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Research Highlights

            

2020

Microfibers
© 2020 Beilstein Journal of Nanotechnology
MAPEX Research Highlights|

Wet-spinning of magneto-responsivehelical chitosan microfibers

Dorothea Brüggemann, Johanna Michel, Naiana Suter, Matheus Grande de Aguiar, Michael Maas

Beilstein J. Nanotechnology (2020) 11, 991–999.

doi:10.3762/bjnano.11.83

Helical structures can be found in nature at various length scales ranging from the molecular level to the macroscale. Due to…

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Simulation eines turbulenten Blutstroms
© ZARM / Universität Bremen
MAPEX Research Highlights|

Nonlinear hydrodynamic instability and turbulence in pulsatile flow

Duo Xu, Atul Varshney, Xingyu Ma, Baofang Song, Michael Riedl, Marc Avila, Björn Hof

PNAS (2020) 117, 11233-11239

https://doi.org/10.1073/pnas.1913716117

Pulsating flows through tubular geometries are laminar provided that velocities are moderate. This in particular is also believed to apply to…

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Bild Paper
© 2020 Advanced Engineering Materials
MAPEX Research Highlights|

Strong Macroscale Supercrystalline Structures by 3D Printing Combined with Self‐Assembly of Ceramic Functionalized Nanoparticles

Berta Domènech, Alvin T. L. Tan, Hans Jelitto, Eduardo Zegarra Berodt, Malte Blankenburg, Oliver Focke, Jaclyn Cann, C. Cem Tasan, Lucio Colombi Ciacchi, Martin Müller, Kaline P. Furlan, A. John Hart, Gerold A. Schneider

Advanced Engineering Materials (2020) 22, 2000352

https://doi.org/10.1002/ade…

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© 2020 Acta Materialia
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Additive manufacturing of heavy rare earth free high-coercivity permanent magnets

Volegov, A.S., Andreev, S.V., Selezneva, N.V., Ryzhikhin, I.A., Kudrevatykh, N.V., Mädler, L., Okulov, I.V.

Acta Materialia (2020) 188, 733-739

https://doi.org/10.1016/j.actamat.2020.02.058

Laser based powder bed fusion is a promising manufacturing method that can be used for the fabrication of…

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Moleküle
© 2020 Materials Advances
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Simulation-based evaluation of zeolite adsorbents for the removal of emerging contaminants

Michael Fischer

Materials Advances (2020) 1, 86-98

DOI: 10.1039/d0ma00025f

A number of experimental studies have evaluated the potential of hydrophobic high-silica zeolites for the adsorptive removal of emerging organic contaminants, such as pharmaceuticals and personal care products, from water.…

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AIMD Simulation
© 2020 ACS Catalysis
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What Changes on the Inverse Catalyst? Insights from CO Oxidation on Au-Supported Ceria Nanoparticles Using Ab Initio Molecular Dynamics

Yong Li, Shikun Li, Marcus Bäumer, Elena A. Ivanova-Shor, Lyudmila V. Moskaleva

ACS Catalysis (2020) 10, 3164-3174

https://doi.org/10.1021/acscatal.9b05175

Gold-supported ceria nanoparticles (CeOx/Au), constituting an inverse system with respect to the more commonly studied ceria-supported gold…

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nsCouette – A high-performance code for direct numerical simulations of turbulent Taylor–Couette flow
© 2020 Software X
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nsCouette – A high-performance code for direct numerical simulations of turbulent Taylor–Couette flow

Jose Manuel Lopez, Daniel Feldmann, Markus Rampp, Alberto Vela-Martin, Liang Shi, Marc Avila

Software X (2020) 11, 100395

https://doi.org/10.1016/j.softx.2019.100395

We present nsCouette, a highly scalable software tool to solve the Navier–Stokes equations for incompressible fluid flow between…

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Desalination
© 2020 Desalination
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Lithium recovery from diluted brine by means of electrochemical ion exchange in a flow-through-electrodes cell

Maria Sofia Palagonia, Doriano Brogioli, Fabio La Mantia

Desalination (2020) 475, 114192

DOI: 10.1016/j.desal.2019.114192

Lithium is becoming an important raw material due to the expansion of the market of lithium-ion batteries, required for electric vehicles and for stationary energy storage.…

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Scheme of the applied PFG-STE sequence
© 2020 Chemical Engineering Journal
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Pore-Scale Analysis of Axial and Radial Dispersion Coefficients of Gas Flow in Macroporous Foam Monoliths Using NMR-based Displacement Measurements

Mojtaba Mirdrikvand, Mehrdad Sadeghi, M. Nurul Karima, Jörg Thöming, Wolfgang Dreher

Chemical Engineering Journal (2020) 388 124234

https://doi.org/10.1016/j.cej.2020.124234

A micro-scale analysis of mass transport in ceramic foams that are used as catalyst supports in gas phase reactions is of…

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Model‐Based Nanoengineered Pharmacokinetics of Iron‐Doped Copper Oxide for Nanomedical Applications
© 2020 Angewandte Chemie - International Edition
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Model-Based Nanoengineered Pharmacokinetics of Iron-Doped Copper Oxide for Nanomedical Applications

M. Sc. Hendrik Naatz, Dr. Bella B. Manshian, Dr. Carla Rios Luci, Dr. Vasiliki Tsikourkitoudi, Prof. Dr. Yiannis Deligiannakis, Dr. Johannes Birkenstock, Dr. Suman Pokhrel, Prof. Dr. Lutz Mädler, Dr. Stefaan J. Soenen

Angewandte Chemie - International Edition (2020) 59, 1828-1836

https://doi.org/1…

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2019

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© 2019 Advanced Materials
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Beating Thermal Coarsening in Nanoporous Materials via High-Entropy Design

Soo-Hyun Joo,* Jae Wung Bae, Won-Young Park, Yusuke Shimada, Takeshi Wada, Hyoung Seop Kim, Akira Takeuchi, Toyohiko J. Konno, Hidemi Kato,* and Ilya V. Okulov

Advanced Materials (2019) 1906160

https://doi.org/10.1002/adma.201906160

Controlling the feature sizes of 3D bicontinuous nanoporous…

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Rigid Band Shifts in Two-Dimensional Semiconductors through External Dielectric Screening
© 2019 Physical Review Letters
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Rigid Band Shifts in Two-Dimensional Semiconductors through External Dielectric Screening

Lutz Waldecker, Archana Raja, Malte Rösner, Christina Steinke, Aaron Bostwick, Roland J. Koch, Chris Jozwiak, Takashi Taniguchi, Kenji Watanabe, Eli Rotenberg, Tim O. Wehling, and Tony F. Heinz

Physical Review Letters (2019) 123, 206403

https://doi.org/10.1103/PhysRevLett.123.206403

We…

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Coherent Real-Space Charge Transport Across a Donor–Acceptor Interface Mediated by Vibronic Couplings
© 2019 Nano Letters
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Coherent Real-Space Charge Transport across a Donor-Acceptor Interface Mediated by Vibronic Couplings

Ziyao Xu, Yi Zhou, Lynn Groß, Antonietta De Sio, Chi Yung Yam, Christoph Lienau*, Thomas Frauenheim, GuanHua Chen*

Nano Letters (2019) 19(11), pp. 8630-8637

https://doi.org/10.1021/acs.nanolett.9b03194

There is growing experimental and theoretical evidence that vibronic couplings, couplings…

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Wafer‐Scale Synthesis of Graphene on Sapphire: Toward Fab‐Compatible Graphene
© 2019 Small
MAPEX Research Highlights|

Wafer-Scale Synthesis of Graphene on Sapphire: Toward Fab-Compatible Graphene

Neeraj Mishra, Stiven Forti, Filippo Fabbri, Leonardo Martini, Clifford McAleese, Ben R. Conran, Patrick R. Whelan, Abhay Shivayogimath, Bjarke S. Jessen, Lars Buß, Jens Falta, Ilirjan Aliaj, Stefano Roddaro, Jan I. Flege, Peter Bøggild, Kenneth B. K. Teo, Camilla Coletti

Small (2019), Volume 15,…

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21.10.2019 Fast and Accurate Quantum Crystallography: From Small to Large, from Light to Heavy
© Journal of Physical Chemistry Letters
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Fast and Accurate Quantum Crystallography: From Small to Large, from Light to Heavy

Lorraine A. Malaspina, Erna K. Wieduwilt, Justin Bergmann, Florian Kleemiss, Benjamin Meyer, Manuel F. Ruiz-López, Rumpa Pal, Emanuel Hupf, Jens Beckmann, Ross O. Piltz, Alison J. Edwards, Simon Grabowsky, Alessandro Genoni

Journal of Physical Chemistry Letters (2019), Volume 10, Issue 22, 21…

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© 2019 American Chemical Society
MAPEX Research Highlights|

Controlling the Multiscale Structure of Nanofibrous Fibrinogen Scaffolds for Wound Healing

Stapelfeldt, K., Stamboroski, S., Walter, I., Suter, N., Kowalik, T., Michaelis, M., Brüggemann, D.

Nano letters (2019) 19 (9) , pp. 6554-6563. 

https://doi.org/10.1021/acs.nanolett.9b02798

As a key player in blood coagulation and tissue repair, fibrinogen has gained increasing attention to…

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© Acta Crystallographica
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Relativistic quantum crystallography of diphenyl- And dicyanomercury. Theoretical structure factors and Hirshfeld atom refinement

Bučinský, L., Jayatilaka, D., Grabowsky, S.

Acta Crystallographica Section A: Foundations and Advances (2019) 75, pp. 705-717. 

https://doi.org/10.1107/S2053273319008027

Quantum crystallographic refinement of heavy-element-containing compounds is a challenge, because many physical effects have to…

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© Advanced Materials
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Living Materials Herald a New Era in Soft Robotics

Appiah, C., Arndt, C., Siemsen, K., Heitmann A., Staubitz A., Selhuber‐Unkel C.

Advanced Materials (2019) 1807747 

https://doi.org/10.1002/adma.201807747

Living beings have an unsurpassed range of ways to manipulate objects and interact with them. They can make autonomous decisions and can heal…

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© The Author(s) 2018. Published by Oxford University Press.
MAPEX Research Highlights|

Supervised non-negative matrix factorization methods for MALDI imaging applications

Leuschner, J., Schmidt, M., Fernsel, P., Lachmund, D., Boskamp, T., Maass, P.

Bioinformatics (Oxford, England) (2019) 35 (11), pp.1940-1947

https://dx.doi.org/10.1093/bioinformatics/bty909

MOTIVATION: Non-negative matrix factorization (NMF) is a common tool for obtaining low-rank approximations…

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© 2019 American Physical Society
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Layer-by-Layer Resistive Switching: Multistate Functionality due to Electric-Field-Induced Healing of Dead Layers

Krisponeit, J.-O., Damaschke, B., Moshnyaga, V., Samwer, K.

Physical Review Letters (2019) 122 (13)

http://dx.doi.org/10.1103/PhysRevLett.122.136801

Materials exhibiting reversible resistive switching in electrical fields are highly demanded for functional elements in oxide electronics. In…

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2018

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© Royal Society of Chemistry 2018
MAPEX Research Highlights|

Hazard assessment of quinaldine-, alkylcarbazole-, benzene- and toluene-based liquid organic hydrogen carrier (LOHCs) systems

Markiewicz, M., Zhang, Y.-Q., Empl, M.T., Lykaki, M., Thöming, J., Steinberg, P., Stolte, S.

Energy and Environmental Science (2019) 12 (1), 366-383.

http://dx.doi.org/10.1039/c8ee01696h

Due to the finite nature and scarcity of crude oil-based fuels, increasing attention is being directed towards…

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RH
© Royal Society of Chemistry 2018
News no.: 064 | MAPEX Research Highlights|

Ligand-functionalized Pt nanoparticles as asymmetric heterogeneous catalysts: molecular reaction control by ligand–reactant interactions

A. Šulce, J. Backenköhler, I. Schrader, M. Delle Piane, C. Müller, A. Wark, L.Colombi Ciacchi, V. Azov, S. Kunz

Catalysis Science & Technology (2018), 8, 6062 - 6075.

http://dx.doi.org/10.1039/C8CY01836G

The asymmetric hydrogenation of β-keto esters over platinum nanoparticles (NPs)…

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© 2018 American Chemical Society
News no.: 063 | MAPEX Research Highlights|

Structural and Computational Assessment of the Influence of Wet-Chemical Post-Processing of the Al-Substituted Cubic Li7La3Zr2O12

Kun, R., Langer, F., Delle Piane, M., Ohno, S., Zeier, W.G., Gockeln, M., Colombi Ciacchi, L., Busse, M., Fekete, I.

ACS Applied Materials and Interfaces (2018) , . Article in Press. 

https://pubs.acs.org/doi/10.1021/acsami.8b09789

Li7La3Zr2O12 (LLZO) and related compounds are considered as…

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© 2018 American Chemical Society
News no.: 061 | MAPEX Research Highlights|

Tuning the Optoelectronic Properties of Stannoles by the Judicious Choice of the Organic Substituents

 R. Y. Medina, I.-M., Rohdenburg, M., Mostaghimi, F., Grabowsky, S., Swiderek, P., Beckmann, J., Hoffmann, J., Dorcet, V., Hissler, M., Staubitz, A.

Inorganic Chemistry (2018), 57 (20), pp 12562–12575.

http://dx.doi.org/10.1021/acs.inorgchem.8b01649

Stannoles are organometallic rings in which…

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research highlight
© Authors
News no.: 60 | MAPEX Research Highlights|

Al(OCArF3)3 – a thermally stable Lewis superacid

Authors:J.F. Kögel,  A. Y. Timoshkin, A. Schröder, E. Lorka, J. Beckmann

Journal:Chemical Science (2018), 9, 8178-8183.

http://dx.doi.org/10.1039/C8SC02981D

The adduct free Lewis superacid Al(OCArF3)3 was obtained by the reaction of ArF3COH with AlEt3 and fully characterized (ArF = C6F5). It…

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Materialien für die Photonik von morgen
© Andreas Beuthner
News no.: 059 | MAPEX Research Highlights|

Biexciton fine structure in monolayer transition metal dichalcogenides

A. Steinhoff, M. Florian, A. Singh, K. Tran, M. Kolarczik, S. Helmrich, A. W. Achtstein, U. Woggon, N. Owschimikow, F. Jahnke & X. Li 

Nature Physics (2018)

https://doi.org/10.1038/s41567-018-0282-x

The optical properties of atomically thin transition metal dichalcogenide (TMDC) semiconductors…

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mapex-research-highlight
© 2018 American Chemical Society
News no.: 058 | MAPEX Research Highlights|

Visible-Light Photocatalysis with Mullite-Type Bi2(Al1–xFex)4O9: Striking the Balance between Bandgap Narrowing and Conduction Band Lowering

M. Curti , A. Kirsch, L. I. Granone∥ , F. Tarasi, G. López-Robledo, D. W. Bahnemann∥ , M. M. Murshed, T.M. Gesing , C. B. Mendive

ACC Catalysis (2018) 8, 8844-8855.

http://dx.doi.org/10.1021/acscatal.8b01210

The rich crystal chemistry of mullite-type Bi2M4O9 (M = Fe, Al, Ga) offers multiple…

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Research-Highlight
© The Author(s) 2018
News no.: 057 | MAPEX Research Highlights|

Bridging the scales in high- throughput dielectrophoretic (bio-) particle separation in porous media

G.R. Pesch, M. Lorenz, S. Sachde, S. Salameh, F. Du, M. Baune, P. E. Boukany & J. Thöming

Scientific Reports (2018) 8:10480

https://doi.org/10.1038/s41598-018-28735-w

Dielectrophoresis (DEP) is a versatile technique for the solution of difficult (bio-)particle separation tasks based on size and…

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© 2018 Elsevier Ltd.
News no.: 056 | MAPEX Research Highlights|

Flame aerosol deposited Li4Ti5O12 layers for flexible, thin film all-solid-state Li-ion batteries

M. Gockeln, J. Glenneberg, M. Busse, S. Pokhrel, L. Mädler, R. Kun 

Nano Energy (2018) 49, 564-573.

https://doi.org/10.1016/j.nanoen.2018.05.007

Flexible thin film all-solid-state Li-ion batteries are considered as promising candidates to power a multitude of flexible and miniaturized electronic…

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© 2018 American Chemical Society
News no.: 055 | MAPEX Research Highlights|

New Model for Predicting Adsorption of Polar Molecules in Metal–Organic Frameworks with Unsaturated Metal Sites

C. Campbell, J. R. B. Gomes , M. Fischer, M. Jorge

J. Phys. Chem. Lett., (2018) 9 ,3544–3553.

http://dx.doi.org/10.1021/acs.jpclett.8b00967

Conventional molecular models fail to correctly describe interactions of adsorbates with coordinatively unsaturated sites (CUS) present in a large number of…

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2017

© Phys. Rev. Lett.
News no.: 044 | MAPEX Research Highlights|

MICROSCOPE Mission: First Results of a Space Test of the Equivalence Principle

Pierre Touboul, Gilles Métris, Manuel Rodrigues, Yves André, Quentin Baghi, Joël Bergé, Damien Boulanger, Stefanie Bremer, Patrice Carle, Ratana Chhun, Bruno Christophe, Valerio Cipolla, Thibault Damour, Pascale Danto, Hansjoerg Dittus, Pierre Fayet, Bernard Foulon, Claude Gageant, Pierre-Yves…

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© J. Catal.
News no.: 043 | MAPEX Research Highlights|

Quantitative determination of residual silver distribution in nanoporous gold and its influence on structure and catalytic performance

Christoph Mahr, Paromita Kundu, Anastasia Lackmann, Daniele Zanaga, Karsten Thiel, Marco Schowalter, Martin Schwan, Sara Bals, Arne Wittstock and Andreas Rosenauer.

Journal of Catalysis (2017) 352, 52–58.

https://doi.org/10.1016/j.jcat.2017.05.002

Large efforts have been made trying to understand…

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© CIRP Ann. Manuf. Technol.
News no.: 042 | MAPEX Research Highlights|

Microbial-based metalworking fluids in milling operations

Daniel Meyer, Marvin Redetzky and Ekkard Brinksmeier.

CIRP Annals - Manufacturing Technology (2017) 66, 129–132.

https://doi.org/10.1016/j.cirp.2017.04.019

Most commercial metalworking fluids (MWFs), as applied in cutting operations contain mineral-oil. Colonization of water-based MWFs…

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© J. Catal.
News no.: 041 | MAPEX Research Highlights|

A comparative study of alcohol oxidation over nanoporous gold in gas and liquid phase

Anastasia Lackmann, Christoph Mahr, Marco Schowalter, Lisa Fitzek, Jörg Weissmüller, Andreas Rosenauer and Arne Wittstock.

Journal of Catalysis (2017) 353, 99–106.

https://doi.org/10.1016/j.jcat.2017.07.008

The aerobic oxidation of methanol and ethanol in liquid phase is investigated using…

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© J. Solid State Chem.
News no.: 040 | MAPEX Research Highlights|

Structural and spectroscopic comparison between polycrystalline, nanocrystalline and quantum dot visible light photo-catalyst Bi2WO6

Michael Teck, M. Mangir Murshed, Marco Schowalter, Niels Lefeld, Henrike K. Grossmann, Tim Grieb, Thomas Hartmann, Lars Robben, Andreas Rosenauer, Lutz Mädler and Thorsten M. Gesing.

Journal of Solid State Chemistry (2017) 254, 82–89.

http://dx.doi.org/10.1016/j.jssc.2017.07.013

The structural…

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© Nanoscale
News no.: 039 | MAPEX Research Highlights|

The cubic-to-hexagonal phase transition of cerium oxide particles: dynamics and structure

Jan Höcker, Jon-Olaf Krisponeit, Thomas Schmidt, Jens Falta and Jan Ingo Flege.

Nanoscale (2017) 9, 9352-9358

http://dx.doi.org/10.1039/C6NR09760J

Cerium oxide is often applied in today's catalysts due to its remarkable oxygen storage capacity. The changes in stoichiometry during reaction are…

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© J. Org. Chem.
News no.: 038 | MAPEX Research Highlights|

Insight into the Mechanism of Reversible Ring-Opening of 1,3‑Benzoxazine with Thiols

Tobias Urbaniak, Marc Soto, Manuel Liebeke and Katharina Koschek.

Journal of Organic Chemistry (2017) 82, 4050−4055.

http://dx.doi.org/10.1021/acs.joc.6b02727

The reversible ring-opening addition and fragmentation reaction of p-cresol-based N-phenylbenzoxazine with aliphatic and aromatic thiols…

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© Anal. Chem.
News no.: 037 | MAPEX Research Highlights|

Simultaneous Acquisition of the Polarized and Depolarized Raman Signal with a Single Detector

Johannes Kiefer.

Analytical Chemistry (2017) 89 (11), 5725-5728

http://dx.doi.org/10.1021/acs.analchem.7b01106

Polarization-resolved Raman spectroscopy provides much more information than its conventional counterpart. However, it usually either requires a complicated setup with two spectrographs…

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