-Ni Luan, Na Xu, Chao-Ran Li, Zhi-Jie Zhang, Yu-Sheng Zhang, Jun Nan, Shu-Tao Wang, Yong-Ming Chai, Bin Dong
Summary: Extensive research has revealed that oxygen evolution reaction (OER) in alkaline conditions involves dynamic surface restructuring. The development and design of sulfide/oxide pre-catalysts can reasonably adjust the composition and structure after surface reconstruction, which is crucial for OER. This study utilized a simple two-step hydrothermal method to achieve in situ S leaching and doping, inducing the composition change and structure reconstruction of CoFe oxides. The transformed FeOOH and CoOOH exhibited excellent OER activity and could be easily mass-produced using low-cost iron based materials and simple methods.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jun'an Lai, Daofu Wu, Peng He, Kang An, Yijia Wang, Peng Feng, WeiWei Chen, Zixian Wang, Linfeng Guo, Xiaosheng Tang
Summary: Zero-dimensional organic-inorganic metal halides (OMHs) are gaining attention in the fabrication of light-emitting diodes due to their broad emission band and high photoluminescence quantum yield. This work synthesized a zero-dimensional organic tetraphenylphosphonium bismuth chloride (TBC) that showed efficient blue light emission, with the emission mechanism attributed to the transition of Bi3+ ions. White light-emitting diodes (WLEDs) were fabricated using TBC, along with green-emitting and red-emitting single crystals, achieving single-component white emissions. These findings demonstrate the different emission mechanism of ns2 ions-based OMHs and highlight the potential of bismuth-based OMHs in WLEDs applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xuewei Liang, Yunhai Su, Taisen Yang, Zhiyong Dai, Yingdi Wang, Xingping Yong
Summary: The revolutionary design concept of high-entropy alloys has brought new opportunities and challenges to the development of advanced metal materials. In this work, AlCrCuFe2NiTix high-entropy flux cored wires were prepared by combining the design idea of a high-entropy alloy with the characteristics of flux cored wire. AlCr-CuFe2NiTix high-entropy surfacing alloys were prepared using gas metal arc welding technology. The wear properties of the alloys were analyzed, and the phase composition, microstructure, strengthening mechanism, and wear mechanism were discussed. The results show that the alloys exhibit a dendritic microstructure with BCC/B2 + FCC phases. Increasing Ti content leads to the precipitation of Laves phase. The alloys show improved microhardness and wear resistance due to the precipitation of coherent B2 and Laves phases. However, excessive Ti addition results in the increase of Laves phase and reduced wear resistance of the alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
M. Vadivel, M. Senthil Pandian, P. Ramasamy, Qiang Jing, Bo Liu
Summary: This work presents the enhanced photocatalytic and electrochemical performance of g-C3N4 assisted PAA on CoFe2O4 ternary nanocomposites. The incorporation of PAA and g-C3N4 improves the separation efficiency of photogenerated charge carriers, resulting in superior photocatalytic degradation and high specific capacitance values.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Vibhu T. Sivanandan, Ramany Revathy, Arun S. Prasad
Summary: In this study, pure and doped cobalt ferrite nanoparticles were prepared using the sol-gel auto-combustion method with the aid of lemon juice as eco-fuel. The crystal structure, lattice parameter, crystallite size, microstrain, optical parameters, and room temperature magnetic properties of the samples were analyzed. The effect of doping on the magnetic properties was also investigated.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qing Guo, Bowen Zhang, Benzhe Sun, Yang Qi
Summary: This study prepared ZnO films with various nonpolar preferred orientations using conventional chemical bath deposition method and characterized their growth process and mechanism. It was found that the type and concentration of nitrate could control the preferred orientation and surface roughness of ZnO films. Additionally, ZnO films with different preferred orientations exhibited different optical properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Chong Zhang, Yan Liu, Zhaoyan Wang, Hang Yang
Summary: In this study, six bimetallic FeCo particles were synthesized via the hydrothermal method at different Fe:Co ratios. The Fe:Co ratio not only modulates the composition of the particles but also influences their structure and magnetic properties. The FeCo alloys showed a transformation from an Fe-based structure to a Co-based structure with increasing Co content. The Fe:Co ratio of 1:1 and 3:1 resulted in particles with the highest and lowest saturation magnetization, respectively.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Jianning Zhang, Jing Li, Yiren Wang, Xiaodong Mao, Yong Jiang
Summary: We conducted a study on the formation of ultra-fine Y-Ti-Ta-O nano-oxides in Ta+B micro-alloyed 13CrWTi-ODS alloys using electron microscopy and first-principles calculations. The Y-Ti-Ta-O nano-oxides were found to be mainly Y2(Ti,Ta)2O7, with an average size of 7 nm and a number density of 6.8 x 1023 m-3. Excess boron was found to enhance the adhesion of some low-sigma grain boundaries but weaken the Fe/Y2Ti2O7 interface, while excess tantalum enhanced the Fe/Y2Ti2O7 interface but caused serious degradation of grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Yirong Fang, Pei Cheng, Hang Yuan, Hao Zhao, Lishu Zhang
Summary: A new composite system of nitrogen-doped reduced graphene oxide and black phosphorus quantum dots has been developed for tumor therapy, showing improved electrochemical properties and stability. The system generates hydrogen peroxide and hydroxyl radical to effectively kill tumor cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Xiufang Qin, Yuanli Ma, Hui Zhang, Ting Zhang, Fang Wang, Xiaohong Xu
Summary: The structure and magnetism of cobalt ferrites after Mn2+-Tb3+ co-doping were studied. Co-doped samples exhibited cubic spinel structure and spherical shape of ferrite nanoparticles. The redistribution of Co2+ and Fe3+ ions between octahedral and tetrahedral sites was observed due to Mn2+-Tb3+ co-doping. The coercivity and magnetization saturation of co-doped samples were significantly improved, leading to a maximum energy product that is 190% higher than that of the un-doped sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Ho Yeon Lee, Wonjong Yu, Yoon Ho Lee
Summary: Recently, there has been an increasing interest in developing ultra-fine nanostructured electrodes with extensive reaction areas to enhance the performance and low-temperature operation of solid oxide fuel cells. The use of a refined approach involving co-sputtering metal alloys and oxide targets has demonstrated the feasibility of nano-columnar structures in perovskite-based electrodes, expanding the temperature range of thin film electrodes. This study systematically examines the effects of chamber pressure control in the co-sputtering process and identifies the intricate relationship between sputtering pressure and film structure. By fine-tuning the columnar growth in the electrode, significant improvements in performance and thermo-mechanical properties were achieved, resulting in high-performance all-sputtered solid oxide fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Chemistry, Physical
Qianyun Bai, Xiaoxiao Yan, Da Liu, Kang Xiang, Xin Tu, Yanhui Guo, Renbing Wu
Summary: This study proposes a simple method to develop a non-precious transition metal-based electrocatalyst with high catalytic activity and robustness for the hydrogen evolution reaction. The as-synthesized electrode exhibits a low overpotential and high current density, indicating its potential in energy conversion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
