Article
Microbiology
Atefeh Rajaei, Hannah M. Rowe, Melody N. Neely
Summary: A robust cell envelope is crucial for pathogens to protect themselves from the immune defense of their host. In this study, the role of LytR-CpsA-Psr (LCP) family proteins in the synthesis and assembly of the cell envelope in Streptococcus agalactiae (GBS) was investigated. The results showed that the absence of Psr led to decreased growth rate, viability, consistent cocci morphology, and cell wall integrity, as well as increased susceptibility to penicillin and attenuation in virulence. These findings indicate that Psr, along with CpsA, plays a partially redundant role in supporting GBS cell wall integrity.
Article
Fisheries
Ai-Guo Huang, Wei-Hao He, Lin-Jun Su, Fa-Li Zhang, Ying-Hui Wang
Summary: In the study, GBS-specific nanobody Nb01 was obtained through screening and found to effectively inhibit GBS infection in zebrafish, reducing GBS copy numbers and increasing survival rate, highlighting the potential therapeutic activity of Nbs against GBS in fish.
Article
Microbiology
Clemence Beauruelle, Ludovic Treluyer, Adeline Pastuszka, Thierry Cochard, Clement Lier, Laurent Mereghetti, Philippe Glaser, Claire Poyart, Philippe Lanotte
Summary: In this study, the relevance of a CRISPR-based genotyping tool for Streptococcus agalactiae typing was explored and compared to current molecular methods. Two CRISPR marker schemes were developed, showing high discriminatory power in separating isolates. The method has the advantage of being correlated with MLST and possessing high discriminatory power, with reduced time and cost compared to MLST. This approach could potentially become a reference method for GBS typing.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Nina M. van Sorge, Daniel A. Bonsor, Liwen Deng, Erik Lindahl, Verena Schmitt, Mykola Lyndin, Alexej Schmidt, Olof R. Nilsson, Jaime Brizuela, Elena Boero, Eric J. Sundberg, Jos A. G. van Strijp, Kelly S. Doran, Bernhard B. Singer, Gunnar Lindahl, Alex J. McCarthy
Summary: Streptococcus agalactiae, also known as group B Streptococcus (GBS), is a major cause of neonatal sepsis in humans. In a recent study, it was found that the surface-expressed beta protein of GBS binds to human CEACAM1 and CEACAM5 receptors, with the crystal structure revealing a novel IgI3 fold. This discovery suggests a potentially widely applicable mechanism for bacteria to target CEACAMs.
Review
Biochemistry & Molecular Biology
Susanne Dora, Oliver M. Terrett, Clara Sanchez-Rodriguez
Summary: The apoplast is a continuous compartment in plants that connects cells between tissues and organs, serving as an important site for interaction between plants and microbes. The plant cell wall, occupying most of the apoplast, consists of polysaccharides, proteins, and ions. It acts as a physical barrier and nutrient source for the microbe, while also playing crucial roles in interkingdom detection, recognition, and response to other organisms. Both plant and microbe modify the cell wall and its environment to benefit from the interaction, and understanding these dynamic changes is essential for comprehending plant-microbe interactions.
Article
Genetics & Heredity
Elvina Parlindungan, Brian McDonnell, Gabriele A. Lugli, Marco Ventura, Douwe van Sinderen, Jennifer Mahony
Summary: This study evaluated the genomic diversity of S. thermophilus strains isolated from unpasteurized dairy products and identified novel eps genotypes and variabilities in rgp gene clusters. The results also showed a positive correlation between rgp genotype diversity and phage diversity. Phageome analysis serves as a sensitive marker for studying the dominant microbiota involved in the fermentation process.
MICROBIAL GENOMICS
(2022)
Article
Immunology
Jacky Lu, Miriam A. Guevara, Jamisha D. Francis, Sabrina K. Spicer, Rebecca E. Moore, Schuyler A. Chambers, Kelly M. Craft, Shannon D. Manning, Steven D. Townsend, Jennifer A. Gaddy
Summary: This study demonstrates that lactoferrin possesses antimicrobial and antibiofilm properties against a wide range of GBS isolates, with maternally isolated colonizing strains being the most susceptible.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2021)
Article
Fisheries
Huiling Hu, Hongli Xia, Luxi Xu, Zhiwen Wang, Yishan Lu, Jichang Jian
Summary: This study explores the role of CD36 in the antimicrobial immunity of Nile tilapia. The results show that CD36 is conserved among species and is distributed in the cell membrane. CD36 gene is expressed in all tissues of healthy tilapia, with higher expression in immune tissues. Overexpression of CD36 reduces bacterial load and protects immune tissues from injury, and it also decreases pro-inflammatory factors and increases anti-inflammatory factors. CD36 may play a vital role in pathogen control and immune response in tilapia.
Article
Food Science & Technology
Zheng-Qi Wang, Chen-Xi Zhu, An-Ran Dai, Lei Chen, Cui-Ping You, Bo-Bo Zhang
Summary: This study isolated and purified three polysaccharides from the cell wall of Antrodia cinnamomea mycelia, each with different structures and antioxidant activities. Despite variations in sugar composition and glycosidic bonds, all polysaccharides had molecular weights over 10(7) g/mol and exhibited a spherical conformation in NaNO3 solution. The AC-MCA and AC-MHA showed stronger in vitro antioxidant activity compared to AC-MHW, possibly due to their higher content of 1,3-glucosyl residues.
Article
Microbiology
Wanna Sirimanapong, Nguyen Ngoc Phuoc, Chiara Crestani, Swaine Chen, Ruth N. Zadoks
Summary: Group B Streptococcus (GBS) is a major pathogen in humans and aquatic species, and the ST283 sequence type has been identified as the cause of severe foodborne GBS disease in healthy adults in Southeast Asia. The distribution of potentially human-pathogenic GBS in aquaculture species is poorly known, and further research is needed.
Article
Fisheries
Defeng Zhang, Zhigang Liu, Yan Ren, Yinggang Wang, Houjun Pan, Dingwu Liang, Weilie Bei, Ouqin Chang, Qing Wang, Cunbin Shi
Summary: This study investigated the phenotype and genotype of GBS strains in tilapia in China from 2006 to 2020, revealing high genetic diversity and an increase in virulence-related genes in prevalent strains in recent years.
Article
Medicine, General & Internal
Pakpoom Phoompoung, Nantaporn Pirogard, Amornrut Leelaporn, Nasikarn Angkasekwinai
Summary: Invasive Group B streptococcal (iGBS) diseases are not uncommon in non-pregnant adults, particularly among older adults and those with diabetes. The study found that two-thirds of iGBS patients had bacteraemia, and the overall 30-day mortality rate was 11%.
ANNALS OF MEDICINE
(2021)
Editorial Material
Microbiology
Hajar Yaakoub, Jean-Paul Latge, Nicolas Papon
Summary: The human opportunistic pathogen Aspergillus fumigatus is known for its adaptable cell wall, which allows it to remodel its components to resist antifungal drugs. Previous studies have shown that sugar metabolism plays a specific role in regulating the synthesis of cell wall polymers. In-depth research into central sugar metabolism may uncover unexpected fundamental aspects of cell wall construction, as demonstrated by the study on the phosphoglucose isomerase of A. fumigatus conducted by Zhou et al. (mBio 13:e01426-22, 2022).
Article
Immunology
Lamar S. Thomas, Nicholas A. Faiola, Emily Canessa, Yetrib Hathout, Laura C. Cook
Summary: This study evaluates the prevalence and relevance of BvaP repeated domains in GBS vaginal colonization. In silico analysis reveals that the number of repeats in the BvaP protein is not associated with GBS serotype, isolation site, or host. Experimental findings suggest that a smaller number of repeats leads to decreased bacterial chain length, but adherence to vaginal epithelial cells can be complemented using BvaP with different numbers of repeats. Further research will focus on understanding the host immune response to BvaP in vivo and the dependence of vaginal carriage or host response on the BvaP repeated domains.
INFECTION AND IMMUNITY
(2023)
Article
Microbiology
Jingxian Liu, Feng Chen, Hongyan Guan, Jiajia Yu, Jing Yu, Jing Zhao, Ying Liu, Lisong Shen
Summary: Streptococcus agalactiae, especially the Ib/CC12 strain, poses a significant threat to young infants with its high mortality rate and multidrug resistance. Prevention and control measures for this infection should be emphasized.
FRONTIERS IN MICROBIOLOGY
(2021)
Review
Chemistry, Physical
Sofiane El-Kirat-Chatel, Audrey Beaussart, Marion Mathelie-Guinlet, Yves F. Dufrene
CURRENT OPINION IN COLLOID & INTERFACE SCIENCE
(2020)
Article
Biotechnology & Applied Microbiology
L. Schwendimann, D. Merda, T. Berger, S. Denayer, C. Feraudet Tarisse, A. J. Klaui, S. Messio, M. Y. Mistou, Y. Nia, J. A. Hennekinne, H. U. Graber
Summary: This study investigated the relationship between the vSa beta type, clonal complex (CC), and the production of enterotoxins SEG and SEI by Staphylococcus aureus strains. It was found that the amount of SEG and SEI produced correlated with the vSa beta type and CC of a strain, and the whole-genome sequencing data could be used to predict enterotoxin production and source of an outbreak strain. These results show promising indications for better understanding the role SEG and SEI play in foodborne outbreaks caused by S. aureus.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Chemistry, Physical
Audrey Beaussart, Chloe Retourney, Fabienne Quiles, Raphael Dos Santos Morais, Claire Gaiani, Henri-Pierre Fierobe, Sofiane El-Kirat-Chatel
Summary: This study utilized the high affinity ligand-receptor interaction between biotin and streptavidin to graft lysozyme onto surfaces, demonstrating enhanced antibacterial efficiency. The results suggest that bio-molecular interactions are promising for sustainable grafting of antimicrobial agents on surfaces.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Editorial Material
Infectious Diseases
Catarina Magalhaes, Margarida Lima, Patrick Trieu-Cuot, Paula Ferreira
Summary: Sir Alexander Fleming warned against overuse of antibiotics in 1945, and evidence has shown that bacteria can become resistant to almost any available molecule. Prescribing fewer antibiotics and shorter treatment duration can be as effective as longer regimens, reducing selective pressure on microorganisms and delaying the emergence of resistant clones. Further studies are needed to identify optimal antibiotic therapy duration for common infections and clinical biomarkers for guiding antibiotic treatment.
LANCET INFECTIOUS DISEASES
(2021)
Article
Microbiology
Alexis Proutiere, Laurence du Merle, Bruno Perichon, Hugo Varet, Myriam Gominet, Patrick Trieu-Cuot, Shaynoor Dramsi
Summary: Bacteriocins are natural antimicrobial peptides produced by bacteria to kill competitors. Streptococcus gallolyticus subsp. gallolyticus outcompetes commensal enterococci in murine microbiota under tumoral conditions by producing a bacteriocin named gallocin. The regulatory control of gallocin involves a two-peptide system (BlpH/BlpR) activated by a secreted peptide (GSP), with BlpS repressing gallocin gene transcription.
Article
Multidisciplinary Sciences
Mathilde Bonis, Arnaud Felten, Sylvie Pairaud, Angelie Dijoux, Veronique Maladen, Ludovic Mallet, Nicolas Radomski, Arnaud Duboisset, Chantal Arar, Xavier Sarda, Gaelle Vial, Michel-Yves Mistou, Olivier Firmesse, Jacques-Antoine Hennekinne, Sabine Herbin
Summary: This study revealed that Bacillus thuringiensis (Bt) could be a major causative agent of foodborne outbreaks (FBOs), with most FBO-associated Bt isolates showing a genetic relationship. More than 51% of Bt isolates were found in dishes containing raw vegetables, particularly tomatoes.
Article
Public, Environmental & Occupational Health
Yu-Jin Jung, Bich-Tram Huynh, Abdoulaye Seck, Raymond Bercion, Fatoumata Diene Sarr, Perlinot Herindrainy, Jean-Baptiste Diouf, Zafitsara Zo Andrianirina, Arnaud Firon, Patrick Trieu-Cuot, Sophie Goyet, Jean-Marc Collard, Elisabeth Delarocque-Astagneau, Didier Guillemot, Muriel Vray
Summary: This study estimated the prevalence of Group B Streptococcus (GBS) colonization among pregnant women in Madagascar and Senegal, and found rates of 5.0% and 16.1% respectively. No sociodemographic characteristics, living conditions, or obstetric history were independently associated with GBS colonization in either country. This community-based study provided valuable information on maternal GBS colonization in these regions.
AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE
(2021)
Article
Genetics & Heredity
Maria-Vittoria Mazzuoli, Maelle Daunesse, Hugo Varet, Isabelle Rosinski-Chupin, Rachel Legendre, Odile Sismeiro, Myriam Gominet, Pierre Alexandre Kaminski, Philippe Glaser, Claudia Chica, Patrick Trieu-Cuot, Arnaud Firon
Summary: This study reveals the regulation of virulence genes in Group B Streptococcus by the master regulator CovR and emphasizes the importance of intra-species evolution in the emergence of specific disease-associated clones. The expression of specific surface proteins is linked to the hypervirulence of certain GBS clones.
Article
Microbiology
Sabrina Cadel-Six, Emeline Cherchame, Pierre-Emmanuel Douarre, Yue Tang, Arnaud Felten, Pauline Barbet, Eva Litrup, Sangeeta Banerji, Sandra Simon, Federique Pasquali, Michele Gourmelon, Nana Mensah, Maria Borowiak, Michel-Yves Mistou, Liljana Petrovska
Summary: The study highlights the evolution of the epidemic European monophasic variant of Salmonella enterica serovar Typhimurium (S. 1,4,[5],12:i:-) ST34, which occurred in two steps in the 1980s and 1990s, involving the acquisition of multiple heavy metal resistances to adapt to the environment and enhance antimicrobial resistance. This evolution was facilitated by the integration of different genetic elements and phages, contributing to the spread and success of this serovar.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Chemistry, Physical
Audrey Beaussart, Florent Canonico, Hortense Mazon, Jorge Hidalgo, Sarah Cianferani, Helene Le Cordier, Alexandre Kriznik, Sophie Rahuel-Clermont
Summary: This study investigates the non-covalent interaction mechanism and dynamics between Srx and Prx Tsa1 at the decamer level. The results show that ten Srx molecules can saturate the ten subunits of the decamer, and the complex does not dissociate in solution. Additionally, protein engineering and atomic force microscopy reveal that the flexibility of Tsa1 C-terminus controls the binding and dissociation process.
NANOSCALE HORIZONS
(2022)
Article
Microbiology
Michael Koczerka, Pierre-Emmanuel Douarre, Florent Kempf, Sebastien Holbert, Michel-Yves Mistou, Olivier Grepinet, Isabelle Virlogeux-Payant
Summary: The study revealed the widespread presence of the rck gene in various subspecies of Salmonella, raising questions about its evolution. The results emphasize the important role of rck in virulence and contribute to understanding the role of Rck in the pathogenesis of Salmonella.
MICROBIOLOGY SPECTRUM
(2021)
Review
Microbiology
Nour Mammari, Elsa Salles, Audrey Beaussart, Sofiane El-Kirat-Chatel, Mihayl Varbanov
Summary: Squalamine and its derivatives have shown potent antibacterial, antifungal, antiprotozoa, and antiviral activities. They also exhibit potential positive effects in cancer treatment and other diseases. This review provides an overview of the various effects of squalamine and its derivatives, as well as the mechanisms of their actions on the human organism and different pathogens.
Article
Biotechnology & Applied Microbiology
Jerome F. L. Duval, Angelina Razafitianamaharavo, Isabelle Bihannic, Marc Offroy, Nicolas Lesniewska, Benedicte Sohm, Helene Le Cordier, Christian Mustin, Christophe Pagnout, Audrey Beaussart
Summary: The variation of cell-wall ultrastructure, composition, and nanomechanics of Chlorella vulgaris upon culture ageing and lysozyme treatment was investigated using a combination of atomic force microscopy (AFM) and confocal microscopy. The presence of a fibrillated mesh at the surface of cells harvested in the stationary phase was observed through AFM imaging. The structured network formed by fibrils containing the N-acetyl-D-glucosamine unit was severely damaged by lysozyme treatment. Furthermore, lysozyme was found to affect algal physiology, triggering oxidative stress and changes in cell lipid content.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Microbiology
Madeleine De Sousa Violante, Valerie Michel, Karol Romero, Laetitia Bonifait, Louise Bauge, Agnes Perrin-Guyomard, Carole Feurer, Nicolas Radomski, Ludovic Mallet, Michel-Yves Mistou, Sabrina Cadel-Six
Summary: In this study, the genomic diversity of 304 S. Mbandaka strains isolated from bovine and poultry sectors in north-western France was analyzed. The phylogenomic analysis revealed main clustering by host and emphasized the circulation of 12 different major clones, potentially related to the adaptation of the serovar in the food production chain. The identified mutations characteristic of each major cluster could be used to design useful probes for food safety surveillance.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Genetics & Heredity
Madeleine De Sousa Violante, Gaetan Podeur, Valerie Michel, Laurent Guillier, Nicolas Radomski, Renaud Lailler, Simon Le Hello, Francois-Xavier Weill, Michel-Yves Mistou, Ludovic Mallet
Summary: This study presents a retrospective genomic analysis of Salmonella enterica subsp. enterica Dublin outbreaks in France between 2015 and 2017. The analysis reveals the importance of geographical distance, transformation steps, and genomic diversity in the evolution of S. Dublin populations. The study also highlights the effectiveness of bacterial surveillance in representing diversity.
NAR GENOMICS AND BIOINFORMATICS
(2022)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.