Article
Chemistry, Multidisciplinary
Tianyi Liu, Miao Yan, Shan Zhou, Qirui Liang, Yanjun He, Xin Zhang, Hui Zeng, Jian Liu, Biao Kong
Summary: A multifunctional TiO2-SiO2-mesoporous carbon nanomotor with an asymmetric matchstick-like structure is synthesized via an interfacial superassembly strategy. The spatially anisotropic distribution of the photocatalytic TiO2 domain and photothermal carbon domain enables multichannel control of the motion, where the speed can be regulated by energy input and the directionality can be regulated by wavelength. This mechanism-switchable nanomotor is employed in wavelength-regulated targeted cargo delivery on a microfluidic chip.
Article
Biotechnology & Applied Microbiology
Xiaoling Yang, Shunan Zhao, Yong Deng, Weidong Xu, Zonghan Wang, Wenjun Wang, Ruiling Lv, Donghong Liu
Summary: This study evaluated the antibacterial activities of a-terpineol against common foodborne pathogenic bacteria and revealed the mechanisms of bacterial destruction, including changes in morphology, membrane function, and oxidative phosphorylation. The results showed that a-terpineol exhibited strong antibacterial effects on Escherichia coli O157:H7 and Staphylococcus aureus.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Yuxuan Yao, William L. Hase, Giovanni Granucci, Maurizio Persico
Summary: The research compares algorithms for sampling initial positions and momenta in a molecular system for classical trajectory simulations. The goal is to reproduce the phase space quantum distribution for a vibrational eigenstate, as in Wigner theory. Two approaches are introduced to address the issue of controlling total energy and energy partition among vibrational modes.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Review
Chemistry, Multidisciplinary
He Zhao, Yuhong Zheng, Yuepeng Cai, Tailin Xu, Renfeng Dong, Xueji Zhang
Summary: Synthetic micro/nanomotors (MNMs) are tiny devices that can move controllably in solutions through various energy transformations. They are a promising research field in nano-technology due to their small size, controllable motion, and diverse functions. Metals have played a significant role in this emerging field, and this review explores the relationship between metal properties and the propulsion of MNMs, emphasizing the importance of metals in MNM applications. The review also presents future prospects and opportunities for ideal metallic MNMs to further promote their development.
Review
Green & Sustainable Science & Technology
S. H. Chang
Summary: Since the mid-to-late-2000s, the emergence of micro/nanomotors (MNMs) has revolutionized nanotechnology research by providing distinctive autonomous motion and multifunctionality, particularly in the field of metal ion detection and removal from water. This review provides an overview of MNMs for metal ion detection and removal, covering their classification, materials, geometries, fabrication methods, propulsion mechanisms, and performance. The challenges and future prospects of using MNMs on a large scale for water quality monitoring and remediation are also discussed.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Biochemistry & Molecular Biology
Mengyan Shi, Yubin Bai, Yanhua Qiu, Xinxin Zhang, Zikang Zeng, Lingling Chen, Fusheng Cheng, Jiyu Zhang
Summary: Piceatannol (PIC) has an inhibitory effect on Staphylococcus aureus (S. aureus) and exhibits a synergistic effect when combined with ciprofloxacin (CIP). Further experiments showed that PIC enhances the sensitivity of S. aureus to CIP by dissipating the bacterial proton motive force (PMF), rather than increasing membrane permeability.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Yuzhu Ma, Kun Lan, Borui Xu, Li Xu, Linlin Duan, Mengli Liu, Liang Chen, Tiancong Zhao, Jun-Ye Zhang, Zirui Lv, Ahmed A. Elzatahry, Xiaomin Li, Dongyuan Zhao
Summary: A novel method for synthesizing streamlined mesoporous nanotadpoles has been reported in this study, which exhibit large inner cavities, high surface areas, and uniform mesopore sizes. By loading Fe3O4 into the nanoparticles, H2O2-driven mesoporous nanomotors with outstanding directionality and a diffusion coefficient of 8.15 μm(2) s(-1) can be designed.
Article
Biochemistry & Molecular Biology
Maria S. Muntyan, Mikhail B. Viryasov, Dimitry Y. Sorokin, Vladimir P. Skulachev
Summary: Thioalkalivibo versutus, as inhabitants of soda lakes, utilize Na+-translocating cytochrome-c oxidase and Na+-motive flagella in their energy cycle, allowing them to thrive in extreme conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Vanni Doffini, Haipei Liu, Zhaowei Liu, Michael A. Nash
Summary: This study reports the application of machine learning techniques to classify and analyze protein unfolding trajectories. It demonstrates the potential of machine learning to accelerate data analysis and generate new insights.
Article
Microbiology
Sayed Golam Mohiuddin, Aslan Massahi, Mehmet A. Orman
Summary: Persister cells are a small subpopulation of bacteria that can survive high concentrations of antibiotics. This study identified several genes, including guaA, guaB, and waaG, that play important roles in persister cell formation in Escherichia coli. Deletion of guaA and guaB disrupts the biosynthesis of a global persister molecule called ppGpp, while deletion of waaG affects the outer membrane structure and cellular proton motive force, leading to reduced persister formation in stationary phase.
MICROBIOLOGY SPECTRUM
(2022)
Article
Microbiology
Yingkun Wan, Edward Wai Chi Chan, Sheng Chen
Summary: Bacteria actively generate and maintain proton motive force (PMF) under adverse conditions in order to support a range of physiological functions and survive for a prolonged period of time. Maintaining a substantial level of PMF is directly linked to phenotypic antibiotic tolerance under nutrient starvation or other adverse conditions. These findings suggest that bacteria do not simply become physiologically dormant when they become antibiotic tolerant, but instead produce a wide range of proteins that prevent PMF dissipation and actively generate PMF, even during long-term starvation. The PMF maintenance mechanisms identified in this study are potential targets for the development of new strategies to control recurrent and chronic infections, particularly in individuals with weakened immune systems.
MICROBIOLOGY SPECTRUM
(2023)
Article
Pharmacology & Pharmacy
Yuqian Jia, Bingqing Yang, Jingru Shi, Dan Fang, Zhiqiang Wang, Yuan Liu
Summary: Melatonin has been found to effectively inhibit the transmission of antibiotic resistance genes, providing a potential strategy to prevent the spread of antibiotic resistance. It achieves this by reducing bacterial membrane permeability, inhibiting oxidative stress, and disrupting bacterial proton motive force.
PHARMACOLOGICAL RESEARCH
(2022)
Article
Microbiology
Chunyang Zhu, Yanhong Zhou, Jian Kang, Heng Yang, Jinglin Lin, Binghu Fang
Summary: This study found that alkaline arginine significantly increased the killing effect of gentamicin, tobramycin, kanamycin, and apramycin on drug-resistant Salmonella, including multidrug-resistant strains. Mechanistic studies showed that exogenous arginine increased the proton motive force, leading to increased uptake of gentamicin and ultimately inducing bacterial cell death. Furthermore, in a mouse infection model, arginine effectively improved the activity of gentamicin against Salmonella typhimurium.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Microbiology
Yingkun Wan, Edward Wai Chi Chan, Sheng Chen
Summary: In this study, it was found that bacteria actively generate and maintain the proton motive force (PMF) under adverse conditions such as starvation, in order to support various physiological functions and survive for a prolonged period. The ability to maintain a substantial level of PMF was directly linked to the phenotypic antibiotic tolerance exhibited under nutrient starvation or other adverse conditions. These findings suggest that bacteria do not simply become dormant when they develop antibiotic tolerance, but instead continue to produce proteins that prevent PMF dissipation and actively generate PMF even during long-term starvation. The PMF maintenance mechanisms identified in this study are potential targets for the development of new strategies to control recurrent and chronic infections, especially among patients with weakened immune systems.
MICROBIOLOGY SPECTRUM
(2023)
Article
Chemistry, Multidisciplinary
Zhenfeng Wang, Yong Yan, Chao Li, Yue Yu, Sheng Cheng, Shuai Chen, Xiaojun Zhu, Liping Sun, Wei Tao, Juewen Liu, Feng Wang
Summary: In this study, a liposomal nanomotor system was developed by controlling the self-assembly behavior of gold core-platinum shell nanoparticles on liposomes. This system showed high catalase-like activity and promoted the decomposition of H2O2, leading to enhanced cellular uptake in cancer cells and plant leaves. These findings are important for biomedical and plant nanotechnology research.
Article
Materials Science, Multidisciplinary
Venkateswara Rao Manga, Shun-Li Shang, William Yi Wang, Yi Wang, Jiang Liang, Vincent H. Crespi, Zi-Kui Liu
Article
Materials Science, Paper & Wood
Abdolmadjid Nili, Hojae Yi, Vincent H. Crespi, Virendra M. Puri
Article
Chemistry, Multidisciplinary
Bo Chen, Roald Hoffmann, N. W. Ashcroft, John Badding, Enshi Xu, Vincent Crespi
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2015)
Article
Chemistry, Multidisciplinary
En-shi Xu, Paul E. Lammert, Vincent H. Crespi
Article
Physics, Fluids & Plasmas
Amir Nourhani, Vincent H. Crespi, Paul E. Lammert
Article
Physics, Multidisciplinary
Amir Nourhani, Vincent H. Crespi, Paul E. Lammert
PHYSICAL REVIEW LETTERS
(2015)
Article
Mechanics
Amir Nourhani, Paul E. Lammert, Vincent H. Crespi, Ali Borhan
Article
Mechanics
Amir Nourhani, Vincent H. Crespi, Paul E. Lammert, Ali Borhan
Article
Multidisciplinary Sciences
Daniel Ahmed, Mengqian Lu, Amir Nourhani, Paul E. Lammert, Zak Stratton, Hari S. Muddana, Vincent H. Crespi, Tony Jun Huang
SCIENTIFIC REPORTS
(2015)
Article
Chemistry, Multidisciplinary
Yifan Sun, Yuanxi Wang, Du Sun, Bruno R. Carvalho, Carlos G. Read, Chia-hui Lee, Zhong Lin, Kazunori Fujisawa, Joshua A. Robinson, Vincent H. Crespi, Mauricio Terrones, Raymond E. Schaak
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2016)
Article
Physics, Applied
G. D. Mahan, N. Poilvert, V. H. Crespi
JOURNAL OF APPLIED PHYSICS
(2016)
Article
Materials Science, Paper & Wood
Oleg E. Shklyaev, James D. Kubicki, Heath D. Watts, Vincent H. Crespi
Article
Chemistry, Physical
Thomas C. Fitzgibbons, Malcolm Guthrie, En-shi Xu, Vincent H. Crespi, Stephen K. Davidowski, George D. Cody, Nasim Alem, John V. Badding
Article
Multidisciplinary Sciences
Corey Janisch, Yuanxi Wang, Ding Ma, Nikhil Mehta, Ana Laura Elias, Nestor Perea-Lopez, Mauricio Terrones, Vincent Crespi, Zhiwen Liu
SCIENTIFIC REPORTS
(2014)
Article
Astronomy & Astrophysics
T. A. Engstrom, N. C. Yoder, V. H. Crespi
ASTROPHYSICAL JOURNAL
(2016)