phenyl mercury
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2021 ◽  
Vol 2063 (1) ◽  
pp. 012003
Author(s):  
Ali Z Al-Rubaie ◽  
Shaker A S Al-Jadaan ◽  
Anwar T Abd Al-Wahed ◽  
Ibraheem A Raadah

Abstract Ten chalcogen and mercury bearing compounds based on 4-aminobenzoic acid (i.e., (2-amino-5-(ethoxycarbonyl)phenyl)mercury(II) chloride (1), (2-amino-5-(ethoxycarbonyl)phenyl) phenyl selenide (2), (2-amino-5-(ethoxycarbonyl)phenyl) phenyl telluride (3), (4-carboxyphenyl)mercury(II) chloride (4), 4-selenocyanatobenzoic acid (5), 4-tellurocyanatobenzoic acid (6), bis(4-carboxyphenyl) diselenide (7) bis(4-carboxyphenyl) ditelluride (8), bis(4-carboxyphenyl) selenide (9) bis(4-carboxyphenyl) telluride (10) were prepared and characterized by various spectroscopic techniques. All compounds were screened for antibacterial activity against Gram-positive bacterial strains of Staphylococcus aureus and the Gram-negative bacteria Escherichia coli by using the disk diffusion technique. The antibacterial activity of these compounds was dependent on the molecular structure of the compounds, and the bacterial strain under consideration.


2018 ◽  
Vol 2018 (36) ◽  
pp. 4093-4105 ◽  
Author(s):  
Shikha Das ◽  
Sagar Sharma ◽  
Harkesh B. Singh ◽  
Ray J. Butcher
Keyword(s):  

2014 ◽  
Vol 2 (3) ◽  
Author(s):  
Glenaldy Rondonuwu ◽  
Billy J. Kepel ◽  
Widhi Bodhi

Abstract: Mercury as one of the dangerous contaminants, are neurotoxins and enter into aquatic ecosystems through atmospheric deposition or derived from industrial waste externalization. Methods: This research using descriptive and exploratory method. After getting the sample (feces, urine, tartar), the study followed by laboratory tests. Result: It was found that bacterias resistant to HgCl2: streptococcus sp, E. coli, and clostridium sp, while the bacterias that resistant to phenyl mercury: bacillus sp and sp aeroccus. Keywords: Bacteria Resistance, HgCl2, Phenyl Mercury, Feces, Urine, Tartar, Coastal Marine. Abstrak: Merkuri sebagai salah satu zat pencemar yang berbahaya, bersifat neurotoksin dan masuk ke dalam ekosistem akuatik melalui deposisi atmosferik, maupun berasal dari eksternalisasi limbah industry. Metode: Penelitian ini bersifat deskriptif dan bersifat eksploratif. Kemudian setelah mendapatkan sampel (feses, urin, karang gigi), penelitian dilanjutkan dengan pemeriksaan lab. Hasil: Didapatkan bakteri yang resisten terhadap HgCl2 : streptococcus sp, E.Coli, dan clostridium sp. Sedangkan bakteri yang resisten terhadap fenil merkuri: bacillus sp dan aeroccus sp. Kata kunci: Bakteri Resistensi, HgCL2, Fenil Merkuri, Feses, Urin, Karang Gigi, Daerah Pesisir Pantai.


2014 ◽  
Vol 2 (2) ◽  
Author(s):  
Devianitta Sarapi ◽  
Fatimawali . ◽  
Fona Budiarso

Abstract: Mercury is a metal that is very harmful for health human and the environment if not properly mercury polluted sea water can be exposed to humans especially those living in coastal areas with high consumption of marine products. Mercury pollution in the ocean triggered a mercury-resistant bacteria therefore researchers are interested in finding out if the bacteria are resistant to mercury in urine, feces, and tartar. Research design is fashion descriptive explorative. Samples taken in this study is urine, feces, and tartar on individuals who have settled more than 30 years in the rural coastal districts Pulisan, Likupang eastern district north Minahasa regency then tested in morphology, physiology and biochemistry at the FMIPA Sam Ratulangi University Sam Ratulangi biotechnology lab. Result of the study showed the presence of mercury-resistant bacteria in samples taken were found proved by mercury resistant bacteria 4 of 6 isolates that survive up to 40 ppm and 20 ppm in HgCl2 on Phenyl mercury is Bacillus sp, E.coli, Streptococcus sp, and Staphylococcus sp. Keywords: Mercury, mercury resistant bacteria.     Abstrak: Merkuri merupakan logam yang sangat berbahaya bagi kesehatan manusia dan lingkungan, jika tidak diolah dengan baik. Merkuri tercemar pada air laut dapat terpapar pada manusia terlebih yang tinggal didaerah pesisir pantai dengan konsumsi hasil laut yang tinggi. Adanya pencemaran merkuri di laut memicu munculnya bakteri yang resisten terhadap merkuri. Oleh karena itu peneliti tertarik untuk mengetahui adakah bakteri yang resisten terhadap merkuri dalam urine, feses, dan karang gigi. Desain penelitian adalah metode deskriptif eksploratif. Sampel yang diambil dalam penelitian ini adalah urine, feses, dan karang gigi pada individu yang telah menetap lebih dari 30 tahun di daerah pesisir pantai Desa Pulisan Kecamatan Likupang Timur Kabupaten Minahasa Utara. Kemudian diuji secara morfologi, fisiologi, dan biokimia dilaboratorium bioteknologi FMIPA Universitas Sam Ratulangi. Hasil penelitian menunjukan adanya bakteri resisten merkuri pada sampel yang diambil. Terbukti dengan ditemukan 4 bakteri resisten merkuri dari 6 isolat yang bertahan sampai 40 ppm pada HgCl2 dan 20 ppm pada Fenil merkuri, yaitu: Bacillus sp, E.coli, Streptococcus sp, dan Staphylococcus sp. Kata Kunci: Merkuri, bakteri resisten merkuri.


2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Maichel Yorgen

Abstract: Mercury is one of kinds of hazardous metals which is highly found in nature and spread in rocklike, ore, soil, water, and air as the inorganic and organic compounds. The metal of mercury is dangerous to human’s life because it can cause the substantially clinical manifestations started from being poisoned, nerve palsy and even cause death. One of attempts to mercury detoxification can be done by using mercury-resistant microorganism such as mercury-resistant bacteria. That would happen if the mercury spread inside the human’s body with small value in a very chronic time can make the bacteria inside the human’s body to be able to adapt even able to reduce mercury so that it becomes harmless. The research aims to identify the kind of bacteria that resists to mercury, in this case, to the kind of mercury HgCl2 and Phenyl Mercury found on tartar, urine, and feses upon the individual in Pakadoodan Village of Bitung City by using the way to check the value of bacteria resistance to mercury, afterwards the Physiology test, Biochemical, and Morphology is done to identify the kind of that bacteria. From the research result done there are 4 genus of bacteria which was successfully identified, those are, Streptococcus sp, E.Coli, Bacillus sp, and Staphylococcus sp. By the classification HgCl2 is the bacteria with the genus of     Bacillus sp which is found in urine, feses and tartar, and Staphylococcus sp which is found also in urine with the resistance level of 40 ppm each and phenyl mercury is the bacteria with the genus of Streptococcus sp, which is found in tartar and E.Coli which is found in feses and urine with the resistance level 20 ppm each. Keywords: mercury, bacteria, mercury-resistant bacteria Abstrak: Merkuri adalah salah satu jenis logam berbahaya yang banyak ditemukan di alam dan tersebar dalam batu - batuan, biji tambang, tanah, air dan udara sebagai senyawa anorganik dan organik. Logam merkuri sangat berbahaya terhadap kehidupan manusia karena dapat memberikan manifestasi klinik yang cukup bermakna mulai dari keracunan, kelumpuhan saraf bahkan dapat meneyebabkan kematian. Salah satu usaha untuk detoksifikasi merkuri dapat dilakukan dengan menggunakan mikroorganisme resisten merkuri seperti bakteri resisten merkuri. Hal itu dapat terjadi jika merkuri yang terpapar dalam tubuh manusia dengan kadar yang kecil dalam waktu yang sangat kronis dapat membuat bakteri dalam tubuh manusia tersebut dapat beradaptasi bahkan dapat mampu meruduksi merkuri tersebut sehingga menjadi tidak berbahaya. Penelitian ini bertujuan untuk mengidentifikasi jenis bakteri yang resisten terhadap merkuri dalam hal ini terhadap jenis merkuri HgCl2 dan fenil merkuri yang terdapat pada karang gigi, urin dan feses pada individu kelurahan Pakadoodan Kota Bitung dengan cara memeriksa kadar resisten bakteri tersebut terhadap merkuri, setelah itu dilakukan uji fisiologi, uji biokimia dan uji morfolgi untuk mengidentifikasi jenis bakteri tersebut.  Dari hasil penelitian yang dilakukan terdapat 4 genus bakteri yang berhasil diidentifikasi yaitu Streptococcus sp, E.coli, Bacillus sp, dan Staphylococcus sp. Dengan klasifikasi HgCl2 adalah bakteri dengan genus Bacillus sp yang terdapat pada urin, feses dan karang gigi, dan Staphylococcus sp yang terdapat juga pada urin dengan tingkat resistensi masing-masing 40 ppm dan fenil merkuri adalah bakteri dengan genus Streptococcus sp, yang terdapat pada karang gigi dan E.coli yang terdapat pada feses dan urin dengan tingkat resistensi masing-masing 20 ppm. Kata kunci: merkuri, bakteri, bakteri resisten merkuri


2014 ◽  
Vol 67 (12) ◽  
pp. 1860 ◽  
Author(s):  
Glen B. Deacon ◽  
Craig M. Forsyth ◽  
Dominique Freckmann ◽  
Peter C. Junk ◽  
Kristina Konstas ◽  
...  

The structures of three adventitiously obtained peroxolanthanoid complexes have been determined, namely, [Yb2(Cp)4(μ-O)2/3(μ-O2)1/3(thf)2] (1) (Cp = cyclopentadienyl; thf = tetrahydrofuran), which has disorder between the bridging oxide and peroxide, [Nd2(o-PhPhForm)4(thf)4(μ-O2)] (2) (o-PhPhForm = N,N′-bis(2-phenylphenyl)formamidinate), and [Eu4(FForm)6(μ-OH)2(μ3-O2)2(μ-diglyme)2]·2diglyme (3) (FForm = N,N′-bis(2-fluorophenyl)formamidinate, diglyme = bis(2-methoxyethyl) ether). In the first two complexes, the peroxide bridges side-on between metals, whereas in the last complex, each peroxide bridges three metals through both oxygen atoms. The first complex was a single crystal amongst a bulk sample of [Yb(Cp)2(pzPh)(thf)] (pzPh = 2-(1′-pyrazolyl)phenyl), prepared by oxidation of dicyclopentadienylytterbium(ii) by bis(2-(1′-pyrazolyl)phenyl)mercury, the structure of which was also determined and showed distorted square planar stereochemistry for mercury.


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