• 한국자원식물학회지
• /
• 제17권3호
• /
• pp.289-296
• /
• 2004

더덕의 뿌리로부터 aluminum스트레스와 관련이 있는 aluminum induce protein(ClAIP)유전자를 분리하였다. ClAIP 유전자의 염기서열를 분석한 결과 906 bp 길이로, 236개의 아미노산으로 번역되는 711bp의 ORF를 가지고 있으며, A. marina(84%), G. hirsutum(84%), V. radiata(83%), A. thaliana(80%), B. hapus(78%), T. aestivum(68%) 등 다른 식물에서 밝혀져 있는 aluminum induce protein과 높은 상동성을 나타내었고, N-terminal에는 Asn synthetase영역이 존재하고 있다. 더덕에서 분리한 aluminum induced protein(ClAIP)을 aluminum처리 농도와 시간에 따른 ClAIP유전자의 발현양상을 알아보고자 50uM $Al^{3+}$ 를 처리 후 시간대별로 RT-PCR을 수행한 결과 시간이 지남에 따라 ClAIP유전자의 발현이 증가되는 것으로 나타났다 중금속, 염 , 온도에 대한 유전자의 발현양상을 조사하기 위 해 50uM CdCl,$_2$, 20 uM CuSO$_4$, 50uM Fe$_2$O$_3$, 100 uM NaCl를 2일과 42$^{\circ}C$에서 4시간 처리 후 발현량을 조사한 결과 카드뮴(Cd)에 대해서 특이적으로 반응하는 것으로 나타났다.

• Bulletin of the Korean Chemical Society
• /
• 제34권9호
• /
• pp.2597-2603
• /
• 2013

The reactions of hydrated $CdCl_2$, $MnCl_2$, and $NiCl_2$ with 2,2'-bipyidine-3,3',6,6'-tetracarboxylic acid ($H_4bptc$) afforded the mononuclear [$Cd^{II}(H_2bptc)(H_2O)_3]{\cdot}H_2O$ (1), linear $\{[Cd(H_2bptc)(H_2O)]{\cdot}3H_2O\}_n$ (2), 3-D heterobimetallic $[NaCd(Hbptc)(H_2O)]$ (3), layer $[Mn(H_2bptc)(H_2O)]_n$ (4) and a dinuclear compound $[Ni_2(H_2bptc)-(H_2O)_2]{\cdot}6H_2O$ (5). These compounds have been characterized by elemental analysis, IR, and their structures have been determined by X-ray crystallography. The thermal stabilities of 1-3 were measured by thermogravimetric analysis (TGA) and their solid state luminescence properties together with the free ligand $H_4bptc$ were investigated at room temperature.

• 대한화학회지
• /
• 제47권4호
• /
• pp.370-375
• /
• 2003

보라색 발광 다이오드에 의해 여기되어 청색, 녹색, 적색을 발광하는 형광체로 각각 $BaMg_2Al_16O_27:Eu,\SrGa_2S_4:Eu$, ZnCdS:Ag,Cl 형광체를 선택하였다. 보라색 발광 다이오드의 발광에서 형광체에 의해서 완전히 흡수되지 않고 나오는 보라색 발광과 $BaMg_2Al_16O_27:Eu,\SrGa_2S_4:Eu$, ZnCdS:Ag,Cl 형광체에서 나오는 청색, 녹색, 적색 발광을 조합하여 사파장 백색 발광 다이오드를 만들었다. 사파장 백색 발광 다이오드의 발광 특성을 확인하였다.

• 한국수소및신에너지학회논문집
• /
• 제13권3호
• /
• pp.224-232
• /
• 2002

CdS-$TiO_2$ nano-composite sol was prepared by the sol-gel method in organic solvents at room temperature and further hydrothermal treatment at various temperatures to control the physical properties of the primary particles. Again, CdS-$TiO_2$ composite particulate films were made by casting CdS-$TiO_2$ sols onto $F:SnO_2$ conducting glass and then heat-treatment at $400^{\circ}C$. Physical properties of these 61ms were further controlled by the surface treatment with $TiCl_4$, aqueous solution. The photo currents and hydrogen production rates measured under the experimental conditions varied according to the $CdS/[CdS+TiO_2]$ mole ratio and the mixed-sol preparation method. For $CdS-TiO_2$ composite sols prepared in IPA, CdS particles were homogeneously surrounded by $TiO_2$ particles. Also, the surface treatment with $TiCl_4$ aqueous solution caused a considerable improvement in the photocatalytic activity, probably as a result of close contacts between the primary particles by the etching effect of $TiCl_4$. It was found that the photoelectrochemical performance of these particulate films could be effectively enhanced by this approach.

• 한국진공학회지
• /
• 제10권1호
• /
• pp.57-60
• /
• 2001

우리는 술폭시화디메틸에 $_CdCl2$와 S를 포함하는 전해질로부터 양극산화된 알루미나 막의 세공 안으로 반도체를 직접 전착하여 5$\mu\textrm{m}$까지의 길이와 20nm의 작은 직경의 균등한 CdS 나노선 배열을 제조하였다. 나노선 배열은 주사전자현미경법과 X-선회절에 의해 연구되었다. 전착된 물질은 주로 (100) 우선방위를 지닌 육방정계 CdS로 이루어져 있다.

• 한국전기전자재료학회:학술대회논문집
• /
• 한국전기전자재료학회 1989년도 춘계학술대회 논문집
• /
• pp.59-61
• /
• 1989

The cell parameters of the sintered CdS/CdTe solar cells in which te CuCl$_2$was added in the carbon paste after the sintering of the CdS/CdTe composites an were annealed at 35$0^{\circ}C$ for 10 min in nitrogen are investigated. Voc and FF do not change significantly as the CuCl$_2$increasing up to 500 ppm, Jsc increases with futher increase in copper. The hole concentration, determined by C-V measurement, increases to $1.5\times$10$^{16}$ ㎤ as the copper increased to 25 ppm and then stays at about the same value with further increase in copper.

• 한국동물생명공학회지
• /
• 제36권3호
• /
• pp.121-128
• /
• 2021

Increasing the efficiency of HR (homologous recombination) is important for a successful knock-in. Rad51 is mainly involved in homologous recombination and is associated with strand invasion. The HR-related mismatch repair system maintains HR fidelity by heteroduplex rejection and repair. Therefore, the purpose of this study is to control Rad51, which plays a critical role in HR, through UV-induced DNA damage. It is also to confirm the effect on the expression of MMR related genes (Msh2, Msh3, Msh6, Mlh1, Pms2) and HR-related genes closely related to HR through treatment with the MMR inhibitor CdCl₂. The mRNA expression of Rad51 gene was confirmed in both HC11 cells and mouse testes, but the mRNA expression of Dmc1 gene was confirmed only in mouse testes. The protein expression of Rad51 and Dmc1 gene increased in UV-irradiated HC11 cells. After 72 hours of treatment with 1 ㎛ of CdCl₂, the mRNA expression level of Msh3, Pms2, and Rad51 decreased, but the mRNA expression level of Msh6 and Mlh1 increased in HC11 cells. There was no significant difference in Msh2 mRNA expression between CdCl₂ untreated-group and the 72 hours treated group. In conclusion, HR-related gene (Rad51) was increased by UV-induced DNA damage. Treatment of the MMR inhibitor CdCl₂ in HC11 cells decreased the mRNA expression of Rad51.

• 자원리싸이클링
• /
• 제9권4호
• /
• pp.3-15
• /
• 2000

전기로 더스트 중에 함유된 Zn, Pb, Cl, Fe, Cu 및 Cd의 건식 환원반응기구를 규몽하고자 탄소뿔 첨가한 더스트 Briquette를 제조하여 Ar 가스 분위기 하의 $800^{\circ}C$ ~ $1100^{\circ}C$반응온도에서 실험을 행하였다. 탄소에 의한 Zn 화합물으 환원반응은 온도상승에 따라 민감하게 나타났으며 반응초기에는 화학반응에 의한 음속단계로 활성화에너지 값은 약 120.6 kl/mole이었다. 한편, Pb와 Cl은 $PbCl_2$의 형태로 휘발되었으며 이들의 휘발제거율은 거의 일치하였다. 또한, 환원제를 첨가하지 않는 경우가 환원제 첨가시 보다 휘발제거율이 빨라 Pb의 대부분은 염화휘발에 의해 제거됨을 알 수 있었다. Cu는 염화휘발에 의해 최대 약 30% 제거되고 나머지 대부분은 Fe와 함께 더스트 중에 잔존하여 Cd은 $1000^{\circ}C$에서 15분만에 거의 100%의 휘발제거율을 나타내었다.

• 분석과학
• /
• 제20권5호
• /
• pp.406-412
• /
• 2007

분광 광도법을 이용하여 ${\beta}$-CD와 $[Cu(dien)(sub-py)]^{2+}$ 이온 간의 복합체 형성에 관한 연구를 하였다. ${\beta}$-CD와 $Cu^{2+}$ 착물이 복합체를 형성 할 때 ${\gamma}_{max}$은 리간드에 전자 주는기($CH_3$)가 치환 된 경우는 $^2T_2{\rightarrow}^2E$로 한 곳에서, 전자 끄는기(Cl)가 치환된 경우는 $^2T_2{\rightarrow}^2E$와 MLCT에 의하여 두 곳에서 나타났다. 형성상수는 온도가 올라가면 결합에너지의 감소로 작아졌다. 모든 반응은 엔트로피의 감소를 보였으나 큰 발열반응으로 자발적 반응이었다. 치환기 상수(${\sigma}_x$)에 따른 Hammett plot 결과 좋은 직선성(${\gamma}=0.996$)을 보여 형성상수를 정량적으로 설명할 수 있었다.

• Clinical and Experimental Reproductive Medicine
• /
• 제47권3호
• /
• pp.168-179
• /
• 2020

Objective: This study investigated testicular oxidative stress status and physiomorphological function in Wistar rats fed with yaji and cadmium chloride (CdCl₂). Methods: Sixty male albino Wistar rats (12 per group) were randomly assigned to five groups: group I (control), group II (300 mg/kg.bw of yaji), group III (500 mg/kg.bw of yaji), group IV (2.5 mg/kg.bw of CdCl₂), and group V (2.5 mg/kg.bw of yaji+4 mg/kg.bw omega-3). Each group was evenly subdivided into two subgroups and treatment was administered for 14 days and 42 days, respectively. Semen quality (sperm count, progressive motility, normal morphology, and gonadosomatic index), hormones (testosterone, follicle-stimulating hormone, and luteinizing hormone), testicular oxidative stress markers (superoxide dismutase, catalase, glutathione peroxidase, and malonaldehyde) and testicular histomorphological features were examined. Results: Yaji caused significant (p< 0.05) dose- and duration-dependent reductions in semen quality, the gonadosomatic index, testosterone, follicle-stimulating hormone, and luteinizing hormone. Yaji also caused significant (p< 0.05) dose- and duration-dependent decreases in superoxide dismutase, catalase, and glutathione peroxidase activity, as well as increased testicular malonaldehyde levels. Yaji induced distortions in the testicular histological architecture. CdCl₂ damaged testicular function by significantly (p< 0.05) reducing semen quality, reproductive hormone levels, and oxidative stress markers in albino Wistar rats. CdCl₂ also altered the histology of the testis. Conclusion: This study shows that yaji sauce has similar anti-fertility effects to those of CdCl₂, as it adversely interferes with male reproduction by impairing oxidative stress markers and the function and morphological features of the testis.