Article
Chemistry, Physical
Hao Zhang, Zhijia Lv, Dongzhi Xue, Tianqi Zhang, Longhai Jin, Yue Cao, Shuai Zhang, Yinghui Wang, Hongjie Zhang
Summary: A TME-responsive theranostic nanoagent was fabricated using a layer-by-layer synthesis method, which can achieve enhanced chemotherapy within tumor cells without collateral damage to normal tissues. The nanoagent efficiently kills tumor cells in both in vitro and in vivo experiments.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jin Wang, Yinhang Jia, Qiyue Wang, Zeyu Liang, Guangxu Han, Zejun Wang, Jiyoung Lee, Meng Zhao, Fangyuan Li, Ruiliang Bai, Daishun Ling
Summary: The article introduces a T-1-T-2 dual-mode contrast agent designed for ultrahigh-field MRI, which not only improves resolution and signal-to-noise ratio, but also effectively displays microvasculature structures with high sensitivity and accuracy in detecting tumor vascular permeability.
ADVANCED MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Li Xu, Zhanying Ren, Guolin Li, Danni Xu, Jiaqian Miao, Jingxuan Ju, Xuan Mo, Xianghui Wang, Hongping Deng, Min Xu
Summary: A liver-targeting gadolinium-based MRI contrast agent was developed using galactose functionalized o-carboxymethyl chitosan, which exhibited higher hepatocyte uptake, excellent biocompatibility, and better T1-weighted signal enhancement in the liver. The agent showed good safety in vivo at a specific dose.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Julien Mahin, Christoph O. Franck, Luise Fanslau, Hirak K. Patra, Michael D. Mantle, Ljiljana Fruk, Laura Torrente-Murciano
Summary: A novel method for synthesizing bare iron oxide nanoparticles using modular microreactor systems and functionalizing them with a custom heterobifunctional PEG stabilizer in a reproducible and efficient manner is presented. The nanoparticles can be easily conjugated with any molecule of interest through simple amide coupling, showcasing their potential for various biomedical applications. The produced iron oxide nanoparticles are fully biocompatible, stable in biologically relevant media, and suitable for T-2 MRI contrast applications, with a low total cost, demonstrating the feasibility of large-scale deployment in real world applications.
REACTION CHEMISTRY & ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Jeotikanta Mohapatra, Saumya Nigam, Jabin George, Abril Chavez Arellano, Ping Wang, Ping Liu
Summary: Imaging plays a crucial role in the accurate diagnosis of diseases, and magnetically guided imaging techniques offer advantages in terms of being non-invasive and operating within acceptable thresholds. Magnetic nanoparticles have unique physical properties and molecular-level functionality, making them versatile contrast agents and nanotracers for magnetic resonance imaging and magnetic particle imaging. They have the potential to enhance the performance of magnetically guided biomedical imaging.
MATERIALS TODAY PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Sedigheh Cheraghali, Ghasem Dini, Isabella Caligiuri, Michele Back, Flavio Rizzolio
Summary: In this study, hierarchical MnZn ferrite nanoparticles were synthesized and their surface characteristics were improved by PEGylation. In vitro MRI studies confirmed the ability of the synthesized nanoparticles as a contrast agent. Results were compared with normal structured MnZn ferrite nanoparticles.
Article
Chemistry, Multidisciplinary
Anna Koudrina, Celine Chartrand, Greg O. Cron, Jonathan O'Brien, Eve C. Tsai, Maria C. DeRosa
Summary: In this study, targeted core-shell nanoparticles (CSN) functionalized with aptamers were used for high-resolution imaging of blood clots in T2-weighted magnetic resonance imaging and computed tomography. These aptamer-functionalized CSN demonstrated high contrast abilities in computed tomography, and could enable precise imaging of blood clots at low concentrations.
CHEMICAL COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Zhoufeng Deng, Guanglei Qiao, Lijun Ma, Qian Zhang, Ping Zhang, Daxiang Cui
Summary: The study successfully fabricated an innovative nanoprobes with active targeting and real-time image-guided photothermal therapy capabilities, which demonstrated good therapeutic efficacy on gastric cancer.
ACS APPLIED NANO MATERIALS
(2021)
Article
Biochemistry & Molecular Biology
Agnes M. Ilosvai, Laszlo Forgach, Noemi Kovacs, Fatemeh Heydari, Krisztian Szigeti, Domokos Mathe, Ferenc Kristaly, Lajos Daroczi, Zoltan Kaleta, Bela Viskolcz, Miklos Nagy, Laszlo Vanyorek
Summary: In this study, amine-functionalized zinc ferrite nanoparticles were synthesized using two different solvothermal methods. The nanoparticles exhibited stable magnetic properties and could be easily dispersed in water. They were also found to be effective contrast agents in magnetic resonance imaging, with concentrated presence in the hepatic region of the animals. No toxic side effects were observed, making these nanoparticles advantageous for pharmaceutical formulations.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Xiaoqing Wei, Dan Mu, Yingping Li, Jingya Zhao, Shaobing Zhou
Summary: Researchers have developed a magnetic exosome that responds to bacteria associated with tumors, enabling sensitive tumor imaging. The magnetic exosome can rapidly respond in the tumor microenvironment and release iron oxide nanoparticles for dynamic MRI of tumors. After MRI, the iron oxide nanoparticles can be eliminated through renal clearance to avoid potential toxicity.
Review
Chemistry, Multidisciplinary
Mike Jeon, Mackenzie Halbert, Zachary R. Stephen, Miqin Zhang
Summary: Gadolinium-based chelates are commonly used contrast agents for MRI, but their toxicity and potential retention in patients' bodies have raised safety concerns. Iron oxide nanoparticles have emerged as a promising alternative due to their non-toxic and biodegradable nature, but their development as T-1 contrast agents is complex and challenging. Progress is being made in exploring IONPs as safe and improved alternatives, but there are still many hurdles to overcome before they can be used clinically.
ADVANCED MATERIALS
(2021)
Article
Pharmacology & Pharmacy
Monica Cerqueira, Efres Belmonte-Reche, Juan Gallo, Fatima Baltazar, Manuel Banobre-Lopez
Summary: Cancer is a leading cause of death worldwide, with a projected increase in global cancer incidence in the next two decades. Nanomedicine formulations have the potential to improve the effectiveness of conventional cancer therapies. However, the targeting efficiency of advanced nanomedicines in oncology is currently one of the major limitations, highlighting the need for more efficient nanoformulation designs.
Article
Chemistry, Physical
Maria Volokhova, Anna Shugai, Masahiko Tsujimoto, Anna-Liisa Kubo, Sven Telliskivi, Mait Nigul, Peep Uudekull, Heiki Vija, Olesja M. Bondarenko, Jasper Adamson, Anne Kahru, Raivo Stern, Liis Seinberg
Summary: Nanoparticles with SiO2 coating and cubic iron core show high saturation magnetization, excellent biocompatibility, and potential for MRI contrast agents.
Article
Radiology, Nuclear Medicine & Medical Imaging
Ayesha Bharadwaj Das, James Andrew Tranos, Jin Zhang, Youssef Zaim Wadghiri, Sungheon Gene Kim
Summary: The feasibility of using 2 flip angles during DCE-MRI scan to estimate plasma Gd concentration without using precontrast T1 measurement was investigated. The results showed that using 2 flip angles for T1 estimation is a viable method for estimating plasma Gd concentration during DCE-MRI scan without the need for a separate precontrast T1 measurement.
INVESTIGATIVE RADIOLOGY
(2022)
Article
Biochemical Research Methods
Jiaqian Li, Steven E. Kirberger, Yiao Wang, Huarui Cui, Carston R. Wagner, William C. K. Pomerantz
Summary: The design of imaging agents with high fluorine content is important for overcoming signal detection limits in F-19 MRI-based molecular imaging. This study characterizes new highly fluorinated synthetic peptides composed of highly fluorinated amino acids, which show intense fluorine resonances and acceptable solubility. The results support the potential use of fluorinated peptides for molecular imaging.
BIOCONJUGATE CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
J. S. Sarmento, D. V. M. Paiva, E. de Araujo, M. A. S. Silva, A. S. B. Sombra, S. E. Mazzetto, P. B. A. Fechine
Summary: A series of MCuSi4O10 (M = Ca2+, Sr2+ and Ba2+) electroceramics with promising microwave dielectric properties have been prepared and characterized. The electroceramics show a thermo-activated process with activation energy (E-a) values between 0.65 and 1.66 eV. The impedance spectroscopy and dielectric resonator antenna measurements reveal the electrical contributions of grain and grain boundaries. The CCOS and BCSO-based DRAs exhibit a near-zero temperature coefficient of resonant frequency (tau(f)), indicating their potential as commercial antennas for C- and X-band applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Physics, Applied
R. F. Juca, J. M. Soares, V. A. Soares, D. S. Evaristo, F. G. S. Oliveira, I. F. Vasconcelos, G. D. Saraiva, N. S. Ferreira, M. A. Macedo
Summary: We report the magnetism of amorphous SiO2-Al2O3-CaO-MgO-Fe2O3-K2O-MnO: CA (CA-activated carbon) aluminosilicate glasses prepared by a fusion-quenching method. The presence of Fe2+ lattice modifier in the glass structures induces depolymerization, greatly affecting the magnetic transitions. Room temperature magnetization measurements reveal different magnetic behaviors, including speromagnetism, asperomagnetism, and weak ferromagnetism, in the CA-glasses. Analysis through Mo ssbauer spectroscopy at room temperature suggests that the change in valence from Fe3+-> Fe2+ triggers the asperomagnetism and weak ferromagnetism, due to Fe2+-O-Fe3+ superexchange coupling in short-range structures of the aluminosilicate glasses. A proposed model explains the different magnetic regimes in the aluminosilicate glass structures.
APPLIED PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Maria K. S. O. Abreu, Maria A. S. Silva, Dieric S. Abreu, Ana R. Richter, Regina C. M. de Paula, Vera R. L. Constantino, Igor F. Vasconcelos, Francisco G. S. de Oliveira, Acacio S. de Melo, Marcio A. Correa, Izaura C. N. Diogenes
Summary: This study improves the colloidal stability of CoFe2O4 in water media by encapsulating it in CMCG. The results show that after encapsulation, CoFe2O4 forms a polymer-caged MNPs aggregate with a negatively charged layer. Despite the dilution effect of CMCG, the material maintains magnetization.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Applied
Francisco L. F. da Silva, Francisco E. H. Lima, Davino M. Andrade Neto, Fernando L. de Menezes, Lillian M. U. D. Fechine, Abdullah Akhdhar, Livia P. D. Ribeiro, Ana R. A. Nogueira, Pierre B. A. Fechine, Gisele S. Lopes, Wladiana O. Matos
Summary: An alternative analytical method using ICP OES was developed for quantifying inorganic arsenic (iAs) in rice. Iron nanoparticles modified with an organophosphorus compound were used to extract iAs from the plant matrix. The proposed method demonstrated satisfactory precision, LOD, and LOQ, with tAs contents between 0.090 and 0.295 mg kg-1 and iAs mass fractions between 0.055 and 0.109 mg kg-1 in rice samples.
Article
Dentistry, Oral Surgery & Medicine
Salvatore Sauro, Gianrico Spagnuolo, Carmela Del Giudice, Davino M. Andrade Neto, Pierre B. A. Fechine, Xiaohui Chen, Sandro Rengo, Xiaojing Chen, Victor P. Feitosa
Summary: This study evaluated the cytotoxicity, chemical and structural properties of fluoride-doped calcium-phosphates as potential remineralising materials for dental applications. Experimental calcium phosphates were tested for their ability to crystallise into apatite-like and their fluoride release. The materials showed biocompatibility and the ability to promote cell proliferation, indicating their potential use as remineralising materials in dentistry.
Article
Anatomy & Morphology
Sergimar Kennedy de Paiva Pinheiro, Ana Kamila Medeiros Lima, Thaiz Batista Azevedo Rangel Miguel, Saulo Pireda, Pierre Basilio Almeida Fechine, Antonio Gomes Souza Filho, Emilio de Castro Miguel
Summary: The toxicity effects of titanium dioxide (MTiO2) microparticles on Artemia sp. nauplii instar I and II were evaluated in this study. The MTiO2 were characterized using different microscopy techniques. No toxicity was observed in Artemia sp. nauplii instar I within 24 and 48 h, but toxicity was observed in Artemia sp. nauplii instar II after 48 h of exposure. MTiO2 at concentrations of 25, 50, and 100 ppm caused lethal effects on Artemia sp. with significant differences compared to the control group. Analysis using microscopy techniques revealed tissue damage and morphological changes in Artemia sp. nauplii instar II, and cell damage was observed at concentrations of 20, 50, and 100 ppm using confocal laser scanning microscopy.
MICROSCOPY RESEARCH AND TECHNIQUE
(2023)
Article
Nanoscience & Nanotechnology
Rafael M. M. Freire, Evelyn Silva-Moreno, Christian Robles-Kelly, Claudia D. D. Infante, Juliano C. C. Denardin, Sebastian Michea
Summary: In this study, an easy method for producing monodisperse spinel nanoparticles and investigating their antifungal activity was presented. The structural, morphological, and magnetic properties of each nanoparticle were characterized using XRD, TEM, and VSM. The results showed that the nanoparticles exhibited a crystalline spinel phase, monodisperse spherical morphology, and superparamagnetic behavior. The CoFe2O4 nanoparticle demonstrated the most effective antifungal activity against Botrytis cinerea, inducing a burst of ROS and promoting cellular damage.
Article
Nanoscience & Nanotechnology
Pamela M. Sepulveda, Sebastiain A. Campos, Wendy Calzadilla, Jose F. Marco, Juliano C. Denardin, Ricardo A. Salazar-Gonzalez
Summary: In this study, Fe2O3-Ni, Fe2O3-Ni-Pd, MgO-Ni, and MgO-Ni-Pd nanoparticles were synthesized and used for the degradation of florfenicol (FLO). The degradation mechanisms of FLO using Fe2O3-Ni and MgO-Ni nanocatalysts were compared, and the effect of Pd incorporation on the degradation processes was evaluated. The results showed that the degradation of FLO was mainly achieved through the heterogeneous photo-Fenton process, with Fe2O3-Ni and MgO-Ni nanocatalysts achieving 78% and 44% removal of the antibiotic, respectively. The incorporation of Pd improved the degradation efficiency by 22%. Organic intermediates produced during the degradation were identified, and a degradation pathway was proposed. These findings suggest that heterogeneous Fenton and photo-Fenton processes using nanoparticles as catalysts are a promising method for the degradation of FLO in water.
ACS APPLIED NANO MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
S. V. Carneiro, J. J. P. Oliveira, V. S. F. Rodrigues, J. P. O. Lima, J. H. O. do Nascimento, R. Santos-Oliveira, L. M. U. D. Fechine, R. M. Freire, P. B. A. Fechine
Summary: Recently, optical chemical sensors have been used to simplify traditional methods of chemical analyses. This review summarizes the main types of nanomaterials used in sensing devices, highlighting their optical properties, synthesis methods, and other parameters. It also focuses on the analytical performances of different optical sensing strategies, including the use of pattern recognition algorithms and polymeric-based films. Furthermore, the review discusses the advances in optical chemical sensors using nanomaterials of different dimensionalities.
MATERIALS TODAY NANO
(2023)
Article
Biotechnology & Applied Microbiology
Joan Petrus Oliveira Lima, Aluisio Marques da Fonseca, Gabrielle Silva Marinho, Matheus Nunes da Rocha, Emanuelle Machado Marinho, Helcio Silva dos Santos, Rafael Melo Freire, Emmanuel Silva Marinho, Pedro de Lima-Neto, Pierre Basilio Almeida Fechine
Summary: This work synthesizes 12 phenol and chromone derivatives and explores their potential as therapeutic alternatives for combating SARS-CoV-2. The study identifies derivative 4 with the best energy bond to the S-glycoprotein target. Molecular simulations reveal that derivative 250 exhibits strong inhibitory activity against SARS-CoV-2. Overall, this research employs computational methods to design efficient molecular structures and aims to contribute to the development of effective therapeutic strategies against COVID-19.
Article
Materials Science, Multidisciplinary
Prabhakaran Thandapani, Radhamanohar Aepuru, Fanny Beron, Mangalaraja Ramalinga Viswanathan, Kokkarachedu Varaprasad, Fabio Luis Zabotto, Jose A. Jimenez, Juliano C. Denardin
Summary: In recent days, there is increasing interest in the development of multicaloric materials for cooling application, and multiferroic materials are being considered as suitable alternatives to conventional refrigerants. A study was conducted on the fabrication of poly(methyl methacrylate)/poly(vinylidenefluoride-co-hexafluoropropylene) (PMMA/PVDF-HFP) blend and PMMA/PVDF-HFP/Zn0.5Cu0.5Fe2O4 flexible multiferroic nanocomposite films. The results showed that PMMA/PVDF-HFP/Zn0.5Cu0.5Fe2O4 nanocomposite films exhibited both magnetocaloric and magnetoelectric effects.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Beatriz Brito, Maria Rosaria Ruggiero, Thomas W. Price, Milene da Costa Silva, Nuria Genicio, Annah J. Wilson, Olga Tyurina, Veronika Rosecker, Thomas R. Eykyn, Manuel Banobre-Lopez, Graeme J. Stasiuk, Juan Gallo
Summary: Manganese dioxide (MnO2)-based nanostructures were prepared using a one-pot reaction, and Pt(iv) prodrugs were used as redox-responsive theranostics for cancer therapy. The cytotoxicity of these nanostructures was evaluated and found to be as effective as the clinical chemotherapeutic drug cisplatin in 3D cell models. The nanostructures also exhibited strong ON/OFF magnetic resonance (MR) contrast in response to reducing agents and induced a significant and long-lasting T-1 signal enhancement in tumor-bearing mice.
Article
Chemistry, Applied
Ana Raquel Bertao, Viktoriya Ivasiv, Cristina Almeida-Aguiar, Patricia R. Correia, Antonio M. Fonseca, Manuel Banobre-Lopez, Fatima Baltazar, Isabel C. Neves
Summary: This study developed a zeolite-based delivery system (ZDS) using silver and 5-Fluorouracil as antimicrobial and antineoplastic agents. The ZDS was characterized and its antimicrobial properties were investigated, showing better antibacterial effectiveness for the ZDS containing both silver and 5-FU.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Medicinal
Matheus da Silva Campelo, Cristine Soares Vidal de Menezes, Cecilia Brilhante Aragao, Rebeca Colares Tome, Matheus Morais Saraiva, Lorena Mara Alexandre e Silva, Nagila Maria Pontes Silva Ricardo, Luzia Kalyne Almeida Moreira Leal, Maria Elenir Nobre Pinho Ribeiro
Summary: The present study isolated and characterized polysaccharides from Agaricus subrufescens and evaluated their cytocompatibility against human cells. The polysaccharides were found to contain glucose, galactose, and mannose as main monosaccharides. They showed low toxicity against human blood cells and were able to modulate the inflammatory response of neutrophils.
REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY
(2023)
Article
Chemistry, Medicinal
Tiago Rocha Nogueira, Igor Mesquita Figueredo, Joao Henrique Silva Luciano, Antonio Calixto Lima, Aluisio Marques da Fonseca, Luzia Kalyne Almeida Moreira Leal, Mary Anne Sousa Lima, Alice Maria Costa Martins, Emmanuel Silva Marinho, Jackson de Queiroz Malveira, Pedro de Lima Neto, Fatima Miranda Nunes, Maria Alexsandra de Sousa Rios, Antonia Torres avila Pimenta
Summary: This work presents an optimization of the extraction and purification processes of anacardic acids mixture and assesses their potential as an antichagasic drug. The purified mixture was obtained through chromatography techniques and showed cytotoxicity and trypanocidal effects. The results suggest that the anacardic acid mixture can be a promising and economically viable bio-product for antichagasic treatment.
REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY
(2023)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)