Green synthesis of platinum nanoparticles by Nymphaea tetragona flower extract and their skin lightening, antiaging effects

Zhang, Yisen; Cheng, Shuo; Jia, Huiling; Zhou, Juanjuan; Xi, Jinfeng; Wang, Jun; Chen, Xue; Wu, Lifang

doi:10.1016/j.arabjc.2022.104391

Cited by 14 publications

(10 citation statements)

References 40 publications

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“…Another intriguing discovery was the oligonucleotide-dependent formulation of PtNPs that eventually mimicked laccase oxidase activity and were used for the oxidation of laccase substrates including catechol, dopamine, and hydroquinone . Furthermore, despite having a lower affinity for quercetin than mushroom tyrosinase, PtNPs have a 20-fold higher catalytic efficiency . It is also evidenced that certain nanomaterials might also imitate tyrosinase activity for the oxidation of l -tyrosine to l -dopa and then subsequent oxidation of l -dopa to dopachrome in the presence of H 2 O 2 and ascorbic acid which have been proved to play vital roles in oxidation reactions .…”

Section: Mode Of Actionmentioning

confidence: 99%

“…49 Furthermore, despite having a lower affinity for quercetin than mushroom tyrosinase, PtNPs have a 20-fold higher catalytic efficiency. 50 It is also evidenced that certain nanomaterials might also imitate tyrosinase activity for the oxidation of L-tyrosine to L-dopa and then subsequent oxidation of L-dopa to dopachrome in the presence of H 2 O 2 and ascorbic acid which have been proved to play vital roles in oxidation reactions. 51 On the other hand, intrinsic SuO x (sulfite oxidase) activity was also shown to be mimicked by molybdenum trioxide NPs that are used for the oxidation of sulfite to sulfate to regulate lipid and amino acid metabolism.…”

Section: ■ Nanozymes: Structure and Functionsmentioning

confidence: 99%

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Recent Advancements in the Formulation of Nanomaterials-Based Nanozymes, Their Catalytic Activity, and Biomedical Applications

Singh,

Rai,

Tiwari

et al. 2023

ACS Appl. Bio Mater.

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Nanozymes are nanoparticles with intrinsic enzyme-mimicking properties that have become more prevalent because of their ability to outperform conventional enzymes by overcoming their drawbacks related to stability, cost, and storage. Nanozymes have the potential to manipulate active sites of natural enzymes, which is why they are considered promising candidates to function as enzyme mimetics. Several microscopy- and spectroscopy-based techniques have been used for the characterization of nanozymes. To date, a wide range of nanozymes, including catalase, oxidase, peroxidase, and superoxide dismutase, have been designed to effectively mimic natural enzymes. The activity of nanozymes can be controlled by regulating the structural and morphological aspects of the nanozymes. Nanozymes have multifaceted benefits, which is why they are exploited on a large scale for their application in the biomedical sector. The versatility of nanozymes aids in monitoring and treating cancer, other neurodegenerative diseases, and metabolic disorders. Due to the compelling advantages of nanozymes, significant research advancements have been made in this area. Although a wide range of nanozymes act as potent mimetics of natural enzymes, their activity and specificities are suboptimal, and there is still room for their diversification for analytical purposes. Designing diverse nanozyme systems that are sensitive to one or more substrates through specialized techniques has been the subject of an in-depth study. Hence, we believe that stimuli-responsive nanozymes may open avenues for diagnosis and treatment by fusing the catalytic activity and intrinsic nanomaterial properties of nanozyme systems.

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Section: Mode Of Actionmentioning

confidence: 99%

Section: ■ Nanozymes: Structure and Functionsmentioning

confidence: 99%

Recent Advancements in the Formulation of Nanomaterials-Based Nanozymes, Their Catalytic Activity, and Biomedical Applications

Singh,

Rai,

Tiwari

et al. 2023

ACS Appl. Bio Mater.

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“…Wu et al (2017) observed a similar peak reduction of ZIF-8 and stated that such ZIF-8/silica transformation occurs due to the decoration process of silica. Further, such integration of silica into ZIF-8 tends to restructure the crystalline structure of ZIF-8 [36]. The functional groups of ZIF-8, ZIF-8/Silica nanocomposite, and silica were analyzed using FTIR spectroscopy (Figure 2B(d-f)).…”

Section: X-ray Diffraction Ftir and Bet Surface Area Analysis Of Nano...mentioning

confidence: 99%

Zeolitic Imidazole Framework/Silica Nanocomposite for Targeted Cancer Therapeutics: Comparative Study of Chemo-Drug Cisplatin (CPt) and Green Platinum (GPt) Efficacy

Alotaibi,

Al-Abbad,

Almohazey

et al. 2024

IJMS

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A chemo-drug such as cisplatin is effective for cancer treatment but remains non-specific, is susceptible to drug resistance, and induces several side effects on organ systems. Zeolitic imidazolate framework-8, a type of MOF, has gained attention, including as a drug delivery method for targeted cancer therapeutics. In this study, ZIF-8/Silica nanocomposite was synthesized using a one-pot hydrothermal technique using the Stober technique. We studied the effect of phyto-synthesized GPt and chemo-drug cisplatin CPt on ZIF-8/Silica for targeted efficacy of cancer therapy. The texture, morphology, and chemical environment of Pt on ZIF-8/Silica were analyzed using different characterization techniques such as XRD, FT-IR, BET, diffuse reflectance spectroscopy, SEM-EDX, TEM, zeta potential, and TGA analysis. The isothermal behavior of CPt and GPt adsorption was investigated using isotherm models like Langmuir, Freundlich, and Temkin isotherm. The adsorption kinetics indicating the adsorption efficiency of GPt and CPt are influenced by the concentration of Pt complex and the adsorption sites of ZIF-8/Silica. A high entrapment efficiency and loading capacity of GPt (86% and 4.3%) and CPt (91% and 4.5%) were evident on ZIF-8/Silica. The nanocomposite showed a pH-sensitive Pt release using a dialysis membrane technique. For instance, a high release of GPt (93%) was observed under pH = 6.6 in 72 h, while the release reduced to 50% at pH 7.4 in 72 h. The anti-cancer activity of nanoformulations was studied in vitro using MCF7 (breast cancer cells) and HFF-1 (human foreskin fibroblast) cells. The findings demonstrated that GPt is as effective as CPt; the EC50 value for MCF7 cells treated with ZIF-8/Silica/Cp/PEG was 94.86 µg/mL, whereas for ZIF-8/Silica/GPt/PEG it was 60.19 µg/mL.

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“…in chemotherapy and chemoradiotherapy [108]. Considering the effective antioxidant property and anti-tyrosinase activity of PtNPs, developing these nanoparticles as anticancer agents can be one of the most valuable approaches for clinical use [109,110]. In order to improve therapeutic efficacy, functionalization of the surface of PtNPs could help to increase biodistribution, accumulation, cell-specific targeting, and controlled release, and reduce side effects to human beings.…”

Section: Platinum-based Nanoparticlesmentioning

confidence: 99%

Recent Metal Nanotheranostics for Cancer Diagnosis and Therapy: A Review

2023

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In recent years, there has been an increasing interest in using nanoparticles in the medical sciences. Today, metal nanoparticles have many applications in medicine for tumor visualization, drug delivery, and early diagnosis, with different modalities such as X-ray imaging, computed tomography (CT), magnetic resonance imaging (MRI), positron emission tomography (PET), etc., and treatment with radiation. This paper reviews recent findings of recent metal nanotheranostics in medical imaging and therapy. The study offers some critical insights into using different types of metal nanoparticles in medicine for cancer detection and treatment purposes. The data of this review study were gathered from multiple scientific citation websites such as Google Scholar, PubMed, Scopus, and Web of Science up through the end of January 2023. In the literature, many metal nanoparticles are used for medical applications. However, due to their high abundance, low price, and high performance for visualization and treatment, nanoparticles such as gold, bismuth, tungsten, tantalum, ytterbium, gadolinium, silver, iron, platinum, and lead have been investigated in this review study. This paper has highlighted the importance of gold, gadolinium, and iron-based metal nanoparticles in different forms for tumor visualization and treatment in medical applications due to their ease of functionalization, low toxicity, and superior biocompatibility.

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Green synthesis of platinum nanoparticles by Nymphaea tetragona flower extract and their skin lightening, antiaging effects

Cited by 14 publications

References 40 publications

Recent Advancements in the Formulation of Nanomaterials-Based Nanozymes, Their Catalytic Activity, and Biomedical Applications

Recent Advancements in the Formulation of Nanomaterials-Based Nanozymes, Their Catalytic Activity, and Biomedical Applications

Zeolitic Imidazole Framework/Silica Nanocomposite for Targeted Cancer Therapeutics: Comparative Study of Chemo-Drug Cisplatin (CPt) and Green Platinum (GPt) Efficacy

Recent Metal Nanotheranostics for Cancer Diagnosis and Therapy: A Review

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