+34 620 10 75 37info@nanbiosis.com

News U25

You are here : Home / News U25

Leadership changes and their new contribution to cutting-edge MRI research

Prof. Ana Paula Candiota and Prof. Silvia Lope-Piedrafita lead NANBIOSIS Unit 25, advancing MRI research and glioblastoma imaging with innovative contrast agents.

Barcelona, December 2024. We are proud to announce that Prof. Ana Paula Candiota has been appointed Scientific Director and Prof. Silvia Lope-Piedrafita has taken on the role of Scientific Coordinator of Unit 25 of our ICTS. This pivotal Unit specializes in NMR and MRI biomedical applications and is jointly managed by the Universitat Autònoma de Barcelona (UAB) and CIBER-BBN.

Unit 25 has a longstanding reputation for excellence in magnetic resonance imaging (MRI) research, and the recent publication titled “Synthesis and Relaxivity Study of Amino Acid-Branched Radical Dendrimers as MRI Contrast Agents for Potential Brain Tumor Imaging” exemplifies its capabilities. The study, published last December 2 in the prestigious journal Acta Biomaterialia, highlights the critical role of Unit 25’s advanced MRI technologies in achieving groundbreaking results.

The MRI experiments for this research were conducted on the Unit’s state-of-the-art 7.0 T horizontal bore superconducting magnet (BioSpec 70/30, Bruker BioSpin), equipped with cutting-edge gradient systems (BGA12 gradient coil insert) and custom-designed coils.

Specifically these equipment was used in high-precision in vitro imaging, whole-body MRI of mice, and mouse brain imaging in a key focus area with optimized resolution and sensitivity.

The findings described in this publication underscore the innovative capabilities of Unit 25, particularly in imaging glioblastoma tumors using radical dendrimers. These dendrimers demonstrated selective tumor accumulation and exceptional imaging potential, paving the way for safer and more effective MRI contrast agents.

Recognizing Leadership Excellence

Prof. Ana Paula Candiota and Prof. Silvia Lope-Piedrafita have been integral to the success of Unit 25. Prof. Candiota’s expertise in biomedical imaging and her focus on glioblastoma research have been instrumental in advancing the research portfolio of the Unit. Meanwhile, Dr. Lope-Piedrafita’s contributions to experimental MRI protocols and her collaborative efforts have enhanced the technical and operational excellence of our Unit.

Their leadership positions mark a new era for Unit 25, ensuring continued contributions to biomedical research and collaborations with academic and industry partners.

About NANBIOSIS Unit 25

Unit 25 is part of NANBIOSIS-ICTS, and serves as a hub for cutting-edge MRI technologies for academic and industrial applications. The facilities and expertise within this Unit are available to researchers and companies worldwide, offering services ranging from preclinical imaging studies to the validation of results of molecular imaging with other facilities.

This new leadership reinforces NANBIOSIS mission to deliver world-class scientific support and innovative solutions for the biomedical community.

For further information of our services or collaboration opportunities, visit Unit 25 porfolio here.

Prof. Ana Paula Candiota and Prof. Silvia Lope-Piedrafita

What is NANBIOSIS?

The goal of NANBIOSIS is to provide comprehensive and integrated advanced solutions for companies and research institutions in biomedical applications. All of this is done through a single-entry point, involving the design and production of biomaterials, nanomaterials, and their nanoconjugates. This includes their characterization from physical-chemical, functional, toxicological, and biological perspectives (preclinical validation).

Leading scientists

The main value of NANBIOSIS is our highly qualified and experienced academic scientists, working in public institutions, renowned universities and other research institutes.

Custom solutions

Designed for either scientific collaboration or the private industry, we adapt our services to your needs, filling the gaps and paving the way towards the next breakthrough.

Cutting-Edge facilities

Publicly funded, with the most advanced equipment, offering a wide variety of services from synthesis of nanoparticles and medical devices, including up to preclinical trials.

Standards of quality

Our services have standards of quality required in the pharmaceutical, biotech and medtech sectors, from Good Practices to ISO certifications.

In order to access our Cutting-Edge Biomedical Solutions with priority access, enter our Competitive Call here.

NANBIOSIS has worked with pharmaceutical companies of all sizes in the areas of drug delivery, biomaterials and regenerative medicine. Here are a few of them:

• Read More

Latest breakthroughs in pulmonary drug delivery and cancer research at NANBIOSIS

On World Pharmacists’ Day, NANBIOSIS Units highlighted for breakthroughs in pulmonary drug delivery and cancer research, advancing treatments for respiratory diseases and brain cancer.

Barcelona and Zaragoza, September 2024. On World Pharmacists Day, we celebrate the vital contributions pharmacists make, not only in patient care but also in groundbreaking research that is shaping the future of healthcare. This year 2024, we want to give this significant date a little twist: by showcasing a few examples of how our Units are contributing to healthcare and new pharmaceutical approaches. Two key NANBIOSIS units —Unit 9 and Unit 25— are at the forefront of said scientific advancements, offering promising solutions for respiratory diseases and cancer treatments.

Innovative pulmonary drug delivery

One of the most appealing means to treat respiratory diseases is the delivery directly into the lungs by the use of aerosols containing the drug. This allows having a highly concentrated drug dose in the affected tissue, without exposing the rest of the body to it. However, when done as a dry aerosol powder, this strategy suffers an important drawback: the difficult dispersion of solid particles whose sizes are in the micron or even nanometric scale, which tend to form clusters and larger structures and thus hindering the delivery. And this is where Unit 9 comes to play.

In collaboration with the University of Zaragoza (UNIZAR), our researchers M. Pilar Lobera, Jesús Santamaría and their coworkers, have made remarkable strides in improving this type of pulmonary drug delivery. They have developed an advanced aerosol generator that addresses key limitations in traditional inhalers, including inconsistent dosing and poor control of particle size.

“All nanoparticles used in the validation of this method of aerosolization were synthesized by Unit 9, using coprecipitation, microfluidics or electro-spraying methods.”

— M. Pilar Lobera

This aerosol generator delivers highly dispersed particles directly to the alveoli, the deepest part of the lungs where drug absorption is most effective. The technology offers several crucial benefits:

  • Precise particle control for targeted lung delivery, free of aggregates.
  • Improved bioavailability, ensuring more effective treatment targeting the alveoli and other targeted regions within the lungs.
  • Reproducible dosing across different patients, regardless of how damaged is their lung function.

These advances have the potential to revolutionize the treatment of respiratory conditions such as asthma, chronic obstructive pulmonary disease (COPD), cystic fibrosis, and lung cancer. Capable of aerosolizing a wide range of particles containing diverse biomolecules, including proteins and peptides, the device also shows promise for inhaled vaccines.

A) SEM images of original dry powder formulation. B) SEM image of captured drug in aerosol phase C) TEM image of captured drug in aerosol phase C) Particle size distribution in the aerosol obtained was analyzed in real time using a Scanning Mobility Particle Spectrometers with Condensation Particle Counter as detector, SMPS+C: Foster NextHaler: GMD = 44 ± 1.7 nm; ~ 2400 #/cm3; Ultibro Breezhaler ®: GMD = 70 ± 5.4 nm; ~ 8700 #/cm3

In testing, the device achieved a fourfold increase in alveolar deposition compared to current inhalers, with 99% of particles sized optimally for deep lung delivery, all the way into the alveoli. This breakthrough marks a significant step forward in making inhaled therapies more effective and accessible for patients.

Advancing cancer research

Meanwhile, at NANBIOSIS Unit 25, located at Universitat Autònoma de Barcelona (UAB), researchers are pushing the boundaries of cancer treatment through cutting-edge imaging technologies. Ana Paula Candiota explains to us how their Bruker 7T MRI/MRS/MRSI preclinical scanner allows scientists to noninvasively monitor cancer progression in live animal models. This is particularly interesting in orthotopic models, where tumors grow in their natural location. This technology is crucial for accurately assessing the efficacy of new cancer drugs over time, offering an advantage over traditional subcutaneous models.

One of the standout projects at Unit 25 involved testing a novel treatment for glioblastoma, one of the most aggressive forms of brain cancer. Researchers used intranasally administered Catechol-Based Pt(IV) Coordination Polymer Nanoparticles encapsulating cisplatin. This innovative approach reduced the drug’s toxicity while maintaining its effectiveness, showing great promise for noninvasive cancer therapies.

“The encapsulation aimed to reduce cisplatin’s toxicity, and the study yielded promising results.”

— Ana Paula Candiota

The work being done at Unit 25 highlights the importance of advanced technology and collaboration in the fight against cancer. By enabling more precise evaluation of drug effectiveness and reducing harmful side effects, these innovations bring us closer to more targeted, patient-friendly treatments.

For more information about this research, see the original article here: https://doi.org/10.3390/nano12071221

Top: examples of tumor volume evolution, T2 weighted MRI and Kaplan-Meier Survival curves which can be obtained in facilities of U25. Bottom: the 7T preclinical scanner for MRI/MRS/MRSI of small animals, located at SeRMN-UAB and part of U25.

Celebrating Pharmacists’ impact on research and healthcare

The groundbreaking research taking place at NANBIOSIS Units 9 and 25 reminds us of the essential role pharmacists play, not only in providing care but also in driving medical innovation. Whether that means improving drug delivery systems for respiratory diseases or developing noninvasive cancer treatments, their work is shaping a healthier future for all.

What is NANBIOSIS?

The goal of NANBIOSIS is to provide comprehensive and integrated advanced solutions for companies and research institutions in biomedical applications. All of this is done through a single-entry point, involving the design and production of biomaterials, nanomaterials, and their nanoconjugates. This includes their characterization from physical-chemical, functional, toxicological, and biological perspectives (preclinical validation).

Leading scientists

The main value of NANBIOSIS is our highly qualified and experienced academic scientists, working in public institutions, renowned universities and other research institutes.

Custom solutions

Designed for either scientific collaboration or the private industry, we adapt our services to your needs, filling the gaps and paving the way towards the next breakthrough.

Cutting-Edge facilities

Publicly funded, with the most advanced equipment, offering a wide variety of services from synthesis of nanoparticles and medical devices, including up to preclinical trials.

Standards of quality

Our services have standards of quality required in the pharmaceutical, biotech and medtech sectors, from Good Practices to ISO certifications.

In order to access our Cutting-Edge Biomedical Solutions with priority access, enter our Competitive Call here.

NANBIOSIS has worked with pharmaceutical companies of all sizes in the areas of drug delivery, biomaterials and regenerative medicine. Here are a few of them:

• Read More

Last seat: Our Training in Spectroscopy and MRI for animal testing applications is still open.

Do not miss the chance to join our hands-on XV Workshop of Theoretical-Practical Training in MRS / MRI, with specific application in laboratory animals

Our excellent teacher Dr. Silvia Lope will be at the helm in this practical workshop. And it provides all the required skills users need to operate our fantastic Biospec, available as a service in our Unit 25.

The registration period for the “XV Workshop of Theoretical-Practical Training in Spectroscopy and Magnetic Resonance Imaging (MRS / MRI): Application in Laboratory Animals” is still open until May the 17th, 2024. This workshop is organized by the Department of Biochemistry and Molecular Biology and the Nuclear Magnetic Resonance Service of the Autonomous University of Barcelona, and will take place from May 28 to 30, 2024.

The aim of this workshop is to serve as an introduction to the application of the Magnetic Resonance Imaging (MRI) technique in preclinical studies.

The aim of this workshop is to serve as an introduction to the application of the Magnetic Resonance Imaging (MRI) technique in preclinical studies. The fundamental theoretical concepts that allow understanding the operation of the technique will be explained, with special emphasis on practical application with small animals using our state of the art 7 Teslas Bruker Biospec spectrometer.

The workshop is aimed at students and researchers who want to get started in spectroscopy and magnetic resonance imaging techniques applied to laboratory animals.

How do I apply?

If you are interested, you can download the brochure and the registration form at https://tinyurl.com/XVpreclinicalMRIMRSworkshop. For registration, just submit the registration form back by e-mail to the following address: silvia.lope@uab.cat.

The number of participants is limited to 4 people, and there is one seat left. Do not miss this opportunity!

About NANBIOSIS:

The goal of NANBIOSIS is to provide comprehensive and integrated advanced solutions for companies and research institutions in biomedical applications. All of this is done through a single-entry point, involving the design and production of biomaterials, nanomaterials, and their nanoconjugates. This includes their characterization from physical-chemical, functional, toxicological, and biological perspectives (preclinical validation).

In order to access our Cutting-Edge Biomedical Solutions, place your request here.

NANBIOSIS has worked with pharmaceutical companies of all sizes in the areas of drug delivery, biomaterials and regenerative medicine. Here are a few of them:

• Read More

Nanoparticles to modulate topography and ligand distribution at the nanoscale: impact on cell behavior

Doctor Marc Martínez from the Nanomol-Bio group – NANBIOSIS U6 from CIBER-BBN at ICMAB-CSIC, defended his PhD thesis “Nanoparticles to modulate topography and ligand distribution at the nanoscale: impact on cell behavior” on 9 March 2023 at ICMAB.

he PhD thesis was supervised by Imma Ratera, Judith Guasch and Nora Ventosa from the Nanomol-Bio group at ICMAB-CSIC.

Ana Paula Candiota Silveira, Scientific Coordinator of NANBIOSIS U25 was part of the Committee that evaluated the Thesis tooghether with Jesús Martínez de la Fuente, Instituto de Nanociencia y Materiales de Aragón (INMA-CSIC) (President),  and Anna Lagunas Targarona, Institut de Bioenginyeria de Catalunya (IBEC) (Vocal).

As Marc Martínez explained in an inteview to ICMAB “I produce nanoparticles in the lab and I use them to see how cells react to them. I work at the interface between cells and materials. My research can be applied to cell culture, which can be relevant for the development of new therapies for the regeneration of organs or for building implants to replace missing organs and body parts”.

Doctor Marc Martínez’s PhD thesis was part of the PhD Programme in Biochemistry, Molecular Biology and Biomedicine from the Universitat Autònoma de Barcelona (UAB).

Further information at ICMAB webpage

• Read More

Philipps-Universität Marburg (Germany) -NANBIOSIS U25 collaboration on the study of tumour microenvironment (TME) changes in Glioblastoma

The scientific coordinator of NANBIOSIS U25 “RNM: Biomedical Application I”, Ana Paula Candiota, was recently awarded with a mobility fellowship from CIBER-BBN for a scientific exchange visit to Philipps-Universität Marburg, in Marburg, Germany.


This scientific stage was motivated for a sustained collaboration between the research groups (GABRMN, in charge of U25 and Neurosurgery Lab group in Marburg), regarding the study of tumour microenvironment (TME) changes in Glioblastoma and possible relationship with the noninvasive MRSI-based biomarkers. Both groups have applied together to different funding calls including ERA-NET Transcan and Pathfinder Open, and Marburg group has hosted a predoctoral stage from a GABRMN PhD student.

The University of Marburg is the university with the longest tradition in Hesse, founded in 1527. With thirteen Leibniz Prize winners, the University of Marburg is one of the leading research institutions in the State of Hesse. Related to the Medicine Faculty of the Philipps University of Marburg is the Uniklinikum Giessend Und Marburg (UKGM), in which the Neurosurgery Lab, lead by Prof. Jörg-Walter Bartsch, is located. This group is hosting Dr. Candiota stage until September 9th.

The main objectives of this short stage are to strength the scientific collaboration, to finish pending work related to TME GL261 glioblastoma, to get familiarized with some approaches used in Marburg and not mastered by GABRMN, and finally to give a talk to group and clinical members, highlighting the potential of U25 and the translational characteristics of the common projects held by both institutions.

• Read More

Two NANBIOSIS Units of CIBER-BBN at UAB, one of the 300 best universities in the world, according the Shanghai Ranking

The Academic Ranking of World Universities (ARWU), known as Shanghai Ranking, which was made public on August 15, places the Autonomous University of Barcelona among the elite of the 300 best universities in the world.

This indicator organizes up to 20,000 university centers worldwide,
based on transparent methodology and objective third-party data. ARWU is regarded as one of the three most influential and widely observed university rankings

Two of NANBIOSIS Units created by UAB and CIBER-BBN are part of this university:

U1 Protein Production Platform (PPP), led by Toni Villaverde, Neus Ferrer and Mercedes Marquez, offer an “tailored” service for the design, production and purification of recombinant proteins using both prokaryotic and eukaryotic expression systems

U25 NMR: Biomedical Applications I, led by Carles Arús and Ana Paula Candiota, with a recognized research track record in the use of NMR as a tool for biomedical applications, and more especifically to identify biomarkers of different pathologies, the main objective of this unit is the acquisition, processing and/or interpretation of Nuclear Magnetic Resonance data

• Read More

Metal-free contrast agents: novel approaches

The joint expertise of CIBER-BBN Nanomol Group – NANBIOSIS U6 from at ICMAB-CSIC (José Vidal and Vega Lloveras) and NANBIOSIS U25 at UAB (Ana Paula Candiota), led to a recently published article in the prestigious journal Biomacromolecules

Brain tumours such as Glioblastomas are a challenge in the clinics and proper diagnosis and follow-up are crucial for patient outcome. Contrast agents are usually administered to patients for assessing blood brain barrier integrity and quantitation of enhancing areas are part of the clinical criteria for estimating response/relapse. However, most contrast agents currently used in clinics are based in metal elements such as Gadolinium and are not exempt of risks. In addition, due to the renal excretion route, administering such agents to some patients is contraindicated. Our work explored the potential of organic radicals anchored to dendrimers to act as contrast agents for glioblastoma studies, proposing a metal-free alternative for contrast enhanced glioblastoma studies. The article describes details of synthesis and characterization of these agents, as well as in vivo, ex vivo and in vivo magnetic resonance studies. The orthotopic immunocompetent GL261 glioblastoma murine model was used for in vivo and ex vivo studies. The novel contrast agent proved to be non-harmful for wild type mice and produced sustained and long lasting contrast in tumour-bearing mice, even in much lower doses in comparison with gadolinium administration.

The diagnosis and follow-up of high-grade brain tumours such as glioblastomas relies mostly in MRI, and contrast agents currently used are based on Gadolinium, which is not exempt of risks. The resarchers’ approach explores organic radicals anchored to dendrimers as a metal-free alternative to produce contrast enhancement in MRI, safer than Gadolinium-based compounds, and with translational potential.

Article of reference:
Zhang S, Lloveras V, Lope-Piedrafita S, Calero-Pérez P, Wu S, Candiota AP, Vidal-Gancedo J. Metal-Free Radical Dendrimers as MRI Contrast Agents fof Glioblastoma Diagnosis: Ex Vivo and In Vivo Approaches. Biomacromolecules. 2022 Jun 24. doi: 10.1021/acs.biomac.2c00088.

• Read More

Improving quality of MR spectra from mouse brain. MRSI-detected pattern in glioblastoma patients

Work performed at Unit 25 of Nanbiosis ICTS of “NMR: Biomedical ApplicationsI” is being shown at the Joint annual meeting ISMRM-ESMRMB (May 7-12th) London, with the participation of CIBER-BBN group members Ana Paula Candiota, Silvia Lope-Piedrafita, Miquel Cabañas (abstract 1), Carles Arús, Gulnur Ungan, Margarida Julià-Sapé, Alfredo Vellido and Carles Majós (abstract 2).

In the first abstract, entitled “High resolution Multi-voxel spectroscopy using CSI-semi-LASER for mouse brain preclinical studies” we focused into improving quality of MR spectra obtained from mouse brain, a key factor when trying to pursue metabolomic-based biomarkers.

The second abstract, entitled “MRSI-detected pattern in glioblastoma patients one month after concomitant chemoradiotherapy” presented a study with a retrospective MRSI set of 31 glioblastoma patients and investigation of spectral patterns predictive of true progression or pseudoprogression.

The International Society for Magnetic Resonance in Medicine (ISMRM) and The European Society for Magnetic Resonance in Medicine and Biology (ESMRMB) are prestigious scientific societies devoted to magnetic resonance-based studies at international and European levels with participation of the most renowned scientifics in the field. This year, the international and european events are joined into a single event (https://www.ismrm.org/22m/)

• Read More

Targeting of the breast cancer stem cells to improve the treatment of triple negative breast cancer

On April 1st PhD candidate Patricia Cámara Sánchez defended her doctoral thesis entitled “Targeting of the breast cancer stem cells to improve the treatment of triple negative breast cancer“, where ICTS-Nanbiosis Unit 20 participated in the in vivo assays. The thesis was supervised by Dr. Ibane Abasolo  (scientific director of Unit 20 from CIBER-BBN and VHIR). Nanbiosis was also present within the jury, with Dr. Ana Paula Candiota (scientific coordinator of Unit 25 from CIBER-BBN and UAB) acting as secretary.

Patricia Cámara graduated as biochemist, did the master’s degree in Translational Biomedical Research from VHIR-UAB. Shortly after, started the PhD, which was aimed at improving the treatment of very deadly subtype of breast cancer by using different nanoformulations to specifically target the cancer stem cells. The now doctor Cámara-Sánchez screened up to 20 small drugs with anti-cancer stem cell activity, found synergistic ratios with conventional chemotherapeutic agents, and finally developed polymeric micelles encapsulating selected drugs. During the discussion of the dissertation, the need of additional in vivo assays was highlighted, as well as the potential use of MR provided by the U25, to explore non-invasively the metabolomic differences between cancer stem cells and regular cancer cells.

‘I’m very grateful for the opportunity to have been part of this amazing project. It has been a very enriching experience’, she explains. ‘After 5 years of research, I finish the PhD feeling very proud of having contributed to the fight against this aggressive subtype of breast cancer’, she adds. From now on, new research lines will bring forward the synergies between both units of NANBIOSIS, reinforcing a collaboration started several years ago and reflected in joint papers.

• Read More

Radical Dendrimers as Contrast Agents for Magnetic Resonance Imaging

José Vidal Gancedo, researcher from ICMAB-CSIC and CIBER-BBN is leading the project VIRADEN: “In vivo Studies of Radical Dendrimers as Contrast Agents for Magnetic Resonance Imaging“, one of the ICMAB Frontier Interdisciplinary Projects (FIP) 2021.

The project aims to evaluate the new contrast agents for MRI based on organic radical dendrimers developed in his group, to substitute the currently used contrast agents based on toxic metals, with the final goal of obtaining useful contrast agents in the early detection of tumors

José Vidal has explained NANBIOSIS participation in the project through Biomaterial Processing and Nanostructuring equipments of NANBIOSIS U6 counting with the expertise of José Amable Bernabé and the Ex vivo and in vivo studies with dendrimers for MRI of NANBIOSIS U25 with the expertise of Ana Paula Candiota.

ICMAB FIPs are possible thanks to the financial support from the Spanish Ministry Science and Innovation, through the “Severo Ochoa” Programme for Centres of Excellence in R&D (CEX2019-000917-S).

• Read More