Results 51 to 60 of about 73,477 (262)

Engineered MEVs for photoreceptor-targeted delivery of USP25 to alleviate diabetic retinopathy

Journal of Nanobiotechnology
Diabetic retinopathy (DR) is the major cause of vision decline in adults worldwide. Photoreceptor loss is considered a main pathogenesis of retinal dysfunction in DR.
Yaoxiang Sun, Shenyuan Chen, Xiaoyuan Qi, Yuntong Sun, Zhengmei Jiang, Jie Chang, Yongjun Ma, Jin Huang, Benshuai You, Fengtian Sun   +9 more
doaj   +1 more source

Elementary and macroscopic light-induced currents and their Ca2+-dependence in the photoreceptors of Periplaneta americana

Frontiers in Physiology, 2014
In a microvillar photoreceptor, absorption of an incident photon initiates a phototransduction reaction that generates a depolarizing light-induced current in the microvillus.
Esa-Ville eImmonen, Stephan eKrause, Yani eKrause, Roman eFrolov, Mikko T Vähäsöyrinki, Matti eWeckstrom   +5 more
doaj   +1 more source

Co-Injection of Sulfotyrosine Facilitates Retinal Uptake of Hyaluronic Acid Nanospheres Following Intravitreal Injection

Pharmaceutics, 2021
Gene and drug delivery to the retina is a critical therapeutic goal. While the majority of inherited forms of retinal degeneration affect the outer retina, specifically the photoreceptors and retinal pigment epithelium, effective targeted delivery to ...
Aiden Eblimit, Mustafa S. Makia, Daniel Strayve, Ryan Crane, Shannon M. Conley, Tirthankar Sinha, Ghanashyam Acharya, Muayyad R. Al-Ubaidi, Muna I. Naash   +8 more
doaj   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Electrically Coded Retinomorphic Spectrophotodetector

Advanced Materials, EarlyView.
Self‐powered retinomorphic pyro‐photodetector is demonstrated that avoids machine‐learning post‐processing and covers 365–940 nm. Electrostatic balancing of built‐in potential produces an electrical wavelength code, delivering <3 nm wavelength decoding accuracy with ∼46 µs response.
Mohit Kumar, Hyunmin Dang, Hyungtak Seo
wiley   +1 more source

Novel Porcine Retina Cultivation Techniques Provide Improved Photoreceptor Preservation

Frontiers in Neuroscience, 2020
Age-related macular degeneration (AMD) is the leading cause of blindness in industrialized countries among people over 60 years. It has multiple triggers and risk factors, but despite intense research efforts, its pathomechanisms are currently not ...
Natalie Wagner, Sabrina Reinehr, Maurice R. Gammel, Andrea Greulich, José Hurst, H. Burkhard Dick, Sven Schnichels, Stephanie C. Joachim   +7 more
doaj   +1 more source

Photomorphogenesis and Photoreceptors

, 2016
Plants use light as their main source of energy and to gather information about their surroundings. The light environment is monitored through an extensive set of photoreceptors and largely dictates plant development through induction of processes such as germination and flowering, entrainment of the circadian clock and photomorphogenic responses ...
de Wit, M., Pierik, R.
openaire   +4 more sources

Spatial Control of Light‐Responsive Proteins and Optogenetics Within Hydrogels via Volumetric Bioprinting

Advanced Materials, EarlyView.
Spatiotemporal control over cell behavior within bioprinted constructs remains a key challenge in biofabrication. Volumetric bioprinting using multi‐wavelength light sources permits to activate light‐sensitive intracellular proteins as well as optogenetic gene and protein expression circuits in bioprinted cells, in addition to enabling fast printing of
Davide Ribezzi, Pere Català, Gabriel Größbacher, Paulina Nuñez Bernal, Olaf Nijssen, Sammy Florczak, Wilco Nijenhuis, Nuria Crusellas‐Villorbina, Bram Nijhoff, Paul Delrot, Jos Malda, Andreas Hierholzer, Martin Fussenegger, Lukas C. Kapitein, Riccardo Levato   +14 more
wiley   +1 more source

Photoreceptor disruption in central serous chorioretinopathy treated by half-dose photodynamic therapy

Clinical Ophthalmology, 2013
Mansing Ratanasukon, Koblarp Thongthong, Patama Bhurayanontachai, Pichai JirarattanasopaDepartment of Ophthalmology, Faculty of Medicine, Prince of Songkla University, Hat yai, Songkhla Province, ThailandBackground: To evaluate photoreceptor disruption ...
Ratanasukon M, Thongthong K, Bhurayanontachai P, Jirarattanasopa P   +3 more
doaj  

Evolution of Photoreceptors

Cold Spring Harbor Symposia on Quantitative Biology, 1965
This essay will endeavor to demonstrate the relevance to photoreceptors of the Darwinian dictum: descent with modification. Considering the critical importance of radiant energy for almost all living organisms, it may be assumed that organelles adapted for activation by photons arose very early, perhaps not long after the evolution of the cell itself ...
openaire   +2 more sources