Skip to main content

9 Result(s)

within Weizhen Lin Remove this filter

and

  1. No Access

    Article

    Reaction mechanisms of riboflavin triplet state with nucleic acid bases

    ESR and laser flash photolysis studies have determined a reasonable order of reactivity of nucleotides with triplet riboflavin (3Rb*) for the first time. ESR detection of triplet state reactivity of Rb with nucle...

    Weizhen Lin, Changyuan Lu, Fuqiang Du… in Photochemical & Photobiological Sciences (2006)

  2. No Access

    Article

    A pulse radiolysis study on electron affinity of piperonal

    The piperonal electron affinity was studied using pulse radiolysis technique. The electron transfer reaction process between piperonal and anthraquinone-2-sulfate was observed in the pH 7 phosphoric acid salt ...

    Jianhua Ma, Weizhen Lin, Wenfeng Wang, Side Yao in Science in China Series B: Chemistry (2005)

  3. No Access

    Article

    Dynamic study of photosensitized one-electron oxidation of polyG by menadione

    The electron transfer reaction of triplet menadione (3MQ*) with polyguanylic acid (polyG) in CH3CN rich (97%) solution was investigated by 248 nm(KrF) laser flash photolysis. The transient absorption spectra and ...

    Jianhua Ma, Weizhen Lin, Fuqiang Du, Zhenhui Han… in Science in China Series B: Chemistry (2005)

  4. No Access

    Article

    Time resolve study on isopropyl-ether porphyrindiol

    A novel fat-soluble porphyrin derivative—isopropyl-ether porphyrindiol (IPEP) has been investigated using the nanosecond laser photolysis and pulse radiolysis. In acetonitrile, IPEP-excited triplet state shows...

    Lianwen Zhang, Side Yao, Weizhen Lin, Zhilong Chen in Science in China Series B: Chemistry (2003)

  5. No Access

    Article

    Laser photolysis of interaction of poly-guanylic acid (5′) with anthraquinone-2-sulfonate

    The electron transfer reaction between triplet anthraquinone-2-sulfonate and polyguanylic acid (5′) in CH3CN-H2O (97?3) has been investigated by 248 nm (KrF) laser flash photolysis. The transient absorption spect...

    Jianhua Ma, Weizhen Lin, Wenfeng Wang, Zhenhui Han… in Science in China Series B: Chemistry (2002)

  6. No Access

    Article

    Fast repair of dAMP hydroxyl radical adduct by verbascoside via electron transfer

    DNA damaged by oxygen radicals has been implicated as a causative event in a number of degenerative diseases, including cancer and aging. So it is very impotant to look for ways in which either oxygen radicals...

    Yimin Shi, Wenfeng Wang, Yan** Shi… in Science in China Series C: Life Sciences (1999)

  7. No Access

    Article

    Fast electron transfer repair of oxidizing OH adduct of dGMP by chlorogenic acid

    Pulse radiolysis of chlorogenic acid (CGA) as well as CGA and 2′-deoxyguanosine-5′-monophosphate (dGMP) has been carried out in aqueous solution using pulse radiolytic technique. From detailed kinetic analyses...

    Jianhua Ma, Su** Qian, Weizhen Lin, Side Yao in Science in China Series B: Chemistry (1998)

  8. No Access

    Article

    Laser flash photolysis of fullerols of C60 and of C70 in aqueous solutions

    Fullerols of C60 and of C70 [C60(OH)n, C70(OH)m], water-soluble fullerene derivatives, unlike some other fullerene derivatives (such as C60 (C4H6O), C60 (C3H7N) and C60 [C(COOEt)2]x), do not result in excited tri...

    Changyuan Lu, Side Yao, Wenfeng Wang, Yongpeng Tong… in Science in China Series B: Chemistry (1998)

  9. No Access

    Article

    Reactions of tea polyphenol four constituents with hydroxyl radical: A pulse radiolytic study

    Using the electron pulse radiolytic techniques, the reactions between hydroxyl radical and tea polyphenol four constituents epigallocatechin gallate (EGCG), epicatechin gallate (ECG), epigallocatechin (EGC) an...

    Yue Jiang, Side Yao, Weizhen Lin, Nianyun Lin… in Science in China Series B: Chemistry (1998)