Article
Materials Science, Multidisciplinary
Gulsum Ersu, Yigit Sozen, Estrella Sanchez-Viso, Sruthi Kuriakose, Beatriz H. Juarez, Federico J. Mompean, Mar Garcia-Hernandez, Lea Visscher, Alvaro J. Magdaleno, Ferry Prins, Abdullah M. Al-Enizi, Ayman Nafady, Carmen Munuera, Joshua O. Island, Andres Castellanos-Gomez
Summary: The use of low-cost benchtop plotters combined with refillable writing pens and markers has been studied as an effective method to print nanomaterial-based inks on paper substrates. The approach is robust and precise, allowing for the printing of various solution-processable nanomaterials with narrow pattern features. The study also illustrates the versatility of this printing platform by successfully printing a range of materials with different properties.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Multidisciplinary Sciences
Milan Vicentijevic, Milko Jaksic, Tomislav Suligoj
Summary: With the increasing number of qubits, the future quantum devices are expected to have larger size. In this study, a single board diamond detector/preamplifier implantation system was developed to test different implantation sites. By modifying the design and introducing lateral electric field, the area of the implantation site was increased without compromising detection uniformity.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Rachel Langenbacher, Januka Budhathoki-Uprety, Prakrit Jena, Daniel Roxbury, Jason Streit, Ming Zheng, Daniel A. Heller
Summary: Applications of single-walled carbon nanotubes in bioimaging and biosensing have been limited by difficulties in preparing single-chirality nanotubes with desired functionalities. Researchers developed subcellular SWCNT imaging probes and explored internanotube FRET in live cells. This work suggests the potential use of single-chirality carbon nanotubes in biomedical research.
Article
Nanoscience & Nanotechnology
Xiaohui Xu, Zachariah O. Martin, Michael Titze, Yongqiang Wang, Demid Sychev, Jacob Henshaw, Alexei S. Lagutchev, Han Htoon, Edward S. Bielejec, Simeon I. Bogdanov, Vladimir M. Shalaev, Alexandra Boltasseva
Summary: Diamond color centers, particularly the negatively charged silicon vacancy (SiV-) center, have been intensively studied for their potential applications in quantum information technologies, biological imaging, and sensing. In this study, we successfully created single SiV- centers in nanodiamonds through ion implantation, exhibiting stable high-purity single-photon emission with narrow linewidths, offering new possibilities for quantum photonics, sensing, and biomedicine.
Article
Materials Science, Multidisciplinary
Yuichiro Kurokawa, Keisuke Yamada, Hiromi Yuasa
Summary: In this study, a flexible spin Seebeck thermopile device was fabricated using inkjet printing with Fe3O4 and Ag nanoparticle ink. The saturated spin Seebeck voltage of the device was found to increase with the number of spin Seebeck generators. The results indicate that inkjet printing holds great potential in the fabrication of spin Seebeck thermopile devices and flexible spintronic devices.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Multidisciplinary Sciences
Harry Felton, Robert Hughes, Andrea Diaz-Gaxiola
Summary: This study presents a simple and cost-effective method for rapid prototyping of PDMS microfluidic devices using 3D-printed interconnecting microchannel scaffolds. It enables low-cost mass production and customization of microfluidic systems, lowering the barrier for research and education in microfluidics. The technique allows for efficient operation within typical working pressures of commercial microfluidic devices and holds potential for affordable lab-on-a-chip diagnostic technology worldwide.
Article
Astronomy & Astrophysics
Adrian Dumitru, Risto Paatelainen
Summary: The light-front wave function of a proton and the color charge density correlator were calculated, revealing the presence of soft and collinear singularities. Despite the singularities, the correlator was shown to satisfy the Ward identity and be independent of the renormalization scale when accurate gluon emission and absorption vertices were employed. These findings provide important initial conditions for the Balitsky-Kovchegov evolution of the dipole scattering matrix.
Article
Chemistry, Physical
Alessio J. Sprockel, Mohd A. Khan, Mariska de Ruiter, Meyer T. Alting, Katherine A. Macmillan, Martin F. Haase
Summary: This research paper enhances the understanding of nanoparticle functionalization and provides guidance for future bijel synthesis approaches. A novel continuous flow method is developed to rapidly synthesize and analyze bijels formed via solvent transfer induced phase separation (STrIPS). The study shows that bijels with nearly uniform, sub-micrometer channels can be obtained by regulating the particle functionalization with a positively charged surfactant.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Multidisciplinary Sciences
Guy Coleman, William Salter, Michael Walsh
Summary: The use of a fallow phase is crucial in maximizing crop yield potential in moisture limited agricultural environments, and OpenWeedLocator (OWL) offers an accessible and cost-effective solution for detecting fallow weeds.
SCIENTIFIC REPORTS
(2022)
Article
Optics
You Sin Tan, Hao Wang, Hongtao Wang, Chengfeng Pan, Joel K. W. Yang
Summary: The field of metasurface research has experienced rapid development in the past decade. Electron-beam lithography (EBL) is commonly used for rapid prototyping of metasurfaces, but it often faces challenges with low throughput. In this study, we propose the use of a chemically amplified resist, SU-8 with EBL, for rapid prototyping of low-index metasurfaces. By demonstrating the fabrication of an all-dielectric multilevel security print using SU-8 grating on silicon, we show that SU-8 EBL resist is a promising candidate for rapid prototyping of metasurface designs. Our findings can contribute to increasing the EBL patterning speed for various devices and structures.
PHOTONICS RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Rui Wang, Xiaoyang Zhu, Luanfa Sun, Shuai Shang, Hongke Li, Wensong Ge, Hongbo Lan
Summary: A novel flexible strain sensor with high sensitivity and transparency was developed by filling a multiwalled carbon nanotube solution into polydimethylsiloxane channel films. The fabricated sensor showed superior gauge factors, good stability, and durability for monitoring various human movements.
Article
Nanoscience & Nanotechnology
Fengsong Qian, Jun Deng, Yibo Dong, Chen Xu, Liangchen Hu, Guosheng Fu, Pengying Chang, Yiyang Xie, Jie Sun
Summary: This study introduces a method for growing high-quality large-area graphene at low temperatures. By controlling the chamber pressure and hydrogen content, a uniform graphene film is successfully obtained. Additionally, a transfer-free growth technique is proposed, demonstrating a graphene transistor array with good performance consistency.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
Yue Su, Zhaoxin Geng, Weihao Fang, Xiaoqing Lv, Shicai Wang, Zhengtai Ma, Weihua Pei
Summary: The double-layer self-priming nanoimprint technology enables the fabrication of ordered metal nanostructures on large soft and hard substrates without the need for expensive instruments. It allows for the patterning of different nanostructures and materials, providing a programmable way to adjust the width and height of metal through photoresist thickness and developing conditions. This method can be applied in poor conditions without equipment, reducing the cost of instruments and molds.
Article
Green & Sustainable Science & Technology
Bhaumik Modi, Anurag Mudgal, Bansi D. Raja, Vivek Patel
Summary: This article presents a design methodology and test results of a small-scale single effect LiBr/water absorption refrigeration system with a capacity of 1.5 Ton. The experiments show that the system achieves a maximum COP of 0.35 at a generator temperature of 92C, and increasing the evaporator temperature leads to an increase in the cooling load. The break-even point for this small-scale absorption refrigeration system is determined to be 4.5 years, making it an economically viable option.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Multidisciplinary
Chenyi Cui, Yafei Cao, Baojin Qi, Jinjia Wei, Jia Yuan, Ya Wang
Summary: A low-cost, facile method for preparing superhydrophobic surfaces on aluminum alloy was proposed, achieving excellent wettability results. The surfaces showed good thermal and chemical stability, along with excellent repairability, as well as self-cleaning, anti-fogging, and anti-frosting applications. This study provides a promising approach for practical applications of superhydrophobic surfaces with improved properties and cost-effectiveness.
Article
Biochemistry & Molecular Biology
Martin Peng, Dominik L. Siebert, Martin K. M. Engqvist, Christof M. Niemeyer, Kersten S. Rabe
Summary: A novel thermostable benzaldehyde lyase ReBAL was discovered, showing structural differences from PfBAL but with higher thermostability and different activity in rational design-generated variants. Using the most stable variant, (R)-benzoin was successfully synthesized, providing new insights for the production of alpha-hydroxy ketones and APIs.
Article
Chemistry, Multidisciplinary
Raphael Greifenstein, Tim Ballweg, Tawheed Hashem, Eric Gottwald, David Achauer, Frank Kirschhoefer, Michael Nusser, Gerald Brenner-Weiss, Elaheh Sedghamiz, Wolfgang Wenzel, Esther Mittmann, Kersten S. Rabe, Christof M. Niemeyer, Matthias Franzreb, Christof Woell
Summary: We have demonstrated a MOF-based continuous flow enzyme reactor system that allows efficient and stable catalysis in organic solvents. The stability and productivity of the enzyme were significantly improved under aqueous conditions, without the need for additional functionalization, making the fabrication process time- and cost-efficient using label-free enzymes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Biotechnology & Applied Microbiology
Edina Klein, Janek Weiler, Michael Wagner, Minja Celikic, Christof M. Niemeyer, Harald Horn, Johannes Gescher
Summary: Aerobic granular sludge has become an increasingly popular method for wastewater treatment due to its ability to remove organic carbon, nitrogen, and phosphorus simultaneously. However, analyzing the processes and microbial population within the granules is challenging due to their microscale. In this study, a small-scale model system for aerobic granular sludge was introduced using a machine-assisted microfluidic cultivation platform. With this setup, it was possible to enrich specific microorganisms and investigate the influence of process parameters on wastewater treatment systems.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Sabrina Gallus, Esther Mittmann, Kersten S. Rabe
Summary: Comparing different membrane anchor motifs for surface display of a protein is crucial, and using a modular display system allows for easy assembly of anchors and passengers without the need for direct genetic fusion constructs in each case. Membrane anchors not only impact cell growth and membrane integrity, but also affect surface display capacity and biocatalytic activity. The strategy can be applied to other anchor and passenger combinations for various applications involving cell surface display.
Article
Instruments & Instrumentation
I Zoi, A. Ebrahimi, F. Feindt, E. Garutti, P. Gunnellini, A. Hinzmann, C. Niemeyer, D. Pitzl, J. Schwandt, G. Steinbruck
Summary: Pixelated silicon detectors are advanced technology designed to accurately measure the hit position of incoming particles in high rate and radiation environments. Operation requirements become extremely demanding at the High-Luminosity LHC due to multiple interactions and radiation, affecting sensor performance and resolution.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Nanoscience & Nanotechnology
Esther Mittmann, Frank Mickoleit, Denis S. Maier, Sabrina Y. Staebler, Marius A. Klein, Christof M. Niemeyer, Kersten S. Rabe, Dirk Schueler
Summary: This study demonstrates that using magnetosomes as an alternative for immobilizing biocatalysts can achieve high and stable conversion rates. By genetically engineering foreign proteins onto the surface of magnetosomes, stable functionality of the particles is achieved. Results show that SpyCatcher magnetosomes significantly expand the genetic toolbox for particle surface functionalization.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Carmen M. Dominguez, Miguel Garcia-Chame, Ulrike Mueller, Andreas Kraus, Klavdiya Gordiyenko, Ahmad Itani, Heiko Haschke, Peter Lanzerstorfer, Kersten S. Rabe, Christof M. Niemeyer
Summary: This article reports on the high dynamic interaction between streptavidin and DNA origami nanostructures, and provides detailed insights into this interaction using a novel high-speed atomic force microscope. The study also demonstrates a correlation between this interaction and cellular activation. This work is significant for further standardizing the use of DNA nanostructures in the study of biological processes.
Article
Nanoscience & Nanotechnology
Ahmed E. Zoheir, Laura Meisch, Marta Velaz Martin, Christoph Bickmann, Alexei Kiselev, Florian Lenk, Anne-Kristin Kaster, Kersten S. Rabe, Christof M. Niemeyer
Summary: This study presents the fabrication and application of a novel device for decoding microbial dark matter (MDM) in environmental microbiomes. The device, which is low-cost and easily scalable, allows for rapid colonization and enrichment of microorganisms. The results highlight the potential of this device for systematic study of MDM and cultivation of previously unculturable microorganisms.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Patrick Bitterwolf, Ahmed E. Zoheir, Julian Hertel, Sandra Kroll, Kersten S. Rabe, Christof M. Niemeyer
Summary: An intracellular approach to produce all-enzyme hydrogel particles has been developed, enabling efficient and sustainable biocatalysis. By using gene engineering, the researchers were able to simplify the construction of biocatalytic reactors and improve the stability and continuity of the reactions. This study provides a novel method for optimizing sustainable biocatalytic processes.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Engineering, Biomedical
Bingquan Yang, Klavdiya Gordiyenko, Andreas Schaefer, Seyed Mohammad Mahdi Dadfar, Wenwu Yang, Kristina Riehemann, Ravi Kumar, Christof M. Niemeyer, Michael Hirtz
Summary: In this study, three different surface coatings were compared to investigate their influence on DNA hybridization behavior. The structures and chemical properties of the coatings were characterized using various methods. The results showed that one of the coatings (PBAG) exhibited the highest hybridization efficiency, which has significant implications for the fabrication of DNA sensors.
ADVANCED NANOBIOMED RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Enrico Domenico Lemma, Roberta Tabone, Kai Richler, Ann-Kathrin Schneider, Claudia Bizzarri, Franco Weth, Christof M. Niemeyer, Martin Bastmeyer
Summary: Three-dimensional microscaffolds have shown great potential in mimicking physiological environments and simulating complex multicellular constructs in cell biology. However, controlling the precise localization of cells on microfabricated structures is still complex and limited to two-dimensional assays. This study presents a novel method using two-photon lithography and UV-mediated click reactions to selectively target different cell types to specific regions of a 3D microscaffold through DNA hybridization, enabling controlled cocultures of eukaryotic cells in 3D.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Leonie Schneider, Kersten S. Rabe, Carmen M. Dominguez, Christof M. Niemeyer
Summary: The immunological response of mast cells is regulated by the binding of antigens to IgE antibodies bound to the Fc epsilon RI receptor on the cell membrane surface. However, the organization and structural requirements of these antigen-antibody-receptor complexes at the nanometer scale are not fully understood. In this study, DNA nanostructures were used to generate multivalent artificial antigens, allowing for control over valency and nanoscale architecture. The results showed that the assembly of antibody-receptor complexes is critical for mast cell activation, and the affinity and nanoscale distance between the binding partners have less influence on the activation process.
Review
Chemistry, Physical
Giuseppe Prestopino, Andrea Orsini, Daniele Barettin, Giuseppe Arrabito, Bruno Pignataro, Pier Gianni Medaglia
Summary: The synthesis of crystals with a high surface-to-volume ratio is crucial for advanced electronic devices and sensors. Vertical nanowires aligned with the substrate surface are the easiest way to achieve this. Wet chemistry methods for growing aligned nanowires and functionalizing their surfaces with quantum dots have been studied, and the best results in terms of photoconversion efficiencies have been obtained through slow multi-step local drop casting. Among the materials used, ZnO shows the most promise due to its piezo-phototronic effects.
Review
Multidisciplinary Sciences
Loredana Leggio, Greta Paterno, Silvia Vivarelli, Aurelio Bonasera, Bruno Pignataro, Nunzio Iraci, Giuseppe Arrabito
Summary: Extracellular vesicles (EVs) play a crucial role in cell-to-cell communication and have potential applications in biomarker discovery and nanotherapeutics. However, current technical limitations hinder their use in clinics. This review explores state-of-the-art analytical technologies that are overcoming these limitations.
Article
Chemistry, Multidisciplinary
Leonie Schneider, Kersten S. Rabe, Carmen M. Dominguez, Christof M. Niemeyer
Summary: This study utilizes DNA nanostructures to create multivalent artificial antigens and investigates the spatial requirements and critical factors for mast cell activation. It reveals the importance of antigen-directed assembly of antibody-receptor complexes in triggering degranulation.
