Personal

Laboratory chemist in the Karst group

Topics/Services

Sample preparation
Elemental analysis
Total reflection X-ray fluorescence (TXRF)
Mikro X-ray fluorescence (µXRF)
Laser ablation (LA)
Inductively coupled plasma with optical emission spectrometry (ICP-OES)
Inductively coupled plasma with mass spectrometry (ICP-MS)
Atomic absorbance spectrometry (AAS)

ResearcherID: B-2159-2017

2025

Peivandi, Armin Darius, Holtkamp, Michael, Rave, Hennes, Linsen, Lars, Martens, Sven, Müller, Klaus-Michael, Karst, Uwe, and Martens, Sabrina. 2025. “Rapid versus slow degeneration and complications of biomaterials in patients with congenital heart disease.” Cardiovascular Pathology 75. doi: 10.1016/j.carpath.2024.107712.

2022

Buchholz, R, Krossa, S, Andersen, MK, Holtkamp, M, Sperling, M, Karst, U, and Tessem, MB. 2022. “A simple preparation protocol for shipping and storage of tissue sections for laser ablation-inductively coupled plasma-mass spectrometry imaging.” Metallomics 14 (3): mfac013.. doi: 10.1093/mtomcs/mfac013.

2020

Lützen, E, Holtkamp, M, Stamme, I, Schmid, R, Sperling, M, Pütz, M, and Karst, U. 2020. “Multimodal imaging of hallucinogens 25C- and 25I-NBOMe on blotter papers.” Drug Testing and Analysis 12: 465–471. doi: 10.1002/dta.2751.
Beil, SB, Breiner, M, Schulz, L, Schüll, A, Müller, T, Schollmeyer, D, Bomm, A, Holtkamp, M, Karst, U, Schade, W, and Waldvogel, SR. 2020. “About the selectivity and reactivity of active nickelelectrodes in C–C coupling reactions.” RSC Advances 10 (24): 14249–14253. doi: 10.1039/d0ra02673e.

2019

Raman, SP, Keil, C, Dieringer, P, Hubner, C, Bueno, A, Gurikov, P, Nissen, J, Holtkamp, M, Karst, U, and Haase, H. 2019. “Alginate aerogels carrying calcium, zinc and silver cations for wound care: Fabrication and metal detection.” Journal of Supercritical Fluids 153: 104545.. doi: 10.1016/j.superflu.2019.104545.

2018

Gütz, C., Grimaudo, V., Holtkamp, M., Hartmer, M., Werra, J., Frensemeier, L., Kehl, A., Karst, U., Broekmann, P., and Waldvogel, S. 2018. “Leaded Bronze: An Innovative Lead Substitute for Cathodic Electrosynthesis.” ChemElectroChem 5 (2): 247–252. doi: 10.1002/celc.201701061.
Beil, SB, Mueller, T, Sillart, SB, Franzmann, P, Bomm, A, Holtkamp, M, Karst, U, Schade, W, and Waldvogel, SR. 2018. “Active Molybdenum-Based Anode for Dehydrogenative Coupling Reactions.” Angewandte Chemie International Edition 57 (9): 2450–2454. doi: 10.1002/anie.201712718.
Traeger, L, Gallitz, I, Sekhri, R, Baeumer, N, Kuhlmann, T, Kemming, C, Holtkamp, M, Mueller, J, Karst, U, Canonne-Hergaux, F, Muckenthaler, MU, Bloch, DB, Olschewski, A, Bartnikas, TB, and Steinbicker, AU. 2018. “ALK3 undergoes ligand-independent homodimerization and BMP-induced heterodimerization with ALK2.” Free Radical Biology and Medicine 129: 127–137. doi: 10.1016/j.freeradbiomed.2018.09.021.
OetermannS, R, Vivod, S, Hiessl, J, Hogeback, M, Holtkamp, U, Karst, and A, Steinbuechel. 2018. “Histidine at Position 195 is Essential for Association of Heme-b in Lcp1(VH2).” Earth Systems and Environment 2 (1): 5–14. doi: 10.1007/s41748-018-0041-2.

2017

Thyssen, GM; Holtkamp, M; Kaulfürst-Soboll, H; Wehe, CA; Sperling, M; von Schaewen, A; Karst, U. 2017. “Elemental bioimaging by means of LA-ICP-OES: investigation of the calcium, sodium and potassium distribution in tobacco plant stems and leaf petioles.” Metallomics 9 (6): 587–804. doi: 10.1039/c7mt00003k.
Dierkes, T., Seidel, S., Benndorf, C., Heletta, L., de Oliveira, Junior M., Holtkamp, M., Karst, U., Block, T., Jüstel, T., Eckert, H., and Pöttgen, R. 2017. “Mixed europium valence in Eu0.937Ba8[BN2]6 – Structure and spectroscopic behavior.” Solid State Sciences 70 (null): 86–92. doi: 10.1016/j.solidstatesciences.2017.06.002.
Vásquez-Céspedes, S., Holtkamp, M., Karst, U., and Glorius, F. 2017. “Reusable and Magnetic Palladium and Copper Oxide Catalysts in Direct ortho and meta Arylation of Anilide Derivatives.” SYNLETT 28 (null): 2754–2759. doi: 10.1055/s-0036-1589007.

2016

Birka, M., Roscher, J., Holtkamp, M., Sperling, M., and Karst, U. 2016. “Investigating the stability of gadolinium based contrast agents towards UV radiation.” Water Research 91 (null): 244–250. doi: 10.1016/j.watres.2016.01.012.

2015

Ricciardi, R., Huskens, J., Holtkamp, M., Karst, U., and Verboom, W. 2015. “Dendrimer-encapsulated palladium nanoparticles for continuous-flow Suzuki-Miyaura cross-coupling reactions.” ChemCatChem 7 (6): 936–942. doi: 10.1002/cctc.201500017.

2014

Wehe, CA, Pieper, I, Holtkamp, M, Thyssen, GM, Sperling, M, Schwerdtle, T, and Karst, U. 2014. “On-line species-unspecific isotope dilution analysis in the picomolar range reveals the time- and species-depending mercury uptake in human astrocytes.” Analytical and Bioanalytical Chemistry 406 (7): 1909–16. doi: 10.1007/s00216-013-7608-4.
Nowak, S, Gesell, M, Holtkamp, M, Sperling, M, Karst, U, and Buscher, W. 2014. “Low Gas Flow Inductively Coupled Plasma Optical Emission Spectrometry for the Analysis of Food Samples after Microwave Digestion.” Talanta 129: 575–578. doi: 10.1016/j.talanta.2014.06.045.
Pieper, I., Wehe, C., Bornhorst, J., Ebert, F., Leffers, L., Holtkamp, M., Höseler, P., Weber, T., Mangerich, A., Bürkle, A., Karst, U., and Schwerdtle, T. 2014. “Mechanisms of Hg species induced toxicity in cultured human astrocytes: Genotoxicity and DNA-damage response.” Metallomics 6 (3): 662–671. doi: 10.1039/c3mt00337j.

2013

Hoerr, V., Tuchscherr, L., Huve, J., Nippe, N., Loser, K., Glyvuk, N., Tsytsyura, Y., Holtkamp, M., Sunderkotter, C., Karst, U., Klingauf, J., Peters, G., Loffler, B., and Faber, C. 2013. “Bacteria tracking by in vivo magnetic resonance imaging.” BMC Biology 11 (63). doi: 10.1186/1741-7007-11-63.
Holtkamp, M, Elseberg, T, Wehe, CA, Sperling, M, and Karst, U. 2013. “Complexation and oxidation strategies for improved TXRF determination of mercury in vaccines.” J. Anal. At. Spectrom. 28: 719–723. doi: 10.1039/C3JA00002H.
Stange, R., Kronenberg, D., Timmen, M., Everding, J., Hidding, H., Eckes, B., Hansen, U., Holtkamp, M., Karst, U., Pap, T., and Raschke, M.J. 2013. “Age-related bone deterioration is diminished by disrupted collagen sensing in integrin α2β1 deficient mice.” Bone 56 (1): 48–54. doi: 10.1016/j.bone.2013.05.003.
Munirathinam, R., Ricciardi, R., Egberink, R., Huskens, J., Holtkamp, M., Wormeester, H., Karst, U., and Verboom, W. 2013. “Gallium-containing polymer brush film as efficient supported Lewis acid catalyst in a glass microreactor.” Beilstein Journal of Organic Chemistry 9 (null): 1698–1704. doi: 10.3762/bjoc.9.194.

2012

Holtkamp, M, Wehe, CA, Blaske, F, Holtschulte, C, Sperling, M, and Karst, U. 2012. “Nitrogen purged TXRF for the quantification of silver and palladium.” Journal of Analytical Atomic Spectrometry 27: 1799–1802. doi: 10.1039/c2ja30117b.

2011

Wehe, CA, Bornhorst, J, Holtkamp, M, Sperling, M, Galla, H-J, Schwerdtle, T, and Karst, U. 2011. “Fast and low sample consuming quantification of manganese in cell nutrient solutions by flow injection ICP-QMS.” Metallomics 3 (12): 1291–1296. doi: 10.1039/c1mt00170a.
Petroutsos, D, Busch, A, Janssen, I, Trompelt, K, Bergner, SV, Weinl, S, Holtkamp, M, Karst, U, Kudla, J, and Hippler, M. 2011. “THE CHLOROPLAST CALCIUM SENSOR CAS IS REQUIRED FOR PHOTOPROTECTION IN CHLAMYDOMONAS REINHARDTII.” European Journal of Phycology 46: 85.. doi: 10.1080/09670262.2011.613190.
Petroutsos, D, Busch, A, Janssen, I, Trompelt, K, Bergner, SV, Weinl, S, Holtkamp, M, Karst, U, Kudla, J, and Hippler, M. 2011. “The Chloroplast Calcium Sensor CAS Is Required for Photoacclimation in Chlamydomonas reinhardtii.” The Plant cell 23 (8): 2950–2963. doi: 10.1105/tpc.111.087973.
Telgmann, L., Holtkamp, M., Künnemeyer, J., Gelhard, C., Hartmann, M., Klose, A., Sperling, M., and Karst, U. 2011. “Simple and rapid quantification of gadolinium in urine and blood plasma samples by means of total reflection X-ray fluorescence (TXRF).” Metallomics 3 (10): 1035–1040. doi: 10.1039/c1mt00054c.

2010

Lux, SF, Nowak, S, Terborg, L, Holtkamp, M, Kramer, E, Schappacher, FM, Rodehorst, U, Gallasch, TW, Meyer, HW, Karst, U, and Winter, M. 2010. “Application of LA-ICP-MS/LA-ICP-OES and ICP-OES for the determination of impurities in Li-Ion battery compounds.” Electrochemical Society - 218th ECS Meeting Abstracts 2010, MA 2010-02 1: 66.
Ciarimboli, G, Deuster, D, Knief, A, Sperling, M, Holtkamp, M, Edemir, B, Pavenstädt, H, Lanvers-Kaminsky, C, am, Zehnhoff-Dinnesen A, Schinkel, AH, Koepsell, H, Jürgens, H, and Schlatter, E. 2010. “Organic cation transporter 2 mediates cisplatin-induced oto- and nephrotoxicity and is a target for protective interventions.” American Journal of Pathology 176 (3): 1169–1180. doi: 10.2353/ajpath.2010.090610.
Wilken, A, Janzen, R, Holtkamp, M, Nowak, S, Sperling, M, Vogel, M, and Karst, U. 2010. “Investigation of the interaction of Mercurochrome® constituents with proteins using liquid chromatography/mass spectrometry.” Analytical and Bioanalytical Chemistry 397 (8): 3525–3532. doi: 10.1007/s00216-010-3842-1.