in this work, zeolite nay was prepared by hydrothermal method. then, silver ions were replaced in the zeolite nay with silver nitrate (agno3) solution via using ion exchange (ie) method. the manganese dioxide (mno2) nanoparticles (9.3 and 15.8 wt %) for guest were deposited in the zeolite agy(host) structure with mn(no3)2 aqueous and kmno4 solutions by confined space synthesis (css) method. syn...

The quenching of quinine fluorescence intensity in the presence of some anions in aqueous solution at ambient temperature has been investigated. The quenching is found to be collisional or dynamical in nature. This study reveals the order of two groups of quencher: NaI > NaBr > NaCl > NaF and K2Cr2O7 > KMnO4 >Na2SO4 > NaClO3. Increasing anion size in the both groups leads to an  increase in the...

In this work, zeolite NaY was prepared by hydrothermal method. Then, silver ions were replaced in the zeolite NaY with silver nitrate (AgNO3) solution via using ion exchange (IE) method. The Manganese dioxide (MnO2) nanoparticles (9.3 and 15.8 wt %) for guest were deposited in the zeolite AgY(host) structure with Mn(NO3)2 aqueous and KMnO4 solutions by confined space synthesis (CSS) metho...

Permanganate remediation was conducted in southern Florida at a small industrial site with TCE and 1,1,1-TCAcontamination down to 70 ft bgs in a sand aquifer. The permanganate solution was injected into the DNAPL source zone(30 ft diameter in plan view) where a small mass of residual TCE DNAPL caused this zone to have TCE concentrationsexceeding 10,000 μg/L, with small zones approac...

要 旨:酵 母 は厚い細胞壁 を有す るため、生物試料の固定に一般的 に用いられ る方法は適用できない ので、酵母の細胞生物学的研究 には、固定法の開発が必要であった。そ こで、過マンガ ン酸カ リウム (KMnO4)単 独固定法、グルタルアルデ ヒ ド-KMnO4二 重固定法、サン ドイ ッチ法 による急速凍結固 定技術 を開発 し、 さらに、加圧凍結法へ と固定法を発展させた。 この新技法を走査電子顕微鏡 と結び 付けて、「加圧凍結 ・極低温低加速電圧走査顕微鏡(HPF・ULT-LVSEM)法 」を開発 した。加圧凍 結技法 は抗原の保持 を増加させ るので、免疫透過電子顕微鏡学的研究 に最適 である。HPF・ULTLVSEM法 では、細胞の鋭利な割断面 を露出させることによ り、短時間で細胞の走査電子顕微鏡像を得 る ことを可能 とした。その結果、分裂酵母 の細胞質分裂の際の、...