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Kim, Youngsam,Jang, Yoon Jeong,Lee, Dongyoul,Kim, Byung-Sup,Churchill, David G. Elsevier 2017 Sensors and actuators. B, Chemical Vol.238 No.-
<P><B>Abstract</B></P> <P>Herein, a chemical probe is tested with live agents for the purpose of benchmarking fluorescent pyridyl-containing systems with actual nerve agents and simulants together. The molecule showed selective fluorogenic and colorimetric detection of Soman (GD) and its simulant over other G-series nerve agents and their simulants. <SUP>1</SUP>H and <SUP>31</SUP>P NMR spectroscopy and TD-DFT calculations help reveal the origin of the colorimetric and fluorogenic changes in the reacted system.</P>
Graphene oxide assisted spontaneous growth of V2O5 nanowires at room temperature.
Lee, Minoh,Hong, Won G,Jeong, Hu Young,Balasingam, Suresh Kannan,Lee, Zonghoon,Chang, Sung-Jin,Kim, Byung Hoon,Jun, Yongseok RSC Pub 2014 Nanoscale Vol.6 No.19
<P>Graphene-decorated single crystalline V2O5 nanowires (G-VONs) have been synthesized by mixing graphene oxide (GO) and V2O5 suspensions at room temperature. In this process, V2O5 nanowires (VONs) are formed spontaneously from commercial V2O5 particles with the aid of GO. The as-formed one dimensional G-VONs were characterized by using a X-ray diffractometer, a X-ray photoelectron spectrometer, a scanning electron microscope, and a transmission electron microscope. GO plays a vital role in the VON formation with the simultaneous reduction of GO. A single G-VON showed superior electrical conductivity compared with that of the pure VONs obtained from the sol-gel method. This could be ascribed to the insertion of rGO sheets into the V2O5 layered structure, which was further confirmed by electron energy loss spectroscopy.</P>
원발성 척수내 다형성 교아세포종 3례 : Report of 3 Cases
김하영,정희원,김현집,조병규,지제근,심보성 대한신경외과학회 1985 Journal of Korean neurosurgical society Vol.14 No.2
The authors report 3 cases of primary intramedullary glioblastoma multiforme which is relatively rare among spinal cord tumors. They were located at the thoracolumbar, cervical and conus medullaris region respectively. Clinical, radiographic and pathological material are presented and the literature is discussed.
김창진,이선호,정희원,조병규,심보성,지제근 대한신경외과학회 1984 Journal of Korean neurosurgical society Vol.13 No.1
Schwannomas arising from the cranial nerves of the jugular foramen are rare, only 50 cases including 15 glossopharyngeal schwannomas have been reported. They may be confused with the far more common acoustic schwannoma because of the presenting symptom of hearing loss. With the symptoms and signs of the lower cranial nerve involvement, the characteristic radiographic findings of enlarged Jugular foramen and normal internal acoustic meatus can make the diagnosis. The authors review the literature and present a unique case of glossopharyngeal schwannoma which had intra-and extracranial growth with intrapetrosal extension.
두개강내 상의세포종 : 임상적 병리적 특성 및 예후결정인자 Clinicopathologic Features and Prognostic Factors
김동규,조병규,양희진,지제근,정희원,김현집,최길수,한대희 대한신경외과학회 1991 Journal of Korean neurosurgical society Vol.20 No.10-11
The clinical and pathologic features, including prognostic factors and survival data, were analyzed for 23 patients with intracranial ependymoma treated surgically at the Seoul National University Hospital during the years 1979 to 1990. The age at diagnosis ranged from 2 months to 55 years(mean : 14.9 years). The male to female ratio was 10:13. Fifteen patients(65%) were under the age of 15. The tumors of twenty one patients(91%) were located infratentorially. The adjusted overall 5-year-survival rate of infratentorial ependymomas was 77% excluding 4 cases of surgical mortality(Kaplan-Meier method). The period of follow-up ranged from 2 to 70 months. No correlation was possible between 5-year-survival rate and extent of tumor, age group(below and above 6 years), extent of removal, or pathologic grading. Clinical or pathological evidence of spinal metastasis was not found.
전척수 수질내 종양 : 신경절교종 1예 Ganglioglioma A Case Report
김정훈,왕규창,조병규,오창완,지제근,최길수 대한신경외과학회 1990 Journal of Korean neurosurgical society Vol.19 No.2
Spinal cord ganglioglioma is an extremely rare tumor. Authors present a 6-year old boy who had a holocord ganglioglioma with a long history of kypho-scoliosis. The mass was located entirely in the spinal cord and mixed cystic and solid with variable consistencies. The color was grayish purple-yellow in soft part, and pale yellow-white in scirrhoid part. It was not well demarcated by surrounding normal spinal cord in major parts.
김동호,이현구,조병규,최길수,지제근 대한신경외과학회 1983 Journal of Korean neurosurgical society Vol.12 No.1
Reticulum cell sarcoma occurs rarely in cevtral nervous system. It occupies 1 - 2.5% of all brain tumors. The prognosis is known to be very poor: 3 weeks of mean survival time in case of no treatment, 2 months of mean survival time in case of only surgery, 9 months-3 years of mean survival time in case of both surgery and radiation. We have experienced a case of reticulum cell sarcoma in brain and obtained a good result after surgery and radiation. We report our case with a brief review of the articles.
김하영,정희원,조병규,한대희,지제근,최길수,심보성 대한신경외과학회 1986 Journal of Korean neurosurgical society Vol.15 No.4
The authors reviewed 37 consecutive cases of histologically proven oligodendroglioma who were treated at the Seoul National University Hospital, between 1979 and 1986. There was a 1.5:1 male to female ratio. The age of patients at the time of diagnosis varied between 6 and 64 years(mean 38 years), with 51% in the fourth and fifth decades. The incidence of oligodendrogliomas represented 5% of all brain tumors and 15.5% of all gliomas. All but one were located supratentorially and 54% of them involved the frontal lobe. The mean duration of symptoms prior to the surgery was 27.2 months, but seizures had a considerably longer duration of 6.4 years. The common symptoms were headache(62%), seizures( 38%), and motor weakness( 22%). The common neurological findings were papilledema(51%), motor deficit(24%), and change in cognition(19%). Six out of 37 cases(16%) presented as the spontaneous intracranial hemorrhage. Calcifications were detected on plain X-ray films of the skull in 19% of patients and fine vascular stains were found on carotid angiograms in 30% of the cases. Brain CT revealed calcification(57%), cyst formation(43%),low density(35%) and heterogenous contrast enhancement (35%). The important factors affecting the prognosis and the recurrence rate were (1) the extent of surgical excision, (2) postoperative radiation therapy, and (3) the pathologic grading. There was a significant difference in the recurrence rate between patients treated with postoperative irradiation and patients treated with surgery alone.
뇌하수체경을 침범한 Histiocytosis X : 증례 보고 Case Report
조병규,왕규창,양세원,지제근,김인원,최길수 대한신경외과학회 1989 Journal of Korean neurosurgical society Vol.18 No.7-12
A case of histiocytosis X with the involvement of pituitary stalk in a 5 year old boy was described. He presented with diabetes insipidus and the endocrinological study showed growth hormone deficiency. On computerized tomography and magnetic resonance imaging, the pituitary stalk was abnormally thick. Overlooking of the skull lesion on plain X-ray film led to an erroneous diagnosis of 'germ cell tumor'. Gross total removal of the lesion and chemotherapy were performed. In the differential diagnosis of suprasellar masses, this disease entity should be included. The importance of histological diagnosis of the infundibular lesion in cases of central diabetes insipidus is also emphasized.