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https://www.readbyqxmd.com/read/28635152/a-novel-dna-structure-containing-agi-mediated-g-g-and-c-c-base-pairs
#1
Hehua Liu, Fusheng Shen, Phensinee Haruehanroengra, Qingqing Yao, Yunshan Cheng, Yiqing Chen, Chun Yang, Jing Zhang, Baixing Wu, Qiang Luo, Ruixue Cui, Jixi Li, Jinbiao Ma, Jia Sheng, Jianhua Gan
Metallo-base pairs have been extensively utilized in many research fields, including genetic code extension, novel therapeutics development, and various nanodevice designs. Compared to other cations, AgI is more flexible in pairing with natural base pairs. Herein, we present a DNA structure containing two C-AgI-C pairs and one first time reported G-AgI-G pair in a short 8mer DNA strand. This structure not only discloses the detailed insights into these AgI-base pairing patterns in DNA, but also represents the first nonhelical DNA structure driven by the heavy metal ions, further contributing to the structural diversity of DNA...
June 20, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28634799/assessment-of-heat-inactivated-marine-aspergillus-flavus-as-a-novel-biosorbent-for-removal-of-cd-ii-hg-ii-and-pb-ii-from-water
#2
Mohamed E Mahmoud, Gehan M El Zokm, Aida E M Farag, Mohamed S Abdelwahab
A novel marine fungus was isolated and classified as Aspergillus flavus strain EGY11. The heat-inactivated form of isolated Aspergillus flavus was investigated and evaluated as a new eco-friendly and highly efficient biosorbent for removal of toxic heavy metals such as Cd(II), Hg(II), and Pb(II) from aqueous solutions. The SEM morphological studies of biosorbent-loaded metal ions confirmed their direct binding on the surface of heat-inactivated Aspergillus flavus. The metal biosorption capacity values were determined and optimized by the batch technique in the presence of various experimental controlling factors such as pH, contact time, biosorbent dosage, initial metal ion concentration, and coexisting species...
June 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28633083/adsorption-of-cu-ii-pb-ii-and-cr-vi-from-aqueous-solutions-using-black-wattle-tannin-immobilized-nanocellulose
#3
Qinghua Xu, Yulu Wang, Liqiang Jin, Yu Wang, Menghua Qin
A novel nanocomposite based on black wattle (BW) tannin and nanocellulose was prepared and applied in heavy metal ions adsorptive removal from aqueous solutions. Firstly, nanocrystalline cellulose was oxidized by sodium periodate to get dialdehyde nanocellulose (DANC). BW tannin was then covalently immobilized onto DANC, which was used as both the matrix and crosslinker, to obtain tannin-nanocellulose (TNCC) composite. The resulting nanocomposite was characterized using FTIR, AFM, and TG. The successful immobilization was confirmed by the chromogenic reaction between FeCl3 and TNCC and FT-IR analysis...
June 17, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28631419/the-cpxr-cpxa-system-contributes-to-salmonella-gold-resistance-by-controlling-the-gols-dependent-gesabc-transcription
#4
Sebastián Cerminati, Germán F Giri, Julián I Mendoza, Fernando C Soncini, Susana K Checa
Several regulatory systems contribute to bacterial resistance to heavy metals controlling the expression of factors required to eliminate the intoxicant and/or to repair the damage caused by it. In Salmonella, the response to Au ions is mediated by the specific metalloregulator GolS that, among other genes, controls the expression of the RND-efflux pump GesABC. In this work, we demonstrate that CpxR/CpxA, a main cell-envelope stress-responding system, promotes gesABC transcription in the presence of Au ions at neutral pH...
June 19, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28630970/heavy-ligand-atom-induced-large-magnetic-anisotropy-in-mn-ii-complexes
#5
Sabyasachi Roy Chowdhury, Sabyashachi Mishra
In the search for single molecule magnets, metal ions are considered pivotal towards achieving large magnetic anisotropy barriers. In this context, the influence of ligands with heavy elements, showing large spin-orbit coupling, on magnetic anisotropy barriers was investigated using a series of Mn(ii)-based complexes, in which the metal ion did not have any orbital contribution. The mixing of metal and ligand orbitals was achieved by explicitly correlating the metal and ligand valence electrons with CASSCF calculations...
June 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28627273/nanoparticle-interactions-with-co-existing-contaminants-joint-toxicity-bioaccumulation-and-risk
#6
Rui Deng, Daohui Lin, Lizhong Zhu, Sanghamitra Majumdar, Jason C White, Jorge L Gardea-Torresdey, Baoshan Xing
With their growing production and application, engineered nanoparticles (NPs) are increasingly discharged into the environment. The released NPs can potentially interact with pre-existing contaminants, leading to biological effects (bioaccumulation and/or toxicity) that are poorly understood. Most studies on NPs focus on single analyte exposure; the existing literature on joint toxicity of NPs and co-existing contaminants is rather limited but beginning to develop rapidly. This is the first review paper evaluating the current state of knowledge regarding the joint effects of NPs and co-contaminants...
June 19, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28625960/production-of-an-antibiotic-enterocin-from-a-marine-actinobacteria-strain-h1003-by-metal-stress-technique-with-enhanced-enrichment-using-response-surface-methodology
#7
Syed Shamsul Hassan, Sayed Asmat Ali Shah, Chengqian Pan, Leilei Fu, Xun Cao, Yutong Shi, Xiaodan Wu, Kuiwu Wang, Bin Wu
Elicitation by chemical means including heavy metals is one of a new technique for drug discoveries. In this research, the effect of heavy metals on marine actinobacteria Streptomyces sp. H-1003 for the production of enterocin, with a strong broad spectrum activity, along optimized fermented medium was firstly investigated. The optimum metal stress conditions consisted of culturing marine actinobacteria strain H-1003 with addition of cobalt ions at 2mM in optimized Gause's medium having starch at 20mg/L for 10 days at 180 revolution/min...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28624244/evolutionary-engineering-of-salt-resistant-chlamydomonas-sp-strains-reveals-salinity-stress-activated-starch-to-lipid-biosynthesis-switching
#8
Yuichi Kato, Shih-Hsin Ho, Christopher J Vavricka, Jo-Shu Chang, Tomohisa Hasunuma, Akihiko Kondo
The aim of this study was to improve biomass production of the green microalga Chlamydomonas sp. JSC4 under high salinity conditions. For this purpose, heavy ion beam-coupled mutagenesis and evolutionary engineering were performed using JSC4 as the parent strain. After long-term and continuous cultivation with high salinity, salt-resistant strains that grow well even in the presence of 7% sea salt were successfully obtained. Transcriptional analysis revealed inactivation of starch-to-lipid biosynthesis switching, which resulted in delayed starch degradation and decreased lipid content in the salt-resistant strains...
June 9, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28623746/electrokinetic-enhanced-ryegrass-cultures-in-soils-polluted-with-organic-and-inorganic-compounds
#9
Gustavo Acosta-Santoyo, Claudio Cameselle, Erika Bustos
The effect of electric fields on seed germination and development of ryegrass (Lolium perenne L.) was studied in clean and contaminated soil with heavy metals and/or PAHs. The application of 0.2 DCV/cm in clean soil near ryegrass seeds enhanced the germination by 75%. The presence of contaminants in soil hindered the germination and growing of ryegrass. However, the application of DC electric field favored the germination and growing of plants compensating the negative effects of the contaminants. The electrode material in anodes has a decisive influence in the germination and growing of ryegrass...
June 14, 2017: Environmental Research
https://www.readbyqxmd.com/read/28623688/exposure-to-sublethal-concentrations-of-co3o4-and-mn2o3-nanoparticles-induced-elevated-metal-body-burden-in-daphnia-magna
#10
Margit Heinlaan, Marge Muna, Katre Juganson, Olena Oriekhova, Serge Stoll, Anne Kahru, Vera I Slaveykova
Despite the significant progress made in ecotoxicological research on nanoparticles (NPs), there is still very limited information available regarding the biological effects of certain types of NPs such as Co3O4 and Mn2O3. Only a couple of studies provide data on their impact on aquatic organisms whereas, alarmingly, these NPs have been proposed to have high toxicity potential. In addition, more data are needed to determine whether the adverse effects the metal NPs induce on aquatic organisms are rather due to their chemical or particulate nature...
June 6, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28621989/azimuthally-differential-pion-femtoscopy-in-pb-pb-collisions-at-sqrt-s_-nn-2-76%C3%A2-%C3%A2-tev
#11
D Adamová, M M Aggarwal, G Aglieri Rinella, M Agnello, N Agrawal, Z Ahammed, S Ahmad, S U Ahn, S Aiola, A Akindinov, S N Alam, D S D Albuquerque, D Aleksandrov, B Alessandro, D Alexandre, R Alfaro Molina, A Alici, A Alkin, J Alme, T Alt, S Altinpinar, I Altsybeev, C Alves Garcia Prado, M An, C Andrei, H A Andrews, A Andronic, V Anguelov, C Anson, T Antičić, F Antinori, P Antonioli, R Anwar, L Aphecetche, H Appelshäuser, S Arcelli, R Arnaldi, O W Arnold, I C Arsene, M Arslandok, B Audurier, A Augustinus, R Averbeck, M D Azmi, A Badalà, Y W Baek, S Bagnasco, R Bailhache, R Bala, A Baldisseri, M Ball, R C Baral, A M Barbano, R Barbera, F Barile, L Barioglio, G G Barnaföldi, L S Barnby, V Barret, P Bartalini, K Barth, J Bartke, E Bartsch, M Basile, N Bastid, S Basu, B Bathen, G Batigne, A Batista Camejo, B Batyunya, P C Batzing, I G Bearden, H Beck, C Bedda, N K Behera, I Belikov, F Bellini, H Bello Martinez, R Bellwied, L G E Beltran, V Belyaev, G Bencedi, S Beole, A Bercuci, Y Berdnikov, D Berenyi, R A Bertens, D Berzano, L Betev, A Bhasin, I R Bhat, A K Bhati, B Bhattacharjee, J Bhom, L Bianchi, N Bianchi, C Bianchin, J Bielčík, J Bielčíková, A Bilandzic, G Biro, R Biswas, S Biswas, J T Blair, D Blau, C Blume, G Boca, F Bock, A Bogdanov, L Boldizsár, M Bombara, G Bonomi, M Bonora, J Book, H Borel, A Borissov, M Borri, E Botta, C Bourjau, P Braun-Munzinger, M Bregant, T A Broker, T A Browning, M Broz, E J Brucken, E Bruna, G E Bruno, D Budnikov, H Buesching, S Bufalino, P Buhler, S A I Buitron, P Buncic, O Busch, Z Buthelezi, J B Butt, J T Buxton, J Cabala, D Caffarri, H Caines, A Caliva, E Calvo Villar, P Camerini, A A Capon, F Carena, W Carena, F Carnesecchi, J Castillo Castellanos, A J Castro, E A R Casula, C Ceballos Sanchez, P Cerello, B Chang, S Chapeland, M Chartier, J L Charvet, S Chattopadhyay, S Chattopadhyay, A Chauvin, M Cherney, C Cheshkov, B Cheynis, V Chibante Barroso, D D Chinellato, S Cho, P Chochula, K Choi, M Chojnacki, S Choudhury, P Christakoglou, C H Christensen, P Christiansen, T Chujo, S U Chung, C Cicalo, L Cifarelli, F Cindolo, J Cleymans, F Colamaria, D Colella, A Collu, M Colocci, G Conesa Balbastre, Z Conesa Del Valle, M E Connors, J G Contreras, T M Cormier, Y Corrales Morales, I Cortés Maldonado, P Cortese, M R Cosentino, F Costa, S Costanza, J Crkovská, P Crochet, E Cuautle, L Cunqueiro, T Dahms, A Dainese, M C Danisch, A Danu, D Das, I Das, S Das, A Dash, S Dash, S De, A De Caro, G de Cataldo, C de Conti, J de Cuveland, A De Falco, D De Gruttola, N De Marco, S De Pasquale, R D De Souza, H F Degenhardt, A Deisting, A Deloff, C Deplano, P Dhankher, D Di Bari, A Di Mauro, P Di Nezza, B Di Ruzza, M A Diaz Corchero, T Dietel, P Dillenseger, R Divià, Ø Djuvsland, A Dobrin, D Domenicis Gimenez, B Dönigus, O Dordic, T Drozhzhova, A K Dubey, A Dubla, L Ducroux, A K Duggal, P Dupieux, R J Ehlers, D Elia, E Endress, H Engel, E Epple, B Erazmus, F Erhardt, B Espagnon, S Esumi, G Eulisse, J Eum, D Evans, S Evdokimov, L Fabbietti, D Fabris, J Faivre, A Fantoni, M Fasel, L Feldkamp, A Feliciello, G Feofilov, J Ferencei, A Fernández Téllez, E G Ferreiro, A Ferretti, A Festanti, V J G Feuillard, J Figiel, M A S Figueredo, S Filchagin, D Finogeev, F M Fionda, E M Fiore, M Floris, S Foertsch, P Foka, S Fokin, E Fragiacomo, A Francescon, A Francisco, U Frankenfeld, G G Fronze, U Fuchs, C Furget, A Furs, M Fusco Girard, J J Gaardhøje, M Gagliardi, A M Gago, K Gajdosova, M Gallio, C D Galvan, D R Gangadharan, P Ganoti, C Gao, C Garabatos, E Garcia-Solis, K Garg, P Garg, C Gargiulo, P Gasik, E F Gauger, M B Gay Ducati, M Germain, P Ghosh, S K Ghosh, P Gianotti, P Giubellino, P Giubilato, E Gladysz-Dziadus, P Glässel, D M Goméz Coral, A Gomez Ramirez, A S Gonzalez, V Gonzalez, P González-Zamora, S Gorbunov, L Görlich, S Gotovac, V Grabski, L K Graczykowski, K L Graham, J L Gramling, L Greiner, A Grelli, C Grigoras, V Grigoriev, A Grigoryan, S Grigoryan, N Grion, J M Gronefeld, F Grosa, J F Grosse-Oetringhaus, R Grosso, L Gruber, F R Grull, F Guber, R Guernane, B Guerzoni, K Gulbrandsen, T Gunji, A Gupta, R Gupta, I B Guzman, R Haake, C Hadjidakis, H Hamagaki, G Hamar, J C Hamon, J W Harris, A Harton, D Hatzifotiadou, S Hayashi, S T Heckel, E Hellbär, H Helstrup, A Herghelegiu, G Herrera Corral, F Herrmann, B A Hess, K F Hetland, H Hillemanns, B Hippolyte, J Hladky, D Horak, R Hosokawa, P Hristov, C Hughes, T J Humanic, N Hussain, T Hussain, D Hutter, D S Hwang, R Ilkaev, M Inaba, M Ippolitov, M Irfan, V Isakov, M S Islam, M Ivanov, V Ivanov, V Izucheev, B Jacak, N Jacazio, P M Jacobs, M B Jadhav, S Jadlovska, J Jadlovsky, C Jahnke, M J Jakubowska, M A Janik, P H S Y Jayarathna, C Jena, S Jena, M Jercic, R T Jimenez Bustamante, P G Jones, A Jusko, P Kalinak, A Kalweit, J H Kang, V Kaplin, S Kar, A Karasu Uysal, O Karavichev, T Karavicheva, L Karayan, E Karpechev, U Kebschull, R Keidel, D L D Keijdener, M Keil, B Ketzer, M Mohisin Khan, P Khan, S A Khan, A Khanzadeev, Y Kharlov, A Khatun, A Khuntia, M M Kielbowicz, B Kileng, D W Kim, D J Kim, D Kim, H Kim, J S Kim, J Kim, M Kim, M Kim, S Kim, T Kim, S Kirsch, I Kisel, S Kiselev, A Kisiel, G Kiss, J L Klay, C Klein, J Klein, C Klein-Bösing, S Klewin, A Kluge, M L Knichel, A G Knospe, C Kobdaj, M Kofarago, T Kollegger, A Kolojvari, V Kondratiev, N Kondratyeva, E Kondratyuk, A Konevskikh, M Kopcik, M Kour, C Kouzinopoulos, O Kovalenko, V Kovalenko, M Kowalski, G Koyithatta Meethaleveedu, I Králik, A Kravčáková, M Krivda, F Krizek, E Kryshen, M Krzewicki, A M Kubera, V Kučera, C Kuhn, P G Kuijer, A Kumar, J Kumar, L Kumar, S Kumar, S Kundu, P Kurashvili, A Kurepin, A B Kurepin, A Kuryakin, S Kushpil, M J Kweon, Y Kwon, S L La Pointe, P La Rocca, C Lagana Fernandes, I Lakomov, R Langoy, K Lapidus, C Lara, A Lardeux, A Lattuca, E Laudi, R Lavicka, L Lazaridis, R Lea, L Leardini, S Lee, F Lehas, S Lehner, J Lehrbach, R C Lemmon, V Lenti, E Leogrande, I León Monzón, P Lévai, S Li, X Li, J Lien, R Lietava, S Lindal, V Lindenstruth, C Lippmann, M A Lisa, V Litichevskyi, H M Ljunggren, W J Llope, D F Lodato, V R Loggins, P I Loenne, V Loginov, C Loizides, P Loncar, X Lopez, E López Torres, A Lowe, P Luettig, M Lunardon, G Luparello, M Lupi, T H Lutz, A Maevskaya, M Mager, S Mahajan, S M Mahmood, A Maire, R D Majka, M Malaev, I Maldonado Cervantes, L Malinina, D Mal'Kevich, P Malzacher, A Mamonov, V Manko, F Manso, V Manzari, Y Mao, M Marchisone, J Mareš, G V Margagliotti, A Margotti, J Margutti, A Marín, C Markert, M Marquard, N A Martin, P Martinengo, J A L Martinez, M I Martínez, G Martínez García, M Martinez Pedreira, A Mas, S Masciocchi, M Masera, A Masoni, A Mastroserio, A M Mathis, A Matyja, C Mayer, J Mazer, M Mazzilli, M A Mazzoni, F Meddi, Y Melikyan, A Menchaca-Rocha, E Meninno, J Mercado Pérez, M Meres, S Mhlanga, Y Miake, M M Mieskolainen, D Mihaylov, K Mikhaylov, L Milano, J Milosevic, A Mischke, A N Mishra, D Miśkowiec, J Mitra, C M Mitu, N Mohammadi, B Mohanty, E Montes, D A Moreira De Godoy, L A P Moreno, S Moretto, A Morreale, A Morsch, V Muccifora, E Mudnic, D Mühlheim, S Muhuri, M Mukherjee, J D Mulligan, M G Munhoz, K Münning, R H Munzer, H Murakami, S Murray, L Musa, J Musinsky, C J Myers, B Naik, R Nair, B K Nandi, R Nania, E Nappi, M U Naru, H Natal da Luz, C Nattrass, S R Navarro, K Nayak, R Nayak, T K Nayak, S Nazarenko, A Nedosekin, R A Negrao De Oliveira, L Nellen, S V Nesbo, F Ng, M Nicassio, M Niculescu, J Niedziela, B S Nielsen, S Nikolaev, S Nikulin, V Nikulin, F Noferini, P Nomokonov, G Nooren, J C C Noris, J Norman, A Nyanin, J Nystrand, H Oeschler, S Oh, A Ohlson, T Okubo, L Olah, J Oleniacz, A C Oliveira Da Silva, M H Oliver, J Onderwaater, C Oppedisano, R Orava, M Oravec, A Ortiz Velasquez, A Oskarsson, J Otwinowski, K Oyama, M Ozdemir, Y Pachmayer, V Pacik, D Pagano, P Pagano, G Paić, S K Pal, P Palni, J Pan, A K Pandey, S Panebianco, V Papikyan, G S Pappalardo, P Pareek, J Park, W J Park, S Parmar, A Passfeld, S P Pathak, V Paticchio, R N Patra, B Paul, H Pei, T Peitzmann, X Peng, L G Pereira, H Pereira Da Costa, D Peresunko, E Perez Lezama, V Peskov, Y Pestov, V Petráček, V Petrov, M Petrovici, C Petta, R P Pezzi, S Piano, M Pikna, P Pillot, L O D L Pimentel, O Pinazza, L Pinsky, D B Piyarathna, M Płoskoń, M Planinic, J Pluta, S Pochybova, P L M Podesta-Lerma, M G Poghosyan, B Polichtchouk, N Poljak, W Poonsawat, A Pop, H Poppenborg, S Porteboeuf-Houssais, J Porter, J Pospisil, V Pozdniakov, S K Prasad, R Preghenella, F Prino, C A Pruneau, I Pshenichnov, M Puccio, G Puddu, P Pujahari, V Punin, J Putschke, H Qvigstad, A Rachevski, S Raha, S Rajput, J Rak, A Rakotozafindrabe, L Ramello, F Rami, D B Rana, R Raniwala, S Raniwala, S S Räsänen, B T Rascanu, D Rathee, V Ratza, I Ravasenga, K F Read, K Redlich, A Rehman, P Reichelt, F Reidt, X Ren, R Renfordt, A R Reolon, A Reshetin, K Reygers, V Riabov, R A Ricci, T Richert, M Richter, P Riedler, W Riegler, F Riggi, C Ristea, M Rodríguez Cahuantzi, K Røed, E Rogochaya, D Rohr, D Röhrich, P S Rokita, F Ronchetti, L Ronflette, P Rosnet, A Rossi, A Rotondi, F Roukoutakis, A Roy, C Roy, P Roy, A J Rubio Montero, R Rui, R Russo, A Rustamov, E Ryabinkin, Y Ryabov, A Rybicki, S Saarinen, S Sadhu, S Sadovsky, K Šafařík, S K Saha, B Sahlmuller, B Sahoo, P Sahoo, R Sahoo, S Sahoo, P K Sahu, J Saini, S Sakai, M A Saleh, J Salzwedel, S Sambyal, V Samsonov, A Sandoval, D Sarkar, N Sarkar, P Sarma, M H P Sas, E Scapparone, F Scarlassara, R P Scharenberg, H S Scheid, C Schiaua, R Schicker, C Schmidt, H R Schmidt, M O Schmidt, M Schmidt, J Schukraft, Y Schutz, K Schwarz, K Schweda, G Scioli, E Scomparin, R Scott, M Šefčík, J E Seger, Y Sekiguchi, D Sekihata, I Selyuzhenkov, K Senosi, S Senyukov, E Serradilla, P Sett, A Sevcenco, A Shabanov, A Shabetai, O Shadura, R Shahoyan, A Shangaraev, A Sharma, A Sharma, M Sharma, M Sharma, N Sharma, A I Sheikh, K Shigaki, Q Shou, K Shtejer, Y Sibiriak, S Siddhanta, K M Sielewicz, T Siemiarczuk, D Silvermyr, C Silvestre, G Simatovic, G Simonetti, R Singaraju, R Singh, V Singhal, T Sinha, B Sitar, M Sitta, T B Skaali, M Slupecki, N Smirnov, R J M Snellings, T W Snellman, J Song, M Song, F Soramel, S Sorensen, F Sozzi, E Spiriti, I Sputowska, B K Srivastava, J Stachel, I Stan, P Stankus, E Stenlund, J H Stiller, D Stocco, P Strmen, A A P Suaide, T Sugitate, C Suire, M Suleymanov, M Suljic, R Sultanov, M Šumbera, S Sumowidagdo, K Suzuki, S Swain, A Szabo, I Szarka, A Szczepankiewicz, M Szymanski, U Tabassam, J Takahashi, G J Tambave, N Tanaka, M Tarhini, M Tariq, M G Tarzila, A Tauro, G Tejeda Muñoz, A Telesca, K Terasaki, C Terrevoli, B Teyssier, D Thakur, S Thakur, D Thomas, R Tieulent, A Tikhonov, A R Timmins, A Toia, S Tripathy, S Trogolo, G Trombetta, V Trubnikov, W H Trzaska, B A Trzeciak, T Tsuji, A Tumkin, R Turrisi, T S Tveter, K Ullaland, E N Umaka, A Uras, G L Usai, A Utrobicic, M Vala, J Van Der Maarel, J W Van Hoorne, M van Leeuwen, T Vanat, P Vande Vyvre, D Varga, A Vargas, M Vargyas, R Varma, M Vasileiou, A Vasiliev, A Vauthier, O Vázquez Doce, V Vechernin, A M Veen, A Velure, E Vercellin, S Vergara Limón, R Vernet, R Vértesi, L Vickovic, S Vigolo, J Viinikainen, Z Vilakazi, O Villalobos Baillie, A Villatoro Tello, A Vinogradov, L Vinogradov, T Virgili, V Vislavicius, A Vodopyanov, M A Völkl, K Voloshin, S A Voloshin, G Volpe, B von Haller, I Vorobyev, D Voscek, D Vranic, J Vrláková, B Wagner, J Wagner, H Wang, M Wang, D Watanabe, Y Watanabe, M Weber, S G Weber, D F Weiser, J P Wessels, U Westerhoff, A M Whitehead, J Wiechula, J Wikne, G Wilk, J Wilkinson, G A Willems, M C S Williams, B Windelband, W E Witt, S Yalcin, P Yang, S Yano, Z Yin, H Yokoyama, I-K Yoo, J H Yoon, V Yurchenko, V Zaccolo, A Zaman, C Zampolli, H J C Zanoli, S Zaporozhets, N Zardoshti, A Zarochentsev, P Závada, N Zaviyalov, H Zbroszczyk, M Zhalov, H Zhang, X Zhang, Y Zhang, C Zhang, Z Zhang, C Zhao, N Zhigareva, D Zhou, Y Zhou, Z Zhou, H Zhu, J Zhu, X Zhu, A Zichichi, A Zimmermann, M B Zimmermann, S Zimmermann, G Zinovjev, J Zmeskal
We present the first azimuthally differential measurements of the pion source size relative to the second harmonic event plane in Pb-Pb collisions at a center-of-mass energy per nucleon-nucleon pair of sqrt[s_{NN}]=2.76  TeV. The measurements have been performed in the centrality range 0%-50% and for pion pair transverse momenta 0.2<k_{T}<0.7  GeV/c. We find that the R_{side} and R_{out} radii, which characterize the pion source size in the directions perpendicular and parallel to the pion transverse momentum, oscillate out of phase, similar to what was observed at the Relativistic Heavy Ion Collider...
June 2, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28618662/a-one-year-on-line-multi-site-observational-study-on-water-soluble-inorganic-ions-in-pm2-5-over-the-pearl-river-delta-region-china
#12
Jian Liu, Dui Wu, Shaojia Fan, Xia Mao, Huizhong Chen
As the significant components of PM2.5, almost all of previous studies on water-soluble inorganic ions (WSIIs) have been limited by the use of single sampling station, short sampling times or low temporal resolution. This paper focuses on analysing one-year (2012) observations of WSIIs at a regional central (RCEN) site, a coastal urban (CURB) site and a coastal rural (CRUR) site in the Pearl River Delta region. On average, secondary inorganic aerosols (SIA) were the most abundant component and accounted for over 80% of the total WSIIs...
June 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28617190/experimental-and-theoretical-studies-of-cadmium-ions-absorption-by-a-new-reduced-recombinant-defensin
#13
Karim Mahnam, Samira Foruzandeh, Neda Mirakhorli, Behnaz Saffar
Heavy metal pollutants such as Cd, Hg, Pb, As and Se are considered as both a global problem and a growing threat to the humanity. Being strongly poisonous to the metal-sensitive enzymes and leading to the growth inhibition and death of organisms, these metals have a toxic impact on the plants and animals. Inducing the metal-binding cysteine-rich peptides such as metallothioneins, phytochelatins, and defensins, higher organisms like plants and animals usually react to the heavy metal stress. In this study, a recombinant defensin protein was expressed in bean and its ability in the cadmium absorption was determined...
June 15, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/28613906/spectro-electrochemical-probing-of-intrinsic-and-extrinsic-processes-in-exciton-recombination-in-i-iii-vi2-nanocrystals
#14
Valerio Pinchetti, Monica Lorenzon, Hunter McDaniel, Roberto Lorenzi, Francesco Meinardi, Victor I Klimov, Sergio Brovelli
Ternary CuInS2 nanocrystals (CIS NCs) are attracting attention as non-toxic alternatives to heavy metal-based chalcogenides for many technologically relevant applications. The photophysical processes underlying their emission mechanism are, however, still under debate. Here we address this problem by applying, for the first time, spectro-electrochemical methods to core-only CIS and core/shell CIS/ZnS NCs. The application of an electrochemical potential enables us to reversibly tune the NC Fermi energy and thereby control the occupancy of intra-gap defects involved in exciton decay...
June 14, 2017: Nano Letters
https://www.readbyqxmd.com/read/28609093/disilicate-assisted-iron-electrolysis-for-sequential-fenton-oxidation-and-coagulation-of-aqueous-contaminants
#15
Jiaxin Cui, Xu Wang, Jing Zhang, Xiaoyu Qiu, Dihua Wang, Ying Zhao, Beidou Xi, Akram Alshawabkeh, Xuhui Mao
Sodium disilicate (SD), an inorganic and environmentally friendly ligand, is introduced into the conventional iron electrolysis system to achieve an oxidizing Fenton process to degrade organic pollutants. Electrolytic ferrous ions, which are complexed by the disilicate ions, can chemically reduce dioxygen molecules via consecutive reduction steps, producing H2O2 for the Fenton-oxidation of organics. At the near-neutral pH (from 6 to 8), the disilicate-Fe(II) complexes possess strong reducing capabilities; therefore, a near-neutral pH rather than an acid condition is preferable for the disilicate-assisted iron electrolysis (DAIE) process...
June 13, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28607353/robust-water-repellent-zno-nanorod-array-by-swift-heavy-ion-irradiation-effect-of-electronic-excitation-induced-local-chemical-state-modification
#16
Kugalur Shanmugam Ranjith, Lalitha Raveendran Nivedita, Kandasami Asokan, Satheesh Krishnamurthy, Ramanathaswamy Pandian, Mohammed Kamruddin, Devesh Kumar Avasthi, Ramasamy Thangavelu Rajendra Kumar
Tailoring the surface properties by varying the chemistry and roughness could be of interest for self-cleaning applications. We demonstrate the transformation of hydrophobic ZnO Nano rod (NR) array into superhydrophobic nature by changing the local chemical state and without altering the surface roughness by swift heavy ion (SHI) irradiation. The aligned ZnO NR arrays were irradiated using 150 MeV Ag ions with different fluences from 5E10 to 3E12 ions/cm(2). The observed static water contact angles of ZnO NRs samples were 103° ± 3°, 152° ± 4°,161° ± 3°, 164° ± 2°, 167° ± 2°,154 ± 3° and 151° ± 2° for the pristine, ion fluencies of 1E11, 3E11, 5E11, 7E11, 1E12 and 3E12 ions cm(-2), respectively...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28604335/salinicola-tamaricis-sp-nov-a-heavy-metal-tolerant-endophytic-bacterium-isolated-from-the-halophyte-tamarix-chinensis-lour
#17
Guo-Yan Zhao, Li-Ya Zhao, Zhi-Jie Xia, Jin-Lei Zhu, Di Liu, Chun-Yue Liu, Xiu-Lan Chen, Yu-Zhong Zhang, Xi-Ying Zhang, Mei-Xue Dai
A Gram-stain-negative, rod-shaped bacterium, strain F01T, was isolated from leaves of Tamarix chinensis Lour. The isolate grew optimally at 30 °C, at pH 7.0 and with 5.0 % (w/v) NaCl, and showed a high tolerance to manganese, lead, nickel, ferrous ions and copper ions. The major fatty acids were C18 : 1ω7c and C16 : 0, and the predominant respiratory quinone was Q-9. Polar lipids were dominated by diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, unidentified aminoglycolipids and phospholipids...
June 13, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28600942/single-and-binary-adsorption-of-heavy-metal-ions-from-aqueous-solutions-using-sugarcane-cellulose-based-adsorbent
#18
Futao Wang, Yuanfeng Pan, Pingxiong Cai, Tianxiang Guo, Huining Xiao
A high efficient and eco-friendly sugarcane cellulose-based adsorbent was prepared in an attempt to remove Pb(2+), Cu(2+) and Zn(2+) from aqueous solutions. The effects of initial concentration of heavy metal ions and temperature on the adsorption capacity of the bioadsorbent were investigated. The adsorption isotherms showed that the adsorption of Pb(2+), Cu(2+) and Zn(2+) followed the Langmuir model and the maximum adsorptions were as high as 558.9, 446.2 and 363.3mg·g(-1), respectively, in single component system...
May 29, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28599495/investigation-of-the-relative-biological-effectiveness-and-uniform-isobiological-killing-effects-of-irradiation-with-a-clinical-carbon-sobp-beam-on-dna-repair-deficient-cho-cells
#19
Shigeaki Sunada, Ian M Cartwright, Hirokazu Hirakawa, Akira Fujimori, Mitsuru Uesaka, Takamitsu A Kato
Spread-out Bragg peak (SOBP) C ions have been used clinically in charged particle radiation therapy for years. An SOBP beam consists of various monoenergetic Bragg peaks; however, the biological effect of irradiation with an SOBP beam track has not been well-studied. In order to determine the clinically prospective molecular targets, radiosensitivity to the beam track in DNA repair deficient cell lines was investigated. A total of four distinct Chinese hamster ovary (CHO) cell lines, including CHO10B2 (wild-type), V3 (protein kinase DNA-activated catalytic polypeptide deficient), 51D1 (RAD51 paralog D deficient) and PADR9 [poly(ADP-ribose) polymerase (PARP) deficient], were irradiated with gamma-rays, C ions (290 MeV/n) and Fe ions (500 MeV/n), in order to compare cellular lethality...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28598362/carbon-ion-radiotherapy-a-review-of-clinical-experiences-and-preclinical-research-with-an-emphasis-on-dna-damage-repair
#20
REVIEW
Osama Mohamad, Brock J Sishc, Janapriya Saha, Arnold Pompos, Asal Rahimi, Michael D Story, Anthony J Davis, D W Nathan Kim
Compared to conventional photon-based external beam radiation (PhXRT), carbon ion radiotherapy (CIRT) has superior dose distribution, higher linear energy transfer (LET), and a higher relative biological effectiveness (RBE). This enhanced RBE is driven by a unique DNA damage signature characterized by clustered lesions that overwhelm the DNA repair capacity of malignant cells. These physical and radiobiological characteristics imbue heavy ions with potent tumoricidal capacity, while having the potential for simultaneously maximally sparing normal tissues...
June 9, 2017: Cancers
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