Results 121 to 130 of about 3,255,505 (313)

Cholesterol‐DNA Origami Nanostructures for Synthetic Lipid Rafts Induce Early T Cell Activation Signals

open access: yesAdvanced Materials Interfaces, EarlyView.
Here, we present a nanotechnology approach to construct synthetic lipid rafts on the live T cell membrane, leveraging a versatile DNA origami‐enabled platform named as the “cholesterol nano‐patch” (CNP). Our investigation highlights the effectiveness of DNA nanotechnology in exploring the impact of nanoscale arrangement of cholesterols on the ...
Yunmin Jung   +4 more
wiley   +1 more source

Environmental restoration and biological contamination: ecological and legal aspects [PDF]

open access: yesBiotemas, 2005
Environmental restoration is a pressing current need. However, protected areas have been exposed to biological contamination risks because the traditional techniques of restoration frequently use exotic species. This causes some concern, since biological
Ademir Reis   +3 more
doaj  

Stochastic and deterministic models for age-structured populations with genetically variable traits

open access: yes, 2009
Understanding how stochastic and non-linear deterministic processes interact is a major challenge in population dynamics theory. After a short review, we introduce a stochastic individual-centered particle model to describe the evolution in continuous ...
C. Besse   +5 more
core   +3 more sources

Light‐Controlled Exposure of Cancer Cells to Reactive Oxygen Species Using Organic Semiconductor Thin Films

open access: yesAdvanced Materials Interfaces, EarlyView.
Spin‐coated films of the conjugated polymer F8T2 (poly (9,9‐dioctylfluorene‐alt‐bithiophene)) generate superoxide at the film‐medium interface, enabling precise delivery of reactive oxygen species (ROS) as visible‐light “ROS patches.” Coated surfaces drive rapid, localised cytotoxicity in MCF7 cancer monolayers under white light, providing a reagent ...
Joe Kaye   +8 more
wiley   +1 more source

Comparative analyses of extinction risk in vertebrates

open access: yes, 2009
Measures of current extinction risk imply that a high proportion of the world’s species are threatened with global extinction in the near future, stressing the need for thorough understanding of extinction processes.
Fritz, Susanne, Fritz, Susanne
core   +1 more source

Label‐Free Sensing of Coronaviral Sequences via Kretschmann‐Configuration Reflectance Spectroscopic Ellipsometry: Sensitivity, Specificity, and Interfacial Effects

open access: yesAdvanced Materials Interfaces, EarlyView.
Spectroscopic ellipsometry in the Kretschmann‐Raether configuration (KRSE) is employed to characterize a DNA‐functionalized platform for viral sequence recognition. By merging SE with surface plasmon resonance, KRSE outperforms conventional SE, achieving nanomolar targeting through resonance wavelength shifts (δλ) measurements. Its enhanced interfacial
Silvia Maria Cristina Rotondi   +4 more
wiley   +1 more source

A Microfluidic Multiplex Sorter for Strain Development

open access: yesAdvanced Materials Technologies, Volume 10, Issue 6, March 18, 2025.
A new multiplex method for high‐throughput screening of yeast strains based on glucoamylase production is presented. Droplets containing single mutant yeast cells are incubated for enzyme production. A sorting platform divides mutants by their high‐ and mid‐activity levels.
Chiara Leal‐Alves   +6 more
wiley   +1 more source

Possible detection of atmospheric bioaerosol via LiDAR: a wavelength-based simulation study

open access: yesAsian Journal of Atmospheric Environment
This study explores potential of LiDAR technology to rapidly detect aerosolized biological terror agents in the atmosphere. It assesses the application by simulating extinction coefficients and the Ångström exponent at various wavelengths (266, 1064 ...
Juseon Shin, Youngmin Noh
doaj   +1 more source

Determining species expansion and extinction possibilities using probabilistic and graphical models

open access: yesEkológia (Bratislava), 2015
Survival of plant species is governed by a number of functions. The participation of each function in species survival and the impact of the contrary behaviour of the species vary from function to function. The probability of extinction of species varies
Chaturvedi Rajesh   +1 more
doaj   +1 more source

Advances in Safe, Flexible, and Stretchable Batteries for Wearable Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Unlike previous reviews centered on component‐based deformability, this work highlights safety‐driven design strategies for flexible and stretchable batteries. By integrating material‐level engineering, geometry‐controlled structures, biocompatibility, and self‐protection mechanisms, it establishes a unified framework that connects mechanical ...
Hyewon Kang   +4 more
wiley   +1 more source

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