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U30-S03. Protein identification by mass spectrometry (MS) or MS/MS

Protein identification by mass spectrometry (MS) or MS/MS

Identification of proteins in biological samples, either by intact protein analysis (MALDI-TOF) or protein digestion followed by peptide mass fingerprinting (PMF, MS) or peptide fragmentation (MS/MS).

Customer benefits

Identification of proteins by mass spectrometry allows the characterization of biological samples, analysis of protein interactions (e.g. pull-down assays), peptide sequencing, etc. Identifications are performed with the highest specificity.

Target customer

Organizations and research groups interested in small or large-scale protein analysis.

Additional information

E03 MALDI-TOF/TOF System

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U30-S02. Determination of molecular mass of peptides, proteins and other biomolecules

Determination of molecular mass of peptides, proteins and other biomolecules

Analysis of intact proteins, peptides and other biomolecules such as oligonucleotides using mass spectrometry (MALDI-TOF or ESI-Q-TOF) for the determination of their exact molecular mass.

Customer benefits

This service is useful to characterize a variety of biomolecules by the determination of their molecular mass with an extreme high precision. This is an essential step in many biotechnological strategies involving protein synthesis and production.

Target customer

Organizations or research groups aiming to characterize specific proteins, peptides or other biomolecules by the determination of their molecular mass.

U30 S02 Determination of molecular mass of peptides, proteins and other biomolecules
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U30-S01. Sample preparation for proteomic analysis

Sample preparation for proteomic analysis

This service includes all necessary steps to prepare samples for different proteomic analyses: protein extraction from tissues, cells or fluids, precipitation, cleaning, desalting, quantification and digestion (in gel or in solution) with proteolytic enzimes (trypsin, chymotrypsin, lys-C…), to obtain the correspondent peptides.

Customer benefits

Biological samples are processed and prepared following standardized protocols by personnel highly specialized in techniques for protein analysis.
The service allows organizations without prior experience in protein or proteomic analysis to avoid performing any experiment, only needing to provide the biological specimen to the Unit.

Target customer

Organizations or research groups interested in performing protein or proteomic analyses in a wide range of biological samples: cells, tissues, biofluids, protein extracts, etc.

U30 S01 Sample preparation for proteomic analysis
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U26-S06. Biomedical and metabolomic imaging

Biomedical and metabolomic imaging

The service is intended for obtaining images animals such as mice and rats. Longitudinal studies can be performed as well. Thanks to a pre-clinical 7 T nmr equipment equipped with a PET plug-in. Co-localized NMR-PET-CT imagens can be obtained.

Customer benefits

The service is integrated in the University of Valencia core facility that ensures the correct maintenance and the offsite service runed by technicians under ISO 9001.

Target customer

The primary audience are pre-clinic research groups that require punctual or longitudinal studies on such animals. Plant and food researchers can benefit from the fact that the equipment can acquire the image in vertical position preserving the natural flux of fluids in plants.

Additional information

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U8-S05. Deposition of thin films (Polyimide, Parylene) for the fabrication of flexible devices or encapsulation purposes (On-site&Remote) OUTSTANDING.

Deposition of thin films (Polyimide, Parylene) for the fabrication of flexible devices or encapsulation purposes (On-site&Remote) OUTSTANDING.

Deposition of Polyimide (PI-2611) via spin-coating for the fabrication of flexible free-standing structures.
Conformal deposition of Parylene (different types available)

Customer benefits

  • Possibility to access to the PI deposition system in self-service mode to adapt the process to the customer needs.
  • Different Parylene types available for deposition to match customer needs

Target customer

Research groups and SMEs

References

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U8-S06. Encapsulation or fabrication of 3D strcutures via 3D printing.

Encapsulation or fabrication of 3D strcutures via 3D printing.

Fabrication of 3D structures using a dual extrusion 3D printer that delivers high-quality, composite-ready performance – in a smaller footprint

Customer benefits

Possibility to access to the 3D printing equipment in self-service mode to adapt the process to the customer needs.

Target customer

Research groups and SMEs

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U20-S015. Cytotoxicity: proliferation, LDH, apoptosis and ROS

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U20-S014. Hemocompatibility: hemolysis, platelet aggregation, plasma coagulation times and complement activation

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U20-S013. Detection of microbial (bacterial and mycoplasma) contaminationpre

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U29-S02. Modification of oligonucleotides. (Remote) OUTSTANDING

Modification of oligonucleotides

This service is dedicated to the custom synthesis of oligonucleotide conjugates including oligonucleotides carrying lipids, amino acids, peptides or carbohydrates. In addition, they may include other modifications such as phosphorothioate linkages, 2’-O-methyl-RNA, 2’-O-MOE-RNA, 2′-F-RNA, Locked nucleic acids (LNA), modified nucleotides. The oligonucleotides will be prepared in 1 micromol scale. In most cases, the preparation of the conjugates will require the preparation of oligonucleotides carrying reactive groups such as; amino or thiol groups, which will be subjected to a post-synthetic modification. Purification and characterization will include reversed-phase HPLC analysis and mass spectrometry (MALDI-TOF).

Modification of oligonucleotides during and post synthesis to meet user requirements:

  • Conjugation of oligonucleotides with fluorophores (fluoresceine, Cy3, Ct5, etc..) and other types of small molecules such as biotine, lipids.
  • Conjugation to peptides.
  • Phosphorothioate linkages
  • Modified backbones such as locked nucleic acids (LNA), 2’-O-alkyl-RNA, etc..
  • Modified nucleobases: 2-aminopurine, 5-methyl-dC, etc…
  • 5’, 3’-modifications such as 5’-, 3’-amino, 5’-, 3’-thiol, etc..

Customer benefits

The service benefits from the 40-years’ experience of the researchers participating in the service, with hundreds of scientific communications on improving the methodology used for the synthesis of modified oligonucleotides. This includes fatty acid derivatives, amino acids, cell penetrating peptides and carbohydrates not available from other services. In addition, the service can develop customized solutions for molecules not addressed in the bibliography.

Target customer

The primary audience are research groups and companies working on gene therapy and gene inhibition in the early stages of preclinical development.

References

1) “Aptamer-peptide conjugates as a new strategy to modulate human α-thrombin binding affinity”. Aviñó, A. et al. Biochim. Biophys. Acta (General subjects), 1863, 1610-1630 (2019).
2) “Synthesis of oligonucleotides carrying amino-lipid groups at the 3’-end for RNA interference studies”. Grijalvo, S. et al. J. Org. Chem., 75, 6806-6813 (2010).
3) “Synthesis and evaluation of 3’ oleyl-oligonucleotide conjugates as potential cellular uptake enhancers”. Navarro, N. et al. SYNLETT, in press (2024). doi: 10.1055/s-0042-1751528.

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