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Zhao X, Kolbinger FR, Distler M, Weitz J, Makarov D, Bachmann M, Baraban L. Portable droplet-based real-time monitoring of pancreatic α-amylase in postoperative patients. Biosens Bioelectron 2024; 251:116034. [PMID: 38359666 DOI: 10.1016/j.bios.2024.116034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/21/2023] [Accepted: 01/11/2024] [Indexed: 02/17/2024]
Abstract
Postoperative complications after pancreatic surgery are frequent and can be life-threatening. Current clinical diagnostic strategies involve time-consuming quantification of α-amylase activity in abdominal drain fluid, which is performed on the first and third postoperative day. The lack of real-time monitoring may delay adjustment of medical treatment upon complications and worsen prognosis for patients. We report a bedside portable droplet-based millifluidic device enabling real-time sensing of drain α-amylase activity for postoperative monitoring of patients undergoing pancreatic surgery. Here, a tiny amount of drain liquid of patient samples is continuously collected and co-encapsulated with a starch reagent in nanoliter-sized droplets to track the fluorescence intensity released upon reaction with α-amylase. Comparing the α-amylase levels of 32 patients, 97 % of the results of the droplet-based millifluidic system matched the clinical data. Our method reduces the α-amylase assay duration to approximately 3 min with the limit of detection 7 nmol/s·L, enabling amylase activity monitoring at the bedside in clinical real-time. The presented droplet-based platform can be extended for analysis of different body fluids, diseases, and towards a broader range of biomarkers, including lipase, bilirubin, lactate, inflammation, or liquid biopsy markers, paving the way towards new standards in postoperative patient monitoring.
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Affiliation(s)
- Xinne Zhao
- Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf e. V, 01328, Dresden, Germany.
| | - Fiona R Kolbinger
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav. Carus, TUD Dresden University of Technology, Germany; Else Kröner Fresenius Center for Digital Health (EKFZ), TUD Dresden University of Technology, Germany.
| | - Marius Distler
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav. Carus, TUD Dresden University of Technology, Germany
| | - Jürgen Weitz
- Department of Visceral, Thoracic and Vascular Surgery, University Hospital and Faculty of Medicine Carl Gustav. Carus, TUD Dresden University of Technology, Germany; Else Kröner Fresenius Center for Digital Health (EKFZ), TUD Dresden University of Technology, Germany
| | - Denys Makarov
- Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf e. V, 01328, Dresden, Germany.
| | - Michael Bachmann
- Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf e. V, 01328, Dresden, Germany.
| | - Larysa Baraban
- Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden-Rossendorf e. V, 01328, Dresden, Germany; Else Kröner Fresenius Center for Digital Health (EKFZ), TUD Dresden University of Technology, Germany.
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2
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Sun M, Ma B, Yuan S, Xin L, Zhao C, Liu H. Mercury thermometer-inspired test strip for concentration cell-based potentiometric detection of salivary α-amylase. Anal Chim Acta 2022; 1206:339770. [DOI: 10.1016/j.aca.2022.339770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 11/01/2022]
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3
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Zhao M, Luo L, Guo Y, Zhao B, Chen X, Shi X, Khan M, Lin JM, Hu Q. Viscosity-Based Flow Sensor on Paper for Quantitative and Label-Free Detection of α-Amylase and Its Inhibitor. ACS Sens 2022; 7:593-600. [PMID: 35050602 DOI: 10.1021/acssensors.1c02489] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
α-Amylase (AMS) in human serum is a critical biomarker for the early diagnosis of pancreatic damage. In addition, the inhibition of α-amylase has long been thought to decrease the occurrence of diabetes. Thus, it is critical to construct a facile and convenient method for the determination of AMS and its inhibitor. In this study, we demonstrate a novel amylase sensor based on translating the viscosity change of the aqueous solution into the difference of the water diffusion length on a pH paper strip. AMS can be quantitatively detected by measuring the viscosity change of the amylopectin solution in the presence of AMS with different concentrations. The paper-based AMS sensor has a very high sensitivity with a detection limit of 0.017 U/mL and also shows excellent specificity. In addition, the inhibitory effect of acarbose on AMS is demonstrated with the IC50 value determined to be 21.66 ± 1.13 μg/mL. Furthermore, it is also evaluated for the detection of AMS in human serum samples of healthy people and acute pancreatitis patients. The difference in amylase levels between the two groups is unambiguously distinguished. Overall, this study provides a very simple, cost-effective, equipment-free, high-throughput, and label-free method for rapid and quantitative detection of α-amylase and may have significant applications in the diagnosis of acute pancreatitis and the screening of AMS inhibitors.
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Affiliation(s)
- Mei Zhao
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Limei Luo
- Maternal and Child Health Development Research Center, Shandong Provincial Maternal and Child Health Care Hospital, Jinan 250014, China
| | - Yongxian Guo
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Binglu Zhao
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Xiangfeng Chen
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Xingang Shi
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Mashooq Khan
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Jin-Ming Lin
- Beijing Key Laboratory of Microanalytical Methods and Instrumentation, MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Qiongzheng Hu
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
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A Disposable Saliva Electrochemical MIP-Based Biosensor for Detection of the Stress Biomarker α-Amylase in Point-of-Care Applications. ELECTROCHEM 2021. [DOI: 10.3390/electrochem2030028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The design and synthesis of artificial receptors based on molecular imprinting (MI) technology for the development of a new MIP-based biosensor for detection of the stress biomarker α-amylase in human saliva in point-of-care (PoC) applications is described in this work. The portable electrochemical devices for monitoring α-amylase consists of cost-effective and disposable gold screen-printed electrodes (AuSPEs). To build the electrochemical device, the template biomolecule was firstly immobilized directly over the working area of the gold chip previously activated with a self-assembled monolayer (SAM) of cysteamine (CA). Then, pyrrole (Py) monomer was selected as building block of a polymeric network prepared by CV electropolymerization. After the electropolymerization process, the enzyme was removed from the polymer film in order to build the specific recognition sites for the target enzyme. The MIP biosensor showed a very wide linear concentration range (between 3.0 × 10−4 to 0.60 mg mL−1 in buffer solution and between 3.0 × 10−4 to 3.0 × 10−2 mg mL−1 in human saliva) and low detection levels were achieved (LOD < 3.0 × 10−4 mg mL−1) using square wave voltammetry (SWV) as the electroanalytical technique.
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Teodoro KBR, Sanfelice RC, Migliorini FL, Pavinatto A, Facure MHM, Correa DS. A Review on the Role and Performance of Cellulose Nanomaterials in Sensors. ACS Sens 2021; 6:2473-2496. [PMID: 34182751 DOI: 10.1021/acssensors.1c00473] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Sensors and biosensors play a key role as an analytical tool for the rapid, reliable, and early diagnosis of human diseases. Such devices can also be employed for monitoring environmental pollutants in air and water in an expedited way. More recently, nanomaterials have been proposed as an alternative in sensor fabrication to achieve gains in performance in terms of sensitivity, selectivity, and portability. In this direction, the use of cellulose nanomaterials (CNM), such as cellulose nanofibrils (CNF), cellulose nanocrystals (CNC), and bacterial cellulose (BC), has experienced rapid growth in the fabrication of varied types of sensors. The advantageous properties are related to the supramolecular structures that form the distinct CNM, their biocompatibility, and highly reactive functional groups that enable surface functionalization. The CNM can be applied as hydrogels and xerogels, thin films, nanopapers and other structures interesting for sensor design. Besides, CNM can be combined with other materials (e.g., nanoparticles, enzymes, carbon nanomaterials, etc.) and varied substrates to advanced sensors and biosensors fabrication. This review explores recent advances on CNM and composites applied in the fabrication of optical, electrical, electrochemical, and piezoelectric sensors for detecting analytes ranging from environmental pollutants to human physiological parameters. Emphasis is given to how cellulose nanomaterials can contribute to enhance the performance of varied sensors as well as expand novel sensing applications, which could not be easily achieved using standard materials. Finally, challenges and future trends on the use of cellulose-based materials in sensors and biosensors are also discussed.
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Affiliation(s)
- Kelcilene B. R. Teodoro
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, 13560-970, São Carlos, São Paulo, Brazil
| | - Rafaela C. Sanfelice
- Science and Technology Institute, Federal University of Alfenas, Rodovia José Aurélio Vilela, 11999, BR 267, Km 533, CEP 37715-400, Poços de Caldas, Minas Gerais, Brazil
| | - Fernanda L. Migliorini
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, 13560-970, São Carlos, São Paulo, Brazil
| | - Adriana Pavinatto
- Scientific and Technological Institute of Brazil University, 235 Carolina Fonseca Street, São Paulo 08230-030, São Paulo, Brazil
| | - Murilo H. M. Facure
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, 13560-970, São Carlos, São Paulo, Brazil
- PPGQ, Department of Chemistry, Center for Exact Sciences and Technology, Federal University of São Carlos (UFSCar), 13565-905, São Carlos, São Paulo, Brazil
| | - Daniel S. Correa
- Nanotechnology National Laboratory for Agriculture, Embrapa Instrumentação, 13560-970, São Carlos, São Paulo, Brazil
- PPGQ, Department of Chemistry, Center for Exact Sciences and Technology, Federal University of São Carlos (UFSCar), 13565-905, São Carlos, São Paulo, Brazil
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Development of smart core-shell nanoparticle-based sensors for the point-of-care detection of alpha amylase in diagnostics and forensics. Biosens Bioelectron 2021; 184:113244. [PMID: 33934052 DOI: 10.1016/j.bios.2021.113244] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/08/2021] [Accepted: 04/09/2021] [Indexed: 01/08/2023]
Abstract
Smart biocompatible materials, responsive to various external stimuli, hold immense potential in the development of biosensors for low-cost diagnostics. The present paper outlines the development of smart enzyme-responsive core-shell nanoparticle-based sensors as low-cost diagnostics for alpha amylase detection. The biocompatible core-shell nanoparticles of 200-250 nm size consisted of a chitosan-tripolyphosphate core formed by ionic gelation coated with a starch-iodine shell. In the presence of specific concentrations of amylase, the starch-iodine shell was disrupted and resulted in the exposure of core. This application herein describes a visible switch in color from blue to red towards the point-of-care detection of salivary alpha amylase (sAA). Stress and other autonomic disturbances can be diagnosed by measuring this biomarker. Also, alpha amylase can be used in the detection of latent saliva at crime scenes for forensic investigations. Using the present platform technology, a paper-based diagnostic was developed for detection of salivary alpha amylase that demonstrated a limit of detection (LoD) of 140 units/ml (70 mg/ml) at 5 minutes while a coated swab developed from the nanoparticles for crime scene investigations could achieve an LoD of 2.5 units/ml (1.25 mg/ml) over 30 minutes. The nanoparticles demonstrated stability and reproducibility with no interference seen with other substances in saliva. The present paper provides a proof-of-concept technology underscoring the utility of smart nanoparticles in affordable, versatile biosensing platforms like paper-based and swab-based formats for such diverse applications as diagnostics for stress and in forensics.
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7
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Maity S, Bhuyan T, Bhattacharya R, Bandyopadhyay D. Self-Organized Implanting of Micro/Nanofiltration Membranes in Advanced Flow μ-Reactors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:19430-19442. [PMID: 33851814 DOI: 10.1021/acsami.1c01078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A low-cost, simple, and one-step synthesis of cellulose acetate nanoparticles (CANPs) has been invented using a continuous-flow advanced microfluidic reactor. For this purpose, the CANPs are self-organized inside a cross-junction microchannel by flowing cellulose acetate (CA) dissolved in N,N-dimethylformamide (DMF) through the axial inlet and the antisolvent water through the pair of side inlets. The preferential solubility (insolubility) of DMF (CA) to antisolvent water stimulates the in situ synthesis of CANPs at the DMF/water miscible interface following a phase-inversion process. Subsequently, nanofiltration, ultrafiltration, and microfiltration membranes of different porosities and permeabilities have been prepared from freshly synthesized CANPs. The porosity, thickness, transparency, and wettability of the membranes are tuned by varying the thickness of the membranes, size of the nanoparticles, and the porosity of the membranes. The as-synthesized CANPs show enhanced bactericidal properties with and without loading an external drug, curcumin, which has been validated against the Gram-negative Pseudomonas aeruginosa species. Importantly, enabling a pulsatile flow during the synthesis, the CANPs are embedded as nanofiltration membranes inside the microfluidic channel. Such microfluidic devices have been used to separate a corrosive dye from water. Concisely, the proposed in situ synthesis of CANPs in the continuous-flow microfluidic reactors, their usage for fabricating membranes with tunable wettability and transparency, and their subsequent integration into the microfluidic channel show the potential of the invention for a host of applications related to health care and environmental remediation.
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Affiliation(s)
- Surjendu Maity
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Tamanna Bhuyan
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Rishav Bhattacharya
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India
| | - Dipankar Bandyopadhyay
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Assam 781039, India
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India
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8
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Hong PTK, Jang CH. Simple, sensitive technique for α-amylase detection facilitated by liquid crystal-based microcapillary sensors. Microchem J 2021. [DOI: 10.1016/j.microc.2020.105864] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Zhang Y, Zhu Y, Zeng Z, Zeng G, Xiao R, Wang Y, Hu Y, Tang L, Feng C. Sensors for the environmental pollutant detection: Are we already there? Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213681] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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10
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Wang L, Zhang M, Yang B, Ding X, Tan J, Song S, Nie J. Flexible, Robust, and Durable Aramid Fiber/CNT Composite Paper as a Multifunctional Sensor for Wearable Applications. ACS APPLIED MATERIALS & INTERFACES 2021; 13:5486-5497. [PMID: 33491443 DOI: 10.1021/acsami.0c18161] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Flexible paper-based sensors may be applied in numerous fields, but this requires addressing their limitations related to poor thermal and water resistance, which results in low service life. Herein, we report a paper-based composite sensor composed of carboxylic carbon nanotubes (CCNTs) and poly-m-phenyleneisophthalamide (PMIA), fabricated by a facile papermaking process. The CCNT/PMIA composite sensor exhibits an ability to detect pressures generated by various human movements, attributed to the sensor's conductive network and the characteristic "mud-brick" microstructure. The sensor exhibits the capability to monitor human motions, such as bending of finger joints and elbow joints, speaking, blinking, and smiling, as well as temperature variations in the range of 30-90 °C. Such a capability to sensitively detect pressure can be realized at different applied frequencies, gradient sagittas, and multiple twists with a short response time (104 ms) even after being soaked in water, acid, and alkali solutions. Moreover, the sensor demonstrates excellent mechanical properties and hence can be folded up to 6000 times without failure, can bear 5 kg of load without breaking, and can be cycled 2000 times without energy loss, providing a great possibility for a long sensing life. Additionally, the composite sensor shows exceptional Joule heating performance, which can reach 242 °C in less than 15 s even when powered by a low input voltage (25 V). From the perspective of industrialization, low-cost and large-scale roll-to-roll production of the paper-based sensor can be achieved, with a formed length of thousands of meters, showing great potential for future industrial applications as a wearable smart sensor for detecting pressure and temperature, with the capability of electric heating.
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Affiliation(s)
- Lin Wang
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science & Technology, No. 6, Xuefu Road, Xi'an 710021, China
| | - Meiyun Zhang
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science & Technology, No. 6, Xuefu Road, Xi'an 710021, China
| | - Bin Yang
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science & Technology, No. 6, Xuefu Road, Xi'an 710021, China
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China
| | - Xueyao Ding
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science & Technology, No. 6, Xuefu Road, Xi'an 710021, China
| | - Jiaojun Tan
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science & Technology, No. 6, Xuefu Road, Xi'an 710021, China
| | - Shunxi Song
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science & Technology, No. 6, Xuefu Road, Xi'an 710021, China
| | - Jingyi Nie
- College of Bioresources Chemical and Materials Engineering, National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper Development, Shaanxi University of Science & Technology, No. 6, Xuefu Road, Xi'an 710021, China
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Zafer JB, Dede S, Karakuş E. α-Amylase assay with starch-iodine-sodium fluorescein-based fluorometric method in human serum samples. Prep Biochem Biotechnol 2021; 51:599-606. [PMID: 33427021 DOI: 10.1080/10826068.2020.1843177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A new fluorometric method was developed for the determination of α-amylase activity in human serum samples. Firstly, a saturated starch-iodine complex (SI) was prepared. The SI complex was combined with sodium fluorescein to form a starch-iodine-sodium fluorescein complex (SIF). As the SIF complex decomposes with the α-amylase enzymatic hydrolysis of starch, the intensity of its fluorescence emission increases. The α-amylase activity is determined using the increased fluorescence emission intensity following hydrolysis of the SIF complex by α-amylase. The optimum pH, optimum buffer concentration, optimum temperature, and interference effect were identified for the developed fluorometric measurement method. Under the optimum conditions, a linear calibration curve was obtained between 0.18 and 9.00 U/L for α-amylase. The α-amylase activity in the human serum sample was also determined by our prepared measurement system and compared with the result from a medical center. Both methods are in good agreement with each other. Because this newly developed fluorometric method for α-amylase activity in serum samples is inexpensive, easy to use, and carried out to detect a very low amount of human serum α-amylase with sensitivity, it can be proposed this method for alpha-amylase activity assay in all other biological samples.
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Affiliation(s)
- Julide Buse Zafer
- Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
| | - Süreyya Dede
- Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
| | - Emine Karakuş
- Department of Chemistry, Yildiz Technical University, Istanbul, Turkey
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Bhattacharjee M, Middya S, Escobedo P, Chaudhuri J, Bandyopadhyay D, Dahiya R. Microdroplet based disposable sensor patch for detection of α-amylase in human blood serum. Biosens Bioelectron 2020; 165:112333. [DOI: 10.1016/j.bios.2020.112333] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 05/20/2020] [Accepted: 05/26/2020] [Indexed: 12/18/2022]
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Kamel S, A. Khattab T. Recent Advances in Cellulose-Based Biosensors for Medical Diagnosis. BIOSENSORS 2020; 10:E67. [PMID: 32560377 PMCID: PMC7345568 DOI: 10.3390/bios10060067] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 06/10/2020] [Accepted: 06/15/2020] [Indexed: 12/11/2022]
Abstract
Cellulose has attracted much interest, particularly in medical applications such as advanced biosensing devices. Cellulose could provide biosensors with enhanced biocompatibility, biodegradability and non-toxicity, which could be useful for biosensors. Thus, they play a significant role in environmental monitoring, medical diagnostic tools, forensic science, and foodstuff processing safety applications. This review summarizes the recent developments in cellulose-based biosensors targeting the molecular design principles toward medical detection purposes. The recognition/detection mechanisms of cellulose-based biosensors demonstrate two major classes of measurable signal generation, including optical and electrochemical cellulosic biosensors. As a result of their simplicity, high sensitivity, and low cost, cellulose-based optical biosensors are particularly of great interest for including label-free and label-driven (fluorescent and colorimetric) biosensors. There have been numerous types of cellulose substrates employed in biosensors, including several cellulose derivatives, nano-cellulose, bacterial cellulose, paper, gauzes, and hydrogels. These kinds of cellulose-based biosensors were discussed according to their preparation procedures and detection principle. Cellulose and its derivatives with their distinctive chemical structure have demonstrated to be versatile materials, affording a high-quality platform for accomplishing the immobilization process of biologically active molecules into biosensors. Cellulose-based biosensors exhibit a variety of desirable characteristics, such as sensitivity, accuracy, convenience, quick response, and low-cost. For instance, cellulose paper-based biosensors are characterized as being low-cost and easy to operate, while nano-cellulose biosensors are characterized as having a good dispersion, high absorbance capacity, and large surface area. Cellulose and its derivatives have been promising materials in biosensors which could be employed to monitor various bio-molecules, such as urea, glucose, cell, amino acid, protein, lactate, hydroquinone, gene, and cholesterol. The future interest will focus on the design and construction of multifunctional, miniaturized, low-cost, environmentally friendly, and integrated biosensors. Thus, the production of cellulose-based biosensors is very important.
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Affiliation(s)
- Samir Kamel
- Cellulose and Paper Department, National Research Centre, Cairo 12622, Egypt;
| | - Tawfik A. Khattab
- Dyeing, Printing and Auxiliaries Department, National Research Centre, Cairo 12622, Egypt
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Visvanathan R, Qader M, Jayathilake C, Jayawardana BC, Liyanage R, Sivakanesan R. Critical review on conventional spectroscopic α-amylase activity detection methods: merits, demerits, and future prospects. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:2836-2847. [PMID: 32031680 DOI: 10.1002/jsfa.10315] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 01/31/2020] [Accepted: 02/07/2020] [Indexed: 06/10/2023]
Abstract
α-Amylase is an endoenzyme that catalyses the hydrolysis of internal α-l,4 glycosidic linkages in polysaccharides to produce maltose, maltotriose, and α-limit dextrins. It is widely used in the laboratorial and industrial workflow for several applications. There are several methods utilizing different techniques and substrates to assess α-amylase activity, among which the spectroscopic methods have found widespread applicability due to their ease of use and cost-effectiveness. Depending upon the reaction principle, these assays are classified into four groups: reducing sugar, enzymatic, chromogenic, and amyloclastic methods. Despite the presence of numerous methods, there is no general reliable method to assess α-amylase activity. Each method is shown to have its own merits and demerits. Many improvements have been made to make the available methods more accurate, reliable, and easy. This communication briefly discusses the basic reaction mechanisms and critically reviews the advantages and shortcomings associated with each method. Further recommendations are made for future development. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Rizliya Visvanathan
- National Institute of Fundamental Studies, Kandy, Sri Lanka
- Department of Nutrition, Dietetics & Food, Monash University, Notting Hill, VIC, Australia
| | - Mallique Qader
- National Institute of Fundamental Studies, Kandy, Sri Lanka
- Department of Chemistry, The Open University of Sri Lanka, Nawala, Colombo, Sri Lanka
| | | | | | | | - Ramiah Sivakanesan
- Department of Biochemistry, Faculty of Medicine, University of Peradeniya, Kandy, Sri Lanka
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Ratajczak K, Stobiecka M. High-performance modified cellulose paper-based biosensors for medical diagnostics and early cancer screening: A concise review. Carbohydr Polym 2020; 229:115463. [DOI: 10.1016/j.carbpol.2019.115463] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/30/2019] [Accepted: 10/10/2019] [Indexed: 12/21/2022]
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16
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Liu MM, Lian X, Liu H, Guo ZZ, Huang HH, Lei Y, Peng HP, Chen W, Lin XH, Liu AL, Xia XH. A colorimetric assay for sensitive detection of hydrogen peroxide and glucose in microfluidic paper-based analytical devices integrated with starch-iodide-gelatin system. Talanta 2019; 200:511-517. [DOI: 10.1016/j.talanta.2019.03.089] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 03/20/2019] [Accepted: 03/24/2019] [Indexed: 02/03/2023]
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Yang T, Mativetsky JM. Paper-Based Mechanical Sensors Enabled by Folding and Stacking. ACS APPLIED MATERIALS & INTERFACES 2019; 11:26339-26345. [PMID: 31199613 DOI: 10.1021/acsami.9b06071] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Electronics based on paper substrates can be foldable, inexpensive, and biodegradable, making such systems promising for low-cost sensors, smart packaging, and medical diagnostics. In this work, we saturate tissue paper with poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) by using a simple and scalable process and construct pressure sensors that exhibit an enhanced response when the active material is folded or stacked. Nanoscale pressure actuation and current mapping reveals a sensing mechanism that takes advantage of the fibrous microstructure of the paper and relies on the formation and expansion of electrical contacts between fibers in adjacent paper layers as pressure is applied. The resulting paper-based pressure sensors respond to an impulse within 20 ms and are robust, showing only a 4.6% decrease in the operating current after 30 000 load/unload cycles. Pressure distribution mapping was achieved by using a sensor array with a stacked architecture, whereas folding was used to demonstrate multistate switching and to detect conformational change in a three-dimensional origami system. These strategies of folding and layering paper saturated with functional materials open up new avenues for building multifunctional paper electronics.
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Li Q, Liu H, Zhang S, Zhang D, Liu X, He Y, Mi L, Zhang J, Liu C, Shen C, Guo Z. Superhydrophobic Electrically Conductive Paper for Ultrasensitive Strain Sensor with Excellent Anticorrosion and Self-Cleaning Property. ACS APPLIED MATERIALS & INTERFACES 2019; 11:21904-21914. [PMID: 31124646 DOI: 10.1021/acsami.9b03421] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Recently, a paper-based (PB) strain sensor has turned out to be an ideal substitute for the polymer-based one because of the merits of renewability, biodegradability, and low cost. However, the hygroexpansion and degradation of the paper after absorbing water are the great challenges for the practical applications of the PB strain sensor. Herein, the superhydrophobic electrically conductive paper was fabricated by simply dip-coating the printing paper into the carbon black (CB)/carbon nanotube (CNT)/methyl cellulose suspension and hydrophobic fumed silica (Hf-SiO2) suspension successively to settle the problem. Because of the existence of ultrasensitive microcrack structures in the electrically conductive CB/CNT layer, the sensor was capable of detecting an ultralow strain as low as 0.1%. During the tension strain range of 0-0.7%, the sensor exhibited a gauge factor of 7.5, almost 3 times higher than that of the conventional metallic-based sensors. In addition, the sensor displayed frequency-independent and excellent durability and reproductivity over 1000 tension cycles. Meanwhile, the superhydrophobic Hf-SiO2 layer with a micro-nano structure and low surface energy endowed the sensor with outstanding waterproof and self-cleaning properties, as well as great sustainability toward cyclic strain and harsh corrosive environment. Finally, the PB strain sensor could effectively monitor human bodily motions such as finger/elbow joint/throat movement and pulse in real time, especially for the wet or rainy conditions. All these pave way for the fabrication of a high-performance PB strain sensor.
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Affiliation(s)
- Qianming Li
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou , Henan 450002 , China
| | - Hu Liu
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou , Henan 450002 , China
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering , University of Tennessee , Knoxville , Tennessee 37996 , United States
| | - Shuaidi Zhang
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou , Henan 450002 , China
| | - Dianbo Zhang
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou , Henan 450002 , China
| | - Xianhu Liu
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou , Henan 450002 , China
| | - Yuxin He
- College of Chemical Engineering and Pharmaceutics , Henan University of Science and Technology , Luoyang , Henan 471023 , China
| | - Liwei Mi
- Center for Advanced Materials Research , Zhongyuan University of Technology , Zhengzhou , Henan 450007 , China
| | - Jiaoxia Zhang
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering , University of Tennessee , Knoxville , Tennessee 37996 , United States
| | - Chuntai Liu
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou , Henan 450002 , China
- Technology Development Center for Polymer Processing Engineering, Guangdong Colleges and Universities , Guangdong Industry Technical College , Guangzhou , Guangdong 510641 , China
| | - Changyu Shen
- Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education; National Engineering Research Center for Advanced Polymer Processing Technology , Zhengzhou University , Zhengzhou , Henan 450002 , China
| | - Zhanhu Guo
- Integrated Composites Laboratory (ICL), Department of Chemical & Biomolecular Engineering , University of Tennessee , Knoxville , Tennessee 37996 , United States
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19
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Tsyrulneva I, Alagappan P, Liedberg B. Colorimetric Detection of Salivary α-Amylase Using Maltose as a Noncompetitive Inhibitor for Polysaccharide Cleavage. ACS Sens 2019; 4:865-873. [PMID: 30895774 DOI: 10.1021/acssensors.8b01343] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This paper describes an approach for colorimetric detection of salivary α-amylase, one of the potential biomarkers of autonomic nervous system (ANS) activity, for enabling assessment of fatigue. The ability of α-amylase to cleave α-bonds of polysaccharides is utilized for developing a colorimetric assay. In the proposed approach, 2-chloro-4-nitrophenyl-α-d-maltotrioside as substrate releases a colored byproduct upon cleavage by salivary α-amylase. Introduction of maltose as a noncompetitive inhibitor yields desirable linear responses in the physiologically relevant concentration range (20-500 μg/mL) with a limit of detection (LOD) of 8 μg/mL (in aqueous solution). The concentrations of substrate and noncompetitive inhibitor are subsequently optimized for colorimetric detection of salivary α-amylase. A facile paper-based "strip" assay is proposed for analysis of human saliva samples with marginal interference from saliva components. The proposed assay is rapid, specific, and easy-to-implement for colorimetric detection of salivary α-amylase between 20 and 500 μg/mL. Complementary RGB (red, green, blue components) analysis offers quantitative detection with a LOD of 11 μg/mL. The two assay formats are benchmarked against the Phadebas test, a state of the art method for spectrophotometric detection of α-amylase. The reported paper-based methodology possesses a high potential for estimation of altered ANS responses toward stressors that possibly could find applications in assessment of fatigue and for monitoring onset of fatigue.
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Affiliation(s)
- Iuna Tsyrulneva
- Institute for Sports Research, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 637460
- Center for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
| | - Palaniappan Alagappan
- Center for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
| | - Bo Liedberg
- Center for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
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20
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Middya S, Bhattacharjee M, Bandyopadhyay D. Reusable nano-BG-FET for point-of-care estimation of ammonia and urea in human urine. NANOTECHNOLOGY 2019; 30:145502. [PMID: 30641495 DOI: 10.1088/1361-6528/aafe44] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A back-gate-field-effect-transistor (BG-FET) has been developed to selectively detect ammonia and urea. The BG-FET was prepared on a p-type Si substrate with an n-type channel of CdS-TiO2 nanocomposite and poly-methyl methacrylate film as dielectric layer. The reusability of the sensor was ensured by putting it as a cover to a chamber where samples were detected. The BG-FET showed an increase in drain current with the increase in ammonia release from chamber because higher numbers of charge carriers were created when ammonia adsorped on CdS-TiO2 nanostructures. Control experiments suggested that the variation in current-to-voltage response of BG-FET could also be calibrated to measure the activity of a host of other hazardous gases. The lowest concentration of ammonia detected was ∼0.85 ppm with a response time of 30 s at a gate voltage of 0.5 V or less, which were superior than available field effect transistors ammonia sensors. Addition of urease in urine liberated ammonia equivalent to urea content in urine, which could be detected by the proposed BGFET. The urea-urease enzyme catalysis reaction made the sensor specific in detecting the biomarker. The accuracy, sensitivity, and reusability of the device was found to be suitable to develop a point-of-care testing device for ammonia and urea detection.
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Affiliation(s)
- Sagnik Middya
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Assam, 781039, India. Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Assam, 781039, India
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21
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Hsiao HY, Chen RLC, Chou CC, Cheng TJ. Hand-held Colorimetry Sensor Platform for Determining Salivary α-Amylase Activity and Its Applications for Stress Assessment. SENSORS 2019; 19:s19071571. [PMID: 30939788 PMCID: PMC6479482 DOI: 10.3390/s19071571] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/22/2019] [Accepted: 03/28/2019] [Indexed: 11/29/2022]
Abstract
This study develops a hand-held stress assessment meter with a chemically colorimetric strip for determining salivary α-amylase activity, using a 3,5 dinitrosalicylic acid (DNS) assay to quantify the reducing sugar released from soluble starch via α-amylase hydrolysis. The colorimetric reaction is produced by heating the strip with a mini polyester heater plate at boiling temperature to form a brick red colored product, which measured at 525 nm wavelength. This investigation describes in detail the design, construction, and performance evaluation of a hand-held α-amylase activity colorimeter with a light emitted diode (LED) and photo-detector with built-in filters. The dimensions and mass of the proposed prototype are only 120 × 60 × 60 mm3 and 200 g, respectively. This prototype has an excellent correlation coefficient (>0.995), comparable with a commercial ultraviolet–visible spectroscope, and has a measurable α-amylase activity range of 0.1–1.0 U mL−1. The hand-held device can measure the salivary α-amylase activity with only 5 μL of saliva within 12 min of testing. This sensor platform effectively demonstrates that the level of salivary α-amylase activity increases more significantly than serum cortisol, the other physiological stressor biomarker, under physiologically stressful exercise conditions. Thus, this work demonstrates that the hand-held α-amylase activity meter is an easy to use and cost-effective stress assessment tool for psychoneuroendocrinology research.
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Affiliation(s)
- Hsien-Yi Hsiao
- Department of Bio-industrial Mechatronics Engineering, College of Bio-Resources and Agriculture, National Taiwan University, Taipei 100617, Taiwan.
| | - Richie L C Chen
- Department of Bio-industrial Mechatronics Engineering, College of Bio-Resources and Agriculture, National Taiwan University, Taipei 100617, Taiwan.
| | - Chih-Chi Chou
- Department of Bio-industrial Mechatronics Engineering, College of Bio-Resources and Agriculture, National Taiwan University, Taipei 100617, Taiwan.
| | - Tzong-Jih Cheng
- Department of Bio-industrial Mechatronics Engineering, College of Bio-Resources and Agriculture, National Taiwan University, Taipei 100617, Taiwan.
- Department of Biomedical Engineering, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei 10002, Taiwan.
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22
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Bhattacharjee M, Timung S, Mandal TK, Bandyopadhyay D. Microfluidic Schottky-junction photovoltaics with superior efficiency stimulated by plasmonic nanoparticles and streaming potential. NANOSCALE ADVANCES 2019; 1:1155-1164. [PMID: 36133198 PMCID: PMC9473209 DOI: 10.1039/c8na00362a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Accepted: 12/16/2018] [Indexed: 05/23/2023]
Abstract
A droplet energy harvester (DEH) composed of aqueous salt solution could generate electrical energy from light when placed on a metal-semiconductor Schottky-junction emulating the principles of electrochemical photovoltaics (ECPV). The maximum potential difference generated was ∼95 mV under sun, which was enhanced by ∼1.5 times after the addition of gold nanoparticles (AuNPs) in the droplet because of the generation of additional charge carriers from the localized surface plasmon resonance (LSPR). Focusing the solar illumination through a bi-convex lens on five such droplets increased the voltage to ∼320 mV with a power density of ∼0.25 mW cm-2. When the DEH was converted to a microfluidic energy harvester (MEH) by flowing the AuNP laden salt solution through a microchannel integrated with an array of Schottky-junction electrodes, at an optimal flow rate, another two-fold increase in the power density was observed. In the MEH, because the ECPV aided by the LSPR converted the solar energy into electrical energy, the streaming potential (SP) generated across the electrodes because of the fluid flow converted the mechanical energy into electrical energy. Increase in the number of electrode pairs improved the voltage generation, which suggested that the MEH had potential for microscale-very-large-scale-integration (μ-VLSI). The combined effects of ECPV, LSPR, and SP in the MEH could show an efficiency ∼2.5%, which was one of the highest ones reported, for Schottky-junction energy harvesters. This study shows some simple and efficient pathways to harvest high-density electrical power using microchannels and droplets from the naturally abundant solar or hydroelectric (hydel) energy resources.
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Affiliation(s)
| | - Seim Timung
- Department of Chemical Engineering, Indian Institute of Technology Guwahati Guwahati India
| | - Tapas Kumar Mandal
- Centre for Nanotechnology, Indian Institute of Technology Guwahati Guwahati India
- Department of Chemical Engineering, Indian Institute of Technology Guwahati Guwahati India
| | - Dipankar Bandyopadhyay
- Centre for Nanotechnology, Indian Institute of Technology Guwahati Guwahati India
- Department of Chemical Engineering, Indian Institute of Technology Guwahati Guwahati India
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23
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Ravi B, Bhattacharjee M, Ghosh A, Bandyopadhyay D. Fabrication of pixelated liquid crystal nanostructures employing the contact line instabilities of droplets. NANOSCALE 2019; 11:1680-1691. [PMID: 30620017 DOI: 10.1039/c8nr08400a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A liquid crystal (LC) droplet resting on a poly-dimethylsiloxane substrate could rapidly spread upon solvent vapour annealing to form a non-uniform film. While the solvophobic surfaces restricted the spreading of the droplet to form a thicker film upon solvent annealing, the solvophilic substrates allowed the formation of a thinner film under similar conditions. Withdrawal of the solvent exposure caused rapid evaporation of the solvent molecules from the film, especially near the retracting contact-line to form microscale LC-droplets, which shrunk into nanoscopic ones after evaporation of the excess solvent. The thinner films on solvophilic surfaces allowed the formation of droplets with smaller size and periodicity as small as ∼100 nm and ∼200 nm, respectively. Furthermore, the use of a patterned substrate could impose a large-area ordering on the nanodroplets. A theoretical model for an evaporating film of LC-solution revealed that the spacing of nanodroplets could be decided by the interplay of stabilizing and destabilizing components of capillary force while van der Waals interaction played a supportive role when the film was ultrathin near the contact line. The micro/nanodroplets thus formed showed an anomalous oscillatory rotational motion originating from the difference in the Laplace pressure near contact lines under the influence of an external electric field. The application of the Lorenz force to these droplets showed translation and rotational motions followed by ejection of satellite droplets.
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Affiliation(s)
- Bolleddu Ravi
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, India.
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24
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Ma H, Kang Q, Wang T, Yu L. A liquid crystals-based sensing platform for detection of α-amylase coupled with destruction of host-guest interaction. Colloids Surf B Biointerfaces 2019; 173:616-622. [DOI: 10.1016/j.colsurfb.2018.10.036] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 09/17/2018] [Accepted: 10/15/2018] [Indexed: 12/24/2022]
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25
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Mandal N, Bhattacharjee M, Chattopadhyay A, Bandyopadhyay D. Point-of-care-testing of α-amylase activity in human blood serum. Biosens Bioelectron 2019; 124-125:75-81. [DOI: 10.1016/j.bios.2018.09.097] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 09/26/2018] [Accepted: 09/29/2018] [Indexed: 12/14/2022]
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26
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Garcia PT, Dias AA, Souza JAC, Coltro WKT. Batch injection analysis towards auxiliary diagnosis of periodontal diseases based on indirect amperometric detection of salivary α-amylase on a cupric oxide electrode. Anal Chim Acta 2018; 1041:50-57. [PMID: 30340690 DOI: 10.1016/j.aca.2018.08.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 06/19/2018] [Accepted: 08/21/2018] [Indexed: 02/05/2023]
Abstract
This study describes, for the first time, the use of a batch injection analysis system with amperometric detection (BIA-AD) to indirectly determine salivary α-amylase (sAA) levels in saliva samples for chronic periodontitis diagnosis. A chemical/thermal treatment was explored to generate a CuO film on a Cu electrode surface. This procedure offered good stability (RSD = 0.3%), good repeatability (RSD < 1.3%) and excellent reproducibility (RSD < 1.5%). The sAA concentration levels were determined based on the detection of maltose produced by enzymatic hydrolysis of starch. The analytical performance was investigated, and a linear correlation was observed for a maltose concentration range between 0.5 and 6.0 mmol L-1 with a correlation coefficient equal to 0.999. The analytical sensitivity and the limit of detection were 48.8 μA/(mmol L-1) and 0.05 mmol L-1, respectively. In addition, the proposed system provided an excellent analytical frequency (120 analysis h-1). The clinical feasibility of the proposed method was investigated by the determination of sAA levels in four saliva samples (two from healthy control persons (C1 and C2) and two from patients with chronic periodontitis (P1 and P2)). The accuracy provided by the BIA-AD system ranged from 93 to 98%. The sAA concentration levels achieved for each sample were compared to the values found by spectrophotometry and there was no statistically significant difference between them at a confidence level of 95%. Finally, the method reported herein emerges as a simple, low cost and promising tool for assisting periodontal diseases diagnosis.
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Affiliation(s)
- Paulo T Garcia
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil
| | - Anderson A Dias
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil
| | - João A C Souza
- Faculdade de Odontologia, Universidade Federal de Goiás, 74605-220, Goiânia, GO, Brazil
| | - Wendell K T Coltro
- Instituto de Química, Universidade Federal de Goiás, 74690-900, Goiânia, GO, Brazil; Instituto Nacional de Ciência e Tecnologia de Bioanalítica, 13084-971, Campinas, SP, Brazil.
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27
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Wu M, Lai Q, Ju Q, Li L, Yu HD, Huang W. Paper-based fluorogenic devices for in vitro diagnostics. Biosens Bioelectron 2018; 102:256-266. [DOI: 10.1016/j.bios.2017.11.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 10/10/2017] [Accepted: 11/01/2017] [Indexed: 12/30/2022]
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28
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Chatterjee S, Sinha Mahapatra P, Ibrahim A, Ganguly R, Yu L, Dodge R, Megaridis CM. Precise Liquid Transport on and through Thin Porous Materials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:2865-2875. [PMID: 29377702 DOI: 10.1021/acs.langmuir.7b04093] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Porous substrates have the ability to transport liquids not only laterally on their open surfaces but also transversally through their thickness. Directionality of the fluid transport can be achieved through spatial wettability patterning of these substrates. Different designs of wettability patterns are implemented herein to attain different schemes (modes) of three-dimensional transport in a high-density paper towel, which acts as a thin porous matrix directing the fluid. All schemes facilitate precise transport of metered liquid microvolumes (dispensed as droplets) on the surface and through the substrate. One selected mode features lateral fluid transport along the bottom surface of the substrate, with the top surface remaining dry, except at the initial droplet dispension point. This configuration is investigated in further detail, and an analytical model is developed to predict the temporal variation of the penetrating drop shape. The analysis and respective measurements agree within the experimental error limits, thus confirming the model's ability to account for the main transport mechanisms.
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Affiliation(s)
- Souvick Chatterjee
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
| | - Pallab Sinha Mahapatra
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
- Department of Mechanical Engineering, Indian Institute of Technology Madras , Chennai 600036, India
| | - Ali Ibrahim
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
| | - Ranjan Ganguly
- Department of Power Engineering, Jadavpur University , Kolkata 700098, India
| | - Lisha Yu
- Corporate Research and Engineering, Kimberly-Clark Corporation , Neenah, Wisconsin 54956, United States
| | - Richard Dodge
- Corporate Research and Engineering, Kimberly-Clark Corporation , Neenah, Wisconsin 54956, United States
| | - Constantine M Megaridis
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607, United States
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Samson AAS, Lee J, Song JM. Paper-based inkjet bioprinting to detect fluorescence resonance energy transfer for the assessment of anti-inflammatory activity. Sci Rep 2018; 8:591. [PMID: 29330381 PMCID: PMC5766618 DOI: 10.1038/s41598-017-18995-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 12/19/2017] [Indexed: 12/14/2022] Open
Abstract
For the first time, a paper-based fluorescence resonance energy transfer (FRET) determination with cyclic AMP (cAMP)-specific phosphodiesterase 4B (PDE4B) inhibitory assay using an inkjet-printing technique is proposed. Non-fabricated parchment paper is found to constitute a unique substrate to measure fluorescent energy transfer, due to its insignificant self-absorption, and enables efficient sample interaction. Here, we report the responsive FRET signals generated on paper, upon sequentially printing reaction components on parchment paper using a conventional inkjet printer equipped with four cartridges. After printing, the energy emitted by Eu chelate was transferred by FRET to ULight molecule on paper, detected at 665 nm. In the absence of free cAMP, a maximum FRET signal was achieved on paper, while a decrease in FRET signals was recorded when free cAMP produced by PDE4B inhibitors compete with Eu-cAMP, binding with ULight-mAb. The IM50 value was determined as 2.46 × 10−13 mole for roliparm and 1.86 × 10−13 mole for roflumilast, to effectively inhibit PDE4B activity. Inkjet printing-based FRET signal determination utilizes components that are less than the femtomole range, which was four-orders less than the standard assay method. The methodology reported here constitutes an innovative approach towards the determination of FRET signals generated on paper.
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Affiliation(s)
| | - Jungmi Lee
- College of Pharmacy, Seoul National University, Seoul, 08826, South Korea
| | - Joon Myong Song
- College of Pharmacy, Seoul National University, Seoul, 08826, South Korea.
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30
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Laser carved micro-crack channels in paper-based dilution devices. Talanta 2017; 175:289-296. [DOI: 10.1016/j.talanta.2017.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/23/2017] [Accepted: 07/01/2017] [Indexed: 12/12/2022]
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31
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Flexible immunosensor for the detection of salivary α-amylase in body fluids. Talanta 2017; 174:52-58. [DOI: 10.1016/j.talanta.2017.05.075] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/18/2017] [Accepted: 05/26/2017] [Indexed: 02/03/2023]
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32
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Wang C, Chen D, Wang Q, Tan R. Kanamycin detection based on the catalytic ability enhancement of gold nanoparticles. Biosens Bioelectron 2017; 91:262-267. [DOI: 10.1016/j.bios.2016.12.042] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/06/2016] [Accepted: 12/16/2016] [Indexed: 11/24/2022]
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33
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Bhattacharjee M, Nemade HB, Bandyopadhyay D. Nano-enabled paper humidity sensor for mobile based point-of-care lung function monitoring. Biosens Bioelectron 2017; 94:544-551. [PMID: 28351016 DOI: 10.1016/j.bios.2017.03.049] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 01/17/2023]
Abstract
The frequency of breathing and peak flow rate of exhaled air are necessary parameters to detect chronic obstructive pulmonary diseases (COPDs) such as asthma, bronchitis, or pneumonia. We developed a lung function monitoring point-of-care-testing device (LFM-POCT) consisting of mouthpiece, paper-based humidity sensor, micro-heater, and real-time monitoring unit. Fabrication of a mouthpiece of optimal length ensured that the exhaled air was focused on the humidity-sensor. The resistive relative humidity sensor was developed using a filter paper coated with nanoparticles, which could easily follow the frequency and peak flow rate of the human breathing. Adsorption followed by condensation of the water molecules of the humid air on the paper-sensor during the forced exhalation reduced the electrical resistance of the sensor, which was converted to an electrical signal for sensing. A micro-heater composed of a copper-coil embedded in a polymer matrix helped in maintaining an optimal temperature on the sensor surface. Thus, water condensed on the sensor surface only during forcible breathing and the sensor recovered rapidly after the exhalation was complete by rapid desorption of water molecules from the sensor surface. Two types of real-time monitoring units were integrated into the device based on light emitting diodes (LEDs) and smart phones. The LED based unit displayed the diseased, critical, and fit conditions of the lungs by flashing LEDs of different colors. In comparison, for the mobile based monitoring unit, an application was developed employing an open source software, which established a wireless connectivity with the LFM-POCT device to perform the tests.
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Affiliation(s)
- Mitradip Bhattacharjee
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Harshal B Nemade
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Assam 781039, India; Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India.
| | - Dipankar Bandyopadhyay
- Centre for Nanotechnology, Indian Institute of Technology Guwahati, Assam 781039, India; Department of Chemical Engineering, Indian Institute of Technology Guwahati, Assam 781039, India.
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Colorimetric biosensor for the assay of paraoxon in environmental water samples based on the iodine-starch color reaction. Anal Chim Acta 2017; 967:59-63. [PMID: 28390486 DOI: 10.1016/j.aca.2017.02.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Revised: 02/24/2017] [Accepted: 02/25/2017] [Indexed: 01/08/2023]
Abstract
In this work, a new colorimetric biosensor for the assay of paraoxon was developed via the conventional iodine-starch color reaction and multi-enzyme cascade catalytic reactions. In the presence of acetylcholine chloride, acetylcholinesterase (AChE) and choline oxidase (ChO) catalyzed the formation of H2O2, which then activated horseradish peroxidase (HRP) to catalyze the oxidation of KI to produce an iodine-starch color reaction. Upon exposure to paraoxon, the catalytic activity of AChE was inhibited and less H2O2 generated, resulting in a decrease in the production of I2 and a drop in the intensity of solution color. This colorimetric biosensor showed high sensitivity for the assay of paraoxon with a limit of detection 4.7 ppb and was applied for the assay of paraoxon in spiked real samples. By employing the conventional iodine-starch color reaction, this biosensor has the potential of on-site assay of OPs residues in environmental samples.
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An electrochemical sensor for detection of neurotransmitter-acetylcholine using metal nanoparticles, 2D material and conducting polymer modified electrode. Biosens Bioelectron 2017; 89:377-383. [DOI: 10.1016/j.bios.2016.06.047] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 06/13/2016] [Accepted: 06/14/2016] [Indexed: 11/20/2022]
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Nayak S, Blumenfeld NR, Laksanasopin T, Sia SK. Point-of-Care Diagnostics: Recent Developments in a Connected Age. Anal Chem 2017; 89:102-123. [PMID: 27958710 PMCID: PMC5793870 DOI: 10.1021/acs.analchem.6b04630] [Citation(s) in RCA: 281] [Impact Index Per Article: 40.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Samiksha Nayak
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, New York, NY 10027, USA
| | - Nicole R. Blumenfeld
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, New York, NY 10027, USA
| | - Tassaneewan Laksanasopin
- Biological Engineering Program, Faculty of Engineering, King Mongkut’s University of Technology Thonburi, 126 Pracha Uthit Rd., Bang Mod, Thung Khru, Bangkok 10140, Thailand
| | - Samuel K. Sia
- Department of Biomedical Engineering, Columbia University, 351 Engineering Terrace, 1210 Amsterdam Avenue, New York, NY 10027, USA
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Choi JR, Yong KW, Tang R, Gong Y, Wen T, Yang H, Li A, Chia YC, Pingguan-Murphy B, Xu F. Lateral Flow Assay Based on Paper-Hydrogel Hybrid Material for Sensitive Point-of-Care Detection of Dengue Virus. Adv Healthc Mater 2017; 6. [PMID: 27860384 DOI: 10.1002/adhm.201600920] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/09/2016] [Indexed: 11/09/2022]
Abstract
Paper-based devices have been broadly used for the point-of-care detection of dengue viral nucleic acids due to their simplicity, cost-effectiveness, and readily observable colorimetric readout. However, their moderate sensitivity and functionality have limited their applications. Despite the above-mentioned advantages, paper substrates are lacking in their ability to control fluid flow, in contrast to the flow control enabled by polymer substrates (e.g., agarose) with readily tunable pore size and porosity. Herein, taking the benefits from both materials, the authors propose a strategy to create a hybrid substrate by incorporating agarose into the test strip to achieve flow control for optimal biomolecule interactions. As compared to the unmodified test strip, this strategy allows sensitive detection of targets with an approximately tenfold signal improvement. Additionally, the authors showcase the potential of functionality improvement by creating multiple test zones for semi-quantification of targets, suggesting that the number of visible test zones is directly proportional to the target concentration. The authors further demonstrate the potential of their proposed strategy for clinical assessment by applying it to their prototype sample-to-result test strip to sensitively and semi-quantitatively detect dengue viral RNA from the clinical blood samples. This proposed strategy holds significant promise for detecting various targets for diverse future applications.
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Affiliation(s)
- Jane Ru Choi
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology; Xi'an Jiaotong University; Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC); Xi'an Jiaotong University; Xi'an 710049 P. R. China
- Department of Biomedical Engineering; Faculty of Engineering; University of Malaya; Lembah Pantai; 50603 Kuala Lumpur Malaysia
| | - Kar Wey Yong
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology; Xi'an Jiaotong University; Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC); Xi'an Jiaotong University; Xi'an 710049 P. R. China
- Department of Biomedical Engineering; Faculty of Engineering; University of Malaya; Lembah Pantai; 50603 Kuala Lumpur Malaysia
| | - Ruihua Tang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology; Xi'an Jiaotong University; Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC); Xi'an Jiaotong University; Xi'an 710049 P. R. China
- School of Life Sciences; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Yan Gong
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology; Xi'an Jiaotong University; Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC); Xi'an Jiaotong University; Xi'an 710049 P. R. China
- Xi'an Diandi Biotech Company; Xi'an 710049 P. R. China
| | - Ting Wen
- Xi'an Diandi Biotech Company; Xi'an 710049 P. R. China
| | - Hui Yang
- School of Life Sciences; Northwestern Polytechnical University; Xi'an 710072 P. R. China
| | - Ang Li
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research; College of Stomatology; Xi'an Jiaotong University; Xi'an 710049 P. R. China
| | - Yook Chin Chia
- Department of Primary Care Medicine; University of Malaya Primary Care Research Group; Faculty of Medicine; University of Malaya; Lembah Pantai; 50603 Kuala Lumpur Malaysia
| | - Belinda Pingguan-Murphy
- Department of Biomedical Engineering; Faculty of Engineering; University of Malaya; Lembah Pantai; 50603 Kuala Lumpur Malaysia
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology; Xi'an Jiaotong University; Xi'an 710049 P. R. China
- Bioinspired Engineering and Biomechanics Center (BEBC); Xi'an Jiaotong University; Xi'an 710049 P. R. China
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Ali MA, Singh C, Mondal K, Srivastava S, Sharma A, Malhotra BD. Mesoporous Few-Layer Graphene Platform for Affinity Biosensing Application. ACS APPLIED MATERIALS & INTERFACES 2016; 8:7646-7656. [PMID: 26950488 DOI: 10.1021/acsami.5b12460] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A label-free, highly reproducible, sensitive, and selective biosensor is proposed using antiapolipoprotein B 100 (AAB) functionalized mesoporous few-layer reduced graphene oxide and nickel oxide (rGO-NiO) nanocomposite for detection of low density lipoprotein (LDL) molecules. The formation of mesoporous rGO-NiO composite on indium tin oxide conductive electrode has been accomplished via electrophoretic technique using colloidal suspension of rGO sheets and NiO nanoparticles. This biosensor shows good stability obtained by surface conjugation of antibody AAB molecules with rGO-NiO matrix by EDC-NHS coupling chemistry. The defect-less few layer rGO sheets, NiO nanoparticles (nNiO) and formation of nanocomposite has been confirmed by Raman mapping, electron microscopic studies, X-ray diffraction, and electrochemical techniques. The synthesized rGO-NiO composite is mesoporous dominated with a small percentage of micro and macroporous structure as is evident by the results of Brunauer-Emmett-Teller experiment. Further, the bioconjugation of AAB with rGO-NiO has been investigated by Fourier transform-infrared spectroscopy studies. The kinetic studies for binding of antigen-antibody (LDL-AAB) and analytical performance of this biosensor have been evaluated by the impedance spectroscopic method. This biosensor exhibits an excellent sensitivity of 510 Ω (mg/dL)(-1) cm(-2) for detection of LDL molecules and is sensitive to 5 mg/dL concentration of LDL in a wide range of 0-130 mg/dL. Thus, this fabricated biosensor is an efficient and highly sensitive platform for the analysis of other antigen-antibody interactions and biomolecules detection.
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Affiliation(s)
- Md Azahar Ali
- Department of Chemical Engineering, Indian Institute of Technology Kanpur , Kanpur 208016, India
| | - Chandan Singh
- Department of Science and Technology Centre on Biomolecular Electronics, Biomedical Instrumentation Section, CSIR-National Physical Laboratory , Dr. K. S. Krishnan Marg, New Delhi 110012, India
| | - Kunal Mondal
- Department of Chemical Engineering, Indian Institute of Technology Kanpur , Kanpur 208016, India
| | - Saurabh Srivastava
- Department of Biotechnology, Delhi Technological University , Shahbad Daulatpur, Main Bawana Road, Delhi 110042, India
| | - Ashutosh Sharma
- Department of Chemical Engineering, Indian Institute of Technology Kanpur , Kanpur 208016, India
| | - Bansi D Malhotra
- Department of Biotechnology, Delhi Technological University , Shahbad Daulatpur, Main Bawana Road, Delhi 110042, India
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