Results 91 to 100 of about 7,150 (250)

Clinical disorders affecting mesopic vision

, 2006
Vision in the mesopic range is affected by a number of inherited and acquired clinical disorders. We review these conditions and summarize the historical background, describing the clinical characteristics alongside the genetic basis and molecular ...
Gordon T. Plant, Plant, GT, Petzold, A, Axel Petzold   +3 more
core   +1 more source

Polymer‐Redox Interactions Enhance Ferro/Ferricyanide Thermogalvanic Cells

Advanced Functional Materials, EarlyView.
Polyelectrolyte could modify the hydration structure of the redox couple in solution and improve the output performance of thermogalvanic cells, providing new fundamental insight into how electrostatic interactions can be exploited to tailor thermoelectric properties.
Pedro Santos Candiotto de Oliveira, Ziyauddin Khan, Swathi Suneesh, Sarbani Ghosh, Zia Ullah Khan, Reverant Crispin, Dan Zhao   +6 more
wiley   +1 more source

Phylogenetic analysis and ontogenetic changes in the cone opsins of the western mosquitofish (Gambusia affinis).

PLoS ONE, 2020
To convert external light into internal neural signal, vertebrates rely on a special group of proteins, the visual opsins. Four of the five types of visual opsins-short-wavelength sensitive 1 (Sws1), short-wavelength sensitive 2 (Sws2), medium-wavelength
Chia-Hao Chang, Yu-Chun Wang, Yi Ta Shao, Shih-Hui Liu   +3 more
doaj   +1 more source

Aqueous Two‐Phase Bioinks for Discrete Packing and Compartmentalization of 3D Bioprinted Cells

Advanced Healthcare Materials, EarlyView.
Aqueous two‐phase systems (ATPS) enable the formation of biomimetic interfaces crucial for tissue engineering. However, clinical translation remains limited by the challenge of precisely controlling cellular compartmentalization. Here, we developed ATPS biomaterial inks for 3D bioprinting allowing tuneable droplet formation via NaCl modulation.
Martina Marcotulli, Arianna Iacomino, Federico Serpe, Lucia Iafrate, Marco Bastioli, Giorgia Montalbano, Michele D'Orazio, Biagio Palmisano, Silvia Franco, Arianna Mencattini, Roberta Angelini, Eugenio Martinelli, Alessandro Corsi, Mara Riminucci, Giancarlo Ruocco, Chiara Scognamiglio, Andrea Barbetta, Gianluca Cidonio   +17 more
wiley   +1 more source

Lack of strong evidence for cone photoreceptors’ contribution to human melatonin suppression and alerting response to light

iScience
Summary: Light exposure at night can suppress melatonin production and increase alertness, primarily through the action of melanopsin-containing intrinsically photosensitive retinal ganglion cells (ipRGCs).
Fatemeh Fazlali, Rafael Lazar, Faady Yahya, Christian Epple, Manuel Spitschan, Oliver Stefani, Christian Cajochen   +6 more
doaj   +1 more source

Rod–cone interactions and the temporal impulse response of the cone pathway

, 2008
Dark-adapted rods suppress cone-mediated flicker detection. This study evaluates the effect that rod activity has on cone temporal processing by investigating whether rod mediated suppression changes the cone pathway impulse response function, regardless
Cao, Dingcai, Zele, Andrew J., Pokorny, Joel   +2 more
core   +1 more source

Relationship Between Foveal Cone Structure and Clinical Measures of Visual Function in Patients With Inherited Retinal DegenerationsFoveal Cone Structure and Visual Function [PDF]

, 2013
PURPOSE: To study the relationship between cone spacing and density and clinical measures of visual function near the fovea. METHODS: High-resolution images of the photoreceptor mosaic were obtained with adaptive optics scanning laser ophthalmoscopy from
Carroll, Joseph, Roorda, Austin, Duncan, Jacque L, Porco, Travis C, Ratnam, Kavitha   +4 more
core   +1 more source

Packed for Ossification: High‐Density Bioprinting of hPDC Spheroids in HAMA Toward Endochondral Ossification

Advanced Healthcare Materials, EarlyView.
Human periosteum‐derived cell spheroids bioprinted at high density within a hyaluronic acid matrix promote fusion and hypertrophic cartilage formation in vitro. Early encapsulation enhances spheroid interaction and matrix maturation, generating scalable cartilage templates intended for endochondral bone regeneration.
Ane Albillos Sanchez, Maria Paula Marks, Paula Casademunt, Adrián Seijas‐Gamardo, Ioannis Papantoniou, Lorenzo Moroni, Carlos Mota   +6 more
wiley   +1 more source

Physiological basis of resolution acuity in vision

Nature Communications
Vision is the primary sensory modality for many animals, especially humans and other primates. A fundamental constraint on visual resolution acuity is set by the size and spacing of cone photoreceptors, notably in the fovea of the retina where cones are ...
Keaton M. Ramsey, Philipp Tellers, Alexander Meadway, Pavan Tiruveedhula, Austin Roorda, Lawrence C. Sincich   +5 more
doaj   +1 more source

Human foveal cone photoreceptor topography and its dependence on eye length

eLife, 2019
We provide the first measures of foveal cone density as a function of axial length in living eyes and discuss the physical and visual implications of our findings.
Yiyi Wang, Nicolas Bensaid, Pavan Tiruveedhula, Jianqiang Ma, Sowmya Ravikumar, Austin Roorda   +5 more
doaj   +1 more source