Article
Chemistry, Applied
Jiang Bing, Xu Xiao, David Julian McClements, Yuan Biao, Cao Chongjiang
Summary: The study found interactions between four plant proteins and titanium dioxide nanoparticles, leading to the formation of protein coronas of varying thicknesses and changes in the surface potentials of the nanoparticles, affecting the secondary structures of the plant proteins.
FOOD HYDROCOLLOIDS
(2021)
Article
Agriculture, Multidisciplinary
Honghong Shan, Qiaorun Zhao, Ying Guo, Mengchao Gao, Xiao Xu, David Julian McClements, Chongjiang Cao, Biao Yuan
Summary: In aqueous media, the pH of the solution affects the structure and properties of protein corona formed around TiO2 nanoparticles. This study investigated the impact of pH on the structural and physicochemical properties of whey protein coronas. The pH influenced the whey protein molecules' structure, with the largest adsorption capacity at the isoelectric point and the lowest under highly acidic or alkaline conditions. The study highlights the role of pH in protein conformation and interactions for understanding the formation and properties of protein coronas around inorganic nanoparticles.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Review
Biochemistry & Molecular Biology
Ana Vujacic Nikezic, Jasmina Grbovic Novakovic
Summary: The treatment of various diseases, especially cancer, may involve the use of different nanoparticles and nanostructures as carriers for drugs. However, further progress is needed to find less toxic and more efficient therapy, and recent developments in medicine are increasingly utilizing advanced nanostructures. To ensure their safe use, it is important to balance the potential of different nanostructures with the demands required for their usage, such as biocompatibility, biodegradability, prolonged circulation time, and enhanced accumulation and uptake by cells.
CURRENT MEDICINAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Maximilian Brueckner, Johanna Simon, Katharina Landfester, Volker Mailaender
Summary: Antibody-modified drug delivery systems in the nano-range show potential in overcoming current challenges for disease treatment due to their high specificity, but no clinically approved antibody-bound nanocarrier exists. Different conjugation strategies influence the spatial orientation of antibodies on the nanocarriers' surface, impacting the success of antibody functionalized drug delivery systems. In this study, two conjugation strategies were compared, showing that both thiol-maleimide coupling and copper-free click chemistry can induce dendritic cell uptake, with orientation of antibodies affecting the targeting efficiency.
Review
Chemistry, Multidisciplinary
Karin Nienhaus, Gerd Ulrich Nienhaus
Summary: Although a variety of nanoparticles have been developed for medical use, their application in clinical settings is limited. The lack of understanding of nanoparticle interactions in the bio-environment, particularly the protein corona, is a major obstacle. This article critically reviews research on the protein corona, including its structure, reversibility, time dependence, and role in nanoparticle agglomeration, highlighting the need for further mechanistic studies. The article concludes with a discussion of future research directions to enhance the understanding of the protein corona and improve the design of nanomedicines.
Article
Biochemistry & Molecular Biology
Benjamin L. Piette, Nader Alerasool, Zhen-Yuan Lin, Jessica Lacoste, Mandy Hiu Yi Lam, Wesley Wei Qian, Stephanie Tran, Brett Larsen, Eric Campos, Jian Peng, Anne-Claude Gingras, Mikko Taipale
Summary: This study combines different experimental methods to describe the interactome of human JDPs and Hsp70s, identifying specific functions for some unknown JDPs, as well as the roles of DNAJC9 and DNAJC27 in histone chaperoning and ciliogenesis. The unexpected finding that the J domain of DNAJC27 can fully replace the function of endogenous DNAJC27 suggests a previously unappreciated role for J domains in JDP specificity.
Review
Materials Science, Biomaterials
Jun Yong Oh, Gyeongseok Yang, Eunshil Choi, Ja-Hyoung Ryu
Summary: The review highlights the recent research on mesoporous silica nanoparticle-supported nanocarriers for efficient cancer treatment. These nanocarriers possess a high drug loading capacity, encapsulation stability, and targeting capability, making them promising for drug delivery applications.
BIOMATERIALS SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Mengyi Li, Shuai Jiang, Johanna Simon, David Passlick, Marie-Luise Frey, Manfred Wagner, Volker Mailaender, Daniel Crespy, Katharina Landfester
Summary: The dense arrangement of brush-like PEG chains reduces the nonspecific uptake of nanocarriers by dendritic cells, while controlling the conformation of attached PEG can partly regulate dysopsonin adsorption. The brush conformation of PEG enables stealth behavior of nanocarriers and inhibits uptake by phagocytic cells, facilitating long blood circulation and targeted delivery. The study demonstrates that, in addition to surface chemistry, the conformation of polymers plays a crucial role in controlling cellular interactions of nanocarriers.
Article
Materials Science, Biomaterials
Saisai Yue, Xin Zhang, Yuping Xu, Lichong Zhu, Junwei Cheng, Yuanyuan Qiao, Suyang Dai, Jialin Zhu, Ni Jiang, Hao Wu, Peisen Zhang, Yi Hou
Summary: This study found that protein corona has different effects on the active and passive tumor-targeting abilities of nanoparticles. Sufficient interaction time between the particles and cells can enhance the active cancer-targeting ability, but it may also accelerate RES/MPS uptake and disable the active targeting abilities.
JOURNAL OF MATERIALS CHEMISTRY B
(2022)
Article
Oncology
Md. Nazir Hossen, Chandra Kumar Elechalawar, Virginie Sjoelund, Kathleen Moore, Robert Mannel, Resham Bhattacharya, Priyabrata Mukherjee
Summary: This study aimed to identify potential new molecular target proteins (NMTPs) responsible for poor outcomes in ovarian cancer. The results showed that pre-processing conditions can alter the protein corona (PC) composition and enhance the identification of NMTPs.
CANCER NANOTECHNOLOGY
(2021)
Article
Environmental Sciences
Yanni Yu, Wei Dai, Yaning Luan
Summary: The application of nanomaterials in agriculture promotes their interactions with plants. Recently, there has been increasing attention on these interactions and their biological effects. Nanoparticles enter plants through various organs and form biocoronas by adsorbing biomolecules. In addition, when nanoparticles enter plants through roots, they may form ecocoronas with root exudates before contacting plant exogenous proteins. The biological effects of plant protein coronas include changes in protein structure and function, as well as changes in nanoparticle toxicity and targeting ability. However, further investigation is needed to understand the mechanisms, particularly how protein corona affects plant protein function, plant development and growth, and rhizosphere environment properties. This review provides an overview of the formation and biological effects of nanoparticle-plant protein coronas and suggests future research directions.
ENVIRONMENTAL POLLUTION
(2023)
Article
Astronomy & Astrophysics
Talwinder Singh, Alphonse C. Sterling, Ronald L. Moore
Summary: The Solar Dynamics Observatory (SDO) and Atmospheric Imaging Assembly (AIA) images the solar disk in extreme-ultraviolet (EUV) bands, showing dark moats surrounding isolated active regions (ARs) on the disk. The dark moats are most prominent in the AIA 171 A band, with depressions in intensity over the temperature range log(10) T 5.7-6.2. This phenomenon is likely due to the pressure from strong magnetic fields flattening underlying magnetic loops.
ASTROPHYSICAL JOURNAL
(2021)
Article
Chemistry, Physical
Tengjisi, Yue Hui, Yuanyuan Fan, Da Zou, Gert H. Talbo, Guangze Yang, Chun-Xia Zhao
Summary: This study revealed the impact of nanoparticle stiffness on protein corona formation, with nanoparticles of different stiffness showing distinct proteomic fingerprints. Nanocapsules with the highest stiffness had a protein corona rich in complement and immunoglobulin proteins, leading to high macrophage uptake.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Toxicology
Zhangde Chen, Bingwei Yang, Ziyi Yan, Erqun Song, Yang Song
Summary: Silica nanoparticles (SiO2 NPs) have potential hazards to human health, but their hemolytic properties vary under different coatings. The results emphasize the influence of surface modification on the toxicity of environmental nanoparticles.
TOXICOLOGY LETTERS
(2022)
Review
Polymer Science
Johannes Kockelmann, Rudolf Zentel, Lutz Nuhn
Summary: The reactive ester approach enables the synthesis of various drug delivery systems, including amphiphilic block copolymer micelles for encapsulating hydrophobic drugs and (reversibly) crosslinked nano(hydro)gel particles for hydrophilic drugs. This approach also allows for surface functionalization to target different drug delivery scenarios and prevents protein corona formation. The article emphasizes the concept of reactive ester macromolecules as a beneficial tool in drug delivery.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Biology
Jihad Karam, Julie Constanzo, Alexandre Pichard, Laurent Gros, Joel Chopineau, Marie Morille, Jean-Pierre Pouget
Summary: This study investigated the effects of sEVs produced by irradiated cells on bystander cytotoxic effects and therapeutic efficacy. In vitro experiments showed that sEVs had cytotoxic effects on recipient cells. However, no systemic effects were observed in vivo.
INTERNATIONAL JOURNAL OF RADIATION BIOLOGY
(2023)
Article
Biochemical Research Methods
Clement Lozano, Lucia Grenga, Fabrice Gallais, Guylaine Miotello, Laurent Bellanger, Jean Armengaud
Summary: The recent outbreak of monkeypox in non-endemic countries has led to the urgent need for expanded surveillance and understanding of its origin and spread. This study presents experimental data on the proteome of the monkeypox virus, using state-of-the-art shotgun proteomics techniques. The findings highlight potential candidate markers for virus detection and could contribute to the development of mass spectrometry-based tests.
Article
Microbiology
Jean Armengaud
Summary: Microbial communities have attracted much attention due to their roles and numerous applications in the medical, environmental, and biotechnological fields. However, studying these communities is challenging due to their diversity and complexity. Metaproteomics, a method based on protein identification and quantification, is gaining momentum in microbiome and holobiont research, and holds great potential in providing a comprehensive understanding of microbial communities.
ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Charlotte Mappa, Beatrice Alpha-Bazin, Olivier Pible, Jean Armengaud
Summary: Correctly identifying microorganisms in complex samples is crucial. Proteotyping through tandem mass spectrometry can establish the presence of organisms in a sample. Evaluating bioinformatics strategies and tools for analyzing recorded datasets is essential for reliable results and improving sensitivity and accuracy. This study provides tandem mass spectrometry datasets of a reference consortium containing 24 bacterial species, including challenging cases for testing assignment strategies. This resource serves as a common reference for developers comparing proteotyping tools and evaluating protein assignments in complex samples like microbiomes.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Environmental
Alicia Vallet, Jacqueline Martin-Laffon, Adrien Favier, Benoit Revel, Titouan Bonnot, Claude Vidaud, Jean Armengaud, Jean-Charles Gaillard, Pascale Delangle, Fabienne Devime, Sylvie Figuet, Nelson B. C. Serre, Elisabetta Boeri Erba, Bernhard Brutscher, Stephane Ravanel, Jacques Bourguignon, Claude Alban
Summary: Uranium is a toxic radionuclide that can bind to proteins in Arabidopsis thaliana. We identified 38 uranyl-binding proteins, including plasma membrane-associated cation-binding protein 1 (PCaP1), which interacts with U(VI) and other metals. In vitro experiments showed that PCaP1 binds U(VI), Cu(II), and Fe(III) with high affinity, and Ca(II) competes with U(VI) for binding. U(VI) affects PCaP1 oligomerization and its role in ion trafficking in planta was observed in Arabidopsis lines with altered PCaP1 gene expression.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Biochemical Research Methods
Benjamin A. R. N. Durand, Catherine Dunyach-Remy, Oumayma El Kaddouri, Riham Daher, Jean-Philippe Lavigne, Jean Armengaud, Lucia Grenga
Summary: This study investigates the production and secretion of bacterial virulence interacting proteins in Helcococcus kunzii, a skin commensal bacterium found in chronic wounds. The cellular proteome and exoproteome of H. kunzii were analyzed, revealing differences between growth stages and discussing metabolic variations. This research provides important insights for understanding this opportunistic pathogen and developing innovative wound management approaches.
PROTEOMICS CLINICAL APPLICATIONS
(2023)
Article
Environmental Sciences
Jennifer Laurent, Iwan Le Berre, Jean Armengaud, Senthilkumar Kailasam, Jerome Couteau, Matthieu Waeles, Jean Laroche, Vianney Pichereau
Summary: This study aimed to develop a multidisciplinary approach to assess the ecological status of six moderate-sized French estuaries. By gathering geographical information, hydrobiological data, chemistry of pollutants, and fish biology, including integration of proteomics and transcriptomics data, the researchers were able to characterize and identify the main stressors impacting each estuary's hydrological system.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Immunology
Melanie Gonzales, Laure Plener, Jean Armengaud, Nicholas Armstrong, Eric Chabriere, David Daude
Summary: This study demonstrates the importance of Quorum sensing in Burkholderia thailandensis using an enzyme-based quorum quenching strategy. The disruption of quorum sensing greatly affects bacterial behavior, including motility, proteolytic activity, and antimicrobial molecule production. Furthermore, the study shows that quorum sensing disruption significantly enhances the bactericidal activity against fungi and yeast. These findings are of prime interest for understanding the virulence of Burkholderia species and developing alternative treatments.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2023)
Article
Pharmacology & Pharmacy
Dayaris Hernandez, Anaela Montalvo, Irela Perez, Clarence Charnay, Rita Sanchez-Espejo, Pilar Cerezo, Cesar Viseras, Serena Riela, Giuseppe Cina, Aramis Rivera
Summary: L-ascorbic acid (LAA), commonly known as vitamin C, is an excellent antioxidant molecule used in pharmaceutical and cosmetic formulations. This study found that natural clays can be used as carriers for LAA, protecting its chemical stability and antioxidant capacity. Various tests confirmed the successful incorporation of LAA into clay and the preservation of its antioxidant properties in the complex.
Article
Biochemistry & Molecular Biology
Haneen Omar, Sara Jakimoska, Julia Guillot, Edreese Alsharaeh, Clarence Charnay, Frederique Cunin, Aurelie Bessiere, Jean-Olivier Durand, Laurence Raehm, Laure Lichon, Melanie Onofre, Magali Gary-Bobo
Summary: Dendritic mesoporous organosilica nanoparticles (DMON) are a new class of biodegradable nanoparticles suitable for biomolecule delivery. Studies have shown that DMON can load siRNA and deliver it to cancer cells, as well as load FVIII protein. However, photodynamic therapy (PDT) or photochemical internalization (PCI) is not feasible due to the presence of tetrasulfide.
Article
Environmental Sciences
Maxime Lepretre, Arnaud Chaumot, Rayan Aboud, Nicolas Delorme, Anabelle Espeyte, Arnaud Salvador, Sophie Ayciriex, Jean Armengaud, Marina Coquery, Olivier Geffard, Davide Degli-Esposti
Summary: Mass spectrometry in multiple reaction monitoring (MRM) mode enables selective and multiplexed quantification of peptides derived from proteins. This study evaluates the feasibility of using dynamic MRM (dMRM) tools to investigate proteomes in sentinel species and demonstrates their potential for discovering new protein biomarkers. A dMRM assay was developed to capture the functional proteome of a freshwater crustacean and assess the effects of metal exposure. Metal-specific signatures were identified as potential biomarkers for tracking metal levels in freshwater ecosystems. This study highlights the potential of dMRM for identifying and developing biomarkers in sentinel species.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Clement Baratange, Hugo Baali, Veronique Gaillet, Isabelle Bonnard, Laurence Delahaut, Jean-Charles Gaillard, Dominique Grandjean, Stephanie Sayen, Andrea Gallorini, Nathalie Le Bris, David Renault, Florian Breider, Jean-Luc Loizeau, Jean Armengaud, Claudia Cosio
Summary: Dreissena polymorpha is a bivalve species with potential for biomonitoring in freshwater ecosystems due to its abundance and high filtration activity. This study aimed to investigate the molecular responses of D. polymorpha to stress caused by carbamazepine (CBZ) and mercury (Hg) individually and in combination. The results showed that the co-exposure of CBZ and Hg caused more alterations in the bivalve compared to single exposures. Specifically, neurotransmission-related proteins and metabolites were modulated by the co-exposure, while calcium signaling pathways and amino acids were specifically affected by CBZ, and cytoskeleton remodeling and hypoxia-induced factor 1 pathway were specifically affected by Hg. The study highlighted the importance of characterizing the molecular toxicity pathways of multi-contamination to improve risk assessment and anticipate adverse effects in biota.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Multidisciplinary Sciences
Jean-Lou Reyre, Sacha Grisel, Mireille Haon, Ruite Xiang, Jean-Charles Gaillard, Jean Armengaud, Victor Guallar, Antoine Margeot, Simon Arragain, Jean-Guy Berrin, Bastien Bissaro
Summary: Lytic polysaccharide monooxygenases (LPMOs) are enzymes that promote the conversion of biopolymers such as cellulose and chitin in Nature. The functional relevance of the multiple LPMO-encoding genes in Polyporales fungi remains unclear. This study characterized six AA9-X282s, which are AA9 proteins with unique features, and found that they have weak binding properties to cellulose and low cellulolytic oxidative activity. The presence of phosphorylated residues, including a conserved residue near the copper site, and a glycine-rich C-terminal extension with potential phosphate-binding properties were also identified. These findings question the involvement of these AA9 proteins in plant cell wall degradation and provide new insights into their functional divergence.
SCIENTIFIC REPORTS
(2023)
Meeting Abstract
Orthopedics
A. Defois, N. Bon, A. Charpentier, M. Georget, F. Blanchard, A. Hamel, D. Waast, J. Armengaud, O. Renoult, C. Pecqueur, Y. Maugars, M. -A. Boutet, J. Guicheux, C. Vinatier
OSTEOARTHRITIS AND CARTILAGE
(2023)
Article
Biochemical Research Methods
Imed Dorbani, Jean Armengaud, Frederic Carlin, Catherine Duport
Summary: This study compared the spore proteomes of Bacillus atrophaeus and Bacillus pumilus using a shotgun proteomic approach. It identified several differentially expressed proteins and provided a molecular signature to elucidate the resistance differences between the two strains.
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.
