Works by Kuhnert, Nikolai

Results: 55

Schuster bleib bei deinen Leisten - bakterieller Zelltod durch Antibiotika ist nicht durch reaktive Sauerstoffspezies erklärbar.

Published in:

Angewandte Chemie, 2013, v. 125, n. 42, p. 11148, doi. 10.1002/ange.201304548

By:

Kuhnert, Nikolai

Publication type:

Article

Über die Chemie der Schokoladenherstellung.

Published in:

Nachrichten aus der Chemie, 2018, v. 66, p. 965, doi. 10.1002/nadc.20184070806

By:

Kuhnert, Nikolai;
d‘Souza, Roy

Publication type:

Article

Über die Chemie der Schokoladenherstellung.

Published in:

Nachrichten aus der Chemie, 2018, v. 66, n. 10, p. 965, doi. 10.1002/nadc.20184070806

By:

Kuhnert, Nikolai;
d‘Souza, Roy

Publication type:

Article

Discrete, Cationic Palladium(II)‐Oxo Clusters via f‐Metal Ion Incorporation and their Macrocyclic Host‐Guest Interactions with Sulfonatocalixarenes.

Published in:

Angewandte Chemie International Edition, 2022, v. 61, n. 25, p. 1, doi. 10.1002/anie.202203114

By:

Bhattacharya, Saurav;
Barba‐Bon, Andrea;
Zewdie, Tsedenia A.;
Müller, Anja B.;
Nisar, Talha;
Chmielnicka, Anna;
Rutkowska, Iwona A.;
Schürmann, Christian J.;
Wagner, Veit;
Kuhnert, Nikolai;
Kulesza, Pawel J.;
Nau, Werner M.;
Kortz, Ulrich

Publication type:

Article

Repeated oral administration modulates the pharmacokinetic behavior of the chemopreventive agent phenethyl isothiocyanate in rats.

Published in:

Molecular Nutrition & Food Research, 2010, v. 54, n. 3, p. 426, doi. 10.1002/mnfr.200900090

By:

Konsue, Nattaya;
Kirkpatrick, Jo;
Kuhnert, Nikolai;
King, Laurie J.;
Ioannides, Costas

Publication type:

Article

Was unter dem Hügel steckt.

Published in:

Nachrichten aus der Chemie, 2011, v. 59, n. 9, p. 866, doi. 10.1002/nadc.201190027

By:

Kuhnert, Nikolai

Publication type:

Article

Herbal Drugs from Sudan: Traditional Uses and Phytoconstituents.

Published in:

Pharmacognosy Reviews, 2017, v. 11, n. 22, p. 83, doi. 10.4103/phrev.phrev_15_15

By:

Karar, Mohamed Gamaleldin Elsadig;
Kuhnert, Nikolai

Publication type:

Article

Energy resolved mass spectrometry of chlorogenic acids and its application to isomer quantification by direct infusion tandem mass spectrometry.

Published in:

Phytochemical Analysis, 2018, v. 29, n. 4, p. 406, doi. 10.1002/pca.2770

By:

Hernandez, Javier;
Müller, Anja;
Jaiswal, Rakesh;
Davalos, Juan Z.;
Kuhnert, Nikolai

Publication type:

Article

Metabolome Comparison of Bioactive and Inactive Rhododendron Extracts and Identification of an Antibacterial Cannabinoid(s) from Rhododendron collettianum.

Published in:

Phytochemical Analysis, 2017, v. 28, n. 5, p. 454, doi. 10.1002/pca.2694

By:

Hakeem Said, Inamullah;
Rezk, Ahmed;
Hussain, Ishtiaq;
Grimbs, Anne;
Shrestha, Abhinandan;
Schepker, Hartwig;
Brix, Klaudia;
Ullrich, Matthias S.;
Kuhnert, Nikolai

Publication type:

Article

Identification and Characterisation of Phenolics from Ixora coccinea L. (Rubiaceae) by Liquid Chromatography Multi-stage Mass Spectrometry.

Published in:

Phytochemical Analysis, 2014, v. 25, n. 6, p. 567, doi. 10.1002/pca.2530

By:

Jaiswal, Rakesh;
Karar, Mohamed Gamaleldin Elsadig;
Gadir, Haidar Abdel;
Kuhnert, Nikolai

Publication type:

Article

Profiling the chlorogenic acids of aster by HPLC-MS<sup> n</sup>.

Published in:

Phytochemical Analysis, 2006, v. 17, n. 6, p. 384, doi. 10.1002/pca.935

By:

Clifford, Michael N.;
Zheng, Wang;
Kuhnert, Nikolai

Publication type:

Article

Cocoa bean fingerprinting via correlation networks.

Published in:

NPJ Science of Food, 2022, v. 6, n. 1, p. 1, doi. 10.1038/s41538-021-00120-4

By:

Kumar, Santhust;
D'Souza, Roy N.;
Corno, Marcello;
Ullrich, Matthias S.;
Kuhnert, Nikolai;
Hütt, Marc-Thorsten

Publication type:

Article

Antibacterial Activity Potential of Industrial Food Production Waste Extracts against Pathogenic Bacteria: Comparative Analysis and Characterization.

Published in:

Foods, 2024, v. 13, n. 12, p. 1902, doi. 10.3390/foods13121902

By:

Ziemah, James;
Ullrich, Matthias S.;
Kuhnert, Nikolai

Publication type:

Article

Modulation of hepatic cytochromes P450 and phase II enzymes by dietary doses of sulforaphane in rats: Implications for its chemopreventive activity.

Published in:

International Journal of Cancer, 2005, v. 117, n. 3, p. 356, doi. 10.1002/ijc.21191

By:

Yoxall, Victoria;
Kentish, Peter;
Coldham, Nick;
Kuhnert, Nikolai;
Sauer, Maurice J.;
Ioannides, Costas

Publication type:

Article

One Size Does Not Fit All-Bacterial Cell Death by Antibiotics Cannot Be Explained by the Action of Reactive Oxygen Species.

Published in:

Angewandte Chemie International Edition, 2013, v. 52, n. 42, p. 10946, doi. 10.1002/anie.201304548

By:

Kuhnert, Nikolai

Publication type:

Article

Rationalising the retro‐Diels‐Alder fragmentation pattern of viscutins using electrospray interface‐tandem mass spectrometry coupled to theoretical modelling.

Published in:

Rapid Communications in Mass Spectrometry: RCM, 2023, v. 37, n. 15, p. 1, doi. 10.1002/rcm.9592

By:

Moyo, Babra;
Novokoza, Yolanda;
Tavengwa, Nikita Tawanda;
Kuhnert, Nikolai;
Lobb, Kevin;
Madala, Ntakadzeni Edwin

Publication type:

Article

A Cold Case—Glucosinolate Levels in Kale Cultivars Are Differently Influenced by Cold Temperatures.

Published in:

Horticulturae, 2023, v. 9, n. 9, p. 953, doi. 10.3390/horticulturae9090953

By:

Hahn, Christoph;
Müller, Anja;
Kuhnert, Nikolai;
Albach, Dirk C.

Publication type:

Article

Stereo- and Enantioselective Reactions of Organosulfur Compounds Mediated by Transition Metal Complexes.

Published in:

Phosphorus, Sulfur & Silicon & the Related Elements, 1994, v. 95, n. 1-4, p. 367, doi. 10.1080/10426509408034239

By:

Schenk, Wolfdieter A.;
Bezler, Jürgen;
Burzlaff, Nicolai;
Dombrowski, Eberhard;
Frisch, Jürgen;
Kuhnert, Nikolai;
Reuther, Irene

Publication type:

Article

Comparative lipidomic studies of Scenedesmus sp. (Chlorophyceae) and Cylindrotheca closterium (Bacillariophyceae) reveal their differences in lipid production under nitrogen starvation.

Published in:

Journal of Phycology, 2019, v. 55, n. 6, p. 1246, doi. 10.1111/jpy.12887

By:

Wang, Song;
Sirbu, Diana;
Thomsen, Laurenz;
Kuhnert, Nikolai;
Ullrich, Matthias S.;
Thomsen, Claudia;
Li, Y.

Publication type:

Article

Chemistry inside molecular containers in the gas phase.

Published in:

Nature Chemistry, 2013, v. 5, n. 5, p. 376, doi. 10.1038/nchem.1618

By:

Lee, Tung-Chun;
Kalenius, Elina;
Lazar, Alexandra I.;
Assaf, Khaleel I.;
Kuhnert, Nikolai;
Grün, Christian H.;
Jänis, Janne;
Scherman, Oren A.;
Nau, Werner M.

Publication type:

Article

Lignin and Its Pathway-Associated Phytoalexins Modulate Plant Defense against Fungi.

Published in:

Journal of Fungi, 2023, v. 9, n. 1, p. 52, doi. 10.3390/jof9010052

By:

Ninkuu, Vincent;
Yan, Jianpei;
Fu, Zenchao;
Yang, Tengfeng;
Ziemah, James;
Ullrich, Matthias S.;
Kuhnert, Nikolai;
Zeng, Hongmei

Publication type:

Article

Bioactivity in Rhododendron: A Systemic Analysis of Antimicrobial and Cytotoxic Activities and Their Phylogenetic and Phytochemical Origins.

Published in:

Frontiers in Plant Science, 2017, p. 1, doi. 10.3389/fpls.2017.00551

By:

Grimbs, Anne;
Shrestha, Abhinandan;
Rezk, Ahmed S. D.;
Grimbs, Sergio;
Said, Inamullah Hakeem;
Schepker, Hartwig;
Hütt, Marc-Thorsten;
Albach, Dirk C.;
Brix, Klaudia;
Kuhnert, Nikolai;
Ullrich, Matthias S.

Publication type:

Article

Comparison of the polyphenolic profile and antibacterial activity of the leaves, fruits and flowers of Rhododendron ambiguum and Rhododendron cinnabarinum.

Published in:

BMC Research Notes, 2017, v. 10, p. 1, doi. 10.1186/s13104-017-2601-1

By:

Shrestha, Abhinandan;
Rezk, Ahmed;
Said, Inamullah Hakeem;
von Glasenapp, Victoria;
Smith, Rachelle;
Ullrich, Matthias S.;
Schepker, Hartwig;
Kuhnert, Nikolai

Publication type:

Article

Understanding the fragmentation of glucose in mass spectrometry.

Published in:

Journal of Mass Spectrometry, 2023, v. 58, n. 10, p. 1, doi. 10.1002/jms.4972

By:

Patras, Maria A.;
Davalos, Juan Z.;
Kuhnert, Nikolai

Publication type:

Article

Unbiased and biased chemometric analysis of LC‐MS data from human urine following coffee intake.

Published in:

Journal of Mass Spectrometry, 2023, v. 58, n. 10, p. 1, doi. 10.1002/jms.4971

By:

Said, Inamullah Hakeem;
Truex, Johnathan Douglas;
Haka, Sara;
Petrov, Dimitar D.;
Kuhnert, Nikolai

Publication type:

Article

Investigation of isomeric flavanol structures in black tea thearubigins using ultraperformance liquid chromatography coupled to hybrid quadrupole/ion mobility/time of flight mass spectrometry.

Published in:

Journal of Mass Spectrometry, 2014, v. 49, n. 11, p. 1086, doi. 10.1002/jms.3406

By:

Yassin, Ghada H.;
Grun, Christian;
Koek, Jean H.;
Assaf, Khaleel I.;
Kuhnert, Nikolai

Publication type:

Article

The inhibition of the mammalian DNA methyltransferase 3a (Dnmt3a) by dietary black tea and coffee polyphenols.

Published in:

BMC Bioinformatics, 2011, v. 12, n. 1, p. 103, doi. 10.1186/1471-2105-12-103

By:

Rajavelu, Arumugam;
Tulyasheva, Zumrad;
Jaiswal, Rakesh;
Jeltsch, Albert;
Kuhnert, Nikolai

Publication type:

Article

Discrete, Cationic Palladium(II)‐Oxo Clusters via f‐Metal Ion Incorporation and their Macrocyclic Host‐Guest Interactions with Sulfonatocalixarenes.

Published in:

Angewandte Chemie, 2022, v. 134, n. 25, p. 1, doi. 10.1002/ange.202203114

By:

Bhattacharya, Saurav;
Barba‐Bon, Andrea;
Zewdie, Tsedenia A.;
Müller, Anja B.;
Nisar, Talha;
Chmielnicka, Anna;
Rutkowska, Iwona A.;
Schürmann, Christian J.;
Wagner, Veit;
Kuhnert, Nikolai;
Kulesza, Pawel J.;
Nau, Werner M.;
Kortz, Ulrich

Publication type:

Article

Biological activities of Ficus carica latex for potential therapeutics in Human Papillomavirus (HPV) related cervical cancers.

Published in:

Scientific Reports, 2019, v. 9, n. 1, p. 1, doi. 10.1038/s41598-018-37665-6

By:

Ghanbari, Arshia;
Le Gresley, Adam;
Naughton, Declan;
Kuhnert, Nikolai;
Sirbu, Diana;
Ashrafi, G. Hossein

Publication type:

Article

LC–MS Characterization and Quantification of Known and Unknown (Poly)phenol Metabolites—Possible Pitfalls and Their Avoidance.

Published in:

Molecular Nutrition & Food Research, 2022, v. 66, n. 21, p. 1, doi. 10.1002/mnfr.202101013

By:

Clifford, Michael N.;
Kuhnert, Nikolai

Publication type:

Article

A Practitioner's Dilemma Mass Spectrometry‐Based Annotation and Identification of Human Plasma and Urinary Polyphenol Metabolites.

Published in:

Molecular Nutrition & Food Research, 2022, v. 66, n. 21, p. 1, doi. 10.1002/mnfr.202100985

By:

Kuhnert, Nikolai;
Clifford, Michael N.

Publication type:

Article

Microwave-Assisted Reactions in Organic Synthesis-Are There Any Nonthermal Microwave Effects?

Published in:

Angewandte Chemie International Edition, 2002, v. 41, n. 11, p. 1863, doi. 10.1002/1521-3773(20020603)41:11<1863::AID-ANIE1863>3.0.CO;2-L

By:

Kuhnert, Nikolai

Publication type:

Article

Polyphenole: Vielseitige Pflanzeninhaltsstoffe.

Published in:

Chemie in unserer Zeit, 2013, v. 47, n. 2, p. 80, doi. 10.1002/ciuz.201300589

By:

Kuhnert, Nikolai

Publication type:

Article

Hundert Jahre Aspirin®.

Published in:

Chemie in unserer Zeit, 1999, v. 33, n. 4, p. 213, doi. 10.1002/ciuz.19990330406

By:

Kuhnert, Nikolai

Publication type:

Article

The design and synthesis of acrylato and imino derivatives of calix[4]arene for applications in static and dynamic combinatorial libraries.

Published in:

Journal of Chemical Research, 2010, v. 34, n. 2, p. 61, doi. 10.3184/030823410X12627159407690

By:

Le-Gresley, Adam;
Kuhnert, Nikolai

Publication type:

Article

Changes in the fucoxanthin production and protein profiles in <italic>Cylindrotheca closterium</italic> in response to blue light-emitting diode light.

Published in:

Microbial Cell Factories, 2018, v. 17, n. 1, p. N.PAG, doi. 10.1186/s12934-018-0957-0

By:

Wang, Song;
Verma, Sujit K.;
Hakeem Said, Inamullah;
Thomsen, Laurenz;
Ullrich, Matthias S.;
Kuhnert, Nikolai

Publication type:

Article

Synthesis, self-association and chiroselectivity of isotopically labeled trianglamine macrocycles in the ion trap mass spectrometer.

Published in:

Journal of Labelled Compounds & Radiopharmaceuticals, 2007, v. 50, n. 13, p. 1215, doi. 10.1002/jlcr.1449

By:

Kuhnert, Nikolai;
Le-Gresley, Adam;
Nicolau, Daniel C.;
Lopez-Periago, Ana

Publication type:

Article

Synthesis of 1, 1′, 2, 2′, 3, 3′, 4, 4′ - octadeutero-sulforaphane.

Published in:

Journal of Labelled Compounds & Radiopharmaceuticals, 2004, v. 47, n. 8, p. 501, doi. 10.1002/jlcr.833

By:

Kuhnert, Nikolai;
Lu, Ye

Publication type:

Article

An investigation into the use of Raman microscopy for the detection of labelled compounds in living human cells.

Published in:

Journal of Labelled Compounds & Radiopharmaceuticals, 2004, v. 47, n. 8, p. 493, doi. 10.1002/jlcr.832

By:

Kuhnert, Nikolai;
Thumser, Alfred

Publication type:

Article

Synthesis of <sup>14</sup>C-labelled sulforaphane.

Published in:

Journal of Labelled Compounds & Radiopharmaceuticals, 2001, v. 44, n. 5, p. 347, doi. 10.1002/jlcr.462

By:

Kuhnert, Nikolai;
Holst, Birgit;
Williamson, Gary

Publication type:

Article

Promiscuity in Polyphenol–Protein Interactions—Monitoring Protein Conformational Change upon Polyphenol–Protein Binding by Nano-Differential Fluorimetry (Nano-DSF).

Published in:

Molecules, 2025, v. 30, n. 4, p. 965, doi. 10.3390/molecules30040965

By:

Schmidt, Dorothea;
Wohlers, Amelie;
Kuhnert, Nikolai

Publication type:

Article

Identification and characterization of proanthocyanidins of 16 members of the Rhododendron genus ( Ericaceae) by tandem LC-MS.

Published in:

Journal of Mass Spectrometry, 2012, v. 47, n. 4, p. 502, doi. 10.1002/jms.2954

By:

Jaiswal, Rakesh;
Jayasinghe, Lalith;
Kuhnert, Nikolai

Publication type:

Article

How to distinguish between cinnamoylshikimate esters and chlorogenic acid lactones by liquid chromatography-tandem mass spectrometry.

Published in:

Journal of Mass Spectrometry, 2011, v. 46, n. 9, p. 933, doi. 10.1002/jms.1972

By:

Jaiswal, Rakesh;
Matei, Marius Febi;
Ullrich, Frank;
Kuhnert, Nikolai

Publication type:

Article

How to identify and discriminate between the methyl quinates of chlorogenic acids by liquid chromatography-tandem mass spectrometry.

Published in:

Journal of Mass Spectrometry, 2011, v. 46, n. 3, p. 269, doi. 10.1002/jms.1889

By:

Jaiswal, Rakesh;
Kuhnert, Nikolai

Publication type:

Article

Differentiation of prototropic ions in regioisomeric caffeoyl quinic acids by electrospray ion mobility mass spectrometry.

Published in:

Rapid Communications in Mass Spectrometry: RCM, 2015, v. 29, n. 7, p. 675, doi. 10.1002/rcm.7151

By:

Kuhnert, Nikolai;
Yassin, Ghada H.;
Jaiswal, Rakesh;
Matei, Marius F.;
Grün, Christian H.

Publication type:

Article

Probing the dynamic reversibility and generation of dynamic combinatorial libraries in the presence of bacterial model oligopeptides as templating guests of tetra-carbohydrazide macrocycles using electrospray mass spectrometry.

Published in:

Rapid Communications in Mass Spectrometry: RCM, 2012, v. 26, n. 24, p. 2865, doi. 10.1002/rcm.6401

By:

Nour, Hany F.;
Islam, Tuhidul;
Fernández-Lahore, Marcelo;
Kuhnert, Nikolai

Publication type:

Article

High molecular weight non-polar hydrocarbons as pure model substances and in motor oil samples can be ionized without fragmentation by atmospheric pressure chemical ionization mass spectrometry.

Published in:

Rapid Communications in Mass Spectrometry: RCM, 2012, v. 26, n. 19, p. 2365, doi. 10.1002/rcm.6338

By:

Hourani, Nadim;
Kuhnert, Nikolai

Publication type:

Article

Probing the mechanism and dynamic reversibility of trianglimine formation using real-time electrospray ionization time-of-flight mass spectrometry.

Published in:

Rapid Communications in Mass Spectrometry: RCM, 2012, v. 26, n. 9, p. 1070, doi. 10.1002/rcm.6203

By:

Nour, Hany F.;
Lopez-Periago, Ana M.;
Kuhnert, Nikolai

Publication type:

Article

Mass spectrometric characterization of black tea thearubigins leading to an oxidative cascade hypothesis for thearubigin formation.

Published in:

Rapid Communications in Mass Spectrometry: RCM, 2010, v. 24, n. 23, p. 3387, doi. 10.1002/rcm.4778

By:

Kuhnert, Nikolai;
Drynan, J. Warren;
Obuchowicz, Jaczek;
Clifford, Michael N.;
Witt, Matthias

Publication type:

Article

Profiling and characterisation by liquid chromatography/multi-stage mass spectrometry of the chlorogenic acids in Gardeniae Fructus.

Published in:

Rapid Communications in Mass Spectrometry: RCM, 2010, v. 24, n. 21, p. 3109, doi. 10.1002/rcm.4751

By:

Clifford, Michael N.;
Wu, Weiguo;
Kirkpatrick, Jo;
Jaiswal, Rakesh;
Kuhnert, Nikolai

Publication type:

Article