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News

29/05/2024

Check out our latest research in Journal of Materials Chemistry B. A colaboration with P. Cornejo and M. Rafii-El-Idrissi on how MOFs can help eradicate HIV reservoirs in infected patients.

Biocompatible metal–organic frameworks as promising platforms to eradicate HIV reservoirs ex vivo in people living with HIV



23/03/2023

New paper just published in Chemical Physics Letters, where the mechanical and morphological effects of monolayers of octadecylamine upon aspirin adsorption are monitored by Langmuir isotherms measurements and Brewster angle microscopy.

Interaction between acetylsalicylic acid and a cationic amphiphile model: An experimental approach using surface techniques


02/02/2023

Check out our last paper in Materials Today Chemistry where we enhance the fluorescence of ZIF-8 by simple cation exchange with Cd2+ and integrate it into sensing films to detect S2- optically.

Enhancement of the intrinsic fluorescence of ZIF-8 via post-synthetic cation exchange with Cd2+ and its incorporation into PDMS films for selective sulfide optical sensing


27/01/2023

Our latest work on gas sensing, featuring a low-cost and portable prototype for color measuring:

Colorimetric Gas Detection Using Molecular Devices and an RGB Sensor

New advances in gas detection and color measurement: we built a low-cost and portable color measuring device based on an RGB color sensor interfaced to a Raspberry Pi that can provide similar results to laboratory spectrophotometers in color measuring applications. We used it to monitor the color of two already-tested colorimetric molecular devices: Harrison's reagent supported on porous TiO2 films for the detection of phosgene, and mixed films of a porphyrinic metal-organic frameworks and polydimethylsiloxane for the detection of biogenic amines. The results showed that the prototype could accurately monitor the color change of the sensing devices when exposed to the analytes and that its versatility allowed for the measurement of samples with different characteristics.



07/01/2023

Another interesting application of a carboxylated pyrrolidine-fused chlorin:

Selective Determination of Glutathione Using a Highly Emissive Fluorescent Probe Based on a Pyrrolidine-Fused Chlorin

A carboxylated pyrrolidine-fused chlorin (TCPC) is used as a fluorescent probe for the determination of glutathione in 7.4 pH phosphate buffer. TCPC is a very stable, highly emissive molecule that has been easily obtained from meso-tetrakis(4-methoxycarbonylphenyl) porphyrin. We first coordinated TCPC with Hg(II) ions to obtain the TCPC-Hg2+ complex, which exhibits a significant fluorescence turn-on in the presence of low concentrations of glutathione.




24/12/2022

Pleased to see that our recent work on a chlorin modified UIO-66 (Hf) MOF for NO2 detection has been selected for the front cover of Chemosensors.

Cover Story: Nitrogen dioxide (NO2) is the most toxic and prevalent form of air pollutant of the NOx family; thus, the detection of this gas is significant in preventing environmental and human health problems. A new porous material obtained via the modification of a robust metal-organic framework (MOF), UiO-66(Hf), with a very small amount of meso-tetrakis(4-carboxyphenyl) N-methylpyrrolidine-fused chlorin (TCPC)—TCPC@MOF—revealed notable potential for NO2 sensing. The modified MOF-based material brings together the chemical stability of UiO-66(Hf) and the photophysical properties of the pyrrolidine-fused chlorin. Interestingly, this also represents a rare example of a chlorin derivative utilized for gas-sensing applications through emission changes. Read the paper here




01/12/2022

Our latest work on MOFs and NO2 detection, just published in Chemosensors:

MOF-Based Materials with Sensing Potential: Pyrrolidine-Fused Chlorin at UiO-66(Hf) for Enhanced NO2 Detection

An efficient strategy to develop porous materials with potential for NO2 sensing was based on the preparation of a metal-organic framework, UiO-66(Hf), modified with a very small amount of meso-tetrakis(4-carboxyphenyl) N-methylpyrrolidine-fused chlorin (TCPC). The resulting TCPC@MOF, incorporated into polydimethylsiloxane (PDMS) was tested for NO2 gas sensing, showing notable sensitivity and a fast response in the range between 0.5 and 500 ppm where an emission intensity quenching is observed up to 96% for 500 ppm.




30/09/2022

Our recent work on 2-Dimensional rare earth MOFs for VOCs detection has been selected for the front cover of Inorganic Chemistry Frontiers


Read the article here: 2-Dimensional Rare Earth Metal-Organic Frameworks based on a hexanuclear secondary building unit as efficient detectors for vapours of nitroaromatics and volatile organic compounds


13/09/2022

New paper just accepted in IEEE Sensors Journal:

Characterization of spun PMMA / UiO-66-NH2@PMMA Thin Films and their SPR sensing response to haloalkane vapors. https://ieeexplore.ieee.org/document/9857778

Spin-coating deposition of metal-organic framework crystals onto gold substrates is improved by using a poly(methyl methacrylate) matrix. The gas-sensing properties of these films towards dichloromethane, chloroform and carbon tetrachloride are analyzed by surface plasmon resonance spectroscopy.


23/06/2022

Great promotion of our business idea OliveTech by our team member Irene @i_doblec and another award! We got an Accesit mention at the UPOEmprende contest, organized by the Área de Empleabilidad, Estrategia y Emprendimiento, Fundación de la Universidad Pablo de Olavide. OLIVETECH: Technological solutions for the improvement of olive oil quality.



16/06/2022

New paper just published:

2-Dimensional Rare Earth Metal-Organic Frameworks based on a hexanuclear secondary building unit as efficient detectors for vapours of nitroaromatics and volatile organic compounds - now in Inorganic Chemistry Frontiers https://pubs.rsc.org/en/content/articlelanding/2022/qi/d2qi00799a

A new family of microporous 2-dimensional rare earth metal organic frameworks based on a hexanuclear secondary building unit with capability to selectively detect vapours of volatile organic compounds and nitroaromatic explosives is reported.




27/05/2022

Congratulations to our colleague Irene @i_doblec for the outstanding promotion of our business idea #olivetech: Technological solutions for the improvement of olive oil quality --> OLIVETECH

 

 

25/05/2022

We have a winner! Francisco Javier García Moscoso, who recently obtained his PhD in our group, won the #HiloTesis contest organized by @reddivulga, @crueuniversidad and @pablodeolavide with a Twitter thread outlining his PhD thesis: Luminescent Metal-Organic Frameworks (MOFs) Based Films As Optical Gas Sensors. As the winner of the contest, he will be in the finals of the national contest. Best of luck!

Check his thread:

 

19/05/2022

Our latest publication on olive oil quality: Analyzing the Organoleptic Quality of Commercial Extra Virgin Olive Oils: IOC Recognized Panel Tests vs. Electronic Nose https://mdpi.com/1638256


20/07/2021

Olivetech, our spin-off project, was awarded with the Accesit mention at the UPOEmprende contest, organized by the Área de Empleabilidad, Estrategia y Emprendimiento, Fundación de la Universidad Pablo de Olavide

 

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