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Visible Light-Mediated Photoactivated Sulfur Quantum Dots as Heightened Antibacterial Agents.
Shivalkar, Saurabh; Arshad, Farwa; Sahoo, Amaresh Kumar; Sk, Md Palashuddin.
  • Shivalkar S; Department of Applied Sciences, Indian Institute of Information Technology Allahabad, Jhalwa, Prayagraj 211012, Uttar Pradesh, India.
  • Arshad F; Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh , India.
  • Sahoo AK; Department of Applied Sciences, Indian Institute of Information Technology Allahabad, Jhalwa, Prayagraj 211012, Uttar Pradesh, India.
  • Sk MP; Department of Chemistry, Aligarh Muslim University, Aligarh 202002, Uttar Pradesh , India.
ACS Omega ; 7(37): 33358-33364, 2022 Sep 20.
Article in English | MEDLINE | ID: covidwho-2042305
ABSTRACT
The need for antimicrobial or antibacterial fabric has increased exponentially in recent past years, especially after the outbreak of the SARS-CoV-2 pandemic. Several studies have been conducted, and the primary focus is the development of simple, automated, performance efficient and cost-efficient fabric for disposable and frequent-use items such as personal protective materials. In this regard, we have explored the light-driven antibacterial activity of water-soluble Sdots for the first time. Sdots are a new class of non-metallic quantum dots of the nanosulfur family having a polymeric sulfur core. These Sdots exhibited excellent antibacterial activity by generating reactive oxygen species under sunlight or visible light. Under 6 h of sunlight irradiation, it was observed that >90% of the bacterial growth was inhibited in the presence of Sdots. Furthermore, low toxic Sdots were employed to develop antibacterial fabric for efficiently cleaning the bacterial infection. The prominent zone of inhibition of up to 9 mm was observed post 12 h incubation of Sdots treated fabric with E. coli in the presence of visible light. Furthermore, the SEM study confirmed the bactericidal effect of these Sdots-treated fabrics. Moreover, this study might help explore the photocatalytic disinfection application of Sdots in diverse locations of interest, Sdots-based photodynamic antimicrobial chemotherapy application, and provide an opportunity to develop Sdots as a visible light photocatalyst for organic transformations and other promising applications.

Full text: Available Collection: International databases Database: MEDLINE Language: English Journal: ACS Omega Year: 2022 Document Type: Article Affiliation country: Acsomega.2c03968

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Full text: Available Collection: International databases Database: MEDLINE Language: English Journal: ACS Omega Year: 2022 Document Type: Article Affiliation country: Acsomega.2c03968