ZIB

1

Electronic Resource

Focused ion beam lithography and its application to submicron devices

Morimoto, H. ; Sasaki, Y. ; Saitoh, K. ; [et al.]

Amsterdam : Elsevier

Microelectronic Engineering 4 (1986), S. 163-179

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ISSN: 0167-9317

Keywords: Focused ion beam ; lithography ; resist ; semiconductor devices ; sputtering

Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Topics: Electrical Engineering, Measurement and Control Technology

Type of Medium: Electronic Resource

URL: http://linkinghub.elsevier.com/retrieve/pii/0167-9317(86)90009-2

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2

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Technologies for electron beam direct writing

Kato, T. ; Watakabe, Y. ; Saitoh, K. ; [et al.]

Amsterdam : Elsevier

Microelectronic Engineering 1 (1983), S. 69-90

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ISSN: 0167-9317

Keywords: CAD-EBES network ; EB direct writing ; EB technology

Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002

Topics: Electrical Engineering, Measurement and Control Technology

Type of Medium: Electronic Resource

URL: http://linkinghub.elsevier.com/retrieve/pii/0167-9317(83)90013-8

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3

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Fluorescence replication banding of frog chromosomes (1997)

Miura, I. ; Ohtani, H. ; Nakamura, M. ; [et al.]

Springer

Cellular and molecular life sciences 53 (1997), S. 73-77

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ISSN: 1420-9071

Keywords: Key words. Late replication banding; DAPI; actinomycin D; frogs.

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Medicine

Notes: Abstract. To identify individual chromosomes of a frog karyotype by their fluorescence banding patterns, chromosomes were stained with actinomycin D and 4,6-diamidino-2-phenylindole (DAPI) after incorporation of BrdU during the late S-phase. The chromosomes of three Rana species which were selected for this study (R. ridibunda, R. lessonae and R. japonica) showed well-defined late replication bands. The fluorescence patterns obtained were the reverse of those produced by a 4Na-EDTA Giemsa-staining technique. Fluorescence patterns of the two water frog species (R. ridibunda and R. lessonae) were similar to each other, except for the different fluorescence of the centromeric heterochromatin, which gave extremely bright signals in R. ridibunda but no signal in R. lessonae. Experiments also showed differences between the fluorescence patterns of R. lessonae chromosome 13 in the Italian and Luxembourgian populations. These results sho w that the fluorescence replication banding using actinomycin D and DAPI is very effective in identifying individual frog chromosomes and detecting their structural changes.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/PL00000582

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4

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Reversed-phase high-performance thin-layer chromatography of hematoporphyrin and its nickel, copper and zinc complexes (1986)

Suzuki, N. ; Saitoh, K. ; Sugiyama, Y.

Springer

Chromatographia 21 (1986), S. 509-512

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ISSN: 1612-1112

Keywords: Thin-layer chromatography ; Porphyrin ; Metalloporphyrins ; Hematoporphyrin IX

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Summary The thin-layer chromatographic mobility of hematoporphyrin IX (Hp) and its metal complexes on octyl (C8)- or octadecyl (C18)-bonded silica gel plate is described. The mobility order for those compounds is regular on both kinds of plate with various compositions of methanol-phosphate buffer mixtures as the developing solvents; thus, Cu-complex 〈 Ni-complex 〈 Hp (free acid) 〈 Zn-complex. The combination of a C18-plate with an 85∶15 (vol/vol) mixture of methanol and phosphate buffer (pH 3) is recommended for the successful separation of these four compounds.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02310537

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5

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High-performance liquid chromatographic separation of hematoporphyrin and its nickel, copper and zinc complexes on octadecyl-bonded stationary phase (1986)

Suzuki, N. ; Saitoh, K. ; Sugiyama, Y.

Springer

Chromatographia 22 (1986), S. 132-134

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ISSN: 1612-1112

Keywords: Column liquid chromatography ; Porphyrin ; Metalloporphyrin ; Hematoporphyrin IX

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Summary The feasibility of reversed-phase high-performance liquid chromatography for the separation of metal complexes of hematoporphyrin IX (Hp) is described. The retention order, Zn-complex〈Hp (free acid)〈 Ni-complex〈Cu-complex, is regular on an octadecylbonded stationary phase with different compositions of an aqueous methanol mobile phase. These four compounds can be successfully separated within about 8 min on a LiChrosorb RP-18 column (250×4-mm i.d.) with a 85:15 (vol/vol) mixture of methanol and phosphate buffer (pH 3) at a flow rate of 1 ml/min.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02257313

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6

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High-performance thin-layer chromatography of metal complexes ofmeso-tetrakis(p-tolyl)porphyrin on cellulose and silica gel (1984)

Kobayashi, M. ; Saitoh, K. ; Suzuki, N.

Springer

Chromatographia 18 (1984), S. 441-444

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ISSN: 1612-1112

Keywords: High-performance TLC ; metal complexes ; Tetrakis(4-methylphenyl)porphyrin

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Summary The migration behavior of metal complexes ofmeso-tetrakis(p-tolyl)porphyrin (TTP) are studied in HPTLC systems with cellulose and silica gel thin-layers and various organic solvents of relatively low polarity. The mobility of the metal complex tends to increase in the following orders of its central-metal elements: on cellulose, Mg(II)〈Zn(II)〈V(IV)〈(H)〈Pd(II)〈 Ni(II)≈Cu(II); on silica gel, Mg(II)〈V(IV)〈Zn(II)= (H)〈Ni(II)≈Pd(II)⩽Cu(II). Recommendable phase system for the separation of metal-TTP complexes is a combination of silica gel thin-layer with a carbon disulfide-m-xylene mixture though the complexes of Ni, Cu and Pd are not completely resolved.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02262974

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7

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Isolation of the mixed ligand complex of beryllium(II) with acetylacetone and thenoyltrifluoroacetone by gel permeation chromatography (1981)

Noda, H. ; Saitoh, K. ; Suzuki, N.

Springer

Chromatographia 14 (1981), S. 189-191

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ISSN: 1612-1112

Keywords: Gel-permeation chromatography ; Beryllium complexes

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Summary The mixed ligand, metal complex (acetylacetonato) (thenoryltrifluoroacetonato) beryllium(II) has been isolated from a reaction mixture of bis(acetylacetonato) beryllium(II) and bis(thenoyltrifluoroacetonato)beryllium(II) in ethyl acetate by gel permeation chromatography using Shodex 801 gel column and ethyl acetate as the solvent.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02260150

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8

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Reversed-phase, high-performance, thin-layer chromatography of metal tetrakis (p-tolyl) porphine complexes on octadecylbonded stationary phase (1985)

Kobayashi, M. ; Saitoh, K. ; Suzuki, N.

Springer

Chromatographia 20 (1985), S. 49-52

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ISSN: 1612-1112

Keywords: High-performance TLC ; Metal complexes ; Tetrakis (4-methylphenyl) porphine

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Summary The metal complexes ofmeso-tetrakis (p-tolyl) porphine (TTP) are chromatographed on octadecyl-bonded silica gel thin-layer with various organic solvents of relatively high polarity used as the eluent. The mobility of the metal-TTP complex depends on its centralmetal, increasing in the order of Cu(II)〈Pd(II)≈NI(II)〈TTP free acid〈V(IV) as vanadyl〈Zn(II)〈Mg(II), although some irregularities are found with the different developing solvents used. The concept of Hildebrand's solubility parameter is applied to the discussion of the mobility of each compound, on the solvents used as the developer. Successful separation of the TTP compounds is performed by using a mixture of acetone and acetonitrile as the developer, although the Ni- and Pd-complexes are not completely resolved.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02260487

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