Results 41 to 50 of about 2,975 (190)

Transient absorption spectroscopy on spiropyran monolayers using nanosecond pump–probe Brewster angle reflectometry [PDF]

open access: yes, 2013
Self-assembled monolayers of 11-(3’,3’-dimethyl-6,8-dinitrospiro[chromene-2,2’-indoline]-1’-yl) undecanoic acid (amphiphilic spiropyran) at the air–water interface are studied using Brewster angle reflectometry.
Aarts   +40 more
core   +1 more source

Photo-controlled permeation of spiropyran modified gramicidin A ion channel [PDF]

open access: yes, 2006
Thesis (M.S.) University of Alaska Fairbanks, 2006Biomimetic devices show great potential as being molecular sensors of biological species. Gramicidin A (gA) is a well studied ionophore that can be easily modified at the C-terminus to be incorporated ...
Cushing, Gregory W.
core  

Investigating nano-structured domains within ionic liquids: the effect of cation change on thermal equilibrium and relaxation of spiropyran and spirooxazine. [PDF]

open access: yes, 2009
The established belief that ionic liquids (ILs) behave as homogenous solvents such as that observed in molecular solvents has been challenged.1, 2 Previous use of solvatochromic probe dyes has allowed for the traditional parameter of ‘polarity’ to be ...
Byrne, Robert   +2 more
core  

Fiber-optic chemical sensing with Langmuir-Blodgett overlay waveguides [PDF]

open access: yes, 1999
Fiber-optic chemical sensing has been demonstrated with a side-polished single- mode optical fiber, evanescently coupled to chemically sensitive Langmuir- Blodgett (LB) overlay waveguides.
Ashwell, Geoffrey J.   +3 more
core   +1 more source

Fluorescent Dyes for Probing Intracellular and Subcellular Polarity

open access: yesChemistry–Methods, Volume 6, Issue 1, January 2026.
Fluorescent probes are crucial tools for measuring cellular microenvironment polarity, a parameter that influences physiological organelle function and diseases such as cancer. This text details the probes' physicochemical principles, intracellular targeting strategies, and key photophysical parameters for polarity estimation.
M. Carmen Gonzalez‐Garcia   +4 more
wiley   +1 more source

Current, emerging and future technologies for sensing the environment [PDF]

open access: yes, 2009
This paper reviews current technologies that are used for environmental monitoring, and presents emerging technologies that will dramatically improve our ability to obtain spatially distributed, real-time data about key indicators of environmental ...
Diamond, Dermot
core  

Thermal reversion of spirooxazine in ionic liquids containing the [NTf2]- anion [PDF]

open access: yes, 2009
We have compared the rate of thermal reversion of Spirooxazine (SO) from its merocyanine (MC) form within ionic liquids and molecular solvents. Et(30) and Kamlet-Taft parameter studies indicate ILs are comparable to polar protic and aprotic solvents. The
Angelini   +40 more
core   +1 more source

Design, Mechanisms, and Applications of DNA‐Mediated Dynamically Reconfigurable Plasmonic Gold Nanostructures

open access: yesSmall Methods, Volume 10, Issue 2, 22 January 2026.
This review provides key principles of designing and synthesizing reconfigurable plasmonic gold nanostructures for generating and controlling physical, chemical, and biological properties and functions. The recent advances in the biological and materials applications of dynamically reconfigurable plasmonic gold nanostructures are also summarized ...
So Young Choi   +6 more
wiley   +1 more source

Transient Brewster angle reflectometry of spiropyran monolayers [PDF]

open access: yes, 2010
Brewster angle reflectometry has been developed as a tool for determining the absorbance and refractive index changes in molecular monolayers containing spiropyran. The method is sensitive to changes in both the real and imaginary parts of the refractive
Aarts   +42 more
core   +1 more source

Exploring Isophorone‐Based Dienones: Comprehensive Insights Into Their Synthesis, Reactivity, and Diverse Applications

open access: yesJournal of Chemistry, Volume 2026, Issue 1, 2026.
Isophorone is an important motif in synthetic organic chemistry, as it is highly reactive and can get involved in a diverse array of functional group transformations to access various synthetic intermediates and molecular targets. In this context, an important group of compounds is the conjugated or nonconjugated isophorone‐cored dienones, which are ...
M. Saeed Abaee   +2 more
wiley   +1 more source

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