Article
Biophysics
Nicole L. Walker, Jeffrey E. Dick
Summary: The development of a new electrochemical technique - open circuit potential, has been aimed at stable and reliable monitoring of biological metabolites. By immobilizing oxidase enzyme in chitosan hydrogel, the method achieves specificity in monitoring metabolites. This approach can effectively detect metabolites such as glucose and can be extended to detect other analytes.
BIOSENSORS & BIOELECTRONICS
(2021)
Article
Chemistry, Analytical
Ke Quan, Yuqing Zeng, Wenke Zhang, Fengfeng Li, Mengjiao Li, Zhihe Qing, Linlin Wu
Summary: In this study, a visual and reusable biosensor was developed for detecting substrates that are closely associated with human physiological health. The immobilized oxidase showed higher stability and sensitivity under harsh conditions, enabling reliable detection of substrates in complex fluids.
ANALYTICA CHIMICA ACTA
(2024)
Article
Materials Science, Multidisciplinary
Guan-Kai Huang, Shivam Gupta, Chi -Young Lee, Nyan-Hwa Tai
Summary: In this study, a noninvasive saliva glucose sensor was developed using polypyrrole (PPy) and acid-treated carbon nanotubes (acid-CNTs) deposited on a fluorine-doped tin oxide (FTO) conductive glass substrate. The sensor exhibited high sensitivity, selectivity, and stability, making it suitable for noninvasive diagnosis of diabetes.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Gabriela Valdes-Ramirez, Laura Galicia
Summary: The biosensing membrane based on ferulic acid and glucose oxidase synthesized via cyclic voltammetry shows a linear response to glucose concentration, with high sensitivity and stability. The developed glucose biosensors exhibit a broader linear response compared to other polymer-based glucose biosensors.
Article
Chemistry, Analytical
Yue Wang, Jifan Zhao, Tian Yang, Yan Zhang, Dongping Tao, Yasushi Hasebe, Zhiqiang Zhang
Summary: Sulfide minerals were employed as a matrix for glucose oxidase immobilization in biosensors, showing good linear range, detection limits, and detection performance for glucose sensing. The results suggest that sulfide minerals are promising platforms for enzyme immobilization in biosensor applications.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Yu Cai, Tingting Tu, Tianyu Li, Shanshan Zhang, Bin Zhang, Lu Fang, Xuesong Ye, Bo Liang
Summary: The study on the application of nanomaterials in glucose biosensors demonstrates excellent electrochemical performance, taking a step towards the development of the third-generation glucose biosensor.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Minying Wu, Qian Zhang, Yuanyuan Fang, Chao Deng, Fangzhou Zhou, Yi Zhang, Xingdong Wang, Yi Tang, Yajun Wang
Summary: Two-dimensional nanoreactors with cascade catalytic activity for glucose oxidation and hydrogen peroxide decomposition were prepared by immobilizing GOx on Ti3C2 MXene nanosheets. The GOx-conjugated Ti3C2-PLL nanosheets exhibited excellent enzymatic activities and were further deposited on glassy carbon electrode to construct a high-performance biosensor with a low glucose detection limit.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Laura Sakalauskiene, Benediktas Brasiunas, Anton Popov, Asta Kausaite-Minkstimiene, Almira Ramanaviciene
Summary: The development of a first-generation reagentless amperometric glucose biosensor based on the combination of AuNS, PB, and GOx has been achieved, enabling convenient and intuitive glucose detection. The biosensor exhibits a wide linear range, good repeatability, and high selectivity.
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, Analytical
Laura Sakalauskiene, Anton Popov, Asta Kausaite-Minkstimiene, Arunas Ramanavicius, Almira Ramanaviciene
Summary: In this study, electrochemical glucose biosensors based on graphite rod electrode modified with dendritic gold nanostructures and glucose oxidase were developed. Three methods for immobilization of glucose oxidase were compared, and it was found that using GA-GOx-SAM/DGNs/GR electrode provided the highest current response with low detection limit and the same linear dynamic range. The developed biosensors showed good stability and sensitivity.
Article
Chemistry, Physical
Shuai Hao, He Zhang, Xiaoxuan Sun, Junfeng Zhai, Shaojun Dong
Summary: A self-powered glucose biosensor (SPGB) with high sensitivity and good selectivity was constructed in this study, utilizing a hybrid enzymatic biofuel cell and no redox mediators. The SPGB showed promise in sensing glucose in real samples, with recoveries in grape juice and human serum exceeding 99.5% and a relative standard deviation (RSD) of less than 8%. This research highlights the potential of SPGB as an effective tool for glucose detection in practical applications.
Article
Chemistry, Physical
Bin Li, Xingmin Wu, Chaosheng Shi, Yongqiang Dai, Jingfei Zhang, Wanyu Liu, Chen Wu, Yangfan Zhang, Xue Huang, Wei Zeng
Summary: The development of flexible glucose biosensors for non-invasive blood glucose monitoring through wearable devices is significant for diabetes prevention and treatment. A flexible GCGP biosensor was fabricated for sweat glucose detection, exhibiting high sensitivity and low detection limit. The biosensor showed high selectivity for glucose and good response in real sweat, attributed to the inclusion of GS.
SURFACES AND INTERFACES
(2023)
Article
Endocrinology & Metabolism
Alessandro Bisio, Stacey Anderson, Lisa Norlander, Grenye O'Malley, Jessica Robic, Selassie Ogyaadu, Liana Hsu, Camilla Levister, Laya Ekhlaspour, David W. Lam, Carol Levy, Bruce Buckingham, Marc D. Breton
Summary: The study evaluated the impact of a CGM-based decision support system (DSS) in patients with type 1 diabetes (T1D) using multiple daily injections (MDI). The results suggest that the DSS is a feasible option for individuals using MDI, although further investigation is needed to determine the glycemic benefits associated with its use.
Article
Biochemistry & Molecular Biology
D. V. Estrada-Osorio, Ricardo A. Escalona-Villalpando, L. G. Arriaga, A. Gutierrez, J. Ledesma-Garcia
Summary: Ferrocene-based polymers have been widely studied as redox mediators in glucose biosensors. This work successfully modified poly-L-lysine (PLL) with ferrocene carboxylate and tested its performance as a redox mediator with glucose oxidase. The results showed remarkable activity and high selectivity. Scanning electrochemical microscopy was used to analyze the charged regions of the modified polymer on the electrode surface.
BIOELECTROCHEMISTRY
(2022)
Article
Medicine, General & Internal
Isabel Leiva-Gea, Maria F. Martos-Lirio, Ana Gomez-Perea, Ana-Belen Ariza-Jimenez, Leopoldo Tapia-Ceballos, Jose Manuel Jimenez-Hinojosa, Juan Pedro Lopez-Siguero
Summary: This study found a correlation between daily scan rates and HbA1c and hypoglycemia. HbA1c levels were higher at lower scan rates, but decreased as scan rates increased. However, further increase in scan rates led to higher HbA1c levels. Subjects with higher daily scan rates reduced levels of hypoglycemia.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Energy & Fuels
H. Hadiyanto, Marcelinus Christwardana, Carlito da Costa
Summary: This paper investigates the use of a hybrid Microalgae-Microbial fuel cell to treat wastewater from home-made tapioca industry. The system utilizes native microbes in the wastewater to generate electricity while also producing biomass using microalgae. The results show promising potential for reducing treatment costs, generating renewable bioelectricity, and producing useful microalgae biomass.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Chemistry, Physical
Marcelinus Christwardana, Aniek Sri Handayani, Rike Yudianti, Joelianingsih
Summary: The study demonstrated the use of carrageenan and cellulose to modify the anode, successfully enhancing the power density and performance of Microbial Fuel Cells (MFCs), indicating the potential for future development of this structure.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Biotechnology & Applied Microbiology
Marcelinus Christwardana, Linda Aliffia Yoshi, Indraprasta Setyonadi, Mohammad Rizqi Maulana, Ahmad Fudholi
Summary: Yeast microbial fuel cells (MFCs) were used as biosensors for in-situ monitoring of dissolved oxygen (DO) levels in environmental waters, showing promising prospects for future monitoring in various areas.
ENZYME AND MICROBIAL TECHNOLOGY
(2021)
Article
Environmental Sciences
H. Hadiyanto, Marcelinus Christwardana, Wahyu Zuli Pratiwi, P. Purwanto, S. Sudarno, Kristinah Haryani, Anh Tuan Hoang
Summary: In this study, suspended and immobilized Saccharomyces cerevisiae yeast in alginate were used as a biocatalyst to optimize the operating conditions of microalgae microbial fuel cell (MMFC) with different concentrations of tofu wastewater. The results showed that immobilized yeast performed better in producing stable electrical output and removing COD compared to suspended yeast. Therefore, the model using immobilized yeast at a concentration of 10.89% w/v and wastewater concentration of 56.94% achieved the best power density and COD removal efficiency.
Article
Electrochemistry
Marcelinus Christwardana, J. Joelianingsih, Linda Aliffia Yoshi
Summary: This study developed a unique 2D-3D anode with high surface area and outstanding electrical conductivity. The results showed that this anode improved the enrichment and growth of yeast and promoted electron transfer in a microbial fuel cell system. Extensive characterization demonstrated that the anode had higher power density and lower internal resistance in MFC applications.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
Marcelinus Christwardana, Athanasia Amanda Septevani, Linda Aliffia Yoshi
Summary: Photosynthesis is an efficient and sustainable technique that converts light energy into chemical energy. In photobioelectrochemical research, chlorophyll from Spirulina platensis has been shown to directly communicate with TiO2-modified ITO, generating electricity. The power and photocurrent density can be affected by the chlorophyll content, and the polarizability and Van der Waals interaction between TiO2 and chlorophyll are crucial for electron transport.
INTERNATIONAL JOURNAL OF RENEWABLE ENERGY DEVELOPMENT-IJRED
(2022)
Article
Biochemistry & Molecular Biology
H. Hadiyanto, W. Widayat, Monica Evanty Pratiwi, Marcelinus Christwardana, Koenraad Muylaert
Summary: In this experiment, bio-flocculants from discarded clam shells were used to gather Chlorella pyrenoidosa. The main contributor to the flocculation of Chlorella pyrenoidosa was calcium ions in the bio-flocculants, through charge neutralization and sweeping mechanisms. The use of a Zn2+ salt further boosted the flocculation by neutralizing the negative charge of functional groups. The Response Surface Methodology approach improved water reuse and microalgae harvesting.
ENVIRONMENTAL POLLUTANTS AND BIOAVAILABILITY
(2022)
Article
Chemistry, Physical
Marcelinus Christwardana, Gerald Ensang Timuda, Nono Darsono, Henry Widodo, K. Kurniawan, Deni Shidqi Khaerudini
Summary: Coating bentonite-Polyvinyl Alcohol (PVA/Bentonite) on carbon felt (CF) improves the performance of yeast Microbial Fuel Cell (MFC), increasing power output and voltage. The concentration of PVA and bentonite affects the development of biofilm on the anode surface.
JOURNAL OF POWER SOURCES
(2023)
Article
Green & Sustainable Science & Technology
H. Hadiyanto, Figa Muhammad Octafalahanda, Jihan Nabilaa, Andono Kusuma Jati, Marcelinus Christwardanab, K. Kusmiyati, Adian Khoironie
Summary: This study investigated the feasibility of anaerobic co-digestion of a mixture of cattle manure and bagasse residue in different weight ratio combinations. The results showed that the combination of 1:5 ratio of bagasse waste to cattle manure obtained the best biogas yield. The kinetic analysis using Gompertz and Logistic models predicted the maximum cumulative biogas at a ratio of 1:5 (cattle: bagasse) at 31,157.66 mL and 30,112.12 mL, respectively.
INTERNATIONAL JOURNAL OF RENEWABLE ENERGY DEVELOPMENT-IJRED
(2023)
Article
Polymer Science
Ngadiwiyana Ngadiwiyana, Merinah Merinah, Damar Nurwahyu Bima, Ismiyarto Ismiyarto, Purbowatiningrum Ria Sarjono, Marelinus Christwardana
Summary: The bacteria-resistant plastic polymer industry is growing rapidly due to promising research on food contamination. Thiol-ene copolymers E3TMBA and E3TAE were synthesized via photopolymerization and possess high thermal stability. They demonstrated mass loss and ash formation at specific temperatures, and showed antibacterial activity against Escherichia coli and Staphylococcus aureus, enhancing their potential in food packaging.
POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
(2023)
Article
Electrochemistry
Marcelinus Christwardana, J. Joelianingsih, Linda Aliffia Yoshi
Summary: This study utilizes yeast and glucose oxidase as co-biocatalysts in a single-chamber enzymatic microbial fuel cell to break down sugarcane bagasse waste. Comparing to yeast-only microbial fuel cells, this method increases the open circuit voltage to 0.56 V and the maximum power density by 10.4 times. Furthermore, the technology achieves a 75% reduction in chemical oxygen demand (COD).
JOURNAL OF ELECTROCHEMICAL SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Nur Vita Permatasari, H. Hadiyanto, Adji Kawigraha, Budi Warsito, Marcelinus Christwardana
Summary: The demand for batteries is increasing as there is a shift from conventional vehicles to electric vehicles. Electric vehicles are being used to reduce CO2 emissions and combat global warming. Proper management of battery waste is crucial to prevent environmental problems and protect human health. Battery recycling not only has environmental benefits but also economic value.
INTERNATIONAL JOURNAL OF ENERGY AND ENVIRONMENTAL ENGINEERING
(2023)
Article
Electrochemistry
Marcelinus Christwardana, Deni Shidqi Khaerudini
Summary: Yeast microbial fuel cells (MFCs) are promising devices for energy conversion, utilizing yeast as a biocatalyst to generate electricity. This article presents a scientometric analysis of 148 high-quality publications from 2005 to mid-2022, focusing on the historical research trend related to yeast MFCs. The analysis highlights significant breakthroughs in electrode materials, mediator addition, and in-situ application of yeast MFCs, and reveals the dominance of Asian researchers in this field, particularly from India and South Korea. The findings help researchers navigate the research area and identify key articles, countries, and researchers for potential collaboration.
ANALYTICAL & BIOANALYTICAL ELECTROCHEMISTRY
(2022)
Article
Electrochemistry
Satrio Kuntolaksono, Joelianingsih, Linda Aliffia Yoshi, Marcelinus Christwardana
Summary: This bibliometric study uses VOSviewer to evaluate the global research trends in the fields of electrochemical nitrite sensing. The study identifies water pollution, pollution detection, ligands, layered semiconductors, heavy metals, and carbon black as potential hotspots for future research. China, India, and the United States are the most productive countries in this field.
ANALYTICAL & BIOANALYTICAL ELECTROCHEMISTRY
(2022)
Article
Education, Scientific Disciplines
Marcelinus Christwardana, Sri Handayani, E. Enjarlis, I. Ismojo, R. Ratnawati, J. Joelianingsih, Linda Aliffia Yoshi
Summary: The community service program is an important obligation of Higher Education in Indonesia, contributing to student competence development and faculty-student engagement. It has positive impacts on both students and partners.
EDUCATION FOR CHEMICAL ENGINEERS
(2022)