|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Molecular cloning, functional analysis and localization of a novel gene encoding polygalacturonase-inhibiting protein in Chorispora bungeana显示文摘 | Cuixia Di Ming Li Feng Long Muqun Bai Yajie liu Xiaolin Zheng Shijian Xu Yun Xiang Zhenglong Sun Lizhe An | 2009 | Planta2009，，1： | 1 |
| 2 | Photoacoustic effect invokes auditory response in infrared neuron stimulation显示文摘Infrared neuron stimulation is regarded as an innovative approach for stimulating cochleae in animals while the exact mechanism still remains unknown.In this paper,we studied compound action potentials of guinea pig cochleae with chronic or acute deafness.We recorded optical compound action potentials and analyzed stretched cochlear preparations by fiuorescence microscopy.Photoacoustic signals were measured by hydrophone and microphone,respectively.In our experiment,we observed a switch response effect in vitro and in vivo experiments.Therefore,we proposed photoacoustic effect could invoke auditory response in infrared neuron stimulation. | Muqun Yang Tian Guan Yonghong He | 2019 | Journal of Innovative Optical Health Sciences2019，，1： | 0 |
| 3 | A photoacoustic imaging system with variable gain at different depths显示文摘We established a photoacoustic imaging(PAI)system that can provide variable gain at different depths.The PAI system consists of a pulsed laser with an optical parametric oscillator working at a 728 nmwavelength and an imaging-acquisition-and-processing unit with an ultrasound transducer.Avoltage-controlled attenuator was used to realize variable gain at different depths when acquiring PAI signals.The proof-of-concept imaging results for variable gain at different depths were achieved using specic phantoms.Both resolution and optical contrast obtained through the results of variable gain for a targeted depth range are better than those of constant gain for all depths.To further testify the function,we imaged the sagittal section of the body of in vivo nude mice.In addition,we imaged an absorption sample embedded in a chicken breast tissue,reaching a maximum imaging depth of4.6 cm.The results obtained using the proposed method showed better resolution and contrast than when using 50 dB gain for all depths.The depth range resolution was1 mm,and the maximum imaging depth of our system reached4.6 cm.Furthermore,blood vessels can be revealed and targeted depth range can be selected in nude mice imaging. | Tian Guan Yao Li Muqun Yang Yong Jiang Yonghong He | 2018 | Journal of Innovative Optical Health Sciences2018，，5： | 0 |
| 4 | In vivo auditory nerve stimulation with visible light显示文摘Background:Infrared laser stimulation has been proposed as an innovative method to elicit an auditory nerve response.Most studies have focused on usi ng long-wavelength infrared(>980 nm)pulsod lasers with high water absoption cofficients.This paper sought to assts8 whether a short-wavelength laser(465 nm)with an absorption cofficient as low as 103 cm^(-1) would activate the auditory nerve and studied its potential mechanism.Method:Optical compound action potentials(OCAPs)were recorded when synchronous triger laser pulses st imulate the cochlea before and after deafening,varying the pulse durations(from 8001us to 36001us)and the amount of radiant enengy(fom 18.05 mJ/cm^(2) to 107.91 mJ/cm^(2)).A thermal infrared imager was applied to monitor the tempenature change of the guinea pig cochlea.Results:The results showed that pulsed laser stimulation at 465 nm could invoke OCAPs and had a similar waveform compared to the acoustical compound action potentials.The amplitude of OCAPs had a poaitive correlation with the in-creasi ng laser peak power,while the latency of OCAPs showed a negative correlation.The imager data showed that the temperature in thecochlea rose quickly by about 0.3℃ right after stimulating the cochlea and decreased quickly back to the initial temperature as the stimulation ended.Con-clusions:This paper demonstrates that 465-nm laser st imulation can successfully induce OCAPs outside the cochlea,and that the amplitude and latency of the invoked OCAPs are highly affected by laser peak power.This paper proposes that a photothermal efect might be the main mechanism for the auditory nerve response induced by short-wavelength laser stimulation. | Tian Guan Muqun Yang Yonghong He | 2017 | Journal of Innovative Optical Health Sciences2017，，5： | 0 |
| 5 | The Negative Thermal Expansion Property of NdMnO_(3) Based on Pores Effect and Phase Transition显示文摘A novel negative thermal expansion(NTE) material NdMnO_(3) was synthesized by solid-state method at 1 523 K. The crystal structure, phase transition, pores effect and negative expansion properties of NdMnO_(3) were investigated by variable temperature X-ray diffraction(XRD), scanning electron microscope(SEM) and variable temperature Raman spectra. The compound exhibits NTE properties in the orderly O' phase crystal structure. When the temperature is from 293 to 759 K, the ceramic NdMnO_(3) shows negative thermal expansion of-4.7×10^(-6)/K. As temperature increases, the ceramic NdMnO_(3) presents NTE property range from 759 to 1 007 K. The average linear expansion coefficient is-18.88×10^(-6)/K. The physical mechanism of NTE is discussed and clarified through experiments. | 李玉成 张扬 ZHANG Muqun DUAN Rong LIU Xiteng | 2024 | Journal of Wuhan University of Technology(Materials Science)2024，39，1： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员