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Optimisation of SERS for Glucose Sensing

Surfaced enhanced Raman scattering (SERS) is an enhancement technique in which nanoparticles are used to provide Raman intensity enhancement. In this application note the optimisation of gold nanoparticles are investigated for the development of a SERS glucose sensor.

Mapping Triplet-to-Singlet Förster-type Intramolecular Energy Transfer Utilising Transient Absorption and Fluorescence Spectroscopy

Featured in the prominent Science Advances journal, this exceptional research into intramolecular Förster-type triplet-to-singlet energy transfer in a donor-bridge-acceptor (DBA) dyad was led by Prof. Karl Börjesson at the University of Gothenburg and team of researchers across Sweden utilising Edinburgh Instruments FLS1000 and LP980 Spectrometers.

A Luminescent Europium Hairpin for DNA Photosensing in the Visible, based on Trimetallic Bis-Intercalators

Researchers from Birmingham University have developed a new complex for DNA sensing in collaboration with Edinburgh Instruments. Find out how our FLS1000 Spectrometer was used in this research.

Research Highlight: Bioorthogonal Photocatalytic Reactions of Flavins Converting PtIV Substrates into PtII Anticancer Drugs; Photoluminescence and Transient Absorption Data

The ideal anticancer drug would be one that is effective at killing rapidly producing cells, is targeted directly to the tumour location, and is non-toxic until it reaches the diseased area. Platinum-II (PtII) based chemotherapy drugs have been life changing for many, with the most common drug, Cisplatin, providing treatment and cures for cancerous diseases in the bladder, breast, cervix, lung, ovaries, and head and neck, to name a few.

Research Highlight: Illuminating Metal-Organic Framework (MOF) Photocatalytic Solar Fuel Mechanisms; Luminescence and Transient Absorption Spectroscopy

Understanding and optimising novel materials for the next generation of fuel sources for our energy needs that are efficient, affordable, and carbon neutral is of paramount importance for generations to come. Photocatalytic materials that can harvest sunlight and generate hydrogen gas (H2) from water is highly sought after given the enormous energy released and environmentally friendly by-product of water when burning this gas for energy. Find out more.

Application Note: Measuring Picosecond Fluorescence Lifetimes Using the FLS1000 Equipped with a Hybrid Photodetector

In this application note, the measurement of sub 20 picosecond lifetimes utilising the FLS1000 Photoluminescence Spectrometer equipped with a hybrid photodetector is demonstrated, and the impact that the configuration of the FLS1000 has on the minimum lifetime that can be measured is discussed.

Technical Note: LP980 Transient Absorption Spectrometer Beam Alignment - Optimising Signal for the Highest Sensitivity Measurements

In this technical note we explore Transient absorption (flash photolysis), which is a powerful tool to understand many photochemical properties and reactions, from measuring the energy levels and lifetimes of excited singlet and triplet states, to measuring electron and energy transfer rates of paired molecular systems, and even photocatalysis intermediates and products.

Measuring the Two-Photon Absorption Spectra of Organic Solutions Via Two-Photon Induced Fluorescence Spectroscopy

This customer written application note describes how to measure the two-photon absorption spectra of fluorescent chromophores by using an external short-pulsed laser source in an Edinburgh Instruments FS5 Spectrofluorometer. A procedure on how to calculate the nonlinear refraction dispersion from the measured spectra is also given.

Metal Organic Framework as a Ratiometric Fluorescence Sensor for Hypochlorite and Ascorbic Acid

Researchers in Fujian, China, led by Rong Cao and Zu-Jin Lin, have developed a new method for sensing ClO- employing fluorescence spectroscopy and novel metal organic frameworks. The authors used an Edinburgh Instruments FS5 Spectrofluorometer to characterize and optimise the sensor’s response towards ClO- . They then employed this sensor to detect ascorbic acid, an essential nutrient for the human body.

Research Highlight: Enhanced Solar Cell Performance with Pt-based ‘Roller-Wheel’ Molecules; Utilising Transient Absorption for Excited State Energies and Lifetimes

Engineering new materials with unique and valuable electronic and optical properties is paramount in the design of new devices from memory storage to creating the next generation of organic photovoltaic solar cells.