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Dawit H, Zhang Q, Li Y, Islam SR, Mao J, Wang L. Design of Electro-Thermal Glove with Sensor Function for Raynaud's Phenomenon Patients. MATERIALS 2021; 14:ma14020377. [PMID: 33466727 PMCID: PMC7828797 DOI: 10.3390/ma14020377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/29/2020] [Accepted: 01/12/2021] [Indexed: 12/19/2022]
Abstract
Raynaud’s phenomenon (RP) is a disease that mainly affects human fingertips during cold weather. It is difficult to treat this disease using medicine, apart from keeping the body in a warm environment. In this research, conductive knitted fabrics were fabricated to help relax the vessels of the patient’s fingertips by providing proper heat, and also serving as a sensor to detect finger motion after relaxation of the blood vessels of patients. Four different structures, termed plain, purl, interlock, and rib were produced using conductive silver/PE (polyethylene) yarn and wool yarn, with a computerized flat knitting machine. The effect of knitted structure on the electro-thermal behavior, sensitivity, and stability of resistance change (∆R/R) under different tensile forces was investigated. By comprehensive comparison, the purl structure was identified as the preferred structure for the heating glove for RP patients, owing to superior electro-thermal behavior. Additionally, the purl structure had a greater capacity to detect different motions with stable resistance change. This potential electro-thermal glove could be used for functional, as well as aesthetic (fashion) purposes, and could be worn at any time and occasion with complete comfort.
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Affiliation(s)
- Hewan Dawit
- Key Laboratory of Textile Science & Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Songjiang District, Shanghai 201620, China; (H.D.); (Q.Z.); (Y.L.); (S.R.I.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Qian Zhang
- Key Laboratory of Textile Science & Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Songjiang District, Shanghai 201620, China; (H.D.); (Q.Z.); (Y.L.); (S.R.I.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Yimeng Li
- Key Laboratory of Textile Science & Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Songjiang District, Shanghai 201620, China; (H.D.); (Q.Z.); (Y.L.); (S.R.I.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
| | - Syed Rashedul Islam
- Key Laboratory of Textile Science & Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Songjiang District, Shanghai 201620, China; (H.D.); (Q.Z.); (Y.L.); (S.R.I.)
| | - Jifu Mao
- Key Laboratory of Textile Science & Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Songjiang District, Shanghai 201620, China; (H.D.); (Q.Z.); (Y.L.); (S.R.I.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
- Correspondence: (J.M.); (L.W.)
| | - Lu Wang
- Key Laboratory of Textile Science & Technology of Ministry of Education and College of Textiles, Donghua University, 2999 North Renmin Road, Songjiang District, Shanghai 201620, China; (H.D.); (Q.Z.); (Y.L.); (S.R.I.)
- Key Laboratory of Textile Industry for Biomedical Textile Materials and Technology, Donghua University, Shanghai 201620, China
- Correspondence: (J.M.); (L.W.)
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Rahimifard M, Mohammadi Ziarani G, Badiei A, Yazdian F. Synthesis of Polyhedral Oligomeric Silsesquioxane (POSS) with Multifunctional Sulfonamide Groups Through Click Chemistry. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0552-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bertram JR, Penn A, Nee MJ, Rathnayake H. A Novel n-Type Organosilane-Metal Ion Hybrid of Rhodamine B and Copper Cation for Low-Temperature Thermoelectric Materials. ACS APPLIED MATERIALS & INTERFACES 2017; 9:10946-10954. [PMID: 28272862 DOI: 10.1021/acsami.6b15857] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An n-type organosilane-metal ion hybrid of Rhodamine B-silane and copper cation (Cu-RBS) was investigated as a low-temperature thermoelectric material. Computational analysis revealed the most likely localized binding site of Cu2+ was to the Rhodamine B core and provided predictions of molecular orbitals and electrostatic potentials upon complexation. The concentration-dependent optical absorption and emission spectra confirmed the effective metal-ligand charge transfer from Cu2+ to the xanthene core of RBS, indicating the potential for improved electrical properties for the complex relative to RBS. The electrical conductivity and Seebeck thermoelectric (TE) behavior were evaluated and compared with its precursor complex of Rhodamine B and copper cation. While a moderately high electrical conductivity of 4.38 S m-1 was obtained for the Cu-RBS complex, the relatively low Seebeck coefficient of -26.2 μV/K resulted in a low TE power factor. However, compared to other organic doped materials, these results were promising toward developing n-type thermoelectric materials with no doping agents. Both phase segregation and thin film heterogeneity remain to be optimized; thus, the balance between Cu2+ domains and RBS domain phases will likely yield higher Seebeck coefficients and improved power factors.
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Affiliation(s)
- John R Bertram
- Department of Chemistry, Western Kentucky University , Bowling Green, Kentucky 42101, United States
| | - Aubrey Penn
- Department of Chemistry, Western Kentucky University , Bowling Green, Kentucky 42101, United States
| | - Matthew J Nee
- Department of Chemistry, Western Kentucky University , Bowling Green, Kentucky 42101, United States
| | - Hemali Rathnayake
- Department of Chemistry, Western Kentucky University , Bowling Green, Kentucky 42101, United States
- Department of Nanoscience, University of North Carolina at Greensboro , Greensboro, North Carolina 27401, United States
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