Article
Chemistry, Physical
Xuanye Leng, Ricardo J. Vazquez, Samantha R. McCuskey, Glenn Quek, Yude Su, Konstantin G. Nikolaev, Mariana C. F. Costa, Siyu Chen, Musen Chen, Kou Yang, Jinpei Zhao, Mo Lin, Zhaolong Chen, Guillermo C. Bazan, Kostya S. Novoselov, Daria V. Andreeva
Summary: The high electrical conductivity and low dimensionality of graphene are crucial for lightweight bioanodes in new-generation energy technologies. However, integrating graphene in biointerfaces is challenging due to its incompatible surface energy with living matter. We propose a sustainable chemical control method to achieve the desired surface hydrophilicity and conductivity of graphene nanowalls, enabling the formation of a lightweight, graphene-based, sponge bioanode. This novel graphene-based material shows stable and rapid response, with a biocurrent density of 135.35 mA m(-2) achieved within a few hours.
Article
Environmental Sciences
Yinchi Xu, Lanhua Liu, Erhuan Sun, Secil Tutar Oksuz, Zhi Zhang, Changsen Zhang, Wenlong Wang, Panpan Liu
Summary: This study investigates the impact of electron transport bifurcation on the performance of microbial electrochemical technologies with the presence of an alternative electron acceptor. The results show that the metabolic shift from current production to denitrification leads to changes in electron transfer efficiency, microbial community, and microbial structure in the bioanode. These changes are mainly attributed to the loss of exoelectrogens in the bioanode.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Chemistry, Multidisciplinary
Sophia Selvarajan, Hyunji Shim, Eunjeong Byun, Albert Kim, Seung Hyun Song
Summary: This study presents an acousto-nanodevice that can oxidize redox proteins under ultrasonic irradiation. By using surface-engineered barium titanate (BTO) nanoparticles with a gold half-coating, the nanodevice is capable of modulating the redox proteins and enabling unidirectional electron transfer. This new class of ultrasonically powered nano-sized protein redox agents has the potential to be a highly selective modulator for biological processes with deeper treatment sites.
Article
Chemistry, Analytical
Viktorija Teiserskyte, Jaunius Urbonavicius, Dalius Ratautas
Summary: This study reported the construction of a direct electron transfer biosensor based on NAD-dependent formaldehyde dehydrogenase, achieving a fast, highly sensitive detection of formaldehyde with high stability and selectivity.
Review
Biochemical Research Methods
Oren Bachar, Roy Cohen, Matan M. Meirovich, Yifat Cohen, Omer Yehezkeli
Summary: The advances in biotic-abiotic interfaced systems have great potential in bioanalytics and biocatalysis applications. The combination of nanoelements' unique electronic and optic properties with the selectivity and catalytic abilities of biotic materials can lead to superior features. These new nanobiohybrids may contribute to addressing global challenges such as alternative energy utilization and affordable biodiagnostics and therapeutics tools.
CURRENT OPINION IN BIOTECHNOLOGY
(2023)
Review
Biochemical Research Methods
Zhiguang Zhu, Haiyan Song, Yuanming Wang, Yi-Heng P. J. Zhang
Summary: The development of electrochemical biosensors has received significant attention, with protein engineering being used to enhance the properties of redox enzymes for applicable biosensors. This review focuses on recent advances in protein engineering for improving enzymatic catalysis, facilitating electron transfer and enzyme immobilization, and constructing allosteric protein biosensors. The pros and cons of different protein engineering strategies are briefly discussed, along with future perspectives.
CURRENT OPINION IN BIOTECHNOLOGY
(2022)
Article
Biophysics
Marie-Christin Viehauser, Erik Breslmayr, Stefan Scheiblbrandner, Franziska Schachinger, Su Ma, Roland Ludwig
Summary: The development of third generation biosensors relies on enzymes capable of direct electron transfer (DET), achieved by fusing a cytochrome domain to an enzyme. In this study, the chimeric enzyme NcCYT-GcGDH was successfully generated in large quantities, showing high catalytic activity and the ability to perform interdomain electron transfer and direct electron transfer via the fused cytochrome domain. The high current obtained on a simple, unmodified electrode at a relatively low redox potential provides a promising starting point for further optimization.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Analytical
Paulina K. Wells, Oleh Smutok, Zhong Guo, Kirill Alexandrov, Evgeny Katz
Summary: Advances in protein engineering have made it possible to create protein biosensors as alternatives to analytical and diagnostic methods. This study focuses on the construction of a protein biosensor array using an artificial variant of PQQ-glucose dehydrogenase, which addresses the challenges of sensitivity, multiplexing, and manufacturability. By immobilizing GDH protein on silica nanoparticles and monitoring changes in fluorescence, a highly sensitive biosensor array with low background and a wide dynamic range has been successfully developed for quantitative detection of drugs in biological fluids.
ANALYTICAL CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Tomohiro Komatsu, Kazuki Hishii, Michiko Kimura, Satoshi Amaya, Hiroaki Sakamoto, Eiichiro Takamura, Takenori Satomura, Shin-ichiro Suye
Summary: In this study, a bioanode was developed that could extract six electrons from a single molecule of L-proline via a three-enzyme cascade reaction. By immobilizing enzymes and using self-assembled monolayers and a microfluidic system, efficient electron transfer was achieved. The bioanode showed higher current density compared to a gold disc electrode, indicating potential for developing high-performance BFCs in the future.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Materials Science, Multidisciplinary
Lucy L. Coria-Oriundo, Santiago E. Herrera, Lucila P. Mendez De Leo, Fernando Battaglini
Summary: High-power density output in enzymatic fuel cells is crucial for reducing the size of self-powered implantable medical devices. This study investigates the use of binary sodium salts as doping ions in redox polyelectrolytes to improve adsorption and electron transfer in glucose oxidase/redox polyelectrolyte assemblies. The results show that bromide ions exhibit the highest absorption and electron transfer efficiency, making it the best choice for the construction of bioanodes. The application of bromide-doped branched polyethyleneimine in an O2-glucose enzymatic fuel cell achieves a power density output of 2.5 mW cm-2, which is state-of-the-art performance.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Biophysics
Kohei Ito, Junko Okuda-Shimazaki, Katsuhiro Kojima, Kazushige Mori, Wakako Tsugawa, Ryutaro Asano, Kazunori Ikebukuro, Koji Sode
Summary: Redesigned mutant Pcyb-AfGDH enzymes exhibit faster intramolecular electron transfer rates and higher DET current values, showing potential for application in continuous glucose monitoring systems.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Agricultural Engineering
Na Chu, Qinjun Liang, Wen Hao, Yong Jiang, Raymond Jianxiong Zeng
Summary: The development of low-cost biosensors for water monitoring is expected to reduce potential risks from contamination accidents. This study reported a novel micro-microbial electrochemical sensor using combined bioanode and biocathode as the sensing element. By adjusting the ratio of bioanode to biocathode, a lower power generation can be achieved with a similar or even higher toxic response. Additionally, the voltage output is affected by both flow rate and acetate concentration.
BIORESOURCE TECHNOLOGY
(2021)
Article
Electrochemistry
Juping You, Han Chen, Liangliang Xu, Jingkai Zhao, Jiexu Ye, Shihan Zhang, Jianmeng Chen, Zhuowei Cheng
Summary: The anodic potential adjustment can effectively enhance the performance of microbial fuel cells, improving hydrocarbon oxidation and power generation efficiency.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Jingkai Zhao, Ke Feng, Yi Lu, Zhuowei Cheng, Jiexu Ye, Yi Shen, Jun Hu, Jianmeng Chen, Shihan Zhang, Wei Li
Summary: This study proposes a pore matching strategy to improve the microbial fuel cell's (MFC) degradation capacity and power output. By embedding cells in a pore-matched sponge and establishing electron transfer nanowires, the MFC shows significant improvements in toluene degradation, power density, and coulombic efficiency.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Nandan Ghorai, Goutam De, Hirendra N. Ghosh
Summary: The study focuses on the hot plasmon mediated electron transfer and electron-phonon dynamics of gold nanoparticles in a glassy film matrix, revealing that the electron-phonon scattering time constant is faster in the presence of TiO2 and decreases with temperature.
Article
Chemistry, Physical
Dalius Ratautas, Eimantas Ramonas, Liucija Marcinkeviciene, Rolandas Meskys, Juozas Kulys
Article
Biophysics
Ruta Gruskiene, Tatjana Krivorotova, Ramune Staneviciene, Dalius Ratautas, Elena Serviene, Jolanta Sereikaite
COLLOIDS AND SURFACES B-BIOINTERFACES
(2018)
Article
Chemistry, Analytical
Eimantas Ramonas, Dalius Ratautas, Marius Dagys, Rolandas Meskys, Juozas Kulys
Article
Chemistry, Physical
Justina Gineityte, Rolandas Meskys, Marius Dagys, Dalius Ratautas
JOURNAL OF POWER SOURCES
(2019)
Review
Chemistry, Physical
Dalius Ratautas, Marius Dagys
Article
Biophysics
Lukas Ramasauskas, Rolandas Meskys, Dalius Ratautas
BIOSENSORS & BIOELECTRONICS
(2020)
Article
Chemistry, Physical
Eimantas Ramonas, Atefeh Shafaat, Marius Dagys, Tautgirdas Ruzgas, Dalius Ratautas
Summary: This study investigated the catalytic properties of citrate-capped gold nanoparticles and gold nanoparticle-protein conjugates, showing that gold nanoparticles form stable conjugates with proteins but do not increase enzyme activity. Under certain conditions, gold nanoparticles can mimic enzymatic reactions, emphasizing the need for specific measurements to differentiate between enzyme and gold nanoparticle-catalyzed reactions.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Analytical
Viktorija Teiserskyte, Jaunius Urbonavicius, Dalius Ratautas
Summary: This study reported the construction of a direct electron transfer biosensor based on NAD-dependent formaldehyde dehydrogenase, achieving a fast, highly sensitive detection of formaldehyde with high stability and selectivity.
Article
Chemistry, Multidisciplinary
Atefeh Shafaat, Rokas Zalneravicius, Dalius Ratautas, Marius Dagys, Rolandas Meskys, Rasa Rutkiene, Juan Francisco Gonzalez-Martinez, Jessica Neilands, Sebastian Bjorklund, Javier Sotres, Tautgirdas Ruzgas
Summary: This study introduces a simple and wireless biosensor design for glucose detection by incorporating an AgCl layer into the antenna. The wireless biosensor showed good agreement with a commercially available glucometer in measuring glucose in whole blood.
Article
Biophysics
Skomantas Serapinas, Justina Gineityte, Marius Butkevicius, Rapolas Danilevicius, Marius Dagys, Dalius Ratautas
Summary: This paper presents a new bioelectronic device for the detection of nuclease activity in various fluids. The developed sensor enables rapid and sensitive determination of DNase activity, with high accuracy and reproducibility demonstrated in real human saliva samples. The technology has the potential to improve nuclease quality control processes in the pharmaceutical/biotechnology industry and provide new insights into the importance of nucleases for medical applications.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Analytical
Eimantas Ramonas, Marius Butkevicius, Sergey Shleev, Marius Dagys, Dalius Ratautas
Summary: The study introduces a novel concept of an enzyme-driven pH electrode system composed of two electrodes, which requires no additional counter or reference electrodes and provides high-precision real-time pH monitoring. Additionally, an in-depth mechanistic study was presented to explain the relationship between electrode potential and pH dependence, offering new insights into the operational principles of bilirubin oxidase at different pH levels.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Multidisciplinary
Justas Miskinis, Eimantas Ramonas, Vidute Gureviciene, Julija Razumiene, Marius Gagys, Dalius Ratautas
Summary: In this paper, a biosensor based on a gold nanoparticle-modified platinum electrode was developed for the detection and quantification of total L-amino acids. The biosensor showed high sensitivity and a low limit of detection for hydrogen peroxide and L-amino acids, and could be applied for the measurement of relative loss of amino acids in patients undergoing renal replacement therapy. The capacitance-based measurement method used in conjunction with the biosensor electrode played a crucial role in achieving accurate measurements of low amino acid concentrations.
Article
Chemistry, Analytical
Julija Razumiene, Damiana Leo, Vidute Gureviciene, Dalius Ratautas, Justina Gaidukevic, Ieva Sakinyte-Urbikiene
Summary: Investigations of L-glutamate release can help identify new pathophysiological pathways related to L-glutamate and neurological diseases. A nitrogen-modified graphene oxide biosensor was developed through a one-pot hydrothermal reduction method and used to detect L-glutamate. The biosensor demonstrated stability, ease of preparation, and successful detection of L-glutamate in real samples. Furthermore, it was applied to investigate L-glutamate release in a specific rat strain.
Article
Biophysics
D. Ratautas, L. Tetianec, L. Marcinkeviciene, R. Meskys, J. Kulysa
BIOSENSORS & BIOELECTRONICS
(2017)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)
