Temperature-dependent Raman spectra of collagen and DNA

Dong, Ruixin; Yan, Xiaobing; Pang, Xin; Liu, Shenggang

doi:10.1016/s1386-1425(03)00262-2

Cited by 63 publications

(52 citation statements)

References 15 publications

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“…6(b), within the dotted line) is likely associated with thermal denaturation of the superficial layers of mesenteric sheath, and namely collagen. Conformational rearrangements associated with collagen denaturation [31] have been reported to occur at temperatures above 40-42˚C [32,33]. The effect is most pronounced at 2000 mW (Fig.…”

Section: Discussionmentioning

confidence: 97%

Darkfield orthogonal polarized spectral imaging for studying endovascular laser-tissue interactions in vivo-a preliminary study

et al. 2005

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Due to the limited number of suitable intravital microscopy techniques, relatively little is known about the opto-thermal (endo)vascular responses to selective photothermolysis, used as a default treatment modality for superficial vascular anomalies such as port wine stains, telangiectasias, and hemangiomas. In this preliminary study we present a novel microscopy technique for studying (endo)vascular laser-tissue interactions in vivo, in which conventional orthogonal polarized spectral (OPS) imaging is combined with darkfield (DF) illumination. DFOPS imaging of rat mesenteric vasculature irradiated at increasing powers revealed the following (tissular) responses: formation of translucent aggregates, retrograde flow, gradual and immediate hemostasis, reinstatement of flow, vessel disappearance, and perivascular collagen damage. DFOPS imaging therefore constitutes a useful tool for examining (endo)vascular events following selective photothermolysis. W. Groner, J. W. Winkelman, A. G. Harris, C. Ince, G. J. Bouma, K. Messmer, and R. G. Nadeau, "Orthogonal polarization spectral imaging: a new method for study of the microcirculation," Nat. Med. 5, 1209-1212 (1999

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Section: Discussionmentioning

confidence: 97%

Darkfield orthogonal polarized spectral imaging for studying endovascular laser-tissue interactions in vivo-a preliminary study

et al. 2005

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“…Dentin collagen is a biomaterial that has its own physical properties, such as a low melting point, a low thermal conductivity, etc. The demineralized dentine matrix, when saturated with water, showed a denaturation temperature of around 40 or 60°C 33,34) . For the conventional CAP plasma jets, although their gas temperatures are close to room temperature (which can be regarded as the initial surface temperature of the collagen fibrils), the absolute values of the gas temperatures always exceed room temperature by about 30-50 K due to the energy deposition from the external circuit during discharges.…”

Section: Discussionmentioning

confidence: 99%

Effects of a modified cold atmospheric plasma jet treatment on resin-dentin bonding

Zhu

Zhou

Guo

et al. 2018

Dental Materials Journal

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The radio-frequency atmospheric-pressure glow discharge (RF-APGD) plasma is a novel cold atmospheric plasma (CAP) source, which has low energy characteristic. This study investigated the effect of RF-APGD plasma on the mechanical properties of dentin collagen and resin-dentin bonding. The scanning electron microscopy analysis was performed before and after a novel RF-APGD plasma and a conventional CAP treatment and a tensile test was carried out for the stiffness of dentin collagen. The microtensile resin-dentin bond strength was tested either immediately or after a 50,000-cycle thermocycling process. Dentin collagen maintained an intact structure after a 45-s RF-APGD plasma treatment, whereas even a 10-s treatment with the conventional CAP collapsed the collagen scaffold. When compared with control groups, the RF-APGD plasma treatment showed: (i) an improved stiffness of dentin collagen; (ii) a significant improvement in the bonding strength before/after artificial aging. Thus, RF-APGD plasma treatment has excellent prospects as a resin-dentin bonding protocol.

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“…Indeed, the relative intensity ratio of this doublet, typically assigned to two amide III vibrations, has been usually employed as an important marker for collagen conformation [3,4,[6][7][8][9][10][11][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Effects of sample orientation in Raman microspectroscopy of collagen fibers and their impact on the interpretation of the amide III band

Bonifacio

Sergo

2010

Vibrational Spectroscopy

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Temperature-dependent Raman spectra of collagen and DNA

Cited by 63 publications

References 15 publications

Darkfield orthogonal polarized spectral imaging for studying endovascular laser-tissue interactions in vivo-a preliminary study

Darkfield orthogonal polarized spectral imaging for studying endovascular laser-tissue interactions in vivo-a preliminary study

Effects of a modified cold atmospheric plasma jet treatment on resin-dentin bonding

Effects of sample orientation in Raman microspectroscopy of collagen fibers and their impact on the interpretation of the amide III band

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