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Items: 1 to 50 of 68

1.

Photo-protection/photo-damage in natural systems: general discussion.

Ashfold M, Bai S, Bradforth S, Chabera P, Cina J, Crespo-Hernández CE, das Neves Rodrigues N, Duchi M, Fleming G, Grieco C, Habershon S, Haggmark M, Hammes-Schiffer S, Hsieh ST, Kohler B, Lokstein H, Marcus A, Martinez T, Matsika S, Oliver TAA, Ortiz-Rodríguez L, Polivka T, Son M, Stavros V, Steen C, Turner M, Walla PJ, Woolley J.

Faraday Discuss. 2019 Jul 11;216(0):538-563. doi: 10.1039/c9fd90031d. No abstract available.

PMID:
31273373
2.

Photovoltaics and bio-inspired light harvesting: general discussion.

Ashfold M, Bender J, Bittner E, Cina J, Crespo-Hernández CE, das Neves Rodrigues N, Dawlaty J, Dill R, Dodin A, Duchi M, Estergreen L, Gate G, Gaynor J, Ginsberg N, Grieco C, Hammes-Schiffer S, Huxter V, Irgen-Gioro S, Joy J, Kohler B, Korovina N, Mahl J, Marcus A, Martinez T, Morenz K, Morris A, Ogilvie J, Oliver TAA, Penfold T, Persson P, Roberts T, Schwartz B, Song Y, Thompson M, Wasielewski M, Weiss E, Williams K.

Faraday Discuss. 2019 Jul 11;216(0):269-300. doi: 10.1039/c9fd90028d. No abstract available.

PMID:
31270516
3.

Tracking the origin of photostability in purine nucleobases: the photophysics of 2-oxopurine.

Martínez-Fernández L, Arslancan S, Ivashchenko D, Crespo-Hernández CE, Corral I.

Phys Chem Chem Phys. 2019 Jul 7;21(25):13467-13473. doi: 10.1039/c9cp00879a. Epub 2019 Jun 12.

PMID:
31187825
4.

Excited-State Dynamics in the RNA Nucleotide Uridine 5'-Monophosphate Investigated Using Femtosecond Broadband Transient Absorption Spectroscopy.

Brister MM, Crespo-Hernández CE.

J Phys Chem Lett. 2019 May 2;10(9):2156-2161. doi: 10.1021/acs.jpclett.9b00492. Epub 2019 Apr 18.

PMID:
30995048
5.

Heavy-Atom-Substituted Nucleobases in Photodynamic Applications: Substitution of Sulfur with Selenium in 6-Thioguanine Induces a Remarkable Increase in the Rate of Triplet Decay in 6-Selenoguanine.

Farrell KM, Brister MM, Pittelkow M, Sølling TI, Crespo-Hernández CE.

J Am Chem Soc. 2018 Sep 12;140(36):11214-11218. doi: 10.1021/jacs.8b07665. Epub 2018 Aug 28.

PMID:
30145892
6.

Photochemical and Photodynamical Properties of Sulfur-Substituted Nucleic Acid Bases.

Ashwood B, Pollum M, Crespo-Hernández CE.

Photochem Photobiol. 2019 Jan;95(1):33-58. doi: 10.1111/php.12975. Epub 2018 Sep 9. Review.

PMID:
29978490
7.

Light induced charge and energy transport in nucleic acids and proteins: general discussion.

Chattopadhyay A, Cogdell R, Crespo-Hernández CE, Datta A, De A, Haacke S, Hariharan M, Helliwell J, Hughes A, Improta R, Jones M, Joseph J, Karsili T, Kohler B, Krishnan R, Kuriakose A, L M, Markovitsi D, Medhi H, Periyasamy G, Pradeepkumar PI, Roy Chowdhury P, Sarangi M, Schapiro I, Schertler GFX, Schlichting I, Segarra-Martí J, Swaminathan R, V V, van Grondelle R, Venkatraman RK, Venkatramani R, Watts A.

Faraday Discuss. 2018 Apr 1;207:153-180. doi: 10.1039/c8fd90004c. Epub 2018 Apr 5. No abstract available.

PMID:
29620133
8.

Photocrosslinking between nucleic acids and proteins: general discussion.

Bhat V, Cogdell R, Crespo-Hernández CE, Datta A, De A, Haacke S, Helliwell J, Improta R, Joseph J, Karsili T, Kohler B, Krishnan R, L M, Lewis F, Mandal I, Markovitsi D, Mishra PP, Paul S, Periyasamy G, Pradeepkumar PI, Roy Chowdhury P, Sarangi M, Sasikumar D, Schapiro I, Schertler GFX, Schlichting I, Segarra-Martí J, Swaminathan R, V V, van Grondelle R, Varghese R, Venkatramani R.

Faraday Discuss. 2018 Apr 1;207:283-306. doi: 10.1039/c8fd90005a. Epub 2018 Apr 4. No abstract available.

PMID:
29617022
9.

Light induced damage and repair in nucleic acids and proteins: general discussion.

Chandra A, Cogdell R, Crespo-Hernández CE, Datta A, Giussani A, Haacke S, Helliwell J, Improta R, Jayasree RS, Jones M, Karsili T, Kohler B, L M, Mandal I, Markovitsi D, Medhi H, Mishra PP, Pradeepkumar PI, Roy Chowdhury P, Sarangi M, Schapiro I, Schlichting I, Segarra-Martí J, Sharma A, V V, van Grondelle R, Watts A.

Faraday Discuss. 2018 Apr 1;207:389-408. doi: 10.1039/c8fd90006j. Epub 2018 Apr 4. No abstract available.

PMID:
29617016
10.

Dithionated Nucleobases as Effective Photodynamic Agents against Human Epidermoid Carcinoma Cells.

Pollum M, Lam M, Jockusch S, Crespo-Hernández CE.

ChemMedChem. 2018 May 23;13(10):1044-1050. doi: 10.1002/cmdc.201800148. Epub 2018 Apr 14.

PMID:
29532623
11.

Photochemical relaxation pathways of S6-methylthioinosine and O6-methylguanosine in solution.

Ashwood B, Ortiz-Rodríguez LA, Crespo-Hernández CE.

Faraday Discuss. 2018 Apr 17;207(0):351-374. doi: 10.1039/c7fd00193b.

PMID:
29372193
12.

Photorelaxation and Photorepair Processes in Nucleic and Amino Acid Derivatives.

Crespo-Hernández CE.

Molecules. 2017 Dec 12;22(12). pii: E2203. doi: 10.3390/molecules22122203.

13.

Photochemical Relaxation Pathways in Dinitropyrene Isomer Pollutants.

Brister MM, Piñero-Santiago LE, Morel M, Arce R, Crespo-Hernández CE.

J Phys Chem A. 2017 Nov 2;121(43):8197-8206. doi: 10.1021/acs.jpca.7b04769. Epub 2017 Oct 19.

PMID:
28984454
14.

Excited-State Dynamics in O6-Methylguanosine: Impact of O6-Methylation on the Relaxation Mechanism of Guanine Monomers.

Ashwood B, Ortiz-Rodríguez LA, Crespo-Hernández CE.

J Phys Chem Lett. 2017 Sep 21;8(18):4380-4385. doi: 10.1021/acs.jpclett.7b02090. Epub 2017 Aug 31.

PMID:
28850232
15.

2-Thiouracil intersystem crossing photodynamics studied by wavelength-dependent photoelectron and transient absorption spectroscopies.

Sánchez-Rodríguez JA, Mohamadzade A, Mai S, Ashwood B, Pollum M, Marquetand P, González L, Crespo-Hernández CE, Ullrich S.

Phys Chem Chem Phys. 2017 Aug 2;19(30):19756-19766. doi: 10.1039/c7cp02258a.

PMID:
28630971
16.

HnRNP A1 Alters the Structure of a Conserved Enterovirus IRES Domain to Stimulate Viral Translation.

Tolbert M, Morgan CE, Pollum M, Crespo-Hernández CE, Li ML, Brewer G, Tolbert BS.

J Mol Biol. 2017 Sep 15;429(19):2841-2858. doi: 10.1016/j.jmb.2017.06.007. Epub 2017 Jun 15.

17.

Photochemical Reactivity of dTPT3: A Crucial Nucleobase Derivative in the Development of Semisynthetic Organisms.

Ashwood B, Jockusch S, Crespo-Hernández CE.

J Phys Chem Lett. 2017 Jun 1;8(11):2387-2392. doi: 10.1021/acs.jpclett.7b00926. Epub 2017 May 12.

PMID:
28488432
18.

Electronic relaxation pathways of the biologically relevant pterin chromophore.

DiScipio RM, Santiago RY, Taylor D, Crespo-Hernández CE.

Phys Chem Chem Phys. 2017 May 24;19(20):12720-12729. doi: 10.1039/c7cp01574g.

PMID:
28480921
19.

Solvatochromic Effects on the Absorption Spectrum of 2-Thiocytosine.

Mai S, Ashwood B, Marquetand P, Crespo-Hernández CE, González L.

J Phys Chem B. 2017 May 25;121(20):5187-5196. doi: 10.1021/acs.jpcb.7b02715. Epub 2017 May 12.

20.

Excited-State Dynamics of the Thiopurine Prodrug 6-Thioguanine: Can N9-Glycosylation Affect Its Phototoxic Activity?

Ashwood B, Jockusch S, Crespo-Hernández CE.

Molecules. 2017 Feb 28;22(3). pii: E379. doi: 10.3390/molecules22030379.

21.

The Photochemical Branching Ratio in 1,6-Dinitropyrene Depends on the Excitation Energy.

Brister MM, Piñero-Santiago LE, Morel M, Arce R, Crespo-Hernández CE.

J Phys Chem Lett. 2016 Dec 15;7(24):5086-5092. Epub 2016 Dec 1.

PMID:
27973879
22.

Decoding the Molecular Basis for the Population Mechanism of the Triplet Phototoxic Precursors in UVA Light-Activated Pyrimidine Anticancer Drugs.

Martínez-Fernández L, Granucci G, Pollum M, Crespo-Hernández CE, Persico M, Corral I.

Chemistry. 2017 Feb 21;23(11):2619-2627. doi: 10.1002/chem.201604543. Epub 2017 Jan 26.

PMID:
27911037
23.

Can a Six-Letter Alphabet Increase the Likelihood of Photochemical Assault to the Genetic Code?

Ashwood B, Pollum M, Crespo-Hernández CE.

Chemistry. 2016 Nov 7;22(46):16648-16656. doi: 10.1002/chem.201602160. Epub 2016 Oct 10.

PMID:
27723147
24.

The origin of efficient triplet state population in sulfur-substituted nucleobases.

Mai S, Pollum M, Martínez-Fernández L, Dunn N, Marquetand P, Corral I, Crespo-Hernández CE, González L.

Nat Commun. 2016 Oct 5;7:13077. doi: 10.1038/ncomms13077.

25.

Unintended Consequences of Expanding the Genetic Alphabet.

Pollum M, Ashwood B, Jockusch S, Lam M, Crespo-Hernández CE.

J Am Chem Soc. 2016 Sep 14;138(36):11457-60. doi: 10.1021/jacs.6b06822. Epub 2016 Sep 2.

PMID:
27564795
26.

Correction: Photochemical etiology of promising ancestors of the RNA nucleobases.

Brister MM, Pollum M, Crespo-Hernández CE.

Phys Chem Chem Phys. 2016 Aug 28;18(32):22731. Epub 2016 Jul 25.

PMID:
27453196
27.

Internal conversion and intersystem crossing pathways in UV excited, isolated uracils and their implications in prebiotic chemistry.

Yu H, Sanchez-Rodriguez JA, Pollum M, Crespo-Hernández CE, Mai S, Marquetand P, González L, Ullrich S.

Phys Chem Chem Phys. 2016 Jul 27;18(30):20168-76. doi: 10.1039/c6cp01790h.

PMID:
27189184
28.

Photochemical etiology of promising ancestors of the RNA nucleobases.

Brister MM, Pollum M, Crespo-Hernández CE.

Phys Chem Chem Phys. 2016 Jul 27;18(30):20097-103. doi: 10.1039/c6cp00639f.

PMID:
26898746
29.

The Triplet State of 6-thio-2'-deoxyguanosine: Intrinsic Properties and Reactivity Toward Molecular Oxygen.

Pollum M, Ortiz-Rodríguez LA, Jockusch S, Crespo-Hernández CE.

Photochem Photobiol. 2016 Mar;92(2):286-292. doi: 10.1111/php.12563. Epub 2016 Feb 11.

PMID:
26757207
30.

Direct Observation of Triplet-State Population Dynamics in the RNA Uracil Derivative 1-Cyclohexyluracil.

Brister MM, Crespo-Hernández CE.

J Phys Chem Lett. 2015 Nov 5;6(21):4404-9. doi: 10.1021/acs.jpclett.5b01901. Epub 2015 Oct 23.

PMID:
26538051
31.

Increase in the photoreactivity of uracil derivatives by doubling thionation.

Pollum M, Jockusch S, Crespo-Hernández CE.

Phys Chem Chem Phys. 2015 Nov 7;17(41):27851-61. doi: 10.1039/c5cp04822b.

PMID:
26439833
32.

Electronic and structural elements that regulate the excited-state dynamics in purine nucleobase derivatives.

Crespo-Hernández CE, Martínez-Fernández L, Rauer C, Reichardt C, Mai S, Pollum M, Marquetand P, González L, Corral I.

J Am Chem Soc. 2015 Apr 8;137(13):4368-81. doi: 10.1021/ja512536c. Epub 2015 Mar 25.

33.

2,4-Dithiothymine as a potent UVA chemotherapeutic agent.

Pollum M, Jockusch S, Crespo-Hernández CE.

J Am Chem Soc. 2014 Dec 31;136(52):17930-3. doi: 10.1021/ja510611j. Epub 2014 Dec 17.

PMID:
25506742
34.

Photochemistry of nucleic acid bases and their thio- and aza-analogues in solution.

Pollum M, Martínez-Fernández L, Crespo-Hernández CE.

Top Curr Chem. 2015;355:245-327. doi: 10.1007/128_2014_554. Review.

PMID:
25238718
35.
36.

Conformational control in the population of the triplet state and photoreactivity of nitronaphthalene derivatives.

Vogt RA, Crespo-Hernández CE.

J Phys Chem A. 2013 Dec 27;117(51):14100-8. doi: 10.1021/jp4101587. Epub 2013 Dec 5.

PMID:
24283295
37.

Excited-state dynamics in nitro-naphthalene derivatives: intersystem crossing to the triplet manifold in hundreds of femtoseconds.

Vogt RA, Reichardt C, Crespo-Hernández CE.

J Phys Chem A. 2013 Aug 1;117(30):6580-8. doi: 10.1021/jp405656n. Epub 2013 Jul 11.

PMID:
23845162
38.

Role of intersystem crossing in the fluorescence quenching of 2-aminopurine 2'-deoxyriboside in solution.

Reichardt C, Wen C, Vogt RA, Crespo-Hernández CE.

Photochem Photobiol Sci. 2013 Aug;12(8):1341-50. doi: 10.1039/c3pp25437b. Erratum in: Photochem Photobiol Sci. 2013 Dec;12(12):2203.

PMID:
23529277
39.

Subpicosecond intersystem crossing in mono- and di(organophosphine)gold(I) naphthalene derivatives in solution.

Vogt RA, Gray TG, Crespo-Hernández CE.

J Am Chem Soc. 2012 Sep 12;134(36):14808-17. doi: 10.1021/ja303592q. Epub 2012 Aug 28.

PMID:
22909171
40.

In silico structure-function analysis of E. cloacae nitroreductase.

Isayev O, Crespo-Hernández CE, Gorb L, Hill FC, Leszczynski J.

Proteins. 2012 Dec;80(12):2728-41. doi: 10.1002/prot.24157. Epub 2012 Sep 15.

PMID:
22865652
41.

Synthesis, optical characterization, and electrochemical properties of isomeric tetraphenylbenzodifurans containing electron acceptor groups.

Santos-Pérez J, Crespo-Hernández CE, Reichardt C, Cabrera CR, Feliciano-Ramos I, Arroyo-Ramírez L, Meador MA.

J Phys Chem A. 2011 May 5;115(17):4157-68. doi: 10.1021/jp111174p. Epub 2011 Apr 7.

PMID:
21473598
42.

Excited-state dynamics in 6-thioguanosine from the femtosecond to microsecond time scale.

Reichardt C, Guo C, Crespo-Hernández CE.

J Phys Chem B. 2011 Mar 31;115(12):3263-70. doi: 10.1021/jp112018u. Epub 2011 Mar 8.

PMID:
21384813
43.

Photophysical and photochemical properties of the pharmaceutical compound salbutamol in aqueous solutions.

Dodson LG, Vogt RA, Marks J, Reichardt C, Crespo-Hernández CE.

Chemosphere. 2011 Jun;83(11):1513-23. doi: 10.1016/j.chemosphere.2011.01.048. Epub 2011 Feb 12.

PMID:
21316733
44.

Quenching enhancement of the singlet excited state of pheophorbide-a by DNA in the presence of the quinone carboquone.

Díaz-Espinosa Y, Crespo-Hernández CE, Alegría AE, García C, Arce R.

Photochem Photobiol. 2011 Mar-Apr;87(2):275-83. doi: 10.1111/j.1751-1097.2010.00869.x. Epub 2011 Jan 4.

45.

Ultrafast spin crossover in 4-thiothymidine in an ionic liquid.

Reichardt C, Crespo-Hernández CE.

Chem Commun (Camb). 2010 Aug 28;46(32):5963-5. doi: 10.1039/c0cc01181a. Epub 2010 Jul 9.

PMID:
20617255
46.

On the origin of ultrafast nonradiative transitions in nitro-polycyclic aromatic hydrocarbons: Excited-state dynamics in 1-nitronaphthalene.

Reichardt C, Vogt RA, Crespo-Hernández CE.

J Chem Phys. 2009 Dec 14;131(22):224518. doi: 10.1063/1.3272536.

PMID:
20001068
47.

Deuterium isotope effect on excited-state dynamics in an alternating GC oligonucleotide.

de La Harpe K, Crespo-Hernández CE, Kohler B.

J Am Chem Soc. 2009 Dec 9;131(48):17557-9. doi: 10.1021/ja9076364.

48.

The excited-state lifetimes in a G x C DNA duplex are nearly independent of helix conformation and base-pairing motif.

de la Harpe K, Crespo-Hernández CE, Kohler B.

Chemphyschem. 2009 Jul 13;10(9-10):1421-5. doi: 10.1002/cphc.200900004.

49.

DNA excited-state dynamics: from single bases to the double helix.

Middleton CT, de La Harpe K, Su C, Law YK, Crespo-Hernández CE, Kohler B.

Annu Rev Phys Chem. 2009;60:217-39. doi: 10.1146/annurev.physchem.59.032607.093719. Review.

PMID:
19012538
50.

UV excitation of single DNA and RNA strands produces high yields of exciplex states between two stacked bases.

Takaya T, Su C, de La Harpe K, Crespo-Hernández CE, Kohler B.

Proc Natl Acad Sci U S A. 2008 Jul 29;105(30):10285-90. doi: 10.1073/pnas.0802079105. Epub 2008 Jul 22.

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