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Rizalputri LN, Anshori I, Handayani M, Gumilar G, Septiani NLW, Hartati YW, Annas MS, Purwidyantri A, Prabowo BA, Yuliarto B. Facile and controllable synthesis of monodisperse gold nanoparticle bipyramid for electrochemical dopamine sensor. Nanotechnology 2022; 34:055502. [PMID: 36301678 DOI: 10.1088/1361-6528/ac9d3f] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 10/25/2022] [Indexed: 06/16/2023]
Abstract
We demonstrated potential features of gold nanoparticle bipyramid (AuNB) for an electrochemical biosensor. The facile synthesis method and controllable shape and size of the AuNB are achieved through the optimization of cetyltrimethylammonium chloride (CTAC) surfactant over citric acid (CA) ratio determining the control of typically spherical Au seed size and its transition into a penta-twinned crystal structure. We observe that the optimized ratio of CTAC and CA facilitates flocculation control in which Au seeds with size as tiny as ∼14.8 nm could be attained and finally transformed into AuNB structures with an average length of ∼55 nm with high reproducibility. To improve the electrochemical sensing performance of a screen-printed carbon electrode, surface modification with AuNB via distinctive linking procedures effectively enhanced the electroactive surface area by 40%. Carried out for the detection of dopamine, a neurotransmitter frequently linked to the risk of Parkinson's, Alzheimer's, and Huntington's diseases, the AuNB decorated-carbon electrode shows outstanding electrocatalytic activity that improves sensing performance, including high sensitivity, low detection limit, wide dynamic range, high selectivity against different analytes, such as ascorbic acid, uric acid and urea, and excellent reproducibility.
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Affiliation(s)
- Lavita Nuraviana Rizalputri
- Department of Nanotechnology, Graduate School, Bandung Institute of Technology, Bandung, Indonesia
- Research Center for Nanoscience and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung, Indonesia
| | - Isa Anshori
- Research Center for Nanoscience and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung, Indonesia
- Department of Biomedical Engineering, Bandung Institute of Technology, Bandung, Indonesia
| | - Murni Handayani
- Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), Tangerang Selatan, Indonesia
| | - Gilang Gumilar
- Research Center for Nanoscience and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung, Indonesia
- Advanced Functional Materials Laboratory, Engineering Physics Department, Bandung Institute of Technology, Bandung, Indonesia
| | - Ni Luh Wulan Septiani
- Research Center for Advanced Materials, National Research and Innovation Agency (BRIN), Tangerang Selatan, Indonesia
| | - Yeni Wahyuni Hartati
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Sumedang, Indonesia
- Research Center of Molecular Biotechnology and Bioinformatics, Universitas Padjadjaran, Bandung, Indonesia
| | | | - Agnes Purwidyantri
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Belfast, United Kingdom
| | - Briliant Adhi Prabowo
- Research Center for Electronics, National Research and Innovation Agency (BRIN), Bandung, Indonesia
- International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - Brian Yuliarto
- Research Center for Nanoscience and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung, Indonesia
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Prabowo BA, Sousa C, Cardoso S, Freitas P, Fernandes E. Labeling on a Chip of Cellular Fibronectin and Matrix Metallopeptidase-9 in Human Serum. Micromachines (Basel) 2022; 13:1722. [PMID: 36296077 PMCID: PMC9611906 DOI: 10.3390/mi13101722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
We present a microfluidic chip for protein labeling in the human serum-based matrix. Serum is a complex sample matrix that contains a variety of proteins, and a matrix is used in many clinical tests. In this study, the device performance was tested using commercial serum samples from healthy donors spiked with the following target proteins: cellular fibronectin (c-Fn) and matrix metallopeptidase 9 (MMP9). The microfluidic molds were fabricated using micro milling on acrylic and using stereolithography (SLA) three-dimensional (3D) printing for an alternative method and comparison. A simple quality control was performed for both fabrication mold methods to inspect the channel height of the chip that plays a critical role in the labeling process. The fabricated microfluidic chip shows a good reproducibility and repeatability of the performance for the optimized channel height of 150 µm. The spiked proteins of c-Fn and MMP9 in the human serum-based matrix, were successfully labeled by the functionalized magnetic nanoparticles (MNPs). The biomarker labeling occurring in the serum was compared using a simple matrix sample: phosphate buffer. The measured signals obtained by using a magnetoresistive (MR) biochip platform showed that the labeling using the proposed microfluidic chip is in good agreement for both matrixes, i.e., the analytical performance (sensitivity) obtained with the serum, near the relevant cutoff values, is within the uncertainty of the measurements obtained with a simple and more controlled matrix: phosphate buffer. This finding is promising for stroke patient stratification where these biomarkers are found at high concentrations in the serum.
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Affiliation(s)
| | - Carole Sousa
- International Iberian Nanotechnology Laboratory (INL), 4715-330 Braga, Portugal
| | - Susana Cardoso
- INESC-MN– Institute for Systems and Computer Engineering-Microsystems and Nanotechnologies,1000-029 Lisbon, Portugal
| | - Paulo Freitas
- International Iberian Nanotechnology Laboratory (INL), 4715-330 Braga, Portugal
| | - Elisabete Fernandes
- International Iberian Nanotechnology Laboratory (INL), 4715-330 Braga, Portugal
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Prabowo BA, Purwidyantri A. Environmentally Friendly and Biodegradable Components for Biosensors. IEEE Nanotechnology Mag 2022. [DOI: 10.1109/mnano.2022.3195107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Purwidyantri A, Prabowo BA. The Prospects of Colloidal Lithography Towards Low-Cost and Scalable Sensors. IEEE Nanotechnology Mag 2022. [DOI: 10.1109/mnano.2022.3195102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Anshori I, Lukito V, Adhawiyah R, Putri D, Harimurti S, Rajab TLE, Pradana A, Akbar M, Syamsunarno MRAA, Handayani M, Purwidyantri A, Prabowo BA. Versatile and Low-Cost Fabrication of Modular Lock-and-Key Microfluidics for Integrated Connector Mixer Using a Stereolithography 3D Printing. Micromachines 2022; 13:mi13081197. [PMID: 36014119 PMCID: PMC9413493 DOI: 10.3390/mi13081197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/24/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022]
Abstract
We present a low-cost and simple method to fabricate a novel lock-and-key mixer microfluidics using an economic stereolithography (SLA) three-dimensional (3D) printer, which costs less than USD 400 for the investment. The proposed study is promising for a high throughput fabrication module, typically limited by conventional microfluidics fabrications, such as photolithography and polymer-casting methods. We demonstrate the novel modular lock-and-key mixer for the connector and its chamber modules with optimized parameters, such as exposure condition and printing orientation. In addition, the optimization of post-processing was performed to investigate the reliability of the fabricated hollow structures, which are fundamental to creating a fluidic channel or chamber. We found out that by using an inexpensive 3D printer, the fabricated resolution can be pushed down to 850 µm and 550 µm size for squared- and circled-shapes, respectively, by the gradual hollow structure, applying vertical printing orientation. These strategies opened up the possibility of developing straightforward microfluidics platforms that could replace conventional microfluidics mold fabrication methods, such as photolithography and milling, which are costly and time consuming. Considerably cheap commercial resin and its tiny volume employed for a single printing procedure significantly cut down the estimated fabrication cost to less than 50 cents USD/module. The simulation study unravels the prominent properties of the fabricated devices for biological fluid mixers, such as PBS, urine and plasma blood. This study is eminently prospective toward microfluidics application in clinical biosensing, where disposable, low-cost, high-throughput, and reproducible chips are highly required.
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Affiliation(s)
- Isa Anshori
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
- Research Center for Nanosciences and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung 40132, Indonesia;
- Correspondence: (I.A.); (B.A.P.)
| | - Vincent Lukito
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
| | - Rafita Adhawiyah
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
| | - Delpita Putri
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
| | - Suksmandhira Harimurti
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
| | - Tati Latifah Erawati Rajab
- Biomedical Engineering Department, School of Electrical Engineering and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia; (V.L.); (R.A.); (D.P.); (S.H.); (T.L.E.R.)
| | - Arfat Pradana
- Research Center for Nanosciences and Nanotechnology (RCNN), Bandung Institute of Technology, Bandung 40132, Indonesia;
| | - Mohammad Akbar
- Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Padjadjaran and Dr. Hasan Sadikin General Hospital, Bandung 40161, Indonesia;
| | | | - Murni Handayani
- National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (M.H.); (A.P.)
| | - Agnes Purwidyantri
- National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (M.H.); (A.P.)
- International Iberian Nanotechnology Laboratory (INL), 4715-330 Braga, Portugal
| | - Briliant Adhi Prabowo
- National Research and Innovation Agency (BRIN), Tangerang Selatan 15314, Indonesia; (M.H.); (A.P.)
- International Iberian Nanotechnology Laboratory (INL), 4715-330 Braga, Portugal
- Correspondence: (I.A.); (B.A.P.)
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Prabowo BA, Fernandes E, Freitas P. A pump-free microfluidic device for fast magnetic labeling of ischemic stroke biomarkers. Anal Bioanal Chem 2022; 414:2571-2583. [PMID: 35088131 DOI: 10.1007/s00216-022-03915-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 11/01/2022]
Abstract
This research proposes a low-cost and simple operation microfluidic chip to enhance the magnetic labeling efficiency of two ischemic stroke biomarkers: cellular fibronectin (c-Fn) and matrix metallopeptidase 9 (MMP9). This fully portable and pump-free microfluidic chip is operated based on capillary attractions without any external power source and battery. It uses an integrated cellulose sponge to absorb the samples. At the same time, a magnetic field is aligned to hold the target labeled by the magnetic nanoparticles (MNPs) in the pre-concentrated chamber. By using this approach, the specific targets are labeled from the beginning of the sampling process without preliminary sample purification. The proposed study enhanced the labeling efficiency from 1 h to 15 min. The dynamic interactions occur in the serpentine channel, while the crescent formation of MNPs in the pre-concentrated chamber, acting as a magnetic filter, improves the biomarker-MNP interaction. The labeling optimization by the proposed device influences the dynamic range by optimizing the MNP ratio to fit the linear range across the clinical cutoff value. The limits of detection (LODs) of 2.8 ng/mL and 54.6 ng/mL of c-Fn measurement were achieved for undiluted and four times dilutions of MNP, respectively. While for MMP9, the LODs were 11.5 ng/mL for undiluted functionalized MNP and 132 ng/mL for four times dilutions of functionalized MNP. The results highlight the potential use of this device for clinical sample preparation and specific magnetic target labeling. When combined with a detection system, it could also be used as an integrated component of a point-of-care platform.
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Affiliation(s)
- Briliant Adhi Prabowo
- INL - International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, s/n 4715-330, Braga, Portugal
| | - Elisabete Fernandes
- INL - International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, s/n 4715-330, Braga, Portugal.
| | - Paulo Freitas
- INL - International Iberian Nanotechnology Laboratory, Av. Mestre José Veiga, s/n 4715-330, Braga, Portugal.
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Prabowo BA, Purwidyantri A, Liu B, Lai HC, Liu KC. Gold nanoparticle-assisted plasmonic enhancement for DNA detection on a graphene-based portable surface plasmon resonance sensor. Nanotechnology 2021; 32:095503. [PMID: 33232941 DOI: 10.1088/1361-6528/abcd62] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The impact of different gold nanoparticle (GNP) structures on plasmonic enhancement for DNA detection is investigated on a few-layer graphene (FLG) surface plasmon resonance (SPR) sensor. Two distinct structures of gold nano-urchins (GNu) and gold nanorods (GNr) were used to bind the uniquely designed single-stranded probe DNA (ssDNA) of Mycobacterium tuberculosis complex DNA. The two types of GNP-ssDNA mixture were adsorbed onto the FLG-coated SPR sensor through the π-π stacking force between the ssDNA and the graphene layer. In the presence of complementary single-stranded DNA, the hybridization process took place and gradually removed the probes from the graphene surface. From SPR sensor preparation, the annealing process of the Au layer of the SPR sensor effectively enhanced the FLG coverage leading to a higher load of the probe DNA onto the sensing interface. The FLG was shown to be effective in providing a larger surface area for biomolecular capture due to its roughness. Carried out in the DNA hybridization study with the SPR sensor, GNu, with its rough and spiky structures, significantly reinforced the overall DNA hybridization signal compared with GNr with smooth superficies, especially in capturing the probe DNA. The DNA hybridization detection assisted by GNu reached the femtomolar range limit of detection. An optical simulation validated the extreme plasmonic field enhancement at the tip of the GNu spicules. The overall integrated approach of the graphene-based SPR sensor and GNu-assisted DNA detection provided the proof-of-concept for the possibility of tuberculosis disease screening using a low-cost and portable system to be potentially applied in remote or third-world countries.
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Affiliation(s)
- Briliant Adhi Prabowo
- International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
- Department of Electronics Engineering, Chang Gung University, Taoyuan 33302, Taiwan
- Research Center for Electronics and Telecommunications, Indonesian Institute of Sciences, Bandung 40135, Indonesia
| | - Agnes Purwidyantri
- International Iberian Nanotechnology Laboratory, Braga 4715-330, Portugal
- Research Unit for Clean Technology, Indonesian Institute of Sciences, Bandung 40135, Indonesia
| | - Bei Liu
- Department of Electronics Engineering, Chang Gung University, Taoyuan 33302, Taiwan
| | - Hsin-Chih Lai
- Department of Medical Biotechnology and Laboratory Science, Chang Gung University, Taoyuan 33302, Taiwan
- Research Center for Industry of Human Ecology and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan 33302, Taiwan
- Department of Laboratory Medicine, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
| | - Kou-Chen Liu
- Department of Electronics Engineering, Chang Gung University, Taoyuan 33302, Taiwan
- Center for Biomedical Engineering, Chang Gung University, Taoyuan 33302, Taiwan
- Division of Pediatric Infectious Disease, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
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Purwidyantri A, Prabowo BA, Karina M, Srikandace Y, Nuraditya A, Taufik Y. Cost-effective green synthesis of CuO nanorods for phenol sensor. ACTA ACUST UNITED AC 2020. [DOI: 10.1088/1755-1315/483/1/012001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Purwidyantri A, Karina M, Hsu CH, Srikandace Y, Prabowo BA, Lai CS. Facile Bacterial Cellulose Nanofibrillation for the Development of a Plasmonic Paper Sensor. ACS Biomater Sci Eng 2020; 6:3122-3131. [DOI: 10.1021/acsbiomaterials.9b01890] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Agnes Purwidyantri
- Research Unit for Clean Technology, Indonesian Institute of Sciences, Bandung 40135, Indonesia
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
- Biosensor Group, Chang Gung University, Taoyuan 33302, Taiwan
| | - Myrtha Karina
- Research Unit for Clean Technology, Indonesian Institute of Sciences, Bandung 40135, Indonesia
| | - Chih-Hsien Hsu
- Department of Electronic Engineering, Chang Gung University, Taoyuan 33302, Taiwan
| | - Yoice Srikandace
- Research Unit for Clean Technology, Indonesian Institute of Sciences, Bandung 40135, Indonesia
| | - Briliant Adhi Prabowo
- International Iberian Nanotechnology Laboratory, 4715-330 Braga, Portugal
- Research Center for Electronics and Telecommunications, Indonesian Institute of Sciences, Bandung 40135, Indonesia
- Biosensor Group, Chang Gung University, Taoyuan 33302, Taiwan
| | - Chao-Sung Lai
- Department of Electronic Engineering, Chang Gung University, Taoyuan 33302, Taiwan
- Biosensor Group, Chang Gung University, Taoyuan 33302, Taiwan
- Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan
- Department of Materials Engineering, Ming-Chi University of Technology, New Taipei City 24301, Taiwan
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Purwidyantri A, Hsu CH, Yang CM, Prabowo BA, Tian YC, Lai CS. Plasmonic nanomaterial structuring for SERS enhancement. RSC Adv 2019; 9:4982-4992. [PMID: 35514657 PMCID: PMC9060671 DOI: 10.1039/c8ra10656h] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 01/24/2019] [Indexed: 12/25/2022] Open
Abstract
Au island over nanospheres (AuIoN) structures featuring a three-dimensional (3D) nanostructure on a two-dimensional (2D) array of nanospheres with different adhesion layers were fabricated as surface-enhanced Raman scattering (SERS) substrates.
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Affiliation(s)
- Agnes Purwidyantri
- Research Unit for Clean Technology
- Indonesian Institute of Sciences
- Bandung
- Indonesia
- Biosensor Group
| | - Chih-Hsien Hsu
- Biosensor Group
- Chang-Gung University
- Taiwan
- Department of Electronics Engineering
- Chang Gung University
| | - Chia-Ming Yang
- Biosensor Group
- Chang-Gung University
- Taiwan
- Department of Electronics Engineering
- Chang Gung University
| | - Briliant Adhi Prabowo
- Department of Electronics Engineering
- Chang Gung University
- Taiwan
- Research Center for Electronics and Telecommunications
- Indonesian Institute of Sciences
| | - Ya-Chung Tian
- Kidney Research Center Department of Nephrology
- Chang Gung Memorial Hospital
- Taiwan
| | - Chao-Sung Lai
- Biosensor Group
- Chang-Gung University
- Taiwan
- Department of Electronics Engineering
- Chang Gung University
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Prabowo BA, Purwidyantri A, Liu KC. Surface Plasmon Resonance Optical Sensor: A Review on Light Source Technology. Biosensors (Basel) 2018; 8:E80. [PMID: 30149679 PMCID: PMC6163427 DOI: 10.3390/bios8030080] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 08/22/2018] [Accepted: 08/22/2018] [Indexed: 01/19/2023]
Abstract
The notion of surface plasmon resonance (SPR) sensor research emerged more than eight decades ago from the first observed phenomena in 1902 until the first introduced principles for gas sensing and biosensing in 1983. The sensing platform has been hand-in-hand with the plethora of sensing technology advancement including nanostructuring, optical technology, fluidic technology, and light source technology, which contribute to substantial progress in SPR sensor evolution. Nevertheless, the commercial products of SPR sensors in the market still require high-cost investment, component, and operation, leading to unaffordability for their implementation in a low-cost point of care (PoC) or laboratories. In this article, we present a comprehensive review of SPR sensor development including the state of the art from a perspective of light source technology trends. Based on our review, the trend of SPR sensor configurations, as well as its methodology and optical designs are strongly influenced by the development of light source technology as a critical component. These simultaneously offer new underlying principles of SPR sensor towards miniaturization, portability, and disposability features. The low-cost solid-state light source technology, such as laser diode, light-emitting diode (LED), organic light emitting diode (OLED) and smartphone display have been reported as proof of concept for the future of low-cost SPR sensor platforms. Finally, this review provides a comprehensive overview, particularly for SPR sensor designers, including emerging engineers or experts in this field.
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Affiliation(s)
- Briliant Adhi Prabowo
- Research Center for Electronics and Telecommunications, Indonesian Institute of Sciences, Bandung 40135, Indonesia.
- Department of Electronics Engineering, Chang Gung University, Taoyuan 33302, Taiwan.
| | - Agnes Purwidyantri
- Research Unit for Clean Technology, Indonesian Institute of Sciences, Bandung 40135, Indonesia.
| | - Kou-Chen Liu
- Department of Electronics Engineering, Chang Gung University, Taoyuan 33302, Taiwan.
- Division of Pediatric Infectious Disease, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan.
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan.
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Prabowo BA, Wang RY, Secario MK, Ou PT, Alom A, Liu JJ, Liu KC. Rapid detection and quantification of Enterovirus 71 by a portable surface plasmon resonance biosensor. Biosens Bioelectron 2017; 92:186-191. [DOI: 10.1016/j.bios.2017.01.043] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 01/11/2017] [Accepted: 01/20/2017] [Indexed: 12/27/2022]
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Prabowo BA, Alom A, Secario MK, Masim FCP, Lai HC, Hatanaka K, Liu KC. Graphene-based Portable SPR Sensor for the Detection of Mycobacterium tuberculosis DNA Strain. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.proeng.2016.11.520] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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