Article
Infectious Diseases
Mathieu Nicolas, Bruno Beito, Marta Oliveira, Maria Tudela Martins, Bruno Gallas, Michele Salmain, Souhir Boujday, Vincent Humblot
Summary: This review summarizes the applications of antimicrobial peptides (AMPs) in preventing bacterial adhesion and biofilm formation, as well as the immobilization techniques of AMPs in biomedical applications. The progress towards clinical approval of AMPs in antibiotherapy is also discussed.
Review
Chemistry, Multidisciplinary
Anders Henriksson, Peter Neubauer, Mario Birkholz
Summary: In recent decades, alternative protocols have been developed to form bifunctional Si-C interlayers that directly bind to the silicon surface, providing more stability and reducing electric noise in biosensor devices. Despite their complexity and the need for an inert gas atmosphere, these innovative methods are predicted to expand the applications of future silicon-based biosensors.
ADVANCED MATERIALS INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Witold Jakubowski, Radomir Atraszkiewicz, Dorota Nowak, Damian Batory, Witold Szymanski, Anna Sobczyk-Guzenda, Lukasz Kaczmarek, Piotr Kula, Marian Clapa, Tomasz Warga, Malgorzata Czerniak-Reczulska
Summary: This study demonstrated the functionalization of graphene surface grown on liquid bimetallic matrices, using glutathione (GSH) as a peptide model to optimize process efficiency. The Folina-Ciocalteu method was used to assess the concentration of colored reaction products with peptide bonds. Various analyses such as Raman spectroscopy, SEM, and FTIR were employed to study surface morphology, graphene quality, and chemical structure after surface modification.
Article
Biophysics
Xiaokang Na, Lijuan Zhang, Chao Ren, Xianbing Xu, Ming Du, Jiangtao Zhou, Beiwei Zhu, Chao Wu
Summary: In this study, mineralization-stimulative and antibacterial networking nanostructures were formed by assembling amyloid-like aggregation of lactoferrin. These lactoferrin networks could be deposited on various implant materials, providing them with cell-proliferative, mineralization-stimulative, and antibacterial properties. The networks also exhibited inherent antimicrobial properties and synergistic antibacterial ability with surface-enriched amino acid residues, leading to disruption of bacterial biofilm formation and microbial death.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2022)
Article
Nanoscience & Nanotechnology
X. Na, X. Chen, X. Xu, M. Du, B. Zhu, T. Wang, C. Wu
Summary: In this study, a surface coating strategy was proposed to engineer a cell-proliferative, mineralization-stimulative, and antibacterial biosurface by directional seeding of lactoferrin at the solid-liquid interface. The biosurface showed enhanced biofunctions and favorable biocompatibility, promoting bone regeneration.
MATERIALS TODAY NANO
(2022)
Article
Chemistry, Applied
Yunjian Ling, Jie Luo, Yihua Ran, Yunjun Cao, Wugen Huang, Jun Cai, Zhi Liu, Wei-Xue Li, Fan Yang, Xinhe Bao
Summary: This study investigated the activation of CO and CO2 on ZnO surfaces, a typical non-reducible oxide and a major catalytic material, using ambient-pressure scanning tunneling microscopy (AP-STM), AP X-ray photoelectron spectroscopy (AP-XPS), and density functional theory (DFT) calculations. The results showed that enhanced physisorption and the concerted interaction of physisorbed molecules led to the formation of new adsorbate structures, facilitating the activation of CO and CO2 on ZnO. The study provided molecular insights into the fundamental chemistry and catalytic properties of ZnO surfaces under realistic reaction conditions.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Analytical
Ana L. Hernandez, Sidharam P. Pujari, Maria F. Laguna, Beatriz Santamaria, Han Zuilhof, Miguel Holgado
Summary: The immobilization process of bioreceptors is a bottleneck in the development of highly sensitive label-free biosensors. Traditional approaches are effective but not efficient, lacking reproducibility. A unique biofunctionalization protocol based on chemical surface modification through silane chemistry on SiO2 optical sensors was proposed, showcasing reproducible and stable characteristics for biosensing applications.
Review
Materials Science, Biomaterials
Lily Margareth Arrieta Payares, Lizeth Del Carmen Gutierrez Pua, Leonardo Antonio Di Mare Pareja, Soliani Carolina Paredes Mendez, Virginia Nathaly Paredes Mendez
Summary: Research on bone tissue regeneration and accelerated recovery processes has attracted increasing interest in the scientific community. Using natural materials to reduce biocompatibility issues is an important trend. Biofunctionalization processes have been proposed to promote osseointegration in implant materials, and microalgae, with their high protein content and bioactive properties, have been suggested as candidates for tissue regeneration applications. This paper reviews microalgae as a source of biofunctionalized materials focused on orthopedic applications.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Article
Chemistry, Physical
Carolyn L. Hartley, Jillian L. Dempsey
Summary: This study investigates defects on the surfaces of semiconductor quantum dots using redoxactive chemical probes and spectroscopic tools, revealing the impact of different sizes and reductant strengths on ligand displacement, as well as the conclusion that large quantum dots have more native disulfide defects.
CHEMISTRY OF MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Christina Behrens, Philipp Kauffmann, Nikolaus von Hahn, Uwe Schirmer, Klaus Liefeith, Henning Schliephake
Summary: The study successfully developed a multilayer coating on titanium surfaces for retarded release of rhBMP2, enhancing the osteogenic activity of implant surfaces without altering the surface morphology.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Engineering, Biomedical
Christina Behrens, Philipp Kauffmann, Nikolaus von Hahn, Ariane Giesecke, Uwe Schirmer, Klaus Liefeith, Henning Schliephake
Summary: The study aimed to establish a modular platform for dual growth factor delivery on titanium surfaces. Release characteristics of the growth factors varied depending on film architecture, and can be adjusted to enhance angiogenic or osteogenic function by modifying the multilayer films.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART A
(2022)
Article
Chemistry, Physical
Ali Hussain Motagamwala, James A. Dumesic
Summary: The paper examines the reaction kinetics of steady-state catalytic reactions on heterogeneous catalysts, utilizing a generalized two-step reaction scheme to derive expressions for surface coverages and validate their applicability through case studies.
JOURNAL OF CATALYSIS
(2021)
Article
Polymer Science
Barun K. Barick, Neta Shomrat, Uri Green, Zohar Katzman, Tamar Segal-Peretz
Summary: This study developed a nanofabrication method to create highly ordered oxide nanostructures on polymer substrates, with the entire process being carried out at low temperatures to prevent damage to the temperature-sensitive polymer and polymer/oxide interface. Additionally, challenges posed by polymer substrates in conventional nanofabrication processes were overcome, widening the possibilities of nanofabrication on polymers.
Review
Chemistry, Multidisciplinary
Juergen Reif
Summary: This article reviews the modification of solid surfaces through intense laser pulses and the dynamics of the relevant processes. The authors discuss weak interactions on dielectric materials, which result in local effects like electron and ion emission. They also explore the role of induced defects in the cumulative effect of incubation and the considerable energy dissipation leading to surface relaxation, ablation, and modification. The article concludes with a list of potential applications in the field of wettability.
Article
Chemistry, Multidisciplinary
Kaixing Chen, Ye Zeng, Xing Gao, Xiaorui Liu, Linna Zhu, Fei Wu
Summary: In this work, crown ethers containing various heteroatoms were used to modify the Pb2+ defects in perovskite films, resulting in improved efficiency and stability of perovskite solar cells. The crown ether-based semiconductors with multiple heteroatoms demonstrated stronger interaction with undercoordinated Pb2+ and effectively suppressed non-radiative recombination of charge carriers. The device treated with CDT-S achieved an efficiency of 23.05% and maintained 90.5% of initial efficiency after 1000 hours of storage under dark conditions. This study highlights the potential of crown ethers in enhancing the performance of perovskite solar cells.