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        검색결과 422

        162.
        2006.04 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study was to evaluate the role of Fas, Fas-L, and FAP-1 expression in the oral squamous cell carcinomas and ameloblastomas. For this study, 10 subjects diagnosed as squamous cell carcinoma and 8 subjects of ameloblastoma referred to the Dept. of Oral Pathology, School of Dentistry, Kyung Hee University, 5 subjects of normal oral mucosa without any inflammatory changes were used as experimental, control groups respectively. All the tissues ; experimental and control group were fixed in neutral formalin solution and embedded in paraffin, serial tissue section were made 5㎛ in thickness and processed in the standard way for immunohistochemical method, using primary antibody against Fas, Fas-L, FAP-1, each was diluted at 1;100 followed by the super sensitive non- biotin horse radish peroxidase detection system with DAB as chormogen, counterstained with Gill's hematoxylin stain method , mounted. And examined under the biologic microscope with the criteria of -(no epithelial stain), +(weak or focal epithelial stain), ++(moderate or focal intensive epithelial stain), +++(intense generalized epithelial staining) for the epithelial, and connective tissue component in squamous cell carcinomas , ameloblastomas and normal oral mucosa on each. In normal oral epithelium, negative reaction was noted on the Fas . Fas-L stain, but on FAP-1 reaction, tumors cells with intense reaction on nuclei and cytoplasm or negative reaction on nuclei with intense reaction on cytoplasm were admixed. On Fas, Fas-1 reaction, both tumor cells of ameloblastoma and oral squamous cell carcinoma showed negative reaction on nuclei and cytoplasms. On FAP-1 reaction, tumor cells of oral squamous cell carcinomas showed more intensive response compare to that on ameloblastomas. Considering these results, the tumor cells of ameloblastoma and squamous cell carcinoma showed negative reaction on the Fas and Fas-L, but it could suggest that FAP-1 induce the development of tumors by means of inhibition of the apoptosis.
        4,000원
        163.
        2005.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        1'he purpose 0 1' this study was to evaluate the ro1e of c• fos and c-jun expression in the salivary gland tumol‘ s , For this study‘ 11 s ubj ects of sali vary gland tumors ; 4 su이 ects of p1eomorphic adenomas, 3 s ubj ects of adenoid cystic car cinomas , 2 s ubjects of adenocar cinomas, 2 subjects of mucoepidermoid tumors, referred to the Dept, of Ora l Path College of Dentis t l'Y, Kyung Hee Univer sity, were used as experimental group, and 2 subj ect s of normal minor salivary gla nds without a ny infla mmator y changes, were used as control group respectively, All the tissues experimenta l and control group were fixed in 10% neutral formalin solution and embedded in paraffin , serial ti ssue section were made 5 I1I1l in thickness a nd processed in the s t andard way for immunohistochemical method, using primary and secondar y a ntibodi es, for c-fos, c-jun, foll owed by the Streptavidin-Horse Radish Peroxidase, all BioGenex U,S,A, made, appli cat ion counter s t ained with Mayer's hematoxylin stain method, mounted And examined under the biologic mi croscope, with the criteria : -(no epitheli al s ta in), +(weak or focal epithelial stain), ++(moder a te or focal intensive epithelial sta in)‘ +++(intense generali zed epithelial staining) for the epithelial, and stromal ti ssues on each Attained results as follows : 1 1n nonna l minor saliva ry gla nds , it is noted that negative responses on the acini minimal res ponses in nucl ei and cytoplams of se rous demilun e, myoepi theli al cells, and intensive r esponses in nuclei and cytoplam of ducta l cells to c-fos and c-jun, 2 1n the res ponses to c-fos, positive responses in nuclei and cytoplasms of the lining cells o[ the ad e nαd tissues, e pidermoid, and mucous cells in mucoepidermoid tumors are noted and in other tumor tissuses, negative nuclei wi th pos itive cyto plasms are revealed 3 1n the responses to c- jun, it is noted that positive r es ponse in nuclei and cytolasm i n the cells of adenoid tissues in pl eomorphic adenoma, epidermoid cell s, mucous cell in mucoe pi dermoid tumor but in other tumor s, only positive responses in cytoplasm are noted, Intensive r esponses on c-fos‘ c-jun were noted on the high a typical cells 1'his results suggest that c-fos and c-jun may be affected t o the reactivation on growt h and development of the salivary gland tumors
        4,000원
        164.
        2005.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study was to evaluate the role of c-fos and c-jun expression in the oral squamous cell carcinoma and ameloblastomas. For this study, 12 subjects diagnosed as squamous cell carcinoma and 7 subjects of ameloblastomas referred to the Dept. of Oral Path. School of Dentistry, Kyung Hee University, 2 subjects of normal oral mucosa without any inflammatory changes were used as experimental, control groups respectively. All the tissues ; experimental and control group were fixed in neutral formalin solution and embedded in paraffin, serial tissue section were made 5㎛ in thickness and processed in the standard way for immunohistochemical method, using primary and secondary antibodies, for c-fos (Anti-c-fos protein, rabbit polyclonal kit at 1:100 dilution), c-jun( anti-c-jun protein, rabbit polyclonal at 1:100 dilution), all BioGenex U.S.A. made, followed by the Streptavidin - Horse Radish Peroxidase(InnoGenex, Human-Avidin kit) application, counter stained with Mayer's hematoxylin stain method, mounted. And examined under the biologic microscope, with the criteria-(no epithelial stain), +(weak or focal epithelial stain), ++(moderate or focal intensive epithelial stain), +++(intense generalized epithelial staining) for the epithelial, and connective tissue component in squamous cell carcinomas, ameloblastomas and normal mucosal epithelium on each. Attained results as follows ; 1. In oral mucosa, c-fos and c-jun intensely expressed on the all cell layers except on the basal layer. Intense reaction is noted in the c-jun than in the c-fos. and a few cells with positive cytoplasm, negative nuclear are scattered in all layer. 2. The response to c-fos in ameloblastomas, is various according to the histological type, but intense resposes are nodted in nuclear and cytoplasm on the tall columnar cells at the periphery of the follicles compare to that on the stellate cells. 3. The respone to c-fos in squamous cell carcinoma, intense reaction is noted in cytoplasm and nuclei of the tumor cells in well differentiated, poorly differentiated type. 4. The response to c-jun in ameloblastoma, it is noted that moderate respone in nuclear and cytoplasm, at the tall columnar cells at the periphery of follicular or plexiform type but intense respone was notes on the columnar cells, and stellate cell in cytoplasm and nuclear of acanthomatous type. 5. The respon to c-jun in squamous cell carcinoma, it is noted that intensive responses only in cytoplasm in well differentiated type, but intensive responses in nuclei and cytoplasm in the poorly differentiated type are revealed. Intensive responses on c-fos, c-jun were noted on the high atypical cells. This results suggest that c-fos and c-jun may be affected to the reactivation on growth and development of the squamous cell carcinoma.
        4,300원
        165.
        2005.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Odontogenic ghost cell tumor (OGCT) is considered as a neoplastic counterpart of the calcifying odontogenic cyst (COC). β-catenin mutations have been described in COC suggesting a critical role in its histogenesis. In this study, we report a patient with OGCT contains a missense mutation on codon 3 (ACT -> TCT). Immunohistochemistry showed nuclear, cytoplasmic, and membranous accumulation of β-catenin in the tumor cells. TUNEL assay showed positive signals in nucleated cells adjacent to the ghost cells. Our data suggest that β-catenin plays an important role in the tumorigenesis of OGCT. OGCT may developed by improper differentiation process coordinated by WNT signaling pathway. Further studies are needed to determine a genotypic/phenotypic characteristics of ghost cell containing odontogenic lesions.
        4,000원
        167.
        2005.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        경북 안동지역의 10개 하천 및 하천 주변으로부터 2004년 5월에 물, 토양, 퇴적물의 시료를 채취하였다. 이들 지역의 환경오염 수준을 평가하기 위해 표준공정시험법이나 U.S. EPA 법을 이용하여 시료 중의 총질소, 총인, 화학적 산소요구량, 중금속, 유기인 및 유기염소계 잔류농약, 그리고 dioxin-like PCBs 등의 오염물질의 분석을 실시하였으며, 이와 더불어 파밤나방(Spodoptera exigua)을 이용한 면역교란의 생체지표 분석을 병행하였다. 일반적으로 총질소가 9.12 mg/L 수준의 와야천을 제외하고는, 각 하천 중의 총질소, 총인, 화학적 산소요구량은 환경부에서 정한 허용기준치보다는 비교적 낮았다. 각 하천 시료 중의 납과 카드뮴의 함량은 허용 기준보다도 매우 낮았지만, 하천에 따라 차이가 있어서 미천, 길안천, 현하천의 납과 카드뮴 함유량은 다른 하천의 시료들에 비해서 몇 배 이상 높게 검출되었다. 잔류농약은 미천 주변의 토양에서 유기인계 살충제인 다이아지논, 파라치온, 그리고 펜토에이트가 0.19, 0.40, 농도로 검출되었다. 반면에 내분비계 교란물질로 알려져 있는 16종의 유기염소계 농약과 12종의 dioxin-like PCB congeners는 검출한계 미만으로는 확인할 수 없었다. 그러나 와야천의 시료에 대한 곤충면역 교란효과를 고려해 볼 때, 이 하천의 수질과 주변의 토양이 조사한 오염원 이외의 화합물에 오염되어 있을 가능성을 제시해 준다. 이상의 분석 결과를 토대로 화학적 및 생물학적 검정 기술의 제약점과 상호 보완성이 기술되었다
        4,300원
        169.
        2004.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The puφose of this study was to evaluate the role of EGF(Epidermal Growth Factor), EGFR(Epidermal Growth Factor Receptor), aFGF(acidic Fibroblast Growth Factor or FGF-1), bFGF(basic Fibroblast Growth Factor or FGF-2), FGFR(Fibroblast Growth Faαor Receptor), and VEGF(Vascular Endothelial Growth Factor) in the development of the human ameloblastomas For this study 9 subjects, diagnosed as ameloblastomas referred to the Dept. of Oral Path. College of Dentistry, Kyung Hee University, 2 subjeαs of normal oral mucosa with any inflammatory changes were used as experimental, control groups respectively. All the tissues ; experimental and control group were fixed in 10% neutral formalin solution and embedded in paraffm, serial tissue section were made 하1m in thickness and processed in the standard way for immunohistochemical method, using primary and secondary antibodies, for EGF(Antirabbit Ig G, rabbit kit at }:1oo dilution), EGFR(Antimouse Ig G, mouse kit at 1:100 dilution), aFGF(Antirabbit Ig G, rabbit kit at 1:100 dilution), bFGF(Antirabbit Ig G, rabbit kit at 1:100 dilution), FGFR(Antimouse Ig G, mouse kit at 1:100 dilution) , and VEGF(Antirabbit Ig G, rabbit kit at 1:100 dilution), all BioGenex U.S. A. made, followed by the Streptavidin - Horse Radish Peroxidase(InnoGenex, Human-avidin kit) appli때on , counter stained with Mayer’s hematoxylin stain method. And examined under the biologic microscope, graded -(no epithelial stain), +(weak or focal epithelial stain), ++(moderate or focal intensive epithelial stain), +++(intense generalized epithelial staining) for the epithelial, and connective 따sue component in ameloblastomas and in normal mucosal epithelium on each. Attained results as follows ; 1. EGF, EGFR, aFGF, bFGF, FGFR, and VEGF showed more intense stainability on experimental group compare t,。 that on the control group. 2. EGF, EGFR, aFGF, bFGF, FGFR, and VEGF showed more intense stainability in epithelial component and more intensely stained on the peripheral ce11s of the ameloblastomas. 3. EGF, EGFR, aFGF, bFGF, FGFR, and VEGF showed positive stainability on the stromal tissues but its level is lower compare to that on the epithelial components. Those results suggested that those growth factors take a role in development and progression on the amelob비las와tomas
        4,500원
        170.
        2004.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        국내에서 재배되고 있는 약용버섯인 상황(P. baumii) 자실체의 열수 추출물로 부터 건강 기능성 식품 및 의약품개발의 기초자료를 제공하고자 항암실험 및 면역효과에 대한 실험을 수행하였다. 본 연구에서 사용한 PMO-P4의 경우 rDNA의 ITS부위의 염기서열 분석을 통한 계통분석결과 P. baumii로 판명 되었으며, PMO-P4 자실체로부터 열수 추출한 성분(HWE-P4)을 160mg/kg/day의 농도로하여 Sarcoma-180 암세포를 유발한 마우스에 경구투여한 결과 A군의 경우, 종양억제효과는 35.3%로 대조군보다 유의성 있게 감소하였으며(p<0.05), 생명연장 효과는 156%증가한 것으로 나타났다. 시료의 경구투여 방법에 있어서도 시료를 먼저 2주간 투여한 후 암세포를 접종한 A군의 경우가 시료 투여와 암세포 접종을 동시에 실시한 B군의 경우 보다 종양억제효과 및 생명연장효과가 높았음을 알 수 있었다. A군의 경우 대조군에 비하여 CD4/CD8의 비율이 71.4%증가 하였으며, CD25(IL-2receptor chain)분자의 발현을 5배정도 증가시키는 것으로 관찰되었다. 이러한 결과로 보아 P. baumii로 밝혀진 PMO-P4 자실체로부터 열수 추출한 성분의 항암효과는 암세포를 직접 공격하여 항암효과를 나타내기 보다는 T cell등의 면역세포를 활성화시킴으로써 암세포를 억제 혹은 사멸시키는 것으로 생각된다.
        4,000원
        174.
        2004.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        까le purpose of this study was to evaluate the role of EGF(Epidermal Growth Factor) , EGFR(Epidemlal Growth Factor Receptor), aFGF(acidic Fibroblast Growth Factor, FGF-1), bFGF(basic Fibroblast Growth Factor, FGF-2), FGFR(Fibroblast Growth Factor Receptor), and VEGF(Vascular Endothelial Growth Factor) 띠 the development of the oral squamous cell carcinoma. For this study 6 subjects, diagnosed as squamous cell carcinoma refelTed to the Dept. of Oral Path. College of Dentistry, Kyung Hee University, 2 subjects of normal 이띠 mucosa with any inflammatolY changes were used as expelimental, control groups respectively. AlI the 디ssu es ; expe디me nta l and control group were fixed in 100;ú neutral fOlmalin solution and embeclded in paraffìn , seIial tissue section were made 511m in thickness ancl processecl in the standard way for immunohistochemical methocl, using primary ancl seconclalY antibodies, for EGF(Antirabbit Ig G, rabbit kit at 1:100 dilution), EGFR(Antimouse Ig G, mouse kit at 1:100 dilution), aFGF(Antirabbit Ig G, rabbit kit at 1:100 dilution), bFGF(Antirabbit Ig G, rabbit 써t at 1:100 dilution), FGFR(Antimouse Ig G, mouse kit at 1:100 dilution), ancl VEGF(Antirabbit Ig G, rabbit kit at 1:100 clilution), all BioGenex U.S.A. macle, followed by the Stre ptavidin - Horse Radish Peroxidase(InnoGenex, Human-avidin kit) application, counter stained with Mayer’s hematoxylin stain method. And examined under the biologic microscope, -(no epithelial stain), +(weak or focal epithelial stain), ++(mode rate or focal intensive epithelial stain), +++(intense generalized epithelial staining) for the epithelial, and connective tissue component in squamous cell carcinoma and in nomlal mucosal epithelium on each. Attained results as follows ; 1. It is noted that more intensed reactio n EGF, EGFR, aFGF, bFGF, FGFR, and VEGF on experimental group compare to that on the control group. 2. Increased reaction is noted on the tumor components compare to that in the stromal tissues. 3. Intensed reaction is noted on the basement membrane adjacent to cancer nest to EGF, EGFR, aFGF, bFGF, FGFR, and VEGF 4. It is noted that intensed positive reaction on cancer pearls, cancer components with hyperactivities, in cancer nest. And at the peIiphelY of cancer nest, diffuse moclerate reaction to EGF, EGFR, aFGF, bFGF, FGFR, and VEGF is notecl This results suggest that EGF, EGFR, aFGF, bFGF, FGFR, and VEGF mJy be effectecl to the growth ancl clevelopment of the squamous cell carcinoma.
        4,600원
        176.
        2004.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In most tissues, apoptosis plays a pivotal role in normal development and in regulation of cell number. Therefore inappropriate apoptosis is revealed in a variety of diseases. This study was carried out to investigate the effects of acupuncture and needle electrode electrical stimulation on the change of caspase-3, 9 and neuronal nitric oxide synthase (nNOS) immunoreactive cells in the sprague dawley rats (SD rat). In immobilized SD rats (n=5), enhanced caspase-3 and caspase-9 expression were detected in the reticular part of substantia nigra, and enhanced nNOS was detected in the dorsolateral periaqueductal gray (DL-PAG) of midbrain and the paraventricular nucleus (PVN) of the hypothalamus using immunohistochemistry. Following the immobilization, acupuncture (n=5) and needle electrode electrical stimulation (n=5, 2 Hz) was applied at Hg (LI4) acupoint of SD rats, respectively. The stress-induced enhancement in the expression of caspase-3, 9 and nNOS were The present results demonstrate that and needle electrode electrical stimulation are effective in the modulation of expression of caspase-3, 9 and nNOS induced by immobilization.
        5,100원
        177.
        2003.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        곤충병원세균이 효과적으로 병원력을 발휘하는 데 대상 곤충의 면역저하가 요구될 수 있다. 본 연구는 대상곤충의 면역저하가 병원세균의 살충능력에 직접 연관된다는 가설을 세웠다. 곤충병원세균을 5령 누에(Bombyx mori)의 혈강에 접종하였을 때, X. nematophilus는 다른 곤충병원세균인 Staphyiococcus gallinarum 보다 1,200배 높은 병원력을 보였다. 비록, 두 곤충병원세균은 누에의 혈구세포에 대해서 독성효과를 가지고 있지만, X. nematophiius는 S. gallinarum과 비교해보다 빠르고 높은 세포독성 영향을 보였다. 세포성 면역반응에서 5농도로 세균이 접종되었을 때, 누에는 약 20개 정도의 소낭을 형성하였다. 특히, 살아있는 X. nematophilus가 접종된 누에에서 소낭 형성은 크게 감소하였지만, S. gullinarum은 소낭 형성 감소에 영향을 주지 않았다. 두 세균 모두는 prophenoloxidase (proPO)의 활성화를 억제시켰다. 그러나 X. nematophilus.가 S. gallinarum보다 높게 PO 활성화를 억제시켰다. 라이소자임의 활성유도는 S. gallinarum접종 후 4시간에서 관찰되었으나, X. nematophilus를 접종하였을 때는 라이소자임의 활성이 전혀 관찰되지 않았다 이러한 결과들은 누에에서 X. nematophilus가 S. gallinarum보다 더 큰 면역저하를 유발하여 병원성을 높였다는 것을 보여준다. 따라서 본 연구는 곤충병원세균에 의해서 유발된 면역저하는 곤충병원세균의 병원성과 연관되어 있다는 것을 제시한다.다.
        4,000원
        178.
        2003.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The purpose of this study was to evaluate the role of EGF(Epidermal Growth Factor), EGFR(Epidermal Growth Factor Receptor), aFGF(acidic Fibroblast Growth Factor, FGF-1), bFGF(basic Fibroblast Growth Factor, FGF-2), FGFR(Fibroblast Growth Factor Receptor) in the development of radicular cyst. For this study 37 subjects, diagnosed as radicular cysts. referred to the Dept. of Oral Path. College of Dentistry, Kyung Hee University, were used as experimental group. And for control group, 2 subjects of normal oral epithelium without any inflammatory changes were used. All the tissues; experimental and control group were neutral formation fixed and paraffin embedded. serial tissue section were made at 5㎛ and processed in the standard way for immunohistochemical method, using primary antibodies against, EGF(Antirabbit Ig G at 1:100 dilution), EGFR(Antimouse Ig G at 1:100 dilution), aFGF(Antirabbit Ig G, rabbit kit at 1:100 dilution), bFGF(Antirabbit Ig G, mouse kit at 1:100 dilution), FGFR(Antimouse Ig G mouse kit at 1:100 dilution), all BioGenex U.S.A. made except EGFR(Chemicon U.S.A.) followed by the Streptavidin - Horse Radish Peroxidase (InnoGenex Human-avidin kit) application, counter stained with Meyer's hematoxylin stain method. And examined under microscope, graded 0(no epithelial stain), +(weak or focal epithelial stain), ++(moderate or focal intensive epithelial stain), +++(intense generalized epithelial staining) for the epithelium, and connective tissue of cyst wall. 1. EGF, EGFR, aFGF, bFGF, FGFR showed more intense staining on radicular cysts compare to that on the normal mucosa. 2. EGF, EGFR, aFGF, bFGF, FGFR stained in mucosa, submucosa of the control group and also stained on the lining epithelium, connective tissues of cyst wall in the experimental group. EGF, EGFR, aFGF, bFGF, FGFR take a part in the development of the radicular cyst.
        4,300원
        179.
        2003.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        식품으로부터 다양한 병원 미생물을 신속 검출하기 위하여 다양한 검출 원리를 이용한 키트들이 개발·시판되고 있다. 검사키트는 신속, 정확하고 간단하게 사용할 수 있으므로 검사기관이나 실험실 뿐 아니라 식품회사에서 QC 또는 QA를 수행하기 위하여 사용이 증가되고 있는 추세이다. 이에 본 연구에서 E. coli O157:H7의 단클론항체를 이용하여 면역크로마토그래피법에 의해 개발한 E. coli O157:H7 검출 키트(Donga Co, Korea, D-kit)에 대한 검출감도 및 특이성을 확인하고 식품 시료에 적용 가능성을 평가하였다. 면역크로마토그래피법에 의해 개발?시판되고 있는 Reveal E. coli O157:H7 (Neogen Co., USAm R-kit)와 VIP EHEC kit (Biocontrol INC., USA, V-kit)를 비교 키트로 사용하였다. E. coli O157:H7 표준균주를 사용하여 실시한 검출감도 확인시험 결과 R-kit 및 D-kit는 104/㎖의 농도에서 양성으로 확인되었고 10³/㎖에서도 약한 양성 반응을 보였으나, V-kit는 10?/㎖ 농도로 검출감도가 낮았다. 또한 배양액을 가열하여 kit에 적용하는 것이 가열하지 않은 경우보다 검출감도를 높일 수 있었다. E. coli O157:H7 분리 22주, verotoxin 생성 E. coli 7주 E. coli 분리주 40주 및 38종의 장내세균에 대한 특이성 시험 결과 세 가지 키트 모두에서 동일한 결과를 보였는데, 시험균주 107주 중 3주를 제외한 모든 균에서 음성의 결과를 보여 특이성을 확인하였다. 세 키트에 위양성 반응을 보인 것은 E. coli O157:H19, E. coli O157:H18 및 Salmonella galinarium으로 이들 혈청형과 O157:H7 사이에는 유사한 혈청학적 특성이 존재하는 것으로 추정되었다. 이상의 실험결과로 D-kit는 E. coli O157:H7을 검출하는데 감도 및 특이성 면에서 기존 키트인 R-kit 및 V-kit와 같이 유용한 것으로 확인되었다.
        4,000원
        180.
        2003.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        냉장식품의 주요한 변패원인균으로서 저온세균인 Pseudomonas areuginosa를 최소 전처리한 후 신속히 검출할 수 있는 비표지 면역센서 시스템을 개발하였다. 수정결정전극상으로의 생물요소인 항체의 고정화는 이형이기능성 가교화제인 sulfosuccinimidyl 6-[3-(2-pyridyldithio)propronamide]hexanoate를 사용하여 항체를 티올화시킨 후 티올화된 항체를 화학흡착하여 향하였고, P.areuginosa flagella에 대한 단클론항체를 사용하였을 때 다클론항체를 사용한 경우보다 센서감응이 우수한 것으로 나타났다. 항체가 고정화된 센서 chip과 flow형 quartz crystal microbalance 계측시스템을 이용하여 균 첨가 및 증균을 향한 10종의 모델시료에 대한 계측을 향하였다. 이 때, 시료자체에 의한 진동수변화가 52~89 Hz 범위인 반면 균 첨가 시에 나타난 진동수변화는 108~220 Hz이었고 증균시료에 의한 진동수변화는 162~222 Hz 범위로 나타났다. 시스템 안정화, 시료주입 및 정상상태의 센서반응 획득, 시스템 세척으로 이루어지는 한 주기의 센서계측에 소요된 시간으 모든 시료에 있어 30분 이내였다.
        4,000원