Article
Construction & Building Technology
Soong Yeon Kim, Byeong Jun Cha, Shufang Zhao, Hyun Ook Seo, Young Dok Kim
Summary: The photocatalytic activities of two commercial TiO2 particles and their Fe-modified counterparts were studied under different conditions, showing that Fe-R996 exhibited higher activity than Fe-P25 under visible light and humid conditions.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Engineering, Environmental
Sandhya Mishra, Shaohua Chen, Ganesh Dattatraya Saratale, Rijuta Ganesh Saratale, Luiz Fernando Romanholo Ferreira, Muhammad Bilal, Ram Naresh Bharagava
Summary: The study identified a bacterium with high tolerance to Cr(VI) and effective reduction capabilities, making it a promising candidate for ecofriendly clean up of chromium contamination in polluted environments.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Materials Science, Ceramics
Min Ji Kang, Dang-Hyok Yoon
Summary: Motivated by the different chromaticity present in the sintered Al2O3 prepared from various same-grade powders, this study examined the probable factor that affects the color by surface chemistry. The results showed that surface hydroxyl ions play a significant role in determining the color of sintered Al2O3, and UV irradiation can alter their amount, leading to a change in color.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Salah M. El-Bahy, Javaria Arshad, Sana Munir, Khadija Chaudhary, Dalal Alhashmialameer, Diana Rakhmawaty Eddy, Muhammad Farooq Warsi, Muhammad Shahid
Summary: Bimetallic oxide BiSbO4 is a promising photocatalyst for environmental remediation, showing efficient degradation capabilities. XRD, SEM, and FT-IR techniques were employed to analyze the synthesized material.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Yuuki Mochizuki, Javzandolgor Bud, Jiaqian Liu, Miki Takahashi, Naoto Tsubouchi
Summary: This study investigated the physical properties and P adsorption performance of various iron hydroxides prepared by different methods. Among the iron hydroxides, those prepared with NH3/NH4Cl buffer (Fe(A)) showed the highest P adsorption performance. The specific surface area and OH species were found to be important factors affecting the adsorption performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Biology
Naima Mammate, Fatima Ezzahra El Oumari, Hamada Imtara, Salim Belchkar, Anissa Lahrichi, Ali S. Alqahtani, Omar M. Noman, Mahmoud Tarayrah, Tarik Sqalli Houssaini
Summary: The plant Saussurea costus (Falc) Lipsch has various biological activities and has been found to be effective in treating and preventing diseases such as cancer, diabetes, and hemorrhoids. This study investigated the antilithiatic and antioxidant activities of aqueous and ethanolic extracts of this plant. The results showed that the extracts were effective in reducing cystine stone mass and inhibiting calcium oxalate crystallization, while also exhibiting free radical scavenging activity.
Article
Chemistry, Physical
Karla L. L. Pascoal, Sonia M. C. Siqueira, Antonia F. V. de Amorim, Nagila M. P. Silva Ricardo, Jane E. S. A. de Menezes, Luana C. da Silva, Tamara G. de Araujo, Francisco W. Q. Almeida-Neto, Emmanuel S. Marinho, Selene M. de Morais, Gilberto D. Saraiva, Pedro de Lima-Neto, Helcio S. dos Santos, Alexandre M. R. Teixeira
Summary: In this study, bixin was successfully encapsulated in galactomannan using spray drying technique, providing greater stability to this carotenoid. The encapsulation efficiency was higher than 90%, showing that galactomannan was a good encapsulating agent. Microencapsulation was found to significantly protect bixin and allow for homogeneous and gradual release of the pigment.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Inorganic & Nuclear
Hari Shankar Biswas, Subhashis Bala, Amit Kumar Kundu, Indranil Saha, Sandeep Poddar, Sanjit Sarkar, Prasenjit Mandal
Summary: This study successfully synthesized graphene oxide (GO) sheets with a bi-directional lamellar layer structure and analyzed and validated them through various instrumental characterizations. The morphology of GO thin film was also described in this experimental study.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Environmental Sciences
Nowshin Nawar, Md. Mostafizur Rahman, Farah Noshin Chowdhury, Shumayta Marzia, Mir Mohammad Ali, Md. Ahedul Akbor, Md. Abu Bakar Siddique, Mst. Afifa Khatun, Md. Shahjalal, Roksana Huque, Guilherme Malafaia
Summary: This study investigated microplastic pollution for the first time in water, sediment, and fish samples from the Sundarbans region in Bangladesh. The results showed that all analyzed samples contained microplastics, with an average of 2.66 x 103 particles/L in water samples and 1.57 x 105 particles/kg in sediment samples. The gastrointestinal tract of the fish species O. pama and H. nehereus had the highest accumulation of microplastics. Most of the particles were smaller than 1 mm, and black-colored particles were dominant. The analysis revealed the presence of seven polymer types, with polyamide being the most abundant. SEM analysis showed the morphology of plastic samples and adsorbed particles on their surface, and the spatial distribution of microplastics indicated higher levels in areas with greater human intervention. Therefore, this study demonstrates that the Sundarbans mangrove forests are heavily contaminated with microplastics, and the local fisheries can be a potential source of human exposure to these pollutants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Parthasarathy Surya, Arumugam Sundaramanickam, Ajith Nithin, Parthasarathy Iswarya
Summary: Synthetic plastics have become hazardous wastes, posing a threat to environmental health, so alternatives are needed. This study aimed to prepare corn starch-based bioplastics using fish scales as an alternative to synthetic plastics. Different bioplastic films containing various percentages of fish scale powder and corn starch were prepared and analyzed for their properties. The mixture of fish scale powder and corn starch powder in the ratio of 1:3 yielded the best results, making it a viable alternative to synthetic plastics.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Analytical
Guangyu Liu, Yujuan Hua, Ronda Gras, Jim Luong
Summary: An analytical strategy utilizing discrete frequency infrared imaging technique was developed to improve sample throughput in microplastic analysis. The concept demonstration study achieved high identification rates with a reduced scanning area, demonstrating the potential of this technique to enhance sample throughput.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Jihye Lee, Adama Konate, Clement Guibert, Jessem Landoulsi
Summary: In this study, a biomimetic method for growing a hybrid calcium phosphate (CaP) - collagen coating is described. The versatility of layer-by-layer (LbL) method is explored to incorporate collagen and alkaline phosphatase (ALP), and control their organization and bioactivity. The presence of collagen fibrils in the LbL film plays a crucial role in the growth mechanism of the biomimetic mineral layer. The approach provides a straightforward way for designing biomimetic hybrid coatings in biomedical applications.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Paolo Canepa, Giuseppe Firpo, Elena Gatta, Roberto Spotorno, Paolo Giannoni, Rodolfo Quarto, Maurizio Canepa, Ornella Cavalleri
Summary: We propose a two-step surface modification process to tailor the micro and nano morphology of niobium oxide layers. Firstly, niobium undergoes anodization in a solution containing calcium and phosphorus, followed by acid etching. The effects of anodization time and applied potential on surface morphology are investigated, and subsequently, the surface nano morphology is tuned by acid etching. In vitro tests show that the etching-induced nanostructure effectively promotes cell adhesion and spreading onto the niobium oxide surface.
Article
Engineering, Environmental
Natalia Mayordomo, Diana M. Rodriguez, Andre Rossberg, Harald Foerstendorf, Karsten Heim, Vinzenz Brendler, Katharina Mueller
Summary: This study comprehensively investigates the retention of Fe(II)-Al(III)-Cl LDH towards pertechnetate (TcO4-), showing that Tc retention yield is higher than 80% from pH 3.5 to pH 10.5, especially at low NaCl concentrations. Molecular scale structural information on the retention mechanism is provided through a combination of vibrational and X-ray absorption spectroscopy. XANES confirms Tc(VII) reduction to Tc(IV) and consecutive Tc(IV) interaction with the solid, while EXAFS reveals two different mechanisms of Tc(IV) interaction with hematite.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Paola Fermo, Mario Colella, Marco Malagodi, Giacomo Fiocco, Michela Albano, Silvia Marchioron, Vittoria Guglielmi, Valeria Comite
Summary: The surface coating on a marble statue from the Renaissance period stored in Milan was studied and found to have a degradation layer composed of gypsum, likely due to exposure to outdoor environment and atmospheric pollution. Additionally, it was suggested that the chemical nature of the coating applied in the late 19th century could have contributed to the surface alteration.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Biophysics
Cristina Potrich, Anna Pedrotti, Cecilia Pederzolli, Lorenzo Lunelli
Summary: This study developed different functional surfaces for capturing exosomes and verified their effectiveness through experiments. Among them, the negatively-charged surface performed the best, capturing a large number of exosomes and successfully analyzing their biomarkers.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Brojendra Nath Saren, Srushti Mahajan, Mayur Aalhate, Rahul Kumar, Essha Chatterjee, Indrani Maji, Ujala Gupta, Santosh Kumar Guru, Pankaj Kumar Singh
Summary: This study developed P-selectin-targeted dasatinib nanoparticles coated with chitosan and fucoidan (DST-CH-FUC-NPs), which showed sustained release, reduced hemolytic potential, increased cytotoxicity and cellular uptake compared to free dasatinib. These nanoparticles also demonstrated enhanced ROS production, mitochondrial membrane potential damage, apoptosis induction, cell migration inhibition, and disruption of lysosomal membrane integrity.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Weiping Deng, Xiaohui Li, Ya Li, Zhongbing Huang, Yulin Wang, Ning Mu, Juan Wang, Tunan Chen, Ximing Pu, Guangfu Yin, Hua Feng
Summary: This study demonstrates the importance of chirality in nerve repair by constructing a GO-phenylalanine derivative hydrogel system. In vivo experiments show that the dextro group significantly improves functional recovery and histological restoration in rat sciatic nerve repair models. The doped GO promotes angiogenesis and myelination. These results suggest that chirality plays a crucial role in promoting nerve regeneration.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Xiaoyan Wang, Jin Gao, Yu Gao, Linlin Zhang, Congchao Xu, Qintong Li, Lin Li, Jianliang Xue
Summary: In this study, a highly effective surfactant producer strain, Bacillus Cereus GX7, was isolated from the oil tank bottom sludge of Shengli Oil Field in China. The biosurfactant produced by GX7 was identified as surfactin, a lipopeptide surfactant, through TLC, FT-IR, and LC-MS/MS analysis. The fermentation process of GX7 was optimized using single-factor experiments, focusing on the composition of fermentation medium and fermentation conditions. Glucose and peptone were found to be the best carbon and nitrogen sources, and the optimum temperature, inoculum amount, pH, rotation speed, and fermentation time for the strain were determined to be 30°C, 1%, 7.5, 150 rpm, and 48 h, respectively. After optimization, the surface tension and emulsification index of the fermentation broth were 26.84 mN/m and 57.84%, respectively. Furthermore, the biosurfactant produced by GX7 demonstrated good stability over a wide range of temperature, pH, and salt concentration.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Rodney Marcelo do Nascimento, Christine Grauby-Heywang, Houssem Kahli, Nesrine Debez, Laure Beven, Ivan Helmuth Bechtold, Touria Cohen Bouhacina
Summary: This article presents a theoretical model based on thermodynamic rules to assess the early stages of bacterial biofilm formation on different material surfaces. By utilizing morphological characteristics of bacteria and Atomic Force Microscopy images, the model generates a dataset of energetically minimized states, which can be correlated with bacterial adhesion states.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Filipa A. L. S. Silva, Licinia Timochenco, Raquel Costa-Almeida, Jose Ramiro Fernandes, Susana G. Santos, Fernao D. Magalhaes, Artur M. Pinto
Summary: The study demonstrates that by photoreducing nanosized graphene oxide using ultraviolet radiation, nanometric particles with high light-to-heat conversion efficiency and water stability can be obtained. These nanomaterials exhibit high absorption in the near-infrared region and show no cytotoxicity towards human cells, indicating their potential for safe therapy.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
D. Costa, V. De Matteis, F. Treso, G. Montani, M. Martino, R. Rinaldi, M. Corrado, M. Cascione
Summary: This review primarily discusses the relationship between contact lens discomfort (CLD) and the surface properties of contact lenses (CLs), specifically the coefficient of friction (CoF). The review emphasizes the importance of introducing a standardized protocol for measuring CoF and calls for a more precise evaluation of the relationship between surface properties and comfort in CLs users.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Debdip Brahma, Tamal Sarkar, Rupal Kaushik, Akshay Narayan Sarangi, Amar Nath Gupta
Summary: This in-vitro study evaluates the effect of reactive oxygen species (ROS) on the structural rearrangement of elastin. The results show that oxidative stress leads to a decrease in protein size and changes in secondary structure, potentially promoting protein aggregation. This study is important for therapeutics aiming to prevent elastin degradation and aging.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Xin Yang, Qiang Wang, Chaoxi Yan, Degang Huang, Yinchang Zhang, Huazheng He, Shouliang Xiong, Congming Li, Pingbo Chen, Tingjun Ye, Dan Hu, Lei Wang
Summary: This study presents a practical and effective strategy to improve osseointegration in patients with osteoporosis. By coating titanium implants with polydopamine followed by strontium modification, the bi-functional implants promote bone regeneration and immune regulation. The results show good biocompatibility, sustained release of strontium ions, and stable osseointegration between bone tissues and implants.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Sengwang Fu, Jianping Zhu, Zhijun Jiang, Yue Cao, Yufei Chen, Lihao Zhang, Sunlong Li, Weipeng Lu, Chengbin Miao, Qing He, Qi Li, Weixing Zhang, Lehao Ren, Yachun Li, Hongchao Shi, Cihui Liu
Summary: Effective management of biofluids is crucial for in vivo surgical interventions. Recent advances include self-sealing needles, drug-eluting stents, and shear-thinning hydrogels. However, complications associated with intestinal mucosal injury and secondary damage still persist. In this study, researchers developed an interpenetrating Janus wettability stent coating that enables unidirectional draining of excessive biofluid. They also demonstrated directional biofluid movement using a self-pumping dressing with potential applications in biofluid collection and disease diagnosis through metal ion detection. This integrated system presents an opportunity for designing wound dressings with effective biofluid management and metal ion detection capabilities.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Maryam Hassani, Mojtaba Kamankesh, Mazda Rad-Malekshahi, Kobra Rostamizadeh, Farhad Rezaee, Ismaeil Haririan, Seyed Mojtaba Daghighi
Summary: Bacterial adhesion and biofilm formation on the surface of biomaterial implants is a critical problem, and a polymer brush coating with antiadhesive and antimicrobial properties has proven to be highly effective in resolving this issue.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Huaihong Zhang, Na Liu, Yuting Zhang, Hui Cang, Zhaosheng Cai, Ziqun Huang, Jun Li
Summary: A functionalized cationic polymer, CR-PQAC, was designed and synthesized for photothermal enhanced antimicrobial therapy. The CR-PQAC nanoparticles exhibited significant antibacterial activity and low cytotoxicity against mammalian cells.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Ipsita Sahu, Priyadarshi Chakraborty
Summary: Peptide nanotechnology bridges the gap between materials and biological worlds by utilizing self-assembly of short-peptide building blocks. Hydrogels engineered from these short peptides show great potential in biomedical applications, but their weak mechanical properties and limited functional diversity need to be addressed. Nanoengineering the networks of these hydrogels by incorporating small molecules, polymers, and inorganic/carbon nanomaterials can enhance their mechanical properties and expand their functional diversity.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Hao Wei, Yajun Gu, Ao Li, Panpan Song, Dingding Liu, Feihu Sun, Xiaofeng Ma, Xiaoyun Qian
Summary: In this study, a stable three-dimensional conductive hydrogel was prepared by cross-linking MXenes to Matrigel hydrogel. The conductive hydrogel promotes the proliferation and differentiation of NSCs, providing new strategies for neural tissue engineering.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)
Article
Biophysics
Yue Zhong, Xiaoli Ge, Juan Zhang, Qun Wei, Feng Wang, Yongke Zhong
Summary: The effect of oxygenic groups on the hemocompatibility of activated carbon was studied through liquid-phase oxidation and subsequent heat treatment. Results showed that the presence of oxygenic groups improved hemocompatibility, while their removal decreased it.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2024)