Article
Nanoscience & Nanotechnology
Yu. V. Korkh, A. B. Rinkevich, A. S. Klepikova, E. A. Tolmacheva, E. A. Pankrushina
Summary: The study compares the surface potential and local electrostatic properties of graphene films on different dielectric substrates, revealing that the type of substrate, number of layers, and defects will affect the surface potential distribution of graphene.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2022)
Article
Engineering, Biomedical
Yuji Nashimoto, Minori Abe, Ryota Fujii, Noriko Taira, Hiroki Ida, Yasufumi Takahashi, Kosuke Ino, Javier Ramon-Azcon, Hitoshi Shiku
Summary: This study evaluates the role of scanning probe microscopy (SPM) as an analytical tool for microphysiological systems (MPS), providing a new solution for real-time high spatial resolution imaging. A simple vascular model was used for permeability and topographical analysis, paving the way for the application of SPM technology in MPS.
ADVANCED HEALTHCARE MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Stefan R. Anton, Denis E. Tranca, Stefan G. Stanciu, Radu Hristu, Cosmin K. Banica, Eugeniu Vasile, Zhaoyi Hu, Engang Fu, George A. Stanciu
Summary: This study explores the mechanical and optical properties of nanoporous copper (NPC) films treated with acid and base. The results show distinct nanoporous structures in both NPC 1 and NPC 2, with differences in rugosity, connectivity, topological characteristics, and optical properties.
Article
Chemistry, Multidisciplinary
Mahmoud Behzadirad, Stephan Mecholdt, John N. Randall, Joshua B. Ballard, James Owen, Ashwin K. Rishinaramangalam, Alexander Reum, Teodor Gotszalk, Daniel F. Feezell, Ivo W. Rangelow, Tito Busani
Summary: This article introduces the use of GaN nanowires as materials for scanning probe lithography and microscopy, with a low-cost fabrication process and the ability to provide sub-10 nm lithography and atomic scale resolution. GaN nanowires perform well in advanced SPL and imaging.
Article
Chemistry, Multidisciplinary
Chi Zhang, Jason M. Bartell, Jonathan C. Karsch, Isaiah Gray, Gregory D. Fuchs
Summary: A time-resolved near-field magnetic microscope based on magnetothermal interactions is developed, providing spatial resolution on the scale of 100 nm and a temporal resolution below 100 ps. This microscope offers an accessible and comparatively low-cost approach for nanoscale spatiotemporal magnetic microscopy in laboratories.
Article
Chemistry, Analytical
Partha Sarathi Sheet, Suji Park, Pavel Sengupta, Dipankar Koley
Summary: We have developed a multifunctional dendritic molecular probe that can selectively detect Cu2+ ions via potentiometric and fluorometric techniques with low detection limits. The solid-state Cu(II) microsensor made from this probe has a broad linear range, fast response time, and a near Nernstian slope.
Article
Materials Science, Multidisciplinary
B. Flipon, V Grand, B. Murgas, A. Gaillac, A. Nicolay, N. Bozzolo, M. Bernacki
Summary: This paper details an image analysis procedure for estimating grain size distribution from optical and scanning electron micrographs, discussing the definition of grain size, classical methodologies, and the impact of data processing parameters on results. The study compares results obtained through electron backscattered diffraction analysis and image analysis based on backscattered electron or optical micrographs, showing the latter to be more efficient in obtaining accurate grain size distribution information.
MATERIALS CHARACTERIZATION
(2021)
Article
Chemistry, Physical
Yaoping Hou, Chengfu Ma, Wenting Wang, Yuhang Chen
Summary: A plasmonic atomic force microscopy (AFM) probe was proposed, utilizing a part of the laser beam to monitor cantilever deflection as the excitation light source. By integrating photonic crystal cavities near the cantilever's free end, a confined hot-spot at the metal-coated tip apex can be induced via transmitted light excitation. Numerical simulations showed that the plasmonic probe can efficiently couple a tilted, linearly polarized beam and achieve a significant local electromagnetic enhancement, making it a powerful tool for simultaneous optical, mechanical, and electrical characterizations.
Review
Chemistry, Physical
Chunlei Yang, Tianhui Su, Yanbo Hua, Liming Zhang
Summary: This review summarizes the latest results of electrochemical scanning probe microscopy techniques in studying the interfacial properties of electrocatalysts and photoelectrodes, and offers some perspectives on future research directions.
Article
Multidisciplinary Sciences
Jonas Spethmann, Martin Gruenebohm, Roland Wiesendanger, Kirsten von Bergmann, Andre Kubetzka
Summary: Research on antiferromagnets has shifted focus to potential applications in spintronics devices, with experimental investigations into the detailed spin texture of antiferromagnetic domain walls using spin-polarized scanning tunneling microscopy. A new type of domain wall, a superposition state of adjacent domains, has been identified, indicating the potential for controlling domain walls through boundary effects and interaction with movable adsorbed atoms. Understanding the exact spin structure of domain walls is crucial for theoretical modeling and manipulation, given the unique properties of antiferromagnets in faster magnetization dynamics and immunity to stray fields.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Hoontaek Lee, Kumjae Shin, Wonkyu Moon
Summary: Utilizing scanning probe microscopy (SPM) based on a metal-oxide-silicon field-effect transistor (MOSFET) to image interdigitated electrodes covered with oxide films of varying thicknesses allows for analysis of passivation layers of integrated circuits and subsurface imaging of various dielectric layers. The technique evaluates linearity, measures frequency response, and reflects the electrical characteristics of the system, including the MOSFET, conductive tip, and local sample area.
Review
Chemistry, Physical
Prachi Ghoderao, Sanjay Sahare, Shern-Long Lee, Prashant Sonar
Summary: Scanning probe microscopy (SPM) is a powerful technique that allows for the observation and analysis of nanoscale materials and biological molecules through the use of sharp probes that scan the sample surface. This method, which includes scanning tunneling microscopy (STM) and atomic force microscopy (AFM), provides valuable insights into the properties and behavior of these materials at a molecular level. This review highlights the applications of SPM in biomolecule imaging and the study of physiological processes, as well as the challenges and potential solutions in biological sample preparation. It also discusses the recent advancements in STM and AFM applications on biomolecules, such as DNA, proteins, and carbohydrates, and their potential applications in fields like drug delivery and biosensors.
Review
Biotechnology & Applied Microbiology
Brian T. DeVree, Lisa M. Steiner, Sylwia Glazowska, Felix Ruhnow, Klaus Herburger, Staffan Persson, Jozef Mravec
Summary: Plant cell wall-derived biomass is a renewable source of energy and materials, but its complex structure presents challenges for imaging and understanding. Utilizing molecular probes and light microscopy are important tools to study cell wall assemblies. Advances in imaging techniques and probing methods for plant cell walls can benefit bioengineering efforts and industrial processes.
BIOTECHNOLOGY FOR BIOFUELS
(2021)
Article
Engineering, Environmental
Jian Zhang, Wei Shen, Cynthia Collings, Kirk A. Vander Meulen, Brian G. Fox, Leida M. Vazquez Ramos, James A. Dumesic, Shi-You Ding
Summary: Thermochemical pretreatment is crucial for processing lignocellulosic biomass to produce biofuels and biomaterials. γ-Valerolactone (GVL) has been used as a green solvent to dissolve lignin effectively. This study compared the performance of HCl and H2SO4 as catalysts in GVL pretreatment, finding that GVL-HCl at 100°C showed similar effectiveness to GVL-H2SO4 at 120°C in terms of xylan and lignin removal. Real-time imaging revealed that GVL-HCl pretreatment at lower temperature could rapidly remove lignin from cell walls and optimize the efficiency of GVL-based pretreatment.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Emmanuel Mena-Morcillo, Joshua van der Zalm, Aicheng Chen
Summary: In this study, we combined spatially resolved optical spectroscopy with scanning photoelectrochemical microscopy to investigate the properties of nanostructured BiVO4 thin films. By directly measuring the absorbance, we determined the band gap energy at each location. We also used scanning electrochemical cell microscopy to acquire quantitative photoelectrochemical data at the interface of the FTO/BiVO4 film, revealing higher photocurrents at the boundary regions.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Biotechnology & Applied Microbiology
Huizhen Hu, Ran Zhang, Shengqiu Feng, Youmei Wang, Yanting Wang, Chunfen Fan, Ying Li, Zengyu Liu, Rene Schneider, Tao Xia, Shi-You Ding, Staffan Persson, Liangcai Peng
PLANT BIOTECHNOLOGY JOURNAL
(2018)
Article
Biotechnology & Applied Microbiology
Bo Song, Bingyao Li, Xiaoyan Wang, Wei Shen, Sungjin Park, Cynthia Collings, Anran Feng, Steve J. Smith, Jonathan D. Walton, Shi-You Ding
BIOTECHNOLOGY FOR BIOFUELS
(2018)
Article
Biochemical Research Methods
Cheng Zhao, YongKyoung Kim, Yining Zeng, Man Li, Xin Wang, Cheng Hu, Connor Gorman, Susie Y. Dai, Shi-You Ding, Joshua S. Yuan
ACS SYNTHETIC BIOLOGY
(2018)
Article
Agricultural Engineering
Muyang Li, Guilong Yan, Aditya Bhalla, Lisaura Maldonado-Pereira, Petria R. Russell, Shi-You Ding, John E. Mullet, David B. Hodge
INDUSTRIAL CROPS AND PRODUCTS
(2018)
Article
Chemistry, Multidisciplinary
Wei Shen, Cynthia Collings, Muyang Li, Jake Markovicz, John Ralph, Shawn D. Mansfield, Shi-You Ding
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2019)
Article
Plant Sciences
Sungjin Park, Bo Song, Wei Shen, Shi-You Ding
JOURNAL OF EXPERIMENTAL BOTANY
(2019)
Article
Plant Sciences
Bo Song, Shuai Zhao, Wei Shen, Cynthia Collings, Shi-You Ding
FRONTIERS IN PLANT SCIENCE
(2020)
Article
Plant Sciences
Sungjin Park, Shi-You Ding
Editorial Material
Chemistry, Multidisciplinary
Shi-You Ding, Edward A. Bayer
ACS CENTRAL SCIENCE
(2020)
Article
Biotechnology & Applied Microbiology
Bhargava Nemmaru, Nicholas Ramirez, Cindy J. Farino, John M. Yarbrough, Nicholas Kravchenko, Shishir P. S. Chundawat
Summary: This study investigates the role of carbohydrate-binding modules (CBMs) in nonproductive enzyme binding, finding that reduced CBM equilibrium binding affinity towards cellulose I is correlated with improved endocellulase activity.
BIOTECHNOLOGY AND BIOENGINEERING
(2021)
Article
Engineering, Environmental
Jian Zhang, Wei Shen, Cynthia Collings, Kirk A. Vander Meulen, Brian G. Fox, Leida M. Vazquez Ramos, James A. Dumesic, Shi-You Ding
Summary: Thermochemical pretreatment is crucial for processing lignocellulosic biomass to produce biofuels and biomaterials. γ-Valerolactone (GVL) has been used as a green solvent to dissolve lignin effectively. This study compared the performance of HCl and H2SO4 as catalysts in GVL pretreatment, finding that GVL-HCl at 100°C showed similar effectiveness to GVL-H2SO4 at 120°C in terms of xylan and lignin removal. Real-time imaging revealed that GVL-HCl pretreatment at lower temperature could rapidly remove lignin from cell walls and optimize the efficiency of GVL-based pretreatment.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Plant Sciences
Jacob D. Crowe, Pengchao Hao, Sivakumar Pattathil, Henry Pan, Shi-You Ding, David B. Hodge, Jacob Kruger Jensen
Summary: Plant biomass, particularly the secondary cell wall (SCW) formation of cell types in eudicot plants, involves a well-understood molecular interaction between glucuronoxylan (GX) and cellulose. This study characterizes cellulose microfibril organization in GX mutants, revealing the critical role of normal GX composition in cellulose bundle formation and overall cellulose organization within SCWs. Visualized through scanning electron microscopy and atomic force microscopy, findings suggest significant perturbations in cellulose network and nanomechanical properties, impacting enzymatic hydrolysis.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Multidisciplinary Sciences
Markus Hackl, Edward V. Contrada, Jonathan E. Ash, Atharv Kulkarni, Jinho Yoon, Hyeon-Yeol Cho, Ki-Bum Lee, John M. Yarbrough, Cesar A. Lopez, Sandrasegaram Gnanakaran, Shishir P. S. Chundawat
Summary: Protein adsorption to solid carbohydrate interfaces is crucial in biological processes such as biomass deconstruction. This study focuses on understanding the interactions between carbohydrate-binding modules (CBMs) and polysaccharides to improve enzymatic efficiency in biomass deconstruction. The research presents a method using single-molecule force spectroscopy to study the unbinding behavior of CBMs from polysaccharide surfaces. The results reveal distinct CBM binding conformations and provide insights into the structural mechanisms through molecular dynamics simulations.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Biotechnology & Applied Microbiology
Dharanidaran Jayachandran, Peter Smith, Mohammad Irfan, Junhong Sun, John M. Yarborough, Yannick J. Bomble, Eric Lam, Shishir P. S. Chundawat
Summary: Carbohydrate binding modules (CBMs) are used to visualize distinct polysaccharides in plant cell walls. In this study, researchers examined the interactions of engineered CBMs with cellulose and developed tandem CBM designs for better recognition. The results showed that CBM3a had the highest adsorption rate and reversible binding to cellulose, making it suitable for live cell wall imaging. The researchers also demonstrated the use of CBMs as probes to visualize cellulose fibrils during cell wall regeneration in Arabidopsis protoplasts.
BIOTECHNOLOGY AND BIOENGINEERING
(2023)
Article
Biotechnology & Applied Microbiology
Hui Wei, Yongfu Yang, Michael E. Himmel, Melvin P. Tucker, Shi-You Ding, Shihui Yang, Rajeev Arora
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2019)