• 제목/요약/키워드: Iodine treatment

Search Result 191, Processing Time 0.028 seconds

Functional Improvement of Poly(Vinyl Alcohol) Polarized Film by $O_2$ Low Temperature Plasma Treatment (산소 저온 플라즈마 처리에 의한 PVA 편광필름의 기능성 개선)

  • Park, Young-Mi;Hwang, Jong-Ho;Gu, Kang
    • Textile Coloration and Finishing
    • /
    • v.16 no.3
    • /
    • pp.14-21
    • /
    • 2004
  • In this research, we accomplished in order to improving color fastness of sublimation for Poly (vinyl alcohol) (PVA)-iodine polarized film. The poor iodine sublimation problem has greatly improved by $O_2$ low temperature plasma treatment. We obtained the followings: (1) plasma treatment has contributed in adhesive ability via peel strength, AFM image and roughness were investigated, But the improvement in adhesive strength was not linearly proportional to the treatment time. (2) $O_2$ plasma treated PVA-iodine polarized film was good enough as to maintain the transmittance and polarization even after iodine cone. of 0.05mol/L and dipping time of 50sec. (3) $O_2$ low temperature plasma treated PVA-iodine polarized film has obtain high durability because of good adhesive strength.

Densification Behavior of C/C Composite Derived from Coal Tar Pitch with Small Amount of Iodine Addition (석탄계 피치에 요오드를 소량 첨가하여 제조한 탄소복합재의 치밀화 거동)

  • Cho, Kwang-Youn;Riu, Doh-Hyung;Shin, Dong-Geun;Joo, Heyok-Jong;Koo, Hyung-Hoi;Park, In-Seo
    • Journal of the Korean Ceramic Society
    • /
    • v.46 no.6
    • /
    • pp.643-647
    • /
    • 2009
  • We investigated the viscosity behavior and the carbon yield of coal tar pitch (CTP) treated with iodine. The viscosity of iodine treated pitch showed that the fluidity of iodine treated CTP did not increase within the iodine addition of 1.4%. DTG analysis showed that cross linking was accelerated at the temperature range from $400\;to\;500{^{\circ}C}$ with iodine treatment, which is due to the accelerated dehydrogenative reaction by iodine. The iodine treatment was mainly effective for β-resin content increase of CTP. The carbon yield of CTP increased from 40 to 60% by the iodine non-treated CTP.

Effects of Some Drugs on Bovine Interdigital Dermatitis (젖소의 지간부란(趾間腐爛)에 대한 치료시험(治療試驗))

  • Oak, Chong Wha
    • Korean Journal of Veterinary Research
    • /
    • v.15 no.2
    • /
    • pp.321-325
    • /
    • 1975
  • Trials of therapeutic examination with yuhyangsan, tnicture of iodine and Villat's solution were attempted on 12 dairy cows suffering from interdigital dermatitis In the yuhyangsan treatment group, tincture of iodine group and Villat's group, 4 cases of diseased cow were allocated, respectively, and those drugs were locally applied. In the yuhyanson treated group, all of the cases were recovered by the sixth treatment, In the tnicture of iodine treated group, 2 cases of diseased cow were recovered by the sixth treatment. In the Villat's treated group, all of cases were not recovered by the sixth treatment.

  • PDF

Structural and Physical Properties of Antheraea pernyi Silk Fibroin Fiber Treated with $I_2-KI$ Aqueous Solution

  • Khan Md. Majibur Rahman;Gotoh Yasuo;Morikawa Hideaki;Miura Mikihiko
    • Fibers and Polymers
    • /
    • v.7 no.4
    • /
    • pp.333-338
    • /
    • 2006
  • Silk fibroin (SF) fiber from the Antheraea pernyi silkworm was treated with a 1.23 N iodine-potassium iodide ($I_2-KI$) aqueous solution, and the structure and physical properties were investigated to clarify the effects of the iodine treatment. The noticeably high weight gain value of SF fiber, about 25 wt% was attributed to the absorption of polyiodide ions in the form of $I_3{^-}\;and\;I_5{^-}$. Fourier transform infrared spectroscopy and X-ray diffraction measurements suggested that polyiodide ions mainly entered the amorphous region. In addition, a new sharp reflection on the meridional direction, corresponding to a period of $7.0{\AA}$, was observed and indicated the possibility of the formation of mesophase structure of ${\beta}$-conformation chains. Dynamic viscoelastic measurements showed that the damping tan ${\delta}$ peak at $270^{\circ}C$ gradually shifted to lower temperature in the iodinated SF fibers, suggesting an enhancement of the molecular motion of the fibroin chains induced by the presence of polyiodide ions. With heating above $254^{\circ}C$, the iodine component introduced intermolecular cross-linking of SF, and the melt flow of the sample was inhibited. The thermal decomposition stability of fibroin molecules was greatly enhanced by iodine treatment.

Treatment of Differentiated Thyroid Cancer (분화된 갑상선암의 치료)

  • Shong, Young-Kee
    • 대한핵의학회:학술대회논문집
    • /
    • 2002.05b
    • /
    • pp.77-95
    • /
    • 2002
  • During the last several decades, prognosis of differentiated thvroid cancers improved markedly, mainly due to refinement of surgical techniques and routine use of radioactive iodine. Total or neat-total thyroidectomy is to be performed as the first line of treatment. Routine remnant ablation just after surgery decreases recurrence and increases survival. After then patients are maintained on suppressive dose of thyroid hormone to keep endogenous TSH below normal. Regular follow-up of the patients with serum thyroglobulin measurement and iodine whole body scan after thyroid hormone withdrawal or under recombinant human thyrotropin stimulation select high risk patients with recurrence or metastatic disease and treatment with therapeutic dose of radioactive iodine prolongs survival and sometimes leads cure. Currently recommended diagnostic and therapeutic strategies, present controversies and future directions are discussed.

  • PDF

Imaging of Tumor Proliferation Using Iodine-131-Iodomethyluridine (Iodine-131-Iodomethyluridine을 이용한 종양세포증식의 영상화에 관한 실험적 연구)

  • Min Kyung-Yoon;Kim, Chang-Guhn;Kim, Hyun-Jeong;Lim, Hyung-Guhn;Rho, Ji-Young;Juhng Seon-Kwan;Won Jong-Jin;Yang, David J.
    • The Korean Journal of Nuclear Medicine
    • /
    • v.30 no.3
    • /
    • pp.344-350
    • /
    • 1996
  • Purpose : Noninvasive imaging of tumor cell proliferation could be helpful in the evaluation of tumor growth potential and could provide an early assessment of treatment response. Radiolabeled thymidine, uridine and adenosine have been used to evaluate tumor cell proliferation. These nucleoside analogs are incorporated into DNA during proliferation. Iodine-131-Iodomethyluridine, an analog of Iodine-131-Iododeoxyuridine, is also involved in DNA/RNA synthesis. The purpose of this study was to develop Iodine-131-Iodomethylurdine and image tumor proliferation using Iodine-131-Iodomethyluridine. Materials and Methods : Radiosynthesis of Iodine-131-5-Iodo-2'-O-methyluridine (Iodine-131-Iodomethyluridine) was prepared from 10 mg of 2'-O-methyluridine(Sigma chemical Co., St. Louis, Missouri) and 2.1 mCi(SP. 10Ci/mg) of Iodine-131-labeled sodium iodide in $100{\mu}l$ of water using iodogen reaction. Female Fischer 344 rats were inoculated in the thigh area with breast tumor cells(13765 NF, $10^5$ cells/rat S.C.). After 14 days, the Iodine-131-Iodomethyluridine $10{\mu}Ci$ was injected to three groups of rats(3/group). The percent of injected dose per gram of tissue weight was determined at 0.5-hours, 2-hours, 4-hours, and 24-hours respectively. Tumor bearing rats after receiving Iodine-131-Iodomethyluridine($50{\mu}Ci$ IV) were euthanized at 2 hours after injection. Autoradiography was done using freeze-dried $50{\mu}m$ coronal section. After injection of Iodine-131- Iodomethyluridine ($10{\mu}Ci$/rat, IV) in three breast tumor-bearing rats, planar scintigraphy was taken at 45 minutes, 90 minutes and 24 hours. Results : Iodine-131-Iodomethyluridine was conveniently synthesized using iodogen reaction. The biodistribution showed fast blood clearance and the tumor-to-tissue uptake ratios showed that optimal imaging time was at 2 hours postinjection. Autoradiogram and planar scintigram indicated that tumor could be well visualized. Conclusion : The findings suggest that Iodine-131-Iodomethyluridine, a new radio-iodinated nucleoside, has potential use for evaluation of active regions of tumor growth.

  • PDF

Effect of Iodine-131 Administration on the Liver of Guinea Pig (방사성 옥소(131I)가 Guinea Pig의 간장에 미치는 영향)

  • Lee, Heung Shik;Lee, Kang Wook
    • Korean Journal of Veterinary Research
    • /
    • v.12 no.1
    • /
    • pp.15-19
    • /
    • 1972
  • This experiment was carried out to investigate the effect on the liver of guinea pig after administration of 4.5mCi per Kg. body wt. with iodine-131. The histological changes in the liver were degeneration of hepatic cells, congestion of sinusoids, dilatation of bile ducts, perivascular infiltration of lymphocytes, and dissociation of hepatic cords. A marked histological changes were produced after treatment for 14 days and the morphological recoveries were observed 28 days after the treatment.

  • PDF

Study on the Mechanism and Modeling for Super-filling of High-Aspect-Ratio Features with Copper by Catalyst Enhanced Chemical Vapor Deposition Coupled with Plasma Treatment (플라즈마 처리와 결합된 Cu 촉매반응 화학기상증착법의 메커니즘과 고종횡비 패턴의 충진양상 전산모사에 대한 연구)

  • Kim, Chang-Gyu;Lee, Do-Seon;Lee, Won-Jong
    • Korean Journal of Metals and Materials
    • /
    • v.49 no.4
    • /
    • pp.334-341
    • /
    • 2011
  • The mechanism behind super-filling of high-aspect-ratio features with Cu by catalyst-enhanced chemical vapor deposition (CECVD) coupled with plasma treatment is described and the metrology required to predict the filling feasibility is identified and quantified. The reaction probability of a Cu precursor was determined as a function of substrate temperature. Iodine adatoms are deactivated by the bombardment of energetic particles and also by the overdeposition of sputtered Cu atoms during the plasma treatment. The degree of deactivation of adsorbed iodine was experimentally quantified. The quantified factors, reaction probability and degree of deactivation of iodine were introduced to the simulation for the prediction of the trench filling aspect by CECVD coupled with plasma treatment. Simulated results show excellent agreement with the experimental filling aspects.

The Experience of Receiving Radioactive Iodine Therapy among Thyroid Cancer Patients (갑상선암 환자의 방사성요오드 치료경험)

  • Kang, Kyung Ok;Kim, Hyun Kyung;Kim, Ji Young;Lim, Seok Tae
    • Journal of East-West Nursing Research
    • /
    • v.22 no.2
    • /
    • pp.148-157
    • /
    • 2016
  • Purpose: The purpose of this study was to explore the meaning of the experience of receiving radioactive iodine therapy among patients with thyroid cancer. Methods: A qualitative research design was adopted. The participants were ten women diagnosed with thyroid cancer who had received radioactive iodine therapy within one year. Data were collected through in-depth interviews from October of 2015 to April of 2016. Individual interviews were recorded, and transcribed data were analyzed using Colaizzi's method. Results: The six categories of the experience of receiving radioactive iodine therapy were "Finally realizing having cancer," "The lonely fight that feels like prison life," "Narrower scope of life," "Lack of understanding by others," "Enduring a short, yet difficult journey," and "A turning point for a new life." Conclusion: This study provides deep insight into the experience of thyroid cancer patients who had received radioactive iodine therapy. Nurses should concern their distress during radioactive iodine treatment and manage psychological difficulties as well as physical symptoms. Support from family and health care providers may help them to overcome the hard journey.

Acute Myelogenous Leukemia Developed after Radioactive Iodine Therapy and Palliative Radiation Therapy in Metastatic Papillary Thyroid Cancer (갑상선 유두암환자에서 방사성 옥소 치료와 고식적 방사선 치료 후 발생한 급성 골수성 백혈병)

  • Ko, Tae-Young;Kwag, Jae-Sik;Oh, Kyung-Suk;Lee, Seung-Bai;Chung, Byung-Sun;Kim, Eun-Sil;Kim, Chong-Soon
    • The Korean Journal of Nuclear Medicine
    • /
    • v.32 no.5
    • /
    • pp.436-442
    • /
    • 1998
  • Radioactive iodine treatment has been widely used for nearly 50 years in the treatment of thyroid cancer to ablate residual thyroid tissue after thyroidectomy and to treat metastatic disease. Leukemia is a rare complication associated with the radioactive iodine therapy. The occurrence of leukemia is known to be related to the cumulative dosage of I-131 more than 37 GBq (1 Ci) and also associated with the intervals of less than 12 months between the repeated doses. We report a case of a 52 year-old female patient with papillary cancer of thyroid who developed acute myelogenous leukemia after the total 20.4 GBq (550 mCi) of I-131 therapy over 3.2 years and palliative radiation therapy (3000 cGy) due to multiple bone metastasis of papillary cancer.

  • PDF