Article
Engineering, Electrical & Electronic
Emtinan Ouda, Nehad Yousf, Mohamed Morsy, El-Shazly M. Duraia
Summary: The light scribe technique was used to reduce graphene oxide over a flexible substrate, resulting in a humidity sensor. The sensor showed rapid response and high precision, and can be directly fabricated on flexible substrates, making it highly favorable for future wearable smart electronics.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
By Altynay Kaidarova, Wenhao Liu, Liam Swanepoel, Abdullah Almansouri, Nathan R. Geraldi, Carlos M. Duarte, Jurgen Kosel
Summary: Graphene Hall sensors offer a linear response to magnetic fields with high normalized sensitivity and low noise voltage floor, with high bendability, robustness, and the ability to operate at high temperatures. They enable various device ideas, including in soft robotics, by combining laser-scribed graphene sensors with deformable elastomers and flexible magnets.
NPJ FLEXIBLE ELECTRONICS
(2021)
Article
Computer Science, Information Systems
Aashir Waheed Syed, Mohammad Ali Mohammad
Summary: This study demonstrates that fractal design micro-supercapacitors outperform traditional interdigitated micro-supercapacitors in terms of capacitance and energy density, mainly due to the larger active surface area and the edge effect in fractal designs.
Review
Optics
Zhengfen Wan, Xi Chen, Min Gu
Summary: Graphene is increasingly studied for supercapacitor applications, with laser scribed graphene being used for electrode fabrication. The laser direct writing process enhances the electrochemical performance of supercapacitors, producing flexible and highly integrated devices.
OPTO-ELECTRONIC ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
Rajesh Madhuvilakku, Yi-Kuang Yen, Wei-Mon Yan, Guang-Wei Huang
Summary: Analysis of pharmaceutical active ingredients is crucial for quality control and clinical trials. A flexible three-electrode system using laser-scribed graphene (LSG) technology is proposed in this study, which exhibits excellent analytical performance and acceptable selectivity.
Article
Chemistry, Physical
Bohdan Kulyk, Sonia O. Pereira, Antonio J. S. Fernandes, Elvira Fortunato, Florinda M. Costa, Nuno F. Santos
Summary: Laser-induced graphene from paper (paper-LIG) was used for non-enzymatic electrochemical sensing of uric acid in human urine. The paper-LIG electrodes showed high selectivity and sensitivity in detecting uric acid, and have the potential for widespread application in detecting other important biomarkers.
Article
Electrochemistry
Bicheng Zhu, Luo Yu, Sara Beikzadeh, Shuyuan Zhang, Peikai Zhang, Li Wang, Jadranka Travas-Sejdic
Summary: The sensor strip developed is a disposable and portable non-enzymatic glucose sensor strip based on gold-nanoparticles (AuNPs)-modified laser-scribed graphene electrode (LSGE). It provides a linear detection range for glucose concentrations between 10 muM to 10 mM with a limit of detection of 6.3 muM and shows good selectivity towards interfering agents. The LSGE/AuNP strips have the potential to be used as disposable glucose sensor strips for point-of-care glucose measurements.
ELECTROCHIMICA ACTA
(2021)
Article
Multidisciplinary Sciences
Seung Hyeon Ko, Seung Wook Kim, Yi Jae Lee
Summary: The sensor demonstrated selective low level detection of dopamine through the use of graphene oxide/PEDOT:PSS composite, which provided well-tailored interfacial properties for highly sensitive and selective determination of dopamine.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Maham Iqra, Furqan Anwar, Rahim Jan, Mohammad Ali Mohammad
Summary: Flexible strain sensors play a critical role in soft robotics, health care devices, and the defense industry. In this study, a low-cost flexible piezoresistive strain sensor was developed using reduced graphene oxide on polydimethylsiloxane, achieving high sensitivity and a wide sensing range.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Electrical & Electronic
Wenzheng He, Xiongying Ye, Tianhong Cui
Summary: This paper introduces a method to improve the selectivity of electrochemical sensors by introducing a heterogeneous electrode interface and modifying graphene and gold nanoparticles on a flexible substrate. The sensor shows low detection limits and is suitable for detecting dopamine and uric acid at the lowest concentration in the human body.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Houqiang Chen, Zhengfang Mei, Kaili Qi, Yanfeng Wang, Rongsheng Chen
Summary: A flexible enzyme-free glucose sensor based on multilayer porous laser-induced graphene (LIG) has been developed in this study. It exhibits excellent flexibility, desirable analytical performance, and high stability for glucose detection in human blood serum.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Simge Balaban, Tutku Beduk, Ceren Durmus, Eda Aydindogan, Khaled Nabil Salama, Suna Timur
Summary: In this study, a bio-platform for eIF3d sensing was constructed using LSG and surface functionalization with anti eIF3d antibody via EDC/NHS chemistry. XPS and various electrochemical methods were used to validate the sensor, showing sensitivity to eIF3d biomarker amounts between 75-500 ng/mL with a LOD of 50.4 ng/mL. The biosensor's selectivity was demonstrated through testing with interference molecules, and successful detection of EIF3d was achieved in synthetic biological samples, marking a rare use of LSGs in immunosensor studies.
Editorial Material
Optics
Kuen Yao Lau, Jianrong Qiu
Summary: Sensors based on graphene materials show great potential in various areas, including biology, medicine, and the environment. Laser-scribed graphene offers a versatile, cost-effective, and environmentally friendly approach for integrated sensors capable of detecting stress, bio, gas, temperature, humidity, and more.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Chemistry, Physical
Sabrine Baachaoui, Walid Mabrouk, Amal Rabti, Ouassim Ghodbane, Noureddine Raouafi
Summary: A facile method was developed to fabricate laser-induced graphene from amPES membranes, which were applied as flexible electrodes for microsupercapacitors. Doping amPES membranes with carbon black microparticles improved their energy storage performance. The electrolyte had a significant effect on the electrochemical performance, with the highest areal capacitance achieved in 0.5 M HClO4. The CB-doped PES membranes exhibited low carbon fingerprint, cost-effectiveness, high electrochemical performance, and potential applications in wearable electronic systems.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Do Van Lam, Muhammad Sohail, Van-Toan Nguyen, Quang-Tung Ngo, A. Anto Jeffery, Ho-Suk Choi, Namgee Jung, Jae-Hyun Kim, Hyunuk Kim, Seung-Mo Lee
Summary: Metal-organic frameworks can be transformed into ultrasmall nanoparticles embedded in conductive carbon support through laser scribing, allowing precise control over particle size and composition. The produced nanoparticles exhibit excellent electrocatalytic performance for the hydrogen evolution reaction in both acid and alkaline electrolytes.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Zahra Ghassemi, Gymama Slaughter
Review
Chemistry, Multidisciplinary
Meimei Lai, Gymama Slaughter
Article
Engineering, Electrical & Electronic
J. Shankara Narayanan, Gymama Slaughter
IEEE SENSORS JOURNAL
(2020)
Article
Biochemical Research Methods
Ankit Baingane, Gymama Slaughter
IEEE TRANSACTIONS ON NANOBIOSCIENCE
(2020)
Review
Chemistry, Analytical
Saikat Banerjee, Stephanie McCracken, Md Faruk Hossain, Gymama Slaughter
Article
Engineering, Electrical & Electronic
Ankit Baingane, Gymama Slaughter
Summary: The study introduces a abiotic glucose indicator system developed using a biofuel cell, demonstrating high sensitivity and selectivity, potentially serving as a platform in point-of-care medical applications.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Thakshila Liyanage, Meimei Lai, Gymama Slaughter
Summary: We have developed a novel label-free ultrasensitive tapered optical fiber plasmonic biosensor that can successfully detect a panel of microRNAs with good selectivity. The biosensor showed high refractive index sensitivity and achieved a limit of detection between 103 aM and 261 aM for the microRNA panel. It also demonstrated successful detection of clinically relevant concentrations of microRNAs in human serum with a LOD between 1.097 fM and 1.220 fM. This approach could potentially broaden the applications of biosensors for detecting and quantifying large arrays of microRNAs.
ANALYTICA CHIMICA ACTA
(2021)
Review
Engineering, Electrical & Electronic
Thakshila Liyanage, Ahmad Zaman Qamar, Gymama Slaughter
Summary: Advancements in novel materials, particularly nanomaterials, have revolutionized the field of biological and chemical sensors by serving as building blocks in sensor technologies. These materials offer extraordinary electrical and physical properties that can be tuned through experimentation to achieve desired sensor characteristics and sensing performance. Challenges in the current limitations of nanomaterials as sensing materials are also discussed alongside their prospects.
IEEE SENSORS JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Johvan O. Hill-Dick, Alexis Harmon, Wei Cao, Kishor K. Sadasivuni, Mehran Elahi, Adetayo Adedeji, Hani E. Elsayed-Ali, Gymama Slaughter, Kapil Kumar, Mohammad Asadi, Bijandra Kumar
Summary: Nonenzymatic glucose sensors based on nanocoral reduced Ag exhibit significantly higher sensitivity and stability, operating at low potentials and detecting glucose concentrations linearly in a wide range from 100 uM to 2.5 mM.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Saikat Banerjee, Gymama Slaughter
Summary: A glucose abiotic biofuel cell was developed using gold nanoparticles ink printed electrodes on bacterial nanocellulose, with a colloidal platinum anode and silver oxide/multiwalled carbon nanotube nanocomposite cathode. The cell exhibited high open circuit voltage, short circuit current density, and maximum power density at different glucose concentrations, showing good performance in serum with glucose.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Thakshila Liyanage, Bayan Alharbi, Linh Quan, Aurora Esquela-Kerscher, Gymama Slaughter
Summary: A tapered optical fiber plasmonic biosensor was developed for the sensitive detection of a panel of microRNAs in human serum. This biosensor showed high sensitivity and selectivity, enabling cancer diagnosis without the need for RNA extraction or sample amplification. Statistical studies demonstrated its reliable ability to differentiate cancerous and noncancerous samples.
Review
Engineering, Electrical & Electronic
Ajith Mohan Arjun, Megha Shinde, Gymama Slaughter
Summary: Neurotransmitters are crucial small chemical signaling molecules that play a vital role in the proper functioning of the nervous system. Dysregulation of neurotransmitters can lead to various mental disorders, and monitoring their levels is crucial. Electrochemical detection, particularly using MXene composites, holds promise for the early-stage detection of neurological diseases originated from an imbalance in neurotransmitters.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Ankit Baingane, J. Shankara Narayanan, Gymama Slaughter
SENSING AND BIO-SENSING RESEARCH
(2018)
Meeting Abstract
Chemistry, Multidisciplinary
Gymama Slaughter
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Biochemistry & Molecular Biology
Priyanga Kumar, Noel Nesakumar, Jayashree Gopal, Sakthivel Sivasubramanian, Srinivasan Vedantham, John Bosco Balaguru Rayappan
Summary: This study developed an electrochemical biosensor for measuring MG levels in the plasma of type-2 diabetes mellitus patients. The biosensor showed a wide linear concentration range, high sensitivity, and a 90% correlation with ELISA data. It also exhibited a significant correlation with HbA1c and fasting plasma glucose levels.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Cristina Tortolini, Valeria Gigli, Antonio Angeloni, Federico Tasca, Nguyen T. K. Thanh, Riccarda Antiochia
Summary: The development of a novel voltammetric immunosensor for the detection of salivary MMP-8 at the point-of-care is described. The sensor showed good performance and comparable results to the conventional ELISA method when tested in real saliva samples. This biosensor is single-use, cost-effective, and requires a small quantity of test medium and a short preparation time.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Rimsha B. Jamal, Ulrich Bay Gosewinkel, Elena E. Ferapontova
Summary: Pathogen-triggered infections are a severe global threat to human health. Researchers have developed a fast and inexpensive electrocatalytic aptamer assay for the specific and ultrasensitive detection of E. coli, allowing for timely treatment and prevention. The method is fast, sensitive, and can be used in field and point-of-care applications for analysis of bacteria in the human environment.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Miao Liu, Yuwei Wang, Shanshan Tang, Wei Wang, Axin Liang, Aiqin Luo
Summary: An unlabeled ratiometric molecular imprinted electrochemiluminescence sensor was developed for the determination of trace uric acid using MXene@NaAsc, CdSe@ZnS quantum dots, and molecularly imprinted polymer composites modified glass carbon electrode. This sensor, with easy preparation, great selectivity, and excellent sensitivity, successfully detected uric acid in human serum.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Charlotte Da Silva, Camille Lamarche, Carole Pichereaux, Emmanuelle Mouton-Barbosa, Gauthier Demol, Sebastien Boisne, Etienne Dague, Odile Burlet-Schiltz, Flavien Pillet, Marie-Pierre Rols
Summary: Low-energy electron beams (LEEB) are a safe and practical sterilization solution for industrial applications. To address the limitations of LEEB, we developed a low-energy pulsed electron beam generator (LEPEB) that can effectively and efficiently eradicate bacteria in a wide range of industrial applications.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Daniel Dobrovodsky, Ales Danhel, Daniel Renciuk, Jean-Louis Mergny, Miroslav Fojta
Summary: In this study, N-methyl mesoporphyrin IX (NMM) was utilized as a voltammetric probe for the electrochemical detection of G4s. The detection of NMM was achieved by cyclic voltammetry on a hanging mercury drop electrode (HMDE) with a limit of detection (LOD) of 40 nM. The reduction signal of NMM was found to be significantly higher when G4 oligodeoxynucleotides (G4 ODNs) were present compared to single- or double-stranded ODNs or unfolded ODNs capable of forming G4s. Gradual transition from unstructured single strand to G4, induced by increasing concentrations of the G4 stabilizing K+ ions, was detected for the first time using electrochemical methods. Circular dichroism spectroscopy provided support for the obtained results. This work expands on the utilization of electrochemical probes for DNA secondary structure recognition and offers a proof of principle for the development of novel electroanalytical methods for nucleic acid structure studies.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Mengjiao Zhu, Yu Liu, Meiyue Wang, Tao Liu, Zhenyu Chu, Wanqin Jin
Summary: Early rapid diagnosis of COVID-19 is crucial for reducing the risk of severe symptoms and loss of lung function. Researchers have proposed an ultrafast and ultrasensitive DNA sensor that can accurately detect the virus in a short period of time, with outstanding selectivity.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Fatima-Zahra Ait-Itto, James A. Behan, Mathieu Martinez, Frederic Barriere
Summary: This study investigated the feasibility of using ancient marine sediments as inoculum for bioanode development in microbial fuel cells (MFC). The results showed the presence of two exoelectrogenic bacterial genera in these iron-rich sediments and confirmed that the development of the bioanode derived from the native microbiota. This study has important implications for understanding the role of these bacteria in broader paleoenvironmental phenomena.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Issa Fall, Bastien Doumeche, Sofiene Abdellaoui, Caroline Remond, Harivony Rakotoarivonina, Marjorie Ochs
Summary: This article presents a novel electrochemical tool based on lignin-coated paper electrodes for the detection and characterization of ligninolytic activity. The suitability of this method has been demonstrated using a catalaseperoxidase isolated from Thermobacillus xylanilyticus.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Chenyi Zhuo, Dehong Yu, Jiuying Cui, Zichun Song, Qianli Tang, Xianjiu Liao, Zhao Liu, Ning Xin, Lu Lou, Fenglei Gao
Summary: A label-free detection strategy for quantification of Apolipoprotein A4 (Apo-A4) has been developed based on rolling circle amplification (RCA) and proximity hybridization-induced DNAzyme-driven bipedal DNA walker. This method shows high sensitivity and selectivity for a wide range of protein targets.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Niloufar Fattahi, Jeffrey Reed, Evan Heronemus, Priyasha Fernando, Ryan Hansen, Prathap Parameswaran
Summary: In this study, polyethylene glycol hydrogels were developed as protective coatings for electroactive biofilms, improving their viability under low resource conditions and ammonia-N shocks.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Xiaopeng Hou, Qiongyi Cheng, Hui Wang
Summary: A self-cleaning paper-based microfluidic biosensor was developed using hydrophobic paper decorated with polymeric octadecyl trichlorosilane. The biosensor showed improved performance and could effectively measure the concentration of copper ions in livestock feed and manure.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Yanling Zhang, Jie Wang, Min Liu, Yun Ni, Yao Yue, Dawei He, Ruijiang Liu
Summary: An innovative electrochemical biosensor has been developed for sensitive detection of HER2 protein, an important tumor marker for breast cancer diagnosis and treatment evaluation. The biosensor utilizes specific recognition probes and nanomaterials, along with a unique sensing strategy, to achieve ultra-low detection limit and demonstrate excellent selectivity, reproducibility, and stability.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Humayun Amir, Vasanth Subramanian, Sundaram Sornambikai, Nagamony Ponpandian, Chinnusamy Viswanathan
Summary: In this study, the electrochemical detection of breast cancer biomarker HER2 was successfully achieved using the N-CQDs/GS as the detector. The BSA-modified HER2 Antibody/N-CQDs/GS immunoelectrode preserved excellent activity for the biosensor, while the GS electrode provided high stability and conductivity. The method exhibited a low detection limit and optimal specificity, stability, and reproducibility for detecting HER-2 protein in untreated blood samples from breast cancer patients.
BIOELECTROCHEMISTRY
(2024)
Article
Biochemistry & Molecular Biology
Ilona Uzieliene, Anton Popov, Raminta Vaiciuleviciute, Gailute Kirdaite, Eiva Bernotiene, Almira Ramanaviciene
Summary: This review discusses the application of polypyrrole (Ppy), an electroconductive polymer, in cell culture experiments with electrical stimulation (ES) and its potential for tissue regeneration. Ppy can direct ES to cells and stimulate differentiation towards different cell lineages. Different types of Ppy materials and their combination with active molecules are explored.
BIOELECTROCHEMISTRY
(2024)