Article
Environmental Sciences
Qiubai Deng, Zhenyu Lai, Tao Yan, Jie Wu, Mengliang Liu, Zhongyuan Lu, Shuzhen Lv
Summary: The study investigates the compressive strength, microstructure, pH, and leaching toxicity of solidified forms by adding different amounts of Cr3+ into MPC. It was found that increasing Cr3+ content decreases the setting time of MPC, while reducing the M/P ratio can enhance the compressive strength of the matrix. The presence of Cr3+ alters the system's pH and affects the morphology of hydration products.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Construction & Building Technology
Yang Fei, Qing Wu, Hongli Ma, Rongrong Yin, Muhammad Akbar, Ning Yang, Yinjie Lu, Kailong Lu
Summary: To improve the corrosion protection properties of magnesium ammonium phosphate cement-based coatings, zinc oxide and aluminum tripolyphosphate were used as additives, and metakaolin and aluminum tripolyphosphate were used as admixtures for compound modification. The results showed that different additives could improve the corrosion resistance of the coatings, and the magnesium ammonium phosphate cement-based coatings exhibited good corrosion resistance in the salt spray test.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Environmental Sciences
Renjie Mi, Zhibin Zhang, Weiming Ji, Shichang Liu, M. F. Kai, Kui Lin, Yongshan Tan
Summary: The solidification/stabilisation behaviours of Zn2+ in magnesium potassium phosphate cement (MKPC) were investigated through experiments and density functional theory (DFT) study. The addition of Zn2+ reduced the compressive strength of MKPC by delaying the formation of MgKPO4 center dot 6H(2)O and exhibiting lower binding energy compared to Mg2+. Zn2+ existed as Zn-2(OH)PO4 in MKPC and had little influence on the structure of MgKPO4 center dot 6H(2)O.
ENVIRONMENTAL RESEARCH
(2023)
Review
Environmental Sciences
Keshav Goyal, Harsh Goel, Pritika Baranwal, Aman Dixit, Fahad Khan, Niraj Kumar Jha, Kavindra Kumar Kesari, Pratibha Pandey, Avanish Pandey, Mercilena Benjamin, Ankit Maurya, Vandana Yadav, Rana Suryauday Sinh, Pranay Tanwar, Tarun Kumar Upadhyay, Sandeep Mittan
Summary: Environmental mutagens have the potential to induce a wide range of mutations in humans and can lead to physiological, biochemical, and genetic modifications. The genotoxic effects on germ cells can have lasting impacts on health, and understanding the molecular mechanisms of physical and chemical mutagens is crucial for preventing DNA damage, carcinogenesis, and other disorders affecting human health. Various tests, such as the Ames test and Mutatox test, are important for detecting mutagenic factors in the environment and ongoing research is needed to further explore the impact of environmental mutagens on humans and animals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Construction & Building Technology
Fei Liu, Baofeng Pan, Peng Cao, Changjun Zhou
Summary: This study focused on the interfacial transition zone (ITZ) between magnesium phosphate cement (MPC) paste and Portland cement paste (PCP), exploring bonding characteristics and interfacial shear strengths. Through various analyses and experiments, it was found that the repair interface using MPC with PCP exhibited good bonding, with in-depth understanding of the damage behavior and constitutive relation of the interface.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Biology
Zhenchuan Han, Bo Wang, Bowen Ren, Yihao Liu, Nan Zhang, Zheng Wang, Jianheng Liu, Keya Mao
Summary: Magnesium potassium phosphate cement (MKPC) was evaluated for its biomechanical properties and compared with polymethyl methacrylate (PMMA) bone cement. MKPC showed better mechanical parameters and fatigue performance than PMMA. The microstructure of MKPC exhibited irregular tightly packed crystals, which improved its mechanical strength. MKPC demonstrated good biocompatibility and met the clinical application requirements. Therefore, MKPC has excellent potential for orthopedic applications.
Article
Multidisciplinary Sciences
Roberto E. Bruna, Christopher G. Kendra, Eduardo A. Groisman, Mauricio H. Pontes
Summary: Phosphorus is essential for biological molecules in bacteria, but excessive intake can lead to cytoplasmic Mg2+ deficiency, affecting bacterial growth and viability. Bacteria limit Pi uptake to prevent this, showing a regulatory logic based on the connection to cytoplasmic Mg2+ homeostasis.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Construction & Building Technology
Baoying Yu, Jianwei Zhou, Baojun Cheng, Wen Yang
Summary: The study found that the hardened MPC stone is a ceramic-like structure, which will be disrupted when aggregate is added, resulting in a weak interface transition zone, but still maintaining a high compressive strength.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Rui Xiao, Zhenyu Lai, Xuanzhang Luo, Zhi Liu, Mengliang Liu, Qiubai Deng, Jiawei Chen, Zhongyuan Lu, Shuzhen Lv
Summary: The introduction of sodium ions can modify the crystal structure of magnesium phosphate cement (MPC) and effectively improve its mechanical properties, particularly flexural and compressive strength.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Construction & Building Technology
Liang Jia, Fangli Zhao, Kai Yao, Hongjian Du
Summary: This study focuses on investigating the bond performance of mortar with magnesium phosphate cement as a novel-type repair material, and finds that incorporating ferroaluminate cement can significantly enhance the mechanical properties and water resistance of the composite cement. The rough substrate interface contributes to the improvement of flexural bond strength.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Construction & Building Technology
Danqian Wang, Zhicheng Liu, Changhui Yang
Summary: This study explores the passivation of mild steel embedded in magnesium potassium phosphate cement-calcium sulphoaluminate cement blended paste. The results show that adding 30% calcium sulphoaluminate in magnesium potassium phosphate cement leads to higher passivity of mild steel compared to Portland cement paste. The increased passivity is attributed to the higher pH and phosphate concentration in the pore solution, as well as the formation of iron phosphate and Fe2+ oxide in the passive film of MKPC-30%CSA.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Hu Feng, Zeya Li, Weiqiang Wang, Guanghui Liu, Zhe Zhang, Danying Gao
Summary: This study developed a ductile fibre reinforced magnesium phosphate cement-based composite (DFRMC) with superior deflection hardening capacity, investigating the effects of different factors on its properties through experimental program and introducing new indexes for evaluating the hardening capacity. The DFRMC achieved high compressive strength, nominal flexural strength, and investigated the microstructure of the material.
CEMENT & CONCRETE COMPOSITES
(2021)
Article
Chemistry, Multidisciplinary
Vetharaj HephzibahRajam Arkin, Uttamchand Narendrakumar, Harishkumar Madhyastha, Inderchand Manjubala
Summary: Injectable calcium phosphate cement is a promising biomaterial for hard tissue repair, with recent developments in magnesium and strontium-doped cements showing improved setting time, mechanical strength, and cell attachment. The research aims to develop suitable self-setting cements with good biocompatibility, utilizing synthesized hydroxyapatite and additives for enhanced properties.
Article
Construction & Building Technology
Guosheng Zhang, Qiang Wang, Yue Li, Mingzhong Zhang
Summary: This study systematically investigates the evolution of phase composition, microstructure, and micro-mechanical properties of magnesium phosphate cement (MPC) and their influence on macroscopic mechanical properties. The microstructure of MPC is primarily composed of potassium magnesium phosphate hexahydrate (MKP) crystals and a hybrid region of magnesium oxide and amorphous hydration products. The elastic modulus and hardness of MKP crystals are 20.18 GPa and 1.15 GPa, respectively. The macroscopic strength of MPC is mainly determined by its pore structure rather than the micro-mechanical properties of hydration products.
CEMENT AND CONCRETE RESEARCH
(2023)
Article
Construction & Building Technology
Lei Peng, Bing Chen
Summary: Magnesium phosphate cement (MPC) can be used as a fast sludge curing agent, and appropriately reducing the reaction rate can increase strength. The retarder reduces the reaction rate and increases strength, indicating that strength is affected by the rate of formation of hydration products.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
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)