Carbon nanodots from used green tea biochar: antibacterial applications and antibiofilm carbon coatings
Green tea has been famous and well-known for various reasons, its value has been recognized from time immemorial for its bioactivity. Green tea leaves also come as handy green tea bags, usually green tea is extracted once in hot water and then the leaves are discarded. The present study reports the...
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Tamkang University Press
2025-02-01
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| Series: | Journal of Applied Science and Engineering |
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| Online Access: | http://jase.tku.edu.tw/articles/jase-202509-28-09-0003 |
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| author | E. Elsa Sharon Jae-Wook Oh Judy Gopal |
| author_facet | E. Elsa Sharon Jae-Wook Oh Judy Gopal |
| author_sort | E. Elsa Sharon |
| collection | DOAJ |
| description | Green tea has been famous and well-known for various reasons, its value has been recognized from time immemorial for its bioactivity. Green tea leaves also come as handy green tea bags, usually green tea is extracted
once in hot water and then the leaves are discarded. The present study reports the successful reuse of these used green tea leaves from tea bags for the synthesis of carbon nanodots. Used green tea leaves biochar
was obtained by heat treatment in a muffle furnace and carbon nanodots were extracted from the biochar. The carbon nanodots were characterized to confirm their morphological and chemical characteristics. The antibacterial activity was tested against pathogenic coliforms as well as oral bacteria. The results indicated that the indigenously prepared carbon nanodots exhibited significant antibacterial activity. Carbon coatings were prepared from these used green tea biochar derived carbon nanodots using a simple dip coating method and their antibiofilm activity was demonstrated. For the first time, we report the successful synthesis of antibacterial carbon nanodots from used green tea biochar. |
| format | Article |
| id | doaj-art-a0b9114e888e420bac6a5080d252b0ca |
| institution | Kabale University |
| issn | 2708-9967 2708-9975 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Tamkang University Press |
| record_format | Article |
| series | Journal of Applied Science and Engineering |
| spelling | doaj-art-a0b9114e888e420bac6a5080d252b0ca2025-01-31T16:12:28ZengTamkang University PressJournal of Applied Science and Engineering2708-99672708-99752025-02-012891667167310.6180/jase.202509_28(9).0003Carbon nanodots from used green tea biochar: antibacterial applications and antibiofilm carbon coatingsE. Elsa Sharon0Jae-Wook Oh1Judy Gopal2Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai- 602105, Tamil Nadu, IndiaDepartment of Stem Cell and Regenerative Biotechnology, KIT, Konkuk University, 120 Neungdong-ro, , Gwangjin-gu, Seoul 05029, Republic of KoreaDepartment of Research and Innovation, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai- 602105, Tamil Nadu, IndiaGreen tea has been famous and well-known for various reasons, its value has been recognized from time immemorial for its bioactivity. Green tea leaves also come as handy green tea bags, usually green tea is extracted once in hot water and then the leaves are discarded. The present study reports the successful reuse of these used green tea leaves from tea bags for the synthesis of carbon nanodots. Used green tea leaves biochar was obtained by heat treatment in a muffle furnace and carbon nanodots were extracted from the biochar. The carbon nanodots were characterized to confirm their morphological and chemical characteristics. The antibacterial activity was tested against pathogenic coliforms as well as oral bacteria. The results indicated that the indigenously prepared carbon nanodots exhibited significant antibacterial activity. Carbon coatings were prepared from these used green tea biochar derived carbon nanodots using a simple dip coating method and their antibiofilm activity was demonstrated. For the first time, we report the successful synthesis of antibacterial carbon nanodots from used green tea biochar.http://jase.tku.edu.tw/articles/jase-202509-28-09-0003used green tea leavescarbon nanodotsantibacterialantibiofilm |
| spellingShingle | E. Elsa Sharon Jae-Wook Oh Judy Gopal Carbon nanodots from used green tea biochar: antibacterial applications and antibiofilm carbon coatings Journal of Applied Science and Engineering used green tea leaves carbon nanodots antibacterial antibiofilm |
| title | Carbon nanodots from used green tea biochar: antibacterial applications and antibiofilm carbon coatings |
| title_full | Carbon nanodots from used green tea biochar: antibacterial applications and antibiofilm carbon coatings |
| title_fullStr | Carbon nanodots from used green tea biochar: antibacterial applications and antibiofilm carbon coatings |
| title_full_unstemmed | Carbon nanodots from used green tea biochar: antibacterial applications and antibiofilm carbon coatings |
| title_short | Carbon nanodots from used green tea biochar: antibacterial applications and antibiofilm carbon coatings |
| title_sort | carbon nanodots from used green tea biochar antibacterial applications and antibiofilm carbon coatings |
| topic | used green tea leaves carbon nanodots antibacterial antibiofilm |
| url | http://jase.tku.edu.tw/articles/jase-202509-28-09-0003 |
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