Photoluminescent ZnO Nanoparticles and  Their Biological Applications

Zhang, Zhengyong; Xiong, Hongwei

doi:10.3390/ma8063101

Cited by 194 publications

(134 citation statements)

References 148 publications

Supporting

Mentioning

131

Contrasting

Unclassified

Order By: Relevance

“…ZnO NP is a less toxic and low-cost nanoparticle that can be used in many fields that include antibacterial, antifungal, antioxidant, and anticancer ones [24,25]. The antibacterial activity of ZnO NP was dependent on their capability to activate excess ROS generation such as superoxide anion, hydrogen peroxide, and hydroxyl radical generation [26]. ZnO NP antibacterial activity may associate with the accretion in bacterial cells cytoplasm and promote the release of Zn 2+ .…”

Section: Characterization Of Zinc Oxide Nanoparticlesmentioning

confidence: 99%

In Vitro Analysis: The Antimicrobial and Antioxidant Activity of Zinc Oxide Nanoparticles From Curcuma Longa

Jacob

Periakaruppan

2019

Asian J Pharm Clin Res

View full text Add to dashboard Cite

Objective: Curcuma longa is a known natural medicine for inflammation from ancient times. It has a low absorption rate and poor solubility. Hence, it is used for the green synthesis of nanoparticles. Zinc oxide nanoparticle (ZnO NPs) is famous nanoparticles which are economical, less toxic, and brilliantly biocompatible. They have potential biomedical properties, mainly anticancer, antidiabetic, and antimicrobial.Methods: The present study was designed to investigate in vitro analysis of the antimicrobial activity against pathogenic bacteria and fungi and its ability to scavenge reactive oxygen radicals of ZnO NPs.Results and Conclusion: The results indicated that ZnO NPs produced from C. longa had higher antimicrobial activity against Escherichia coli, Staphylococcus aureus, Streptococcus pyogenes, and Candida albicans. Therefore, we suggest that ZnO NPs can be used as the antimicrobial agent. It is a good scavenger of superoxide radical, nitric oxide, and hydrogen peroxide and has reducing power, which is greater than ascorbic acid at a higher concentration.

show abstract

Section: Characterization Of Zinc Oxide Nanoparticlesmentioning

confidence: 99%

In Vitro Analysis: The Antimicrobial and Antioxidant Activity of Zinc Oxide Nanoparticles From Curcuma Longa

Jacob

Periakaruppan

2019

Asian J Pharm Clin Res

View full text Add to dashboard Cite

show abstract

“…6–8 There are two major types of tattoo pigments in clinical use but with significant limitations: (i) conventional carbon graphite and India ink, 6 which are cosmetically unappealing and may be mistaken for a melanocytic lesion, and (ii) fluorescent particles (e.g., ZnO or dye-doped poly(methyl methacrylate) (PMMA) particles), 7,8 which can only be visualized under UV light. To permanently remove these long-lasting fluorescent tattoo marks, 9,10 laser or surgical treatments are often needed. In addition, both tattoo pigments may cause local inflammatory responses ( e.g ., dermatitis), leading to discomfort at the tattoo sites.…”

mentioning

confidence: 99%

Cross-Linked Fluorescent Supramolecular Nanoparticles as Finite Tattoo Pigments with Controllable Intradermal Retention Times

Choi

Zhu

et al. 2016

ACS Nano

View full text Add to dashboard Cite

Tattooing has been utilized by the medical community for precisely demarcating anatomic landmarks. This practice is especially important for identifying biopsy sites of nonmelanoma skin cancer (NMSC) due to the long interval (i.e., up to 3 months) between the initial diagnostic biopsy and surgical treatment. Commercially available tattoo pigments possess several issues, which include causing poor cosmesis, being mistaken for a melanocytic lesion, requiring additional removal procedures when no longer desired, and potentially inducing inflammatory responses. The ideal tattoo pigment for labeling of skin biopsy sites for NMSC requires (i) invisibility under ambient light, (ii) fluorescence under a selective light source, (iii) a finite intradermal retention time (ca. 3 months), and (iv) biocompatibility. Herein, we introduce cross-linked fluorescent supra-molecular nanoparticles (c-FSNPs) as a “finite tattoo” pigment, with optimized photophysical properties and intradermal retention time to achieve successful in vivo finite tattooing. Fluorescent supramolecular nanoparticles encapsulate a fluorescent conjugated polymer, poly[5-methoxy-2-(3-sulfopropoxy)-1,4-phenylenevinylene] (MPS-PPV), into a core via a supramolecular synthetic approach. FSNPs which possess fluorescent properties superior to those of the free MPS-PPV are obtained through a combinatorial screening process. Covalent cross-linking of FSNPs results in micrometer-sized c-FSNPs, which exhibit a size-dependent intradermal retention. The 1456 nm sized c-FSNPs display an ideal intradermal retention time (ca. 3 months) for NMSC lesion labeling, as observed in an in vivo tattoo study. In addition, the c-FSNPs induce undetectable inflammatory responses after tattooing. We believe that the c-FSNPs can serve as a “finite tattoo” pigment to label potential malignant NMSC lesions.

show abstract

“…The same antimicrobial effect was observed till 5 days of incubation. Similarly, it has been reported that the commendable antimicrobial activity of the composite relays on the presence of nanoZnO particles in the matrix where Zn 2+ ions attack the negatively charged cell wall and will lead to leakage and ultimately in death of bacteria [35].…”

Section: Antimicrobial Properties Of Neat and Znse Nanoparticles Incomentioning

confidence: 87%

ZnSe Nanoparticles Reinforced Biopolymeric Soy Protein Isolate Film

Kumar

Praveen²,

Rani³

et al. 2019

Journal of Renewable Materials

View full text Add to dashboard Cite

ZnSe nanoparticles have been synthesized by microwave assisted method by using zinc chloride, selenium powder and ethylene diamine. The synthesized nanoparticles have been characterized structurally by FT-IR and XRD as well as morphological characterization was done by scanning electron microscope (SEM). The crystallite size after synthesis was obtained around 30 nm for pure ZnSe nanocrystallites. However, from SEM micrograph, agglomerated ZnSe nanoparticles of irregular shapes were observed. The assynthesized ZnSe nanoparticles at different contents (1 to 5% w/w w.r.t SPI) were incorporated into soy protein isolate (SPI) to produce reinforced SPI films by solution casting method. The ZnSe nanoparticles incorporated SPI suspensions were subjected to molecular mass and specific conductivity studies. Neat and ZnSe nanoparticles incorporated SPI films were structurally and mechanically characterized by FT-IR and tensile properties, respectively. Transmittance and water uptake studies were also carried out for ZnSe nanoparticles incorporated SPI films. The tensile strength and modulus increased from 5.80 MPa to 10.06 MPa and 18.84 MPa to 94.70 MPa with the increase in the contents of ZnSe nanoparticles from 0 to 5%. Moreover, the results also revealed a good antibacterial effect in ZnSe nanoparticles incorporated SPI film. The main application of nanoparticles incorporated SPI film will be in the area of biodegradable packaging.

show abstract

Photoluminescent ZnO Nanoparticles and Their Biological Applications

Cited by 194 publications

References 148 publications

In Vitro Analysis: The Antimicrobial and Antioxidant Activity of Zinc Oxide Nanoparticles From Curcuma Longa

In Vitro Analysis: The Antimicrobial and Antioxidant Activity of Zinc Oxide Nanoparticles From Curcuma Longa

Cross-Linked Fluorescent Supramolecular Nanoparticles as Finite Tattoo Pigments with Controllable Intradermal Retention Times

ZnSe Nanoparticles Reinforced Biopolymeric Soy Protein Isolate Film

Contact Info

Product

Resources

About