Article
Biochemistry & Molecular Biology
Shin-Ping Lin, Stephanie Singajaya, Tsui-Yun Lo, Shella Permatasari Santoso, Hsien-Yi Hsu, Kuan-Chen Cheng
Summary: This study developed a novel porous additive-altered FBC by combining foaming BC production with different additives. The FBC samples showed higher reswelling rates and excellent cell adhesion and proliferation abilities for NIH-3T3 cells. Furthermore, the FBC provided a competitive scaffold for 3D cell culture in tissue engineering due to its porous structure and allowing cells to penetrate to deep layers.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Yiding Zhou, Mengze Zhu, Yuanyuan Sun, Yun Zhu, Shengmiao Zhang
Summary: Emulsion-templated porous polymers have received attention for their potential applications. Scaling up the emulsion-templated technique for industrial production remains a challenge, especially for systems using oil-in-water emulsion template. A water-in-water emulsion-templated technique is introduced to prepare porous hydrophilic polymers. This environmentally friendly and low-cost method avoids the need for large amounts of organic solvents and can be used for industrial-scale production.
Article
Chemistry, Multidisciplinary
Qi Li, Mayumi Hatakeyama, Takuya Kitaoka
Summary: This study presents a novel approach to fabricate aligned porous scaffolds for 3D cell cultures using Pickering emulsion-induced interface and freezing/lyophilization techniques. The resulting scaffolds exhibit highly porous and oriented structures, and show good biocompatibility for human liver cell culture.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Ceramics
Xiaojuan Lu, Mingyang Duan, Jing Li
Summary: Solid-state lithium-ion conductors have high grain-boundary resistance, but this study successfully reduced the resistance and improved the conductivity of LLTO by using bacterial cellulose as a template.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Paper & Wood
Isaac Y. Miranda-Valdez, Sebastian Coffeng, Yu Zhou, Leevi Viitanen, Xiang Hu, Luisa Jannuzzi, Antti Puisto, Mauri A. Kostiainen, Tero Makinen, Juha Koivisto, Mikko J. Alava
Summary: Foam-formed cellulose biocomposites with added organosolv lignin enhance the properties required for applications such as insulation, packaging, and cushioning. The addition of lignin increases Young's modulus, protects against bacterial growth, and improves surface hydrophobicity. The optimization of the foam composition offers a potential path for industrial-scale development.
Article
Materials Science, Multidisciplinary
L. Orgeas, S. Gupta, F. Martoia, P. J. J. Dumont
Summary: Ice-templated cellular materials made of cellulose nanocrystals or cellulose nanofibrils have unique physical properties but limited mechanical properties. By adjusting the content of nanofibers, the microstructure and mechanical properties of the foam can be improved.
MATERIALS & DESIGN
(2022)
Review
Chemistry, Multidisciplinary
Meghan E. Lamm, Kai Li, Ji Qian, Lu Wang, Nathalie Lavoine, Reagan Newman, Douglas J. Gardner, Teng Li, Liangbing Hu, Arthur J. Ragauskas, Halil Tekinalp, Vlastimil Kunc, Soydan Ozcan
Summary: The use of cellulose nanofibers in templating shows great promise in controlling the final properties of advanced functional materials, including mechanical strength, porosity, and others.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Annika E. Ketola, Wenzhe Song, Timo Lappalainen, Kristian Salminen, Janika Viitala, Tuomas Turpeinen, Arttu Miettinen, Koon-Yang Lee, Jukka A. Ketoja
Summary: This study investigates the formation of cellulose fiber materials suitable for various applications using aqueous foam as a carrier phase. The interaction between fibers and bubbles can alter the structural and mechanical properties of the materials. The study also explores the effects of different fibers and surfactants on the properties of the formed materials.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Physical
Dapeng Liu, Chaoji Chen, Yubing Zhou, Yinhua Bao, Ruiliu Wang, Yu Liu, Shuaiming He, Hao Huang, Clark Zhang, Bob Foster, Teng Li, Liangbing Hu
Summary: The global demand for plastic foam materials is high, but existing foam materials made of plastics take hundreds of years to degrade, causing environmental pollution issues. A degradable, recyclable, and cost-effective foam material based on 3D printed graphite-cellulose nanofibers has been developed as a sustainable alternative to commercial plastic foam materials.
Article
Biochemistry & Molecular Biology
Karolina Dydak, Adam Junka, Agata Dydak, Malwina Brozyna, Justyna Paleczny, Karol Fijalkowski, Grzegorz Kubielas, Olga Aniolek, Marzenna Bartoszewicz
Summary: This study compared the activity of commonly used antiseptic molecules against various bacterial and yeast strains, finding that chlorhexidine and polyhexanide performed the best in different experimental methods. Additionally, BC dressings chemisorbed with polyhexanide, octenidine, or povidone-iodine showed similar or greater antibiofilm activity compared to a control dressing containing silver molecules, indicating their high applicability in eradicating biofilm from chronic wounds.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Multidisciplinary
Hengfei Qin, Yifan Zhang, Jungang Jiang, Lili Wang, Mingyao Song, Ran Bi, Penghui Zhu, Feng Jiang
Summary: The dual ice-templating assembly (DITA) strategy can control the assembly of cellulose nanofibrils (CNF) into elastic aerogels with interconnected sub-micron fibers, exhibiting excellent superelastic behavior and multifunctional properties.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Applied
Hwarueon Lee, Sunga Kim, Sungchul Shin, Jinho Hyun
Summary: This study examines the 3D structuring of cellulose nanofiber foam-based ink and the transition of foam from insulator to conductor. The colloidal stability of the foam is crucial for producing a solid template for the synthesis of conducting polymers. Liquid foam ink is prepared by stirring a CNF suspension with an emulsifier, allowing for shear-thinning behavior and flexible design of structures through 3D printing. Conductive CNF foams are prepared via in situ polymerization on solid foam, with observed topological features and conductivity investigation.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Physical
Maria A. Ustimova, Yury V. Fedorov, Vladimir B. Tsvetkov, Sergey D. Tokarev, Nikolai A. Shepel, Olga A. Fedorova
Summary: This study investigated the interaction between three different bis(styryl)pyridinium dyes and DNA, revealing that dyes with NMe2 substituents exhibited higher fluorescence enhancement upon binding. The interaction was found to occur through the formation of aggregates in the minor groove of DNA, with different chiralities observed depending on the presence of OMe or NMe2 groups in the dyes.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2021)
Review
Biotechnology & Applied Microbiology
Cecilia Andreu, Marcelli del Olmo
Summary: Many microorganisms can form biofilms under adverse conditions, which are complex structures composed of cells from different species embedded in the extracellular matrix (ECM). The ECM, consisting of proteins, carbohydrates, lipids, and nucleic acids, serves various functions such as adhesion, communication, nutrient distribution, and community resistance. This review focuses on halotolerant and osmotolerant yeast biofilms, their formation, and their potential biotechnological applications.
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
(2023)
Article
Food Science & Technology
Xiaoyan Zhou, Xiaoli Liu, Qi Wang, Guangming Lin, Huanbin Yang, Dawei Yu, Steve W. Cui, Wenshui Xia
Summary: In this study, biodegradable films were successfully prepared by incorporating tea polyphenols into chitosan-bacterial cellulose matrix. The effects of different concentrations of tea polyphenols on the properties of the films were evaluated. The results showed that increasing the concentration of tea polyphenols enhanced the water solubility, oxygen barrier property, antioxidant and antimicrobial activities of the films, while reducing the thermal stability and moisture content. The optimal film with 8% tea polyphenols exhibited the highest elongation at break, contact angle, and water vapor barrier performance.
FOOD PACKAGING AND SHELF LIFE
(2022)
Article
Surgery
Emily Lenart, Dina Filiberto, Peter Fischer, Isaac Howley, Saskya Byerly
Summary: Isolated facial fractures (IFF) are often overtriaged and can be managed without surgery. However, they are frequently transferred between hospitals, suggesting the potential for outpatient follow-up or telehealth consultation to decrease resource utilization.
AMERICAN JOURNAL OF SURGERY
(2023)
Article
Chemistry, Physical
Kim Mishra, Nico Kummer, Jotam Bergfreund, Fabian Kampf, Pascal Bertsch, Robin Pauer, Gustav Nystrom, Peter Fischer, Erich J. Windhab
Summary: The crystallization behavior of lipids, especially triacylglycerols, has been studied using various microscopy techniques. It has been found that the shear rate during crystallization affects the structure and growth of crystalline particles. The aggregation of crystallites and the formation of clusters are rate limiting steps in the process. The findings of this study have potential implications in adipose tissue regeneration, microbial lipid crystalline network formation, and energy-efficient chocolate production.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Diego Milian, Nak Heon Choi, Misgina Tilahun Tsehaye, Peter Fischer, Jens Tuebke, Cristina Iojoiu, Denis C. D. Roux, Nadia El Kissi
Summary: This study presents rheometry as an optimization tool to increase discharge performance of a zinc slurry-air redox flow battery. By investigating the incorporation of electrode suspension slurry to metal-air batteries, the optimal concentration of polyacrylic acid (PAA) for the zinc slurry system was determined, leading to improved performance in the battery.
JOURNAL OF POWER SOURCES
(2023)
Article
Multidisciplinary Sciences
Hamed Almohammadi, Sandra Martinek, Ye Yuan, Peter Fischer, Raffaele Mezzenga
Summary: In the process of nucleation and growth, thermodynamics and kinetics play crucial roles in determining the composition, shape, structure and physical properties of heterogeneous colloidal systems. By selectively choosing colloidal systems and controlling phase separation, we can separate the effects of kinetics from thermodynamics and discover new physical phenomena. This approach enables the on-demand fabrication of multicomponent heterogeneous liquid crystals and opens up new research directions in multicomponent structured fluids.
NATURE COMMUNICATIONS
(2023)
Article
Anesthesiology
Stephan Felder, Peter Fischer, Klaus Boehler, Stefan Angermair, Sascha Treskatsch, Wilfried Witte
Summary: For many years, organ transplantation from postmortem donors has been a crucial therapy for patients with irreversible organ failure. However, in Germany, there has been a disparity between the number of organ donations and the number of patients on the waiting list. The management of anesthesia during multiple organ harvesting from postmortem donors is challenging due to various factors, including limited practical expertise, complex physiological changes, and the absence of guidelines. This paper reviews existing literature to determine evidence-based recommendations for anesthesia management in this context.
ANASTHESIOLOGIE INTENSIVMEDIZIN NOTFALLMEDIZIN SCHMERZTHERAPIE
(2023)
Article
Biochemistry & Molecular Biology
Lea Andree, Pascal Bertsch, Rong Wang, Malin Becker, Jeroen Leijten, Peter Fischer, Fang Yang, Sander C. G. Leeuwenburgh
Summary: We developed a versatile hydrogel platform using modular building blocks, allowing for the design of customized hydrogels with specific physical architecture and mechanical properties. By assembling different combinations of gelatin methacryloyl (Gel-MA) and gelatin nanoparticles, we demonstrated the versatility of the platform. The incorporation of particles resulted in softer hydrogels with enhanced stress relaxation, and the stiffness of the hydrogels influenced cell behavior.
Article
Chemistry, Applied
Pascal Bertsch, Lukas Bocker, Ann-Sophie Palm, Jotam Bergfreund, Peter Fischer, Alexander Mathys
Summary: Proteins from microalgae have the potential to replace animal-based proteins in the human diet or as functional ingredients. Understanding the effect of physicochemical conditions on their adsorption behavior and interfacial network formation is crucial.
FOOD HYDROCOLLOIDS
(2023)
Review
Surgery
Lynley Matthews, Emma Kelly, Andrew Fleming, Saskya Byerly, Peter Fischer, Ian Molyneaux, Andrew Kerwin, Isaac Howley
Summary: This review evaluates the research on outcomes based on field triage to a Level 1 trauma center (L1TC) compared to other levels of hospitals and non-trauma centers. The findings show that the survival benefit of L1TC care is largest for patients with the most severe injuries.
JOURNAL OF SURGICAL RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Tobias Lojewski, Mohamed F. Elhanoty, Loic Le Guyader, Oscar Granaes, Naman Agarwal, Christine Boeglin, Robert Carley, Andrea Castoldi, Christian David, Carsten Deiter, Florian Doering, RobinY Engel, Florian Erdinger, Hans Fangohr, Carlo Fiorini, Peter Fischer, Natalia Gerasimova, Rafael Gort, Frank deGroot, Karsten Hansen, Steffen Hauf, David Hickin, Manuel Izquierdo, Benjamin E. Van Kuiken, Yaroslav Kvashnin, Charles-Henri Lambert, David Lomidze, Stefano Maffessanti, Laurent Mercadier, Giuseppe Mercurio, Piter S. Miedema, Katharina Ollefs, Matthias Pace, Matteo Porro, Javad Rezvani, Benedikt Roesner, Nico Rothenbach, Andrey Samartsev, Andreas Scherz, Justina Schlappa, Christian Stamm, Martin Teichmann, Patrik Thunstrom, Monica Turcato, Alexander Yaroslavtsev, Jun Zhu, Martin Beye, Heiko Wende, Uwe Bovensiepen, Olle Eriksson, Andrea Eschenlohr
Summary: By combining femtosecond time-resolved X-ray absorption spectroscopy with ab initio time-dependent density functional theory, we analyze the electronic structure of fcc Ni on a femtosecond time scale. We observe transient broadening and energy shifts in the absorption spectra, which are explained by electron repopulation and correlation-induced modifications of the electronic structure, accounting for the local Coulomb interaction.
MATERIALS RESEARCH LETTERS
(2023)
Article
Chemistry, Physical
Nico Kummer, Caroline E. Giacomin, Peter Fischer, Silvia Campioni, Gustav Nystrom
Summary: Amyloid fibrils from inexpensive food proteins and nanocellulose have diverse applications and their hybrid materials have improved mechanical properties due to electrostatic interactions. These interactions increase the elasticity of the amyloid network by cross-linking individual fibrils. The combination of nanocellulose morphology contributes differently to the elasticity, with cellulose nanocrystals inducing bundling and network formation, and cellulose nanofibrils forming a second network. The gained knowledge on colloidal interactions provides a basis for designing functional biohybrid materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Caroline E. Giacomin, Rebecca Yun Chen, Erwin Hack, Peter Fischer
Summary: This study investigates the formation and properties of tea film, also known as tea scum, on the surface of tea infusions. The composition of water, tea varieties, and tea additives are found to impact the strength and structure of the film. Green tea forms more visible layers than black tea in soft and moderate water, while black tea demonstrates greater surface strength. In hard water, green tea has greater surface strength than black tea. Rooibos tea does not form visible layers or strengthen the surface. Adding β-casein, a protein found in milk, increases the resilience of black tea film.
Article
Biochemical Research Methods
Xiaobao Cao, Tomas Buryska, Tianjin Yang, Jing Wang, Peter Fischer, Aaron Streets, Stavros Stavrakis, Andrew deMello
Summary: Droplet-based microfluidic systems have become popular in high throughput screening due to their flexibility, high-throughput capabilities, and efficient processing of small volumes. However, the challenges of performing customized operations on user-defined droplets have limited their use in complex screening applications. To address this, the integration of droplet- and valve-based microfluidic technologies provides a solution for controlling droplet manipulations while maintaining analytical throughput. This article presents a microfluidic platform that combines microvalve technology with droplet-based compartmentalization to achieve programmable fluid handling. The platform allows for the execution of user-defined reaction protocols within storage chambers by merging droplets containing specified reagents.
Meeting Abstract
Critical Care Medicine
Allison McLeod, Alison Stonecipher, Whitney Holmes, Saskya Byerly, Dina Filiberto, Peter Fischer, Roland Dickerson
CRITICAL CARE MEDICINE
(2023)
Article
Chemistry, Multidisciplinary
Ashutosh Sinha, Nico Kummer, Tingting Wu, Kevin J. De France, Dorothea Pinotsi, Janine L. Thoma, Peter Fischer, Silvia Campioni, Gustav Nystrom
Summary: Proteins tend to coat solid surfaces and form amyloid-like structures upon exposure. In this research, aerogels created from TEMPO-oxidized cellulose nanofibers are used as bio-based templates to induce and accelerate protein aggregation, showing the significance of this study.
Article
Chemistry, Multidisciplinary
Nico Kummer, Luc Huguenin-Elie, Adrian Zeller, Yashoda Chandorkar, Jean Schoeller, Flavia Zuber, Qun Ren, Ashutosh Sinha, Kevin De France, Peter Fischer, Silvia Campioni, Gustav Nystrom
Summary: Amyloid fibrils made from hen egg white lysozyme can be used to create 2D foam films with broad-spectrum antimicrobial properties, offering a potential alternative to small-molecule antibiotics. These films can be deposited on various substrates, creating a homogenous coating layer with antimicrobial effects against clinically relevant pathogens. This method presents a new approach for continuous production and could be used in the biomedical sector for wound dressings.
NANOSCALE ADVANCES
(2023)