Recent updates on drug delivery approaches for improved ocular delivery with an insight into nanostructured drug delivery carriers for anterior and posterior segment disorders DOI
Samiullah Khan, Chi Wai, Emmanuel A. Ho

et al.

Drug Delivery and Translational Research, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 14, 2024

Language: Английский

The emerging role of nanozymes in ocular antioxidant therapy DOI
Xue Bai,

Yu Lu,

Shuyu Wang

et al.

Nano Today, Journal Year: 2024, Volume and Issue: 58, P. 102448 - 102448

Published: Aug. 23, 2024

Language: Английский

Citations

2

Platinum Nanozyme Probes for Cellular Imaging by Electron Microscopy DOI Creative Commons
Elisa De Luca, Deborah Pedone, Anna Scarsi

et al.

Small Science, Journal Year: 2024, Volume and Issue: unknown

Published: June 9, 2024

The highly efficient peroxidase‐like activity of platinum nanozymes (3–20 nm size) is exploited within the complex cellular environment to catalyze oxidation DAB substrate, producing an electron‐dense signal around nanozyme surface, upon osmium staining. It proved that such amplification can achieve a catalytic enhancement up 10‐fold, enabling quick detection Pt particles (even 3 by transmission electron microscopy (TEM) also at low magnification and across wide fields view in intricate intracellular milieu. developed procedure ideally suited overcome standard strategies currently used TEM analysis, as gold or silver enhancements. Furthermore, versatility Pt‐nanozyme probes imaging demonstrated immuno‐EM protein trafficking studies, showing their potential track subcellular localization target biomolecules both high magnifications. These results suggest use might represent paradigm shift conventional systems employed for analyses, offering enhanced capabilities.

Language: Английский

Citations

1

The Role of Reactive Oxygen Species in Age-Related Macular Degeneration: A Comprehensive Review of Antioxidant Therapies DOI Creative Commons
Merve Kulbay, Kevin Y. Wu, Gurleen K. Nirwal

et al.

Biomedicines, Journal Year: 2024, Volume and Issue: 12(7), P. 1579 - 1579

Published: July 16, 2024

This review article delves into the intricate roles of reactive oxygen species (ROS) in pathogenesis age-related macular degeneration (AMD). It presents a detailed analysis oxidative stress mechanisms that contribute to development and progression these diseases. The systematically explores dual nature ROS ocular physiology pathology, underscoring their essential cellular signaling detrimental effects when excess. In context AMD, focus is on impairment retinal pigment epithelium Bruch's membrane, culminating deterioration health. Central this evaluation various antioxidant strategies prevention management AMD. encompasses wide spectrum antioxidants, ranging from dietary nutrients like vitamins C E, lutein, zeaxanthin pharmacological agents with antioxidative properties. also addresses novel therapeutic approaches, including gene therapy nanotechnology-based delivery systems, aiming enhance defense tissues. concludes by synthesizing current research findings, clinical trial data, meta-analyses provide evidence-based recommendations. underscores need for further optimize therapies, considering individual patient factors disease stages. comprehensive thus serves as valuable resource clinicians, researchers, healthcare professionals ophthalmology, offering insights potential antioxidants mitigating burden

Language: Английский

Citations

1

Strategic delivery of rapamycin and ranibizumab with intravitreal hydrogel depot disrupts multipathway-driven angiogenesis loop for boosted wAMD therapy DOI
Xi Jiang, Congyan Liu, Qun Zhang

et al.

Journal of Controlled Release, Journal Year: 2024, Volume and Issue: 377, P. 239 - 255

Published: Nov. 21, 2024

Language: Английский

Citations

1

Platinum nanozyme embedded in hyaluronate with multifunctional attributes synergistically promoting tracheal fistula healing DOI
Shao‐Bin He, Liyong Shi, Zhiqiang Yang

et al.

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 287, P. 138337 - 138337

Published: Dec. 5, 2024

Language: Английский

Citations

1

Liposome‐Based Permeable Eyedrops for Effective Posterior Segment Drug Delivery DOI

Ying Wang,

Yanhong Hu,

Jinying An

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 12, 2024

Abstract Topical eyedrop administration is identified as an ideal non‐invasive strategy for ocular drug delivery. However, multiple complex barriers greatly restrict their effectiveness in the treatment of posterior disease. Herein, a liposome‐based permeable eyedrops (pDrops) capable overcoming and achieving efficient delivery presented. pDrops have core‐shell structure which drugs are encapsulated inside liposome core with chitosan shell. This coating significantly enhances pDrops’ binding to mucin tears facilitates temporary opening tight junctions cornea/conjunctive epithelial cells, thereby prolonged preocular retention enhanced segment In this study, hydrophilic ganciclovir (GCV) hydrophobic curcumin (CUR) employed model drugs. Upon topical instillation, effectively overcome delivered GCV both rat rabbit eyes. Notably, CUR by demonstrates therapeutic efficacy light‐damaged retina mice. Considering that can deliver eye, it potentially become feasible platform various molecules improve efficiency diseases.

Language: Английский

Citations

0

Photoreceptor‐Mimetic Microflowers for Restoring Light Responses in Degenerative Retina through a 2D Nanopetal/Cell Biointerface DOI Creative Commons
Gerile Oudeng, Seema Banerjee, Qin Wang

et al.

Small, Journal Year: 2024, Volume and Issue: 20(43)

Published: June 26, 2024

Retinitis pigmentosa is the main cause of inherited human blindness and associated with dysfunctional photoreceptors (PRs). Compared traditional methods, optoelectronic stimulation can better preserve structural integrity genetic content retina. However, enhancing spatiotemporal accuracy challenging. Quantum dot-doped ZnIn

Language: Английский

Citations

0

Nanotechnology in retinal diseases: From disease diagnosis to therapeutic applications DOI

Geetika Kaur,

Shivantika Bisen, Nikhlesh K. Singh

et al.

Biophysics Reviews, Journal Year: 2024, Volume and Issue: 5(4)

Published: Nov. 5, 2024

Nanotechnology has demonstrated tremendous promise in the realm of ocular illnesses, with applications for disease detection and therapeutic interventions. The nanoscale features nanoparticles enable their precise interactions retinal tissues, allowing more efficient effective treatments. Because biological organs are compatible diverse nanomaterials, such as nanoparticles, nanowires, nanoscaffolds, hybrid nanostructures, usage biomedical applications, particularly increased. use nanotechnology medicine is advancing rapidly, recent advances nanomedicine-based diagnosis therapy techniques may provide considerable benefits addressing primary causes blindness related to illnesses. current state, prospects, challenges monitoring nanostructures or cells eye application regenerative ophthalmology have been discussed thoroughly reviewed. In this review, we build on our previously published review article 2021, where impact nano-biomaterials regeneration. However, extended focus incorporate discuss all diseases, a highlight diagnostic research studies.

Language: Английский

Citations

0

Unraveling the mechanism: How does β-phosphoglucomutase from the haloacid dehalogenase superfamily catalyze the interconversion of β-d-glucose 1-phosphate and β-d-glucose 6-phosphate? A chemical perspective DOI

Hao Zhang,

Mingming Zhang,

Kangning Zhu

et al.

Journal of Inorganic Biochemistry, Journal Year: 2024, Volume and Issue: 264, P. 112794 - 112794

Published: Dec. 4, 2024

Language: Английский

Citations

0

Screening Oxidoreductase Activities of Nanozymes: Toward Activity‐Tailored Guidelines DOI Creative Commons
Giulia Mirra, Lorenzo Cursi, Luca Boselli

et al.

Small Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 6, 2024

Nanozymes (NZs) are nanomaterials able to mimic natural enzymes, offering the advantages of better durability, wider range operational conditions, and easier functionalization. In addition, some NZs exhibit multiple enzyme‐like activities effective tandem/self‐cascade reactions. this context, metallic metal–oxide nanoparticles among most promising candidates for biomedical/biotechnological applications, thanks their efficient oxidoreductase activities. However, characterizing is challenging because experimental set‐up different assays strongly influence performances. Consequently, currently available literature provides limited understanding characteristics various NZs, especially in terms activity‐related performance, hindering optimal selection applicative potential. Here, leveraging on accurate characterization methodology, we report a direct comparison several (gold‐Au, platinum‐Pt, palladium‐Pd, ceria, iron oxide) possessing multi‐enzymatic Our main findings indicate that 1) PtNZs outperform other tested catalase‐like activity; 2) Pt PdNZs present superior superoxide dismutase‐like 3) peroxidase‐ oxidase‐like activity, best‐performing NZ substrate‐dependent; 4) competitive reactions multifunctional play key role specific AuNZs can be choice peroxidase/oxidase configurations; 5) more than metal‐oxide ones, but 6) ceria presents unique phosphatase‐like activity.

Language: Английский

Citations

0