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  • Artificial Soils Reveal Individual Factor Controls on Microbial Processes 

    Del Valle, Ilenne; Gao, Xiaodong; Ghezzehei, Teamrat A.; Silberg, Jonathan J.; Masiello, Caroline A. (2022)
    Soil matrix properties influence microbial behaviors that underlie nutrient cycling, greenhouse gas production, and soil formation. However, the dynamic and heterogeneous nature of soils makes it challenging to untangle the effects of different matrix properties on microbial behaviors. To address this challenge, we developed a tunable artificial soil ...
  • A Decarbonization Roadmap for Taiwan and Its Energy Policy Implications 

    Lau, Hon Chung; Tsai, Steve C. (2022)
    The objective of this paper is to propose a decarbonization roadmap for Taiwan to achieve net-zero emissions by 2050 by analyzing the status of fossil and non-fossil energies, screening applicable decarbonization technologies for their effectiveness, and then proposing an energy mix for the future. The novelty of this work lies in the screening ...
  • Understanding fragility and engineering activation stability in two-dimensional covalent organic frameworks 

    Zhu, Dongyang; Zhang, Jun-Jie; Wu, Xiaowei; Yan, Qianqian; Liu, Fangxin; (2022)
    The sensitivity of covalent organic frameworks (COFs) to pore collapse during activation processes is generally termed activation stability, and activation stability is important for achieving and maintaining COF crystallinity and porosity which are relevant to a variety of applications. However, current understanding of COF stability during activation ...
  • Hydrated Anions: From Clusters to Bulk Solution with Quasi-Chemical Theory 

    Gomez, Diego T.; Pratt, Lawrence R.; Asthagiri, Dilipkumar N.; Rempe, Susan B. (2022)
    ConspectusThe interactions of hydrated ions with molecular and macromolecular solution and interface partners are strong on a chemical energy scale. Here, we recount the foremost ab initio theory for the evaluation of the hydration free energies of ions, namely, quasi-chemical theory (QCT). We focus on anions, particularly halides but also the hydroxide ...
  • The role of spatial structures of tissues in cancer initiation dynamics 

    Spaulding, Cade; Teimouri, Hamid; Kolomeisky, Anatoly B.; Center for Theoretical Biological Physics (2022)
    It is widely believed that biological tissues evolved to lower the risks of cancer development. One of the specific ways to minimize the chances of tumor formation comes from proper spatial organization of tissues. However, the microscopic mechanisms of underlying processes remain not fully understood. We present a theoretical investigation on the ...
  • Ultrahigh resistance of hexagonal boron nitride to mineral scale formation 

    Zuo, Kuichang; Zhang, Xiang; Huang, Xiaochuan; Oliveira, Eliezer F.; Guo, Hua; (2022)
    Formation of mineral scale on a material surface has profound impact on a wide range of natural processes as well as industrial applications. However, how specific material surface characteristics affect the mineral-surface interactions and subsequent mineral scale formation is not well understood. Here we report the superior resistance of hexagonal ...
  • Titanium oxide improves boron nitride photocatalytic degradation of perfluorooctanoic acid 

    Duan, Lijie; Wang, Bo; Heck, Kimberly N.; Clark, Chelsea A.; Wei, Jinshan; (2022)
    Boron nitride (BN) has the newly-found property of degrading recalcitrant polyfluoroalkyl substances (PFAS) under ultraviolet C (UV-C, 254 nm) irradiation. It is ineffective at longer wavelengths, though. In this study, we report the simple calcination of BN and UV-A active titanium oxide (TiO2) creates a BN/TiO2 composite that is more photocatalytically ...
  • CO2/carbonate-mediated electrochemical water oxidation to hydrogen peroxide 

    Fan, Lei; Bai, Xiaowan; Xia, Chuan; Zhang, Xiao; Zhao, Xunhua; (2022)
    Electrochemical water oxidation reaction (WOR) to hydrogen peroxide (H2O2) via a 2e− pathway provides a sustainable H2O2 synthetic route, but is challenged by the traditional 4e− counterpart of oxygen evolution. Here we report a CO2/carbonate mediation approach to steering the WOR pathway from 4e− to 2e−. Using fluorine-doped tin oxide electrode in ...
  • Tissue Engineering and Regulatory Science 

    Zhao, Peng; Liu, Wenbo; Tian, Jiaxin; Shi, Xinli; Gu, Xiaosong; (2022)
  • Understanding the effect of liquid crystal content on the phase behavior and mechanical properties of liquid crystal elastomers 

    Barnes, Morgan; Cetinkaya, Sueda; Ajnsztajn, Alec; Verduzco, Rafael (2022)
    Liquid crystal elastomers are stimuli-responsive, shape-shifting materials. They typically require high temperatures for actuation which prohibits their use in many applications, such as biomedical devices. In this work, we demonstrate a simple and general approach to tune the order-to-disorder transition temperature (TODT) or nematic-to-isotropic ...
  • How Pioneer Transcription Factors Search for Target Sites on Nucleosomal DNA 

    Felipe, Cayke; Shin, Jaeoh; Kolomeisky, Anatoly B.; Center for Theoretical Biological Physics (2022)
    All major biological processes start after protein molecules known as transcription factors detect specific regulatory sequences on DNA and initiate genetic expression by associating to them. But in eukaryotic cells, much of the DNA is covered by nucleosomes and other chromatin structures, preventing transcription factors from binding to their targets. ...
  • Grain boundary dynamics driven by magnetically induced circulation at the void interface of 2D colloidal crystals 

    Lobmeyer, Dana M.; Biswal, Sibani Lisa (2022)
    The complexity of shear-induced grain boundary dynamics has been historically difficult to view at the atomic scale. Meanwhile, two-dimensional (2D) colloidal crystals have gained prominence as model systems to easily explore grain boundary dynamics at single-particle resolution but have fallen short at exploring these dynamics under shear. Here, we ...
  • Evaluation of Decarbonization Technologies for ASEAN Countries via an Integrated Assessment Tool 

    Lau, Hon Chung (2022)
    A new assessment tool for evaluating decarbonization technologies that considers each technology’s sustainability, security, affordability, readiness, and impact for a specific country is proposed. This tool is applied to a set of decarbonization technologies for the power, transport, and industry sectors for the ten Southeast Asian countries that ...
  • Decarbonization roadmaps for ASEAN and their implications 

    Lau, Hon Chung (2022)
    The objective of this paper is to derive, for the first time, decarbonization roadmaps for the ten nations of ASEAN. This study first presents a regional view of ASEAN’s fossil and renewable energy usage and energy-related CO2 emission. Results show that renewable energies have been losing ground to fossil energies in the last two decades and fossil ...
  • Thermal annealing effects on palladium-decorated gold nanoparticle catalysts 

    Fang, Yu-Lun; Zhao, Zhun; Heck, Kimberly N.; Pretzer, Lori A.; Guo, Neng; (2022)
    Palladium metal supported on gold in the form of surface ensembles have enhanced catalytic properties compared to monometallic Pd, as exemplified by Pd-decorated Au nanoparticles (Pd-on-Au NPs) for various room-temperature reactions. Whereas the catalytic properties and nanostructure of Pd-on-Au NPs are not known at higher temperatures, this work ...
  • Solution-Deposited and Patternable Conductive Polymer Thin-Film Electrodes for Microbial Bioelectronics 

    Tseng, Chia-Ping; Liu, Fangxin; Zhang, Xu; Huang, Po-Chun; Campbell, Ian; (2022)
    Microbial bioelectronic devices integrate naturally occurring or synthetically engineered electroactive microbes with microelectronics. These devices have a broad range of potential applications, but engineering the biotic–abiotic interface for biocompatibility, adhesion, electron transfer, and maximum surface area remains a challenge. Prior approaches ...
  • Measuring in-situ capillary pressure of a flowing foam system in porous media 

    Vavra, Eric; Puerto, Maura; Bai, Chutian; Ma, Kun; Mateen, Khalid; (2022)
    Hypothesis: Capillary pressure (Pc) is an intrinsic property of aqueous foams that has been demonstrated to play an important role in lamella rupture. Thus, directly measuring in-situ capillary pressure of a foam flowing through porous media has potential to greatly improve understanding of this complex process. Experiments: A capillary pressure probe ...
  • Can we understand the mechanisms of tumor formation by analyzing dynamics of cancer initiation? 

    Teimouri, Hamid; Kolomeisky, Anatoly B.; Center for Theoretical Biological Physics (2022)
    Cancer is a collection of related genetic diseases exhibiting uncontrolled cell growth that interferes with normal functioning of human organisms. It results from accumulation of unfavorable mutations in tissues. While the biochemical picture of how cancer appears is known, the molecular mechanisms of tumor formation remain not fully understood despite ...
  • 3D Covalent Organic Frameworks with Interpenetrated pcb Topology Based on 8-Connected Cubic Nodes 

    Shan, Zhen; Wu, Miaomiao; Zhu, Dongyang; Wu, Xiaowei; Zhang, Kan; (2022)
    The connectivity of building units for 3D covalent organic frameworks (COFs) has long been primarily 4 and 6, which have severely curtailed the structural diversity of 3D COFs. Here we demonstrate the successful design and synthesis of a porphyrin based, 8-connected building block with cubic configuration, which could be further reticulated into an ...
  • Versatile acid solvents for pristine carbon nanotube assembly 

    Headrick, Robert J.; Williams, Steven M.; Owens, Crystal E.; Taylor, Lauren W.; Dewey, Oliver S.; (2022)
    Chlorosulfonic acid and oleum are ideal solvents for enabling the transformation of disordered carbon nanotubes (CNTs) into precise and highly functional morphologies. Currently, processing these solvents using extrusion techniques presents complications due to chemical compatibility, which constrain equipment and substrate material options. Here, ...

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