Results 51 to 60 of about 14,642 (226)

Corneal Collagen Cross-linking

open access: yesAsia-Pacific Journal of Ophthalmology, 2015
Corneal collagen cross-linking (CXL) has been shown to slow down or stop the progression of keratoconus. In addition, CXL has been applied in cases of corneal ectasia. Recent reports of the use of CXL in cases of infectious keratitis have generated further interest in this treatment modality.
Kunyong, Xu   +3 more
openaire   +2 more sources

N, S Co‐Doped Carbon Quantum Dots‐Riboflavin Composite Photosensitizers for Enhanced Iontophoresis‐Assisted Corneal Cross‐Linking

open access: yesAdvanced Science, EarlyView.
This study explores the use of N, S co‐doped carbon quantum dots (NS‐CQDs) as carriers for riboflavin, creating NS‐CQDs‐RF composite photosensitizers. These composites improve riboflavin absorption, enhance ROS generation efficiency, and preserve corneal epithelium integrity.
Tinghong Xu   +9 more
wiley   +1 more source

A Nanoparticle‐Integrated Complete Manufacturing Pipeline of Chemically Engineered Exosomes

open access: yesAdvanced Science, EarlyView.
We report a novel manufacture technology of chemically engineered exosomes. The four steps of manufacturing, i.e., biogenesis, loading, isolation, and storage, are integrated by the use of a nanoparticle. The manufacture technology incorporates three innovative components, i.e., a new nano‐bio effect, a new composite nanoparticle, and a new isolation ...
Xiaowei Wen   +13 more
wiley   +1 more source

Stability of cross-linked collagen [PDF]

open access: yes, 2010
Teoretická část této bakalářské práce pojednává o obecných vlastnostech kolagenu, který je nejčastěji rozšířeným vláknitým proteinem v těle, o síťování kolagenu, které vede ke zlepšení mechanických i chemických vlastností, a o široce využívaných ...
Součková, Gabriela
core  

A Circuit of Mechanically Regulated Transcription Factors Balances Regenerative and Fibrotic Memory of Mesenchymal Stromal Cells

open access: yesAdvanced Science, EarlyView.
Producing MSCs on rigid culture substrates induces a scar‐making phenotype, jeapordizing therapeutic success. ‘Tissue‐soft’ surfaces prevent MSC fibrogenesis and preserve regenerative traits. An epigenetic network, driven by HOXA11 and SALL1, maintains ‘soft memory’ by keeping chromatin open in relaxed MSCs, promoting anti‐fibrotic programs.
Fereshteh Sadat Younesi   +7 more
wiley   +1 more source

Accelerated versus conventional corneal collagen cross-linking in the treatment of mild keratoconus: a comparative study

open access: yesClinical Ophthalmology, 2014
Ahmed Mohamed SherifFaculty of Medicine, Cairo University, EgyptAim: To evaluate the use of accelerated corneal collagen cross-linking in the management of mild and moderate progressive keratoconus in comparison with conventional cross-linking.Patients ...
Sherif AM
doaj  

Material properties from air puff corneal deformation by numerical simulations on model corneas [PDF]

open access: yes, 2016
19 págs.; 11 figs.; 2 tabs.Objective To validate a new method for reconstructing corneal biomechanical properties from air puff corneal deformation images using hydrogel polymer model corneas and porcine corneas.
Bekesi, Nandor   +3 more
core   +7 more sources

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

open access: yesAdvanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang   +6 more
wiley   +1 more source

Corneal endothelial changes evaluation using specular microscope following collagen cross-linking in treatment of keratoconus

open access: yesDelta Journal of Ophthalmology, 2020
Objective The aim of this study was to evaluate the corneal endothelial changes following corneal collagen cross-linking treatment of keratoconus using a specular microscope. Patients and methods The study included 30 eyes of 30 patients with keratoconus,
Akram F Elgazzar, Reem S Eid, Mona M Aly
doaj   +1 more source

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