Fast fourier transform IR characterization of epoxy GY systems crosslinked with aliphatic and cycloaliphatic EH polyamine adducts

G Nikolic, S Zlatkovic, M Cakic, S Cakic, C Lacnjevac… - Sensors, 2010 - mdpi.com
The use of fast FT-IR spectroscopy as a sensitive method to estimate a change of the
crosslinking kinetics of epoxy resin with polyamine adducts is described in this study. A new …

Optical fiber tips for biological applications: from light confinement, biosensing to bioparticles manipulation

JS Paiva, PAS Jorge, CC Rosa, JPS Cunha - Biochimica et Biophysica Acta …, 2018 - Elsevier
Background The tip of an optical fiber has been considered an attractive platform in Biology.
The simple cleaved end of an optical fiber can be machined, patterned and/or …

Polymer–nanoparticle interfacial interactions in polymer nanocomposites: confinement effects on glass transition temperature and suppression of physical aging

P Rittigstein, JM Torkelson - Journal of Polymer Science Part B …, 2006 - Wiley Online Library
The effects of confinement on glass transition temperature (Tg) and physical aging are
measured in polystyrene (PS), poly (methyl methacrylate)(PMMA), and poly (2‐vinyl …

Phase separation kinetics in amorphous solid dispersions upon exposure to water

HS Purohit, LS Taylor - Molecular pharmaceutics, 2015 - ACS Publications
The purpose of this study was to develop a novel fluorescence technique employing
environment-sensitive fluorescent probes to study phase separation kinetics in hydrated …

Flapping viscosity probe that shows polarity-independent ratiometric fluorescence

R Kotani, H Sotome, H Okajima, S Yokoyama… - Journal of Materials …, 2017 - pubs.rsc.org
A variety of fluorescent molecular viscosity probes have been widely used for mapping the
local viscosity in cells and for monitoring the microenvironments in materials. However, their …

New iodonium salts in NIR sensitized radical photopolymerization of multifunctional monomers

T Brömme, D Oprych, J Horst, PS Pinto, B Strehmel - RSC advances, 2015 - pubs.rsc.org
Reactivity of new iodonium salts [AIB]+ X− was studied with near infrared (NIR) initiated
radical polymerization by photo-DSC using the polymethine dye S1 (5-(6-(2-(3-ethyl-1, 1 …

Fluorescent probes for sensing processes in polymers

P Bosch, F Catalina, T Corrales… - Chemistry–A European …, 2005 - Wiley Online Library
Fluorescence spectroscopy is an important analytical technique that has been widely used
in a variety of applications, such as biomedicine, biology, and science of materials, because …

Dynamic polymer free volume monitored by single-molecule spectroscopy of a dual fluorescent flapping dopant

Y Goto, S Omagari, R Sato, T Yamakado… - Journal of the …, 2021 - ACS Publications
Single-molecule spectroscopy (SMS) of a dual fluorescent flapping molecular probe (N-
FLAP) enabled real-time nanoscale monitoring of local free volume dynamics in …

Insights into nano-and micron-scale phase separation in amorphous solid dispersions using fluorescence-based techniques in combination with solid state nuclear …

HS Purohit, JD Ormes, S Saboo, Y Su, MS Lamm… - Pharmaceutical …, 2017 - Springer
Purpose Miscibility between the drug and the polymer in an amorphous solid dispersion
(ASD) is considered to be one of the most important factors impacting the solid state stability …

Miscibility of itraconazole–hydroxypropyl methylcellulose blends: Insights with high resolution analytical methodologies

HS Purohit, LS Taylor - Molecular pharmaceutics, 2015 - ACS Publications
Drug–polymer miscibility is considered to be a prerequisite to achieve an optimally
performing amorphous solid dispersion (ASD). Unfortunately, it can be challenging to …