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Tangnorawich B, Magmee A, Roungpaisan N, Toommee S, Parcharoen Y, Pechyen C. Effect of Polybutylene Succinate Additive in Polylactic Acid Blend Fibers via a Melt-Blown Process. Molecules 2023; 28:7215. [PMID: 37894694 PMCID: PMC10608906 DOI: 10.3390/molecules28207215] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023] Open
Abstract
This work aimed to study the influence of the polybutylene succinate (PBS) content on the physical, thermal, mechanical, and chemical properties of the obtained polylactic acid (PLA)/PBS composite fibers. PLA/PBS blend fibers were prepared by a simple melt-blown process capable of yielding nanofibers. Morphological analysis revealed that the fiber size was irregular and discontinuous in length. Including PBS affected the fiber size distribution, and the fibers had a smoother surface with increased amounts of added PBS. Differential scanning calorimetry analysis (DSC) revealed that the crystallization temperature of the PLA sheet (105.8 °C) was decreased with increasing PBS addition levels down to 91.7 °C at 10 wt.% PBS. This suggests that the addition of PBS may affect PLA crystallization, which is consistent with the X-ray diffraction analysis that revealed that the crystallinity of PLA (19.2%) was increased with increasing PBS addition up to 28.1% at 10 wt% PBS. Moreover, adding PBS increased the tensile properties while the % elongation at break was significantly decreased.
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Affiliation(s)
- Benchamaporn Tangnorawich
- Department of Physics, Faculty of Science and Technology, Thammasat University, Khlong Luang 12120, Thailand
- Thammasat University Center of Excellence in Modern Technology and Advanced Manufacturing for Medical Innovation, Thammasat University, Khlong Luang 12120, Thailand
| | - Areerut Magmee
- Department of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Khlong Luang 12120, Thailand
| | - Nanjaporn Roungpaisan
- Department of Textile Chemistry Engineering, Faculty of Engineering, Rajamangala University, Khlong Luang 12120, Thailand
| | - Surachet Toommee
- Industrial Arts Program, Faculty of Industrial Technology, Kamphaeng Phet Rajabhat University, Mueang 62000, Thailand
| | - Yardnapar Parcharoen
- Thammasat University Center of Excellence in Modern Technology and Advanced Manufacturing for Medical Innovation, Thammasat University, Khlong Luang 12120, Thailand
- Chulabhorn International College of Medicine, Thammasat University, Khlong Luang 12120, Thailand
| | - Chiravoot Pechyen
- Thammasat University Center of Excellence in Modern Technology and Advanced Manufacturing for Medical Innovation, Thammasat University, Khlong Luang 12120, Thailand
- Department of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Khlong Luang 12120, Thailand
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Chuasontia I, Sirisom W, Nakpathomkun N, Toommee S, Pechyen C, Tangnorawich B, Parcharoen Y. Development and Characterization of Nano-Ink from Silicon Carbide/Multi-Walled Carbon Nanotubes/Synthesized Silver Nanoparticles for Non-Enzymatic Paraoxon Residuals Detection. Micromachines (Basel) 2023; 14:1613. [PMID: 37630149 PMCID: PMC10456359 DOI: 10.3390/mi14081613] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023]
Abstract
The ongoing advancement in the synthesis of new nanomaterials has accelerated the rapid development of non-enzymatic pesticide sensors based on electrochemical platforms. This study aims to develop and characterize Nano-ink for applying organophosphorus pesticides using paraoxon residue detection. Multi-walled carbon nanotubes, silicon carbide, and silver nanoparticles were used to create Nano-ink using a green synthesis process in 1:1:0, 1:1:0.5, and 1:1:1 ratios, respectively. These composites were combined with chitosan of varying molecular weights, which served as a stabilizing glue to keep the Nano-ink employed in a functioning electrode stable. By using X-ray powder diffraction, Raman spectroscopy, energy dispersive X-ray spectroscopy, and a field emission scanning electron microscope, researchers were able to examine the crystallinity, element composition, and surface morphology of Nano-ink. The performance of the proposed imprinted working electrode Nano-ink was investigated using cyclic voltammetry and differential pulse voltammetry techniques. The Cyclic voltammogram of Ag NPs/chitosan (medium, 50 mg) illustrated high current responses and favorable conditions of the Nano-ink modified electrode. Under the optimized conditions, the reduction currents of paraoxon using the DPV techniques demonstrated a linear reaction ranging between 0.001 and 1.0 µg/mL (R2 = 0.9959) with a limit of detection of 0.0038 µg/mL and a limit of quantitation of 0.011 µg/mL. It was concluded that the fabricated Nano-ink showed good electrochemical activity for non-enzymatic paraoxon sensing.
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Affiliation(s)
- Itsarapong Chuasontia
- Department of Physics, Faculty of Science and Technology, Thammasat University, Bangkok 12120, Thailand; (I.C.)
- Faculty of Learning Science and Education, Thammasat University, Bangkok 12120, Thailand
- Thammasat University Center of Excellence in Modern Technology and Advanced Manufacturing for Medical Innovation, Thammasat University, Bangkok 12120, Thailand
| | - Wichaya Sirisom
- Department of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Bangkok 12120, Thailand
| | - Natthapon Nakpathomkun
- Department of Physics, Faculty of Science and Technology, Thammasat University, Bangkok 12120, Thailand; (I.C.)
- Thammasat University Center of Excellence in Modern Technology and Advanced Manufacturing for Medical Innovation, Thammasat University, Bangkok 12120, Thailand
| | - Surachet Toommee
- Industrial Arts Program, Faculty of Industrial Technology, Kamphaeng Phet Rajabhat University, Kamphaeng Phet 62000, Thailand
| | - Chiravoot Pechyen
- Thammasat University Center of Excellence in Modern Technology and Advanced Manufacturing for Medical Innovation, Thammasat University, Bangkok 12120, Thailand
- Department of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Bangkok 12120, Thailand
| | - Benchamaporn Tangnorawich
- Department of Physics, Faculty of Science and Technology, Thammasat University, Bangkok 12120, Thailand; (I.C.)
- Thammasat University Center of Excellence in Modern Technology and Advanced Manufacturing for Medical Innovation, Thammasat University, Bangkok 12120, Thailand
| | - Yardnapar Parcharoen
- Thammasat University Center of Excellence in Modern Technology and Advanced Manufacturing for Medical Innovation, Thammasat University, Bangkok 12120, Thailand
- Chulabhorn International College of Medicine, Thammasat University, Bangkok 12120, Thailand
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Boonprasert K, Tharavanij T, Pechyen C, Ponsanti K, Tangnorawich B, Viyanant V, Na-Bangchang K. Validation of an electrochemical sensor based on gold nanoparticles as a point-of-care test for quantitative determination of glycated hemoglobin. PLoS One 2023; 18:e0276949. [PMID: 37384652 PMCID: PMC10309628 DOI: 10.1371/journal.pone.0276949] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 06/14/2023] [Indexed: 07/01/2023] Open
Abstract
Monitoring the level of glycated hemoglobin (HbA1c) has become the gold standard measure for diabetes mellitus (DM) diagnosis and control, used in conjunction with fasting blood glucose (FBG) and oral glucose tolerance test. This study aimed to investigate the applicability of a newly developed nanoparticle-based electrochemical sensor-multiwalled nanotubes incorporated with gold nanoparticles (POCT-HbA1cMWCNTs/AuNPs)-used as a routine point-of-care test (POCT) for detection of HbA1c for the diagnosis of DM. Finger-prick and venous blood samples were collected from 108 DM and 98 non-DM subjects to determine HbA1c and total hemoglobin by POCT-HbA1cMWCNTs/AuNPs compared with the standard HPLC method. The performance of the POCT-HbA1cMWCNTs/AuNPs was evaluated using the standard cut-off HbA1c level of >6.5%. The test's sensitivity, specificity, positive predictive value, and negative predictive value were 100.00%, 90.32%, 87.23%, and 100.00%, respectively. The probability of DM diagnosis in a subject with HbA1c >6.5% (positive predictive value) was 87.23% (82/94). The accuracy of the POCT-HbA1cMWCNTs/AuNPs was 94.18%, with a %DMV (deviation from the mean value) of 0.25%. The results indicate satisfactory assay performance and applicability of the POCT-HbA1cMWCNTs/AuNPs for diagnosis of DM using the cut-off criteria of HbA1c >6.5.
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Affiliation(s)
- Kanyarat Boonprasert
- Graduate Program in Bioclinical Sciences, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand
| | - Thipaporn Tharavanij
- Department of Medicine, Faculty of Medicine, Thammasat University, Pathum Thani, Thailand
| | - Chiravoot Pechyen
- Department of Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Pathum Thani, Thailand
| | - Khanittha Ponsanti
- Department of Physics, Faculty of Science and Technology, Thammasat University, Pathum Thani, Thailand
| | - Benchamaporn Tangnorawich
- Department of Physics, Faculty of Science and Technology, Thammasat University, Pathum Thani, Thailand
| | - Vithoon Viyanant
- Graduate Program in Bioclinical Sciences, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand
| | - Kesara Na-Bangchang
- Graduate Program in Bioclinical Sciences, Chulabhorn International College of Medicine, Thammasat University, Pathum Thani, Thailand
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Ummartyotin S, Tangnorawich B. Data on the growth of ZnO nanorods on Nylon 6 and photocatalytic activity. Data Brief 2016; 8:643-7. [PMID: 27437437 PMCID: PMC4939396 DOI: 10.1016/j.dib.2016.06.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 06/04/2016] [Accepted: 06/14/2016] [Indexed: 11/28/2022] Open
Abstract
ZnO was successfully synthesized by a conventional synthetic route using zinc nitrate as a source for ZnO formation. X-ray diffraction and thermogravimetric analysis revealed a crystal size of 66 nm of ZnO and a thermal stability of 500 °C. A small amount of ZnO particles was employed as the source for ZnO-rod growth on nylon 6 surfaces. Scanning electron microscope images were taken to evaluate the morphological properties of ZnO, which presented as a hexagonal needle-like shape. Preliminary evaluation of photocatalytic activity was performed through measurement of the degradation of methylene blue solution over 4 h.
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Affiliation(s)
- S Ummartyotin
- Advanced Functional Polymeric Materials Research Group, Faculty of Science and Technology, Thammasat University, Patumtani 12120, Thailand; Materials Research Center, In collaboration with HORIBA Scientific and Thammasat University, Patumtani 12120, Thailand
| | - B Tangnorawich
- Department of Physics, Faculty of Science and Technology, Thammasat University, Patumtani 12120, Thailand
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