Walter, Johannes

2025

• Wedler V., Stiegler L., Gandziarowski T., Walter J., Peukert W., Distel L., Hirsch A., Klein S.:
  Shell-by-Shell functionalized nanoparticles as radiosensitizers and radioprotectors in radiation therapy of cancer cells and tumor spheroids
  In: Colloids and Surfaces B: Biointerfaces 245 (2025), Article No.: 114276
  ISSN: 0927-7765
  DOI: 10.1016/j.colsurfb.2024.114276

2024

• Akyüz Ö., Brodhag M., Lautenbach V., Krumova M., Onishchukov G., Walter J., Gavira JA., Cölfen H.:
  Hydrolase and Peroxidase Activity of Gold Nanocluster Composites with Lysozyme and Cross-Linked Lysozyme Crystals
  In: ACS Applied Nano Materials (2024)
  ISSN: 2574-0970
  DOI: 10.1021/acsanm.4c04696
• Lautenbach V., Onishchukov G., Wawra S., Frank U., Hartmann L., Peukert W., Walter J.:
  Development of an advanced multiwavelength emission detector for the analytical ultracentrifuge
  In: Nanoscale Advances (2024)
  ISSN: 2516-0230
  DOI: 10.1039/d3na00980g
• Lucherelli MA., Stiegler L., Steiger F., Åhlgren EH., Requena-Ramírez J., Castro E., Echegoyen L., Hirsch A., Peukert W., Kotakoski J., Walter J., Perez-Ojeda Rodriguez ME., Abellán G.:
  Carbon nano-onions: Individualization and enhanced water dispersibility
  In: Carbon 218 (2024), p. 118760
  ISSN: 0008-6223
  DOI: 10.1016/j.carbon.2023.118760
• Traore N., Schikarski T., Cardenas Lopez P., Körner A., Cardenas Lopez P., Hartmann L., Fritsch B., Walter J., Hutzler A., Pflug L., Peukert W.:
  Mechanistic insights into silver-gold nanoalloy formation by two-dimensional population balance modeling
  In: Chemical Engineering Journal 483 (2024), Article No.: 149429
  ISSN: 1385-8947
  DOI: 10.1016/j.cej.2024.149429
• Wang Z., Wegner KD., Stiegler L., Zhou X., Rezvani A., Odungat AS., Apeleo Zubiri B., Wu M., Spiecker E., Walter J., Resch-Genger U., Segets D.:
  Optimizing the Shelling Process of InP/ZnS Quantum Dots Using a Single-Source Shell Precursor: Implications for Lighting and Display Applications
  In: ACS Applied Nano Materials (2024)
  ISSN: 2574-0970
  DOI: 10.1021/acsanm.4c05265
• Wolf A., Zhou H., Groppe P., Stiegler L., Kämäräinen T., Peukert W., Walter J., Wintzheimer S., Mandel K.:
  Nanoparticle Clustering in Supraparticles to Control Magnetic Long-Range Interactions
  In: Particle & Particle Systems Characterization (2024), Article No.: 2400180
  ISSN: 0934-0866
  DOI: 10.1002/ppsc.202400180

2023

• Baer A., Wawra S., Bielmeier K., Uttinger M., Smith DM., Peukert W., Walter J., Smith AK.:
  The Stokes–Einstein–Sutherland Equation at the Nanoscale Revisited
  In: Small (2023)
  ISSN: 1613-6829
  DOI: 10.1002/smll.202304670
• Biegel M., Schikarski T., Cardenas Lopez P., Gromotka L., Lübbert C., Völkl A., Damm C., Walter J., Peukert W.:
  Efficient quenching sheds light on early stages of gold nanoparticle formation
  In: RSC Advances 13 (2023), p. 18001-18013
  ISSN: 2046-2069
  DOI: 10.1039/d3ra02195e
• Brune SE., Hoppenreijs LJ., Kuehl T., Lautenbach V., Walter J., Peukert W., Schwarz K., Imhof D., Boom RM., Krull R., Keppler JK., Biedendieck R.:
  Precision fermentation as a route to modify β-lactoglobulin structure through substitution of specific cysteine residues
  In: International Dairy Journal 147 (2023), Article No.: 105772
  ISSN: 0958-6946
  DOI: 10.1016/j.idairyj.2023.105772
• Frank U., Dienstbier J., Tischer F., Wawra S., Gromotka L., Walter J., Liers-Bergmann F., Peukert W.:
  Multidimensional Fractionation of Particles
  In: Separations 10 (2023), Article No.: 252
  ISSN: 2297-8739
  DOI: 10.3390/separations10040252
• Frank U., Drobek D., Sánchez-Iglesias A., Wawra S., Nees N., Walter J., Pflug L., Apeleo Zubiri B., Spiecker E., Liz-Marzan LM., Peukert W.:
  Determination of 2D Particle Size Distributions in Plasmonic Nanoparticle Colloids via Analytical Ultracentrifugation: Application to Gold Bipyramids.
  In: ACS nano (2023)
  ISSN: 1936-0851
  DOI: 10.1021/acsnano.2c12257
• Lübbert C., Supper M., Kaspereit M., Walter J., Peukert W.:
  Single-Molecule Pycnometry and Shape Analysis of Ions in the Gas Phase
  In: Analytical Chemistry (2023)
  ISSN: 0003-2700
  DOI: 10.1021/acs.analchem.3c00625
• Traore N., Uttinger M., Cardenas Lopez P., Drobek D., Gromotka L., Schmidt J., Walter J., Apeleo Zubiri B., Spiecker E., Peukert W.:
  Green room temperature synthesis of silver-gold alloy nanoparticles
  In: Nanoscale Advances (2023)
  ISSN: 2516-0230
  DOI: 10.1039/d2na00793b
• Wang Z., Traore N., Schikarski T., Stiegler L., Drobek D., Apeleo Zubiri B., Spiecker E., Walter J., Peukert W., Pflug L., Segets D.:
  Population balance modeling of InP quantum dots: Experimentally enabled global optimization to identify unknown material parameters
  In: Chemical Engineering Science 281 (2023), Article No.: 119062
  ISSN: 0009-2509
  DOI: 10.1016/j.ces.2023.119062
• Wolf A., Zink A., Stiegler L., Branscheid R., Apeleo Zubiri B., Müssig S., Peukert W., Walter J., Spiecker E., Mandel K.:
  Magnetic in situ determination of surface coordination motifs by utilizing the degree of particle agglomeration
  In: Journal of Colloid and Interface Science (2023), p. 633-643
  ISSN: 0021-9797
  DOI: 10.1016/j.jcis.2023.05.182

2022

• Cardenas Lopez P., Uttinger M., Traore N., Khan H., Drobek D., Apeleo Zubiri B., Spiecker E., Pflug L., Peukert W., Walter J.:
  Multidimensional characterization of noble metal alloy nanoparticles by multiwavelength analytical ultracentrifugation
  In: Nanoscale (2022)
  ISSN: 2040-3364
  DOI: 10.1039/d2nr02633c
• Distaso M., Lautenbach V., Uttinger M., Walter J., Lübbert C., Thajudeen T., Peukert W.:
  A widely applicable method to stabilize nanoparticles comprising oxygen-rich functional groups
  In: Powder Technology 407 (2022), Article No.: 117633
  ISSN: 0032-5910
  DOI: 10.1016/j.powtec.2022.117633
• Jung D., Uttinger M., Malgaretti P., Peukert W., Walter J., Harting J.:
  Hydrodynamic simulations of sedimenting dilute particle suspensions under repulsive DLVO interactions
  In: Soft Matter 18 (2022), p. 2157-2167
  ISSN: 1744-683X
  DOI: 10.1039/d1sm01294k
• Meincke T., Walter J., Pflug L., Thajudeen T., Völkl A., Cardenas Lopez P., Uttinger M., Stingl M., Watanabe S., Peukert W., Klupp Taylor R.:
  Determination of the yield, mass and structure of silver patches on colloidal silica using multiwavelength analytical ultracentrifugation
  In: Journal of Colloid and Interface Science 607 (2022), p. 698-710
  ISSN: 0021-9797
  DOI: 10.1016/j.jcis.2021.08.161
  URL: https://www.researchgate.net/publication/354270035_Determination_of_the_yield_mass_and_structure_of_silver_patches_on_colloidal_silica_using_multiwavelength_analytical_ultracentrifugation
• Rey M., Walter J., Harrer J., Perez CM., Chiera S., Nair S., Ickler M., Fuchs A., Michaud M., Uttinger M., Schofield AB., Thijssen JHJ., Distaso M., Peukert W., Vogel N.:
  Versatile strategy for homogeneous drying patterns of dispersed particles
  In: Nature Communications 13 (2022)
  ISSN: 2041-1723
  DOI: 10.1038/s41467-022-30497-z
• Uttinger M., Hundschell CS., Lautenbach V., Pusara S., Bather S., Heyn TR., Keppler JK., Wenzel W., Walter J., Kozlowska M., Wagemans AM., Peukert W.:
  Determination of specific and non-specific protein-protein interactions for beta-lactoglobulin by analytical ultracentrifugation and membrane osmometry experiments
  In: Soft Matter (2022)
  ISSN: 1744-683X
  DOI: 10.1039/d2sm00908k
• Uttinger M., Hundschell CS., Lautenbach V., Pusara S., Bather S., Heyn TR., Keppler JK., Wenzel W., Walter J., Kozlowska M., Wagemans AM., Peukert W.:
  Determination of specific and non-specific protein-protein interactions for beta-lactoglobulin by analytical ultracentrifugation and membrane osmometry experiments
  In: Soft Matter (2022)
  ISSN: 1744-683X
  DOI: 10.1039/d2sm00908k

2021

• Hegetschweiler A., Jochem AR., Zimmermann A., Walter J., Staudt T., Kraus T.:
  Colloidal Analysis of Particles Extracted from Microalloyed Steels
  In: Particle & Particle Systems Characterization (2021)
  ISSN: 0934-0866
  DOI: 10.1002/ppsc.202000236
• Uttinger M., Jung WDK., Dao TQN., Canziani H., Lübbert C., Vogel N., Peukert W., Harting J., Walter J.:
  Probing sedimentation non-ideality of particulate systems using analytical centrifugation
  In: Soft Matter (2021)
  ISSN: 1744-683X
  DOI: 10.1039/D0SM01805H

2020

• Lin W., Greve C., Härtner S., Götz K., Walter J., Wu M., Rechberger S., Spiecker E., Busch S., Schmutzler T., Avadhut Y., Hartmann M., Unruh T., Peukert W., Segets D.:
  Unraveling Complexity: A Strategy for the Characterization of Anisotropic Core Multishell Nanoparticles
  In: Particle & Particle Systems Characterization (2020)
  ISSN: 0934-0866
  DOI: 10.1002/ppsc.202000145
• Rey M., Uttinger M., Peukert W., Walter J., Vogel N.:
  Probing particle heteroaggregation using analytical centrifugation
  In: Soft Matter 16 (2020), p. 3407-3415
  ISSN: 1744-683X
  DOI: 10.1039/D0SM00026D
• Uttinger M., Boldt S., Wawra S., Freiwald T., Damm C., Walter J., Lerche D., Peukert W.:
  New Prospects for Particle Characterization Using Analytical Centrifugation with Sector-Shaped Centerpieces
  In: Particle & Particle Systems Characterization (2020)
  ISSN: 0934-0866
  DOI: 10.1002/ppsc.202000108

2019

• Peukert W., Walter J.:
  Centrifugation | Analytical Ultracentrifugation
  In: Paul Worsfold, Colin Poole, Alan Townshend, Manuel Miró (ed.): Encyclopedia of Analytical Science, Elsevier, 2019, p. 372-382
  DOI: 10.1016/B978-0-12-409547-2.14528-7
• Peukert W., Walter J.:
  Specific Properties of Nanoparticles
  In: Ko Higashitani, Hisao Makino, Shuji Matsusaka (ed.): Powder Technology Handbook, Fourth Edition, CRC Press, 2019, p. 59-68
  DOI: 10.1201/b22268-8
• Uttinger M., Wawra S., Guckeisen T., Walter J., Bear A., Thajudeen T., Sherwood PJ., Smith AS., Wagemans AM., Stafford WF., Peukert W.:
  A Comprehensive Brownian Dynamics Approach for the Determination of Non-ideality Parameters from Analytical Ultracentrifugation
  In: Langmuir (2019)
  ISSN: 0743-7463
  DOI: 10.1021/acs.langmuir.9b01916
• Wawra S., Onishchukov G., Maranska M., Eigler S., Walter J., Peukert W.:
  A multiwavelength emission detector for analytical ultracentrifugation
  In: Nanoscale Advances (2019)
  ISSN: 2516-0230
  DOI: 10.1039/C9NA00487D

2018

• Klupp Taylor R., Meincke T., Sadafi FZ., Walter J., Pflug L., Watanabe S., Peukert W., Stingl M.:
  Anisometric engineering of particle interfaces: Multidimensional characterization and gram‐scale production
  ProcessNet‐Jahrestagung und 33. DECHEMA‐Jahrestagung der Biotechnologen 2018 (Aachen, 11. September 2018 - 13. September 2018)
  In: Chemie Ingenieur Technik (Special Issue: ProcessNet‐Jahrestagung und 33. DECHEMA‐Jahrestagung der Biotechnologen 2018), Weinheim: 2018
  DOI: 10.1002/cite.201855147
  URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/cite.201855147?af=R
• Pearson J., Walter J., Peukert W., Coelfen H.:
  Advanced Multiwavelength Detection in Analytical Ultracentrifugation
  In: Analytical Chemistry 90 (2018), p. 1280-1291
  ISSN: 0003-2700
  DOI: 10.1021/acs.analchem.7b04056
• Wawra S., Thoma M., Walter J., Lübbert C., Thajudeen T., Damm C., Peukert W.:
  Ionomer and protein size analysis by analytical ultracentrifugation and electrospray scanning mobility particle sizer
  In: European Biophysics Journal 47 (2018), p. 777-787
  ISSN: 0175-7571
  DOI: 10.1007/s00249-018-1314-2

2017

• Akdas T., Haderlein M., Walter J., Apeleo Zubiri B., Spiecker E., Peukert W.:
  Continuous synthesis of CuInS2 quantum dots
  In: RSC Advances 7 (2017), p. 10057-10063
  ISSN: 2046-2069
  DOI: 10.1039/c6ra27052b
• Nacken T., Halbig CE., Wawra S., Damm C., Romeis S., Walter J., Tehrani MJ., Hu Y., Ishii Y., Eigler S., Peukert W.:
  Structural factors controlling size reduction of graphene oxide in liquid processing
  In: Carbon 125 (2017), p. 360-369
  ISSN: 0008-6223
  DOI: 10.1016/j.carbon.2017.09.066
• Salaheldin AM., Walter J., Herre P., Levchuk I., Jabbari Y., Kolle J., Brabec C., Peukert W., Segets D.:
  Automated synthesis of quantum dot nanocrystals by hot injection: Mixing induced self-focusing
  In: Chemical Engineering Journal 320 (2017), p. 232-243
  ISSN: 0300-9467
  DOI: 10.1016/j.cej.2017.02.154
  URL: http://www.sciencedirect.com/science/article/pii/S1385894717303340
• Thajudeen T., Walter J., Srikantharajah R., Lübbert C., Peukert W.:
  Determination of the length and diameter of nanorods by a combination of analytical ultracentrifugation and scanning mobility particle sizer
  In: Nanoscale Horizons 2 (2017), p. 253-260
  ISSN: 2055-6756
  DOI: 10.1039/c7nh00050b
• Thajudeen T., Walter J., Uttinger M., Peukert W.:
  A Comprehensive Brownian Dynamics-Based Forward Model for Analytical (Ultra)Centrifugation
  In: Particle & Particle Systems Characterization 34 (2017), Article No.: 1600229
  ISSN: 0934-0866
  DOI: 10.1002/ppsc.201600229
• Uttinger M., Walter J., Thajudeen T., Wawra S., Peukert W.:
  Brownian dynamics simulations of analytical ultracentrifugation experiments exhibiting hydrodynamic and thermodynamic non-ideality
  In: Nanoscale 9 (2017), p. 17770-17780
  ISSN: 2040-3364
  DOI: 10.1039/c7nr06583c
• Walter J., Gorbet G., Akdas T., Segets D., Demeler B., Peukert W.:
  2D analysis of polydisperse core-shell nanoparticles using analytical ultracentrifugation
  In: Analyst 142 (2017), p. 206-217
  ISSN: 0003-2654
  DOI: 10.1039/c6an02236g

2016

• Halbig CE., Nacken T., Walter J., Damm C., Eigler S., Peukert W.:
  Quantitative investigation of the fragmentation process and defect density evolution of oxo-functionalized graphene due to ultrasonication and milling
  In: Carbon 96 (2016), p. 897-903
  ISSN: 0008-6223
  DOI: 10.1016/j.carbon.2015.10.021
• Lin W., Haderlein M., Walter J., Peukert W., Segets D.:
  Spectra library: An assumption-free in situ method to access the kinetics of catechols binding to colloidal ZnO quantum dots
  In: Angewandte Chemie International Edition 55 (2016), p. 932-935
  ISSN: 1433-7851
  DOI: 10.1002/anie.201508252
• Margraf J., Lodermeyer F., Strauß V., Haines P., Walter J., Peukert W., Costa RD., Clark T., Guldi DM.:
  Using carbon nanodots as inexpensive and environmentally friendly sensitizers in mesoscopic solar cells
  In: Nanoscale Horizons 1 (2016), p. 220-226
  ISSN: 2055-6756
  DOI: 10.1039/c6nh00010j
• Peukert W., Karabudak E., Brookes E., Lesnyak V., Gaponik N., Eychmüller A., Walter J., Segets D., Wohlleben W., Demeler B., Cölfen H.:
  Simultaneous Identification of Spectral Properties and Sizes of Multiple Particles in Solution with Subnanometer Resolution
  In: Angewandte Chemie-International Edition 55 (2016), p. 11770-11774
  ISSN: 1433-7851
  DOI: 10.1002/anie.201603844
• Peukert W., Nacken T., Walter J., Thajudeen T., Segets D., Sherwood P., Stafford W.:
  Multidimensional Nanoparticle Characterization by Means of Analytical Ultracentrifugation and Multiwavelength Detection
  In: Chemie Ingenieur Technik 88 (2016)
  ISSN: 0009-286X
  DOI: 10.1002/cite.201650214
• Peukert W., Walter J.:
  Dynamic range multiwavelength particle characterization using analytical ultracentrifugation.
  In: Nanoscale 8 (2016), p. 7484-95
  ISSN: 2040-3364
  DOI: 10.1039/c5nr08547k
• Walter J., Segets D., Peukert W.:
  Extension of the Deep UV-Capabilities in Multiwavelength Spectrometry in Analytical Ultracentrifugation: The Role of Oil Deposits
  In: Particle & Particle Systems Characterization 33 (2016), p. 184-189
  ISSN: 0934-0866
  DOI: 10.1002/ppsc.201500212

2015

• Akdas T., Walter J., Segets D., Distaso M., Winter B., Birajdar B., Spiecker E., Peukert W.:
  Investigation of the size-property relationship in CuInS2 quantum dots
  In: Nanoscale 7 (2015), p. 18105-18118
  ISSN: 2040-3364
  DOI: 10.1039/c5nr04291g
• Lin W., Walter J., Burger A., Maid H., Hirsch A., Peukert W., Segets D.:
  A General Approach To Study the Thermodynamics of Ligand Adsorption to Colloidal Surfaces Demonstrated by Means of Catechols Binding to Zinc Oxide Quantum Dots
  In: Chemistry of Materials 27 (2015), p. 358--369
  ISSN: 0897-4756
  DOI: 10.1021/cm504080d
• Nacken T., Damm C., Walter J., Rüger A., Peukert W.:
  Delamination of graphite in a high pressure homogenizer
  In: RSC Advances 5 (2015), p. 57328-57338
  ISSN: 2046-2069
  DOI: 10.1039/c5ra08643d
• Peukert W., Walter J., Lin W., Segets D., Sherwood P., Stafford W.:
  Simultaneous Analysis of Hydrodynamic and Optical Properties Using Analytical Ultracentrifugation Equipped with Multiwavelength Detection
  In: Analytical Chemistry 87 (2015), p. 3396--3403
  ISSN: 0003-2700
  DOI: 10.1021/ac504649c
• Peukert W., Wang W., Damm C., Walter J., Nacken T.:
  Photobleaching and stabilization of carbon nanodots produced by solvothermal synthesis.
  In: Physical Chemistry Chemical Physics 18 (2015), p. 466-475
  ISSN: 1463-9076
  DOI: 10.1039/c5cp04942c
• Schindler T., Walter J., Peukert W., Segets D., Unruh T.:
  In Situ Study on the Evolution of Multimodal Particle Size Distributions of ZnO Quantum Dots: Some General Rules for the Occurrence of Multimodalities
  In: Journal of Physical Chemistry B 119 (2015), p. 15370-15380
  ISSN: 1520-6106
  DOI: 10.1021/acs.jpcb.5b08005
• Toni F., Xing H., Walter J., Strauß V., Nacken T., Damm C., Wirth KE., Guldi DM., Peukert W.:
  Production of well dispersible single walled carbon nanotubes via a "floating catalyst"-method
  In: Chemical Engineering Science 138 (2015), p. 385-395
  ISSN: 0009-2509
  DOI: 10.1016/j.ces.2015.08.002
• Walter J., Thajudeen T., Süß S., Segets D., Peukert W.:
  New possibilities of accurate particle characterisation by applying direct boundary models to analytical centrifugation
  In: Nanoscale 7 (2015), p. 6574--6587
  ISSN: 2040-3364
  DOI: 10.1039/c5nr00995b

2014

• Strauß V., Margraf J., Dolle C., Butz B., Nacken T., Walter J., Bauer W., Peukert W., Spiecker E., Clark T., Guldi DM.:
  Carbon Nanodots: Toward a Comprehensive Understanding of Their Photoluminescence
  In: Journal of the American Chemical Society 136 (2014), p. 17308--17316
  ISSN: 0002-7863
  DOI: 10.1021/ja510183c
• Walter J., Löhr K., Karabudak E., Reis W., Mikhael J., Peukert W., Wohlleben W., Coelfen H.:
  Multidimensional Analysis of Nanoparticles with Highly Disperse Properties Using Multiwavelength Analytical Ultracentrifugation
  In: ACS nano 8 (2014), p. 8871--8886
  ISSN: 1936-0851
  DOI: 10.1021/nn503205k
• Walter J., Nacken T., Damm C., Thajudeen T., Eigler S., Peukert W.:
  Determination of the Lateral Dimension of Graphene Oxide Nanosheets Using Analytical Ultracentrifugation
  In: Small 11 (2014), p. 814--825
  ISSN: 1613-6829
  DOI: 10.1002/smll.201401940

2012

• Braunschweig B., Engelhardt K., Rumpel A., Walter J., Peukert W.:
  Protein adsorption at the electrified air-water interface: Implications on foam stability
  In: ACS National Meeting Book of Abstracts 244 (2012), Article No.: 562-COLL
  ISSN: 0065-7727
  (anderer)
• Engelhardt K., Rumpel A., Walter J., Dombrowski J., Kulozik U., Braunschweig B., Peukert W.:
  Protein adsorption at the electrified air-water interface: Implications on foam stability
  In: Langmuir 28 (2012), p. 7780-7787
  ISSN: 0743-7463
  DOI: 10.1021/la301368v
• Rumpel A., Novak M., Walter J., Braunschweig B., Halik M., Peukert W.:
  Tuning the molecular order of C-60 functionalized phosphonic acids
  In: ACS National Meeting Book of Abstracts 244 (2012)
  ISSN: 0065-7727
  (anderer)

2011

• Rumpel A., Novak M., Walter J., Braunschweig B., Halik M., Peukert W.:
  Tuning the Molecular Order of C60 Functionalized Phosphonic Acid Monolayers
  In: Langmuir 27 (2011), p. 15016 - 15023
  ISSN: 0743-7463
  DOI: 10.1021/la203916h
  URL: http://pubs.acs.org/doi/abs/10.1021/la203916h?prevSearch=%255BAllField%253A%2B%255BAllField%253A%2BTuning%2Bthe%2BMolecular%2BOrder%2Bof%2BC60%2BFunctionalized%2BPhosphonic%2BAcid%2BMonolayers%255D%255D&searchHistoryKey=