Results 71 to 80 of about 31,207 (301)

Hierarchically Engineered Multi‐Enzyme Nanoreactors for in vitro Drug Biosynthesis and Pathway Transplantation Into Cells

open access: yesAdvanced Materials, EarlyView.
A hierarchically structured metal–organic framework (eMIL) is shown to host the complete six‐enzyme biosynthesis pathway for the anti‐cancer pigment violacein, reshaping reaction dynamics and multiplying in vitro yields. eMIL nanoreactors deliver this reconstituted bacterial multi‐protein system into mammalian cells, where cell‐derived substrates and ...
Ainur Sharip   +12 more
wiley   +1 more source

In vivo human crystalline lens topography

open access: yes, 2013
Custom high-resolution high-speed anterior segment spectral domain optical coherence tomography (OCT) was used to characterize three-dimensionally (3-D) the human crystalline lens in vivo.
Gambra, Enrique   +4 more
core   +1 more source

Self‐Seeded Nucleation of PET in a Benign Solvent Yields a High Modulus Aerogel With Ultra‐Low Thermal Conductivity

open access: yesAdvanced Materials, EarlyView.
A new benign solvent (1,3‐diphenylacetone) enables a simple, safe, and sustainable dissolution and gelation method to convert waste PET into low density, monolithic aerogels with high mechanical strength (E = 20 MPa) and remarkably low thermal conductivity (k = 21.9 to 28.9 mW/m·K).
Kira R. Baugh   +9 more
wiley   +1 more source

Prescripción de lente de contacto en niños de Las Tunas

open access: yesRevista Electrónica Dr. Zoilo E. Marinello Vidaurreta, 2016
Fundamento:el empleo de lentes de contacto se ha incrementado a nivel mundial; en la actualidad su uso no se restringe solamente a la corrección óptica, sino que se utilizan con fines terapéuticos, ya que generan comodidad y estética en múltiples ...
Yusimy Agüero Viamontes   +2 more
doaj  

Influence of zonular tension on molecular transport in the porcine ocular lens

open access: yesFrontiers in Ophthalmology
IntroductionAccommodation is the process of changing the ocular lens’ refractive power and focal distance. This process involves application of biomechanical forces on the lens by the surrounding musculature.
Morgan Crews   +3 more
doaj   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

open access: yesAdvanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source

THE AUTOLYSIS OF THE CRYSTALLINE LENS [PDF]

open access: yesJournal of the American Medical Association, 1911
In the study of traumatic cataract and the needling operation, I was struck with the very scant description of the manner in which the lens becomes opaque and the causes for its opacity and final absorption. Parsons 1 states that after exposure of the lens fibers to the action of the aqueous they swell up, become opaque, protrude through the capsular ...
openaire   +1 more source

DEVELOPMENTAL DEFORMITIES OF THE CRYSTALLINE LENS. [PDF]

open access: yesJournal of the American Medical Association, 1908
In the observation brought forward in this paper I propose to show how several forms of congenital cataract are the outcome of arrests of development in the lens at different stages in its formation. I am, naturally, aware that to attribute a condition to an arrest of development offers only a partial explanation of its etiology, leaving the cause of ...
openaire   +1 more source

A medieval fallacy: the crystalline lens in the center of the eye

open access: yes, 2016
Christopher T Leffler,1 Tamer M Hadi,2 Akrithi Udupa,1 Stephen G Schwartz,3 Daniel Schwartz1 1Department of Ophthalmology, Virginia Commonwealth University, Richmond, VA, 2Graduate School of Medicine, University of Tennessee Medical Center, Knoxville ...
Hadi TM   +4 more
core  

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