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Combining nitric oxide and calcium sensing for the detection of endothelial dysfunction

Cardiovascular diseases are the leading cause of death worldwide and are not typically diagnosed until the disease has manifested. Endothelial dysfunction is an early, reversible precursor in the irreversible...

Understanding the Limits of the Bouguer-Beer-Lambert Law

The Bouguer-Beer-Lambert law is frequently applied in spectroscopy and spectrophotometry. Often it is assumed that it accurately describes the observed changes induced by light-matter interactions and...

Targeting the molecular information of the retina with Raman spectroscopy

A Silica Capillary-Based Sensor with Access Channels for the Simultaneous Measurement of Pressure and Temperature

A hybrid fiber sensor for the simultaneous measurement of pressure and temperature is proposed. The sensor is constituted of a section of silica capillary tube (SCT) whereat access channels are created...

A double-clad ytterbium-doped tapered fiber with circular birefringence as a gain medium for structured light

Amplifying radially and azimuthally polarized beams is a significant challenge due to the instability of the complex beam shape and polarization in inhomogeneous environment. In this Letter, we demonstrated...

Unlocking the Potential of Ketocoumarins: Efficient Photosensitizers for Sustainable Light Driven Hydrogen Evolution

In this study, we explore the untapped potential of ketocoumarins as photosensitizers for light driven hydrogen evolution. Through the synthesis of a library of novel ketocoumarins and optimization of...

Simulating a reference medium for determining bacterial growth in hospital wastewater for Raman spectroscopic investigation

Wastewater is a very complex and diverse medium, which despite low nutrient density still harbors bacteria. Especially the wastewater from hospitals contains a high germ load. However, wastewater is also...

Nanoscale chemical characterization of secondary protein structure of F-Actin using mid-infrared photoinduced force microscopy (PiF-IR)

The recently developed photoinduced force microscopy for mid-infrared (PiF-IR) offers high spectral resolution in combination with surface sensitivity and a spatial resolution in the range of a few nanometers....

Pore Nanoarchitectonics of Carbon Nitrides for the Excited-State Deactivation of Confined Methylene Blue

The confinement of organic chromophores within mesoporous material architectures can exert a considerable alteration on their physico-chemical properties. This study presents a detailed spectroscopic investigation...

Photobasic Transition-Metal Complexes

Transition-metal complexes, which exhibit photobasic properties, are highly promising for chemical applications where the proton abstraction represents one key step. Photobases feature an increased basicity...