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
Chemistry, Multidisciplinary
Joonyoung Lee, Kyuhwan Hyun, Yongchai Kwon
Summary: In this study, the performance of membraneless enzymatic biofuel cells was improved by utilizing a three-dimensional graphite felt electrode. The optimized electrode exhibited high power output and excellent design flexibility in a small cell kit.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Biophysics
Asta Kausaite-Minkstimiene, Algimantas Kaminskas, Almira Ramanaviciene
Summary: This study presents the development of a membraneless single-enzyme biofuel cell powered by glucose, which showed good operational stability and retained high performance.
BIOSENSORS & BIOELECTRONICS
(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
Biophysics
Jie Huang, Yuxuan Zhang, Fei Ding, Dong Chen, Yiwen Wang, Xin Jin, Xinyuan Zhu
Summary: The study demonstrates that novel enzyme nanocapsules with electroactive polymeric shell can significantly enhance the stability and electrochemical performance of enzymatic bioelectrocatalysis-based biodevices.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Analytical
Kantapat Chansaenpak, Anyanee Kamkaew, Sireerat Lisnund, Pannaporn Prachai, Patipat Ratwirunkit, Thitichaya Jingpho, Vincent Blay, Piyanut Pinyou
Summary: This research presents a self-powered glucose sensor based on a biofuel cell, which efficiently detects glucose with high sensitivity using immobilized redox enzymes. The combination of carbon nanostructures and multi-enzyme cascade allows the sensor to operate under air-saturating conditions.
Article
Chemistry, Applied
Heeyeon An, Hyewon Jeon, Jungyeon Ji, Yongchai Kwon, Yongjin Chung
Summary: In this study, an amine-coordinated cobalt phthalocyanine-based anodic catalyst was fabricated by a facile process to enhance the performance of HPFCs and EBCs. The addition of PEI shifted the onset potential of the oxidation reaction, improved the current density, and created a favorable microenvironment for enzyme activity, resulting in significantly improved operational durability and long-term stability of the biocatalyst. The suggested catalyst showed enhanced performance in HPFCs and EBCs, with improved maximum power densities and open-circuit voltages.
JOURNAL OF ENERGY CHEMISTRY
(2021)
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)
Article
Engineering, Environmental
Jie Huang, Yuxuan Zhang, Xiaohui Deng, Jixiang Li, Shuo Huang, Xin Jin, Xinyuan Zhu
Summary: By constructing a conductive enzyme nanocapsule with a protective shell and conductive pathways, the enzyme's conductivity and stability were improved, leading to enhanced electron transfer and enzymatic stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Nurdiana Nordin, Lorenzo Bordonali, Hossein Davoodi, Novindi Dwi Ratnawati, Gudrun Gygli, Jan G. Korvink, Vlad Badilita, Neil MacKinnon
Summary: The study integrates a compact, reconfigurable reaction cell with high-resolution NMR spectroscopy to monitor enzyme activities at the microscale. The simultaneous monitoring of multiple enzyme activities was demonstrated, with chemical conversion modulation achieved by varying the order of hydrogel assembly.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Nurdiana Nordin, Lorenzo Bordonali, Hossein Davoodi, Novindi Dwi Ratnawati, Gudrun Gygli, Jan G. Korvink, Vlad Badilita, Neil MacKinnon
Summary: The study integrated a compact, reconfigurable reaction cell with high-resolution NMR spectroscopy to monitor the activity of enzymes at different layers, demonstrating real-time monitoring of multiple enzyme activities.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Biophysics
Valerii Myndrul, Emerson Coy, Nataliya Babayevska, Veronika Zahorodna, Vitalii Balitskyi, Ivan Baginskiy, Oleksiy Gogotsi, Mikhael Bechelany, Maria Teresa Giardi, Igor Iatsunskyi
Summary: In this study, a skin-attachable and stretchable electrochemical enzymatic sensor based on ZnO tetrapods and MXene was developed for continuous glucose detection in sweat. The sensor showed enhanced sensitivity, low limit of detection, and a broad linear detection range, making it suitable for glucose detection in human sweat. The sensor also demonstrated good mechanical stability.
BIOSENSORS & BIOELECTRONICS
(2022)
Article
Chemistry, Analytical
Maria A. Komkova, Andrei A. Eliseev, Artem A. Eliseev, Valeria S. Kasimovskaya, Andrei A. Poyarkov, Arkady A. Karyakin
Summary: We propose pulse power generation (PPG) amperometry as an advanced readout for Prussian blue (PB)-based (bio)sensors. The suggested pulse regime, which involves periodic opening and shorting of the circuit, provides a 15-fold increased signal-to-background ratio compared to the conventional continuous short-circuiting mode. The improved sensitivity and stability of the pulse readout allow reliable monitoring of blood glucose variations through sweat analysis.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Joonyoung Lee, Ki-Yoon Kim, Yongchai Kwon, Dahl-Young Khang
Summary: This study proposes stretchable enzymatic biofuel cells (EBFCs) with high performance for power supply. The buckled gold electrodes increase the electrode surface area and catalyst loading, resulting in improved reaction rates. The evaluated EBFCs achieve a maximum power density of 7.1±0.64μW cm-2.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Biochemical Research Methods
Jane W. Agger, Birgitte Zeuner
Summary: This review focuses on enzymatic functionalization and coupling methods for the synthesis of bio-based surfactants from renewable resources. It highlights specific examples of enzymatic reactions, such as transferase, lipase, and glycoside hydrolase-catalyzed esterification or glycoside formation, to link mono- and oligosaccharides with fatty acids. The review also mentions enzymatic carbohydrate functionalization before click chemistry coupling, with relevant enzymes such as LPMOs, oxidases, and dehydrogenases. The importance of C6 or C1-oxidizing activities for converting nonionic surfactants into anionic counterparts is emphasized.
CURRENT OPINION IN BIOTECHNOLOGY
(2022)