Hao Shen

J-WAFS PI Gang Chen, J-WAFS Fellow James Zhang, and postdocs Guangxin Lv and Yaodong TU, demonstrated that a "photomolecular effect" could affect calculations of climate change and may lead to improved desalination and drying processes. The effect shows that light, striking water’s surface where air and water meet, can break water molecules away and float them into the air, causing evaporation in the absence of any source of heat. The team recently published the research in a paper in PNAS. They believe the effect happens widely in nature—everywhere from clouds to fog to the surfaces of oceans, soils, and plants—and that it could also lead to new practical applications, including in energy and clean water production. “We’re exploring all these different directions,” Chen told MIT News. “And of course, it also affects the basic science, like the effects of clouds on climate, because clouds are the most uncertain aspect of climate models.” Xiulin Ruan, professor of mechanical engineering at Purdue University, who was not involved in the study, says the research “has significant potential practical applications such as high-performance water desalination driven by solar energy.” J-WAFS is currently a funder of this research for such applications in desalination. Read more here: https://lnkd.in/gfCm8HfZ #Nature #Water #Innovation #Desalination #Environment

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Which field is leading the way with #nanomaterials research? Carbon #nanotubes improve innovations from batteries to biomedicine, and our recent research analysis reveals the leading applications: https://ow.ly/pOWc50RyrWs #CASInsights

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#Review Recent Advancements in Electrochemical Biosensors for Monitoring the Water Quality by Yun Hui, Zhaoling Huang, Md Eshrat E. Alahi, Anindya Nag, Shilun Feng and Subhas Chandra Mukhopadhyay https://lnkd.in/ewZGRQU2 MDPI Chinese Academy of Sciences Guilin University of Electronic Technology #biosensors #electrochemicaldetection #waterqualitymonitoring Technische Universität Dresden #biorecognitionelement #insitumonitoring #surfacemodification #openaccess #Abstract The release of chemicals and microorganisms from various sources, such as industry, agriculture, animal farming, wastewater treatment plants, and flooding, into water systems have caused water pollution in several parts of our world, endangering aquatic ecosystems and individual health. World Health Organization (WHO) has introduced strict standards for the maximum concentration limits for nutrients and chemicals in drinking water, surface water, and groundwater. It is crucial to have rapid, sensitive, and reliable analytical detection systems to monitor the pollution level regularly and meet the standard limit. Electrochemical biosensors are advantageous analytical devices or tools that convert a bio-signal by biorecognition elements into a significant electrical response. Thanks to the micro/nano fabrication techniques, electrochemical biosensors for sensitive, continuous, and real-time detection have attracted increasing attention among researchers and users worldwide. These devices take advantage of easy operation, portability, and rapid response. They can also be miniaturized, have a long-life span and a quick response time, and possess high sensitivity and selectivity and can be considered as portable biosensing assays. They are of special importance due to their great advantages such as affordability, simplicity, portability, and ability to detect at on-site. This review paper is concerned with the basic concepts of electrochemical biosensors and their applications in various water quality monitoring, such as inorganic chemicals, nutrients, microorganisms’ pollution, and organic pollutants, especially for developing real-time/online detection systems. The basic concepts of electrochemical biosensors, different surface modification techniques, bio-recognition elements (BRE), detection methods, and specific real-time water quality monitoring applications are reviewed thoroughly in this article.

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A recent publication from Park et al. at the University of Illinois Urbana-Champaign features Fluigent pressure controllers in a study to develop and demonstrate a nanodialysis (ND) sampling probe adapted for microdialysis sampling. The use of droplet techniques enhances the temporal resolution of the sampling technique and has applications for chemical sampling in biological tissues. Read the paper: https://lnkd.in/eMuA5D8U Learn more about Fluigent pressure controllers: https://lnkd.in/ge-SWWiU    #microfluidics #neuroscience #pharmacology #bioengineering #pressurecontrol

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💡Attention catalysis experts and innovators!    ARPA-E Program Director Dr. Cory Phillips issued a Request for Information (RFI) seeking YOUR input to accelerate the development cycle of heterogeneous catalysts. The deadline is approaching fast—this Thursday at 5PM EST!    🔍We’re seeking disruptive techniques or workflows that can: - integrate catalytic material discovery and synthesis with device performance in a rapid, parallel, automated, and/or combinatorial manner; and  - leverage hardware automation and modern data science to manage large quantities of multi-dimensional experimental data.    Ready to contribute to the future of catalysis? Learn more and respond here: https://lnkd.in/e4-RiBcj.

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This research provides new insights into the fabrication of large-area, high-efficiency quasi-2D PSCs and opens up new avenues for the industrial application of PSCs. In the future, the performance of PSCs can be further enhanced by optimizing the structure and properties of P3HTCA, combining it with other interfacial engineering strategies, and driving its application in the photovoltaic field. #SolarSimulator #SunSimulator #QuantumEfficiency #Perovskite #SolarCell #Photoluminescence

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🎉2023 Impact Factors for MDPI Journals Released Polymers MDPI ranks Q1 (18 among 94 titles) in Polymer Science category. Check the new impact factors here: https://lnkd.in/gWawDFBc

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In new a new paper in Cell, the Doudna lab and co-first authors Amy Eggers and Kai Chen PhD use rational engineering to make more efficient Cas editors. ✂️ Read more here: https://ow.ly/kPxi50RQirF

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How does #microwave-assisted synthesis enhance the #photocatalytic power of TiO2 #nanoparticles? Nano Biomed. Eng. https://lnkd.in/gqcZSx3k

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How do copper and iridium alloy to form efficient and stable catalyst nanoparticles? Alexandre Foucher, Eric Stach, and their colleagues at the University of Pennsylvania, Paul Scherrer Institute, and Stony Brook University published recent work characterizing Ir nanoshells derived from core-shell Cu-Ir catalyst nanoparticles with the Hummingbird Scientific gas heating TEM sample holder (https://lnkd.in/gwV-vim). In-situ high-temperature oxygen reduction and oxygen evolution reactions under STEM-EDS were performed alongside XAS to investigate the stability and evolution of nanoparticle structure and chemistry. In-situ STEM gas heating experiments were performed under O2 and H2 environments up to 800 °C, where the remarkable stability of the thick Ir-shells was demonstrated. XAS revealed residual Cu remaining inside the shells after oxidation, helping to rationalize the boost in catalytic activity compared to conventional nanocatalysts. The multimodal approach to nanoparticle characterization revealed design principles for future optimization of nanocatalysts, reducing precious metal usage and cost. See the comments below for a link to the full paper.    Follow Hummingbird Scientific to stay up to date on the latest in-situ TEM news. #STEM #catalysis #hummingbirdscientific #nanotechnology #materialsscience #EDS #XAS #nanoshells

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Congratulations to Jeremy Espano and Dr. Janet Macdonald! Their article, “Phase Control in the Synthesis of Iron Sulfides” published in Journal of the American Chemical Society, has been selected as a VINSE Spotlight Publication. About the author: Jeremy Espano, a fifth-year Ph.D. candidate in Interdisciplinary Materials Science at Vanderbilt University under the supervision of Prof. Janet Macdonald in the Department of Chemistry. In their recent work published in the Journal of the American Chemical Society, the Macdonald lab used a library of thioureas to study the effect of decomposition kinetics on phase determination, quantified the phase mixtures using powder X-ray diffraction. Their results found that the bottom-up synthesis of crystalline structures in solids can be predicted by considering the anion stacking and thermodynamic relationships between the phases. In their work, they can map out these relationships and rationally target the synthesis of 6 of the 8 iron sulfides. The paper provides a new way to think about bottom-up synthesis and phase determination, which will contribute to the further development of next generation crystalline materials. Jeremy Espano, Janet E. Macdonald. Phase Control in the Synthesis of Iron Sulfides. Journal of the American Chemical Society, 145, no. 34 (2023): 18948-18955. #VINSEvandy #VINSE

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Last week CAS jointly released a research report, Trailblazing the Future with Emerging Biomaterials, with the Research Center for the Industries of the Future at Westlake University, Hangzhou, China. With leading authors Dr. Angela Zhou from CAS and Dr. Yutao Zhan from Westlake, this collaboration serves the global community, hoping to provide data-backed analysis for the general public that may be interested in biomedical materials, as well as for business, investors and policy makers to assist their decision making. DOWNLOAD the insight report here https://lnkd.in/eZRGRZ-U

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Exploring Copper-Based 2D Materials for CO2 Reduction Copper-based materials are leading catalysts for the electrochemical reduction of CO2 (CO2 RR). The large surface area and tunable properties of two-dimensional (2D) materials make them promising candidates for catalyst design. Combining these could yield innovative catalysts for converting CO2 into valuable products. Our recent study employs density functional theory (DFT) with D3 van der Waals corrections and the computational hydrogen electrode model to examine the effects of the Cu/S ratio in 2D CuSx materials (x = 0.5, 1.0, and 1.5) on CO2 RR. This work was performed by Henrique Bacco during his PhD at the #QTNano group at the São Carlos Institute of Chemistry, USP - Universidade de São Paulo Key findings include: --- CuS0.5 shows high onset potentials (Uonset) for CO and HCOOH (-1.67 and -1.35 V vs. RHE, respectively). --- CuS is an effective candidate for CO and HCOOH formation, with a Uonset of -0.29 V vs. RHE for both. --- CuS1.5 presents small Uonset values for CO2 RR towards CO, HCOOH, and CH4 (-0.29 V vs. RHE for CO and HCOOH, and -0.38 V vs. RHE for CH4). --- The potential-determining step (PDS) for CO and HCOOH formation on CuS and CuS1.5 is CO2 → *COOH, while for CH4 formation on CuS1.5, it is *CO → *COH. Notably, *CO desorption limits CH4 formation on CuS. Our results suggest that breaking the *CO and *COOH or *CHO/ *COH linear scaling relationships or enhancing CO adsorption are potential routes for optimizing catalysts in this material class. https://lnkd.in/dz6cp3ZH

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Progress in Nanomaterial-Driven Redox Reactions for Water Purification: A Critical Review https://lnkd.in/gZaKBb3z

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This Collection from ACS Central Science highlights advances in material and process development devoted to enhancing clean energy production, storage, and conversion, to foster a sustainable, low-carbon future. https://go.acs.org/9Tu

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#mdpisymmetry Article "Counting Polynomials in Chemistry: Past, Present, and Perspectives" is available at https://lnkd.in/gQCzUMpT Authors: Dan-Marian Joița, Mihaela Aurelia Tomescu and Lorentz Jäntschi #chemicalgraphtheory #polynomials

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Bridging Chemistry and Physics on the Path to New Materials: Check out five questions with CEC's Director Michael Rose in this post by CNS: https://lnkd.in/gwDAPsYk

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Editors' Choice Perspective article (Free to Read) published in ACS Energy Letters Color tunable light emitting lead halide perovskite nanocrystals are approaching a decade since their first synthesis, and significant progress has been achieved from understanding their formation chemistry to investigating their photophysics. However, a major wing of semiconductor nanocrystals, the epitaxial heterostructures of plasmonic noble metals with these emerged halide perovskite nanocrystals, could not be explored as expected. This poses a big question and also excites chemists to understand more on these nanocrystals. However, several other heterostructures like Pt-CsPBBr3 and Pd-CsPbBr3 are already reported, which opened up windows to expedite developments of all such nanocrystal heterostructures. Keeping these in mind, this prospective study brings the correlation of crystallographic orientations of different metal(0) and halide perovskite nanocrystals with the reaction chemistry to establish the ionic-metallic bonds at the interfaces for the formation of their heterostructures. https://lnkd.in/ea23Xfr9

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Scientists employed 3D electron tomography and mathematical theory to reveal intricate nanoscale voids directly influencing filtration performance https://lnkd.in/ea7prKR8 #microscopy #tomography #filtration

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