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AAPM 2025 - 67th Annual Meeting & Exhibition of the American Association of Physicists in Medicine

Tumor Imaging Improved by Oxygen Nanosensor Technology

By MedImaging International staff writers
Posted on 01 Sep 2009

A newly developed material, an oxygen nanosensor that couples a light-emitting dye with a biopolymer, simplifies the imaging of oxygen-deficient regions of tumors. Such tumors are associated with increased cancer aggressiveness and are particularly difficult to treat.

Oxygen nanosensors are powerful new research tools that one day may also be used for the diagnosis and detection of diseases and for planning treatment strategies. The new material is based on poly(lactic acid), a biorenewable, biodegradable polymer that is safe for the body and the environment, and is easy and inexpensive to fabricate in many forms, including fibers, films, and nanoparticles. It is useful for medical research as well as environmental research, sustainable design and green products, too.

The versatile sensor material is the result of research combining green chemistry with nanotechnology, and is reported in the August 2009 online edition of the journal Nature Materials. Chemists from the University of Virginia (UVa; Charlottesville, USA) developed the material and consulted with cancer researchers at the UVa Cancer Center and Duke University Medical Center (Durham, NC, USA; http://medschool.duke.edu) to determine possible applications.

Guoqing Zhang, a UVa chemistry doctoral candidate, working with Dr. Cassandra Fraser, a UVa chemistry professor, synthesized the new material by combining a corn-based biopolymer with a dye that is both fluorescent and phosphorescent. The phosphorescence appears as a long-lived afterglow that is only evident under low oxygen or oxygen-free conditions.

Mr. Zhang devised a method to adjust the relative intensities of short-lived blue fluorescence and long-lived yellow phosphorescence, ultimately creating a calibrated colorful glow that allows visualization of even minute levels of oxygen. The biomaterial displays its oxygen-sensitive phosphorescence at room or body temperature, making it ideal for use in tissues.

"We were amazed at how easy the material was to synthesize and fabricate as films and nanoparticles, and how useful it is for measuring low oxygen concentrations,” Dr. Fraser said.

"It is based on a bio-friendly material,” added Dr. Zhang. "It is safe for the body and the environment, and so we realized it could have applications not just for medical research and developing improved disease treatments, but also for new sustainable technologies.”

Cancer researchers promptly realized that the new material could be particularly useful for real-time and extended-time spatial mapping of oxygen levels in tumors. This is important because a lack of sufficient oxygen in tumors, called hypoxia, is a major source of resistance to radiation and chemotherapy treatment, and promotes a greater degree of malignancy. "We have found that these nanoparticles were directly applicable to our existing tumor models,” said Greg Palmer, assistant professor of radiation oncology at Duke University Medical Center. "This technology will enable us to better characterize the influence of tumor hypoxia on tumor growth and treatment response.”

Researchers and clinicians have long looked for effective ways to locate and map low-oxygen areas in the body to understand better normal and disease processes. At present, there are no simple, easy, or inexpensive methods, preclinical or clinical, for generating oxygen maps of tumors and surrounding tissues with good spatial and temporal resolution.

"The method developed here holds great promise for being able to perform measurements of tumor hypoxia cost-effectively,” said study coauthor Dr. Mark Dewhirst, a professor of radiation oncology, pathology, and biomedical engineering at Duke. "This kind of tool could greatly increase our knowledge about methods to eliminate tumor hypoxia, which could lead to more effective treatments.”

"Tumors that have insufficient oxygen tend to be more likely to spread from the primary site to other parts of the body,” added Dr. Michael Weber, director of UVa's Cancer Center. "Despite the overall importance of tumor hypoxia, it is very difficult to measure directly and most methods that are available are very expensive.”

The new material currently is being used in preclinical studies to gain insight into cancer biology and treatment response, which could be useful for drug development and testing. "This technology enables entirely new insights to be obtained, allowing imaging of tumor hypoxia on the scale of tumor cells and small blood vessels,” Dr. Palmer said.

Eventually the material could be used as an injectable nanosensor, potentially providing continual data on oxygen levels, biologic processes, and therapy responsiveness. Hypoxia also is linked to cardiovascular disease, stroke, and diabetes, so the material developed by Mr. Zhang and Dr. Fraser could have applications in several areas of medicine.

Applications for the light-emitting biomaterial beyond medicine include molecular probes for cell biology, imaging agents for visualizing fluid and aerodynamics, and oxygen sensors for food and drug packaging, tamper resistant seals, and environmental monitoring, such as measuring oxygen levels in bodies of water.

Related Links:
University of Virginia
Duke University Medical Center

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56 (468.96934509277): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294725235 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1

57 (!!!!! 1610.9943389893): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

58 (90.122222900391): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

59 (142.09747314453): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

60 (70.095062255859): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

61 (92.029571533203): select cover from jos_number where journalid in (5) and cover is not null order by left(issue,2)+right(issue,2)*12 desc limit 1

62 (566.00570678711): SELECT fid FROM jos_deeppockets WHERE id=294725235 AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE id=294725235 AND published='1' LIMIT 1

63 (383.85391235352): SELECT id,name,sponsor_text FROM jos_deeppockets dp left outer join jos_channel_sponsor cs on dp.id=cs.fid WHERE cat=10 AND TYPE='file_folder' AND published=1 AND id=212 ORDER BY `ordering`

64 (66.995620727539): select jos_twitters.link from jos_twitters where cat=10

65 (41.961669921875): select jos_facebook.link from jos_facebook where cat=10

66 (46.014785766602): select jos_google_plus.link from jos_google_plus where cat=10

67 (44.107437133789): select jos_linkedin.link from jos_linkedin where cat=10

68 (51.021575927734): SELECT fid FROM jos_deeppockets WHERE id=294725235 AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE id=294725235 AND published='1' LIMIT 1

69 (35.04753112793): SELECT id,name,sponsor_text FROM jos_deeppockets dp left outer join jos_channel_sponsor cs on dp.id=cs.fid WHERE cat=10 AND TYPE='file_folder' AND published=1 AND id=212 ORDER BY `ordering`

70 (262.02201843262): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294725235 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

71 (230.78918457031): SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294725235 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

72 (55.074691772461): SELECT id,name,title FROM jos_deeppockets WHERE cat=10 AND TYPE='file_folder' AND published=1 AND id != 294743300 AND id != 294743301 AND id != 294743302 AND id != 294743303 AND id != 294743304 AND id != 294743305 AND id != 294743306 AND id != 294743307 AND id != 294743308 AND id != 294743309 AND id != 294743310 AND metakey != 'aacc' ORDER BY `ordering`

73 (80.82389831543): SELECT show_live FROM jos_com_show_setting LIMIT 1

74 (60.081481933594): SELECT show_live FROM jos_com_show_setting LIMIT 1

75 (51.975250244141): SELECT show_live FROM jos_com_show_setting LIMIT 1

76 (43.153762817383): SELECT show_live FROM jos_com_show_setting LIMIT 1

77 (45.061111450195): SELECT show_live FROM jos_com_show_setting LIMIT 1

78 (41.961669921875): SELECT show_live FROM jos_com_show_setting LIMIT 1

79 (46.968460083008): SELECT show_live FROM jos_com_show_setting LIMIT 1

80 (41.961669921875): SELECT show_live FROM jos_com_show_setting LIMIT 1

81 (46.968460083008): SELECT show_live FROM jos_com_show_setting LIMIT 1

82 (40.054321289062): SELECT show_live FROM jos_com_show_setting LIMIT 1

83 (49.829483032227): SELECT show_live FROM jos_com_show_setting LIMIT 1

84 (44.107437133789): SELECT show_live FROM jos_com_show_setting LIMIT 1

85 (43.869018554688): SELECT show_live FROM jos_com_show_setting LIMIT 1

86 (40.054321289062): SELECT show_live FROM jos_com_show_setting LIMIT 1

87 (69.141387939453): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294725235 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

88 (32.901763916016): SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294725235 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

89 (37.193298339844): SELECT id,name,title FROM jos_deeppockets WHERE cat=10 AND TYPE='file_folder' AND published=1 AND id != 294743300 AND id != 294743301 AND id != 294743302 AND id != 294743303 AND id != 294743304 AND id != 294743305 AND id != 294743306 AND id != 294743307 AND id != 294743308 AND id != 294743309 AND id != 294743310 AND metakey != 'aacc' ORDER BY `ordering`

90 (62.942504882812): SELECT show_live FROM jos_com_show_setting LIMIT 1

91 (38.14697265625): SELECT show_live FROM jos_com_show_setting LIMIT 1

92 (41.007995605469): SELECT show_live FROM jos_com_show_setting LIMIT 1

93 (35.04753112793): SELECT show_live FROM jos_com_show_setting LIMIT 1

94 (37.908554077148): SELECT show_live FROM jos_com_show_setting LIMIT 1

95 (34.093856811523): SELECT show_live FROM jos_com_show_setting LIMIT 1

96 (57.93571472168): SELECT show_live FROM jos_com_show_setting LIMIT 1

97 (36.001205444336): SELECT show_live FROM jos_com_show_setting LIMIT 1

98 (35.04753112793): SELECT show_live FROM jos_com_show_setting LIMIT 1

99 (32.901763916016): SELECT show_live FROM jos_com_show_setting LIMIT 1

100 (33.140182495117): SELECT show_live FROM jos_com_show_setting LIMIT 1

101 (62.942504882812): SELECT show_live FROM jos_com_show_setting LIMIT 1

102 (33.855438232422): SELECT show_live FROM jos_com_show_setting LIMIT 1

103 (34.093856811523): SELECT show_live FROM jos_com_show_setting LIMIT 1

104 (99.897384643555): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

105 (56.982040405273): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

106 (68.902969360352): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294725235 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1

107 (63.896179199219): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294725235 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1

108 (92.983245849609): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

109 (61.03515625): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

110 (77.009201049805): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294725235 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1

111 (730.99136352539): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294725235 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1

112 (604.86793518066): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1

113 (370.02563476562): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1

114 (76.055526733398): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

115 (46.014785766602): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

116 (78.916549682617): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

117 (42.200088500977): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

118 (48.87580871582): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

119 (39.100646972656): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

120 (127.07710266113): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

121 (56.982040405273): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

122 (296.11587524414): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`

123 (!!!!! 25233.98399353): SELECT * FROM jos_deeppockets WHERE jos_deeppockets.cat = 10 AND jos_deeppockets.type = 'deeppockets_item' AND jos_deeppockets.published = 1 AND jos_deeppockets.created + INTERVAL 14 DAY >= NOW() ORDER BY jos_deeppockets.hits DESC LIMIT 7

124 (615.11993408203): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294725235 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294725235 AND type='deeppockets_item' AND published='1' LIMIT 1

125 (!!!!! 11406.898498535): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3

126 (112.05673217773): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3

127 (387.90702819824): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803337 LIMIT 1

128 (56.028366088867): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803337 LIMIT 1

129 (370.97930908203): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803276 LIMIT 1

130 (57.93571472168): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803276 LIMIT 1

131 (635.86235046387): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets_archive AS dp WHERE dp.id = 294803276 LIMIT 1

132 (51.975250244141): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets_archive AS dp WHERE dp.id = 294803276 LIMIT 1

133 (378.13186645508): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294802958 LIMIT 1

134 (54.121017456055): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294802958 LIMIT 1

135 (598.19221496582): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

136 (552.89268493652): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

137 (463.96255493164): SELECT name FROM jos_deeppockets WHERE id=212

138 (51.975250244141): SELECT name FROM jos_deeppockets WHERE id=212

139 (743.86596679688): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3

140 (627.99453735352): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3

141 (111.10305786133): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

142 (50.067901611328): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

143 (!!!!! 8318.9010620117): TRUNCATE TABLE jos_trademed_module

144 (86.069107055664): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294725235 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1

145 (58.174133300781): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294725235 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1

146 (874.99618530273): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

147 (59.127807617188): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

148 (56.982040405273): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

149 (41.961669921875): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

150 (!!!!! 1405.9543609619): SELECT jos_item.* FROM jos_item INNER JOIN jos_number ON jos_item.numberID=jos_number.id WHERE 1=1 AND (jos_item.imgMini<>'') AND jos_item.type='L' AND jos_item.numberID= ( SELECT jos_number.id FROM jos_number WHERE jos_number.journalID IN (10) and jos_number.id in (select distinct jos_number.id from jos_number join jos_item on jos_item.numberid=jos_number.id where jos_item.type='P') ORDER BY (CONVERT(SUBSTRING(issue,1,2),SIGNED) + (CONVERT(SUBSTRING(issue,3,2),SIGNED)*100)) DESC LIMIT 0,1 ) ORDER BY RAND() DESC LIMIT 6

151 (61.03515625): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

152 (41.007995605469): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

153 (33.140182495117): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294725235 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294725235 AND type='deeppockets_item' AND published='1' LIMIT 1

154 (29.087066650391): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=212 or channel_id is null)

155 (26.941299438477): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=212 or channel_id is null)

156 (28.848648071289): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1

157 (133.03756713867): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

158 (59.843063354492): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294725235 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294725235 AND published='1' LIMIT 1

159 (99.18212890625): select jos_twitters.link from jos_twitters where cat=10

160 (27.894973754883): select jos_facebook.link from jos_facebook where cat=10

161 (27.894973754883): select jos_google_plus.link from jos_google_plus where cat=10

162 (26.941299438477): select jos_linkedin.link from jos_linkedin where cat=10

163 (293.01643371582): update jos_bannersmanager_banner set impmade=impmade+1 where id in(14615,14202,14203)

164 (905.99060058594): insert into jos_banners_delta values (14615,'2025-06-29 05:51:35','216.73.216.249','view'),(14202,'2025-06-29 05:51:35','216.73.216.249','view'),(14203,'2025-06-29 05:51:35','216.73.216.249','view')

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