Near-infrared-driven Au-decorated polymer-metal protein microfibers with bacterial filtration ability for use in photothermal sterilization

Mu, Wei-Yu; Akrofi, Robertson; Chen, Qiuyun

doi:10.1016/j.cej.2020.124236

Cited by 15 publications

(3 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The two most important nonionizing radiations are infrared (IR) and ultraviolet (UV) radiations. Near-IR radiation (700 to 1000 nm) is usually employed in photothermal materials to convert radiation into heat and kill bacteria; this method is suitable for biological applications due to the high penetration into tissues, presenting a few side effects in the organs [ 50 , 51 ]. However, UV radiation is the most known and applied as a sterilization technique for scaffolds and nanoparticles with biomedical applications; for this reason, the following sections will focus only on this technique.…”

Section: Nonionizing Radiationmentioning

confidence: 99%

Insights into Terminal Sterilization Processes of Nanoparticles for Biomedical Applications

et al. 2021

View full text Add to dashboard Cite

Nanoparticles possess a huge potential to be employed in numerous biomedical purposes; their applications may include drug delivery systems, gene therapy, and tissue engineering. However, the in vivo use in biomedical applications requires that nanoparticles exhibit sterility. Thus, diverse sterilization techniques have been developed to remove or destroy microbial contamination. The main sterilization methods include sterile filtration, autoclaving, ionizing radiation, and nonionizing radiation. Nonetheless, the sterilization processes can alter the stability, zeta potential, average particle size, and polydispersity index of diverse types of nanoparticles, depending on their composition. Thus, these methods may produce unwanted effects on the nanoparticles’ characteristics, affecting their safety and efficacy. Moreover, each sterilization method possesses advantages and drawbacks; thus, the suitable method’s choice depends on diverse factors such as the formulation’s characteristics, batch volume, available methods, and desired application. In this article, we describe the current sterilization methods of nanoparticles. Moreover, we discuss the advantages and drawbacks of these methods, pointing out the changes in nanoparticles’ biological and physicochemical characteristics after sterilization. Our main objective was to offer a comprehensive overview of terminal sterilization processes of nanoparticles for biomedical applications.

show abstract

Section: Nonionizing Radiationmentioning

confidence: 99%

Insights into Terminal Sterilization Processes of Nanoparticles for Biomedical Applications

et al. 2021

View full text Add to dashboard Cite

show abstract

“…It was reported that organics influenced the function and bioactivities by the re-biomineralization of FeS–protein clusters . Therefore, functional protein materials can be obtained by the assembly of active organics (photosensitizers or metal porphyrins) and metal ions with proteins via π–π stacking, hydrogen bonding, or hydrophobic interaction. − Porphyrin and its assemblies showed good electrochemical properties. − Moreover, metal porphyrins were reported as biomimetic catalysts of CYP450 for the degradation of antibiotic norfloxacin . The assembly of metal complexes with biomolecules is a promising strategy for recognition of pathogen infection. , Caffeic acid (CA) is a kind of polyphenol for sterilization in plant protection .…”

Section: Introductionmentioning

confidence: 99%

Bacterium-Sculpted Porphyrin–Protein–Iron Sulfide Clusters for Distinction and Inhibition of Staphylococcus aureus

Chen

2022

Langmuir

Self Cite

View full text Add to dashboard Cite

Microbe-catalyzed surface modification is a promising method for the production of special targeting nanomaterials. A bacterium-selective material can be obtained by investigating the microbe-catalyzed mineralization of proteins. Herein, a novel method was fabricated for the biosynthesis of FeS-decorated porphyrin−protein clusters (P-CA@BE) via E. coli (Escherichia coli)catalyzed bio-Fe(III) reduction and bio-sulfidation of porphyrin (P), caffeic acid (CA), and protein [bovine serum albumin (BSA)] assemblies. The assembly (P-CA@BSA) was identified by spectroscopic methods. Next, the P-CA@BSA assembly was transferred into FeS-decorated porphyrin−protein clusters (P-CA@BE) catalyzed by E. coli. There are partial β-folding proteins in P-CA@BE, which selectively recognize S. aureus (Staphylococcus aureus) and show different antibacterial properties against E. coli and S. aureus. Results demonstrate that the E. coli-catalyzed mineralization of the porphyrin−protein assembly is an effective method for the biosynthesis of S. aureus-sensitive metal−protein clusters.

show abstract

“…The drug resistant bacteria and the effect of bactericides to environment have caused a public healthy issue [1,2]. It is necessary to develop new bactericides for the treatment of pathogen infection [3,4].…”

Section: Introductionmentioning

confidence: 99%

A Photo-Responsive Porphyrin-Mn@Choles Complex for Bacteria Treatment

Wang

Chen

et al. 2021

J Inorg Organomet Polym

Self Cite

View full text Add to dashboard Cite

Biocompatible photo-driven producers of singlet oxygen can inhibit the growth of drug-resistant bacteria and tumors. In order to bacteria targeting generator of singlet oxygen for tumor and bacterial treatment, a metal porphyrin liposome (Phy-Mn-Ls) was prepared by the metal coordination reaction and selfassembly of porphyrin compounds with bacteria targeting polymer (HS-PEG-chol). The photo-driven production of 1 O 2 , binding with protein (BSA) and lipase, toxicity to MCF-7 breast cancer cells and inhibitory effect on the growth of Escherichia coli were investigated. Fluorescence analysis results show that Phy-Mn-Ls can bind to lipase, and it shows less effect on the conformation of BSA and is low cytotoxicity without irradiation. In particular, the good biocompatibility made Phy-Mn-Ls exhibit good photosensitive antibacterial activity and anti-tumor properties. The results demonstrate that the coordination of HS-PEG-chol with metal-phorphrin coodination is an effective way to develop bacteria targeting nano-complexes (Phy-Mn-Ls) for lipase a nity and photodriven bacteria treatment.

show abstract

Near-infrared-driven Au-decorated polymer-metal protein microfibers with bacterial filtration ability for use in photothermal sterilization

Cited by 15 publications

References 44 publications

Insights into Terminal Sterilization Processes of Nanoparticles for Biomedical Applications

Insights into Terminal Sterilization Processes of Nanoparticles for Biomedical Applications

Bacterium-Sculpted Porphyrin–Protein–Iron Sulfide Clusters for Distinction and Inhibition of Staphylococcus aureus

A Photo-Responsive Porphyrin-Mn@Choles Complex for Bacteria Treatment

Contact Info

Product

Resources

About