Article
Chemistry, Physical
Achraf Blout, Jerome Pulpytel, Shinsuke Mori, Farzaneh Arefi-Khonsari, Christophe Methivier, Alain Pailleret, Claude Jolivalt
Summary: The study focused on nano-structuring and functionalizing graphite using plasma treatments and immobilizing laccase as a biocatalyst for enzymatic biofuel cell cathode. The optimized parameters of atmospheric pressure plasma jet treatment led to a four-fold enhancement in oxygen reduction reaction current density on carbon nanowalls. The efficient DET transfer was confirmed by the orientation of oxidized laccase covalently immobilized on the electrode surface.
APPLIED SURFACE SCIENCE
(2021)
Article
Biophysics
Sara Bocanegra-Rodriguez, Carmen Molins-Legua, Pilar Campins-Falco, Fabien Giroud, Andrew J. Gross, Serge Cosnier
Summary: The non-covalent modification of carbon nanotube electrodes with pyrene derivatives is a versatile approach to enhance the electrical wiring of enzymes for biosensors and biofuel cells. The study found that pyrene-modified electrodes showed improved catalytic reduction with horseradish peroxidase (HRP), indicating great potential for biosensing and biofuel cell applications.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Analytical
Monica Mediavilla, Monica Revenga-Parra, Cristina Gutierrez-Sanchez, Lourdes Hernandez-Apaolaza, Felix Pariente, Encarnacion Lorenzo
Summary: A new fluorescent assay for total polyphenol determination based on the bioconjugate formed between laccase enzyme and carbon nanodots has been developed. The study showed that bioconjugation does not inhibit enzymatic activity and the decrease in fluorescence is mainly due to electron transfer processes.
Article
Chemistry, Multidisciplinary
Jungyeon Ji, Seongjun Kim, Yongjin Chung, Yongchai Kwon
Summary: Polydopamine (PDA) is used as a biocompatible mediator for fabricating glucose oxidase (GOx) based bioanode of enzymatic biofuel cells (EBFCs). Through the autoxidation and polymerization of dopamine monomer, spherical PDA particles are well synthesized, and their chemical and optical characteristics are verified. The durability of the bioanode is improved by introducing polyethyleneimine (PEI) as a catalyst, which effectively suppresses the leaching out of PDA and GO(x) molecules. The suggested new catalyst shows better performance and higher power density in EBFC.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Alice Sciortino, Francesco Ferrante, Gil Goncalves, Gerard Tobias, Radian Popescu, Dagmar Gerthsen, Nicolo Mauro, Gaetano Giammona, Gianpiero Buscarino, Franco M. Gelardi, Simonpietro Agnello, Marco Cannas, Dario Duca, Fabrizio Messina
Summary: Carbon dots, when coupled with carbon nanotubes, demonstrate stable electronic coupling and efficient photoinduced electron transfer, leading to high degree of charge separation and conduction. These nanohybrids exhibit significant photocatalytic properties, showing promise for applications in artificial photocatalysis and photosynthesis.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Review
Green & Sustainable Science & Technology
Haroon Khan, Muhammad Tanveer, Cheol Woo Park, Gyu Man Kim
Summary: Enzymatic biofuel cells (EBFCs) are a promising technology that utilizes enzymes as biocatalysts for clean energy production. Integrating EBFCs into microfluidic architecture allows for their application in portable, implantable, and wearable microelectronics. However, challenges such as inefficient fuel oxidation, short lifetimes, and limited power density hinder their development. This review comprehensively discusses the attributes, microfabrication techniques, potential applications, and challenges of microfluidic EBFCs, providing insights into the past, present, and future of this emerging green technology.
INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY
(2023)
Article
Environmental Sciences
Chien-Yu Chen, Yi-Chin Cho, Yi-Pin Lin
Summary: In this study, multi-walled carbon nanotubes (MWCNT) were utilized to activate peroxydisulfate (PDS) for the degradation of 2,4-dichlorophenol (2,4-DCP), and the effects of solution pH, PDS concentration, 2,4-DCP concentration, and MWCNT loading on the degradation process were investigated. The results indicated that surface reactions involving both surface-bound radicals and direct electron transfer were responsible for 2,4-DCP degradation, with the rate increasing with higher solution pH, PDS concentration, and MWCNT loading. Reusability tests suggested that surface sites responsible for surface-bound radical formation were deactivated after PDS activation, while those responsible for direct electron transfer remained active.
Article
Energy & Fuels
Eiichiro Takamura, Taku Ohnishi, Hiroaki Sakamoto, Takenori Satomura, Shin-ichiro Suye
Summary: This study demonstrates that controlling the density of immobilized enzyme can improve the mobility of multicopper oxidase and enhance the electron transfer efficiency between enzyme and electrode. Electrodes with low density of immobilized enzyme show better electrochemical performance and are suitable for use in biofuel cells.
JOURNAL OF PHYSICS-ENERGY
(2021)
Article
Materials Science, Multidisciplinary
Mohammadali Sheikholeslam, Piyush Nanda, Alireza Sanati, Mark Pritzker, P. Chen
Summary: Mediatorless enzymatic biosensors based on direct electron transfer are stable and exhibit excellent electrocatalytic performance. In this study, the direct electrochemistry of hemoglobin (Hb) immobilized on a glassy carbon electrode modified with EFK8 peptide and single-walled carbon nanotubes (SWNTs) was investigated. The resulting biosensor showed high activity for hydrogen peroxide (H2O2) detection with a linear range of 20-960 μM and a detection limit of 7.54 μM (S/N = 3). The EFK8-SWNT hybrid layer provides a promising approach for non-covalent enzyme immobilization in mediatorless enzymatic biosensors.
Article
Materials Science, Textiles
Hong Dinh Duong, Jong Il Rhee
Summary: In this study, the use of enzymes, such as glucose oxidase (GOD) and laccase (LAC), improved the reduction of indigo to leuco-indigo by glucose. These enzymes acted as electron carriers from reduced glucose or directly transferred electrons to indigo molecules, increasing the turnover rate of electron flow between glucose and indigo. As a result, leuco-indigo production was improved by 2-5 times compared to the rate without enzymes. Enzymatically reduced indigo was then used for dyeing ramie fabric.
FIBERS AND POLYMERS
(2023)
Review
Energy & Fuels
Linda Barelli, Gianni Bidini, Dario Pelosi, Elena Sisani
Summary: Enzymatic biofuel cells offer potential for a wide range of applications and exhibit excellent bio-catalytic properties, but face challenges in terms of long-term stability and high power output, indicating that this technology is still in the early stages of development.
Article
Chemistry, Physical
Jichao Sun, Zuobing Yin, Xinming Xu, Long Su, Liqiang Zheng
Summary: Recent research has focused on the preparation of different carbon nanotube-based adsorbent materials via chemical functionalization. These materials, characterized by their large special surface area, good mechanical properties, and recyclability, show potential application in water treatment. This study employs molecular dynamics simulation to investigate the adsorption of oil droplets from water by cross-linked carbon nanotubes (CLCNTs). The findings demonstrate that the length of the cross-linker and the degree of cross-linking determine the adsorption and recyclability capacity. The CL-CNTs exhibit good recyclability for oil molecules from wastewater and different organic pollutants can be recycled through various procedures.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Chemistry, Multidisciplinary
Sooyoun Yu, Nosang V. Myung
Summary: This review summarizes methods to improve the DET rate for enhancing enzymatic fuel cell performances, focusing on more recent works in the past 10 years. Progress on the application of DET-enabled EFC to some biomedical and implantable devices is also reported.
FRONTIERS IN CHEMISTRY
(2021)
Article
Engineering, Chemical
Sumona Paul, Sagar Roy, Somenath Mitra
Summary: This study developed a carbon nanotube immobilized membrane for microfiltration dewatering of butanol. The carbon nanotubes enhanced the membrane hydrophobicity and butanol permeation, resulting in high preconcentration levels. The water-butanol mixtures exhibited different separation efficiencies in different concentration zones.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Nanoscience & Nanotechnology
Md Humayun Kabir, Erik Marquez, Grace Djokoto, Maurice Parker, Talia Weinstein, William Ghann, Jamal Uddin, Meser M. Ali, Maksudul M. Alam, Max Thompson, Altug S. Poyraz, Huggins Z. Msimanga, Mohammed M. Rahman, Michael Rulison, John Cramer
Summary: This report describes and characterizes an enzymatic biofuel cell that is simple, mediator-free, and glucose-powered. It utilizes biocompatible materials and features a two-dimensional mesoporous thermally reduced graphene oxide (rGO) host electrode. The use of biocompatible, low-cost filter paper (FP) as a support material for the host electrode is also explored. The cell shows high power density and stable power output under ambient conditions.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Engineering, Chemical
Zhiyong Xu, Zhongjin He, Xuebo Quan, Delin Sun, Zhaohong Miao, Hai Yu, Shengjiang Yang, Zheng Chen, Jinxiang Zeng, Jian Zhou
Summary: Molecular simulation plays a crucial role in studying the properties of complex fluid systems with charges, especially electrostatic interactions. However, challenges remain in improving accuracy and reducing computational costs, as well as understanding how electrostatic interactions regulate specific properties of complex fluids.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Guomin Ding, Xiaolong Li, Zhiyong Xu, Honglei Chen, Cong Xu, Min Wang
Summary: Image sensors based on ZnSe and graphene materials exhibit stable performance under large strains and high responsivity.
IEEE ELECTRON DEVICE LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jinxiang Zeng, Shengjiang Yang, Hai Yu, Zhiyong Xu, Xuebo Quan, Jian Zhou
Summary: Hydroxyapatite (HAP) is a vital inorganic component in biological minerals, with more than 90% of total citrate accumulating in human bones and biomineralized tissues. Molecular dynamics simulations show that citrate can aid polyaspartic acid in stable adsorption on the HAP surface, acting as a template for mineralization and contributing to a narrower orientation distribution for PASP with the help of CIT.
Article
Multidisciplinary Sciences
Yang Wang, Kaiju Li, Gaolian Xu, Chuan Chen, Guiqin Song, Zaizai Dong, Long Lin, Yu Wang, Zhiyong Xu, Mingxia Yu, Xinge Yu, Binwu Ying, Yubo Fan, Lingqian Chang, Jia Geng
Summary: A platform integrating a portable detector and a novel microwell array biochip was developed for rapid detection of SARS-CoV-2, showing high sensitivity and specificity in clinical trials. The platform has the potential for rapid and user-friendly diagnosis of COVID-19 among other infectious pathogens.
Article
Chemistry, Physical
Shengjiang Yang, Daohui Zhao, Zhiyong Xu, Hai Yu, Jian Zhou
Summary: In this study, the adsorption behavior of acetylcholinesterase on different nanomaterials was investigated using simulations. It was found that amino-functionalized carbon nanotubes (NH2-CNT) were more suitable for the immobilization of acetylcholinesterase.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Hai Yu, Shengjiang Yang, Zheng Chen, Zhiyong Xu, Xuebo Quan, Jian Zhou
Summary: Hydrophobins are widely used in the food, pharmaceutical, and chemical industries as potential protein emulsifiers. This study employed molecular dynamics simulations to investigate the adsorption orientation and conformation change of hydrophobin HFBI at the oil-water interface. The results showed that HFBI adsorbed at the interface with a patch-up orientation towards the oil phase, maintaining its secondary structure intact. The driving force for adsorption was primarily determined by van der Waals interactions, while the adsorption orientation and conformation were regulated by hydrophobic patches and key residues.
Article
Engineering, Chemical
Kai Wang, Guangzhen Li, Yanhong Li, Yuan Chen, Ling Zhang, Zhiying Zhu, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a novel amine alkyl siloxane (BTDMBA) was synthesized and used to capture SO2. The thermal decomposition temperature of BTDMBA is 160℃, comparable to that of ionic liquids (ILs), but with lower viscosity (125 mPa center dot s).
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Zhiyong Xu, Jian Zhou
Summary: In this study, multiscale simulations were conducted to investigate the effect of Na+ and Ca2+ ions on the activation of CDH on differently charged SAM surfaces. The results showed that both Na+ and Ca2+ can induce a conformation switch of CDH from an open state to a closed state, with Ca2+ having a stronger effect than Na+. However, high ionic strength of Ca2+ caused the CYT domain of CDH to be away from the NH2-SAM with low surface charge density. On the other hand, regardless of the ionic strength, the NH2-SAM surface with high surface charge density not only enhanced the CYT-surface interaction, but also achieved a closed state conformation, similar to the effect of Ca2+. Overall, this study provides molecular-level insights into the role of ion species and surface charge in modulating the structure, conformation, and activity of CDH on the SAM surface.
Article
Medicine, Research & Experimental
Zhihua Hu, Yurong Guan, Wanying Hu, Zhiyong Xu, Muhammad Ishfaq
Summary: Baicalin and baicalein are flavonoids with multiple therapeutic properties, including antibacterial, antiviral, anticancer, anticonvulsant, anti-oxidant, hepatoprotective, and neuroprotective effects. These properties are attributed to their ability to scavenge reactive oxygen species (ROS) and interact with various signaling molecules associated with different cellular processes. This review summarizes the molecular mechanisms underlying the chemopreventive and chemotherapeutic applications of baicalin and baicalein, with a particular focus on their effects on mitochondrial dynamics and functions.
IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES
(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)