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  1. Article ; Online: A New Approach to the Treatment of Sacroiliac Joint Pain and First Patient-Reported Outcomes Using a Novel Arthrodesis Technique for Sacroiliac Joint Fusion.

    Fuchs, Volker / Rieger, Bernhard

    Orthopedic research and reviews

    2024  Volume 16, Page(s) 43–57

    Abstract: Purpose: To report the development of a new sacroiliac joint (SIJ) arthrodesis system that can be used for isolated fusion of the SIJ and, unlike known implant systems, in combination with lumbar instrumentation or as an alternative to existing ... ...

    Abstract Purpose: To report the development of a new sacroiliac joint (SIJ) arthrodesis system that can be used for isolated fusion of the SIJ and, unlike known implant systems, in combination with lumbar instrumentation or as an alternative to existing sacropelvic fixation (SPF) methods, and the patient-reported outcomes in two cases.
    Materials and methods: After a comprehensive review of 207 pelvic computed tomography (CT) datasets, an implant body was designed. Its shape was modeled based on the SIJ recess. A screw anchored in the ilium secures the position of the implant and allows connection to lumbar instrumentation. Two patients with confirmed SIJ syndrome underwent surgery with the anatomically adapted implant. They were evaluated preoperatively, 6 months, and 12 months postoperatively. Visual Analogue Scale (VAS), Oswestry Disability Index (ODI), Million Visual Analogue Scale (MVAS), Roland Morris Score (RMS), reduction of SIJ/leg pain, and work status were assessed. Bony fusion of the SIJ was evaluated by radiographs and CT 12 months after the procedure.
    Results: Analysis of pelvic CT data revealed a wedge-shaped implant body in four different sizes. In the two patients, VAS decreased from 88 to 33 points, ODI improved from 67 to 35%, MVAS decreased from 80 to 36%, and RMS decreased from 18 to 9 points 12 months after surgery. SIJ pain reduction was 80% and 90%, respectively. Follow-up CT and radiographs showed solid bony integration.
    Conclusion: The implant used takes into account the unique anatomy of the SIJ and also meets the requirements of a true arthrodesis. Initial results in two patients are promising. Biomechanical and clinical studies will have to show whether the considerable theoretical advantages of the new implant system over existing SIJ implants - in particular the possibility of connection to a lumbar stabilization system - and SPFs can be put into practice.
    Language English
    Publishing date 2024-02-01
    Publishing country New Zealand
    Document type Journal Article
    ZDB-ID 2520718-0
    ISSN 1179-1462 ; 1179-1462
    ISSN (online) 1179-1462
    ISSN 1179-1462
    DOI 10.2147/ORR.S434566
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Simple and Rapid Access toward AB, BAB and ABAB Block Copolyesters from One-Pot Monomer Mixtures Using an Indium Catalyst.

    Bruckmoser, Jonas / Rieger, Bernhard

    ACS macro letters

    2022  Volume 11, Issue 9, Page(s) 1067–1072

    Abstract: The synthesis of well-defined block copolymers from one-pot monomer mixtures is particularly challenging when monomers are from the same class and show similar reactivity. Herein, an indium-based catalyst that shows comparable rates in the ring-opening ... ...

    Abstract The synthesis of well-defined block copolymers from one-pot monomer mixtures is particularly challenging when monomers are from the same class and show similar reactivity. Herein, an indium-based catalyst that shows comparable rates in the ring-opening homopolymerization of β-butyrolactone (β-BL) and ε-decalactone (ε-DL), demonstrates monomer-selective behavior in one-pot copolymerizations of β-BL and ε-DL. This provides simple and rapid access to well-defined di-, tri-, or tetra-block copolyesters from monomer mixtures. The sequence-controlled nature of these polymers was confirmed by kinetic analysis, <sup>13</sup>C{<sup>1</sup>H} NMR spectroscopy, DSC, and TGA measurements.
    MeSH term(s) Indium ; Kinetics ; Lactones ; Polyesters ; Polymerization ; Polymers
    Chemical Substances Lactones ; Polyesters ; Polymers ; Indium (045A6V3VFX) ; epsilon-decalactone (5579-78-2)
    Language English
    Publishing date 2022-08-17
    Publishing country United States
    Document type Journal Article
    ISSN 2161-1653
    ISSN (online) 2161-1653
    DOI 10.1021/acsmacrolett.2c00468
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Fabrication of Crescent Shaped Microparticles for Particle Templated Droplet Formation.

    Yang, Yimin / Vagin, Sergei I / Rieger, Bernhard / Destgeer, Ghulam

    Macromolecular rapid communications

    2024  , Page(s) e2300721

    Abstract: Crescent-shaped hydrogel microparticles are shown to template uniform volume aqueous droplets upon simple mixing with aqueous and oil media for various bioassays. This emerging "lab on a particle" technique requires hydrogel particles with tunable ... ...

    Abstract Crescent-shaped hydrogel microparticles are shown to template uniform volume aqueous droplets upon simple mixing with aqueous and oil media for various bioassays. This emerging "lab on a particle" technique requires hydrogel particles with tunable material properties and dimensions. The crescent shape of the particles is attained by aqueous two-phase separation of polymers followed by photopolymerization of the curable precursor. In this work, the phase separation of poly(ethylene glycol) diacrylate (PEGDA, M
    Language English
    Publishing date 2024-04-14
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1475027-2
    ISSN 1521-3927 ; 1022-1336
    ISSN (online) 1521-3927
    ISSN 1022-1336
    DOI 10.1002/marc.202300721
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Book ; Thesis: Untersuchung über die Relevanz und die Aussagekraft von Prognosefaktoren bei Patientinnen mit Mammakarzinom, die unter kurativer Zielsetzung therapiert wurden

    Rieger, Bernhard Georg

    2001  

    Author's details vorgelegt von Bernhard Georg Rieger
    Language German
    Size 73 Bl., graph. Darst.
    Publishing country Germany
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Erlangen, Nürnberg, Univ., Diss., 2001
    HBZ-ID HT013353868
    Database Catalogue ZB MED Medicine, Health

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  5. Article ; Online: Highly Isoselective Ring-Opening Polymerization of

    Bruckmoser, Jonas / Pongratz, Stefanie / Stieglitz, Lucas / Rieger, Bernhard

    Journal of the American Chemical Society

    2023  Volume 145, Issue 21, Page(s) 11494–11498

    Abstract: We report the highly isoselective ring-opening polymerization (ROP) of racemic β-butyrolactone (β-BL) ... ...

    Abstract We report the highly isoselective ring-opening polymerization (ROP) of racemic β-butyrolactone (β-BL) using
    Language English
    Publishing date 2023-05-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3155-0
    ISSN 1520-5126 ; 0002-7863
    ISSN (online) 1520-5126
    ISSN 0002-7863
    DOI 10.1021/jacs.3c02348
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Correction to "Cytocompatible Triblock Copolymers with Controlled Microstructure Enabling Orthogonally Functionalized Bio-polymer Conjugates".

    Halama, Kerstin / Lin, Molly Tzu-Yu / Schaffer, Andreas / Foith, Marvin / Adams, Friederike / Rieger, Bernhard

    Macromolecules

    2024  Volume 57, Issue 9, Page(s) 4635

    Abstract: This corrects the article DOI: 10.1021/acs.macromol.3c02238.]. ...

    Abstract [This corrects the article DOI: 10.1021/acs.macromol.3c02238.].
    Language English
    Publishing date 2024-04-19
    Publishing country United States
    Document type Published Erratum
    ZDB-ID 3436-8
    ISSN 0024-9297
    ISSN 0024-9297
    DOI 10.1021/acs.macromol.4c00692
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: High-Molecular-Weight Bisalkoxy-Substituted Poly(para)phenylenes by Kumada Polymerization

    Kleybolte, Moritz E. / Vagin, Sergei I. / Rieger, Bernhard

    Macromolecules. 2022 June 27, v. 55, no. 13

    2022  

    Abstract: Substituted poly(para)phenylenes (PPPs) are conjugated polymers with an attractive application potential in various fields of materials science. They are synthesized nearly exclusively using catalytic cross-coupling polymerization reactions based on Pd- ... ...

    Abstract Substituted poly(para)phenylenes (PPPs) are conjugated polymers with an attractive application potential in various fields of materials science. They are synthesized nearly exclusively using catalytic cross-coupling polymerization reactions based on Pd- or Ni-catalysts. Among these synthetic approaches to access alkoxy-substituted PPPs, Kumada catalyst transfer polymerization (KCTP or GRIM polymerization) would offer certain economic advantages over Suzuki-type polymerization as it relies on the utilization of a non-precious metal for catalysis. It also results in less total costs of the utilized reagents, avoiding additional preparative steps such as synthesis, isolation, and purification of boronic acid derivatives necessary for the Suzuki reaction. In fact, KCTP is nowadays the state-of-the-art method for the synthesis of polythiophenes. However, the application of KCTP for the synthesis of alkoxy-substituted PPPs leads to polymers with low molecular weights, limiting their practical applicability. Here, we developed a synthesis protocol that resulted in MEH-PPP with a molecular weight of Mₙ = 133 kg/mol and BHex-PPP with Mₙ = 153 kg/mol relative to polystyrene, outperforming the previous state of the art by a factor more than 5. Also, a tetra(ethylene glycol)-substituted PPP has been prepared by this procedure, with a molecular weight exceeding the previously reported results for analogous structures. Such molecular weights can be obtained in a reasonable reaction time (5 days) using low concentrations of an N-heterocyclic carbene-coordinated Ni complex. The polymerization kinetics suggested a chain-growth mechanism with a chain transfer step. The latter is caused most likely by a bimolecular interaction of the Ni-species at the polymer chain ends.
    Keywords Suzuki reaction ; boronic acids ; catalysts ; catalytic activity ; heterocyclic nitrogen compounds ; molecular weight ; polymerization ; polystyrenes
    Language English
    Dates of publication 2022-0627
    Size p. 5361-5370.
    Publishing place American Chemical Society
    Document type Article
    ZDB-ID 1491942-4
    ISSN 1520-5835 ; 0024-9297
    ISSN (online) 1520-5835
    ISSN 0024-9297
    DOI 10.1021/acs.macromol.2c00599
    Database NAL-Catalogue (AGRICOLA)

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  8. Book ; Online ; Thesis: Ultrahigh Molecular Weight Polypropylene

    Stieglitz, Lucas [Verfasser] / Rieger, Bernhard [Akademischer Betreuer] / Nilges, Tom [Gutachter] / Rieger, Bernhard [Gutachter]

    Synthesis and Processing of a High-Performance Polymer

    2023  

    Author's details Lucas Stieglitz ; Gutachter: Tom Nilges, Bernhard Rieger ; Betreuer: Bernhard Rieger
    Keywords Technische Chemie ; Technical Chemistry
    Subject code sg660
    Language English
    Publisher Universitätsbibliothek der TU München
    Publishing place München
    Document type Book ; Online ; Thesis
    Database Digital theses on the web

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  9. Book ; Online ; Thesis: Innovative Synthesis of Carbon Fiber Precursors and Epoxy Thermosets: Advances Towards Sustainable Fiber Composite Materials

    Breitsameter, Jonas Martin Verfasser] / [Rieger, Bernhard [Akademischer Betreuer] / Brück, Thomas Gutachter] / [Rieger, Bernhard [Gutachter]

    2023  

    Author's details Jonas Martin Breitsameter ; Gutachter: Thomas Brück, Bernhard Rieger ; Betreuer: Bernhard Rieger
    Keywords Technische Chemie ; Technical Chemistry
    Subject code sg660
    Language English
    Publisher Universitätsbibliothek der TU München
    Publishing place München
    Document type Book ; Online ; Thesis
    Database Digital theses on the web

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  10. Article ; Online: Modular silacyclopropenes: synthesis and application for Si-H containing substrate functionalization.

    Nobis, Matthias / Inoue, Shigeyoshi / Rieger, Bernhard

    Chemical communications (Cambridge, England)

    2022  Volume 58, Issue 79, Page(s) 11159–11162

    Abstract: A method to functionalize Si-H containing substrates with vinyl substituted silacyclopropenes has been developed. This provides an efficient and versatile technique to generate multi-functional silacyclopropene derivatives, ranging from small molecules ... ...

    Abstract A method to functionalize Si-H containing substrates with vinyl substituted silacyclopropenes has been developed. This provides an efficient and versatile technique to generate multi-functional silacyclopropene derivatives, ranging from small molecules to polymeric materials like polysiloxanes. Thus, access is given to a new class of functionalized materials that exhibits potential in a variety of possible applications.
    MeSH term(s) Polymers ; Siloxanes
    Chemical Substances Polymers ; Siloxanes
    Language English
    Publishing date 2022-10-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/d2cc04565f
    Database MEDical Literature Analysis and Retrieval System OnLINE

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