Article
Environmental Sciences
Xiaochen Wang, Wei-Hsin Chen, Yuhan Huang, Long Wang, Yuwei Zhao, Jianbing Gao
Summary: With the increasing market share of gasoline direct injection (GDI) vehicles, the high particulate emissions from GDI engines have become a growing concern due to their negative impacts on human health and the environment. This paper provides a comprehensive review of the physical and chemical characteristics of GDI nanoparticles, including soot oxidation reactivity, morphology, nanostructure, surface chemistry, and chemical components. The review also discusses the differences between GDI and diesel nanoparticles and analyzes the effects of engine operating parameters and aftertreatments on GDI soot features. The conclusions and future research recommendations are also presented.
Article
Chemistry, Multidisciplinary
Sascha T. Loeffler, Julian Huemmer, Andreas Scheurer, Frank W. Heinemann, Karsten Meyer
Summary: In this article, the synthesis and reactivity of a newly developed ligand precursor and its coordination chemistry with uranium were presented. The corresponding complexes were characterized by various spectroscopic and analytical techniques, providing insights into their molecular structures and properties.
Article
Chemistry, Inorganic & Nuclear
Barbora Mala, Laura E. Murtagh, Charlotte M. A. Farrow, Geoffrey R. Akien, Nathan R. Halcovich, Sarah L. Allinson, James A. Platts, Michael P. Coogan
Summary: This study reports the formation of dinuclear complexes from thiophenolate ligands, as well as the photochemical oxidation to sulfinates, leading to the discovery of tunable photophysics depending on the 1,2-diimine ligands. Different ligand conditions result in various types of complexes, with photooxidation yielding previously unreported Pt(IV)-SO2R complexes exhibiting multiple absorption characteristics.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Analytical
Yaqian Feng, Ruxue Li, Peng Zhou, Chunying Duan
Summary: In this study, a novel fluorescence carbon dots was prepared by a one-step hydrothermal approach, which exhibited good fluorescence response to Cr (VI) and could be used for quantitative detection of Cr (VI) in water. The results showed that this fluorescence carbon dots had a broad linear range and a low detection limit, indicating its great potential for portable, low-cost, and green detection of Cr (VI) in practical application.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Xuelin Zhang, Hui Dong, Hui Zhou, Yueyuan Li, Qing Liu, Hongyou Cui, Shujun Wang, Yueyun Li, Qin Wei
Summary: By regulating the surface motifs of metal nano-clusters (MNCs) based on aggregation-induced emission (AIE) strategy, a highly efficient luminescent probe AuAg NCs was designed. The introduction of Ag(I) resulted in denser surface patterns, reducing the non-radiative energy dissipation. Additionally, the spontaneous catalytic cycle amplification strategy improved the electrochemiluminescence (ECL) efficiency of AuAg NCs. The biosensor showed a wide linear relationship range and low detection limit using cardiac troponin I as a model.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Optics
Saleh O. Allehabi, V. A. Dzuba, V. V. Flambaum
Summary: This study demonstrates that certain metastable excited states in Hf II, Hf IV, and W VI ions can serve as reliable clock states. The researchers used various methods to investigate the energy levels, transition amplitudes, and lifetimes of these ions, revealing their potential for precise measurements and related research.
Article
Economics
Yujie Lin, Joshua Linn
Summary: This study examines the impact of energy efficiency and carbon dioxide emissions standards on consumer durables, revealing that the standards have ambiguous effects on product attributes and can potentially undermine consumer welfare.
JOURNAL OF THE ASSOCIATION OF ENVIRONMENTAL AND RESOURCE ECONOMISTS
(2023)
Article
Multidisciplinary Sciences
Yali Yu, Tao Xiong, Zhengfeng Guo, Shijun Hou, Juehan Yang, Yue-Yang Liu, Honggang Gu, Zhongming Wei
Summary: This study reports the synthesis of an in-plane anisotropic SnSe nanosheet using angle-resolved polarized Raman spectroscopy, polarization-resolved optical microscopy, and angle-resolved optical absorption spectroscopy. The SnSe nanosheet exhibits high anisotropic photocurrent ratio, high responsivity, and fast response. These findings provide a new method for fabricating 2D fast-response polarization-sensitive photodetectors in the future.
FUNDAMENTAL RESEARCH
(2022)
Review
Hematology
Cristina Nanni, Carsten Kobe, Bettina Baessler, Christian Baues, Ronald Boellaard, Peter Borchmann, Andreas Buck, Irene Buvat, Bjoern Chapuy, Bruce D. Cheson, Robert Chrzan, Ann-Segolene Cottereau, Ulrich Duhrsen, Live Eikenes, Martin Hutchings, Wojciech Jurczak, Francoise Kraeber-Bodere, Egesta Lopci, Stefano Luminari, Steven MacLennan, N. George Mikhaeel, Marcel Nijland, Paula Rodriguez-Otero, Giorgio Treglia, Nadia Withofs, Elena Zamagni, Pier Luigi Zinzani, Josee M. Zijlstra, Ken Hermaann, Jolanta Kunikowska
Summary: Given the lack of high-certainty evidence and differences in opinion on the use of nuclear medicine for hematological malignancies, a consensus process involving key experts was conducted to provide interim guidance. A three-stage consensus process was used, including a literature review, statement generation, and panel scoring. After two rounds of voting, consensus was reached on most statements, with further studies needed for multiple myeloma and the introduction of new technologies.
LANCET HAEMATOLOGY
(2023)
Article
Biochemical Research Methods
Christian Schwaferts, Patrick Schwaferts, Elisabeth von der Esch, Martin Elsner, Natalia P. Ivleva
Summary: Micro- and nanoplastic contamination is a growing concern for environmental protection and food safety, requiring reliable quantification through analytical techniques. Raman microspectroscopy allows for identification of single particles, with larger particles easily quantified through random sampling while smaller particles require window-based analysis. A bootstrap method is introduced for error quantification, recommending random window selection schemes for improved efficiency.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Physics, Condensed Matter
Monik Panchal, June Callison, Vainius Skukauskas, Diego Gianolio, Giannantonio Cibin, Andrew P. E. York, Manfred E. Schuster, Timothy Hyde, Paul Collier, C. Richard A. Catlow, Emma K. Gibson
Summary: The research found that the catalytic performance of GPF samples with different ash contents varies in the reduction of substances such as CO and NO in exhaust gases. Samples with a higher ash content exhibit more severe performance degradation after aging.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2021)
Article
Environmental Sciences
Jana Weisser, Irina Beer, Benedikt Hufnagl, Thomas Hofmann, Hans Lohninger, Natalia P. Ivleva, Karl Glas
Summary: This study revealed for the first time the sources of microplastics (MP) in bottled mineral water, identifying abrasion from PE-based cap sealing material as the main entry path for MP. The presence of MP was detected throughout the bottling process, highlighting the importance of controlling and preventing the presence of MP in bottled water.
Review
Biochemical Research Methods
Darena Schymanski, Barbara E. Ossmann, Nizar Benismail, Kada Boukerma, Gerald Dallmann, Elisabeth von der Esch, Dieter Fischer, Franziska Fischer, Douglas Gilliland, Karl Glas, Thomas Hofmann, Andrea Kappler, Silvia Lacorte, Julie Marco, Maria E. L. Rakwe, Jana Weisser, Cordula Witzig, Nicole Zumbulte, Natalia P. Ivleva
Summary: This study uses spectroscopic methods to identify and quantify microplastic particles, aiming to enhance the reliability of analysis, improve sample preparation, detection planning, and facilitate better understanding of existing research evaluations.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Jiamin Wu, Xia Zhou, Ping Li, Xiaoling Lin, Jinhua Wang, Ziwei Hu, Pengcheng Zhang, Dong Chen, Huaihong Cai, Reinhard Niessner, Christoph Haisch, Pinghua Sun, Yun Zheng, Zhengjin Jiang, Haibo Zhou
Summary: The magnetically assisted sandwich-type surface-enhanced Raman scattering (SERS) based biosensor achieved ultrasensitive and multiplex detection of three hepatocellular carcinoma-related miRNA biomarkers, showing promise in the diagnosis, prediction, monitoring, and staging of cancers.
ANALYTICAL CHEMISTRY
(2021)
Article
Biochemical Research Methods
Sandra Hess, Reinhard Niessner, Michael Seidel
Summary: This study established a successful workflow for the direct enrichment of human adenovirus from contaminated water, offering an efficient alternative for the fast detection of the virus in water.
JOURNAL OF VIROLOGICAL METHODS
(2021)
Review
Chemistry, Analytical
Jana Weisser, Teresa Pohl, Michael Heinzinger, Natalia P. Ivleva, Thomas Hofmann, Karl Glas
Summary: This article discusses data analysis methods for identifying microplastics using vibrational spectra, introduces relevant programs provided by the scientific community, and aims to provide guidance for those who want to establish or enhance data analysis routines for vibrational spectra of microplastics.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Environmental
Mohammed S. M. Al-Azzawi, Matin Funck, Marco Kunaschk, Elisabeth Von der Esch, Oliver Jacob, Korbinian P. Freier, Torsten C. Schmidt, Martin Elsner, Natalia P. Ivleva, Jochen Tuerk, Oliver Knoop, Joerg E. Drewes
Summary: This study discusses the best practices for microplastic sampling campaigns in wastewater treatment plants (WWTPs) and explores the potential synergies between thermoanalytical and spectroscopic analysis. The results show that polyethylene (PE) is consistently the most prominent polymer in WWTP effluents and can serve as a surrogate polymer to assess the total polymer removal efficiency of tertiary sand filters.
Article
Microbiology
Marion K. Gallus, Irina Beer, Natalia P. Ivleva, Matthias A. Ehrmann
Summary: In this study, a new strain of Fructobacillus was isolated and identified from the flower of a nodding thistle in Germany. The strain is a Gram-positive, rod-shaped, non-motile bacterium with facultative anaerobic growth. Through various analyses, it was classified as a new species named Fructobacillus cardui.
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
(2022)
Article
Chemistry, Analytical
Julian Weng, Kara Mueller, Oleksii Morgaienko, Martin Elsner, Natalia P. Ivleva
Summary: The combination of single-cell Raman microspectroscopy and stable isotope probing allows for tracking carbon and hydrogen fluxes at the single-cell level, with high potential for analyzing metabolic processes and biogeochemical cycles. This study investigates the use of resonance Raman enhanced microspectroscopy for tracking bacterial carotenoids and reveals high phenotypic heterogeneity and evidence for de novo synthesis. It also explores the uptake of hydrogen into carotenoids and a novel approach for simultaneous monitoring of carbon and hydrogen uptake.
Editorial Material
Biochemical Research Methods
Natalia P. Ivleva, Sebastian Primpke, Jennifer M. Lynch
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Biochemical Research Methods
Maximilian J. Huber, Natalia P. Ivleva, Andy M. Booth, Irina Beer, Ivana Bianchi, Roland Drexel, Otmar Geiss, Dora Mehn, Florian Meier, Alicja Molska, Jeremie Parot, Lisbet Sorensen, Gabriele Vella, Adriele Prina-Mello, Robert Vogel, Fanny Caputo
Summary: A comprehensive physicochemical characterization of heterogeneous nanoplastic (NPL) samples remains challenging due to the need for a combination of measurement techniques to improve accuracy and robustness. Various methods including DLS, NTA, TRPS, TEM, SEM, CLS, FFF-MALS, pyGC-MS, and RM were evaluated for NPL size, shape, chemical composition, and quantification. The applicability and limitations of these methods were assessed using representative particles of different chemical natures. The results showed that orthogonal batch methods provided comparable results for monodisperse spherical samples, while deviations were observed in polydisperse and non-spherical particles. Specific techniques such as TRPS and electron microscopy provided increased resolution and morphological information.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Biochemical Research Methods
Oliver Jacob, Alejandro Ramirez-Pinero, Martin Elsner, Natalia P. Ivleva
Summary: Accurate quantification of small microplastics in environmental and food samples is essential for studying their potential hazard. Raman microspectroscopy can identify particles as small as 1 μm in diameter. This study presents a new software, TUM-ParticleTyper 2, which allows for automated quantification of microplastics across the defined size range, using random window sampling and on-the-fly confidence interval estimation.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Spectroscopy
Maria Lanzinger, Dominik Huber, Virginia Merk, Stephanie Kaufmann, Michael Schuster, Natalia Ivleva
Summary: In today's industrial production, it is crucial to eliminate particle contamination in order to ensure the safety and quality of products. This study focuses on the representativeness of in-house generated aluminum reference particles to their source bulk material through quantitative element analysis. The results validate the functionality and applicability of using laser-induced breakdown spectroscopy (LIBS) for particle analysis and provide a new method for the easy generation of internal reference particles.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2023)
Review
Environmental Sciences
Thilo Hofmann, Subhasis Ghoshal, Nathalie Tufenkji, Jan Franklin Adamowski, Stephane Bayen, Qiqing Chen, Philip Demokritou, Markus Flury, Thorsten Hueffer, Natalia P. Ivleva, Rong Ji, Richard L. Leask, Milan Maric, Denise M. Mitrano, Michael Sander, Sabine Pahl, Matthias C. Rillig, Tony R. Walker, Jason C. White, Kevin J. Wilkinson
Summary: Plastics have been widely used in agriculture, but their accumulation in soils has become a major issue. Controlling plastic pollution in agriculture requires rational use, reduction, collection, and innovative recycling. Sustainable alternatives with smaller environmental impacts should be promoted, along with better monitoring, technical innovation, education, and economic incentives.
COMMUNICATIONS EARTH & ENVIRONMENT
(2023)
