Enhancement of Bacterial Anti-Adhesion Properties on Robust PDMS Micro-Structure Using a Simple Flame Treatment Method
Biofilm-associated infections caused by an accumulation of micro-organisms and pathogens significantly impact the environment, health risks, and the global economy. Currently, a non-biocide-releasing superhydrophobic surface is a potential solution for antibacterial purposes. This research demonstra...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
|
| Series: | Nanomaterials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2079-4991/12/3/557 |
| _version_ | 1797485771043635200 |
|---|---|
| author | Nongluck Houngkamhang Ploymanee Chaisawat Waisaree Joksathit Sutichai Samart Sutee Chutipaijit Suphichaya Radomyos Pawasuth Saengdee Nithi Atthi |
| author_facet | Nongluck Houngkamhang Ploymanee Chaisawat Waisaree Joksathit Sutichai Samart Sutee Chutipaijit Suphichaya Radomyos Pawasuth Saengdee Nithi Atthi |
| author_sort | Nongluck Houngkamhang |
| collection | DOAJ |
| description | Biofilm-associated infections caused by an accumulation of micro-organisms and pathogens significantly impact the environment, health risks, and the global economy. Currently, a non-biocide-releasing superhydrophobic surface is a potential solution for antibacterial purposes. This research demonstrated a well-designed robust polydimethylsiloxane (PDMS) micro-structure and a flame treatment process with improved hydrophobicity and bacterial anti-adhesion properties. After the flame treatment at 700 ± 20 °C for 15 s, unique flower-petal re-entrant nano-structures were formed on pillars (PIL-F, width: 1.87 ± 0.30 μm, height: 7.76 ± 0.13 μm, aspect ratio (A.R.): 4.14) and circular rings with eight stripe supporters (C-RESS-F, width: 0.50 ± 0.04 μm, height: 3.55 ± 0.11 μm, A.R.: 7.10) PDMS micro-patterns. The water contact angle (WCA) and ethylene glycol contact angle (EGCA) of flame-treated flat-PDMS (FLT-F), PIL–F, and C–RESS-F patterns were (133.9 ± 3.8°, 128.6 ± 5.3°), (156.1 ± 1.5°, 151.5 ± 2.1°), and (146.3 ± 3.5°, 150.7 ± 1.8°), respectively. The <i>Escherichia coli</i> adhesion on the C-RESS-F micro-pattern with hydrophobicity and superoleophobicity was 42.6%, 31.8%, and 2.9% less than FLT-F, PIL-F, and Teflon surfaces. Therefore, the flame-treated C-RESS-F pattern is one of the promising bacterial anti-adhesion micro-structures in practical utilization for various applications. |
| first_indexed | 2024-03-09T23:23:34Z |
| format | Article |
| id | doaj.art-9807e926abf748c19195c6366ae5f4a9 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T23:23:34Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-9807e926abf748c19195c6366ae5f4a92023-11-23T17:22:45ZengMDPI AGNanomaterials2079-49912022-02-0112355710.3390/nano12030557Enhancement of Bacterial Anti-Adhesion Properties on Robust PDMS Micro-Structure Using a Simple Flame Treatment MethodNongluck Houngkamhang0Ploymanee Chaisawat1Waisaree Joksathit2Sutichai Samart3Sutee Chutipaijit4Suphichaya Radomyos5Pawasuth Saengdee6Nithi Atthi7College of Materials Innovation and Technology, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok 10520, ThailandCollege of Materials Innovation and Technology, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok 10520, ThailandCollege of Materials Innovation and Technology, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok 10520, ThailandCollege of Materials Innovation and Technology, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok 10520, ThailandCollege of Materials Innovation and Technology, King Mongkut’s Institute of Technology Ladkrabang (KMITL), Bangkok 10520, ThailandThai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, ThailandThai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, ThailandThai Microelectronics Center (TMEC), National Electronics and Computer Technology Center (NECTEC), Chachoengsao 24000, ThailandBiofilm-associated infections caused by an accumulation of micro-organisms and pathogens significantly impact the environment, health risks, and the global economy. Currently, a non-biocide-releasing superhydrophobic surface is a potential solution for antibacterial purposes. This research demonstrated a well-designed robust polydimethylsiloxane (PDMS) micro-structure and a flame treatment process with improved hydrophobicity and bacterial anti-adhesion properties. After the flame treatment at 700 ± 20 °C for 15 s, unique flower-petal re-entrant nano-structures were formed on pillars (PIL-F, width: 1.87 ± 0.30 μm, height: 7.76 ± 0.13 μm, aspect ratio (A.R.): 4.14) and circular rings with eight stripe supporters (C-RESS-F, width: 0.50 ± 0.04 μm, height: 3.55 ± 0.11 μm, A.R.: 7.10) PDMS micro-patterns. The water contact angle (WCA) and ethylene glycol contact angle (EGCA) of flame-treated flat-PDMS (FLT-F), PIL–F, and C–RESS-F patterns were (133.9 ± 3.8°, 128.6 ± 5.3°), (156.1 ± 1.5°, 151.5 ± 2.1°), and (146.3 ± 3.5°, 150.7 ± 1.8°), respectively. The <i>Escherichia coli</i> adhesion on the C-RESS-F micro-pattern with hydrophobicity and superoleophobicity was 42.6%, 31.8%, and 2.9% less than FLT-F, PIL-F, and Teflon surfaces. Therefore, the flame-treated C-RESS-F pattern is one of the promising bacterial anti-adhesion micro-structures in practical utilization for various applications.https://www.mdpi.com/2079-4991/12/3/557antifoulingbacterial anti-adhesion<i>Escherichia coli</i>flame treatmentflower petal nano-structurePDMS |
| spellingShingle | Nongluck Houngkamhang Ploymanee Chaisawat Waisaree Joksathit Sutichai Samart Sutee Chutipaijit Suphichaya Radomyos Pawasuth Saengdee Nithi Atthi Enhancement of Bacterial Anti-Adhesion Properties on Robust PDMS Micro-Structure Using a Simple Flame Treatment Method Nanomaterials antifouling bacterial anti-adhesion <i>Escherichia coli</i> flame treatment flower petal nano-structure PDMS |
| title | Enhancement of Bacterial Anti-Adhesion Properties on Robust PDMS Micro-Structure Using a Simple Flame Treatment Method |
| title_full | Enhancement of Bacterial Anti-Adhesion Properties on Robust PDMS Micro-Structure Using a Simple Flame Treatment Method |
| title_fullStr | Enhancement of Bacterial Anti-Adhesion Properties on Robust PDMS Micro-Structure Using a Simple Flame Treatment Method |
| title_full_unstemmed | Enhancement of Bacterial Anti-Adhesion Properties on Robust PDMS Micro-Structure Using a Simple Flame Treatment Method |
| title_short | Enhancement of Bacterial Anti-Adhesion Properties on Robust PDMS Micro-Structure Using a Simple Flame Treatment Method |
| title_sort | enhancement of bacterial anti adhesion properties on robust pdms micro structure using a simple flame treatment method |
| topic | antifouling bacterial anti-adhesion <i>Escherichia coli</i> flame treatment flower petal nano-structure PDMS |
| url | https://www.mdpi.com/2079-4991/12/3/557 |
| work_keys_str_mv | AT nongluckhoungkamhang enhancementofbacterialantiadhesionpropertiesonrobustpdmsmicrostructureusingasimpleflametreatmentmethod AT ploymaneechaisawat enhancementofbacterialantiadhesionpropertiesonrobustpdmsmicrostructureusingasimpleflametreatmentmethod AT waisareejoksathit enhancementofbacterialantiadhesionpropertiesonrobustpdmsmicrostructureusingasimpleflametreatmentmethod AT sutichaisamart enhancementofbacterialantiadhesionpropertiesonrobustpdmsmicrostructureusingasimpleflametreatmentmethod AT suteechutipaijit enhancementofbacterialantiadhesionpropertiesonrobustpdmsmicrostructureusingasimpleflametreatmentmethod AT suphichayaradomyos enhancementofbacterialantiadhesionpropertiesonrobustpdmsmicrostructureusingasimpleflametreatmentmethod AT pawasuthsaengdee enhancementofbacterialantiadhesionpropertiesonrobustpdmsmicrostructureusingasimpleflametreatmentmethod AT nithiatthi enhancementofbacterialantiadhesionpropertiesonrobustpdmsmicrostructureusingasimpleflametreatmentmethod |