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Nain A, Huang HH, Chevrier DM, Tseng YT, Sangili A, Lin YF, Huang YF, Chang L, Chang FC, Huang CC, Tseng FG, Chang HT. Catalytic and photoresponsive BiZ/Cu xS heterojunctions with surface vacancies for the treatment of multidrug-resistant clinical biofilm-associated infections. NANOSCALE 2021; 13:18632-18646. [PMID: 34734624 DOI: 10.1039/d1nr06358h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We report a one-pot facile synthesis of highly photoresponsive bovine serum albumin (BSA) templated bismuth-copper sulfide nanocomposites (BSA-BiZ/CuxS NCs, where BiZ represents in situ formed Bi2S3 and bismuth oxysulfides (BOS)). As-formed surface vacancies and BiZ/CuxS heterojunctions impart superior catalytic, photodynamic and photothermal properties. Upon near-infrared (NIR) irradiation, the BSA-BiZ/CuxS NCs exhibit broad-spectrum antibacterial activity, not only against standard multidrug-resistant (MDR) bacterial strains but also against clinically isolated MDR bacteria and their associated biofilms. The minimum inhibitory concentration of BSA-BiZ/CuxS NCs is 14-fold lower than that of BSA-CuxS NCs because their multiple heterojunctions and vacancies facilitated an amplified phototherapeutic response. As-prepared BSA-BiZ/CuxS NCs exhibited substantial biofilm inhibition (90%) and eradication (>75%) efficiency under NIR irradiation. Furthermore, MRSA-infected diabetic mice were immensely treated with BSA-BiZ/CuxS NCs coupled with NIR irradiation by destroying the mature biofilm on the wound site, which accelerated the wound healing process via collagen synthesis and epithelialization. We demonstrate that BSA-BiZ/CuxS NCs with superior antimicrobial activity and high biocompatibility hold great potential as an effective photosensitive agent for the treatment of biofilm-associated infections.
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Affiliation(s)
- Amit Nain
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
- Nano Science and Technology Program, Taiwan International Graduate Program, Taipei 11529, Taiwan
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan.
| | - Hao-Hsin Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Daniel M Chevrier
- Biosciences and Biotechnologies Institute of Aix-Marseille (BIAM), CEA Cadarache, Bâtiment 1900, Saint-Paul-lez-Durance, France
| | - Yu-Ting Tseng
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
| | - Arumugam Sangili
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
| | - Yu-Feng Lin
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
| | - Yu-Fen Huang
- Institute of Analytical and Environmental Sciences, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Lung Chang
- Department of Pediatrics, Mackay Memorial Hospital and Mackay Junior College of Medicine, Taipei, 10449, Taiwan.
| | - Fu-Chieh Chang
- Infection Control Centre, Mackay Memorial Hospital, Taipei, 10449, Taiwan
- College of Management, Yuan Ze University, Taoyuan City, 32003, Taiwan
- Nursing and Management, Mackay Junior College of Medicine, Taipei, 10650, Taiwan
| | - Chih-Ching Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan
- Centre of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Fan-Gang Tseng
- Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan.
- Research Centre for Applied Sciences Academia Sinica, Taipei 11529, Taiwan
- Frontier Research Centre on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.
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Cunha BA, Jaber N, Blum S. Vancomycin or linezolid empiric MRSA coverage with potential ventilator-associated pneumonia has no benefit or effect on outcomes: antibiotic stewardship implications. Int J Antimicrob Agents 2018; 52:733-734. [PMID: 29909171 DOI: 10.1016/j.ijantimicag.2018.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 03/29/2018] [Accepted: 06/02/2018] [Indexed: 10/28/2022]
Affiliation(s)
- Burke A Cunha
- Infectious Disease Division(,) NYU-Winthrop Hospital, Mineola, New York, USA; State University of New York, School of Medicine, Stony Brook, New York, USA.
| | - Nora Jaber
- Department of Pharmacy, NYU-Winthrop Hospital, Mineola, New York, USA
| | - Sharon Blum
- Department of Pharmacy, NYU-Winthrop Hospital, Mineola, New York, USA
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