... did classical reagents such as ninhydrin or DFO. Another potential advantage of genipin is that it is totally harmless and an environmentally friendly reagent. 06 02 2005 13 06 2005 14 09 2005 forensic science fingerprint reagent genipin amino acid reagent ninhydrin DFO...

... criminalistics, Chapter X (Questioned Documents) , Berlin : Springer-Verlag 1981 . forensic science latent fingerprints counterfeited banknotes ninhydrin DFO amino acid reagents cyanoacrylate fuming paper chemistry surface energy 21 12 2003 17 04 2004 01 09 2004...

... with ninhydrin or with indanedione can be significantly affected by previous humidification of the paper. 12 01 2003 06 01 2003 01 05 2003 forensic science latent fingerprints ESDA humidity ninhydrin DFO 1 2-indanedione paper questioned documents References Foster   DJ...

...L Schwarz, Dr.Phil.Nat.; I Frerichs, C.T.A. This work presents the first known experiments of ninhydrin sublimation in vacuum to detect latent fingerprints on thermal paper. In this method, latent fingerprints become visible in rich detail without the background black staining known from...

... by ninhydrin. No new prints could be observed when ninhydrin was applied after indanedione. On a large number of actual exhibits (used checks) indanedione developed 46% more identifiable prints than the sequence DFO-ninhydrin. A standard procedure for fingerprint development by indanedione is proposed. Best...

...C Roux, Ph.D.; N Jones, B.App.Sc. (Hons); C Lennard, Ph.D.; M Stoilovic, M.Sc. The ability of 1,2-indanedione and 5,6-dimethoxy-1,2-indanedione to detect latent prints on porous surfaces, as compared to DFO and ninhydrin, has been evaluated. Comparisons of prints developed under various conditions...

...R Elber, Ph.D.; A Frank, Ph.D.; J Almog, Ph.D. The design of chemical compounds for development of latent fingerprints is explored computationally. Our main findings are: (a) We show why past attempts to improve the widely used ninhydrin gave relatively small improvements (referring to color only...

...J Almog, Ph.D.; VG Sears, B.Sc.; E Springer, M.Sc.; DF Hewlett, Ph.D.; S Walker, B.Sc.; S Wiesner, B.Sc.; R Lidor, Ph.D.; E Bahar, Ph.D. Benzo[f]ninhydrin was compared to ninhydrin for fingerprint development on paper. Overall, the performance of ninhydrin on exhibits was slightly better than...

... Black, Crowle's Double Stain, 1,8-diazafluoren-9-one (DFO), Hungarian Red, leucomalachite green, luminol and ninhydrin were tested on linoleum, glass, metal, wood (pine, painted white), clothing (85% polyester/15% cotton, 65% polyester/35% cotton, and blue denim) and paper (Scott® 2-ply and Xerox-grade...

... with untreated samples. References Oden   S , von Hofsten   B . Detection of fingerprints by the ninhydrin reaction . Nature 1954 ; 173 : 449 - 50 . Burt   J A , Menzel   E R . Laser detection of latent fingerprints: Difficult surfaces . J Forensic Sci 1985 ; 13 ( 3 ): 364 - 70...

...DF Hewlett, Ph.D.; PGR Winfield; AA Clifford, D.Sc. Ninhydrin is a widely used reagent for the development of latent fingerprints on porous surfaces. For the past 20 years 1,1,2-trichlorotrifluoroethane (CFC113) has been used as the solvent of choice in the UK for ninhydrin because of its non...

...PJ Davies, B.Sc.; HJ Kobus, Ph.D.; MR Taylor, Ph.D.; KP Wainwright, Ph.D. The complexation reactions involving Ruhemann's purple (RP) and either zinc(II) or cadmium(II), which are made use of in the enhancement of latent fingerprints that have undergone preliminary development with ninhydrin, have...

... detection on porous surfaces, such as paper, where the procedure is similar to the by now routine ninhydrin/zinc chloride treatment, except that the nitrate or acetate are used in many instances, instead of the chloride, in the rare earth case, depending on paper type. 30 04 1992 24 09 1992 16...

... to the naked eye. The procedure used in this case report, combines the use of cyanoacrylate vapor, commonly called “super glue fuming,” and the ninhydrin process in conjunction to develop fragile ridge structure into discernable ridges that are easily seen and photographed for the purpose of making...

...J Almog, Ph.D.; A Hirshfeld, Ph.D.; A Frank, Ph.D.; H Grant, B.Sc.; Z Harel, Ph.D.; Y Ittah, Ph.D. Ninhydrin derivatives bearing sulfur-containing groups at position 5 exhibit excellent properties as fluorogenic fingerprint reagents on paper. Their sensitivity markedly exceeds that of ninhydrin...

...ER Menzel, Ph.D.; RA Bartsch, Ph.D.; JL Hallman, B.S. Ruhemann's Purple (RP), the reaction product of ninhydrin with amino acids, forms coordination compounds with many metals. However, only a few of them fluoresce. A model for the structural and photophysical features that underlie the formation...

...ER Menzel, Ph.D.; KE Mitchell, M.S. The reaction product of ninhydrin with amino acids reacts further with europium chloride hexahydrate (EuCl 3 · 6H 2 O) to form an organo-rare earth complex which exhibits Eu 3+ luminescence at 615 nm with a lifetime of 0.4 ms. This emission is sensitized...

...S-G Cheng, LL.M. Ninhydrin/zinc chloride, which has been proven to be unsuitable for the neodymium: yttrium aluminum garnet (Nd: YAG) laser development of latent fingerprints, is demonstrated here because of its pronounced improvement in weak bloody fingerprint detection. TECHNICAL NOTE Sheaw-Guey...

...CJ Lennard, B.Sc.; PA Margot, Ph.D.; M Sterns, Ph.D.; RN Warrener, Ph.D. Ruhemann's purple (RP), formed in the ninhydrin development of latent fingerprints, readily coordinates to a number of metal cations. The luminescent behavior of the Group IIb complexes has been used in the enhancement...

...JP Nielson, C.L.P.E. A method is described that quantitatively evaluates development conditions and reactivity of amino acid visualization reagents. Ninhydrin was the primary reagent used in this study. The method consists of spotting a serial dilution of amino acids in a numbered grid on paper...