Univ.-Prof. Dr. Freddy Kleitz
T: +43-1-4277-52902
1 - 20 out of 135












Riva, A., Rasoulimehrabani, H., Cruz-Rubio, J. M., Schnorr, S. L., von Baeckmann, C., Inan, D., Nikolov, G., Herbold, C. W., Hausmann, B., Pjevac, P., Schintlmeister, A., Spittler, A., Palatinszky, M., Kadunic, A., Hieger, N., Del Favero, G., von Bergen, M., Jehmlich, N., Watzka, M., ... Berry, D. (2023). Identification of inulin-responsive bacteria in the gut microbiota via multi-modal activity-based sorting. Nature Communications, 14(1), Article 8210. https://doi.org/10.1038/s41467-023-43448-z





Ayala, P., Naghdi, S., Nandan, S. P., Myakala, S. N., Rath, J., Saito, H., Guggenberger, P., Lakhanlal, L., Kleitz, F., Toroker, M. C., Cherevan, A., & Eder, D. (2023). The Emergence of 2D Building Units in Metal-Organic Frameworks for Photocatalytic Hydrogen Evolution: A Case Study with COK-47. Advanced energy materials, 13(31), Article 2300961. https://doi.org/10.1002/aenm.202300961



1 - 20 out of 135

Connecting Shape and Surface Chemistry of Mesoporous Silica Nanoparticles to Intestinal Barrier Function

Freddy Kleitz (Invited speaker)

4 Nov 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Design of highly selective nano-sorbents for critical materials recovery

Justyna Agata Florek (Speaker), Aaron Brewer (Contributor), Dominik Larivière (Contributor) & Freddy Kleitz (Contributor)

4 Nov 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Transport of bioactive insulin to the intestinal epithelium: Novel oral formulations based on mesoporous silica nanoparticles

Claudia Iriarte Mesa (Speaker), Estelle Juère (Contributor), Andrea Bileck (Contributor), Thomas Kremsmayr (Contributor), Michael L. Goodson (Contributor), Allison Ehrlich (Contributor), Christopher Gerner (Contributor), Hanspeter Kählig (Contributor), Doris Marko (Contributor), Markus Muttenthaler (Contributor), David Berry (Contributor), Giorgia Del Favero (Contributor) & Freddy Kleitz (Contributor)

4 Nov 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Hydrothermally Synthesized SnS 2 Anode Materials with Selectively Tuned Crystallinity as an Asset for Self-Healing Property and One Step in Situ Solid State Carbonization and Synthesis of C-SnS2.

Akzhan Bekzhanov (Speaker), Damian Cupid (Contributor) & Freddy Kleitz (Contributor)

6 Oct 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Designing macroporous-mesoporous adsorbents for sustainability

Freddy Kleitz (Invited speaker), Aaron Brewer (Contributor), Changxia Li (Contributor), Patrick Guggenberger (Contributor) & Justyna Agata Florek (Contributor)

18 Sept 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Enhanced self-assembly of mesoporous silica particlesthrough fine-tuning of peptide-silica conjugation and aggregation behavior

Ann-Jacqueline Herbst (Speaker), Guilherme Rubio (Contributor), Hanspeter Kählig (Contributor), Dennis Kurzbach (Contributor), Michael Reithofer (Contributor) & Freddy Kleitz (Contributor)

13 Sept 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Tools to Probe Paracellular Permeability at the Nanoscale: Connecting the Shape and Surface Chemistry of Mesoporous Silica Nanoparticles to Intestinal Barrier Function

Claudia Iriarte Mesa (Speaker), Janice Bergen (Contributor), Maximilian Jobst (Contributor), Kristina Danielyan (Contributor), Endre Kiss (Contributor), Ryong Ryoo (Contributor), Jeong-Chul Kim (Contributor), Francesco Crudo (Contributor), Doris Marko (Contributor), Hanspeter Kählig (Contributor), Giorgia Del Favero (Contributor) & Freddy Kleitz (Contributor)

13 Sept 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Mycotoxin Fumonisin B1 and Palmitic Acid Modulate Lipid Metabolism and Affect Biomechanical Compliance in Conjunction with Rod-Shaped Silica-Based Nanoparticles

Janice Bergen (Speaker), Claudia Iriarte Mesa (Contributor), Francesco Crudo (Contributor), Doris Marko (Contributor), Freddy Kleitz (Contributor), Franz Berthiller (Contributor) & Giorgia Del Favero (Contributor)

12 Sept 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Materials with nanometer-size pores: New opportunities for healthcare and sustainable technologies

Freddy Kleitz (Invited speaker)

2 Sept 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Atmospheric water harvesting using sulfonated porous organic materials: is crystallinity key?

Paul Schweng (Speaker), Florian Mayer (Contributor), Changxia Li (Contributor), Patrick Guggenberger (Contributor), Freddy Kleitz (Contributor) & Robert Woodward (Contributor)

18 Aug 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Tools to Probe Paracellular Permeability at the Nanoscale: Connecting the Shape and Surface Chemistry of Mesoporous Silica Nanoparticles to Intestinal Barrier Function

Claudia Iriarte Mesa (Speaker), Janice Bergen (Contributor), Maximilian Jobst (Contributor), Kristina Danielyan (Contributor), Endre Kiss (Contributor), Ryong Ryoo (Contributor), Jeong-Chul Kim (Contributor), Francesco Crudo (Contributor), Doris Marko (Contributor), Hanspeter Kählig (Contributor), Giorgia Del Favero (Contributor) & Freddy Kleitz (Contributor)

8 Jul 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Novel Material Innovations for the Efficient Extraction and Separation of Critical Elements

Iryna Protsak (Speaker), Aaron Brewer (Contributor), Martin Owton (Contributor), Martin Stockhausen (Contributor), Thilo Hofmann (Contributor) & Freddy Kleitz (Contributor)

9 Jun 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Selective extraction of critical elements by silica-based materials

Iryna Protsak (Speaker), Martin Stockhausen (Contributor), Aaron Brewer (Contributor), Martin Owton (Contributor), Thilo Hofmann (Contributor) & Freddy Kleitz (Contributor)

4 Jun 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


4D model for intestinal toxicity profiling: a case study on Fusarium mycotoxins fumonisin B1 and deoxynivalenol

Giorgia Del Favero (Speaker), Janice Bergen (Contributor), Claudia Iriarte Mesa (Contributor), Maximilian Jobst (Contributor), Francesco Crudo (Contributor), Doris Marko (Contributor), Freddy Kleitz (Contributor) & Franz Berthiller (Contributor)

3 Jun 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Designing macroporous-mesoporous adsorbents for Sustainability

Freddy Kleitz (Invited speaker), Aaron Brewer (Contributor), Changxia Li (Contributor), Patrick Guggenberger (Contributor) & Justyna Agata Florek (Contributor)

19 May 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Designing a novel sorbent for targeted recovery of critical elements

Iryna Protsak (Speaker), Aaron Brewer (Contributor), Martin Owton (Contributor), Martin Stockhausen (Contributor), Thilo Hofmann (Contributor) & Freddy Kleitz (Contributor)

17 Mar 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Enhanced self-assembly of mesoporous silica particlesthrough fine-tuning of peptide-silica conjugation and aggregation behavior

Ann-Jacqueline Herbst (Speaker), Guilherme Rubio (Contributor), Hanspeter Kählig (Contributor), Dennis Kurzbach (Contributor), Michael Reithofer (Contributor) & Freddy Kleitz (Contributor)

28 Feb 2024

Activity: Talks and presentationsTalk or oral contributionScience to Science


Materials with nanometer-size pores: New opportunities for healthcare and sustainable technologies

Freddy Kleitz (Invited speaker)

2 Sept 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


Organo-functionalized silicas for selective solid-phase extraction of critical materials

Justyna Agata Florek (Speaker), Dominik Larivière (Contributor), Hanspeter Kählig (Contributor), Sonia L. Fiorilli (Contributor), Barbara Onida (Contributor), Frederic-Georges Fontaine (Contributor) & Freddy Kleitz (Contributor)

2 Jul 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


Immobilization of the polyphenol oxidase AbPPO4 on mesoporous silica: towards mimicking key enzymatic processes in peat soils

Claudia Iriarte Mesa (Speaker), Matthias Pretzler (Contributor), Cornelia von Baeckmann (Contributor), Annette Rompel (Contributor) & Freddy Kleitz (Contributor)

27 May 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


Low-temperature calcination-induced defects in ordered mesoporous mixed metal oxide spinels for optimized oxygen evolution reaction (OER) performance

Patrick Guggenberger (Speaker), Tatiana Priamushko (Contributor), Christian M. Pichler (Contributor) & Freddy Kleitz (Contributor)

20 Mar 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


Mesoporous Sorbents for Critical Materials Separation

Justyna Agata Florek (Speaker), Dominic Lariviere (Contributor), Hanspeter Kählig (Contributor), Sonia Lucia Fiorilli (Contributor), Barbara Onida (Contributor), Frederic-Georges Fontaine (Contributor) & Freddy Kleitz (Contributor)

19 Oct 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


Peptide-conjugation of silica nanoparticles as a tool for evaporation-induced self-assembly

Ann-Jacqueline Herbst (Speaker), Cornelia von Baeckmann (Contributor), Guilherme Rubio (Contributor), Freddy Kleitz (Contributor), Michael Reithofer (Contributor), Dennis Kurzbach (Contributor) & Hanspeter Kählig (Contributor)

19 Oct 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


TANNylation of Mesoporous Silica Nanoparticles and Bioactivity Profiling in Intestinal Cells

Mariam Hohagen (Speaker) & Freddy Kleitz (Contributor)

19 Oct 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


Immobilization of the polyphenol oxidase AbPPO4 on mesoporous silica: towards mimicking key enzymatic processes in peat soils

Claudia Iriarte Mesa (Speaker) & Freddy Kleitz (Contributor)

19 Sept 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


Peptide-conjugation of silica nanoparticles as a tool for evaporation-induced self-assembly

Ann-Jacqueline Herbst (Speaker), Cornelia von Baeckmann (Contributor), Guilherme Rubio (Contributor), Freddy Kleitz (Contributor), Michael Reithofer (Contributor), Dennis Kurzbach (Contributor) & Hanspeter Kählig (Contributor)

19 Sept 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


Innovative Approach to Control Bladder Infections Using MANNylation Strategies for Mesoporous Silica Nanoparticles

Mariam Hohagen (Speaker) & Freddy Kleitz (Contributor)

15 Sept 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


TANNylation of Mesoporous Silica Nanoparticles and Bioactivity Profiling in Intestinal Cells

Mariam Hohagen (Speaker) & Freddy Kleitz (Contributor)

23 Mar 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


FUNCTIONAL MESOPOROUS SILICA NANOPARTICLES FOR THE IMPROVED ORAL DELIVERY OF INSULIN

Claudia Iriarte Mesa (Speaker), Estelle Juère (Contributor), Doris Marko (Contributor), Giorgia Del Favero (Contributor) & Freddy Kleitz (Contributor)

17 Nov 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


Improved oral delivery of insulin using functional mesoporous silica nanoparticles

Claudia Iriarte Mesa (Speaker), Estelle Juère (Contributor), Doris Marko (Contributor), Giorgia Del Favero (Contributor) & Freddy Kleitz (Contributor)

23 Sept 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


TANNylation of Mesoporous Silica Nanoparticles and Bioactivity Profiling in Intestinal Cells

Mariam Hohagen (Speaker) & Freddy Kleitz (Contributor)

23 Sept 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


Fe/Mn-Substituted Mesoporous Nickel Cobalt Oxides as Optimized Electrocatalysts for Water Splitting

Patrick Guggenberger (Speaker), Tatiana Priamushko (Contributor), Andreas Mautner (Contributor), John Lee (Contributor) & Freddy Kleitz (Contributor)

20 Sept 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


Improved oral delivery of insulin using functional mesoporous silica nanoparticles

Claudia Iriarte Mesa (Speaker), Estelle Juère (Contributor), Doris Marko (Contributor), Giorgia Del Favero (Contributor) & Freddy Kleitz (Contributor)

20 Sept 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


Improved oral delivery of insulin using smart protein-based formulations of mesoporous silica nanoparticles

Claudia Iriarte Mesa (Speaker), Estelle Juère (Contributor), Doris Marko (Contributor), Giorgia Del Favero (Contributor) & Freddy Kleitz (Contributor)

13 Sept 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


Designing functional mesoporous silica nanoparticles for improved oral delivery of insulin

Claudia Iriarte Mesa (Speaker), Estelle Juère (Contributor) & Freddy Kleitz (Contributor)

10 Mar 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


Mesoporous Silica Particles for Drug Delivery Applications

Freddy Kleitz (Keynote speaker)

10 Mar 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


Mesoporous Silica Particles for Drug Delivery Applications

Freddy Kleitz (Keynote speaker)

20 Jan 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


Materials with nanometer-size pores: New opportunities for healthcare and sustainable technologies

Freddy Kleitz (Invited speaker)

19 Feb 2020

Activity: Talks and presentationsTalk or oral contributionScience to Science


Solid-Phase Extraction of Rare-Earth Elements using Mesoporous Organic-Inorganic Hybrids

Freddy Kleitz (Invited speaker)

12 Nov 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Materials with nanometer-size pores: New opportunities for healthcare and sustainable technologies

Freddy Kleitz (Invited speaker)

30 Sept 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Nanoporous Hybrid Materials for Extraction Chromatography and Drug Delivery Applications

Freddy Kleitz (Invited speaker)

6 Jun 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Nanoporous Oxides and Hybrid Materials for Heterogeneous Catalysis and Extraction Chromatography

Freddy Kleitz (Invited speaker)

4 Jun 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Microfluidic synthesis of hybrid biopolymer membranes for biological and physiochemical sensing applications

J. Greener (Speaker), J. Nan (Contributor), Freddy Kleitz (Contributor), Estelle Juère (Contributor) & E. Rosela (Contributor)

3 Jun 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Nanoporous Hybrid Materials for Extraction Chromatography and Drug Delivery Applications

Freddy Kleitz (Invited speaker)

30 May 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Nanoporous Hybrid Materials for Extraction Chromatography and Drug Delivery Applications

Freddy Kleitz (Keynote speaker)

21 May 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Mesoporous Organic-Inorganic Hybrid Materials for Extraction Chromatography

Freddy Kleitz (Invited speaker)

3 Apr 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Nanocast Mixed Metal Oxides: Templated Synthesis, Characterization and Uses

Freddy Kleitz (Invited speaker)

18 Mar 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Design of multi-functionalized mesoporous silica nanoparticles for biomedical applications

Cornelia von Baeckmann (Speaker), Rémy Guillet-Nicolas (Contributor), Damien Renfer (Contributor), Hanspeter Kählig (Contributor) & Freddy Kleitz (Contributor)

11 Mar 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


A Toolbox for the Synthesis of Multi-Functionalized Mesoporous Silica Nanoparticles for Biomedical Applications

Cornelia von Baeckmann (Speaker), Rémy Guillet-Nicolas (Contributor), Damien Renfer (Contributor), Hanspeter Kählig (Contributor) & Freddy Kleitz (Contributor)

6 Mar 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


The use of solid state NMR for the characterization of organic-inorganic nanoporous sorbents and nanocarriers

Freddy Kleitz (Invited speaker)

5 Sept 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Mesoporous Silica Nanoparticles for Drug Delivery Applications

Freddy Kleitz (Invited speaker)

3 Sept 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Nanoporous Organo-functionalized Materials as Selective Sorbents for Rare Earth Extraction

Justyna Agata Florek (Speaker), Dominic Larivière (Contributor) & Freddy Kleitz (Contributor)

3 Sept 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


ONE-STEP IMPREGNATION NANOCASTING AS AN ADVANCED METHOD FOR THE SYNTHESIS OF MESOPOROUS NON-NOBLE MIXED METAL OXIDES FOR CATALYSIS

Tatiana Priamushko (Speaker), Rémy Guillet-Nicolas (Contributor) & Freddy Kleitz (Contributor)

21 May 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Nanoporous Oxides and Hybrid Materials for Heterogeneous Catalysis and Extraction Chromatography

Freddy Kleitz (Invited speaker)

24 Apr 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Periodic mesoporous organosilica nanoparticles as potential drug delivery vehicles

Siegfried Fürtauer (Speaker), Justyna Agata Florek (Contributor) & Freddy Kleitz (Contributor)

26 Mar 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Nanoporous Oxides and Hybrid Materials for Heterogeneous Catalysis and Extraction Chromatography

Freddy Kleitz (Invited speaker)

6 Nov 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Selectively Tuned Pore Condensation and Hysteresis Behavior in Mesoporous SBA-15 & KIT-6: Correlating Material Synthesis to Advanced NLDFT Porosity Analysis

Rémy Guillet-Nicolas (Speaker), Matthias Thommes (Contributor) & Freddy Kleitz (Contributor)

6 May 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Functionalization of Mesoporous Materials for Solid-Phase Extraction of Lanthanides and Actinides

Freddy Kleitz (Invited speaker)

5 May 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Functional Nanoporous Oxides and Organic-Inorganic Hybrid Materials: An Overview

Freddy Kleitz (Invited speaker)

7 Apr 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Selectively Tuned Pore Condensation and Hysteresis Behavior in Mesoporous SBA-15 & KIT-6: Correlating Material Synthesis to Advanced NLDFT Porosity Analysis

Rémy Guillet-Nicolas (Speaker), Matthias Thommes (Contributor) & Freddy Kleitz (Contributor)

28 Feb 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Porous Silica Nanoparticles for Nanomedicine Applications

Freddy Kleitz (Invited speaker)

22 Feb 2017

Activity: Talks and presentationsTalk or oral contributionScience to Public


Nanoporous Oxides and Organic-Inorganic Hybrid Materials: Synthesis, Morphology Control and Functionalization

Freddy Kleitz (Invited speaker)

25 Nov 2016

Activity: Talks and presentationsTalk or oral contributionScience to Science


Nanoporous Oxides and Hybrid Materials for Heterogeneous Catalysis and Extraction Chromatography

Freddy Kleitz (Invited speaker)

23 Sept 2016

Activity: Talks and presentationsTalk or oral contributionScience to Science


Department of Functional Materials and Catalysis

Head

Währinger Straße 42
1090 Wien
Room: 2272

T: +43-1-4277-52902

freddy.kleitz@univie.ac.at