Welcome to Kuzhelev Research Group


High-field EPR / DNP group

Nanoliter-Scale NMR of Biomolecule Solutions using Dynamic Nuclear Polarization

  1. Kuzhelev A.,* 31P Dynamic Nuclear Polarization through the Solid Effect: Study of Biomolecules in Aqueous Solutions at 9.4 T, Anal. Chem., 2025, 97, 14890−14893 (*corresponding author)
  2. Elter M., Brosz M., Sucerquia D., Kuzhelev A., Kiesewetter D., Kurth M., Dreuw A., Prisner Th., Freudenberg J., Bunz U., Gräter F., Breaking Strong Alkynyl-Phenyl Bonds: Poly(para-phenylene ethynylene)s under Mechanical Stress, J. Am. Chem. Soc. 2024, 146, 27594−27599, DOI: 10.1021/jacs.4c08765.
  3. Dai D., Denysenkov V., Bagryanskaya E., Tormyshev V., Prisner Th., Kuzhelev A.,* 13C Hyperpolarization of Viscous Liquids by Transfer of Solid-Effect 1H Dynamic Nuclear Polarization at High Magnetic Field. J. Phys. Chem. Lett. 2023, 14 (31), 7059–7064, DOI: 10.1021/acs.jpclett.3c01732 (*corresponding author).
  4. Kuzhelev A.,* Denysenkov V., Ahmad I., Rogozhnikova O., Trukhin D., Bagryanskaya E., Tormyshev V., Sigurdsson S., Prisner Th., Solid-Effect Dynamic Nuclear Polarization in Viscous Liquids at 9.4 T Using Narrow-Line Polarizing Agents. J. Am. Chem. Soc. 2023, 145 (18), 10268–10274, DOI: 10.1021/jacs.3c01358 (*corresponding author).
  5. Kurth M., Barayeu U., Gharibi H., Kuzhelev A., Riedmiller K., Zilke J., Noack K., Denysenkov V., Kappl R., Prisner Th., Zubarev R., Dick T., Gräter F., DOPA Residues Endow Collagen with Radical Scavenging Capacity, Angew. Chem. Int. Ed. 2023, 62, e202216610, DOI: 10.1002/anie.202216610.

​Available Facilities

​​

Spectrometer

Room

Frequency

CW

Pulsed

Temperature

Comments

Bruker EMX nano

N120, 9

9-10 GHz

X-band

Yes

No

298 K

Teaching (PC Praktikum)

Home-built

G-band

N140, 5

180 GHz

G-band

Yes

Yes

4 – 300 K

cw EPR, ED-spectra, PELDOR

AWG

home-built

N140, 7

9-10 GHz

X-band

No

Yes

4 – 300 K

Shaped pulses

Bruker Elexsys E500

N140, 7

9-10 GHz

 X-band

Yes

No

4 – 400 K

Spin counting

Bruker Elexsys E580

N140, 12

9-10/33-35 GHz

X-/Q-band

Yes

Yes

4 – 300 K

PELDOR, ENDOR,

ESEEM, cw-DNP

Bruker Elexsys E780

NMR hall

263 GHz

J-band

Yes

Yes

4 – 300 K

cw EPR,

ED-spectra, ENDOR

Home-built DNP at 9.4 T

NMR hall

263 GHz

J-band

Yes

No

280 – 340 K

Liquid-state DNP


Dr. Andrei Kuzhelev

Junior Group Leader 

Building N140, Room 18
+49 (0) 69-798-29593
email: kuzhelev (at) chemie.uni-ftrankfurt.de

Karen Heinrich
Administration

Building N120, Room 226 
+49 (0) 69-798-29708 
email: heinrich (at) chemie.uni-frankfurt.de 


Dr. Vasyl Denysenkov
Senior Scientist, Dipl. Phys.

Building N140, Room 11
+49 (0) 69-798-29183
email: denysenkov (at) em.uni-frankfurt.de

Bisera Krstić
Student Internship Assistant, CTA, Dipl. Chem.

Building N140, Room 13
+49 (0) 69-798-29423
email: krstic (at) em.uni-frankfurt.de

Dr. Sören Schlittenhardt
Postdoc

Building N140, Room 19
e-mail: schlittenhardt (at) em.uni-frankfurt.de

  1. Kuzhelev A.,* 31P Dynamic Nuclear Polarization through the Solid Effect: Study of Biomolecules in Aqueous Solutions at 9.4 T, Anal. Chem., 2025, 97, 14890−14893 (*corresponding author)
  2. Elter M., Brosz M., Sucerquia D., Kuzhelev A., Kiesewetter D., Kurth M., Dreuw A., Prisner Th., Freudenberg J., Bunz U., Gräter F., Breaking Strong Alkynyl-Phenyl Bonds: Poly(para-phenylene ethynylene)s under Mechanical Stress, J. Am. Chem. Soc. 2024, 146, 27594−27599, DOI: 10.1021/jacs.4c08765.
  3. Dai D., Denysenkov V., Bagryanskaya E., Tormyshev V., Prisner Th., Kuzhelev A.,* 13C Hyperpolarization of Viscous Liquids by Transfer of Solid-Effect 1H Dynamic Nuclear Polarization at High Magnetic Field. J. Phys. Chem. Lett. 2023, 14 (31), 7059–7064, DOI: 10.1021/acs.jpclett.3c01732 (*corresponding author).
  4. Kuzhelev A.,* Denysenkov V., Ahmad I., Rogozhnikova O., Trukhin D., Bagryanskaya E., Tormyshev V., Sigurdsson S., Prisner Th., Solid-Effect Dynamic Nuclear Polarization in Viscous Liquids at 9.4 T Using Narrow-Line Polarizing Agents. J. Am. Chem. Soc. 2023, 145 (18), 10268–10274, DOI: 10.1021/jacs.3c01358 (*corresponding author).
  5. Kurth M., Barayeu U., Gharibi H., Kuzhelev A., Riedmiller K., Zilke J., Noack K., Denysenkov V., Kappl R., Prisner Th., Zubarev R., Dick T., Gräter F., DOPA Residues Endow Collagen with Radical Scavenging Capacity, Angew. Chem. Int. Ed. 2023, 62, e202216610, DOI: 10.1002/anie.202216610.

​Available Facilities

​​

Spectrometer

Room

Frequency

CW

Pulsed

Temperature

Comments

Bruker EMX nano

N120, 9

9-10 GHz

X-band

Yes

No

298 K

Teaching (PC Praktikum)

Home-built

G-band

N140, 5

180 GHz

G-band

Yes

Yes

4 – 300 K

cw EPR, ED-spectra, PELDOR

AWG

home-built

N140, 7

9-10 GHz

X-band

No

Yes

4 – 300 K

Shaped pulses

Bruker Elexsys E500

N140, 7

9-10 GHz

 X-band

Yes

No

4 – 400 K

Spin counting

Bruker Elexsys E580

N140, 12

9-10/33-35 GHz

X-/Q-band

Yes

Yes

4 – 300 K

PELDOR, ENDOR,

ESEEM, cw-DNP

Bruker Elexsys E780

NMR hall

263 GHz

J-band

Yes

Yes

4 – 300 K

cw EPR,

ED-spectra, ENDOR

Home-built DNP at 9.4 T

NMR hall

263 GHz

J-band

Yes

No

280 – 340 K

Liquid-state DNP


Dr. Andrei Kuzhelev

Junior Group Leader 

Building N140, Room 18
+49 (0) 69-798-29593
email: kuzhelev (at) chemie.uni-ftrankfurt.de

Karen Heinrich
Administration

Building N120, Room 226 
+49 (0) 69-798-29708 
email: heinrich (at) chemie.uni-frankfurt.de 


Dr. Vasyl Denysenkov
Senior Scientist, Dipl. Phys.

Building N140, Room 11
+49 (0) 69-798-29183
email: denysenkov (at) em.uni-frankfurt.de

Bisera Krstić
Student Internship Assistant, CTA, Dipl. Chem.

Building N140, Room 13
+49 (0) 69-798-29423
email: krstic (at) em.uni-frankfurt.de

Dr. Sören Schlittenhardt
Postdoc

Building N140, Room 19
e-mail: schlittenhardt (at) em.uni-frankfurt.de